Installation of pip package fails on Debian / Ubuntu stable versions

[ghost]

I'm trying to install the package on debian stable like so:

# Create venv
mkvirtualenv -p python3 celery-exporter

# Install rust version manager
curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh
source $HOME/.cargo/env

# Install rust nightly (celery-exporter wants either nightly or dev)
rustup toolchain install nightly
rustup default nightly

# Install exporter pip requirements
sudo apt-get -y install python3-dev python-dev
pip install setuptools-rust

# Install exporter
pip install celery-exporter

However the last command fails with:

+ pip install celery-exporter
Collecting celery-exporter
  Using cached celery-exporter-1.4.0.tar.gz (11 kB)
Collecting click>=7celery>=4
  Using cached click-8.0.0a1-py3-none-any.whl (89 kB)
Collecting prometheus_client>=0.0.20
  Using cached prometheus_client-0.9.0-py2.py3-none-any.whl (53 kB)
Building wheels for collected packages: celery-exporter
  Building wheel for celery-exporter (setup.py) ... error
  ERROR: Command errored out with exit status 1:
   command: /usr/bin/python3 -u -c 'import sys, setuptools, tokenize; sys.argv[0] = '"'"'/tmp/pip-install-48lrbb0c/celery-exporter/setup.py'"'"'; __file__='"'"'/tmp/pip-install-48lrbb0c/celery-exporter/setup.py'"'"';f=getattr(tokenize, '"'"'open'"'"', open)(__file__);code=f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' bdist_wheel -d /tmp/pip-wheel-ulzvc5z9
       cwd: /tmp/pip-install-48lrbb0c/celery-exporter/
  Complete output (1513 lines):
  running bdist_wheel
  running build
  running build_py
  creating build
  creating build/lib
  creating build/lib/celery_exporter
  copying celery_exporter/monitor.py -> build/lib/celery_exporter
  copying celery_exporter/__main__.py -> build/lib/celery_exporter
  copying celery_exporter/metrics.py -> build/lib/celery_exporter
  copying celery_exporter/utils.py -> build/lib/celery_exporter
  copying celery_exporter/__init__.py -> build/lib/celery_exporter
  copying celery_exporter/core.py -> build/lib/celery_exporter
  running build_ext
  running build_rust
      Updating crates.io index
  cargo rustc --lib --manifest-path Cargo.toml --features pyo3/extension-module --release --verbose -- --crate-type cdylib
     Compiling proc-macro2 v0.4.30
     Compiling proc-macro2 v1.0.24
     Compiling unicode-xid v0.2.1
     Compiling unicode-xid v0.1.0
     Compiling memchr v2.3.4
     Compiling syn v1.0.60
     Compiling syn v0.15.44
     Compiling proc-macro-hack-impl v0.4.2
       Running `rustc --crate-name build_script_build /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/proc-macro2-0.4.30/build.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type bin --emit=dep-info,link -C embed-bitcode=no -C debug-assertions=off --cfg 'feature="default"' --cfg 'feature="proc-macro"' -C metadata=bc746ed6ac1291cb -C extra-filename=-bc746ed6ac1291cb --out-dir /tmp/pip-install-48lrbb0c/celery-exporter/target/release/build/proc-macro2-bc746ed6ac1291cb -L dependency=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps --cap-lints allow`
       Running `rustc --crate-name build_script_build --edition=2018 /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/proc-macro2-1.0.24/build.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type bin --emit=dep-info,link -C embed-bitcode=no -C debug-assertions=off --cfg 'feature="default"' --cfg 'feature="proc-macro"' -C metadata=70b9ba8e0873bfca -C extra-filename=-70b9ba8e0873bfca --out-dir /tmp/pip-install-48lrbb0c/celery-exporter/target/release/build/proc-macro2-70b9ba8e0873bfca -L dependency=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps --cap-lints allow`
       Running `rustc --crate-name unicode_xid /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/unicode-xid-0.2.1/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no -C debug-assertions=off --cfg 'feature="default"' -C metadata=222f0e750869ec41 -C extra-filename=-222f0e750869ec41 --out-dir /tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps -L dependency=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps --cap-lints allow`
       Running `rustc --crate-name unicode_xid /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/unicode-xid-0.1.0/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no -C debug-assertions=off --cfg 'feature="default"' -C metadata=5f6f0613524b3651 -C extra-filename=-5f6f0613524b3651 --out-dir /tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps -L dependency=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps --cap-lints allow`
       Running `rustc --crate-name build_script_build /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/memchr-2.3.4/build.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type bin --emit=dep-info,link -C embed-bitcode=no -C debug-assertions=off --cfg 'feature="default"' --cfg 'feature="std"' --cfg 'feature="use_std"' -C metadata=d3c835bf5eabb0a7 -C extra-filename=-d3c835bf5eabb0a7 --out-dir /tmp/pip-install-48lrbb0c/celery-exporter/target/release/build/memchr-d3c835bf5eabb0a7 -L dependency=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps --cap-lints allow`
       Running `rustc --crate-name build_script_build --edition=2018 /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/syn-1.0.60/build.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type bin --emit=dep-info,link -C embed-bitcode=no -C debug-assertions=off --cfg 'feature="clone-impls"' --cfg 'feature="default"' --cfg 'feature="derive"' --cfg 'feature="full"' --cfg 'feature="parsing"' --cfg 'feature="printing"' --cfg 'feature="proc-macro"' --cfg 'feature="quote"' -C metadata=93a041d8813e8d95 -C extra-filename=-93a041d8813e8d95 --out-dir /tmp/pip-install-48lrbb0c/celery-exporter/target/release/build/syn-93a041d8813e8d95 -L dependency=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps --cap-lints allow`
       Running `rustc --crate-name build_script_build /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/syn-0.15.44/build.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type bin --emit=dep-info,link -C embed-bitcode=no -C debug-assertions=off --cfg 'feature="clone-impls"' --cfg 'feature="default"' --cfg 'feature="derive"' --cfg 'feature="extra-traits"' --cfg 'feature="full"' --cfg 'feature="parsing"' --cfg 'feature="printing"' --cfg 'feature="proc-macro"' --cfg 'feature="quote"' -C metadata=665f6690189572d3 -C extra-filename=-665f6690189572d3 --out-dir /tmp/pip-install-48lrbb0c/celery-exporter/target/release/build/syn-665f6690189572d3 -L dependency=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps --cap-lints allow`
       Running `rustc --crate-name proc_macro_hack_impl /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/proc-macro-hack-impl-0.4.2/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type proc-macro --emit=dep-info,link -C prefer-dynamic -C embed-bitcode=no -C debug-assertions=off -C metadata=035a5290e2676023 -C extra-filename=-035a5290e2676023 --out-dir /tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps -L dependency=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps --extern proc_macro --cap-lints allow`
     Compiling once_cell v1.5.2
       Running `rustc --crate-name once_cell --edition=2018 /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/once_cell-1.5.2/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no -C debug-assertions=off --cfg 'feature="alloc"' --cfg 'feature="default"' --cfg 'feature="std"' -C metadata=a14ccf1b28fa585e -C extra-filename=-a14ccf1b28fa585e --out-dir /tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps -L dependency=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps --cap-lints allow`
     Compiling regex-syntax v0.6.22
       Running `rustc --crate-name regex_syntax /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/regex-syntax-0.6.22/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no -C debug-assertions=off --cfg 'feature="default"' --cfg 'feature="unicode"' --cfg 'feature="unicode-age"' --cfg 'feature="unicode-bool"' --cfg 'feature="unicode-case"' --cfg 'feature="unicode-gencat"' --cfg 'feature="unicode-perl"' --cfg 'feature="unicode-script"' --cfg 'feature="unicode-segment"' -C metadata=529e8e64405e9a1c -C extra-filename=-529e8e64405e9a1c --out-dir /tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps -L dependency=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps --cap-lints allow`
     Compiling autocfg v1.0.1
       Running `rustc --crate-name autocfg /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/autocfg-1.0.1/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no -C debug-assertions=off -C metadata=eaf3a4b21f4512fc -C extra-filename=-eaf3a4b21f4512fc --out-dir /tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps -L dependency=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps --cap-lints allow`
     Compiling version_check v0.1.5
       Running `rustc --crate-name version_check /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/version_check-0.1.5/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no -C debug-assertions=off -C metadata=0d09839629235ade -C extra-filename=-0d09839629235ade --out-dir /tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps -L dependency=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps --cap-lints allow`
     Compiling inventory v0.1.10
       Running `rustc --crate-name build_script_build --edition=2018 /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/inventory-0.1.10/build.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type bin --emit=dep-info,link -C embed-bitcode=no -C debug-assertions=off -C metadata=e5e69b3c9fdc979f -C extra-filename=-e5e69b3c9fdc979f --out-dir /tmp/pip-install-48lrbb0c/celery-exporter/target/release/build/inventory-e5e69b3c9fdc979f -L dependency=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps --cap-lints allow`
     Compiling libc v0.2.85
       Running `rustc --crate-name build_script_build /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/libc-0.2.85/build.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type bin --emit=dep-info,link -C embed-bitcode=no -C debug-assertions=off --cfg 'feature="default"' --cfg 'feature="std"' -C metadata=5404c481b3a75226 -C extra-filename=-5404c481b3a75226 --out-dir /tmp/pip-install-48lrbb0c/celery-exporter/target/release/build/libc-5404c481b3a75226 -L dependency=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps --cap-lints allow`
     Compiling spin v0.5.2
       Running `rustc --crate-name spin /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/spin-0.5.2/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts --crate-type lib --emit=dep-info,metadata,link -C opt-level=3 -C embed-bitcode=no -C metadata=638b2ded4481154c -C extra-filename=-638b2ded4481154c --out-dir /tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps -L dependency=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps --cap-lints allow`
     Compiling hashbrown v0.5.0
       Running `rustc --crate-name hashbrown --edition=2018 /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/hashbrown-0.5.0/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts --crate-type lib --emit=dep-info,metadata,link -C opt-level=3 -C embed-bitcode=no --cfg 'feature="default"' -C metadata=0ae6d34bb12bf8ea -C extra-filename=-0ae6d34bb12bf8ea --out-dir /tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps -L dependency=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps --cap-lints allow`
     Compiling thread_local v1.1.3
       Running `rustc --crate-name thread_local --edition=2018 /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/thread_local-1.1.3/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no -C debug-assertions=off -C metadata=e60ec9865252cfb1 -C extra-filename=-e60ec9865252cfb1 --out-dir /tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps -L dependency=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps --extern once_cell=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps/libonce_cell-a14ccf1b28fa585e.rmeta --cap-lints allow`
       Running `/tmp/pip-install-48lrbb0c/celery-exporter/target/release/build/memchr-d3c835bf5eabb0a7/build-script-build`
       Running `/tmp/pip-install-48lrbb0c/celery-exporter/target/release/build/syn-665f6690189572d3/build-script-build`
       Running `/tmp/pip-install-48lrbb0c/celery-exporter/target/release/build/syn-93a041d8813e8d95/build-script-build`
       Running `/tmp/pip-install-48lrbb0c/celery-exporter/target/release/build/proc-macro2-70b9ba8e0873bfca/build-script-build`
       Running `/tmp/pip-install-48lrbb0c/celery-exporter/target/release/build/proc-macro2-bc746ed6ac1291cb/build-script-build`
     Compiling proc-macro-hack v0.4.2
       Running `rustc --crate-name proc_macro_hack /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/proc-macro-hack-0.4.2/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no -C debug-assertions=off -C metadata=187068e14d5baf40 -C extra-filename=-187068e14d5baf40 --out-dir /tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps -L dependency=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps --extern proc_macro_hack_impl=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps/libproc_macro_hack_impl-035a5290e2676023.so --cap-lints allow`
       Running `rustc --crate-name proc_macro_hack /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/proc-macro-hack-0.4.2/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts --crate-type lib --emit=dep-info,metadata,link -C opt-level=3 -C embed-bitcode=no -C metadata=d2d214166bb2d48c -C extra-filename=-d2d214166bb2d48c --out-dir /tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps -L dependency=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps --extern proc_macro_hack_impl=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps/libproc_macro_hack_impl-035a5290e2676023.so --cap-lints allow`
       Running `rustc --crate-name memchr /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/memchr-2.3.4/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no -C debug-assertions=off --cfg 'feature="default"' --cfg 'feature="std"' --cfg 'feature="use_std"' -C metadata=396ffb27b4729a17 -C extra-filename=-396ffb27b4729a17 --out-dir /tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps -L dependency=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps --cap-lints allow --cfg memchr_runtime_simd --cfg memchr_runtime_sse2 --cfg memchr_runtime_sse42 --cfg memchr_runtime_avx`
       Running `/tmp/pip-install-48lrbb0c/celery-exporter/target/release/build/inventory-e5e69b3c9fdc979f/build-script-build`
       Running `rustc --crate-name proc_macro2 --edition=2018 /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/proc-macro2-1.0.24/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no -C debug-assertions=off --cfg 'feature="default"' --cfg 'feature="proc-macro"' -C metadata=3d30b1cf012cba61 -C extra-filename=-3d30b1cf012cba61 --out-dir /tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps -L dependency=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps --extern unicode_xid=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps/libunicode_xid-222f0e750869ec41.rmeta --cap-lints allow --cfg lexerror_display --cfg hygiene --cfg use_proc_macro --cfg wrap_proc_macro --cfg proc_macro_span`
       Running `/tmp/pip-install-48lrbb0c/celery-exporter/target/release/build/libc-5404c481b3a75226/build-script-build`
     Compiling num-traits v0.2.14
       Running `rustc --crate-name build_script_build /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/num-traits-0.2.14/build.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type bin --emit=dep-info,link -C embed-bitcode=no -C debug-assertions=off --cfg 'feature="default"' --cfg 'feature="std"' -C metadata=91b8cf90a5e47c8f -C extra-filename=-91b8cf90a5e47c8f --out-dir /tmp/pip-install-48lrbb0c/celery-exporter/target/release/build/num-traits-91b8cf90a5e47c8f -L dependency=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps --extern autocfg=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps/libautocfg-eaf3a4b21f4512fc.rlib --cap-lints allow`
       Running `rustc --crate-name proc_macro2 /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/proc-macro2-0.4.30/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no -C debug-assertions=off --cfg 'feature="default"' --cfg 'feature="proc-macro"' -C metadata=c15da2d35fd6b882 -C extra-filename=-c15da2d35fd6b882 --out-dir /tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps -L dependency=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps --extern unicode_xid=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps/libunicode_xid-5f6f0613524b3651.rmeta --cap-lints allow --cfg u128 --cfg use_proc_macro --cfg wrap_proc_macro --cfg proc_macro_span`
     Compiling lru v0.1.17
       Running `rustc --crate-name lru /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/lru-0.1.17/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type lib --emit=dep-info,metadata,link -C opt-level=3 -C embed-bitcode=no -C metadata=f9e1586075937229 -C extra-filename=-f9e1586075937229 --out-dir /tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps -L dependency=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps --extern hashbrown=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps/libhashbrown-0ae6d34bb12bf8ea.rmeta --cap-lints allow`
       Running `rustc --crate-name libc /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/libc-0.2.85/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts --crate-type lib --emit=dep-info,metadata,link -C opt-level=3 -C embed-bitcode=no --cfg 'feature="default"' --cfg 'feature="std"' -C metadata=9e1e5be5fbec308b -C extra-filename=-9e1e5be5fbec308b --out-dir /tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps -L dependency=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps --cap-lints allow --cfg freebsd11 --cfg libc_priv_mod_use --cfg libc_union --cfg libc_const_size_of --cfg libc_align --cfg libc_core_cvoid --cfg libc_packedN --cfg libc_cfg_target_vendor`
       Running `/tmp/pip-install-48lrbb0c/celery-exporter/target/release/build/num-traits-91b8cf90a5e47c8f/build-script-build`
     Compiling aho-corasick v0.7.15
       Running `rustc --crate-name aho_corasick /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/aho-corasick-0.7.15/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no -C debug-assertions=off --cfg 'feature="default"' --cfg 'feature="std"' -C metadata=1b8dbda8e0b45746 -C extra-filename=-1b8dbda8e0b45746 --out-dir /tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps -L dependency=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps --extern memchr=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps/libmemchr-396ffb27b4729a17.rmeta --cap-lints allow`
     Compiling quote v1.0.8
       Running `rustc --crate-name quote --edition=2018 /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/quote-1.0.8/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no -C debug-assertions=off --cfg 'feature="default"' --cfg 'feature="proc-macro"' -C metadata=6e384319eb964c78 -C extra-filename=-6e384319eb964c78 --out-dir /tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps -L dependency=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps --extern proc_macro2=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps/libproc_macro2-3d30b1cf012cba61.rmeta --cap-lints allow`
     Compiling quote v0.6.13
       Running `rustc --crate-name quote /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/quote-0.6.13/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no -C debug-assertions=off --cfg 'feature="default"' --cfg 'feature="proc-macro"' -C metadata=2210637c5717f8df -C extra-filename=-2210637c5717f8df --out-dir /tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps -L dependency=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps --extern proc_macro2=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps/libproc_macro2-c15da2d35fd6b882.rmeta --cap-lints allow`
       Running `rustc --crate-name num_traits /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/num-traits-0.2.14/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts --crate-type lib --emit=dep-info,metadata,link -C opt-level=3 -C embed-bitcode=no --cfg 'feature="default"' --cfg 'feature="std"' -C metadata=b9cd4cd2c6156acf -C extra-filename=-b9cd4cd2c6156acf --out-dir /tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps -L dependency=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps --cap-lints allow --cfg has_i128 --cfg has_to_int_unchecked`
       Running `rustc --crate-name syn --edition=2018 /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/syn-1.0.60/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no -C debug-assertions=off --cfg 'feature="clone-impls"' --cfg 'feature="default"' --cfg 'feature="derive"' --cfg 'feature="full"' --cfg 'feature="parsing"' --cfg 'feature="printing"' --cfg 'feature="proc-macro"' --cfg 'feature="quote"' -C metadata=8e47350e18924cd4 -C extra-filename=-8e47350e18924cd4 --out-dir /tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps -L dependency=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps --extern proc_macro2=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps/libproc_macro2-3d30b1cf012cba61.rmeta --extern quote=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps/libquote-6e384319eb964c78.rmeta --extern unicode_xid=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps/libunicode_xid-222f0e750869ec41.rmeta --cap-lints allow`
       Running `rustc --crate-name syn /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/syn-0.15.44/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no -C debug-assertions=off --cfg 'feature="clone-impls"' --cfg 'feature="default"' --cfg 'feature="derive"' --cfg 'feature="extra-traits"' --cfg 'feature="full"' --cfg 'feature="parsing"' --cfg 'feature="printing"' --cfg 'feature="proc-macro"' --cfg 'feature="quote"' -C metadata=730e1afe94ec8000 -C extra-filename=-730e1afe94ec8000 --out-dir /tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps -L dependency=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps --extern proc_macro2=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps/libproc_macro2-c15da2d35fd6b882.rmeta --extern quote=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps/libquote-2210637c5717f8df.rmeta --extern unicode_xid=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps/libunicode_xid-5f6f0613524b3651.rmeta --cap-lints allow --cfg syn_can_match_trailing_dollar --cfg syn_can_use_thread_id --cfg syn_can_use_associated_constants --cfg syn_can_call_macro_by_path`
     Compiling mashup-impl v0.1.12
       Running `rustc --crate-name mashup_impl /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/mashup-impl-0.1.12/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type proc-macro --emit=dep-info,link -C prefer-dynamic -C embed-bitcode=no -C debug-assertions=off -C metadata=864c3ceaee8709d5 -C extra-filename=-864c3ceaee8709d5 --out-dir /tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps -L dependency=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps --extern proc_macro_hack=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps/libproc_macro_hack-187068e14d5baf40.rlib --extern proc_macro2=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps/libproc_macro2-c15da2d35fd6b882.rlib --extern proc_macro --cap-lints allow`
     Compiling mashup v0.1.12
       Running `rustc --crate-name mashup /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/mashup-0.1.12/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts --crate-type lib --emit=dep-info,metadata,link -C opt-level=3 -C embed-bitcode=no -C metadata=a1fe0a2bd5505ba2 -C extra-filename=-a1fe0a2bd5505ba2 --out-dir /tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps -L dependency=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps --extern mashup_impl=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps/libmashup_impl-864c3ceaee8709d5.so --extern proc_macro_hack=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps/libproc_macro_hack-d2d214166bb2d48c.rmeta --cap-lints allow`
     Compiling regex v1.4.3
       Running `rustc --crate-name regex /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/regex-1.4.3/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no -C debug-assertions=off --cfg 'feature="aho-corasick"' --cfg 'feature="default"' --cfg 'feature="memchr"' --cfg 'feature="perf"' --cfg 'feature="perf-cache"' --cfg 'feature="perf-dfa"' --cfg 'feature="perf-inline"' --cfg 'feature="perf-literal"' --cfg 'feature="std"' --cfg 'feature="thread_local"' --cfg 'feature="unicode"' --cfg 'feature="unicode-age"' --cfg 'feature="unicode-bool"' --cfg 'feature="unicode-case"' --cfg 'feature="unicode-gencat"' --cfg 'feature="unicode-perl"' --cfg 'feature="unicode-script"' --cfg 'feature="unicode-segment"' -C metadata=a0b1a75da25f17cf -C extra-filename=-a0b1a75da25f17cf --out-dir /tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps -L dependency=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps --extern aho_corasick=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps/libaho_corasick-1b8dbda8e0b45746.rmeta --extern memchr=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps/libmemchr-396ffb27b4729a17.rmeta --extern regex_syntax=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps/libregex_syntax-529e8e64405e9a1c.rmeta --extern thread_local=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps/libthread_local-e60ec9865252cfb1.rmeta --cap-lints allow`
     Compiling pyo3 v0.7.0
       Running `rustc --crate-name build_script_build --edition=2018 /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/pyo3-0.7.0/build.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type bin --emit=dep-info,link -C embed-bitcode=no -C debug-assertions=off --cfg 'feature="default"' --cfg 'feature="extension-module"' -C metadata=ab9c1ea45a3a427e -C extra-filename=-ab9c1ea45a3a427e --out-dir /tmp/pip-install-48lrbb0c/celery-exporter/target/release/build/pyo3-ab9c1ea45a3a427e -L dependency=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps --extern regex=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps/libregex-a0b1a75da25f17cf.rlib --extern version_check=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps/libversion_check-0d09839629235ade.rlib --cap-lints allow`
       Running `/tmp/pip-install-48lrbb0c/celery-exporter/target/release/build/pyo3-ab9c1ea45a3a427e/build-script-build`
     Compiling ctor v0.1.19
     Compiling inventory-impl v0.1.10
     Compiling ghost v0.1.2
       Running `rustc --crate-name ctor --edition=2018 /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/ctor-0.1.19/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type proc-macro --emit=dep-info,link -C prefer-dynamic -C embed-bitcode=no -C debug-assertions=off -C metadata=fb6b9cf2e2199235 -C extra-filename=-fb6b9cf2e2199235 --out-dir /tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps -L dependency=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps --extern quote=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps/libquote-6e384319eb964c78.rlib --extern syn=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps/libsyn-8e47350e18924cd4.rlib --extern proc_macro --cap-lints allow`
       Running `rustc --crate-name inventory_impl --edition=2018 /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/inventory-impl-0.1.10/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type proc-macro --emit=dep-info,link -C prefer-dynamic -C embed-bitcode=no -C debug-assertions=off -C metadata=6254cb54bb9272e6 -C extra-filename=-6254cb54bb9272e6 --out-dir /tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps -L dependency=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps --extern proc_macro2=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps/libproc_macro2-3d30b1cf012cba61.rlib --extern quote=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps/libquote-6e384319eb964c78.rlib --extern syn=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps/libsyn-8e47350e18924cd4.rlib --extern proc_macro --cap-lints allow`
       Running `rustc --crate-name ghost --edition=2018 /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/ghost-0.1.2/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type proc-macro --emit=dep-info,link -C prefer-dynamic -C embed-bitcode=no -C debug-assertions=off -C metadata=61cd961599adf9d8 -C extra-filename=-61cd961599adf9d8 --out-dir /tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps -L dependency=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps --extern proc_macro2=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps/libproc_macro2-3d30b1cf012cba61.rlib --extern quote=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps/libquote-6e384319eb964c78.rlib --extern syn=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps/libsyn-8e47350e18924cd4.rlib --extern proc_macro --cap-lints allow`
     Compiling pyo3-derive-backend v0.7.0
       Running `rustc --crate-name pyo3_derive_backend --edition=2018 /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/pyo3-derive-backend-0.7.0/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no -C debug-assertions=off -C metadata=e2484e0e1a1620aa -C extra-filename=-e2484e0e1a1620aa --out-dir /tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps -L dependency=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps --extern proc_macro2=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps/libproc_macro2-c15da2d35fd6b882.rmeta --extern quote=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps/libquote-2210637c5717f8df.rmeta --extern syn=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps/libsyn-730e1afe94ec8000.rmeta --cap-lints allow`
       Running `rustc --crate-name inventory --edition=2018 /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/inventory-0.1.10/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts --crate-type lib --emit=dep-info,metadata,link -C opt-level=3 -C embed-bitcode=no -C metadata=701eefaf91ecce0c -C extra-filename=-701eefaf91ecce0c --out-dir /tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps -L dependency=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps --extern ctor=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps/libctor-fb6b9cf2e2199235.so --extern ghost=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps/libghost-61cd961599adf9d8.so --extern inventory_impl=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps/libinventory_impl-6254cb54bb9272e6.so --cap-lints allow`
     Compiling pyo3cls v0.7.0
       Running `rustc --crate-name pyo3cls --edition=2018 /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/pyo3cls-0.7.0/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type proc-macro --emit=dep-info,link -C prefer-dynamic -C embed-bitcode=no -C debug-assertions=off -C metadata=98daaa7fb14b4973 -C extra-filename=-98daaa7fb14b4973 --out-dir /tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps -L dependency=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps --extern proc_macro2=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps/libproc_macro2-c15da2d35fd6b882.rlib --extern pyo3_derive_backend=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps/libpyo3_derive_backend-e2484e0e1a1620aa.rlib --extern quote=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps/libquote-2210637c5717f8df.rlib --extern syn=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps/libsyn-730e1afe94ec8000.rlib --extern proc_macro --cap-lints allow`
       Running `rustc --crate-name pyo3 --edition=2018 /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/pyo3-0.7.0/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type lib --emit=dep-info,metadata,link -C opt-level=3 -C embed-bitcode=no --cfg 'feature="default"' --cfg 'feature="extension-module"' -C metadata=2b02d3cc6934fdd6 -C extra-filename=-2b02d3cc6934fdd6 --out-dir /tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps -L dependency=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps --extern inventory=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps/libinventory-701eefaf91ecce0c.rmeta --extern libc=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps/liblibc-9e1e5be5fbec308b.rmeta --extern mashup=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps/libmashup-a1fe0a2bd5505ba2.rmeta --extern num_traits=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps/libnum_traits-b9cd4cd2c6156acf.rmeta --extern pyo3cls=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps/libpyo3cls-98daaa7fb14b4973.so --extern spin=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps/libspin-638b2ded4481154c.rmeta --cap-lints allow --cfg Py_3_5 --cfg Py_3_6 --cfg Py_3_7 --cfg Py_3_8 --cfg Py_3_9 --cfg Py_3 --cfg 'py_sys_config="WITH_THREAD"'`
  error[E0520]: `methods` specializes an item from a parent `impl`, but that item is not marked `default`
     --> /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/pyo3-0.7.0/src/class/basic.rs:170:5
      |
  164 |   impl<T> PyObjectProtocolImpl for T {}
      |   ------------------------------------- parent `impl` is here
  ...
  170 | /     fn methods() -> Vec<PyMethodDef> {
  171 | |         let mut methods = Vec::new();
  172 | |
  173 | |         if let Some(def) = <Self as FormatProtocolImpl>::__format__() {
  ...   |
  182 | |         methods
  183 | |     }
      | |_____^ cannot specialize default item `methods`
      |
      = note: to specialize, `methods` in the parent `impl` must be marked `default`

  error[E0520]: `tp_as_object` specializes an item from a parent `impl`, but that item is not marked `default`
     --> /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/pyo3-0.7.0/src/class/basic.rs:184:5
      |
  164 |   impl<T> PyObjectProtocolImpl for T {}
      |   ------------------------------------- parent `impl` is here
  ...
  184 | /     fn tp_as_object(type_object: &mut ffi::PyTypeObject) {
  185 | |         type_object.tp_str = Self::tp_str();
  186 | |         type_object.tp_repr = Self::tp_repr();
  187 | |         type_object.tp_hash = Self::tp_hash();
  ...   |
  190 | |         type_object.tp_setattro = tp_setattro_impl::tp_setattro::<Self>();
  191 | |     }
      | |_____^ cannot specialize default item `tp_as_object`
      |
      = note: to specialize, `tp_as_object` in the parent `impl` must be marked `default`

  error[E0520]: `nb_bool_fn` specializes an item from a parent `impl`, but that item is not marked `default`
     --> /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/pyo3-0.7.0/src/class/basic.rs:192:5
      |
  164 |   impl<T> PyObjectProtocolImpl for T {}
      |   ------------------------------------- parent `impl` is here
  ...
  192 | /     fn nb_bool_fn() -> Option<ffi::inquiry> {
  193 | |         Self::nb_bool()
  194 | |     }
      | |_____^ cannot specialize default item `nb_bool_fn`
      |
      = note: to specialize, `nb_bool_fn` in the parent `impl` must be marked `default`

  error[E0520]: `tp_getattro` specializes an item from a parent `impl`, but that item is not marked `default`
     --> /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/pyo3-0.7.0/src/class/basic.rs:209:5
      |
  203 |   impl<'p, T> GetAttrProtocolImpl for T where T: PyObjectProtocol<'p> {}
      |   ---------------------------------------------------------------------- parent `impl` is here
  ...
  209 | /     fn tp_getattro() -> Option<ffi::binaryfunc> {
  210 | |         py_binary_func!(
  211 | |             PyObjectGetAttrProtocol,
  212 | |             T::__getattr__,
  ...   |
  215 | |         )
  216 | |     }
      | |_____^ cannot specialize default item `tp_getattro`
      |
      = note: to specialize, `tp_getattro` in the parent `impl` must be marked `default`

  error[E0520]: `tp_str` specializes an item from a parent `impl`, but that item is not marked `default`
     --> /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/pyo3-0.7.0/src/class/basic.rs:313:5
      |
  308 |   impl<'p, T> StrProtocolImpl for T where T: PyObjectProtocol<'p> {}
      |   ------------------------------------------------------------------ parent `impl` is here
  ...
  313 | /     fn tp_str() -> Option<ffi::unaryfunc> {
  314 | |         py_unary_func!(
  315 | |             PyObjectStrProtocol,
  316 | |             T::__str__,
  ...   |
  319 | |         )
  320 | |     }
      | |_____^ cannot specialize default item `tp_str`
      |
      = note: to specialize, `tp_str` in the parent `impl` must be marked `default`

  error[E0520]: `tp_repr` specializes an item from a parent `impl`, but that item is not marked `default`
     --> /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/pyo3-0.7.0/src/class/basic.rs:333:5
      |
  328 |   impl<'p, T> ReprProtocolImpl for T where T: PyObjectProtocol<'p> {}
      |   ------------------------------------------------------------------- parent `impl` is here
  ...
  333 | /     fn tp_repr() -> Option<ffi::unaryfunc> {
  334 | |         py_unary_func!(
  335 | |             PyObjectReprProtocol,
  336 | |             T::__repr__,
  ...   |
  339 | |         )
  340 | |     }
      | |_____^ cannot specialize default item `tp_repr`
      |
      = note: to specialize, `tp_repr` in the parent `impl` must be marked `default`

  error[E0520]: `tp_hash` specializes an item from a parent `impl`, but that item is not marked `default`
     --> /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/pyo3-0.7.0/src/class/basic.rs:377:5
      |
  372 |   impl<'p, T> HashProtocolImpl for T where T: PyObjectProtocol<'p> {}
      |   ------------------------------------------------------------------- parent `impl` is here
  ...
  377 | /     fn tp_hash() -> Option<ffi::hashfunc> {
  378 | |         py_unary_func!(
  379 | |             PyObjectHashProtocol,
  380 | |             T::__hash__,
  ...   |
  384 | |         )
  385 | |     }
      | |_____^ cannot specialize default item `tp_hash`
      |
      = note: to specialize, `tp_hash` in the parent `impl` must be marked `default`

  error[E0520]: `nb_bool` specializes an item from a parent `impl`, but that item is not marked `default`
     --> /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/pyo3-0.7.0/src/class/basic.rs:398:5
      |
  393 |   impl<'p, T> BoolProtocolImpl for T where T: PyObjectProtocol<'p> {}
      |   ------------------------------------------------------------------- parent `impl` is here
  ...
  398 | /     fn nb_bool() -> Option<ffi::inquiry> {
  399 | |         py_unary_func!(
  400 | |             PyObjectBoolProtocol,
  401 | |             T::__bool__,
  ...   |
  405 | |         )
  406 | |     }
      | |_____^ cannot specialize default item `nb_bool`
      |
      = note: to specialize, `nb_bool` in the parent `impl` must be marked `default`

  error[E0520]: `tp_richcompare` specializes an item from a parent `impl`, but that item is not marked `default`
     --> /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/pyo3-0.7.0/src/class/basic.rs:419:5
      |
  414 |   impl<'p, T> RichcmpProtocolImpl for T where T: PyObjectProtocol<'p> {}
      |   ---------------------------------------------------------------------- parent `impl` is here
  ...
  419 | /     fn tp_richcompare() -> Option<ffi::richcmpfunc> {
  420 | |         unsafe extern "C" fn wrap<T>(
  421 | |             slf: *mut ffi::PyObject,
  422 | |             arg: *mut ffi::PyObject,
  ...   |
  448 | |         Some(wrap::<T>)
  449 | |     }
      | |_____^ cannot specialize default item `tp_richcompare`
      |
      = note: to specialize, `tp_richcompare` in the parent `impl` must be marked `default`

  error[E0520]: `set_attr` specializes an item from a parent `impl`, but that item is not marked `default`
     --> /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/pyo3-0.7.0/src/class/basic.rs:257:9
      |
  251 |       impl<'p, T: PyObjectProtocol<'p>> SetAttr for T {}
      |       -------------------------------------------------- parent `impl` is here
  ...
  257 | /         fn set_attr() -> Option<ffi::setattrofunc> {
  258 | |             py_func_set!(PyObjectSetAttrProtocol, T, __setattr__)
  259 | |         }
      | |_________^ cannot specialize default item `set_attr`
      |
      = note: to specialize, `set_attr` in the parent `impl` must be marked `default`

  error[E0520]: `del_attr` specializes an item from a parent `impl`, but that item is not marked `default`
     --> /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/pyo3-0.7.0/src/class/basic.rs:274:9
      |
  268 |       impl<'p, T> DelAttr for T where T: PyObjectProtocol<'p> {}
      |       ---------------------------------------------------------- parent `impl` is here
  ...
  274 | /         fn del_attr() -> Option<ffi::setattrofunc> {
  275 | |             py_func_del!(PyObjectDelAttrProtocol, T, __delattr__)
  276 | |         }
      | |_________^ cannot specialize default item `del_attr`
      |
      = note: to specialize, `del_attr` in the parent `impl` must be marked `default`

  error[E0520]: `set_del_attr` specializes an item from a parent `impl`, but that item is not marked `default`
     --> /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/pyo3-0.7.0/src/class/basic.rs:291:9
      |
  285 |       impl<'p, T> SetDelAttr for T where T: PyObjectProtocol<'p> {}
      |       ------------------------------------------------------------- parent `impl` is here
  ...
  291 | /         fn set_del_attr() -> Option<ffi::setattrofunc> {
  292 | |             py_func_set_del!(
  293 | |                 PyObjectSetAttrProtocol,
  294 | |                 PyObjectDelAttrProtocol,
  ...   |
  298 | |             )
  299 | |         }
      | |_________^ cannot specialize default item `set_del_attr`
      |
      = note: to specialize, `set_del_attr` in the parent `impl` must be marked `default`

  error[E0520]: `tp_as_buffer` specializes an item from a parent `impl`, but that item is not marked `default`
    --> /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/pyo3-0.7.0/src/class/buffer.rs:57:5
     |
  49 |   impl<T> PyBufferProtocolImpl for T {}
     |   ------------------------------------- parent `impl` is here
  ...
  57 | /     fn tp_as_buffer() -> Option<ffi::PyBufferProcs> {
  58 | |         Some(ffi::PyBufferProcs {
  59 | |             bf_getbuffer: Self::cb_bf_getbuffer(),
  60 | |             bf_releasebuffer: None,
  61 | |             ..ffi::PyBufferProcs_INIT
  62 | |         })
  63 | |     }
     | |_____^ cannot specialize default item `tp_as_buffer`
     |
     = note: to specialize, `tp_as_buffer` in the parent `impl` must be marked `default`

  error[E0520]: `cb_bf_getbuffer` specializes an item from a parent `impl`, but that item is not marked `default`
    --> /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/pyo3-0.7.0/src/class/buffer.rs:79:5
     |
  72 |   impl<'p, T> PyBufferGetBufferProtocolImpl for T where T: PyBufferProtocol<'p> {}
     |   -------------------------------------------------------------------------------- parent `impl` is here
  ...
  79 | /     fn cb_bf_getbuffer() -> Option<ffi::getbufferproc> {
  80 | |         unsafe extern "C" fn wrap<T>(
  81 | |             slf: *mut ffi::PyObject,
  82 | |             arg1: *mut ffi::Py_buffer,
  ...  |
  95 | |         Some(wrap::<T>)
  96 | |     }
     | |_____^ cannot specialize default item `cb_bf_getbuffer`
     |
     = note: to specialize, `cb_bf_getbuffer` in the parent `impl` must be marked `default`

  error[E0520]: `methods` specializes an item from a parent `impl`, but that item is not marked `default`
    --> /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/pyo3-0.7.0/src/class/context.rs:61:5
     |
  54 |   impl<T> PyContextProtocolImpl for T {}
     |   -------------------------------------- parent `impl` is here
  ...
  61 | /     fn methods() -> Vec<PyMethodDef> {
  62 | |         let mut methods = Vec::new();
  63 | |
  64 | |         if let Some(def) = <Self as PyContextEnterProtocolImpl>::__enter__() {
  ...  |
  71 | |         methods
  72 | |     }
     | |_____^ cannot specialize default item `methods`
     |
     = note: to specialize, `methods` in the parent `impl` must be marked `default`

  error[E0520]: `tp_descr_get` specializes an item from a parent `impl`, but that item is not marked `default`
    --> /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/pyo3-0.7.0/src/class/descr.rs:83:5
     |
  77 |   impl<'p, T> PyDescrGetProtocolImpl for T where T: PyDescrProtocol<'p> {}
     |   ------------------------------------------------------------------------ parent `impl` is here
  ...
  83 | /     fn tp_descr_get() -> Option<ffi::descrgetfunc> {
  84 | |         py_ternary_func!(
  85 | |             PyDescrGetProtocol,
  86 | |             T::__get__,
  ...  |
  89 | |         )
  90 | |     }
     | |_____^ cannot specialize default item `tp_descr_get`
     |
     = note: to specialize, `tp_descr_get` in the parent `impl` must be marked `default`

  error[E0520]: `tp_descr_set` specializes an item from a parent `impl`, but that item is not marked `default`
     --> /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/pyo3-0.7.0/src/class/descr.rs:103:5
      |
  98  |   impl<'p, T> PyDescrSetProtocolImpl for T where T: PyDescrProtocol<'p> {}
      |   ------------------------------------------------------------------------ parent `impl` is here
  ...
  103 | /     fn tp_descr_set() -> Option<ffi::descrsetfunc> {
  104 | |         py_ternary_func!(
  105 | |             PyDescrSetProtocol,
  106 | |             T::__set__,
  ...   |
  110 | |         )
  111 | |     }
      | |_____^ cannot specialize default item `tp_descr_set`
      |
      = note: to specialize, `tp_descr_set` in the parent `impl` must be marked `default`

  error[E0520]: `methods` specializes an item from a parent `impl`, but that item is not marked `default`
     --> /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/pyo3-0.7.0/src/class/descr.rs:142:5
      |
  136 |   impl<T> PyDescrProtocolImpl for T {}
      |   ------------------------------------ parent `impl` is here
  ...
  142 | /     fn methods() -> Vec<PyMethodDef> {
  143 | |         Vec::new()
  144 | |     }
      | |_____^ cannot specialize default item `methods`
      |
      = note: to specialize, `methods` in the parent `impl` must be marked `default`

  error[E0520]: `tp_as_descr` specializes an item from a parent `impl`, but that item is not marked `default`
     --> /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/pyo3-0.7.0/src/class/descr.rs:145:5
      |
  136 |   impl<T> PyDescrProtocolImpl for T {}
      |   ------------------------------------ parent `impl` is here
  ...
  145 | /     fn tp_as_descr(type_object: &mut ffi::PyTypeObject) {
  146 | |         type_object.tp_descr_get = Self::tp_descr_get();
  147 | |         type_object.tp_descr_set = Self::tp_descr_set();
  148 | |     }
      | |_____^ cannot specialize default item `tp_as_descr`
      |
      = note: to specialize, `tp_as_descr` in the parent `impl` must be marked `default`

  error[E0520]: `update_type_object` specializes an item from a parent `impl`, but that item is not marked `default`
    --> /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/pyo3-0.7.0/src/class/gc.rs:41:5
     |
  35 |   impl<'p, T> PyGCProtocolImpl for T {}
     |   ------------------------------------- parent `impl` is here
  ...
  41 | /     fn update_type_object(type_object: &mut ffi::PyTypeObject) {
  42 | |         type_object.tp_traverse = Self::tp_traverse();
  43 | |         type_object.tp_clear = Self::tp_clear();
  44 | |     }
     | |_____^ cannot specialize default item `update_type_object`
     |
     = note: to specialize, `update_type_object` in the parent `impl` must be marked `default`

  error[E0520]: `tp_traverse` specializes an item from a parent `impl`, but that item is not marked `default`
     --> /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/pyo3-0.7.0/src/class/gc.rs:85:5
      |
  77  |   impl<'p, T> PyGCTraverseProtocolImpl for T where T: PyGCProtocol<'p> {}
      |   ----------------------------------------------------------------------- parent `impl` is here
  ...
  85  | /     fn tp_traverse() -> Option<ffi::traverseproc> {
  86  | |         unsafe extern "C" fn tp_traverse<T>(
  87  | |             slf: *mut ffi::PyObject,
  88  | |             visit: ffi::visitproc,
  ...   |
  109 | |         Some(tp_traverse::<T>)
  110 | |     }
      | |_____^ cannot specialize default item `tp_traverse`
      |
      = note: to specialize, `tp_traverse` in the parent `impl` must be marked `default`

  error[E0520]: `tp_clear` specializes an item from a parent `impl`, but that item is not marked `default`
     --> /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/pyo3-0.7.0/src/class/gc.rs:126:5
      |
  119 |   impl<'p, T> PyGCClearProtocolImpl for T where T: PyGCProtocol<'p> {}
      |   -------------------------------------------------------------------- parent `impl` is here
  ...
  126 | /     fn tp_clear() -> Option<ffi::inquiry> {
  127 | |         unsafe extern "C" fn tp_clear<T>(slf: *mut ffi::PyObject) -> c_int
  128 | |         where
  129 | |             T: for<'p> PyGCClearProtocol<'p>,
  ...   |
  138 | |         Some(tp_clear::<T>)
  139 | |     }
      | |_____^ cannot specialize default item `tp_clear`
      |
      = note: to specialize, `tp_clear` in the parent `impl` must be marked `default`

  error[E0520]: `tp_as_iter` specializes an item from a parent `impl`, but that item is not marked `default`
    --> /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/pyo3-0.7.0/src/class/iter.rs:58:5
     |
  51 |   impl<T> PyIterProtocolImpl for T {}
     |   ----------------------------------- parent `impl` is here
  ...
  58 | /     fn tp_as_iter(typeob: &mut ffi::PyTypeObject) {
  59 | |         typeob.tp_iter = Self::tp_iter();
  60 | |         typeob.tp_iternext = Self::tp_iternext();
  61 | |     }
     | |_____^ cannot specialize default item `tp_as_iter`
     |
     = note: to specialize, `tp_as_iter` in the parent `impl` must be marked `default`

  error[E0520]: `tp_iter` specializes an item from a parent `impl`, but that item is not marked `default`
    --> /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/pyo3-0.7.0/src/class/iter.rs:77:5
     |
  70 |   impl<'p, T> PyIterIterProtocolImpl for T where T: PyIterProtocol<'p> {}
     |   ----------------------------------------------------------------------- parent `impl` is here
  ...
  77 | /     fn tp_iter() -> Option<ffi::getiterfunc> {
  78 | |         py_unary_pyref_func!(
  79 | |             PyIterIterProtocol,
  80 | |             T::__iter__,
  ...  |
  83 | |         )
  84 | |     }
     | |_____^ cannot specialize default item `tp_iter`
     |
     = note: to specialize, `tp_iter` in the parent `impl` must be marked `default`

  error[E0520]: `tp_iternext` specializes an item from a parent `impl`, but that item is not marked `default`
     --> /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/pyo3-0.7.0/src/class/iter.rs:100:5
      |
  93  |   impl<'p, T> PyIterNextProtocolImpl for T where T: PyIterProtocol<'p> {}
      |   ----------------------------------------------------------------------- parent `impl` is here
  ...
  100 | /     fn tp_iternext() -> Option<ffi::iternextfunc> {
  101 | |         py_unary_pyref_func!(
  102 | |             PyIterNextProtocol,
  103 | |             T::__next__,
  ...   |
  106 | |         )
  107 | |     }
      | |_____^ cannot specialize default item `tp_iternext`
      |
      = note: to specialize, `tp_iternext` in the parent `impl` must be marked `default`

  error[E0520]: `tp_as_mapping` specializes an item from a parent `impl`, but that item is not marked `default`
     --> /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/pyo3-0.7.0/src/class/mapping.rs:124:5
      |
  117 |   impl<T> PyMappingProtocolImpl for T {}
      |   -------------------------------------- parent `impl` is here
  ...
  124 | /     fn tp_as_mapping() -> Option<ffi::PyMappingMethods> {
  125 | |         let f = if let Some(df) = Self::mp_del_subscript() {
  126 | |             Some(df)
  127 | |         } else {
  ...   |
  135 | |         })
  136 | |     }
      | |_____^ cannot specialize default item `tp_as_mapping`
      |
      = note: to specialize, `tp_as_mapping` in the parent `impl` must be marked `default`

  error[E0520]: `methods` specializes an item from a parent `impl`, but that item is not marked `default`
     --> /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/pyo3-0.7.0/src/class/mapping.rs:139:5
      |
  117 |   impl<T> PyMappingProtocolImpl for T {}
      |   -------------------------------------- parent `impl` is here
  ...
  139 | /     fn methods() -> Vec<PyMethodDef> {
  140 | |         let mut methods = Vec::new();
  141 | |
  142 | |         if let Some(def) = <Self as PyMappingIterProtocolImpl>::__iter__() {
  ...   |
  152 | |         methods
  153 | |     }
      | |_____^ cannot specialize default item `methods`
      |
      = note: to specialize, `methods` in the parent `impl` must be marked `default`

  error[E0520]: `mp_length` specializes an item from a parent `impl`, but that item is not marked `default`
     --> /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/pyo3-0.7.0/src/class/mapping.rs:169:5
      |
  162 |   impl<'p, T> PyMappingLenProtocolImpl for T where T: PyMappingProtocol<'p> {}
      |   ---------------------------------------------------------------------------- parent `impl` is here
  ...
  169 | /     fn mp_length() -> Option<ffi::lenfunc> {
  170 | |         py_len_func!(PyMappingLenProtocol, T::__len__, LenResultConverter)
  171 | |     }
      | |_____^ cannot specialize default item `mp_length`
      |
      = note: to specialize, `mp_length` in the parent `impl` must be marked `default`

  error[E0520]: `mp_subscript` specializes an item from a parent `impl`, but that item is not marked `default`
     --> /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/pyo3-0.7.0/src/class/mapping.rs:187:5
      |
  180 |   impl<'p, T> PyMappingGetItemProtocolImpl for T where T: PyMappingProtocol<'p> {}
      |   -------------------------------------------------------------------------------- parent `impl` is here
  ...
  187 | /     fn mp_subscript() -> Option<ffi::binaryfunc> {
  188 | |         py_binary_func!(
  189 | |             PyMappingGetItemProtocol,
  190 | |             T::__getitem__,
  ...   |
  193 | |         )
  194 | |     }
      | |_____^ cannot specialize default item `mp_subscript`
      |
      = note: to specialize, `mp_subscript` in the parent `impl` must be marked `default`

  error[E0520]: `mp_ass_subscript` specializes an item from a parent `impl`, but that item is not marked `default`
     --> /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/pyo3-0.7.0/src/class/mapping.rs:210:5
      |
  203 |   impl<'p, T> PyMappingSetItemProtocolImpl for T where T: PyMappingProtocol<'p> {}
      |   -------------------------------------------------------------------------------- parent `impl` is here
  ...
  210 | /     fn mp_ass_subscript() -> Option<ffi::objobjargproc> {
  211 | |         py_func_set!(PyMappingSetItemProtocol, T, __setitem__)
  212 | |     }
      | |_____^ cannot specialize default item `mp_ass_subscript`
      |
      = note: to specialize, `mp_ass_subscript` in the parent `impl` must be marked `default`

  error[E0520]: `det_set_dispatch` specializes an item from a parent `impl`, but that item is not marked `default`
     --> /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/pyo3-0.7.0/src/class/mapping.rs:238:5
      |
  232 |   impl<T> DelSetItemDispatch for T where T: Sized + for<'p> PyMappingDelItemProtocol<'p> {}
      |   ----------------------------------------------------------------------------------------- parent `impl` is here
  ...
  238 | /     fn det_set_dispatch() -> Option<ffi::objobjargproc> {
  239 | |         py_func_set_del!(
  240 | |             PyMappingSetItemProtocol,
  241 | |             PyMappingDelItemProtocol,
  ...   |
  245 | |         )
  246 | |     }
      | |_____^ cannot specialize default item `det_set_dispatch`
      |
      = note: to specialize, `det_set_dispatch` in the parent `impl` must be marked `default`

  error[E0520]: `mp_del_subscript` specializes an item from a parent `impl`, but that item is not marked `default`
     --> /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/pyo3-0.7.0/src/class/mapping.rs:253:5
      |
  223 |   impl<'p, T> DeplItemDipatch for T where T: PyMappingProtocol<'p> {}
      |   ------------------------------------------------------------------- parent `impl` is here
  ...
  253 | /     fn mp_del_subscript() -> Option<ffi::objobjargproc> {
  254 | |         <T as DelSetItemDispatch>::det_set_dispatch()
  255 | |     }
      | |_____^ cannot specialize default item `mp_del_subscript`
      |
      = note: to specialize, `mp_del_subscript` in the parent `impl` must be marked `default`

  error[E0520]: `tp_as_number` specializes an item from a parent `impl`, but that item is not marked `default`
     --> /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/pyo3-0.7.0/src/class/number.rs:647:5
      |
  641 |   impl<'p, T> PyNumberProtocolImpl for T {}
      |   ----------------------------------------- parent `impl` is here
  ...
  647 | /     fn tp_as_number() -> Option<ffi::PyNumberMethods> {
  648 | |         Some(ffi::PyNumberMethods {
  649 | |             nb_add: Self::nb_add(),
  650 | |             nb_subtract: Self::nb_subtract(),
  ...   |
  685 | |         })
  686 | |     }
      | |_____^ cannot specialize default item `tp_as_number`
      |
      = note: to specialize, `tp_as_number` in the parent `impl` must be marked `default`

  error[E0520]: `methods` specializes an item from a parent `impl`, but that item is not marked `default`
     --> /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/pyo3-0.7.0/src/class/number.rs:689:5
      |
  641 |   impl<'p, T> PyNumberProtocolImpl for T {}
      |   ----------------------------------------- parent `impl` is here
  ...
  689 | /     fn methods() -> Vec<PyMethodDef> {
  690 | |         let mut methods = Vec::new();
  691 | |
  692 | |         if let Some(def) = <Self as PyNumberRAddProtocolImpl>::__radd__() {
  ...   |
  741 | |         methods
  742 | |     }
      | |_____^ cannot specialize default item `methods`
      |
      = note: to specialize, `methods` in the parent `impl` must be marked `default`

  error[E0520]: `nb_add` specializes an item from a parent `impl`, but that item is not marked `default`
     --> /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/pyo3-0.7.0/src/class/number.rs:757:5
      |
  751 |   impl<'p, T> PyNumberAddProtocolImpl for T where T: PyNumberProtocol<'p> {}
      |   -------------------------------------------------------------------------- parent `impl` is here
  ...
  757 | /     fn nb_add() -> Option<ffi::binaryfunc> {
  758 | |         py_binary_num_func!(
  759 | |             PyNumberAddProtocol,
  760 | |             T::__add__,
  ...   |
  763 | |         )
  764 | |     }
      | |_____^ cannot specialize default item `nb_add`
      |
      = note: to specialize, `nb_add` in the parent `impl` must be marked `default`

  error[E0520]: `nb_subtract` specializes an item from a parent `impl`, but that item is not marked `default`
     --> /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/pyo3-0.7.0/src/class/number.rs:779:5
      |
  773 |   impl<'p, T> PyNumberSubProtocolImpl for T where T: PyNumberProtocol<'p> {}
      |   -------------------------------------------------------------------------- parent `impl` is here
  ...
  779 | /     fn nb_subtract() -> Option<ffi::binaryfunc> {
  780 | |         py_binary_num_func!(
  781 | |             PyNumberSubProtocol,
  782 | |             T::__sub__,
  ...   |
  785 | |         )
  786 | |     }
      | |_____^ cannot specialize default item `nb_subtract`
      |
      = note: to specialize, `nb_subtract` in the parent `impl` must be marked `default`

  error[E0520]: `nb_multiply` specializes an item from a parent `impl`, but that item is not marked `default`
     --> /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/pyo3-0.7.0/src/class/number.rs:801:5
      |
  795 |   impl<'p, T> PyNumberMulProtocolImpl for T where T: PyNumberProtocol<'p> {}
      |   -------------------------------------------------------------------------- parent `impl` is here
  ...
  801 | /     fn nb_multiply() -> Option<ffi::binaryfunc> {
  802 | |         py_binary_num_func!(
  803 | |             PyNumberMulProtocol,
  804 | |             T::__mul__,
  ...   |
  807 | |         )
  808 | |     }
      | |_____^ cannot specialize default item `nb_multiply`
      |
      = note: to specialize, `nb_multiply` in the parent `impl` must be marked `default`

  error[E0520]: `nb_matrix_multiply` specializes an item from a parent `impl`, but that item is not marked `default`
     --> /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/pyo3-0.7.0/src/class/number.rs:823:5
      |
  817 |   impl<'p, T> PyNumberMatmulProtocolImpl for T where T: PyNumberProtocol<'p> {}
      |   ----------------------------------------------------------------------------- parent `impl` is here
  ...
  823 | /     fn nb_matrix_multiply() -> Option<ffi::binaryfunc> {
  824 | |         py_binary_num_func!(
  825 | |             PyNumberMatmulProtocol,
  826 | |             T::__matmul__,
  ...   |
  829 | |         )
  830 | |     }
      | |_____^ cannot specialize default item `nb_matrix_multiply`
      |
      = note: to specialize, `nb_matrix_multiply` in the parent `impl` must be marked `default`

  error[E0520]: `nb_true_divide` specializes an item from a parent `impl`, but that item is not marked `default`
     --> /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/pyo3-0.7.0/src/class/number.rs:845:5
      |
  839 |   impl<'p, T> PyNumberTruedivProtocolImpl for T where T: PyNumberProtocol<'p> {}
      |   ------------------------------------------------------------------------------ parent `impl` is here
  ...
  845 | /     fn nb_true_divide() -> Option<ffi::binaryfunc> {
  846 | |         py_binary_num_func!(
  847 | |             PyNumberTruedivProtocol,
  848 | |             T::__truediv__,
  ...   |
  851 | |         )
  852 | |     }
      | |_____^ cannot specialize default item `nb_true_divide`
      |
      = note: to specialize, `nb_true_divide` in the parent `impl` must be marked `default`

  error[E0520]: `nb_floor_divide` specializes an item from a parent `impl`, but that item is not marked `default`
     --> /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/pyo3-0.7.0/src/class/number.rs:867:5
      |
  861 |   impl<'p, T> PyNumberFloordivProtocolImpl for T where T: PyNumberProtocol<'p> {}
      |   ------------------------------------------------------------------------------- parent `impl` is here
  ...
  867 | /     fn nb_floor_divide() -> Option<ffi::binaryfunc> {
  868 | |         py_binary_num_func!(
  869 | |             PyNumberFloordivProtocol,
  870 | |             T::__floordiv__,
  ...   |
  873 | |         )
  874 | |     }
      | |_____^ cannot specialize default item `nb_floor_divide`
      |
      = note: to specialize, `nb_floor_divide` in the parent `impl` must be marked `default`

  error[E0520]: `nb_remainder` specializes an item from a parent `impl`, but that item is not marked `default`
     --> /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/pyo3-0.7.0/src/class/number.rs:889:5
      |
  883 |   impl<'p, T> PyNumberModProtocolImpl for T where T: PyNumberProtocol<'p> {}
      |   -------------------------------------------------------------------------- parent `impl` is here
  ...
  889 | /     fn nb_remainder() -> Option<ffi::binaryfunc> {
  890 | |         py_binary_num_func!(
  891 | |             PyNumberModProtocol,
  892 | |             T::__mod__,
  ...   |
  895 | |         )
  896 | |     }
      | |_____^ cannot specialize default item `nb_remainder`
      |
      = note: to specialize, `nb_remainder` in the parent `impl` must be marked `default`

  error[E0520]: `nb_divmod` specializes an item from a parent `impl`, but that item is not marked `default`
     --> /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/pyo3-0.7.0/src/class/number.rs:911:5
      |
  905 |   impl<'p, T> PyNumberDivmodProtocolImpl for T where T: PyNumberProtocol<'p> {}
      |   ----------------------------------------------------------------------------- parent `impl` is here
  ...
  911 | /     fn nb_divmod() -> Option<ffi::binaryfunc> {
  912 | |         py_binary_num_func!(
  913 | |             PyNumberDivmodProtocol,
  914 | |             T::__divmod__,
  ...   |
  917 | |         )
  918 | |     }
      | |_____^ cannot specialize default item `nb_divmod`
      |
      = note: to specialize, `nb_divmod` in the parent `impl` must be marked `default`

  error[E0520]: `nb_power` specializes an item from a parent `impl`, but that item is not marked `default`
     --> /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/pyo3-0.7.0/src/class/number.rs:933:5
      |
  927 |   impl<'p, T> PyNumberPowProtocolImpl for T where T: PyNumberProtocol<'p> {}
      |   -------------------------------------------------------------------------- parent `impl` is here
  ...
  933 | /     fn nb_power() -> Option<ffi::ternaryfunc> {
  934 | |         py_ternary_num_func!(
  935 | |             PyNumberPowProtocol,
  936 | |             T::__pow__,
  ...   |
  939 | |         )
  940 | |     }
      | |_____^ cannot specialize default item `nb_power`
      |
      = note: to specialize, `nb_power` in the parent `impl` must be marked `default`

  error[E0520]: `nb_lshift` specializes an item from a parent `impl`, but that item is not marked `default`
     --> /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/pyo3-0.7.0/src/class/number.rs:955:5
      |
  949 |   impl<'p, T> PyNumberLShiftProtocolImpl for T where T: PyNumberProtocol<'p> {}
      |   ----------------------------------------------------------------------------- parent `impl` is here
  ...
  955 | /     fn nb_lshift() -> Option<ffi::binaryfunc> {
  956 | |         py_binary_num_func!(
  957 | |             PyNumberLShiftProtocol,
  958 | |             T::__lshift__,
  ...   |
  961 | |         )
  962 | |     }
      | |_____^ cannot specialize default item `nb_lshift`
      |
      = note: to specialize, `nb_lshift` in the parent `impl` must be marked `default`

  error[E0520]: `nb_rshift` specializes an item from a parent `impl`, but that item is not marked `default`
     --> /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/pyo3-0.7.0/src/class/number.rs:977:5
      |
  971 |   impl<'p, T> PyNumberRShiftProtocolImpl for T where T: PyNumberProtocol<'p> {}
      |   ----------------------------------------------------------------------------- parent `impl` is here
  ...
  977 | /     fn nb_rshift() -> Option<ffi::binaryfunc> {
  978 | |         py_binary_num_func!(
  979 | |             PyNumberRShiftProtocol,
  980 | |             T::__rshift__,
  ...   |
  983 | |         )
  984 | |     }
      | |_____^ cannot specialize default item `nb_rshift`
      |
      = note: to specialize, `nb_rshift` in the parent `impl` must be marked `default`

  error[E0520]: `nb_and` specializes an item from a parent `impl`, but that item is not marked `default`
      --> /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/pyo3-0.7.0/src/class/number.rs:999:5
       |
  993  |   impl<'p, T> PyNumberAndProtocolImpl for T where T: PyNumberProtocol<'p> {}
       |   -------------------------------------------------------------------------- parent `impl` is here
  ...
  999  | /     fn nb_and() -> Option<ffi::binaryfunc> {
  1000 | |         py_binary_num_func!(
  1001 | |             PyNumberAndProtocol,
  1002 | |             T::__and__,
  ...    |
  1005 | |         )
  1006 | |     }
       | |_____^ cannot specialize default item `nb_and`
       |
       = note: to specialize, `nb_and` in the parent `impl` must be marked `default`

  error[E0520]: `nb_xor` specializes an item from a parent `impl`, but that item is not marked `default`
      --> /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/pyo3-0.7.0/src/class/number.rs:1021:5
       |
  1015 |   impl<'p, T> PyNumberXorProtocolImpl for T where T: PyNumberProtocol<'p> {}
       |   -------------------------------------------------------------------------- parent `impl` is here
  ...
  1021 | /     fn nb_xor() -> Option<ffi::binaryfunc> {
  1022 | |         py_binary_num_func!(
  1023 | |             PyNumberXorProtocol,
  1024 | |             T::__xor__,
  ...    |
  1027 | |         )
  1028 | |     }
       | |_____^ cannot specialize default item `nb_xor`
       |
       = note: to specialize, `nb_xor` in the parent `impl` must be marked `default`

  error[E0520]: `nb_or` specializes an item from a parent `impl`, but that item is not marked `default`
      --> /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/pyo3-0.7.0/src/class/number.rs:1043:5
       |
  1037 |   impl<'p, T> PyNumberOrProtocolImpl for T where T: PyNumberProtocol<'p> {}
       |   ------------------------------------------------------------------------- parent `impl` is here
  ...
  1043 | /     fn nb_or() -> Option<ffi::binaryfunc> {
  1044 | |         py_binary_num_func!(
  1045 | |             PyNumberOrProtocol,
  1046 | |             T::__or__,
  ...    |
  1049 | |         )
  1050 | |     }
       | |_____^ cannot specialize default item `nb_or`
       |
       = note: to specialize, `nb_or` in the parent `impl` must be marked `default`

  error[E0520]: `nb_inplace_add` specializes an item from a parent `impl`, but that item is not marked `default`
      --> /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/pyo3-0.7.0/src/class/number.rs:1065:5
       |
  1059 |   impl<'p, T> PyNumberIAddProtocolImpl for T where T: PyNumberProtocol<'p> {}
       |   --------------------------------------------------------------------------- parent `impl` is here
  ...
  1065 | /     fn nb_inplace_add() -> Option<ffi::binaryfunc> {
  1066 | |         py_binary_self_func!(PyNumberIAddProtocol, T::__iadd__)
  1067 | |     }
       | |_____^ cannot specialize default item `nb_inplace_add`
       |
       = note: to specialize, `nb_inplace_add` in the parent `impl` must be marked `default`

  error[E0520]: `nb_inplace_subtract` specializes an item from a parent `impl`, but that item is not marked `default`
      --> /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/pyo3-0.7.0/src/class/number.rs:1082:5
       |
  1076 |   impl<'p, T> PyNumberISubProtocolImpl for T where T: PyNumberProtocol<'p> {}
       |   --------------------------------------------------------------------------- parent `impl` is here
  ...
  1082 | /     fn nb_inplace_subtract() -> Option<ffi::binaryfunc> {
  1083 | |         py_binary_self_func!(PyNumberISubProtocol, T::__isub__)
  1084 | |     }
       | |_____^ cannot specialize default item `nb_inplace_subtract`
       |
       = note: to specialize, `nb_inplace_subtract` in the parent `impl` must be marked `default`

  error[E0520]: `nb_inplace_multiply` specializes an item from a parent `impl`, but that item is not marked `default`
      --> /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/pyo3-0.7.0/src/class/number.rs:1099:5
       |
  1093 |   impl<'p, T> PyNumberIMulProtocolImpl for T where T: PyNumberProtocol<'p> {}
       |   --------------------------------------------------------------------------- parent `impl` is here
  ...
  1099 | /     fn nb_inplace_multiply() -> Option<ffi::binaryfunc> {
  1100 | |         py_binary_self_func!(PyNumberIMulProtocol, T::__imul__)
  1101 | |     }
       | |_____^ cannot specialize default item `nb_inplace_multiply`
       |
       = note: to specialize, `nb_inplace_multiply` in the parent `impl` must be marked `default`

  error[E0520]: `nb_inplace_matrix_multiply` specializes an item from a parent `impl`, but that item is not marked `default`
      --> /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/pyo3-0.7.0/src/class/number.rs:1116:5
       |
  1110 |   impl<'p, T> PyNumberIMatmulProtocolImpl for T where T: PyNumberProtocol<'p> {}
       |   ------------------------------------------------------------------------------ parent `impl` is here
  ...
  1116 | /     fn nb_inplace_matrix_multiply() -> Option<ffi::binaryfunc> {
  1117 | |         py_binary_self_func!(PyNumberIMatmulProtocol, T::__imatmul__)
  1118 | |     }
       | |_____^ cannot specialize default item `nb_inplace_matrix_multiply`
       |
       = note: to specialize, `nb_inplace_matrix_multiply` in the parent `impl` must be marked `default`

  error[E0520]: `nb_inplace_true_divide` specializes an item from a parent `impl`, but that item is not marked `default`
      --> /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/pyo3-0.7.0/src/class/number.rs:1133:5
       |
  1127 |   impl<'p, T> PyNumberITruedivProtocolImpl for T where T: PyNumberProtocol<'p> {}
       |   ------------------------------------------------------------------------------- parent `impl` is here
  ...
  1133 | /     fn nb_inplace_true_divide() -> Option<ffi::binaryfunc> {
  1134 | |         py_binary_self_func!(PyNumberITruedivProtocol, T::__itruediv__)
  1135 | |     }
       | |_____^ cannot specialize default item `nb_inplace_true_divide`
       |
       = note: to specialize, `nb_inplace_true_divide` in the parent `impl` must be marked `default`

  error[E0520]: `nb_inplace_floor_divide` specializes an item from a parent `impl`, but that item is not marked `default`
      --> /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/pyo3-0.7.0/src/class/number.rs:1150:5
       |
  1144 |   impl<'p, T> PyNumberIFloordivProtocolImpl for T where T: PyNumberProtocol<'p> {}
       |   -------------------------------------------------------------------------------- parent `impl` is here
  ...
  1150 | /     fn nb_inplace_floor_divide() -> Option<ffi::binaryfunc> {
  1151 | |         py_binary_self_func!(PyNumberIFloordivProtocol, T::__ifloordiv__)
  1152 | |     }
       | |_____^ cannot specialize default item `nb_inplace_floor_divide`
       |
       = note: to specialize, `nb_inplace_floor_divide` in the parent `impl` must be marked `default`

  error[E0520]: `nb_inplace_remainder` specializes an item from a parent `impl`, but that item is not marked `default`
      --> /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/pyo3-0.7.0/src/class/number.rs:1167:5
       |
  1161 |   impl<'p, T> PyNumberIModProtocolImpl for T where T: PyNumberProtocol<'p> {}
       |   --------------------------------------------------------------------------- parent `impl` is here
  ...
  1167 | /     fn nb_inplace_remainder() -> Option<ffi::binaryfunc> {
  1168 | |         py_binary_self_func!(PyNumberIModProtocol, T::__imod__)
  1169 | |     }
       | |_____^ cannot specialize default item `nb_inplace_remainder`
       |
       = note: to specialize, `nb_inplace_remainder` in the parent `impl` must be marked `default`

  error[E0520]: `nb_inplace_power` specializes an item from a parent `impl`, but that item is not marked `default`
      --> /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/pyo3-0.7.0/src/class/number.rs:1184:5
       |
  1178 |   impl<'p, T> PyNumberIPowProtocolImpl for T where T: PyNumberProtocol<'p> {}
       |   --------------------------------------------------------------------------- parent `impl` is here
  ...
  1184 | /     fn nb_inplace_power() -> Option<ffi::ternaryfunc> {
  1185 | |         py_ternary_self_func!(PyNumberIPowProtocol, T::__ipow__)
  1186 | |     }
       | |_____^ cannot specialize default item `nb_inplace_power`
       |
       = note: to specialize, `nb_inplace_power` in the parent `impl` must be marked `default`

  error[E0520]: `nb_inplace_lshift` specializes an item from a parent `impl`, but that item is not marked `default`
      --> /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/pyo3-0.7.0/src/class/number.rs:1201:5
       |
  1195 |   impl<'p, T> PyNumberILShiftProtocolImpl for T where T: PyNumberProtocol<'p> {}
       |   ------------------------------------------------------------------------------ parent `impl` is here
  ...
  1201 | /     fn nb_inplace_lshift() -> Option<ffi::binaryfunc> {
  1202 | |         py_binary_self_func!(PyNumberILShiftProtocol, T::__ilshift__)
  1203 | |     }
       | |_____^ cannot specialize default item `nb_inplace_lshift`
       |
       = note: to specialize, `nb_inplace_lshift` in the parent `impl` must be marked `default`

  error[E0520]: `nb_inplace_rshift` specializes an item from a parent `impl`, but that item is not marked `default`
      --> /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/pyo3-0.7.0/src/class/number.rs:1218:5
       |
  1212 |   impl<'p, T> PyNumberIRShiftProtocolImpl for T where T: PyNumberProtocol<'p> {}
       |   ------------------------------------------------------------------------------ parent `impl` is here
  ...
  1218 | /     fn nb_inplace_rshift() -> Option<ffi::binaryfunc> {
  1219 | |         py_binary_self_func!(PyNumberIRShiftProtocol, T::__irshift__)
  1220 | |     }
       | |_____^ cannot specialize default item `nb_inplace_rshift`
       |
       = note: to specialize, `nb_inplace_rshift` in the parent `impl` must be marked `default`

  error[E0520]: `nb_inplace_and` specializes an item from a parent `impl`, but that item is not marked `default`
      --> /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/pyo3-0.7.0/src/class/number.rs:1235:5
       |
  1229 |   impl<'p, T> PyNumberIAndProtocolImpl for T where T: PyNumberProtocol<'p> {}
       |   --------------------------------------------------------------------------- parent `impl` is here
  ...
  1235 | /     fn nb_inplace_and() -> Option<ffi::binaryfunc> {
  1236 | |         py_binary_self_func!(PyNumberIAndProtocol, T::__iand__)
  1237 | |     }
       | |_____^ cannot specialize default item `nb_inplace_and`
       |
       = note: to specialize, `nb_inplace_and` in the parent `impl` must be marked `default`

  error[E0520]: `nb_inplace_xor` specializes an item from a parent `impl`, but that item is not marked `default`
      --> /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/pyo3-0.7.0/src/class/number.rs:1252:5
       |
  1246 |   impl<'p, T> PyNumberIXorProtocolImpl for T where T: PyNumberProtocol<'p> {}
       |   --------------------------------------------------------------------------- parent `impl` is here
  ...
  1252 | /     fn nb_inplace_xor() -> Option<ffi::binaryfunc> {
  1253 | |         py_binary_self_func!(PyNumberIXorProtocol, T::__ixor__)
  1254 | |     }
       | |_____^ cannot specialize default item `nb_inplace_xor`
       |
       = note: to specialize, `nb_inplace_xor` in the parent `impl` must be marked `default`

  error[E0520]: `nb_inplace_or` specializes an item from a parent `impl`, but that item is not marked `default`
      --> /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/pyo3-0.7.0/src/class/number.rs:1269:5
       |
  1263 |   impl<'p, T> PyNumberIOrProtocolImpl for T where T: PyNumberProtocol<'p> {}
       |   -------------------------------------------------------------------------- parent `impl` is here
  ...
  1269 | /     fn nb_inplace_or() -> Option<ffi::binaryfunc> {
  1270 | |         py_binary_self_func!(PyNumberIOrProtocol, T::__ior__)
  1271 | |     }
       | |_____^ cannot specialize default item `nb_inplace_or`
       |
       = note: to specialize, `nb_inplace_or` in the parent `impl` must be marked `default`

  error[E0520]: `nb_negative` specializes an item from a parent `impl`, but that item is not marked `default`
      --> /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/pyo3-0.7.0/src/class/number.rs:1399:5
       |
  1392 |   impl<'p, T> PyNumberNegProtocolImpl for T where T: PyNumberProtocol<'p> {}
       |   -------------------------------------------------------------------------- parent `impl` is here
  ...
  1399 | /     fn nb_negative() -> Option<ffi::unaryfunc> {
  1400 | |         py_unary_func!(
  1401 | |             PyNumberNegProtocol,
  1402 | |             T::__neg__,
  ...    |
  1405 | |         )
  1406 | |     }
       | |_____^ cannot specialize default item `nb_negative`
       |
       = note: to specialize, `nb_negative` in the parent `impl` must be marked `default`

  error[E0520]: `nb_positive` specializes an item from a parent `impl`, but that item is not marked `default`
      --> /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/pyo3-0.7.0/src/class/number.rs:1421:5
       |
  1415 |   impl<'p, T> PyNumberPosProtocolImpl for T where T: PyNumberProtocol<'p> {}
       |   -------------------------------------------------------------------------- parent `impl` is here
  ...
  1421 | /     fn nb_positive() -> Option<ffi::unaryfunc> {
  1422 | |         py_unary_func!(
  1423 | |             PyNumberPosProtocol,
  1424 | |             T::__pos__,
  ...    |
  1427 | |         )
  1428 | |     }
       | |_____^ cannot specialize default item `nb_positive`
       |
       = note: to specialize, `nb_positive` in the parent `impl` must be marked `default`

  error[E0520]: `nb_absolute` specializes an item from a parent `impl`, but that item is not marked `default`
      --> /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/pyo3-0.7.0/src/class/number.rs:1443:5
       |
  1437 |   impl<'p, T> PyNumberAbsProtocolImpl for T where T: PyNumberProtocol<'p> {}
       |   -------------------------------------------------------------------------- parent `impl` is here
  ...
  1443 | /     fn nb_absolute() -> Option<ffi::unaryfunc> {
  1444 | |         py_unary_func!(
  1445 | |             PyNumberAbsProtocol,
  1446 | |             T::__abs__,
  ...    |
  1449 | |         )
  1450 | |     }
       | |_____^ cannot specialize default item `nb_absolute`
       |
       = note: to specialize, `nb_absolute` in the parent `impl` must be marked `default`

  error[E0520]: `nb_invert` specializes an item from a parent `impl`, but that item is not marked `default`
      --> /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/pyo3-0.7.0/src/class/number.rs:1465:5
       |
  1459 |   impl<'p, T> PyNumberInvertProtocolImpl for T where T: PyNumberProtocol<'p> {}
       |   ----------------------------------------------------------------------------- parent `impl` is here
  ...
  1465 | /     fn nb_invert() -> Option<ffi::unaryfunc> {
  1466 | |         py_unary_func!(
  1467 | |             PyNumberInvertProtocol,
  1468 | |             T::__invert__,
  ...    |
  1471 | |         )
  1472 | |     }
       | |_____^ cannot specialize default item `nb_invert`
       |
       = note: to specialize, `nb_invert` in the parent `impl` must be marked `default`

  error[E0520]: `nb_int` specializes an item from a parent `impl`, but that item is not marked `default`
      --> /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/pyo3-0.7.0/src/class/number.rs:1487:5
       |
  1481 |   impl<'p, T> PyNumberIntProtocolImpl for T where T: PyNumberProtocol<'p> {}
       |   -------------------------------------------------------------------------- parent `impl` is here
  ...
  1487 | /     fn nb_int() -> Option<ffi::unaryfunc> {
  1488 | |         py_unary_func!(
  1489 | |             PyNumberIntProtocol,
  1490 | |             T::__int__,
  ...    |
  1493 | |         )
  1494 | |     }
       | |_____^ cannot specialize default item `nb_int`
       |
       = note: to specialize, `nb_int` in the parent `impl` must be marked `default`

  error[E0520]: `nb_float` specializes an item from a parent `impl`, but that item is not marked `default`
      --> /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/pyo3-0.7.0/src/class/number.rs:1509:5
       |
  1503 |   impl<'p, T> PyNumberFloatProtocolImpl for T where T: PyNumberProtocol<'p> {}
       |   ---------------------------------------------------------------------------- parent `impl` is here
  ...
  1509 | /     fn nb_float() -> Option<ffi::unaryfunc> {
  1510 | |         py_unary_func!(
  1511 | |             PyNumberFloatProtocol,
  1512 | |             T::__float__,
  ...    |
  1515 | |         )
  1516 | |     }
       | |_____^ cannot specialize default item `nb_float`
       |
       = note: to specialize, `nb_float` in the parent `impl` must be marked `default`

  error[E0520]: `nb_index` specializes an item from a parent `impl`, but that item is not marked `default`
      --> /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/pyo3-0.7.0/src/class/number.rs:1531:5
       |
  1525 |   impl<'p, T> PyNumberIndexProtocolImpl for T where T: PyNumberProtocol<'p> {}
       |   ---------------------------------------------------------------------------- parent `impl` is here
  ...
  1531 | /     fn nb_index() -> Option<ffi::unaryfunc> {
  1532 | |         py_unary_func!(
  1533 | |             PyNumberIndexProtocol,
  1534 | |             T::__index__,
  ...    |
  1537 | |         )
  1538 | |     }
       | |_____^ cannot specialize default item `nb_index`
       |
       = note: to specialize, `nb_index` in the parent `impl` must be marked `default`

  error[E0520]: `tp_as_async` specializes an item from a parent `impl`, but that item is not marked `default`
     --> /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/pyo3-0.7.0/src/class/pyasync.rs:109:5
      |
  102 |   impl<T> PyAsyncProtocolImpl for T {}
      |   ------------------------------------ parent `impl` is here
  ...
  109 | /     fn tp_as_async() -> Option<ffi::PyAsyncMethods> {
  110 | |         Some(ffi::PyAsyncMethods {
  111 | |             am_await: Self::am_await(),
  112 | |             am_aiter: Self::am_aiter(),
  113 | |             am_anext: Self::am_anext(),
  114 | |         })
  115 | |     }
      | |_____^ cannot specialize default item `tp_as_async`
      |
      = note: to specialize, `tp_as_async` in the parent `impl` must be marked `default`

  error[E0520]: `methods` specializes an item from a parent `impl`, but that item is not marked `default`
     --> /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/pyo3-0.7.0/src/class/pyasync.rs:118:5
      |
  102 |   impl<T> PyAsyncProtocolImpl for T {}
      |   ------------------------------------ parent `impl` is here
  ...
  118 | /     fn methods() -> Vec<PyMethodDef> {
  119 | |         let mut methods = Vec::new();
  120 | |
  121 | |         if let Some(def) = <Self as PyAsyncAenterProtocolImpl>::__aenter__() {
  ...   |
  128 | |         methods
  129 | |     }
      | |_____^ cannot specialize default item `methods`
      |
      = note: to specialize, `methods` in the parent `impl` must be marked `default`

  error[E0520]: `am_await` specializes an item from a parent `impl`, but that item is not marked `default`
     --> /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/pyo3-0.7.0/src/class/pyasync.rs:145:5
      |
  138 |   impl<'p, T> PyAsyncAwaitProtocolImpl for T where T: PyAsyncProtocol<'p> {}
      |   -------------------------------------------------------------------------- parent `impl` is here
  ...
  145 | /     fn am_await() -> Option<ffi::unaryfunc> {
  146 | |         py_unary_func!(
  147 | |             PyAsyncAwaitProtocol,
  148 | |             T::__await__,
  ...   |
  151 | |         )
  152 | |     }
      | |_____^ cannot specialize default item `am_await`
      |
      = note: to specialize, `am_await` in the parent `impl` must be marked `default`

  error[E0520]: `am_aiter` specializes an item from a parent `impl`, but that item is not marked `default`
     --> /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/pyo3-0.7.0/src/class/pyasync.rs:168:5
      |
  161 |   impl<'p, T> PyAsyncAiterProtocolImpl for T where T: PyAsyncProtocol<'p> {}
      |   -------------------------------------------------------------------------- parent `impl` is here
  ...
  168 | /     fn am_aiter() -> Option<ffi::unaryfunc> {
  169 | |         py_unary_func!(
  170 | |             PyAsyncAiterProtocol,
  171 | |             T::__aiter__,
  ...   |
  174 | |         )
  175 | |     }
      | |_____^ cannot specialize default item `am_aiter`
      |
      = note: to specialize, `am_aiter` in the parent `impl` must be marked `default`

  error[E0520]: `am_anext` specializes an item from a parent `impl`, but that item is not marked `default`
     --> /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/pyo3-0.7.0/src/class/pyasync.rs:224:9
      |
  184 |   impl<'p, T> PyAsyncAnextProtocolImpl for T where T: PyAsyncProtocol<'p> {}
      |   -------------------------------------------------------------------------- parent `impl` is here
  ...
  224 | /         fn am_anext() -> Option<ffi::unaryfunc> {
  225 | |             py_unary_func!(
  226 | |                 PyAsyncAnextProtocol,
  227 | |                 T::__anext__,
  ...   |
  230 | |             )
  231 | |         }
      | |_________^ cannot specialize default item `am_anext`
      |
      = note: to specialize, `am_anext` in the parent `impl` must be marked `default`

  error[E0520]: `tp_as_sequence` specializes an item from a parent `impl`, but that item is not marked `default`
     --> /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/pyo3-0.7.0/src/class/sequence.rs:148:5
      |
  142 |   impl<T> PySequenceProtocolImpl for T {}
      |   --------------------------------------- parent `impl` is here
  ...
  148 | /     fn tp_as_sequence() -> Option<ffi::PySequenceMethods> {
  149 | |         Some(ffi::PySequenceMethods {
  150 | |             sq_length: Self::sq_length(),
  151 | |             sq_concat: Self::sq_concat(),
  ...   |
  160 | |         })
  161 | |     }
      | |_____^ cannot specialize default item `tp_as_sequence`
      |
      = note: to specialize, `tp_as_sequence` in the parent `impl` must be marked `default`

  error[E0520]: `sq_length` specializes an item from a parent `impl`, but that item is not marked `default`
     --> /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/pyo3-0.7.0/src/class/sequence.rs:176:5
      |
  170 |   impl<'p, T> PySequenceLenProtocolImpl for T where T: PySequenceProtocol<'p> {}
      |   ------------------------------------------------------------------------------ parent `impl` is here
  ...
  176 | /     fn sq_length() -> Option<ffi::lenfunc> {
  177 | |         py_len_func!(PySequenceLenProtocol, T::__len__, LenResultConverter)
  178 | |     }
      | |_____^ cannot specialize default item `sq_length`
      |
      = note: to specialize, `sq_length` in the parent `impl` must be marked `default`

  error[E0520]: `sq_item` specializes an item from a parent `impl`, but that item is not marked `default`
     --> /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/pyo3-0.7.0/src/class/sequence.rs:193:5
      |
  187 |   impl<'p, T> PySequenceGetItemProtocolImpl for T where T: PySequenceProtocol<'p> {}
      |   ---------------------------------------------------------------------------------- parent `impl` is here
  ...
  193 | /     fn sq_item() -> Option<ffi::ssizeargfunc> {
  194 | |         py_ssizearg_func!(
  195 | |             PySequenceGetItemProtocol,
  196 | |             T::__getitem__,
  ...   |
  199 | |         )
  200 | |     }
      | |_____^ cannot specialize default item `sq_item`
      |
      = note: to specialize, `sq_item` in the parent `impl` must be marked `default`

  error[E0520]: `sq_ass_item` specializes an item from a parent `impl`, but that item is not marked `default`
     --> /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/pyo3-0.7.0/src/class/sequence.rs:215:5
      |
  209 |   impl<'p, T> PySequenceSetItemProtocolImpl for T where T: PySequenceProtocol<'p> {}
      |   ---------------------------------------------------------------------------------- parent `impl` is here
  ...
  215 | /     fn sq_ass_item() -> Option<ffi::ssizeobjargproc> {
  216 | |         unsafe extern "C" fn wrap<T>(
  217 | |             slf: *mut ffi::PyObject,
  218 | |             key: ffi::Py_ssize_t,
  ...   |
  248 | |         Some(wrap::<T>)
  249 | |     }
      | |_____^ cannot specialize default item `sq_ass_item`
      |
      = note: to specialize, `sq_ass_item` in the parent `impl` must be marked `default`

  error[E0520]: `sq_contains` specializes an item from a parent `impl`, but that item is not marked `default`
     --> /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/pyo3-0.7.0/src/class/sequence.rs:382:5
      |
  376 |   impl<'p, T> PySequenceContainsProtocolImpl for T where T: PySequenceProtocol<'p> {}
      |   ----------------------------------------------------------------------------------- parent `impl` is here
  ...
  382 | /     fn sq_contains() -> Option<ffi::objobjproc> {
  383 | |         py_binary_func!(
  384 | |             PySequenceContainsProtocol,
  385 | |             T::__contains__,
  ...   |
  389 | |         )
  390 | |     }
      | |_____^ cannot specialize default item `sq_contains`
      |
      = note: to specialize, `sq_contains` in the parent `impl` must be marked `default`

  error[E0520]: `sq_concat` specializes an item from a parent `impl`, but that item is not marked `default`
     --> /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/pyo3-0.7.0/src/class/sequence.rs:405:5
      |
  399 |   impl<'p, T> PySequenceConcatProtocolImpl for T where T: PySequenceProtocol<'p> {}
      |   --------------------------------------------------------------------------------- parent `impl` is here
  ...
  405 | /     fn sq_concat() -> Option<ffi::binaryfunc> {
  406 | |         py_binary_func!(
  407 | |             PySequenceConcatProtocol,
  408 | |             T::__concat__,
  ...   |
  411 | |         )
  412 | |     }
      | |_____^ cannot specialize default item `sq_concat`
      |
      = note: to specialize, `sq_concat` in the parent `impl` must be marked `default`

  error[E0520]: `sq_repeat` specializes an item from a parent `impl`, but that item is not marked `default`
     --> /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/pyo3-0.7.0/src/class/sequence.rs:427:5
      |
  421 |   impl<'p, T> PySequenceRepeatProtocolImpl for T where T: PySequenceProtocol<'p> {}
      |   --------------------------------------------------------------------------------- parent `impl` is here
  ...
  427 | /     fn sq_repeat() -> Option<ffi::ssizeargfunc> {
  428 | |         py_ssizearg_func!(
  429 | |             PySequenceRepeatProtocol,
  430 | |             T::__repeat__,
  ...   |
  433 | |         )
  434 | |     }
      | |_____^ cannot specialize default item `sq_repeat`
      |
      = note: to specialize, `sq_repeat` in the parent `impl` must be marked `default`

  error[E0520]: `sq_inplace_concat` specializes an item from a parent `impl`, but that item is not marked `default`
     --> /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/pyo3-0.7.0/src/class/sequence.rs:449:5
      |
  443 |   impl<'p, T> PySequenceInplaceConcatProtocolImpl for T where T: PySequenceProtocol<'p> {}
      |   ---------------------------------------------------------------------------------------- parent `impl` is here
  ...
  449 | /     fn sq_inplace_concat() -> Option<ffi::binaryfunc> {
  450 | |         py_binary_func!(
  451 | |             PySequenceInplaceConcatProtocol,
  452 | |             T::__inplace_concat__,
  ...   |
  455 | |         )
  456 | |     }
      | |_____^ cannot specialize default item `sq_inplace_concat`
      |
      = note: to specialize, `sq_inplace_concat` in the parent `impl` must be marked `default`

  error[E0520]: `sq_inplace_repeat` specializes an item from a parent `impl`, but that item is not marked `default`
     --> /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/pyo3-0.7.0/src/class/sequence.rs:471:5
      |
  465 |   impl<'p, T> PySequenceInplaceRepeatProtocolImpl for T where T: PySequenceProtocol<'p> {}
      |   ---------------------------------------------------------------------------------------- parent `impl` is here
  ...
  471 | /     fn sq_inplace_repeat() -> Option<ffi::ssizeargfunc> {
  472 | |         py_ssizearg_func!(
  473 | |             PySequenceInplaceRepeatProtocol,
  474 | |             T::__inplace_repeat__,
  ...   |
  477 | |         )
  478 | |     }
      | |_____^ cannot specialize default item `sq_inplace_repeat`
      |
      = note: to specialize, `sq_inplace_repeat` in the parent `impl` must be marked `default`

  error[E0520]: `del_item` specializes an item from a parent `impl`, but that item is not marked `default`
     --> /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/pyo3-0.7.0/src/class/sequence.rs:289:9
      |
  283 |       impl<'p, T> DelItem for T where T: PySequenceProtocol<'p> {}
      |       ------------------------------------------------------------ parent `impl` is here
  ...
  289 | /         fn del_item() -> Option<ffi::ssizeobjargproc> {
  290 | |             unsafe extern "C" fn wrap<T>(
  291 | |                 slf: *mut ffi::PyObject,
  292 | |                 key: ffi::Py_ssize_t,
  ...   |
  319 | |             Some(wrap::<T>)
  320 | |         }
      | |_________^ cannot specialize default item `del_item`
      |
      = note: to specialize, `del_item` in the parent `impl` must be marked `default`

  error[E0520]: `del_set_item` specializes an item from a parent `impl`, but that item is not marked `default`
     --> /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/pyo3-0.7.0/src/class/sequence.rs:335:9
      |
  329 |       impl<'p, T> DelSetItem for T where T: PySequenceProtocol<'p> {}
      |       --------------------------------------------------------------- parent `impl` is here
  ...
  335 | /         fn del_set_item() -> Option<ffi::ssizeobjargproc> {
  336 | |             unsafe extern "C" fn wrap<T>(
  337 | |                 slf: *mut ffi::PyObject,
  338 | |                 key: ffi::Py_ssize_t,
  ...   |
  365 | |             Some(wrap::<T>)
  366 | |         }
      | |_________^ cannot specialize default item `del_set_item`
      |
      = note: to specialize, `del_set_item` in the parent `impl` must be marked `default`

  error[E0520]: `with_borrowed_ptr` specializes an item from a parent `impl`, but that item is not marked `default`
     --> /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/pyo3-0.7.0/src/conversion.rs:117:5
      |
  111 |   impl<T> ToBorrowedObject for T where T: ToPyObject {}
      |   ----------------------------------------------------- parent `impl` is here
  ...
  117 | /     fn with_borrowed_ptr<F, R>(&self, _py: Python, f: F) -> R
  118 | |     where
  119 | |         F: FnOnce(*mut ffi::PyObject) -> R,
  120 | |     {
  121 | |         f(self.as_ptr())
  122 | |     }
      | |_____^ cannot specialize default item `with_borrowed_ptr`
      |
      = note: to specialize, `with_borrowed_ptr` in the parent `impl` must be marked `default`

  error[E0520]: `as_ref_dispatch` specializes an item from a parent `impl`, but that item is not marked `default`
     --> /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/pyo3-0.7.0/src/instance.rs:369:5
      |
  366 |   impl<T: PyTypeInfo> AsPyRefDispatch<T> for Py<T> {}
      |   --------------------------------------------------- parent `impl` is here
  ...
  369 | /     fn as_ref_dispatch(&self, _py: Python) -> &T {
  370 | |         unsafe { &*(self as *const instance::Py<T> as *const T) }
  371 | |     }
      | |_____^ cannot specialize default item `as_ref_dispatch`
      |
      = note: to specialize, `as_ref_dispatch` in the parent `impl` must be marked `default`

  error[E0520]: `as_mut_dispatch` specializes an item from a parent `impl`, but that item is not marked `default`
     --> /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/pyo3-0.7.0/src/instance.rs:372:5
      |
  366 |   impl<T: PyTypeInfo> AsPyRefDispatch<T> for Py<T> {}
      |   --------------------------------------------------- parent `impl` is here
  ...
  372 | /     fn as_mut_dispatch(&mut self, _py: Python) -> &mut T {
  373 | |         unsafe { &mut *(self as *mut _ as *mut T) }
  374 | |     }
      | |_____^ cannot specialize default item `as_mut_dispatch`
      |
      = note: to specialize, `as_mut_dispatch` in the parent `impl` must be marked `default`

  error[E0520]: `to_managed_py_ref` specializes an item from a parent `impl`, but that item is not marked `default`
     --> /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/pyo3-0.7.0/src/instance.rs:576:5
      |
  570 |   impl<T: ToPyObject + ?Sized> ManagedPyRefDispatch for T {}
      |   ---------------------------------------------------------- parent `impl` is here
  ...
  576 | /     fn to_managed_py_ref<'p>(&self, py: Python<'p>) -> ManagedPyRef<'p, Self> {
  577 | |         ManagedPyRef {
  578 | |             data: self.as_ptr(),
  579 | |             data_type: PhantomData,
  580 | |             _py: py,
  581 | |         }
  582 | |     }
      | |_____^ cannot specialize default item `to_managed_py_ref`
      |
      = note: to specialize, `to_managed_py_ref` in the parent `impl` must be marked `default`

  error[E0520]: `drop_impl` specializes an item from a parent `impl`, but that item is not marked `default`
     --> /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/pyo3-0.7.0/src/instance.rs:585:5
      |
  570 | impl<T: ToPyObject + ?Sized> ManagedPyRefDispatch for T {}
      | ---------------------------------------------------------- parent `impl` is here
  ...
  585 |     fn drop_impl(_: &mut ManagedPyRef<T>) {}
      |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ cannot specialize default item `drop_impl`
      |
      = note: to specialize, `drop_impl` in the parent `impl` must be marked `default`

  error: aborting due to 89 previous errors

  For more information about this error, try `rustc --explain E0520`.
  error: could not compile `pyo3`

  Caused by:
    process didn't exit successfully: `rustc --crate-name pyo3 --edition=2018 /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/pyo3-0.7.0/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type lib --emit=dep-info,metadata,link -C opt-level=3 -C embed-bitcode=no --cfg 'feature="default"' --cfg 'feature="extension-module"' -C metadata=2b02d3cc6934fdd6 -C extra-filename=-2b02d3cc6934fdd6 --out-dir /tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps -L dependency=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps --extern inventory=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps/libinventory-701eefaf91ecce0c.rmeta --extern libc=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps/liblibc-9e1e5be5fbec308b.rmeta --extern mashup=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps/libmashup-a1fe0a2bd5505ba2.rmeta --extern num_traits=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps/libnum_traits-b9cd4cd2c6156acf.rmeta --extern pyo3cls=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps/libpyo3cls-98daaa7fb14b4973.so --extern spin=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps/libspin-638b2ded4481154c.rmeta --cap-lints allow --cfg Py_3_5 --cfg Py_3_6 --cfg Py_3_7 --cfg Py_3_8 --cfg Py_3_9 --cfg Py_3 --cfg 'py_sys_config="WITH_THREAD"'` (exit code: 1)
  error: cargo failed with code: 101

  ----------------------------------------
  ERROR: Failed building wheel for celery-exporter
  Running setup.py clean for celery-exporter
Failed to build celery-exporter
Installing collected packages: click, prometheus-client, celery-exporter
    Running setup.py install for celery-exporter ... error
    ERROR: Command errored out with exit status 1:
     command: /usr/bin/python3 -u -c 'import sys, setuptools, tokenize; sys.argv[0] = '"'"'/tmp/pip-install-48lrbb0c/celery-exporter/setup.py'"'"'; __file__='"'"'/tmp/pip-install-48lrbb0c/celery-exporter/setup.py'"'"';f=getattr(tokenize, '"'"'open'"'"', open)(__file__);code=f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' install --record /tmp/pip-record-qgkknkdc/install-record.txt --single-version-externally-managed --user --prefix= --compile --install-headers /home/user/.local/include/python3.9/celery-exporter
         cwd: /tmp/pip-install-48lrbb0c/celery-exporter/
    Complete output (1512 lines):
    running install
    running build
    running build_py
    creating build
    creating build/lib.linux-x86_64-3.9
    creating build/lib.linux-x86_64-3.9/celery_exporter
    copying celery_exporter/monitor.py -> build/lib.linux-x86_64-3.9/celery_exporter
    copying celery_exporter/__main__.py -> build/lib.linux-x86_64-3.9/celery_exporter
    copying celery_exporter/metrics.py -> build/lib.linux-x86_64-3.9/celery_exporter
    copying celery_exporter/utils.py -> build/lib.linux-x86_64-3.9/celery_exporter
    copying celery_exporter/__init__.py -> build/lib.linux-x86_64-3.9/celery_exporter
    copying celery_exporter/core.py -> build/lib.linux-x86_64-3.9/celery_exporter
    running build_ext
    running build_rust
    cargo rustc --lib --manifest-path Cargo.toml --features pyo3/extension-module --release --verbose -- --crate-type cdylib
       Compiling proc-macro2 v0.4.30
       Compiling proc-macro2 v1.0.24
       Compiling unicode-xid v0.1.0
       Compiling unicode-xid v0.2.1
       Compiling syn v1.0.60
       Compiling memchr v2.3.4
       Compiling proc-macro-hack-impl v0.4.2
       Compiling syn v0.15.44
         Running `rustc --crate-name build_script_build /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/proc-macro2-0.4.30/build.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type bin --emit=dep-info,link -C embed-bitcode=no -C debug-assertions=off --cfg 'feature="default"' --cfg 'feature="proc-macro"' -C metadata=bc746ed6ac1291cb -C extra-filename=-bc746ed6ac1291cb --out-dir /tmp/pip-install-48lrbb0c/celery-exporter/target/release/build/proc-macro2-bc746ed6ac1291cb -L dependency=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps --cap-lints allow`
         Running `rustc --crate-name build_script_build --edition=2018 /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/proc-macro2-1.0.24/build.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type bin --emit=dep-info,link -C embed-bitcode=no -C debug-assertions=off --cfg 'feature="default"' --cfg 'feature="proc-macro"' -C metadata=70b9ba8e0873bfca -C extra-filename=-70b9ba8e0873bfca --out-dir /tmp/pip-install-48lrbb0c/celery-exporter/target/release/build/proc-macro2-70b9ba8e0873bfca -L dependency=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps --cap-lints allow`
         Running `rustc --crate-name unicode_xid /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/unicode-xid-0.1.0/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no -C debug-assertions=off --cfg 'feature="default"' -C metadata=5f6f0613524b3651 -C extra-filename=-5f6f0613524b3651 --out-dir /tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps -L dependency=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps --cap-lints allow`
         Running `rustc --crate-name unicode_xid /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/unicode-xid-0.2.1/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no -C debug-assertions=off --cfg 'feature="default"' -C metadata=222f0e750869ec41 -C extra-filename=-222f0e750869ec41 --out-dir /tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps -L dependency=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps --cap-lints allow`
         Running `rustc --crate-name build_script_build --edition=2018 /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/syn-1.0.60/build.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type bin --emit=dep-info,link -C embed-bitcode=no -C debug-assertions=off --cfg 'feature="clone-impls"' --cfg 'feature="default"' --cfg 'feature="derive"' --cfg 'feature="full"' --cfg 'feature="parsing"' --cfg 'feature="printing"' --cfg 'feature="proc-macro"' --cfg 'feature="quote"' -C metadata=93a041d8813e8d95 -C extra-filename=-93a041d8813e8d95 --out-dir /tmp/pip-install-48lrbb0c/celery-exporter/target/release/build/syn-93a041d8813e8d95 -L dependency=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps --cap-lints allow`
         Running `rustc --crate-name build_script_build /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/memchr-2.3.4/build.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type bin --emit=dep-info,link -C embed-bitcode=no -C debug-assertions=off --cfg 'feature="default"' --cfg 'feature="std"' --cfg 'feature="use_std"' -C metadata=d3c835bf5eabb0a7 -C extra-filename=-d3c835bf5eabb0a7 --out-dir /tmp/pip-install-48lrbb0c/celery-exporter/target/release/build/memchr-d3c835bf5eabb0a7 -L dependency=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps --cap-lints allow`
         Running `rustc --crate-name proc_macro_hack_impl /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/proc-macro-hack-impl-0.4.2/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type proc-macro --emit=dep-info,link -C prefer-dynamic -C embed-bitcode=no -C debug-assertions=off -C metadata=035a5290e2676023 -C extra-filename=-035a5290e2676023 --out-dir /tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps -L dependency=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps --extern proc_macro --cap-lints allow`
         Running `rustc --crate-name build_script_build /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/syn-0.15.44/build.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type bin --emit=dep-info,link -C embed-bitcode=no -C debug-assertions=off --cfg 'feature="clone-impls"' --cfg 'feature="default"' --cfg 'feature="derive"' --cfg 'feature="extra-traits"' --cfg 'feature="full"' --cfg 'feature="parsing"' --cfg 'feature="printing"' --cfg 'feature="proc-macro"' --cfg 'feature="quote"' -C metadata=665f6690189572d3 -C extra-filename=-665f6690189572d3 --out-dir /tmp/pip-install-48lrbb0c/celery-exporter/target/release/build/syn-665f6690189572d3 -L dependency=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps --cap-lints allow`
       Compiling once_cell v1.5.2
         Running `rustc --crate-name once_cell --edition=2018 /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/once_cell-1.5.2/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no -C debug-assertions=off --cfg 'feature="alloc"' --cfg 'feature="default"' --cfg 'feature="std"' -C metadata=a14ccf1b28fa585e -C extra-filename=-a14ccf1b28fa585e --out-dir /tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps -L dependency=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps --cap-lints allow`
       Compiling regex-syntax v0.6.22
         Running `rustc --crate-name regex_syntax /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/regex-syntax-0.6.22/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no -C debug-assertions=off --cfg 'feature="default"' --cfg 'feature="unicode"' --cfg 'feature="unicode-age"' --cfg 'feature="unicode-bool"' --cfg 'feature="unicode-case"' --cfg 'feature="unicode-gencat"' --cfg 'feature="unicode-perl"' --cfg 'feature="unicode-script"' --cfg 'feature="unicode-segment"' -C metadata=529e8e64405e9a1c -C extra-filename=-529e8e64405e9a1c --out-dir /tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps -L dependency=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps --cap-lints allow`
       Compiling autocfg v1.0.1
         Running `rustc --crate-name autocfg /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/autocfg-1.0.1/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no -C debug-assertions=off -C metadata=eaf3a4b21f4512fc -C extra-filename=-eaf3a4b21f4512fc --out-dir /tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps -L dependency=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps --cap-lints allow`
       Compiling inventory v0.1.10
         Running `rustc --crate-name build_script_build --edition=2018 /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/inventory-0.1.10/build.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type bin --emit=dep-info,link -C embed-bitcode=no -C debug-assertions=off -C metadata=e5e69b3c9fdc979f -C extra-filename=-e5e69b3c9fdc979f --out-dir /tmp/pip-install-48lrbb0c/celery-exporter/target/release/build/inventory-e5e69b3c9fdc979f -L dependency=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps --cap-lints allow`
       Compiling libc v0.2.85
         Running `rustc --crate-name build_script_build /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/libc-0.2.85/build.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type bin --emit=dep-info,link -C embed-bitcode=no -C debug-assertions=off --cfg 'feature="default"' --cfg 'feature="std"' -C metadata=5404c481b3a75226 -C extra-filename=-5404c481b3a75226 --out-dir /tmp/pip-install-48lrbb0c/celery-exporter/target/release/build/libc-5404c481b3a75226 -L dependency=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps --cap-lints allow`
       Compiling version_check v0.1.5
         Running `rustc --crate-name version_check /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/version_check-0.1.5/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no -C debug-assertions=off -C metadata=0d09839629235ade -C extra-filename=-0d09839629235ade --out-dir /tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps -L dependency=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps --cap-lints allow`
       Compiling hashbrown v0.5.0
         Running `rustc --crate-name hashbrown --edition=2018 /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/hashbrown-0.5.0/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts --crate-type lib --emit=dep-info,metadata,link -C opt-level=3 -C embed-bitcode=no --cfg 'feature="default"' -C metadata=0ae6d34bb12bf8ea -C extra-filename=-0ae6d34bb12bf8ea --out-dir /tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps -L dependency=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps --cap-lints allow`
       Compiling spin v0.5.2
         Running `rustc --crate-name spin /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/spin-0.5.2/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts --crate-type lib --emit=dep-info,metadata,link -C opt-level=3 -C embed-bitcode=no -C metadata=638b2ded4481154c -C extra-filename=-638b2ded4481154c --out-dir /tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps -L dependency=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps --cap-lints allow`
       Compiling thread_local v1.1.3
         Running `rustc --crate-name thread_local --edition=2018 /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/thread_local-1.1.3/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no -C debug-assertions=off -C metadata=e60ec9865252cfb1 -C extra-filename=-e60ec9865252cfb1 --out-dir /tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps -L dependency=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps --extern once_cell=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps/libonce_cell-a14ccf1b28fa585e.rmeta --cap-lints allow`
         Running `/tmp/pip-install-48lrbb0c/celery-exporter/target/release/build/memchr-d3c835bf5eabb0a7/build-script-build`
         Running `/tmp/pip-install-48lrbb0c/celery-exporter/target/release/build/syn-665f6690189572d3/build-script-build`
         Running `/tmp/pip-install-48lrbb0c/celery-exporter/target/release/build/syn-93a041d8813e8d95/build-script-build`
         Running `/tmp/pip-install-48lrbb0c/celery-exporter/target/release/build/proc-macro2-70b9ba8e0873bfca/build-script-build`
         Running `/tmp/pip-install-48lrbb0c/celery-exporter/target/release/build/proc-macro2-bc746ed6ac1291cb/build-script-build`
       Compiling proc-macro-hack v0.4.2
         Running `rustc --crate-name proc_macro_hack /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/proc-macro-hack-0.4.2/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no -C debug-assertions=off -C metadata=187068e14d5baf40 -C extra-filename=-187068e14d5baf40 --out-dir /tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps -L dependency=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps --extern proc_macro_hack_impl=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps/libproc_macro_hack_impl-035a5290e2676023.so --cap-lints allow`
         Running `rustc --crate-name proc_macro_hack /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/proc-macro-hack-0.4.2/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts --crate-type lib --emit=dep-info,metadata,link -C opt-level=3 -C embed-bitcode=no -C metadata=d2d214166bb2d48c -C extra-filename=-d2d214166bb2d48c --out-dir /tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps -L dependency=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps --extern proc_macro_hack_impl=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps/libproc_macro_hack_impl-035a5290e2676023.so --cap-lints allow`
         Running `rustc --crate-name memchr /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/memchr-2.3.4/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no -C debug-assertions=off --cfg 'feature="default"' --cfg 'feature="std"' --cfg 'feature="use_std"' -C metadata=396ffb27b4729a17 -C extra-filename=-396ffb27b4729a17 --out-dir /tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps -L dependency=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps --cap-lints allow --cfg memchr_runtime_simd --cfg memchr_runtime_sse2 --cfg memchr_runtime_sse42 --cfg memchr_runtime_avx`
         Running `/tmp/pip-install-48lrbb0c/celery-exporter/target/release/build/inventory-e5e69b3c9fdc979f/build-script-build`
         Running `rustc --crate-name proc_macro2 --edition=2018 /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/proc-macro2-1.0.24/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no -C debug-assertions=off --cfg 'feature="default"' --cfg 'feature="proc-macro"' -C metadata=3d30b1cf012cba61 -C extra-filename=-3d30b1cf012cba61 --out-dir /tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps -L dependency=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps --extern unicode_xid=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps/libunicode_xid-222f0e750869ec41.rmeta --cap-lints allow --cfg lexerror_display --cfg hygiene --cfg use_proc_macro --cfg wrap_proc_macro --cfg proc_macro_span`
         Running `/tmp/pip-install-48lrbb0c/celery-exporter/target/release/build/libc-5404c481b3a75226/build-script-build`
       Compiling num-traits v0.2.14
         Running `rustc --crate-name build_script_build /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/num-traits-0.2.14/build.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type bin --emit=dep-info,link -C embed-bitcode=no -C debug-assertions=off --cfg 'feature="default"' --cfg 'feature="std"' -C metadata=91b8cf90a5e47c8f -C extra-filename=-91b8cf90a5e47c8f --out-dir /tmp/pip-install-48lrbb0c/celery-exporter/target/release/build/num-traits-91b8cf90a5e47c8f -L dependency=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps --extern autocfg=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps/libautocfg-eaf3a4b21f4512fc.rlib --cap-lints allow`
       Compiling lru v0.1.17
         Running `rustc --crate-name lru /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/lru-0.1.17/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type lib --emit=dep-info,metadata,link -C opt-level=3 -C embed-bitcode=no -C metadata=f9e1586075937229 -C extra-filename=-f9e1586075937229 --out-dir /tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps -L dependency=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps --extern hashbrown=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps/libhashbrown-0ae6d34bb12bf8ea.rmeta --cap-lints allow`
         Running `rustc --crate-name proc_macro2 /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/proc-macro2-0.4.30/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no -C debug-assertions=off --cfg 'feature="default"' --cfg 'feature="proc-macro"' -C metadata=c15da2d35fd6b882 -C extra-filename=-c15da2d35fd6b882 --out-dir /tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps -L dependency=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps --extern unicode_xid=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps/libunicode_xid-5f6f0613524b3651.rmeta --cap-lints allow --cfg u128 --cfg use_proc_macro --cfg wrap_proc_macro --cfg proc_macro_span`
         Running `rustc --crate-name libc /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/libc-0.2.85/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts --crate-type lib --emit=dep-info,metadata,link -C opt-level=3 -C embed-bitcode=no --cfg 'feature="default"' --cfg 'feature="std"' -C metadata=9e1e5be5fbec308b -C extra-filename=-9e1e5be5fbec308b --out-dir /tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps -L dependency=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps --cap-lints allow --cfg freebsd11 --cfg libc_priv_mod_use --cfg libc_union --cfg libc_const_size_of --cfg libc_align --cfg libc_core_cvoid --cfg libc_packedN --cfg libc_cfg_target_vendor`
       Compiling aho-corasick v0.7.15
         Running `rustc --crate-name aho_corasick /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/aho-corasick-0.7.15/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no -C debug-assertions=off --cfg 'feature="default"' --cfg 'feature="std"' -C metadata=1b8dbda8e0b45746 -C extra-filename=-1b8dbda8e0b45746 --out-dir /tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps -L dependency=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps --extern memchr=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps/libmemchr-396ffb27b4729a17.rmeta --cap-lints allow`
         Running `/tmp/pip-install-48lrbb0c/celery-exporter/target/release/build/num-traits-91b8cf90a5e47c8f/build-script-build`
       Compiling quote v0.6.13
         Running `rustc --crate-name quote /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/quote-0.6.13/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no -C debug-assertions=off --cfg 'feature="default"' --cfg 'feature="proc-macro"' -C metadata=2210637c5717f8df -C extra-filename=-2210637c5717f8df --out-dir /tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps -L dependency=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps --extern proc_macro2=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps/libproc_macro2-c15da2d35fd6b882.rmeta --cap-lints allow`
       Compiling quote v1.0.8
         Running `rustc --crate-name quote --edition=2018 /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/quote-1.0.8/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no -C debug-assertions=off --cfg 'feature="default"' --cfg 'feature="proc-macro"' -C metadata=6e384319eb964c78 -C extra-filename=-6e384319eb964c78 --out-dir /tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps -L dependency=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps --extern proc_macro2=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps/libproc_macro2-3d30b1cf012cba61.rmeta --cap-lints allow`
         Running `rustc --crate-name syn /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/syn-0.15.44/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no -C debug-assertions=off --cfg 'feature="clone-impls"' --cfg 'feature="default"' --cfg 'feature="derive"' --cfg 'feature="extra-traits"' --cfg 'feature="full"' --cfg 'feature="parsing"' --cfg 'feature="printing"' --cfg 'feature="proc-macro"' --cfg 'feature="quote"' -C metadata=730e1afe94ec8000 -C extra-filename=-730e1afe94ec8000 --out-dir /tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps -L dependency=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps --extern proc_macro2=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps/libproc_macro2-c15da2d35fd6b882.rmeta --extern quote=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps/libquote-2210637c5717f8df.rmeta --extern unicode_xid=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps/libunicode_xid-5f6f0613524b3651.rmeta --cap-lints allow --cfg syn_can_match_trailing_dollar --cfg syn_can_use_thread_id --cfg syn_can_use_associated_constants --cfg syn_can_call_macro_by_path`
       Compiling mashup-impl v0.1.12
         Running `rustc --crate-name mashup_impl /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/mashup-impl-0.1.12/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type proc-macro --emit=dep-info,link -C prefer-dynamic -C embed-bitcode=no -C debug-assertions=off -C metadata=864c3ceaee8709d5 -C extra-filename=-864c3ceaee8709d5 --out-dir /tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps -L dependency=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps --extern proc_macro_hack=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps/libproc_macro_hack-187068e14d5baf40.rlib --extern proc_macro2=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps/libproc_macro2-c15da2d35fd6b882.rlib --extern proc_macro --cap-lints allow`
         Running `rustc --crate-name num_traits /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/num-traits-0.2.14/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts --crate-type lib --emit=dep-info,metadata,link -C opt-level=3 -C embed-bitcode=no --cfg 'feature="default"' --cfg 'feature="std"' -C metadata=b9cd4cd2c6156acf -C extra-filename=-b9cd4cd2c6156acf --out-dir /tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps -L dependency=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps --cap-lints allow --cfg has_i128 --cfg has_to_int_unchecked`
         Running `rustc --crate-name syn --edition=2018 /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/syn-1.0.60/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no -C debug-assertions=off --cfg 'feature="clone-impls"' --cfg 'feature="default"' --cfg 'feature="derive"' --cfg 'feature="full"' --cfg 'feature="parsing"' --cfg 'feature="printing"' --cfg 'feature="proc-macro"' --cfg 'feature="quote"' -C metadata=8e47350e18924cd4 -C extra-filename=-8e47350e18924cd4 --out-dir /tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps -L dependency=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps --extern proc_macro2=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps/libproc_macro2-3d30b1cf012cba61.rmeta --extern quote=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps/libquote-6e384319eb964c78.rmeta --extern unicode_xid=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps/libunicode_xid-222f0e750869ec41.rmeta --cap-lints allow`
       Compiling mashup v0.1.12
         Running `rustc --crate-name mashup /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/mashup-0.1.12/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts --crate-type lib --emit=dep-info,metadata,link -C opt-level=3 -C embed-bitcode=no -C metadata=a1fe0a2bd5505ba2 -C extra-filename=-a1fe0a2bd5505ba2 --out-dir /tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps -L dependency=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps --extern mashup_impl=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps/libmashup_impl-864c3ceaee8709d5.so --extern proc_macro_hack=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps/libproc_macro_hack-d2d214166bb2d48c.rmeta --cap-lints allow`
       Compiling regex v1.4.3
         Running `rustc --crate-name regex /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/regex-1.4.3/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no -C debug-assertions=off --cfg 'feature="aho-corasick"' --cfg 'feature="default"' --cfg 'feature="memchr"' --cfg 'feature="perf"' --cfg 'feature="perf-cache"' --cfg 'feature="perf-dfa"' --cfg 'feature="perf-inline"' --cfg 'feature="perf-literal"' --cfg 'feature="std"' --cfg 'feature="thread_local"' --cfg 'feature="unicode"' --cfg 'feature="unicode-age"' --cfg 'feature="unicode-bool"' --cfg 'feature="unicode-case"' --cfg 'feature="unicode-gencat"' --cfg 'feature="unicode-perl"' --cfg 'feature="unicode-script"' --cfg 'feature="unicode-segment"' -C metadata=a0b1a75da25f17cf -C extra-filename=-a0b1a75da25f17cf --out-dir /tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps -L dependency=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps --extern aho_corasick=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps/libaho_corasick-1b8dbda8e0b45746.rmeta --extern memchr=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps/libmemchr-396ffb27b4729a17.rmeta --extern regex_syntax=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps/libregex_syntax-529e8e64405e9a1c.rmeta --extern thread_local=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps/libthread_local-e60ec9865252cfb1.rmeta --cap-lints allow`
       Compiling pyo3 v0.7.0
         Running `rustc --crate-name build_script_build --edition=2018 /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/pyo3-0.7.0/build.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type bin --emit=dep-info,link -C embed-bitcode=no -C debug-assertions=off --cfg 'feature="default"' --cfg 'feature="extension-module"' -C metadata=ab9c1ea45a3a427e -C extra-filename=-ab9c1ea45a3a427e --out-dir /tmp/pip-install-48lrbb0c/celery-exporter/target/release/build/pyo3-ab9c1ea45a3a427e -L dependency=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps --extern regex=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps/libregex-a0b1a75da25f17cf.rlib --extern version_check=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps/libversion_check-0d09839629235ade.rlib --cap-lints allow`
         Running `/tmp/pip-install-48lrbb0c/celery-exporter/target/release/build/pyo3-ab9c1ea45a3a427e/build-script-build`
       Compiling pyo3-derive-backend v0.7.0
         Running `rustc --crate-name pyo3_derive_backend --edition=2018 /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/pyo3-derive-backend-0.7.0/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no -C debug-assertions=off -C metadata=e2484e0e1a1620aa -C extra-filename=-e2484e0e1a1620aa --out-dir /tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps -L dependency=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps --extern proc_macro2=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps/libproc_macro2-c15da2d35fd6b882.rmeta --extern quote=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps/libquote-2210637c5717f8df.rmeta --extern syn=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps/libsyn-730e1afe94ec8000.rmeta --cap-lints allow`
       Compiling ctor v0.1.19
       Compiling inventory-impl v0.1.10
       Compiling ghost v0.1.2
         Running `rustc --crate-name ctor --edition=2018 /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/ctor-0.1.19/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type proc-macro --emit=dep-info,link -C prefer-dynamic -C embed-bitcode=no -C debug-assertions=off -C metadata=fb6b9cf2e2199235 -C extra-filename=-fb6b9cf2e2199235 --out-dir /tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps -L dependency=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps --extern quote=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps/libquote-6e384319eb964c78.rlib --extern syn=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps/libsyn-8e47350e18924cd4.rlib --extern proc_macro --cap-lints allow`
         Running `rustc --crate-name inventory_impl --edition=2018 /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/inventory-impl-0.1.10/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type proc-macro --emit=dep-info,link -C prefer-dynamic -C embed-bitcode=no -C debug-assertions=off -C metadata=6254cb54bb9272e6 -C extra-filename=-6254cb54bb9272e6 --out-dir /tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps -L dependency=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps --extern proc_macro2=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps/libproc_macro2-3d30b1cf012cba61.rlib --extern quote=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps/libquote-6e384319eb964c78.rlib --extern syn=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps/libsyn-8e47350e18924cd4.rlib --extern proc_macro --cap-lints allow`
         Running `rustc --crate-name ghost --edition=2018 /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/ghost-0.1.2/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type proc-macro --emit=dep-info,link -C prefer-dynamic -C embed-bitcode=no -C debug-assertions=off -C metadata=61cd961599adf9d8 -C extra-filename=-61cd961599adf9d8 --out-dir /tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps -L dependency=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps --extern proc_macro2=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps/libproc_macro2-3d30b1cf012cba61.rlib --extern quote=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps/libquote-6e384319eb964c78.rlib --extern syn=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps/libsyn-8e47350e18924cd4.rlib --extern proc_macro --cap-lints allow`
         Running `rustc --crate-name inventory --edition=2018 /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/inventory-0.1.10/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts --crate-type lib --emit=dep-info,metadata,link -C opt-level=3 -C embed-bitcode=no -C metadata=701eefaf91ecce0c -C extra-filename=-701eefaf91ecce0c --out-dir /tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps -L dependency=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps --extern ctor=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps/libctor-fb6b9cf2e2199235.so --extern ghost=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps/libghost-61cd961599adf9d8.so --extern inventory_impl=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps/libinventory_impl-6254cb54bb9272e6.so --cap-lints allow`
       Compiling pyo3cls v0.7.0
         Running `rustc --crate-name pyo3cls --edition=2018 /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/pyo3cls-0.7.0/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type proc-macro --emit=dep-info,link -C prefer-dynamic -C embed-bitcode=no -C debug-assertions=off -C metadata=98daaa7fb14b4973 -C extra-filename=-98daaa7fb14b4973 --out-dir /tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps -L dependency=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps --extern proc_macro2=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps/libproc_macro2-c15da2d35fd6b882.rlib --extern pyo3_derive_backend=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps/libpyo3_derive_backend-e2484e0e1a1620aa.rlib --extern quote=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps/libquote-2210637c5717f8df.rlib --extern syn=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps/libsyn-730e1afe94ec8000.rlib --extern proc_macro --cap-lints allow`
         Running `rustc --crate-name pyo3 --edition=2018 /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/pyo3-0.7.0/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type lib --emit=dep-info,metadata,link -C opt-level=3 -C embed-bitcode=no --cfg 'feature="default"' --cfg 'feature="extension-module"' -C metadata=2b02d3cc6934fdd6 -C extra-filename=-2b02d3cc6934fdd6 --out-dir /tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps -L dependency=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps --extern inventory=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps/libinventory-701eefaf91ecce0c.rmeta --extern libc=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps/liblibc-9e1e5be5fbec308b.rmeta --extern mashup=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps/libmashup-a1fe0a2bd5505ba2.rmeta --extern num_traits=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps/libnum_traits-b9cd4cd2c6156acf.rmeta --extern pyo3cls=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps/libpyo3cls-98daaa7fb14b4973.so --extern spin=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps/libspin-638b2ded4481154c.rmeta --cap-lints allow --cfg Py_3_5 --cfg Py_3_6 --cfg Py_3_7 --cfg Py_3_8 --cfg Py_3_9 --cfg Py_3 --cfg 'py_sys_config="WITH_THREAD"'`
    error[E0520]: `methods` specializes an item from a parent `impl`, but that item is not marked `default`
       --> /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/pyo3-0.7.0/src/class/basic.rs:170:5
        |
    164 |   impl<T> PyObjectProtocolImpl for T {}
        |   ------------------------------------- parent `impl` is here
    ...
    170 | /     fn methods() -> Vec<PyMethodDef> {
    171 | |         let mut methods = Vec::new();
    172 | |
    173 | |         if let Some(def) = <Self as FormatProtocolImpl>::__format__() {
    ...   |
    182 | |         methods
    183 | |     }
        | |_____^ cannot specialize default item `methods`
        |
        = note: to specialize, `methods` in the parent `impl` must be marked `default`

    error[E0520]: `tp_as_object` specializes an item from a parent `impl`, but that item is not marked `default`
       --> /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/pyo3-0.7.0/src/class/basic.rs:184:5
        |
    164 |   impl<T> PyObjectProtocolImpl for T {}
        |   ------------------------------------- parent `impl` is here
    ...
    184 | /     fn tp_as_object(type_object: &mut ffi::PyTypeObject) {
    185 | |         type_object.tp_str = Self::tp_str();
    186 | |         type_object.tp_repr = Self::tp_repr();
    187 | |         type_object.tp_hash = Self::tp_hash();
    ...   |
    190 | |         type_object.tp_setattro = tp_setattro_impl::tp_setattro::<Self>();
    191 | |     }
        | |_____^ cannot specialize default item `tp_as_object`
        |
        = note: to specialize, `tp_as_object` in the parent `impl` must be marked `default`

    error[E0520]: `nb_bool_fn` specializes an item from a parent `impl`, but that item is not marked `default`
       --> /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/pyo3-0.7.0/src/class/basic.rs:192:5
        |
    164 |   impl<T> PyObjectProtocolImpl for T {}
        |   ------------------------------------- parent `impl` is here
    ...
    192 | /     fn nb_bool_fn() -> Option<ffi::inquiry> {
    193 | |         Self::nb_bool()
    194 | |     }
        | |_____^ cannot specialize default item `nb_bool_fn`
        |
        = note: to specialize, `nb_bool_fn` in the parent `impl` must be marked `default`

    error[E0520]: `tp_getattro` specializes an item from a parent `impl`, but that item is not marked `default`
       --> /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/pyo3-0.7.0/src/class/basic.rs:209:5
        |
    203 |   impl<'p, T> GetAttrProtocolImpl for T where T: PyObjectProtocol<'p> {}
        |   ---------------------------------------------------------------------- parent `impl` is here
    ...
    209 | /     fn tp_getattro() -> Option<ffi::binaryfunc> {
    210 | |         py_binary_func!(
    211 | |             PyObjectGetAttrProtocol,
    212 | |             T::__getattr__,
    ...   |
    215 | |         )
    216 | |     }
        | |_____^ cannot specialize default item `tp_getattro`
        |
        = note: to specialize, `tp_getattro` in the parent `impl` must be marked `default`

    error[E0520]: `tp_str` specializes an item from a parent `impl`, but that item is not marked `default`
       --> /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/pyo3-0.7.0/src/class/basic.rs:313:5
        |
    308 |   impl<'p, T> StrProtocolImpl for T where T: PyObjectProtocol<'p> {}
        |   ------------------------------------------------------------------ parent `impl` is here
    ...
    313 | /     fn tp_str() -> Option<ffi::unaryfunc> {
    314 | |         py_unary_func!(
    315 | |             PyObjectStrProtocol,
    316 | |             T::__str__,
    ...   |
    319 | |         )
    320 | |     }
        | |_____^ cannot specialize default item `tp_str`
        |
        = note: to specialize, `tp_str` in the parent `impl` must be marked `default`

    error[E0520]: `tp_repr` specializes an item from a parent `impl`, but that item is not marked `default`
       --> /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/pyo3-0.7.0/src/class/basic.rs:333:5
        |
    328 |   impl<'p, T> ReprProtocolImpl for T where T: PyObjectProtocol<'p> {}
        |   ------------------------------------------------------------------- parent `impl` is here
    ...
    333 | /     fn tp_repr() -> Option<ffi::unaryfunc> {
    334 | |         py_unary_func!(
    335 | |             PyObjectReprProtocol,
    336 | |             T::__repr__,
    ...   |
    339 | |         )
    340 | |     }
        | |_____^ cannot specialize default item `tp_repr`
        |
        = note: to specialize, `tp_repr` in the parent `impl` must be marked `default`

    error[E0520]: `tp_hash` specializes an item from a parent `impl`, but that item is not marked `default`
       --> /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/pyo3-0.7.0/src/class/basic.rs:377:5
        |
    372 |   impl<'p, T> HashProtocolImpl for T where T: PyObjectProtocol<'p> {}
        |   ------------------------------------------------------------------- parent `impl` is here
    ...
    377 | /     fn tp_hash() -> Option<ffi::hashfunc> {
    378 | |         py_unary_func!(
    379 | |             PyObjectHashProtocol,
    380 | |             T::__hash__,
    ...   |
    384 | |         )
    385 | |     }
        | |_____^ cannot specialize default item `tp_hash`
        |
        = note: to specialize, `tp_hash` in the parent `impl` must be marked `default`

    error[E0520]: `nb_bool` specializes an item from a parent `impl`, but that item is not marked `default`
       --> /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/pyo3-0.7.0/src/class/basic.rs:398:5
        |
    393 |   impl<'p, T> BoolProtocolImpl for T where T: PyObjectProtocol<'p> {}
        |   ------------------------------------------------------------------- parent `impl` is here
    ...
    398 | /     fn nb_bool() -> Option<ffi::inquiry> {
    399 | |         py_unary_func!(
    400 | |             PyObjectBoolProtocol,
    401 | |             T::__bool__,
    ...   |
    405 | |         )
    406 | |     }
        | |_____^ cannot specialize default item `nb_bool`
        |
        = note: to specialize, `nb_bool` in the parent `impl` must be marked `default`

    error[E0520]: `tp_richcompare` specializes an item from a parent `impl`, but that item is not marked `default`
       --> /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/pyo3-0.7.0/src/class/basic.rs:419:5
        |
    414 |   impl<'p, T> RichcmpProtocolImpl for T where T: PyObjectProtocol<'p> {}
        |   ---------------------------------------------------------------------- parent `impl` is here
    ...
    419 | /     fn tp_richcompare() -> Option<ffi::richcmpfunc> {
    420 | |         unsafe extern "C" fn wrap<T>(
    421 | |             slf: *mut ffi::PyObject,
    422 | |             arg: *mut ffi::PyObject,
    ...   |
    448 | |         Some(wrap::<T>)
    449 | |     }
        | |_____^ cannot specialize default item `tp_richcompare`
        |
        = note: to specialize, `tp_richcompare` in the parent `impl` must be marked `default`

    error[E0520]: `set_attr` specializes an item from a parent `impl`, but that item is not marked `default`
       --> /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/pyo3-0.7.0/src/class/basic.rs:257:9
        |
    251 |       impl<'p, T: PyObjectProtocol<'p>> SetAttr for T {}
        |       -------------------------------------------------- parent `impl` is here
    ...
    257 | /         fn set_attr() -> Option<ffi::setattrofunc> {
    258 | |             py_func_set!(PyObjectSetAttrProtocol, T, __setattr__)
    259 | |         }
        | |_________^ cannot specialize default item `set_attr`
        |
        = note: to specialize, `set_attr` in the parent `impl` must be marked `default`

    error[E0520]: `del_attr` specializes an item from a parent `impl`, but that item is not marked `default`
       --> /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/pyo3-0.7.0/src/class/basic.rs:274:9
        |
    268 |       impl<'p, T> DelAttr for T where T: PyObjectProtocol<'p> {}
        |       ---------------------------------------------------------- parent `impl` is here
    ...
    274 | /         fn del_attr() -> Option<ffi::setattrofunc> {
    275 | |             py_func_del!(PyObjectDelAttrProtocol, T, __delattr__)
    276 | |         }
        | |_________^ cannot specialize default item `del_attr`
        |
        = note: to specialize, `del_attr` in the parent `impl` must be marked `default`

    error[E0520]: `set_del_attr` specializes an item from a parent `impl`, but that item is not marked `default`
       --> /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/pyo3-0.7.0/src/class/basic.rs:291:9
        |
    285 |       impl<'p, T> SetDelAttr for T where T: PyObjectProtocol<'p> {}
        |       ------------------------------------------------------------- parent `impl` is here
    ...
    291 | /         fn set_del_attr() -> Option<ffi::setattrofunc> {
    292 | |             py_func_set_del!(
    293 | |                 PyObjectSetAttrProtocol,
    294 | |                 PyObjectDelAttrProtocol,
    ...   |
    298 | |             )
    299 | |         }
        | |_________^ cannot specialize default item `set_del_attr`
        |
        = note: to specialize, `set_del_attr` in the parent `impl` must be marked `default`

    error[E0520]: `tp_as_buffer` specializes an item from a parent `impl`, but that item is not marked `default`
      --> /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/pyo3-0.7.0/src/class/buffer.rs:57:5
       |
    49 |   impl<T> PyBufferProtocolImpl for T {}
       |   ------------------------------------- parent `impl` is here
    ...
    57 | /     fn tp_as_buffer() -> Option<ffi::PyBufferProcs> {
    58 | |         Some(ffi::PyBufferProcs {
    59 | |             bf_getbuffer: Self::cb_bf_getbuffer(),
    60 | |             bf_releasebuffer: None,
    61 | |             ..ffi::PyBufferProcs_INIT
    62 | |         })
    63 | |     }
       | |_____^ cannot specialize default item `tp_as_buffer`
       |
       = note: to specialize, `tp_as_buffer` in the parent `impl` must be marked `default`

    error[E0520]: `cb_bf_getbuffer` specializes an item from a parent `impl`, but that item is not marked `default`
      --> /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/pyo3-0.7.0/src/class/buffer.rs:79:5
       |
    72 |   impl<'p, T> PyBufferGetBufferProtocolImpl for T where T: PyBufferProtocol<'p> {}
       |   -------------------------------------------------------------------------------- parent `impl` is here
    ...
    79 | /     fn cb_bf_getbuffer() -> Option<ffi::getbufferproc> {
    80 | |         unsafe extern "C" fn wrap<T>(
    81 | |             slf: *mut ffi::PyObject,
    82 | |             arg1: *mut ffi::Py_buffer,
    ...  |
    95 | |         Some(wrap::<T>)
    96 | |     }
       | |_____^ cannot specialize default item `cb_bf_getbuffer`
       |
       = note: to specialize, `cb_bf_getbuffer` in the parent `impl` must be marked `default`

    error[E0520]: `methods` specializes an item from a parent `impl`, but that item is not marked `default`
      --> /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/pyo3-0.7.0/src/class/context.rs:61:5
       |
    54 |   impl<T> PyContextProtocolImpl for T {}
       |   -------------------------------------- parent `impl` is here
    ...
    61 | /     fn methods() -> Vec<PyMethodDef> {
    62 | |         let mut methods = Vec::new();
    63 | |
    64 | |         if let Some(def) = <Self as PyContextEnterProtocolImpl>::__enter__() {
    ...  |
    71 | |         methods
    72 | |     }
       | |_____^ cannot specialize default item `methods`
       |
       = note: to specialize, `methods` in the parent `impl` must be marked `default`

    error[E0520]: `tp_descr_get` specializes an item from a parent `impl`, but that item is not marked `default`
      --> /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/pyo3-0.7.0/src/class/descr.rs:83:5
       |
    77 |   impl<'p, T> PyDescrGetProtocolImpl for T where T: PyDescrProtocol<'p> {}
       |   ------------------------------------------------------------------------ parent `impl` is here
    ...
    83 | /     fn tp_descr_get() -> Option<ffi::descrgetfunc> {
    84 | |         py_ternary_func!(
    85 | |             PyDescrGetProtocol,
    86 | |             T::__get__,
    ...  |
    89 | |         )
    90 | |     }
       | |_____^ cannot specialize default item `tp_descr_get`
       |
       = note: to specialize, `tp_descr_get` in the parent `impl` must be marked `default`

    error[E0520]: `tp_descr_set` specializes an item from a parent `impl`, but that item is not marked `default`
       --> /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/pyo3-0.7.0/src/class/descr.rs:103:5
        |
    98  |   impl<'p, T> PyDescrSetProtocolImpl for T where T: PyDescrProtocol<'p> {}
        |   ------------------------------------------------------------------------ parent `impl` is here
    ...
    103 | /     fn tp_descr_set() -> Option<ffi::descrsetfunc> {
    104 | |         py_ternary_func!(
    105 | |             PyDescrSetProtocol,
    106 | |             T::__set__,
    ...   |
    110 | |         )
    111 | |     }
        | |_____^ cannot specialize default item `tp_descr_set`
        |
        = note: to specialize, `tp_descr_set` in the parent `impl` must be marked `default`

    error[E0520]: `methods` specializes an item from a parent `impl`, but that item is not marked `default`
       --> /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/pyo3-0.7.0/src/class/descr.rs:142:5
        |
    136 |   impl<T> PyDescrProtocolImpl for T {}
        |   ------------------------------------ parent `impl` is here
    ...
    142 | /     fn methods() -> Vec<PyMethodDef> {
    143 | |         Vec::new()
    144 | |     }
        | |_____^ cannot specialize default item `methods`
        |
        = note: to specialize, `methods` in the parent `impl` must be marked `default`

    error[E0520]: `tp_as_descr` specializes an item from a parent `impl`, but that item is not marked `default`
       --> /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/pyo3-0.7.0/src/class/descr.rs:145:5
        |
    136 |   impl<T> PyDescrProtocolImpl for T {}
        |   ------------------------------------ parent `impl` is here
    ...
    145 | /     fn tp_as_descr(type_object: &mut ffi::PyTypeObject) {
    146 | |         type_object.tp_descr_get = Self::tp_descr_get();
    147 | |         type_object.tp_descr_set = Self::tp_descr_set();
    148 | |     }
        | |_____^ cannot specialize default item `tp_as_descr`
        |
        = note: to specialize, `tp_as_descr` in the parent `impl` must be marked `default`

    error[E0520]: `update_type_object` specializes an item from a parent `impl`, but that item is not marked `default`
      --> /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/pyo3-0.7.0/src/class/gc.rs:41:5
       |
    35 |   impl<'p, T> PyGCProtocolImpl for T {}
       |   ------------------------------------- parent `impl` is here
    ...
    41 | /     fn update_type_object(type_object: &mut ffi::PyTypeObject) {
    42 | |         type_object.tp_traverse = Self::tp_traverse();
    43 | |         type_object.tp_clear = Self::tp_clear();
    44 | |     }
       | |_____^ cannot specialize default item `update_type_object`
       |
       = note: to specialize, `update_type_object` in the parent `impl` must be marked `default`

    error[E0520]: `tp_traverse` specializes an item from a parent `impl`, but that item is not marked `default`
       --> /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/pyo3-0.7.0/src/class/gc.rs:85:5
        |
    77  |   impl<'p, T> PyGCTraverseProtocolImpl for T where T: PyGCProtocol<'p> {}
        |   ----------------------------------------------------------------------- parent `impl` is here
    ...
    85  | /     fn tp_traverse() -> Option<ffi::traverseproc> {
    86  | |         unsafe extern "C" fn tp_traverse<T>(
    87  | |             slf: *mut ffi::PyObject,
    88  | |             visit: ffi::visitproc,
    ...   |
    109 | |         Some(tp_traverse::<T>)
    110 | |     }
        | |_____^ cannot specialize default item `tp_traverse`
        |
        = note: to specialize, `tp_traverse` in the parent `impl` must be marked `default`

    error[E0520]: `tp_clear` specializes an item from a parent `impl`, but that item is not marked `default`
       --> /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/pyo3-0.7.0/src/class/gc.rs:126:5
        |
    119 |   impl<'p, T> PyGCClearProtocolImpl for T where T: PyGCProtocol<'p> {}
        |   -------------------------------------------------------------------- parent `impl` is here
    ...
    126 | /     fn tp_clear() -> Option<ffi::inquiry> {
    127 | |         unsafe extern "C" fn tp_clear<T>(slf: *mut ffi::PyObject) -> c_int
    128 | |         where
    129 | |             T: for<'p> PyGCClearProtocol<'p>,
    ...   |
    138 | |         Some(tp_clear::<T>)
    139 | |     }
        | |_____^ cannot specialize default item `tp_clear`
        |
        = note: to specialize, `tp_clear` in the parent `impl` must be marked `default`

    error[E0520]: `tp_as_iter` specializes an item from a parent `impl`, but that item is not marked `default`
      --> /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/pyo3-0.7.0/src/class/iter.rs:58:5
       |
    51 |   impl<T> PyIterProtocolImpl for T {}
       |   ----------------------------------- parent `impl` is here
    ...
    58 | /     fn tp_as_iter(typeob: &mut ffi::PyTypeObject) {
    59 | |         typeob.tp_iter = Self::tp_iter();
    60 | |         typeob.tp_iternext = Self::tp_iternext();
    61 | |     }
       | |_____^ cannot specialize default item `tp_as_iter`
       |
       = note: to specialize, `tp_as_iter` in the parent `impl` must be marked `default`

    error[E0520]: `tp_iter` specializes an item from a parent `impl`, but that item is not marked `default`
      --> /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/pyo3-0.7.0/src/class/iter.rs:77:5
       |
    70 |   impl<'p, T> PyIterIterProtocolImpl for T where T: PyIterProtocol<'p> {}
       |   ----------------------------------------------------------------------- parent `impl` is here
    ...
    77 | /     fn tp_iter() -> Option<ffi::getiterfunc> {
    78 | |         py_unary_pyref_func!(
    79 | |             PyIterIterProtocol,
    80 | |             T::__iter__,
    ...  |
    83 | |         )
    84 | |     }
       | |_____^ cannot specialize default item `tp_iter`
       |
       = note: to specialize, `tp_iter` in the parent `impl` must be marked `default`

    error[E0520]: `tp_iternext` specializes an item from a parent `impl`, but that item is not marked `default`
       --> /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/pyo3-0.7.0/src/class/iter.rs:100:5
        |
    93  |   impl<'p, T> PyIterNextProtocolImpl for T where T: PyIterProtocol<'p> {}
        |   ----------------------------------------------------------------------- parent `impl` is here
    ...
    100 | /     fn tp_iternext() -> Option<ffi::iternextfunc> {
    101 | |         py_unary_pyref_func!(
    102 | |             PyIterNextProtocol,
    103 | |             T::__next__,
    ...   |
    106 | |         )
    107 | |     }
        | |_____^ cannot specialize default item `tp_iternext`
        |
        = note: to specialize, `tp_iternext` in the parent `impl` must be marked `default`

    error[E0520]: `tp_as_mapping` specializes an item from a parent `impl`, but that item is not marked `default`
       --> /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/pyo3-0.7.0/src/class/mapping.rs:124:5
        |
    117 |   impl<T> PyMappingProtocolImpl for T {}
        |   -------------------------------------- parent `impl` is here
    ...
    124 | /     fn tp_as_mapping() -> Option<ffi::PyMappingMethods> {
    125 | |         let f = if let Some(df) = Self::mp_del_subscript() {
    126 | |             Some(df)
    127 | |         } else {
    ...   |
    135 | |         })
    136 | |     }
        | |_____^ cannot specialize default item `tp_as_mapping`
        |
        = note: to specialize, `tp_as_mapping` in the parent `impl` must be marked `default`

    error[E0520]: `methods` specializes an item from a parent `impl`, but that item is not marked `default`
       --> /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/pyo3-0.7.0/src/class/mapping.rs:139:5
        |
    117 |   impl<T> PyMappingProtocolImpl for T {}
        |   -------------------------------------- parent `impl` is here
    ...
    139 | /     fn methods() -> Vec<PyMethodDef> {
    140 | |         let mut methods = Vec::new();
    141 | |
    142 | |         if let Some(def) = <Self as PyMappingIterProtocolImpl>::__iter__() {
    ...   |
    152 | |         methods
    153 | |     }
        | |_____^ cannot specialize default item `methods`
        |
        = note: to specialize, `methods` in the parent `impl` must be marked `default`

    error[E0520]: `mp_length` specializes an item from a parent `impl`, but that item is not marked `default`
       --> /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/pyo3-0.7.0/src/class/mapping.rs:169:5
        |
    162 |   impl<'p, T> PyMappingLenProtocolImpl for T where T: PyMappingProtocol<'p> {}
        |   ---------------------------------------------------------------------------- parent `impl` is here
    ...
    169 | /     fn mp_length() -> Option<ffi::lenfunc> {
    170 | |         py_len_func!(PyMappingLenProtocol, T::__len__, LenResultConverter)
    171 | |     }
        | |_____^ cannot specialize default item `mp_length`
        |
        = note: to specialize, `mp_length` in the parent `impl` must be marked `default`

    error[E0520]: `mp_subscript` specializes an item from a parent `impl`, but that item is not marked `default`
       --> /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/pyo3-0.7.0/src/class/mapping.rs:187:5
        |
    180 |   impl<'p, T> PyMappingGetItemProtocolImpl for T where T: PyMappingProtocol<'p> {}
        |   -------------------------------------------------------------------------------- parent `impl` is here
    ...
    187 | /     fn mp_subscript() -> Option<ffi::binaryfunc> {
    188 | |         py_binary_func!(
    189 | |             PyMappingGetItemProtocol,
    190 | |             T::__getitem__,
    ...   |
    193 | |         )
    194 | |     }
        | |_____^ cannot specialize default item `mp_subscript`
        |
        = note: to specialize, `mp_subscript` in the parent `impl` must be marked `default`

    error[E0520]: `mp_ass_subscript` specializes an item from a parent `impl`, but that item is not marked `default`
       --> /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/pyo3-0.7.0/src/class/mapping.rs:210:5
        |
    203 |   impl<'p, T> PyMappingSetItemProtocolImpl for T where T: PyMappingProtocol<'p> {}
        |   -------------------------------------------------------------------------------- parent `impl` is here
    ...
    210 | /     fn mp_ass_subscript() -> Option<ffi::objobjargproc> {
    211 | |         py_func_set!(PyMappingSetItemProtocol, T, __setitem__)
    212 | |     }
        | |_____^ cannot specialize default item `mp_ass_subscript`
        |
        = note: to specialize, `mp_ass_subscript` in the parent `impl` must be marked `default`

    error[E0520]: `det_set_dispatch` specializes an item from a parent `impl`, but that item is not marked `default`
       --> /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/pyo3-0.7.0/src/class/mapping.rs:238:5
        |
    232 |   impl<T> DelSetItemDispatch for T where T: Sized + for<'p> PyMappingDelItemProtocol<'p> {}
        |   ----------------------------------------------------------------------------------------- parent `impl` is here
    ...
    238 | /     fn det_set_dispatch() -> Option<ffi::objobjargproc> {
    239 | |         py_func_set_del!(
    240 | |             PyMappingSetItemProtocol,
    241 | |             PyMappingDelItemProtocol,
    ...   |
    245 | |         )
    246 | |     }
        | |_____^ cannot specialize default item `det_set_dispatch`
        |
        = note: to specialize, `det_set_dispatch` in the parent `impl` must be marked `default`

    error[E0520]: `mp_del_subscript` specializes an item from a parent `impl`, but that item is not marked `default`
       --> /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/pyo3-0.7.0/src/class/mapping.rs:253:5
        |
    223 |   impl<'p, T> DeplItemDipatch for T where T: PyMappingProtocol<'p> {}
        |   ------------------------------------------------------------------- parent `impl` is here
    ...
    253 | /     fn mp_del_subscript() -> Option<ffi::objobjargproc> {
    254 | |         <T as DelSetItemDispatch>::det_set_dispatch()
    255 | |     }
        | |_____^ cannot specialize default item `mp_del_subscript`
        |
        = note: to specialize, `mp_del_subscript` in the parent `impl` must be marked `default`

    error[E0520]: `tp_as_number` specializes an item from a parent `impl`, but that item is not marked `default`
       --> /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/pyo3-0.7.0/src/class/number.rs:647:5
        |
    641 |   impl<'p, T> PyNumberProtocolImpl for T {}
        |   ----------------------------------------- parent `impl` is here
    ...
    647 | /     fn tp_as_number() -> Option<ffi::PyNumberMethods> {
    648 | |         Some(ffi::PyNumberMethods {
    649 | |             nb_add: Self::nb_add(),
    650 | |             nb_subtract: Self::nb_subtract(),
    ...   |
    685 | |         })
    686 | |     }
        | |_____^ cannot specialize default item `tp_as_number`
        |
        = note: to specialize, `tp_as_number` in the parent `impl` must be marked `default`

    error[E0520]: `methods` specializes an item from a parent `impl`, but that item is not marked `default`
       --> /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/pyo3-0.7.0/src/class/number.rs:689:5
        |
    641 |   impl<'p, T> PyNumberProtocolImpl for T {}
        |   ----------------------------------------- parent `impl` is here
    ...
    689 | /     fn methods() -> Vec<PyMethodDef> {
    690 | |         let mut methods = Vec::new();
    691 | |
    692 | |         if let Some(def) = <Self as PyNumberRAddProtocolImpl>::__radd__() {
    ...   |
    741 | |         methods
    742 | |     }
        | |_____^ cannot specialize default item `methods`
        |
        = note: to specialize, `methods` in the parent `impl` must be marked `default`

    error[E0520]: `nb_add` specializes an item from a parent `impl`, but that item is not marked `default`
       --> /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/pyo3-0.7.0/src/class/number.rs:757:5
        |
    751 |   impl<'p, T> PyNumberAddProtocolImpl for T where T: PyNumberProtocol<'p> {}
        |   -------------------------------------------------------------------------- parent `impl` is here
    ...
    757 | /     fn nb_add() -> Option<ffi::binaryfunc> {
    758 | |         py_binary_num_func!(
    759 | |             PyNumberAddProtocol,
    760 | |             T::__add__,
    ...   |
    763 | |         )
    764 | |     }
        | |_____^ cannot specialize default item `nb_add`
        |
        = note: to specialize, `nb_add` in the parent `impl` must be marked `default`

    error[E0520]: `nb_subtract` specializes an item from a parent `impl`, but that item is not marked `default`
       --> /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/pyo3-0.7.0/src/class/number.rs:779:5
        |
    773 |   impl<'p, T> PyNumberSubProtocolImpl for T where T: PyNumberProtocol<'p> {}
        |   -------------------------------------------------------------------------- parent `impl` is here
    ...
    779 | /     fn nb_subtract() -> Option<ffi::binaryfunc> {
    780 | |         py_binary_num_func!(
    781 | |             PyNumberSubProtocol,
    782 | |             T::__sub__,
    ...   |
    785 | |         )
    786 | |     }
        | |_____^ cannot specialize default item `nb_subtract`
        |
        = note: to specialize, `nb_subtract` in the parent `impl` must be marked `default`

    error[E0520]: `nb_multiply` specializes an item from a parent `impl`, but that item is not marked `default`
       --> /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/pyo3-0.7.0/src/class/number.rs:801:5
        |
    795 |   impl<'p, T> PyNumberMulProtocolImpl for T where T: PyNumberProtocol<'p> {}
        |   -------------------------------------------------------------------------- parent `impl` is here
    ...
    801 | /     fn nb_multiply() -> Option<ffi::binaryfunc> {
    802 | |         py_binary_num_func!(
    803 | |             PyNumberMulProtocol,
    804 | |             T::__mul__,
    ...   |
    807 | |         )
    808 | |     }
        | |_____^ cannot specialize default item `nb_multiply`
        |
        = note: to specialize, `nb_multiply` in the parent `impl` must be marked `default`

    error[E0520]: `nb_matrix_multiply` specializes an item from a parent `impl`, but that item is not marked `default`
       --> /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/pyo3-0.7.0/src/class/number.rs:823:5
        |
    817 |   impl<'p, T> PyNumberMatmulProtocolImpl for T where T: PyNumberProtocol<'p> {}
        |   ----------------------------------------------------------------------------- parent `impl` is here
    ...
    823 | /     fn nb_matrix_multiply() -> Option<ffi::binaryfunc> {
    824 | |         py_binary_num_func!(
    825 | |             PyNumberMatmulProtocol,
    826 | |             T::__matmul__,
    ...   |
    829 | |         )
    830 | |     }
        | |_____^ cannot specialize default item `nb_matrix_multiply`
        |
        = note: to specialize, `nb_matrix_multiply` in the parent `impl` must be marked `default`

    error[E0520]: `nb_true_divide` specializes an item from a parent `impl`, but that item is not marked `default`
       --> /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/pyo3-0.7.0/src/class/number.rs:845:5
        |
    839 |   impl<'p, T> PyNumberTruedivProtocolImpl for T where T: PyNumberProtocol<'p> {}
        |   ------------------------------------------------------------------------------ parent `impl` is here
    ...
    845 | /     fn nb_true_divide() -> Option<ffi::binaryfunc> {
    846 | |         py_binary_num_func!(
    847 | |             PyNumberTruedivProtocol,
    848 | |             T::__truediv__,
    ...   |
    851 | |         )
    852 | |     }
        | |_____^ cannot specialize default item `nb_true_divide`
        |
        = note: to specialize, `nb_true_divide` in the parent `impl` must be marked `default`

    error[E0520]: `nb_floor_divide` specializes an item from a parent `impl`, but that item is not marked `default`
       --> /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/pyo3-0.7.0/src/class/number.rs:867:5
        |
    861 |   impl<'p, T> PyNumberFloordivProtocolImpl for T where T: PyNumberProtocol<'p> {}
        |   ------------------------------------------------------------------------------- parent `impl` is here
    ...
    867 | /     fn nb_floor_divide() -> Option<ffi::binaryfunc> {
    868 | |         py_binary_num_func!(
    869 | |             PyNumberFloordivProtocol,
    870 | |             T::__floordiv__,
    ...   |
    873 | |         )
    874 | |     }
        | |_____^ cannot specialize default item `nb_floor_divide`
        |
        = note: to specialize, `nb_floor_divide` in the parent `impl` must be marked `default`

    error[E0520]: `nb_remainder` specializes an item from a parent `impl`, but that item is not marked `default`
       --> /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/pyo3-0.7.0/src/class/number.rs:889:5
        |
    883 |   impl<'p, T> PyNumberModProtocolImpl for T where T: PyNumberProtocol<'p> {}
        |   -------------------------------------------------------------------------- parent `impl` is here
    ...
    889 | /     fn nb_remainder() -> Option<ffi::binaryfunc> {
    890 | |         py_binary_num_func!(
    891 | |             PyNumberModProtocol,
    892 | |             T::__mod__,
    ...   |
    895 | |         )
    896 | |     }
        | |_____^ cannot specialize default item `nb_remainder`
        |
        = note: to specialize, `nb_remainder` in the parent `impl` must be marked `default`

    error[E0520]: `nb_divmod` specializes an item from a parent `impl`, but that item is not marked `default`
       --> /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/pyo3-0.7.0/src/class/number.rs:911:5
        |
    905 |   impl<'p, T> PyNumberDivmodProtocolImpl for T where T: PyNumberProtocol<'p> {}
        |   ----------------------------------------------------------------------------- parent `impl` is here
    ...
    911 | /     fn nb_divmod() -> Option<ffi::binaryfunc> {
    912 | |         py_binary_num_func!(
    913 | |             PyNumberDivmodProtocol,
    914 | |             T::__divmod__,
    ...   |
    917 | |         )
    918 | |     }
        | |_____^ cannot specialize default item `nb_divmod`
        |
        = note: to specialize, `nb_divmod` in the parent `impl` must be marked `default`

    error[E0520]: `nb_power` specializes an item from a parent `impl`, but that item is not marked `default`
       --> /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/pyo3-0.7.0/src/class/number.rs:933:5
        |
    927 |   impl<'p, T> PyNumberPowProtocolImpl for T where T: PyNumberProtocol<'p> {}
        |   -------------------------------------------------------------------------- parent `impl` is here
    ...
    933 | /     fn nb_power() -> Option<ffi::ternaryfunc> {
    934 | |         py_ternary_num_func!(
    935 | |             PyNumberPowProtocol,
    936 | |             T::__pow__,
    ...   |
    939 | |         )
    940 | |     }
        | |_____^ cannot specialize default item `nb_power`
        |
        = note: to specialize, `nb_power` in the parent `impl` must be marked `default`

    error[E0520]: `nb_lshift` specializes an item from a parent `impl`, but that item is not marked `default`
       --> /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/pyo3-0.7.0/src/class/number.rs:955:5
        |
    949 |   impl<'p, T> PyNumberLShiftProtocolImpl for T where T: PyNumberProtocol<'p> {}
        |   ----------------------------------------------------------------------------- parent `impl` is here
    ...
    955 | /     fn nb_lshift() -> Option<ffi::binaryfunc> {
    956 | |         py_binary_num_func!(
    957 | |             PyNumberLShiftProtocol,
    958 | |             T::__lshift__,
    ...   |
    961 | |         )
    962 | |     }
        | |_____^ cannot specialize default item `nb_lshift`
        |
        = note: to specialize, `nb_lshift` in the parent `impl` must be marked `default`

    error[E0520]: `nb_rshift` specializes an item from a parent `impl`, but that item is not marked `default`
       --> /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/pyo3-0.7.0/src/class/number.rs:977:5
        |
    971 |   impl<'p, T> PyNumberRShiftProtocolImpl for T where T: PyNumberProtocol<'p> {}
        |   ----------------------------------------------------------------------------- parent `impl` is here
    ...
    977 | /     fn nb_rshift() -> Option<ffi::binaryfunc> {
    978 | |         py_binary_num_func!(
    979 | |             PyNumberRShiftProtocol,
    980 | |             T::__rshift__,
    ...   |
    983 | |         )
    984 | |     }
        | |_____^ cannot specialize default item `nb_rshift`
        |
        = note: to specialize, `nb_rshift` in the parent `impl` must be marked `default`

    error[E0520]: `nb_and` specializes an item from a parent `impl`, but that item is not marked `default`
        --> /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/pyo3-0.7.0/src/class/number.rs:999:5
         |
    993  |   impl<'p, T> PyNumberAndProtocolImpl for T where T: PyNumberProtocol<'p> {}
         |   -------------------------------------------------------------------------- parent `impl` is here
    ...
    999  | /     fn nb_and() -> Option<ffi::binaryfunc> {
    1000 | |         py_binary_num_func!(
    1001 | |             PyNumberAndProtocol,
    1002 | |             T::__and__,
    ...    |
    1005 | |         )
    1006 | |     }
         | |_____^ cannot specialize default item `nb_and`
         |
         = note: to specialize, `nb_and` in the parent `impl` must be marked `default`

    error[E0520]: `nb_xor` specializes an item from a parent `impl`, but that item is not marked `default`
        --> /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/pyo3-0.7.0/src/class/number.rs:1021:5
         |
    1015 |   impl<'p, T> PyNumberXorProtocolImpl for T where T: PyNumberProtocol<'p> {}
         |   -------------------------------------------------------------------------- parent `impl` is here
    ...
    1021 | /     fn nb_xor() -> Option<ffi::binaryfunc> {
    1022 | |         py_binary_num_func!(
    1023 | |             PyNumberXorProtocol,
    1024 | |             T::__xor__,
    ...    |
    1027 | |         )
    1028 | |     }
         | |_____^ cannot specialize default item `nb_xor`
         |
         = note: to specialize, `nb_xor` in the parent `impl` must be marked `default`

    error[E0520]: `nb_or` specializes an item from a parent `impl`, but that item is not marked `default`
        --> /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/pyo3-0.7.0/src/class/number.rs:1043:5
         |
    1037 |   impl<'p, T> PyNumberOrProtocolImpl for T where T: PyNumberProtocol<'p> {}
         |   ------------------------------------------------------------------------- parent `impl` is here
    ...
    1043 | /     fn nb_or() -> Option<ffi::binaryfunc> {
    1044 | |         py_binary_num_func!(
    1045 | |             PyNumberOrProtocol,
    1046 | |             T::__or__,
    ...    |
    1049 | |         )
    1050 | |     }
         | |_____^ cannot specialize default item `nb_or`
         |
         = note: to specialize, `nb_or` in the parent `impl` must be marked `default`

    error[E0520]: `nb_inplace_add` specializes an item from a parent `impl`, but that item is not marked `default`
        --> /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/pyo3-0.7.0/src/class/number.rs:1065:5
         |
    1059 |   impl<'p, T> PyNumberIAddProtocolImpl for T where T: PyNumberProtocol<'p> {}
         |   --------------------------------------------------------------------------- parent `impl` is here
    ...
    1065 | /     fn nb_inplace_add() -> Option<ffi::binaryfunc> {
    1066 | |         py_binary_self_func!(PyNumberIAddProtocol, T::__iadd__)
    1067 | |     }
         | |_____^ cannot specialize default item `nb_inplace_add`
         |
         = note: to specialize, `nb_inplace_add` in the parent `impl` must be marked `default`

    error[E0520]: `nb_inplace_subtract` specializes an item from a parent `impl`, but that item is not marked `default`
        --> /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/pyo3-0.7.0/src/class/number.rs:1082:5
         |
    1076 |   impl<'p, T> PyNumberISubProtocolImpl for T where T: PyNumberProtocol<'p> {}
         |   --------------------------------------------------------------------------- parent `impl` is here
    ...
    1082 | /     fn nb_inplace_subtract() -> Option<ffi::binaryfunc> {
    1083 | |         py_binary_self_func!(PyNumberISubProtocol, T::__isub__)
    1084 | |     }
         | |_____^ cannot specialize default item `nb_inplace_subtract`
         |
         = note: to specialize, `nb_inplace_subtract` in the parent `impl` must be marked `default`

    error[E0520]: `nb_inplace_multiply` specializes an item from a parent `impl`, but that item is not marked `default`
        --> /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/pyo3-0.7.0/src/class/number.rs:1099:5
         |
    1093 |   impl<'p, T> PyNumberIMulProtocolImpl for T where T: PyNumberProtocol<'p> {}
         |   --------------------------------------------------------------------------- parent `impl` is here
    ...
    1099 | /     fn nb_inplace_multiply() -> Option<ffi::binaryfunc> {
    1100 | |         py_binary_self_func!(PyNumberIMulProtocol, T::__imul__)
    1101 | |     }
         | |_____^ cannot specialize default item `nb_inplace_multiply`
         |
         = note: to specialize, `nb_inplace_multiply` in the parent `impl` must be marked `default`

    error[E0520]: `nb_inplace_matrix_multiply` specializes an item from a parent `impl`, but that item is not marked `default`
        --> /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/pyo3-0.7.0/src/class/number.rs:1116:5
         |
    1110 |   impl<'p, T> PyNumberIMatmulProtocolImpl for T where T: PyNumberProtocol<'p> {}
         |   ------------------------------------------------------------------------------ parent `impl` is here
    ...
    1116 | /     fn nb_inplace_matrix_multiply() -> Option<ffi::binaryfunc> {
    1117 | |         py_binary_self_func!(PyNumberIMatmulProtocol, T::__imatmul__)
    1118 | |     }
         | |_____^ cannot specialize default item `nb_inplace_matrix_multiply`
         |
         = note: to specialize, `nb_inplace_matrix_multiply` in the parent `impl` must be marked `default`

    error[E0520]: `nb_inplace_true_divide` specializes an item from a parent `impl`, but that item is not marked `default`
        --> /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/pyo3-0.7.0/src/class/number.rs:1133:5
         |
    1127 |   impl<'p, T> PyNumberITruedivProtocolImpl for T where T: PyNumberProtocol<'p> {}
         |   ------------------------------------------------------------------------------- parent `impl` is here
    ...
    1133 | /     fn nb_inplace_true_divide() -> Option<ffi::binaryfunc> {
    1134 | |         py_binary_self_func!(PyNumberITruedivProtocol, T::__itruediv__)
    1135 | |     }
         | |_____^ cannot specialize default item `nb_inplace_true_divide`
         |
         = note: to specialize, `nb_inplace_true_divide` in the parent `impl` must be marked `default`

    error[E0520]: `nb_inplace_floor_divide` specializes an item from a parent `impl`, but that item is not marked `default`
        --> /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/pyo3-0.7.0/src/class/number.rs:1150:5
         |
    1144 |   impl<'p, T> PyNumberIFloordivProtocolImpl for T where T: PyNumberProtocol<'p> {}
         |   -------------------------------------------------------------------------------- parent `impl` is here
    ...
    1150 | /     fn nb_inplace_floor_divide() -> Option<ffi::binaryfunc> {
    1151 | |         py_binary_self_func!(PyNumberIFloordivProtocol, T::__ifloordiv__)
    1152 | |     }
         | |_____^ cannot specialize default item `nb_inplace_floor_divide`
         |
         = note: to specialize, `nb_inplace_floor_divide` in the parent `impl` must be marked `default`

    error[E0520]: `nb_inplace_remainder` specializes an item from a parent `impl`, but that item is not marked `default`
        --> /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/pyo3-0.7.0/src/class/number.rs:1167:5
         |
    1161 |   impl<'p, T> PyNumberIModProtocolImpl for T where T: PyNumberProtocol<'p> {}
         |   --------------------------------------------------------------------------- parent `impl` is here
    ...
    1167 | /     fn nb_inplace_remainder() -> Option<ffi::binaryfunc> {
    1168 | |         py_binary_self_func!(PyNumberIModProtocol, T::__imod__)
    1169 | |     }
         | |_____^ cannot specialize default item `nb_inplace_remainder`
         |
         = note: to specialize, `nb_inplace_remainder` in the parent `impl` must be marked `default`

    error[E0520]: `nb_inplace_power` specializes an item from a parent `impl`, but that item is not marked `default`
        --> /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/pyo3-0.7.0/src/class/number.rs:1184:5
         |
    1178 |   impl<'p, T> PyNumberIPowProtocolImpl for T where T: PyNumberProtocol<'p> {}
         |   --------------------------------------------------------------------------- parent `impl` is here
    ...
    1184 | /     fn nb_inplace_power() -> Option<ffi::ternaryfunc> {
    1185 | |         py_ternary_self_func!(PyNumberIPowProtocol, T::__ipow__)
    1186 | |     }
         | |_____^ cannot specialize default item `nb_inplace_power`
         |
         = note: to specialize, `nb_inplace_power` in the parent `impl` must be marked `default`

    error[E0520]: `nb_inplace_lshift` specializes an item from a parent `impl`, but that item is not marked `default`
        --> /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/pyo3-0.7.0/src/class/number.rs:1201:5
         |
    1195 |   impl<'p, T> PyNumberILShiftProtocolImpl for T where T: PyNumberProtocol<'p> {}
         |   ------------------------------------------------------------------------------ parent `impl` is here
    ...
    1201 | /     fn nb_inplace_lshift() -> Option<ffi::binaryfunc> {
    1202 | |         py_binary_self_func!(PyNumberILShiftProtocol, T::__ilshift__)
    1203 | |     }
         | |_____^ cannot specialize default item `nb_inplace_lshift`
         |
         = note: to specialize, `nb_inplace_lshift` in the parent `impl` must be marked `default`

    error[E0520]: `nb_inplace_rshift` specializes an item from a parent `impl`, but that item is not marked `default`
        --> /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/pyo3-0.7.0/src/class/number.rs:1218:5
         |
    1212 |   impl<'p, T> PyNumberIRShiftProtocolImpl for T where T: PyNumberProtocol<'p> {}
         |   ------------------------------------------------------------------------------ parent `impl` is here
    ...
    1218 | /     fn nb_inplace_rshift() -> Option<ffi::binaryfunc> {
    1219 | |         py_binary_self_func!(PyNumberIRShiftProtocol, T::__irshift__)
    1220 | |     }
         | |_____^ cannot specialize default item `nb_inplace_rshift`
         |
         = note: to specialize, `nb_inplace_rshift` in the parent `impl` must be marked `default`

    error[E0520]: `nb_inplace_and` specializes an item from a parent `impl`, but that item is not marked `default`
        --> /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/pyo3-0.7.0/src/class/number.rs:1235:5
         |
    1229 |   impl<'p, T> PyNumberIAndProtocolImpl for T where T: PyNumberProtocol<'p> {}
         |   --------------------------------------------------------------------------- parent `impl` is here
    ...
    1235 | /     fn nb_inplace_and() -> Option<ffi::binaryfunc> {
    1236 | |         py_binary_self_func!(PyNumberIAndProtocol, T::__iand__)
    1237 | |     }
         | |_____^ cannot specialize default item `nb_inplace_and`
         |
         = note: to specialize, `nb_inplace_and` in the parent `impl` must be marked `default`

    error[E0520]: `nb_inplace_xor` specializes an item from a parent `impl`, but that item is not marked `default`
        --> /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/pyo3-0.7.0/src/class/number.rs:1252:5
         |
    1246 |   impl<'p, T> PyNumberIXorProtocolImpl for T where T: PyNumberProtocol<'p> {}
         |   --------------------------------------------------------------------------- parent `impl` is here
    ...
    1252 | /     fn nb_inplace_xor() -> Option<ffi::binaryfunc> {
    1253 | |         py_binary_self_func!(PyNumberIXorProtocol, T::__ixor__)
    1254 | |     }
         | |_____^ cannot specialize default item `nb_inplace_xor`
         |
         = note: to specialize, `nb_inplace_xor` in the parent `impl` must be marked `default`

    error[E0520]: `nb_inplace_or` specializes an item from a parent `impl`, but that item is not marked `default`
        --> /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/pyo3-0.7.0/src/class/number.rs:1269:5
         |
    1263 |   impl<'p, T> PyNumberIOrProtocolImpl for T where T: PyNumberProtocol<'p> {}
         |   -------------------------------------------------------------------------- parent `impl` is here
    ...
    1269 | /     fn nb_inplace_or() -> Option<ffi::binaryfunc> {
    1270 | |         py_binary_self_func!(PyNumberIOrProtocol, T::__ior__)
    1271 | |     }
         | |_____^ cannot specialize default item `nb_inplace_or`
         |
         = note: to specialize, `nb_inplace_or` in the parent `impl` must be marked `default`

    error[E0520]: `nb_negative` specializes an item from a parent `impl`, but that item is not marked `default`
        --> /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/pyo3-0.7.0/src/class/number.rs:1399:5
         |
    1392 |   impl<'p, T> PyNumberNegProtocolImpl for T where T: PyNumberProtocol<'p> {}
         |   -------------------------------------------------------------------------- parent `impl` is here
    ...
    1399 | /     fn nb_negative() -> Option<ffi::unaryfunc> {
    1400 | |         py_unary_func!(
    1401 | |             PyNumberNegProtocol,
    1402 | |             T::__neg__,
    ...    |
    1405 | |         )
    1406 | |     }
         | |_____^ cannot specialize default item `nb_negative`
         |
         = note: to specialize, `nb_negative` in the parent `impl` must be marked `default`

    error[E0520]: `nb_positive` specializes an item from a parent `impl`, but that item is not marked `default`
        --> /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/pyo3-0.7.0/src/class/number.rs:1421:5
         |
    1415 |   impl<'p, T> PyNumberPosProtocolImpl for T where T: PyNumberProtocol<'p> {}
         |   -------------------------------------------------------------------------- parent `impl` is here
    ...
    1421 | /     fn nb_positive() -> Option<ffi::unaryfunc> {
    1422 | |         py_unary_func!(
    1423 | |             PyNumberPosProtocol,
    1424 | |             T::__pos__,
    ...    |
    1427 | |         )
    1428 | |     }
         | |_____^ cannot specialize default item `nb_positive`
         |
         = note: to specialize, `nb_positive` in the parent `impl` must be marked `default`

    error[E0520]: `nb_absolute` specializes an item from a parent `impl`, but that item is not marked `default`
        --> /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/pyo3-0.7.0/src/class/number.rs:1443:5
         |
    1437 |   impl<'p, T> PyNumberAbsProtocolImpl for T where T: PyNumberProtocol<'p> {}
         |   -------------------------------------------------------------------------- parent `impl` is here
    ...
    1443 | /     fn nb_absolute() -> Option<ffi::unaryfunc> {
    1444 | |         py_unary_func!(
    1445 | |             PyNumberAbsProtocol,
    1446 | |             T::__abs__,
    ...    |
    1449 | |         )
    1450 | |     }
         | |_____^ cannot specialize default item `nb_absolute`
         |
         = note: to specialize, `nb_absolute` in the parent `impl` must be marked `default`

    error[E0520]: `nb_invert` specializes an item from a parent `impl`, but that item is not marked `default`
        --> /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/pyo3-0.7.0/src/class/number.rs:1465:5
         |
    1459 |   impl<'p, T> PyNumberInvertProtocolImpl for T where T: PyNumberProtocol<'p> {}
         |   ----------------------------------------------------------------------------- parent `impl` is here
    ...
    1465 | /     fn nb_invert() -> Option<ffi::unaryfunc> {
    1466 | |         py_unary_func!(
    1467 | |             PyNumberInvertProtocol,
    1468 | |             T::__invert__,
    ...    |
    1471 | |         )
    1472 | |     }
         | |_____^ cannot specialize default item `nb_invert`
         |
         = note: to specialize, `nb_invert` in the parent `impl` must be marked `default`

    error[E0520]: `nb_int` specializes an item from a parent `impl`, but that item is not marked `default`
        --> /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/pyo3-0.7.0/src/class/number.rs:1487:5
         |
    1481 |   impl<'p, T> PyNumberIntProtocolImpl for T where T: PyNumberProtocol<'p> {}
         |   -------------------------------------------------------------------------- parent `impl` is here
    ...
    1487 | /     fn nb_int() -> Option<ffi::unaryfunc> {
    1488 | |         py_unary_func!(
    1489 | |             PyNumberIntProtocol,
    1490 | |             T::__int__,
    ...    |
    1493 | |         )
    1494 | |     }
         | |_____^ cannot specialize default item `nb_int`
         |
         = note: to specialize, `nb_int` in the parent `impl` must be marked `default`

    error[E0520]: `nb_float` specializes an item from a parent `impl`, but that item is not marked `default`
        --> /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/pyo3-0.7.0/src/class/number.rs:1509:5
         |
    1503 |   impl<'p, T> PyNumberFloatProtocolImpl for T where T: PyNumberProtocol<'p> {}
         |   ---------------------------------------------------------------------------- parent `impl` is here
    ...
    1509 | /     fn nb_float() -> Option<ffi::unaryfunc> {
    1510 | |         py_unary_func!(
    1511 | |             PyNumberFloatProtocol,
    1512 | |             T::__float__,
    ...    |
    1515 | |         )
    1516 | |     }
         | |_____^ cannot specialize default item `nb_float`
         |
         = note: to specialize, `nb_float` in the parent `impl` must be marked `default`

    error[E0520]: `nb_index` specializes an item from a parent `impl`, but that item is not marked `default`
        --> /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/pyo3-0.7.0/src/class/number.rs:1531:5
         |
    1525 |   impl<'p, T> PyNumberIndexProtocolImpl for T where T: PyNumberProtocol<'p> {}
         |   ---------------------------------------------------------------------------- parent `impl` is here
    ...
    1531 | /     fn nb_index() -> Option<ffi::unaryfunc> {
    1532 | |         py_unary_func!(
    1533 | |             PyNumberIndexProtocol,
    1534 | |             T::__index__,
    ...    |
    1537 | |         )
    1538 | |     }
         | |_____^ cannot specialize default item `nb_index`
         |
         = note: to specialize, `nb_index` in the parent `impl` must be marked `default`

    error[E0520]: `tp_as_async` specializes an item from a parent `impl`, but that item is not marked `default`
       --> /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/pyo3-0.7.0/src/class/pyasync.rs:109:5
        |
    102 |   impl<T> PyAsyncProtocolImpl for T {}
        |   ------------------------------------ parent `impl` is here
    ...
    109 | /     fn tp_as_async() -> Option<ffi::PyAsyncMethods> {
    110 | |         Some(ffi::PyAsyncMethods {
    111 | |             am_await: Self::am_await(),
    112 | |             am_aiter: Self::am_aiter(),
    113 | |             am_anext: Self::am_anext(),
    114 | |         })
    115 | |     }
        | |_____^ cannot specialize default item `tp_as_async`
        |
        = note: to specialize, `tp_as_async` in the parent `impl` must be marked `default`

    error[E0520]: `methods` specializes an item from a parent `impl`, but that item is not marked `default`
       --> /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/pyo3-0.7.0/src/class/pyasync.rs:118:5
        |
    102 |   impl<T> PyAsyncProtocolImpl for T {}
        |   ------------------------------------ parent `impl` is here
    ...
    118 | /     fn methods() -> Vec<PyMethodDef> {
    119 | |         let mut methods = Vec::new();
    120 | |
    121 | |         if let Some(def) = <Self as PyAsyncAenterProtocolImpl>::__aenter__() {
    ...   |
    128 | |         methods
    129 | |     }
        | |_____^ cannot specialize default item `methods`
        |
        = note: to specialize, `methods` in the parent `impl` must be marked `default`

    error[E0520]: `am_await` specializes an item from a parent `impl`, but that item is not marked `default`
       --> /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/pyo3-0.7.0/src/class/pyasync.rs:145:5
        |
    138 |   impl<'p, T> PyAsyncAwaitProtocolImpl for T where T: PyAsyncProtocol<'p> {}
        |   -------------------------------------------------------------------------- parent `impl` is here
    ...
    145 | /     fn am_await() -> Option<ffi::unaryfunc> {
    146 | |         py_unary_func!(
    147 | |             PyAsyncAwaitProtocol,
    148 | |             T::__await__,
    ...   |
    151 | |         )
    152 | |     }
        | |_____^ cannot specialize default item `am_await`
        |
        = note: to specialize, `am_await` in the parent `impl` must be marked `default`

    error[E0520]: `am_aiter` specializes an item from a parent `impl`, but that item is not marked `default`
       --> /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/pyo3-0.7.0/src/class/pyasync.rs:168:5
        |
    161 |   impl<'p, T> PyAsyncAiterProtocolImpl for T where T: PyAsyncProtocol<'p> {}
        |   -------------------------------------------------------------------------- parent `impl` is here
    ...
    168 | /     fn am_aiter() -> Option<ffi::unaryfunc> {
    169 | |         py_unary_func!(
    170 | |             PyAsyncAiterProtocol,
    171 | |             T::__aiter__,
    ...   |
    174 | |         )
    175 | |     }
        | |_____^ cannot specialize default item `am_aiter`
        |
        = note: to specialize, `am_aiter` in the parent `impl` must be marked `default`

    error[E0520]: `am_anext` specializes an item from a parent `impl`, but that item is not marked `default`
       --> /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/pyo3-0.7.0/src/class/pyasync.rs:224:9
        |
    184 |   impl<'p, T> PyAsyncAnextProtocolImpl for T where T: PyAsyncProtocol<'p> {}
        |   -------------------------------------------------------------------------- parent `impl` is here
    ...
    224 | /         fn am_anext() -> Option<ffi::unaryfunc> {
    225 | |             py_unary_func!(
    226 | |                 PyAsyncAnextProtocol,
    227 | |                 T::__anext__,
    ...   |
    230 | |             )
    231 | |         }
        | |_________^ cannot specialize default item `am_anext`
        |
        = note: to specialize, `am_anext` in the parent `impl` must be marked `default`

    error[E0520]: `tp_as_sequence` specializes an item from a parent `impl`, but that item is not marked `default`
       --> /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/pyo3-0.7.0/src/class/sequence.rs:148:5
        |
    142 |   impl<T> PySequenceProtocolImpl for T {}
        |   --------------------------------------- parent `impl` is here
    ...
    148 | /     fn tp_as_sequence() -> Option<ffi::PySequenceMethods> {
    149 | |         Some(ffi::PySequenceMethods {
    150 | |             sq_length: Self::sq_length(),
    151 | |             sq_concat: Self::sq_concat(),
    ...   |
    160 | |         })
    161 | |     }
        | |_____^ cannot specialize default item `tp_as_sequence`
        |
        = note: to specialize, `tp_as_sequence` in the parent `impl` must be marked `default`

    error[E0520]: `sq_length` specializes an item from a parent `impl`, but that item is not marked `default`
       --> /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/pyo3-0.7.0/src/class/sequence.rs:176:5
        |
    170 |   impl<'p, T> PySequenceLenProtocolImpl for T where T: PySequenceProtocol<'p> {}
        |   ------------------------------------------------------------------------------ parent `impl` is here
    ...
    176 | /     fn sq_length() -> Option<ffi::lenfunc> {
    177 | |         py_len_func!(PySequenceLenProtocol, T::__len__, LenResultConverter)
    178 | |     }
        | |_____^ cannot specialize default item `sq_length`
        |
        = note: to specialize, `sq_length` in the parent `impl` must be marked `default`

    error[E0520]: `sq_item` specializes an item from a parent `impl`, but that item is not marked `default`
       --> /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/pyo3-0.7.0/src/class/sequence.rs:193:5
        |
    187 |   impl<'p, T> PySequenceGetItemProtocolImpl for T where T: PySequenceProtocol<'p> {}
        |   ---------------------------------------------------------------------------------- parent `impl` is here
    ...
    193 | /     fn sq_item() -> Option<ffi::ssizeargfunc> {
    194 | |         py_ssizearg_func!(
    195 | |             PySequenceGetItemProtocol,
    196 | |             T::__getitem__,
    ...   |
    199 | |         )
    200 | |     }
        | |_____^ cannot specialize default item `sq_item`
        |
        = note: to specialize, `sq_item` in the parent `impl` must be marked `default`

    error[E0520]: `sq_ass_item` specializes an item from a parent `impl`, but that item is not marked `default`
       --> /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/pyo3-0.7.0/src/class/sequence.rs:215:5
        |
    209 |   impl<'p, T> PySequenceSetItemProtocolImpl for T where T: PySequenceProtocol<'p> {}
        |   ---------------------------------------------------------------------------------- parent `impl` is here
    ...
    215 | /     fn sq_ass_item() -> Option<ffi::ssizeobjargproc> {
    216 | |         unsafe extern "C" fn wrap<T>(
    217 | |             slf: *mut ffi::PyObject,
    218 | |             key: ffi::Py_ssize_t,
    ...   |
    248 | |         Some(wrap::<T>)
    249 | |     }
        | |_____^ cannot specialize default item `sq_ass_item`
        |
        = note: to specialize, `sq_ass_item` in the parent `impl` must be marked `default`

    error[E0520]: `sq_contains` specializes an item from a parent `impl`, but that item is not marked `default`
       --> /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/pyo3-0.7.0/src/class/sequence.rs:382:5
        |
    376 |   impl<'p, T> PySequenceContainsProtocolImpl for T where T: PySequenceProtocol<'p> {}
        |   ----------------------------------------------------------------------------------- parent `impl` is here
    ...
    382 | /     fn sq_contains() -> Option<ffi::objobjproc> {
    383 | |         py_binary_func!(
    384 | |             PySequenceContainsProtocol,
    385 | |             T::__contains__,
    ...   |
    389 | |         )
    390 | |     }
        | |_____^ cannot specialize default item `sq_contains`
        |
        = note: to specialize, `sq_contains` in the parent `impl` must be marked `default`

    error[E0520]: `sq_concat` specializes an item from a parent `impl`, but that item is not marked `default`
       --> /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/pyo3-0.7.0/src/class/sequence.rs:405:5
        |
    399 |   impl<'p, T> PySequenceConcatProtocolImpl for T where T: PySequenceProtocol<'p> {}
        |   --------------------------------------------------------------------------------- parent `impl` is here
    ...
    405 | /     fn sq_concat() -> Option<ffi::binaryfunc> {
    406 | |         py_binary_func!(
    407 | |             PySequenceConcatProtocol,
    408 | |             T::__concat__,
    ...   |
    411 | |         )
    412 | |     }
        | |_____^ cannot specialize default item `sq_concat`
        |
        = note: to specialize, `sq_concat` in the parent `impl` must be marked `default`

    error[E0520]: `sq_repeat` specializes an item from a parent `impl`, but that item is not marked `default`
       --> /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/pyo3-0.7.0/src/class/sequence.rs:427:5
        |
    421 |   impl<'p, T> PySequenceRepeatProtocolImpl for T where T: PySequenceProtocol<'p> {}
        |   --------------------------------------------------------------------------------- parent `impl` is here
    ...
    427 | /     fn sq_repeat() -> Option<ffi::ssizeargfunc> {
    428 | |         py_ssizearg_func!(
    429 | |             PySequenceRepeatProtocol,
    430 | |             T::__repeat__,
    ...   |
    433 | |         )
    434 | |     }
        | |_____^ cannot specialize default item `sq_repeat`
        |
        = note: to specialize, `sq_repeat` in the parent `impl` must be marked `default`

    error[E0520]: `sq_inplace_concat` specializes an item from a parent `impl`, but that item is not marked `default`
       --> /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/pyo3-0.7.0/src/class/sequence.rs:449:5
        |
    443 |   impl<'p, T> PySequenceInplaceConcatProtocolImpl for T where T: PySequenceProtocol<'p> {}
        |   ---------------------------------------------------------------------------------------- parent `impl` is here
    ...
    449 | /     fn sq_inplace_concat() -> Option<ffi::binaryfunc> {
    450 | |         py_binary_func!(
    451 | |             PySequenceInplaceConcatProtocol,
    452 | |             T::__inplace_concat__,
    ...   |
    455 | |         )
    456 | |     }
        | |_____^ cannot specialize default item `sq_inplace_concat`
        |
        = note: to specialize, `sq_inplace_concat` in the parent `impl` must be marked `default`

    error[E0520]: `sq_inplace_repeat` specializes an item from a parent `impl`, but that item is not marked `default`
       --> /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/pyo3-0.7.0/src/class/sequence.rs:471:5
        |
    465 |   impl<'p, T> PySequenceInplaceRepeatProtocolImpl for T where T: PySequenceProtocol<'p> {}
        |   ---------------------------------------------------------------------------------------- parent `impl` is here
    ...
    471 | /     fn sq_inplace_repeat() -> Option<ffi::ssizeargfunc> {
    472 | |         py_ssizearg_func!(
    473 | |             PySequenceInplaceRepeatProtocol,
    474 | |             T::__inplace_repeat__,
    ...   |
    477 | |         )
    478 | |     }
        | |_____^ cannot specialize default item `sq_inplace_repeat`
        |
        = note: to specialize, `sq_inplace_repeat` in the parent `impl` must be marked `default`

    error[E0520]: `del_item` specializes an item from a parent `impl`, but that item is not marked `default`
       --> /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/pyo3-0.7.0/src/class/sequence.rs:289:9
        |
    283 |       impl<'p, T> DelItem for T where T: PySequenceProtocol<'p> {}
        |       ------------------------------------------------------------ parent `impl` is here
    ...
    289 | /         fn del_item() -> Option<ffi::ssizeobjargproc> {
    290 | |             unsafe extern "C" fn wrap<T>(
    291 | |                 slf: *mut ffi::PyObject,
    292 | |                 key: ffi::Py_ssize_t,
    ...   |
    319 | |             Some(wrap::<T>)
    320 | |         }
        | |_________^ cannot specialize default item `del_item`
        |
        = note: to specialize, `del_item` in the parent `impl` must be marked `default`

    error[E0520]: `del_set_item` specializes an item from a parent `impl`, but that item is not marked `default`
       --> /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/pyo3-0.7.0/src/class/sequence.rs:335:9
        |
    329 |       impl<'p, T> DelSetItem for T where T: PySequenceProtocol<'p> {}
        |       --------------------------------------------------------------- parent `impl` is here
    ...
    335 | /         fn del_set_item() -> Option<ffi::ssizeobjargproc> {
    336 | |             unsafe extern "C" fn wrap<T>(
    337 | |                 slf: *mut ffi::PyObject,
    338 | |                 key: ffi::Py_ssize_t,
    ...   |
    365 | |             Some(wrap::<T>)
    366 | |         }
        | |_________^ cannot specialize default item `del_set_item`
        |
        = note: to specialize, `del_set_item` in the parent `impl` must be marked `default`

    error[E0520]: `with_borrowed_ptr` specializes an item from a parent `impl`, but that item is not marked `default`
       --> /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/pyo3-0.7.0/src/conversion.rs:117:5
        |
    111 |   impl<T> ToBorrowedObject for T where T: ToPyObject {}
        |   ----------------------------------------------------- parent `impl` is here
    ...
    117 | /     fn with_borrowed_ptr<F, R>(&self, _py: Python, f: F) -> R
    118 | |     where
    119 | |         F: FnOnce(*mut ffi::PyObject) -> R,
    120 | |     {
    121 | |         f(self.as_ptr())
    122 | |     }
        | |_____^ cannot specialize default item `with_borrowed_ptr`
        |
        = note: to specialize, `with_borrowed_ptr` in the parent `impl` must be marked `default`

    error[E0520]: `as_ref_dispatch` specializes an item from a parent `impl`, but that item is not marked `default`
       --> /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/pyo3-0.7.0/src/instance.rs:369:5
        |
    366 |   impl<T: PyTypeInfo> AsPyRefDispatch<T> for Py<T> {}
        |   --------------------------------------------------- parent `impl` is here
    ...
    369 | /     fn as_ref_dispatch(&self, _py: Python) -> &T {
    370 | |         unsafe { &*(self as *const instance::Py<T> as *const T) }
    371 | |     }
        | |_____^ cannot specialize default item `as_ref_dispatch`
        |
        = note: to specialize, `as_ref_dispatch` in the parent `impl` must be marked `default`

    error[E0520]: `as_mut_dispatch` specializes an item from a parent `impl`, but that item is not marked `default`
       --> /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/pyo3-0.7.0/src/instance.rs:372:5
        |
    366 |   impl<T: PyTypeInfo> AsPyRefDispatch<T> for Py<T> {}
        |   --------------------------------------------------- parent `impl` is here
    ...
    372 | /     fn as_mut_dispatch(&mut self, _py: Python) -> &mut T {
    373 | |         unsafe { &mut *(self as *mut _ as *mut T) }
    374 | |     }
        | |_____^ cannot specialize default item `as_mut_dispatch`
        |
        = note: to specialize, `as_mut_dispatch` in the parent `impl` must be marked `default`

    error[E0520]: `to_managed_py_ref` specializes an item from a parent `impl`, but that item is not marked `default`
       --> /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/pyo3-0.7.0/src/instance.rs:576:5
        |
    570 |   impl<T: ToPyObject + ?Sized> ManagedPyRefDispatch for T {}
        |   ---------------------------------------------------------- parent `impl` is here
    ...
    576 | /     fn to_managed_py_ref<'p>(&self, py: Python<'p>) -> ManagedPyRef<'p, Self> {
    577 | |         ManagedPyRef {
    578 | |             data: self.as_ptr(),
    579 | |             data_type: PhantomData,
    580 | |             _py: py,
    581 | |         }
    582 | |     }
        | |_____^ cannot specialize default item `to_managed_py_ref`
        |
        = note: to specialize, `to_managed_py_ref` in the parent `impl` must be marked `default`

    error[E0520]: `drop_impl` specializes an item from a parent `impl`, but that item is not marked `default`
       --> /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/pyo3-0.7.0/src/instance.rs:585:5
        |
    570 | impl<T: ToPyObject + ?Sized> ManagedPyRefDispatch for T {}
        | ---------------------------------------------------------- parent `impl` is here
    ...
    585 |     fn drop_impl(_: &mut ManagedPyRef<T>) {}
        |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ cannot specialize default item `drop_impl`
        |
        = note: to specialize, `drop_impl` in the parent `impl` must be marked `default`

    error: aborting due to 89 previous errors

    For more information about this error, try `rustc --explain E0520`.
    error: could not compile `pyo3`

    Caused by:
      process didn't exit successfully: `rustc --crate-name pyo3 --edition=2018 /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/pyo3-0.7.0/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type lib --emit=dep-info,metadata,link -C opt-level=3 -C embed-bitcode=no --cfg 'feature="default"' --cfg 'feature="extension-module"' -C metadata=2b02d3cc6934fdd6 -C extra-filename=-2b02d3cc6934fdd6 --out-dir /tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps -L dependency=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps --extern inventory=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps/libinventory-701eefaf91ecce0c.rmeta --extern libc=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps/liblibc-9e1e5be5fbec308b.rmeta --extern mashup=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps/libmashup-a1fe0a2bd5505ba2.rmeta --extern num_traits=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps/libnum_traits-b9cd4cd2c6156acf.rmeta --extern pyo3cls=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps/libpyo3cls-98daaa7fb14b4973.so --extern spin=/tmp/pip-install-48lrbb0c/celery-exporter/target/release/deps/libspin-638b2ded4481154c.rmeta --cap-lints allow --cfg Py_3_5 --cfg Py_3_6 --cfg Py_3_7 --cfg Py_3_8 --cfg Py_3_9 --cfg Py_3 --cfg 'py_sys_config="WITH_THREAD"'` (exit code: 1)
    error: cargo failed with code: 101

    ----------------------------------------
ERROR: Command errored out with exit status 1: /usr/bin/python3 -u -c 'import sys, setuptools, tokenize; sys.argv[0] = '"'"'/tmp/pip-install-48lrbb0c/celery-exporter/setup.py'"'"'; __file__='"'"'/tmp/pip-install-48lrbb0c/celery-exporter/setup.py'"'"';f=getattr(tokenize, '"'"'open'"'"', open)(__file__);code=f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' install --record /tmp/pip-record-qgkknkdc/install-record.txt --single-version-externally-managed --user --prefix= --compile --install-headers /home/user/.local/include/python3.9/celery-exporter Check the logs for full command output.

[rpitonak]

I have encountered the same issue, Debian GNU/Linux 10 (buster)

[gergelypolonkai]

Same on Fedora 33 and current Arch Linux.

[SharpEdgeMarshall]

We released a version with precompiled wheels, would you like to give it a try? Feel free to reopen if the issue still arises