Build: signal: 11, SIGSEGV: invalid memory reference fail

[OvoNemaSmisla]

Have you read the documentation? Yes.

Did you double-check that you installed all dependencies? Yes.

Which command failed? cargo build --locked --release

What was the error message?

Error message

``` Compiling libc v0.2.151 Compiling proc-macro2 v1.0.71 Compiling serde v1.0.171 Compiling autocfg v1.1.0 /lib/aarch64-linux-gnu/librustc_driver-fe2d3f0c4114cdf4.so(+0x6c4430)[0x7f8c2e4430] linux-vdso.so.1(__kernel_rt_sigreturn+0x0)[0x7f8f34d7bc] /lib/aarch64-linux-gnu/libLLVM-14.so.1(+0x132a9f0)[0x7f8695a9f0] linux-vdso.so.1(__kernel_rt_sigreturn+0x0)[0x7f8f34d7bc] [60/1000] /lib/aarch64-linux-gnu/libLLVM-14.so.1(+0x132a9f0)[0x7f8695a9f0] /lib/aarch64-linux-gnu/libLLVM-14.so.1(_ZN4llvm11raw_ostream5writeEPKcm+0x164)[0x7f864ab49c] /lib/aarch64-linux-gnu/librustc_driver-fe2d3f0c4114cdf4.so(+0x6c4430)[0x7f9a4b4430] linux-vdso.so.1(__kernel_rt_sigreturn+0x0)[0x7f9d5277bc] /lib/aarch64-linux-gnu/libLLVM-14.so.1(+0x132a9f0)[0x7f94b2a9f0] /lib/aarch64-linux-gnu/libLLVM-14.so.1(_ZN4llvm11raw_ostream5writeEPKcm+0x164)[0x7f9467b49c] /lib/aarch64-linux-gnu/libLLVM-14.so.1(_ZN4llvm9MCContext16createTempSymbolERKNS_5TwineEb+0xb4)[0x7f87861048] /lib/aarch64-linux-gnu/libLLVM-14.so.1(_ZN4llvm9MCContext16createTempSymbolERKNS_5TwineEb+0xb4)[0x7f95a31048] /lib/aarch64-linux-gnu/librustc_driver-fe2d3f0c4114cdf4.so(+0x6c4430)[0x7fb4404430] /lib/aarch64-linux-gnu/libLLVM-14.so.1(_ZN4llvm9MCContext16createTempSymbolEv+0x3c)[0x7f878613f0] linux-vdso.so.1(__kernel_rt_sigreturn+0x0)[0x7fb74757bc] /lib/aarch64-linux-gnu/libLLVM-14.so.1(+0x132a9f0)[0x7faea7a9f0] /lib/aarch64-linux-gnu/libLLVM-14.so.1(_ZN4llvm9MCContext16createTempSymbolEv+0x3c)[0x7f95a313f0] /lib/aarch64-linux-gnu/libLLVM-14.so.1(_ZN4llvm11raw_ostream5writeEPKcm+0x164)[0x7fae5cb49c] /lib/aarch64-linux-gnu/libLLVM-14.so.1(_ZN4llvm16MCObjectStreamer18emitCFIEndProcImplERNS_16MCDwarfFrameInfoE+0x1c)[0x7f87885c6c] /lib/aarch64-linux-gnu/libLLVM-14.so.1(_ZN4llvm16MCObjectStreamer18emitCFIEndProcImplERNS_16MCDwarfFrameInfoE+0x1c)[0x7f95a55c6c] /lib/aarch64-linux-gnu/libLLVM-14.so.1(+0x165f4c0)[0x7f94e5f4c0] /lib/aarch64-linux-gnu/libLLVM-14.so.1(+0x165f4c0)[0x7f86c8f4c0] /lib/aarch64-linux-gnu/libLLVM-14.so.1(_ZN4llvm9MCContext16createTempSymbolERKNS_5TwineEb+0xb4)[0x7faf981048] /lib/aarch64-linux-gnu/libLLVM-14.so.1(_ZN4llvm10AsmPrinter16emitFunctionBodyEv+0x264c)[0x7f86c70b6c] /lib/aarch64-linux-gnu/libLLVM-14.so.1(_ZN4llvm10AsmPrinter16emitFunctionBodyEv+0x264c)[0x7f94e40b6c] /lib/aarch64-linux-gnu/libLLVM-14.so.1(_ZN4llvm9MCContext16createTempSymbolEv+0x3c)[0x7faf9813f0] /lib/aarch64-linux-gnu/libLLVM-14.so.1(+0x2764ba4)[0x7f95f64ba4] /lib/aarch64-linux-gnu/libLLVM-14.so.1(+0x2764ba4)[0x7f87d94ba4] /lib/aarch64-linux-gnu/libLLVM-14.so.1(_ZN4llvm19MachineFunctionPass13runOnFunctionERNS_8FunctionE+0x140)[0x7f949f122c] /lib/aarch64-linux-gnu/libLLVM-14.so.1(_ZN4llvm19MachineFunctionPass13runOnFunctionERNS_8FunctionE+0x140)[0x7f8682122c] /lib/aarch64-linux-gnu/libLLVM-14.so.1(_ZN4llvm16MCObjectStreamer18emitCFIEndProcImplERNS_16MCDwarfFrameInfoE+0x1c)[0x7faf9a5c6c] /lib/aarch64-linux-gnu/libLLVM-14.so.1(_ZN4llvm13FPPassManager13runOnFunctionERNS_8FunctionE+0x26c)[0x7f947d4390] /lib/aarch64-linux-gnu/libLLVM-14.so.1(_ZN4llvm13FPPassManager13runOnFunctionERNS_8FunctionE+0x26c)[0x7f86604390] /lib/aarch64-linux-gnu/libLLVM-14.so.1(_ZN4llvm13FPPassManager11runOnModuleERNS_6ModuleE+0x3c)[0x7f947daf70] /lib/aarch64-linux-gnu/libLLVM-14.so.1(_ZN4llvm13FPPassManager11runOnModuleERNS_6ModuleE+0x3c)[0x7f8660af70] /lib/aarch64-linux-gnu/libLLVM-14.so.1(_ZN4llvm6legacy15PassManagerImpl3runERNS_6ModuleE+0x7b4)[0x7f947d4d98] /lib/aarch64-linux-gnu/libLLVM-14.so.1(_ZN4llvm6legacy15PassManagerImpl3runERNS_6ModuleE+0x7b4)[0x7f86604d98] /lib/aarch64-linux-gnu/librustc_driver-fe2d3f0c4114cdf4.so(+0x951d8c)[0x7f9a741d8c] /lib/aarch64-linux-gnu/libLLVM-14.so.1(+0x165f4c0)[0x7faedaf4c0] /lib/aarch64-linux-gnu/librustc_driver-fe2d3f0c4114cdf4.so(+0x951d8c)[0x7f8c571d8c] /lib/aarch64-linux-gnu/librustc_driver-fe2d3f0c4114cdf4.so(+0x92c114)[0x7f9a71c114] /lib/aarch64-linux-gnu/librustc_driver-fe2d3f0c4114cdf4.so(+0x92c114)[0x7f8c54c114] /lib/aarch64-linux-gnu/librustc_driver-fe2d3f0c4114cdf4.so(+0x930d88)[0x7f9a720d88] /lib/aarch64-linux-gnu/librustc_driver-fe2d3f0c4114cdf4.so(+0x930d88)[0x7f8c550d88] /lib/aarch64-linux-gnu/librustc_driver-fe2d3f0c4114cdf4.so(+0x925db4)[0x7f9a715db4] /lib/aarch64-linux-gnu/librustc_driver-fe2d3f0c4114cdf4.so(+0x925db4)[0x7f8c545db4] /lib/aarch64-linux-gnu/librustc_driver-fe2d3f0c4114cdf4.so(+0x921230)[0x7f9a711230] /lib/aarch64-linux-gnu/librustc_driver-fe2d3f0c4114cdf4.so(+0x921230)[0x7f8c541230] /lib/aarch64-linux-gnu/librustc_driver-fe2d3f0c4114cdf4.so(+0x80c0c0)[0x7f9a5fc0c0] /lib/aarch64-linux-gnu/librustc_driver-fe2d3f0c4114cdf4.so(+0x80c0c0)[0x7f8c42c0c0] /lib/aarch64-linux-gnu/librustc_driver-fe2d3f0c4114cdf4.so(+0x8f6608)[0x7f9a6e6608] /lib/aarch64-linux-gnu/librustc_driver-fe2d3f0c4114cdf4.so(+0x8f6608)[0x7f8c516608] /lib/aarch64-linux-gnu/libstd-4e83e61126e325db.so(rust_metadata_std_aeb45179e3b08762+0x9ffec)[0x7f99cdffec] /lib/aarch64-linux-gnu/libc.so.6(+0x7ee18)[0x7f99b0ee18] /lib/aarch64-linux-gnu/libstd-4e83e61126e325db.so(rust_metadata_std_aeb45179e3b08762+0x9ffec)[0x7f8bb0ffec] /lib/aarch64-linux-gnu/libc.so.6(+0x7ee18)[0x7f8b93ee18] /lib/aarch64-linux-gnu/libc.so.6(+0xe7e9c)[0x7f99b77e9c] /lib/aarch64-linux-gnu/libc.so.6(+0xe7e9c)[0x7f8b9a7e9c] /lib/aarch64-linux-gnu/libLLVM-14.so.1(_ZN4llvm10AsmPrinter16emitFunctionBodyEv+0x264c)[0x7faed90b6c] /lib/aarch64-linux-gnu/libLLVM-14.so.1(+0x2764ba4)[0x7fafeb4ba4] /lib/aarch64-linux-gnu/libLLVM-14.so.1(_ZN4llvm19MachineFunctionPass13runOnFunctionERNS_8FunctionE+0x140)[0x7fae94122c] /lib/aarch64-linux-gnu/libLLVM-14.so.1(_ZN4llvm13FPPassManager13runOnFunctionERNS_8FunctionE+0x26c)[0x7fae724390] /lib/aarch64-linux-gnu/libLLVM-14.so.1(_ZN4llvm13FPPassManager11runOnModuleERNS_6ModuleE+0x3c)[0x7fae72af70] /lib/aarch64-linux-gnu/libLLVM-14.so.1(_ZN4llvm6legacy15PassManagerImpl3runERNS_6ModuleE+0x7b4)[0x7fae724d98] /lib/aarch64-linux-gnu/librustc_driver-fe2d3f0c4114cdf4.so(+0x951d8c)[0x7fb4691d8c] /lib/aarch64-linux-gnu/libLLVM-14.so.1(_ZN4llvm6legacy15PassManagerImpl3runERNS_6ModuleE+0x7b4)[0x7fae724d98] [0/1000] /lib/aarch64-linux-gnu/librustc_driver-fe2d3f0c4114cdf4.so(+0x951d8c)[0x7fb4691d8c] /lib/aarch64-linux-gnu/librustc_driver-fe2d3f0c4114cdf4.so(+0x92c114)[0x7fb466c114] /lib/aarch64-linux-gnu/librustc_driver-fe2d3f0c4114cdf4.so(+0x930d88)[0x7fb4670d88] /lib/aarch64-linux-gnu/librustc_driver-fe2d3f0c4114cdf4.so(+0x925db4)[0x7fb4665db4] /lib/aarch64-linux-gnu/librustc_driver-fe2d3f0c4114cdf4.so(+0x921230)[0x7fb4661230] /lib/aarch64-linux-gnu/librustc_driver-fe2d3f0c4114cdf4.so(+0x80c0c0)[0x7fb454c0c0] /lib/aarch64-linux-gnu/librustc_driver-fe2d3f0c4114cdf4.so(+0x8f6608)[0x7fb4636608] /lib/aarch64-linux-gnu/libstd-4e83e61126e325db.so(rust_metadata_std_aeb45179e3b08762+0x9ffec)[0x7fb3c2ffec] /lib/aarch64-linux-gnu/libc.so.6(+0x7ee18)[0x7fb3a5ee18] /lib/aarch64-linux-gnu/libc.so.6(+0xe7e9c)[0x7fb3ac7e9c] error: could not compile `serde` Caused by: process didn't exit successfully: `rustc --crate-name build_script_build /home/admin/.cargo/registry/src/github.com-1ecc6299db9ec823/serde-1.0.171/build.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --crate-type bin --emit=dep-info,link -C embed-bitcode=no -C debug-assertions=off --cfg 'feature="alloc"' --cfg 'feature="default"' --cfg 'feature="derive"' --cfg 'feature="serde_derive"' --cfg 'feature="std"' -C metadata=78795a5c89f57fcd -C extra-filename=-78795a5c89f57fcd --out-dir /home/admin/rust/electrs/target/release/build/serde-78795a5c89f57fcd -L dependency=/home/admin/rust/electrs/target/release/deps --cap-lints allow` (signal: 11, SIGSEGV: invalid memory reference) warning: build failed, waiting for other jobs to finish... error: could not compile `proc-macro2` Caused by: process didn't exit successfully: `rustc --crate-name build_script_build --edition=2021 /home/admin/.cargo/registry/src/github.com-1ecc6299db9ec823/proc-macro2-1.0.71/build.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --crate-type bin --emit=dep-info,link -C embed-bitcode=no -C debug-assertions=off --cfg 'feature="default"' --cfg 'feature="proc-macro"' -C metadata=beb95e6656d1e006 -C extra-filename=-beb95e6656d1e006 --out-dir /home/admin/rust/electrs/target/release/build/proc-macro2-beb95e6656d1e006 -L dependency=/home/admin/rust/electrs/target/release/deps --cap-lints allow` (signal: 11, SIGSEGV: invalid memory reference) error: could not compile `libc` Caused by: process didn't exit successfully: `rustc --crate-name build_script_build /home/admin/.cargo/registry/src/github.com-1ecc6299db9ec823/libc-0.2.151/build.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --crate-type bin --emit=dep-info,link -C embed-bitcode=no -C debug-assertions=off --cfg 'feature="default"' --cfg 'feature="std"' -C metadata=fafbb2462b388e90 -C extra-filename=-fafbb2462b388e90 --out-dir /home/admin/rust/electrs/target/release/build/libc-fafbb2462b388e90 -L dependency=/home/admin/rust/electrs/target/release/deps --cap-lints allow` (signal: 11, SIGSEGV: invalid memory reference) /lib/aarch64-linux-gnu/librustc_driver-fe2d3f0c4114cdf4.so(+0x6c4430)[0x7faebe4430] linux-vdso.so.1(__kernel_rt_sigreturn+0x0)[0x7fb1c4e7bc] /lib/aarch64-linux-gnu/libLLVM-14.so.1(+0x132a9f0)[0x7fa925a9f0] /lib/aarch64-linux-gnu/libLLVM-14.so.1(_ZN4llvm11raw_ostream5writeEPKcm+0x164)[0x7fa8dab49c] /lib/aarch64-linux-gnu/libLLVM-14.so.1(_ZN4llvm9MCContext16createTempSymbolERKNS_5TwineEb+0xb4)[0x7faa161048] /lib/aarch64-linux-gnu/libLLVM-14.so.1(_ZN4llvm9MCContext16createTempSymbolEv+0x3c)[0x7faa1613f0] /lib/aarch64-linux-gnu/libLLVM-14.so.1(_ZN4llvm16MCObjectStreamer18emitCFIEndProcImplERNS_16MCDwarfFrameInfoE+0x1c)[0x7faa185c6c] /lib/aarch64-linux-gnu/libLLVM-14.so.1(+0x165f4c0)[0x7fa958f4c0] /lib/aarch64-linux-gnu/libLLVM-14.so.1(_ZN4llvm10AsmPrinter16emitFunctionBodyEv+0x264c)[0x7fa9570b6c] /lib/aarch64-linux-gnu/libLLVM-14.so.1(+0x2764ba4)[0x7faa694ba4] /lib/aarch64-linux-gnu/libLLVM-14.so.1(_ZN4llvm19MachineFunctionPass13runOnFunctionERNS_8FunctionE+0x140)[0x7fa912122c] /lib/aarch64-linux-gnu/libLLVM-14.so.1(_ZN4llvm13FPPassManager13runOnFunctionERNS_8FunctionE+0x26c)[0x7fa8f04390] /lib/aarch64-linux-gnu/libLLVM-14.so.1(_ZN4llvm13FPPassManager11runOnModuleERNS_6ModuleE+0x3c)[0x7fa8f0af70] /lib/aarch64-linux-gnu/libLLVM-14.so.1(_ZN4llvm6legacy15PassManagerImpl3runERNS_6ModuleE+0x7b4)[0x7fa8f04d98] /lib/aarch64-linux-gnu/librustc_driver-fe2d3f0c4114cdf4.so(+0x951d8c)[0x7faee71d8c] /lib/aarch64-linux-gnu/librustc_driver-fe2d3f0c4114cdf4.so(+0x92c114)[0x7faee4c114] /lib/aarch64-linux-gnu/librustc_driver-fe2d3f0c4114cdf4.so(+0x930d88)[0x7faee50d88] /lib/aarch64-linux-gnu/librustc_driver-fe2d3f0c4114cdf4.so(+0x925db4)[0x7faee45db4] /lib/aarch64-linux-gnu/librustc_driver-fe2d3f0c4114cdf4.so(+0x921230)[0x7faee41230] /lib/aarch64-linux-gnu/librustc_driver-fe2d3f0c4114cdf4.so(+0x80c0c0)[0x7faed2c0c0] /lib/aarch64-linux-gnu/librustc_driver-fe2d3f0c4114cdf4.so(+0x8f6608)[0x7faee16608] /lib/aarch64-linux-gnu/libstd-4e83e61126e325db.so(rust_metadata_std_aeb45179e3b08762+0x9ffec)[0x7fae40ffec] /lib/aarch64-linux-gnu/libc.so.6(+0x7ee18)[0x7fae23ee18] /lib/aarch64-linux-gnu/libc.so.6(+0xe7e9c)[0x7fae2a7e9c] error: could not compile `autocfg` Caused by: process didn't exit successfully: `rustc --crate-name autocfg /home/admin/.cargo/registry/src/github.com-1ecc6299db9ec823/autocfg-1.1.0/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no -C debug-assertions=off -C metadata=a60d3e6346f26eda -C extra-filename=-a60d3e6346f26eda --out-dir /home/admin/rust/electrs/target/release/deps -L dependency=/home/admin/rust/electrs/target/release/deps --cap-lints allow` (signal: 11, SIGSEGV: invalid memory reference) ```

System OS name and version: (If Linux, the distribution name and version) uname -a Linux raspibolt 6.1.0-rpi7-rpi-v8 #1 SMP PREEMPT Debian 1:6.1.63-1+rpt1 (2023-11-24) aarch64 GNU/Linux lsb_release -a No LSB modules are available. Distributor ID: Debian Description: Debian GNU/Linux 12 (bookworm) Release: 12 Codename: bookworm rustc version: (run rustc --version) rustc 1.63.0 cargo version: (run cargo --version; not guaranteed to be same as rustc version!) cargo 1.65.0

Compilation Linking: static Cross compilation: no Target architecture: (uname -m on Linux if not cross-compiling) aarch64

Additional context I'm trying to install electrs on Raspberry Pi 3b with Raspberry Pi OS Lite 64 booting from USB 2TB HDD with 4GB swap file. I've installed cargo using apt install cargo, I have Bitcoin Core version v26.0.0 installed and running and I've installed the latest Electrum Wallet. I've executed the following commands:

1. sudo apt update
2. sudo apt install clang cmake build-essential # for building 'rust-rocksdb'
3. git clone https://github.com/romanz/electrs
4. cd electrs
5. cargo build --locked --release

[OvoNemaSmisla]

Maybe another way to go about this is to cross compile on my Odroid N2 running with Ubuntu 18.04: uname -a Linux odroid 4.9.333-79 #1 SMP PREEMPT Tue Dec 6 22:41:40 -03 2022 aarch64 aarch64 aarch64 GNU/Linux lsb_release -a No LSB modules are available. Distributor ID: Ubuntu Description: Ubuntu 18.04.6 LTS Release: 18.04 Codename: bionic Or maybe it doesn't require cross compile at all and I can just copy the existing, compiled electrs version from Odroid?

[romanz]

Many thanks for reporting this issue!

CC: @Kixunil

[romanz]

Seems like a segfault in rustc?

rustc --crate-name build_script_build /home/admin/.cargo/registry/src/github.com-1ecc6299db9ec823/serde-1.0.171/build.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --crate-type bin --emit=dep-info,link -C embed-bitcode=no -C debug-assertions=off --cfg 'feature="alloc"' --cfg 'feature="default"' --cfg 'feature="derive"' --cfg 'feature="serde_derive"' --cfg 'feature="std"' -C metadata=78795a5c89f57fcd -C extra-filename=-78795a5c89f57fcd --out-dir /home/admin/rust/electrs/target/release/build/serde-78795a5c89f57fcd -L dependency=/home/admin/rust/electrs/target/release/deps --cap-lints allow (signal: 11, SIGSEGV: invalid memory reference`

rustc --crate-name build_script_build --edition=2021 /home/admin/.cargo/registry/src/github.com-1ecc6299db9ec823/proc-macro2-1.0.71/build.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --crate-type bin --emit=dep-info,link -C embed-bitcode=no -C debug-assertions=off --cfg 'feature="default"' --cfg 'feature="proc-macro"' -C metadata=beb95e6656d1e006 -C extra-filename=-beb95e6656d1e006 --out-dir /home/admin/rust/electrs/target/release/build/proc-macro2-beb95e6656d1e006 -L dependency=/home/admin/rust/electrs/target/release/deps --cap-lints allow (signal: 11, SIGSEGV: invalid memory reference`

rustc --crate-name build_script_build /home/admin/.cargo/registry/src/github.com-1ecc6299db9ec823/libc-0.2.151/build.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --crate-type bin --emit=dep-info,link -C embed-bitcode=no -C debug-assertions=off --cfg 'feature="default"' --cfg 'feature="std"' -C metadata=fafbb2462b388e90 -C extra-filename=-fafbb2462b388e90 --out-dir /home/admin/rust/electrs/target/release/build/libc-fafbb2462b388e90 -L dependency=/home/admin/rust/electrs/target/release/deps --cap-lints allow (signal: 11, SIGSEGV: invalid memory reference`

rustc --crate-name autocfg /home/admin/.cargo/registry/src/github.com-1ecc6299db9ec823/autocfg-1.1.0/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no -C debug-assertions=off -C metadata=a60d3e6346f26eda -C extra-filename=-a60d3e6346f26eda --out-dir /home/admin/rust/electrs/target/release/deps -L dependency=/home/admin/rust/electrs/target/release/deps --cap-lints allow (signal: 11, SIGSEGV: invalid memory reference`

[romanz]

@OvoNemaSmisla Could you please try to install Rust via https://rustup.rs/ (instead of apt)?

[romanz]

@OvoNemaSmisla Also, could you please try to build electrs in debug mode (to see if it also fails) using:

$ cargo build --locked

[OvoNemaSmisla]

@OvoNemaSmisla Also, could you please try to build electrs in debug mode (to see if it also fails) using:

$ cargo build --locked

Here is the log:

   Compiling proc-macro2 v1.0.71
   Compiling unicode-ident v1.0.12
   Compiling cfg-if v1.0.0
   Compiling serde v1.0.171
/lib/aarch64-linux-gnu/librustc_driver-fe2d3f0c4114cdf4.so(+0x6c4430)[0x7fad4c4430]
linux-vdso.so.1(__kernel_rt_sigreturn+0x0)[0x7fb05367bc]
/lib/aarch64-linux-gnu/libLLVM-14.so.1(+0x132a9f0)[0x7fa7b3a9f0]
/lib/aarch64-linux-gnu/libLLVM-14.so.1(_ZN4llvm11raw_ostream5writeEPKcm+0x164)[0x7fa768b49c]
/lib/aarch64-linux-gnu/libLLVM-14.so.1(_ZN4llvm9MCContext16createTempSymbolERKNS_5TwineEb+0xb4)[0x7fa8a41048]
/lib/aarch64-linux-gnu/libLLVM-14.so.1(_ZN4llvm9MCContext16createTempSymbolEv+0x3c)[0x7fa8a413f0]
/lib/aarch64-linux-gnu/libLLVM-14.so.1(_ZN4llvm16MCDwarfLineEntry4makeEPNS_10MCStreamerEPNS_9MCSectionE+0x3c)[0x7fa8a49ec0]
/lib/aarch64-linux-gnu/libLLVM-14.so.1(_ZN4llvm16MCObjectStreamer19emitInstructionImplERKNS_6MCInstERKNS_15MCSubtargetInfoE+0x94)[0x7fa8a66934]
/lib/aarch64-linux-gnu/libLLVM-14.so.1(_ZN4llvm16MCObjectStreamer15emitInstructionERKNS_6MCInstERKNS_15MCSubtargetInfoE+0x140)[0x7fa8a66858]
/lib/aarch64-linux-gnu/libLLVM-14.so.1(+0x28adf50)[0x7fa90bdf50]
/lib/aarch64-linux-gnu/libLLVM-14.so.1(+0x2767f08)[0x7fa8f77f08]
/lib/aarch64-linux-gnu/libLLVM-14.so.1(_ZN4llvm10AsmPrinter16emitFunctionBodyEv+0xa10)[0x7fa7e4ef30]
/lib/aarch64-linux-gnu/libLLVM-14.so.1(+0x2764ba4)[0x7fa8f74ba4]
/lib/aarch64-linux-gnu/libLLVM-14.so.1(_ZN4llvm19MachineFunctionPass13runOnFunctionERNS_8FunctionE+0x140)[0x7fa7a0122c]
/lib/aarch64-linux-gnu/libLLVM-14.so.1(_ZN4llvm13FPPassManager13runOnFunctionERNS_8FunctionE+0x26c)[0x7fa77e4390]
/lib/aarch64-linux-gnu/libLLVM-14.so.1(_ZN4llvm13FPPassManager11runOnModuleERNS_6ModuleE+0x3c)[0x7fa77eaf70]
/lib/aarch64-linux-gnu/libLLVM-14.so.1(_ZN4llvm6legacy15PassManagerImpl3runERNS_6ModuleE+0x7b4)[0x7fa77e4d98]
/lib/aarch64-linux-gnu/librustc_driver-fe2d3f0c4114cdf4.so(+0x951d8c)[0x7fad751d8c]
/lib/aarch64-linux-gnu/librustc_driver-fe2d3f0c4114cdf4.so(+0x92c114)[0x7fad72c114]
/lib/aarch64-linux-gnu/librustc_driver-fe2d3f0c4114cdf4.so(+0x930d88)[0x7fad730d88]
/lib/aarch64-linux-gnu/librustc_driver-fe2d3f0c4114cdf4.so(+0x925db4)[0x7fad725db4]
/lib/aarch64-linux-gnu/librustc_driver-fe2d3f0c4114cdf4.so(+0x921230)[0x7fad721230]
/lib/aarch64-linux-gnu/librustc_driver-fe2d3f0c4114cdf4.so(+0x80c0c0)[0x7fad60c0c0]
/lib/aarch64-linux-gnu/librustc_driver-fe2d3f0c4114cdf4.so(+0x8f6608)[0x7fad6f6608]
/lib/aarch64-linux-gnu/libstd-4e83e61126e325db.so(rust_metadata_std_aeb45179e3b08762+0x9ffec)[0x7facceffec]
/lib/aarch64-linux-gnu/libc.so.6(+0x7ee18)[0x7facb1ee18]
/lib/aarch64-linux-gnu/libc.so.6(+0xe7e9c)[0x7facb87e9c]
error: could not compile `unicode-ident`                                                                                                                                                                                                                                                                                                                                                                                                                                                  Caused by:
  process didn't exit successfully: `rustc --crate-name unicode_ident --edition=2018 /home/admin/.cargo/registry/src/github.com-1ecc6299db9ec823/unicode-ident-1.0.12/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifact
s,future-incompat --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no -C debuginfo=2 -C metadata=6a9fcc9043637f9f -C extra-filename=-6a9fcc9043637f9f --out-dir /home/admin/rust/electrs/target/debug/deps -L dependency=/home
/admin/rust/electrs/target/debug/deps --cap-lints allow` (signal: 11, SIGSEGV: invalid memory reference)
warning: build failed, waiting for other jobs to finish...
/lib/aarch64-linux-gnu/librustc_driver-fe2d3f0c4114cdf4.so(+0x6c4430)[0x7f8baf4430]
linux-vdso.so.1(__kernel_rt_sigreturn+0x0)[0x7f8eb687bc]
/lib/aarch64-linux-gnu/libLLVM-14.so.1(+0x132a9f0)[0x7f8616a9f0]
/lib/aarch64-linux-gnu/libLLVM-14.so.1(_ZN4llvm11raw_ostream5writeEPKcm+0x164)[0x7f85cbb49c]
/lib/aarch64-linux-gnu/libLLVM-14.so.1(_ZN4llvm9MCContext16createTempSymbolERKNS_5TwineEb+0xb4)[0x7f87071048]
/lib/aarch64-linux-gnu/libLLVM-14.so.1(_ZN4llvm10DwarfDebug11beginModuleEPNS_6ModuleE+0x494)[0x7f864adc48]
/lib/aarch64-linux-gnu/libLLVM-14.so.1(_ZN4llvm10AsmPrinter16doInitializationERNS_6ModuleE+0xaf4)[0x7f8647b53c]
/lib/aarch64-linux-gnu/libLLVM-14.so.1(_ZN4llvm13FPPassManager16doInitializationERNS_6ModuleE+0x40)[0x7f85e1afec]
/lib/aarch64-linux-gnu/libLLVM-14.so.1(_ZN4llvm6legacy15PassManagerImpl3runERNS_6ModuleE+0x26c)[0x7f85e14850]
/lib/aarch64-linux-gnu/librustc_driver-fe2d3f0c4114cdf4.so(+0x951d8c)[0x7f8bd81d8c]
/lib/aarch64-linux-gnu/librustc_driver-fe2d3f0c4114cdf4.so(+0x92c114)[0x7f8bd5c114]
/lib/aarch64-linux-gnu/librustc_driver-fe2d3f0c4114cdf4.so(+0x930d88)[0x7f8bd60d88]
/lib/aarch64-linux-gnu/librustc_driver-fe2d3f0c4114cdf4.so(+0x925db4)[0x7f8bd55db4]
/lib/aarch64-linux-gnu/librustc_driver-fe2d3f0c4114cdf4.so(+0x921230)[0x7f8bd51230]
/lib/aarch64-linux-gnu/librustc_driver-fe2d3f0c4114cdf4.so(+0x80c0c0)[0x7f8bc3c0c0]
/lib/aarch64-linux-gnu/librustc_driver-fe2d3f0c4114cdf4.so(+0x8f6608)[0x7f8bd26608]
/lib/aarch64-linux-gnu/libstd-4e83e61126e325db.so(rust_metadata_std_aeb45179e3b08762+0x9ffec)[0x7f8b31ffec]
/lib/aarch64-linux-gnu/libc.so.6(+0x7ee18)[0x7f8b14ee18]
/lib/aarch64-linux-gnu/libc.so.6(+0xe7e9c)[0x7f8b1b7e9c]
/lib/aarch64-linux-gnu/librustc_driver-fe2d3f0c4114cdf4.so(+0x6c4430)[0x7f7e1b4430]
linux-vdso.so.1(__kernel_rt_sigreturn+0x0)[0x7f8121b7bc]
/lib/aarch64-linux-gnu/librustc_driver-fe2d3f0c4114cdf4.so(+0x6c4430)[0x7f7e1b4430]                                                                                                                                                 [161/221]
linux-vdso.so.1(__kernel_rt_sigreturn+0x0)[0x7f8121b7bc]
/lib/aarch64-linux-gnu/libLLVM-14.so.1(+0x132a9f0)[0x7f7882a9f0]
/lib/aarch64-linux-gnu/libLLVM-14.so.1(_ZN4llvm11raw_ostream5writeEPKcm+0x164)[0x7f7837b49c]
/lib/aarch64-linux-gnu/libLLVM-14.so.1(_ZN4llvm9MCContext16createTempSymbolERKNS_5TwineEb+0xb4)[0x7f79731048]
/lib/aarch64-linux-gnu/libLLVM-14.so.1(_ZN4llvm10DwarfDebug11beginModuleEPNS_6ModuleE+0x494)[0x7f78b6dc48]
error: could not compile `serde`

Caused by:
  process didn't exit successfully: `rustc --crate-name build_script_build /home/admin/.cargo/registry/src/github.com-1ecc6299db9ec823/serde-1.0.171/build.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat -
-crate-type bin --emit=dep-info,link -C embed-bitcode=no -C debuginfo=2 --cfg 'feature="alloc"' --cfg 'feature="default"' --cfg 'feature="derive"' --cfg 'feature="serde_derive"' --cfg 'feature="std"' -C metadata=0066472f0314da4a -C extra
-filename=-0066472f0314da4a --out-dir /home/admin/rust/electrs/target/debug/build/serde-0066472f0314da4a -L dependency=/home/admin/rust/electrs/target/debug/deps --cap-lints allow` (signal: 11, SIGSEGV: invalid memory reference)
/lib/aarch64-linux-gnu/libLLVM-14.so.1(_ZN4llvm10AsmPrinter16doInitializationERNS_6ModuleE+0xaf4)[0x7f78b3b53c]
/lib/aarch64-linux-gnu/libLLVM-14.so.1(_ZN4llvm13FPPassManager16doInitializationERNS_6ModuleE+0x40)[0x7f784dafec]
/lib/aarch64-linux-gnu/libLLVM-14.so.1(_ZN4llvm6legacy15PassManagerImpl3runERNS_6ModuleE+0x26c)[0x7f784d4850]
/lib/aarch64-linux-gnu/librustc_driver-fe2d3f0c4114cdf4.so(+0x951d8c)[0x7f7e441d8c]
/lib/aarch64-linux-gnu/librustc_driver-fe2d3f0c4114cdf4.so(+0x92c114)[0x7f7e41c114]
/lib/aarch64-linux-gnu/librustc_driver-fe2d3f0c4114cdf4.so(+0x930d88)[0x7f7e420d88]
/lib/aarch64-linux-gnu/librustc_driver-fe2d3f0c4114cdf4.so(+0x925db4)[0x7f7e415db4]
/lib/aarch64-linux-gnu/librustc_driver-fe2d3f0c4114cdf4.so(+0x921230)[0x7f7e411230]
/lib/aarch64-linux-gnu/librustc_driver-fe2d3f0c4114cdf4.so(+0x80c0c0)[0x7f7e2fc0c0]
/lib/aarch64-linux-gnu/librustc_driver-fe2d3f0c4114cdf4.so(+0x8f6608)[0x7f7e3e6608]
/lib/aarch64-linux-gnu/libstd-4e83e61126e325db.so(rust_metadata_std_aeb45179e3b08762+0x9ffec)[0x7f7d9dffec]
/lib/aarch64-linux-gnu/libc.so.6(+0x7ee18)[0x7f7d80ee18]
/lib/aarch64-linux-gnu/libc.so.6(+0xe7e9c)[0x7f7d877e9c]
error: could not compile `proc-macro2`

Caused by:
  process didn't exit successfully: `rustc --crate-name build_script_build --edition=2021 /home/admin/.cargo/registry/src/github.com-1ecc6299db9ec823/proc-macro2-1.0.71/build.rs --error-format=json --json=diagnostic-rendered-ansi,artifac
ts,future-incompat --crate-type bin --emit=dep-info,link -C embed-bitcode=no -C debuginfo=2 --cfg 'feature="default"' --cfg 'feature="proc-macro"' -C metadata=c1ecfba7dfb1a977 -C extra-filename=-c1ecfba7dfb1a977 --out-dir /home/admin/rus
t/electrs/target/debug/build/proc-macro2-c1ecfba7dfb1a977 -L dependency=/home/admin/rust/electrs/target/debug/deps --cap-lints allow` (signal: 11, SIGSEGV: invalid memory reference)
/lib/aarch64-linux-gnu/librustc_driver-fe2d3f0c4114cdf4.so(+0x6c4430)[0x7f98494430]
linux-vdso.so.1(__kernel_rt_sigreturn+0x0)[0x7f9b4fa7bc]
/lib/aarch64-linux-gnu/libLLVM-14.so.1(+0x132a9f0)[0x7f92b0a9f0]
/lib/aarch64-linux-gnu/libLLVM-14.so.1(_ZN4llvm11raw_ostream5writeEPKcm+0x164)[0x7f9265b49c]                                                                                                                                                 /lib/aarch64-linux-gnu/libLLVM-14.so.1(_ZN4llvm9MCContext16createTempSymbolERKNS_5TwineEb+0xb4)[0x7f93a11048]                                                                                                                                /lib/aarch64-linux-gnu/libLLVM-14.so.1(_ZN4llvm10DwarfDebug11beginModuleEPNS_6ModuleE+0x494)[0x7f92e4dc48]
/lib/aarch64-linux-gnu/libLLVM-14.so.1(_ZN4llvm10AsmPrinter16doInitializationERNS_6ModuleE+0xaf4)[0x7f92e1b53c]
/lib/aarch64-linux-gnu/libLLVM-14.so.1(_ZN4llvm13FPPassManager16doInitializationERNS_6ModuleE+0x40)[0x7f927bafec]
/lib/aarch64-linux-gnu/libLLVM-14.so.1(_ZN4llvm6legacy15PassManagerImpl3runERNS_6ModuleE+0x26c)[0x7f927b4850]
/lib/aarch64-linux-gnu/librustc_driver-fe2d3f0c4114cdf4.so(+0x951d8c)[0x7f98721d8c]
/lib/aarch64-linux-gnu/librustc_driver-fe2d3f0c4114cdf4.so(+0x92c114)[0x7f986fc114]
/lib/aarch64-linux-gnu/librustc_driver-fe2d3f0c4114cdf4.so(+0x930d88)[0x7f98700d88]
/lib/aarch64-linux-gnu/librustc_driver-fe2d3f0c4114cdf4.so(+0x925db4)[0x7f986f5db4]
/lib/aarch64-linux-gnu/librustc_driver-fe2d3f0c4114cdf4.so(+0x921230)[0x7f986f1230]
/lib/aarch64-linux-gnu/librustc_driver-fe2d3f0c4114cdf4.so(+0x80c0c0)[0x7f985dc0c0]
/lib/aarch64-linux-gnu/librustc_driver-fe2d3f0c4114cdf4.so(+0x8f6608)[0x7f986c6608]
/lib/aarch64-linux-gnu/libstd-4e83e61126e325db.so(rust_metadata_std_aeb45179e3b08762+0x9ffec)[0x7f97cbffec]
/lib/aarch64-linux-gnu/libc.so.6(+0x7ee18)[0x7f97aeee18]
/lib/aarch64-linux-gnu/libc.so.6(+0xe7e9c)[0x7f97b57e9c]
error: could not compile `libc`

Caused by:
  process didn't exit successfully: `rustc --crate-name build_script_build /home/admin/.cargo/registry/src/github.com-1ecc6299db9ec823/libc-0.2.151/build.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --
crate-type bin --emit=dep-info,link -C embed-bitcode=no -C debuginfo=2 --cfg 'feature="default"' --cfg 'feature="std"' -C metadata=65744a22485bbeb5 -C extra-filename=-65744a22485bbeb5 --out-dir /home/admin/rust/electrs/target/debug/build
/libc-65744a22485bbeb5 -L dependency=/home/admin/rust/electrs/target/debug/deps --cap-lints allow` (signal: 11, SIGSEGV: invalid memory reference)```

[OvoNemaSmisla]

@OvoNemaSmisla Could you please try to install Rust via https://rustup.rs/ (instead of apt)?

Should I first uninstall cargo with sudo apt purge cargo or just install rustup with curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh?

[romanz]

Should I first uninstall cargo with sudo apt purge cargo or just install rustup with curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh?

Yep, let's try to uninstall first, and then install Rust from http://rustup.rs.

[OvoNemaSmisla]

Success! Finished release [optimized] target(s) in 602m 50s Thank you for your help!

Maybe another way to go about this is to cross compile on my Odroid N2 running with Ubuntu 18.04: uname -a Linux odroid 4.9.333-79 #1 SMP PREEMPT Tue Dec 6 22:41:40 -03 2022 aarch64 aarch64 aarch64 GNU/Linux lsb_release -a No LSB modules are available. Distributor ID: Ubuntu Description: Ubuntu 18.04.6 LTS Release: 18.04 Codename: bionic Or maybe it doesn't require cross compile at all and I can just copy the existing, compiled electrs version from Odroid?

Can you tell me if this option is valid as it takes way less time to compile on Odroin N2?

[romanz]

Success! Finished release [optimized] target(s) in 602m 50s Thank you for your help!

Cool, happy to help :)

[romanz]

Can you tell me if this option is valid as it takes way less time to compile on Odroin N2?

It should be possible if both platforms use the same CPU architecture, right @Kixunil?

@OvoNemaSmisla did you follow https://github.com/romanz/electrs/blob/master/doc/install.md for cross-compilation?

[OvoNemaSmisla]

I did, but since both Raspberry Pi 3b and Odroid N2 are aarch64 I thought that you actually don't need to cross compile. You can just copy the Odroid build to Raspberry Pi.

The difference is in the OS - rpi runs on Raspbian OS Lite 64 bit (which is Debian 12 afaik) and Odroid runs on Ubuntu 18.04 Bionic.

[romanz]

Got it - it indeed may fail due to some missing dependencies... Could you try and see if it works? :)

[Kixunil]

Uh, never seen an error like this. Probably should be reported to the Debian bug tracker. Yes, statically compiling on Odroid should be valid as long as it has compatible libc.

[OvoNemaSmisla]

Got it - it indeed may fail due to some missing dependencies... Could you try and see if it works? :)

Seems to be working with static compile from Odroid :)

I am getting these errors and warnings no matter what build I use:

Jan 17 22:25:02 raspibolt electrs[1597]: [2024-01-17T21:25:02.347Z WARN  electrs::mempool] mempool sync failed: failed to get mempool txids
Jan 17 22:25:30 raspibolt electrs[1597]: [2024-01-17T21:25:30.561Z WARN  electrs::mempool] mempool sync failed: batch request failed
Jan 17 22:25:57 raspibolt electrs[1597]: [2024-01-17T21:25:57.901Z WARN  electrs::mempool] mempool sync failed: batch request failed
Jan 17 22:32:41 raspibolt electrs[1597]: [2024-01-17T21:32:41.670Z INFO  electrs::index] indexing 1 blocks: [826179..826179]
Jan 17 22:33:00 raspibolt electrs[1597]: [2024-01-17T21:33:00.719Z INFO  electrs::chain] chain updated: tip=00000000000000000002dd0f418bd304d9d211434f724c5bd0f09dc12c5610a2, height=826179
Jan 17 22:33:00 raspibolt electrs[1597]: [2024-01-17T21:33:00.720Z ERROR electrs::server] 4: disconnecting due to failed to send response: "{\"id\":3,\"jsonrpc\":\"2.0\",\"result\":\"Welcome to electrs 0.10.2 (Electrum Rust Server)!\"}\n"
Jan 17 22:33:00 raspibolt electrs[1597]: [2024-01-17T21:33:00.720Z WARN  electrs::server] 4: failed to shutdown TCP connection Transport endpoint is not connected (os error 107)
Jan 17 22:34:58 raspibolt electrs[1597]: [2024-01-17T21:34:58.928Z WARN  electrs::mempool] mempool sync failed: batch request failed
Jan 17 22:38:20 raspibolt electrs[1597]: [2024-01-17T21:38:20.094Z INFO  electrs::index] indexing 1 blocks: [826180..826180]
Jan 17 22:38:39 raspibolt electrs[1597]: [2024-01-17T21:38:39.251Z INFO  electrs::chain] chain updated: tip=00000000000000000001f8bf4036019ea977de499a21f086464a7021b4a91c32, height=826180
Jan 17 22:44:40 raspibolt electrs[1597]: [2024-01-17T21:44:40.498Z WARN  electrs::mempool] mempool sync failed: batch request failed
Jan 17 22:45:08 raspibolt electrs[1597]: [2024-01-17T21:45:08.363Z WARN  electrs::mempool] mempool sync failed: failed to get mempool txids
Jan 17 22:45:35 raspibolt electrs[1597]: [2024-01-17T21:45:35.755Z WARN  electrs::mempool] mempool sync failed: failed to get mempool txids
Jan 17 22:47:50 raspibolt electrs[1597]: [2024-01-17T21:47:49.905Z WARN  electrs::mempool] mempool sync failed: batch request failed
Jan 17 22:48:51 raspibolt electrs[1597]: [2024-01-17T21:48:51.635Z WARN  electrs::mempool] mempool sync failed: batch request failed

[romanz]

It's possible that those warnings are related to #985.

[romanz]

@OvoNemaSmisla Please try https://github.com/romanz/electrs/pull/997 - it should help with mempool sync issues.

[OvoNemaSmisla]

Just to confirm, I should git checkout batch-refactor branch and build it?

[OvoNemaSmisla]

I've built the branch and this is what's happening now:

Starting electrs 0.10.2 on aarch64 linux with Config { network: Bitcoin, db_path: "/***/electrs/db/bitcoin", db_log_dir: None, daemon_dir: "/data/bitcoin/", daemon_auth: CookieFile("/***/bitcoin/.cookie"), daemon_rpc_addr: 127.0.0.1:8332, daemon_p2p_addr: 127.0.0.1:8333, electrum_rpc_addr: 127.0.0.1:50001, monitoring_addr: 127.0.0.1:4224, wait_duration: 10s, jsonrpc_timeout: 15s, index_batch_size: 10, index_lookup_limit: None, reindex_last_blocks: 0, auto_reindex: true, ignore_mempool: false, sync_once: false, skip_block_download_wait: false, disable_electrum_rpc: false, server_banner: "Welcome to electrs 0.10.2 (Electrum Rust Server)!", signet_magic: f9beb4d9, args: [] }
[2024-01-29T23:12:15.419Z DEBUG tiny_http] Server listening on 127.0.0.1:4224
[2024-01-29T23:12:15.420Z INFO  electrs::metrics::metrics_impl] serving Prometheus metrics on 127.0.0.1:4224
[2024-01-29T23:12:15.420Z INFO  electrs::server] serving Electrum RPC on 127.0.0.1:50001
[2024-01-29T23:12:15.423Z DEBUG tiny_http] Running accept thread
[2024-01-29T23:12:29.250Z INFO  electrs::db] "/data/electrs/db/bitcoin": 187 SST files, 45.491338687 GB, 5.685728016 Grows
[2024-01-29T23:12:29.254Z DEBUG electrs::db] DB Some(Config { compacted: true, format: 0 })
[2024-01-29T23:12:29.899Z DEBUG electrs::db] auto-compactions enabled
[2024-01-29T23:13:02.016Z INFO  electrs::chain] loading 827511 headers, tip=000000000000000000036993a90b102d15834b236e28ad8a3f45cf6ca39c2961
[2024-01-29T23:13:34.598Z INFO  electrs::chain] chain updated: tip=000000000000000000036993a90b102d15834b236e28ad8a3f45cf6ca39c2961, height=827511
[2024-01-29T23:13:34.799Z DEBUG bitcoincore_rpc] JSON-RPC request: getblockchaininfo []
[2024-01-29T23:13:49.812Z DEBUG bitcoincore_rpc] JSON-RPC failed parsing reply of getblockchaininfo: JsonRpc(Transport(SocketError(Os { code: 11, kind: WouldBlock, message: "Resource temporarily unavailable" })))
[2024-01-29T23:13:49.813Z INFO  electrs::db] closing DB at /data/electrs/db/bitcoin
Error: electrs failed

Caused by:
    0: bitcoind RPC polling failed
    1: daemon not available
    2: JSON-RPC error: transport error: Couldn't connect to host: Resource temporarily unavailable (os error 11)

Here is my config:

network = "bitcoin"
daemon_dir="/***/bitcoin/"
daemon_rpc_addr = "127.0.0.1:8332"
daemon_p2p_addr = "127.0.0.1:8333"

electrum_rpc_addr = "127.0.0.1:50001"
db_dir = "/***/electrs/db"

log_filters = "DEBUG"
timestamp = true

[Kixunil]

Resource temporarily unavailable

Sounds like some kind of OS error.

[romanz]

Success! Finished release [optimized] target(s) in 602m 50s Thank you for your help!

Closing :)