Open gtema opened 4 months ago
@gtema Can you be more precise about resources? Drive space? RAM?
I ask because the issue you mention is in the frontend, and as I understand it, the parallel frontend is not actually used by default (it is technically active but in single-threaded mode).
16G RAM and around 70Gb free disk (which is full in few weeks of project development, 2cpu (older i5)
Hmmm, that's a bit low on the disk side but not so much that I would expect compiling to simply fail like that. I don't think the resources available are the problem, based on your description, as much weaker CPUs, with less RAM, and less disk, successfully compile projects.
Do you have to use ccache? The Rust compiler has its own incremental logic, and the panic here is firmly inside the "restore from previously-cached incremental compilation metadata" logic.
Scache is not mandatory, was just hoping to speed compilation up (since it takes around 5-7 minutes). I was suspecting the issue may lay in cache itself, since usually cargo clean helps to solve the situation for few days.
Oh, sccache?
Yeah, autocorrect fixed it (facepalm) it's sccache
Sadly I can't present a code, since it happens during compiling of a pretty big project on a system with low resources (2cpu). The error is not reproducible and happens usually when system is under pressure.
Meta
rustc --version --verbose
:sccache is also being used.
Backtrace
``` thread 'rustc' panicked at compiler/rustc_metadata/src/rmeta/decoder.rs:456:36: Missing SyntaxContext 1802102 for crate "openstack_cli" stack backtrace: stack backtrace: 0: 0x7f228b0b4892 - std::backtrace_rs::backtrace::libunwind::trace::he4ee80166a02c846 at /rustc/9b00956e56009bab2aa15d7bff10916599e3d6d6/library/std/src/../../backtrace/src/backtrace/libunwind.rs:105:5 1: 0x7f228b0b4892 - std::backtrace_rs::backtrace::trace_unsynchronized::h476faccf57e88641 at /rustc/9b00956e56009bab2aa15d7bff10916599e3d6d6/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5 2: 0x7f228b0b4892 - std::sys_common::backtrace::_print_fmt::h430c922a77e7a59c at /rustc/9b00956e56009bab2aa15d7bff10916599e3d6d6/library/std/src/sys_common/backtrace.rs:68:5 3: 0x7f228b0b4892 -::fmt::hffecb437d922f988
at /rustc/9b00956e56009bab2aa15d7bff10916599e3d6d6/library/std/src/sys_common/backtrace.rs:44:22
4: 0x7f228b105a6c - core::fmt::rt::Argument::fmt::hf3df69369399bfa9
at /rustc/9b00956e56009bab2aa15d7bff10916599e3d6d6/library/core/src/fmt/rt.rs:142:9
5: 0x7f228b105a6c - core::fmt::write::hd9a8d7d029f9ea1a
at /rustc/9b00956e56009bab2aa15d7bff10916599e3d6d6/library/core/src/fmt/mod.rs:1153:17
6: 0x7f228b0a978f - std::io::Write::write_fmt::h0e1226b2b8d973fe
at /rustc/9b00956e56009bab2aa15d7bff10916599e3d6d6/library/std/src/io/mod.rs:1843:15
7: 0x7f228b0b4664 - std::sys_common::backtrace::_print::hd2df4a083f6e69b8
at /rustc/9b00956e56009bab2aa15d7bff10916599e3d6d6/library/std/src/sys_common/backtrace.rs:47:5
8: 0x7f228b0b4664 - std::sys_common::backtrace::print::he907f6ad7eee41cb
at /rustc/9b00956e56009bab2aa15d7bff10916599e3d6d6/library/std/src/sys_common/backtrace.rs:34:9
9: 0x7f228b0b735b - std::panicking::default_hook::{{closure}}::h3926193b61c9ca9b
10: 0x7f228b0b70b3 - std::panicking::default_hook::h25ba2457dea68e65
at /rustc/9b00956e56009bab2aa15d7bff10916599e3d6d6/library/std/src/panicking.rs:292:9
11: 0x7f2287e2845d - std[e4dfbc2c3f4b09f1]::panicking::update_hook::>::{closure#0}
12: 0x7f228b0b7ac0 - as core::ops::function::Fn>::call::h022ca2c0d8c21c9e
at /rustc/9b00956e56009bab2aa15d7bff10916599e3d6d6/library/alloc/src/boxed.rs:2034:9
13: 0x7f228b0b7ac0 - std::panicking::rust_panic_with_hook::h0ad14d90dcf5224f
at /rustc/9b00956e56009bab2aa15d7bff10916599e3d6d6/library/std/src/panicking.rs:783:13
14: 0x7f228b0b7802 - std::panicking::begin_panic_handler::{{closure}}::h4a1838a06f542647
at /rustc/9b00956e56009bab2aa15d7bff10916599e3d6d6/library/std/src/panicking.rs:657:13
15: 0x7f228b0b4d66 - std::sys_common::backtrace::__rust_end_short_backtrace::h77cc4dc3567ca904
at /rustc/9b00956e56009bab2aa15d7bff10916599e3d6d6/library/std/src/sys_common/backtrace.rs:171:18
16: 0x7f228b0b7534 - rust_begin_unwind
at /rustc/9b00956e56009bab2aa15d7bff10916599e3d6d6/library/std/src/panicking.rs:645:5
17: 0x7f228b101f85 - core::panicking::panic_fmt::h940d4fd01a4b4fd1
at /rustc/9b00956e56009bab2aa15d7bff10916599e3d6d6/library/core/src/panicking.rs:72:14
18: 0x7f22891cd967 - ::decode_syntax_context
19: 0x7f22891ceef1 - ::decode_span
20: 0x7f22891c67fb - >::decode
21: 0x7f228970423d - rustc_metadata[70192afe97828208]::rmeta::decoder::cstore_impl::provide_extern::optimized_mir
22: 0x7f2289703fad - rustc_query_impl[e4152ad88c3d6c78]::plumbing::__rust_begin_short_backtrace::>
23: 0x7f2289394c99 - rustc_query_system[475239fef39bf53f]::query::plumbing::try_execute_query::>, false, false, false>, rustc_query_impl[e4152ad88c3d6c78]::plumbing::QueryCtxt, true>
24: 0x7f2289c46f59 - rustc_query_impl[e4152ad88c3d6c78]::plumbing::force_from_dep_node::>, false, false, false>>
25: 0x7f22885cafcd - ::{closure#0} as core[836963c7c1decc11]::ops::function::FnOnce<(rustc_middle[fda44fdb505d3e7f]::ty::context::TyCtxt, rustc_query_system[475239fef39bf53f]::dep_graph::dep_node::DepNode)>>::call_once
26: 0x7f2289029055 - >::try_mark_previous_green::
27: 0x7f2289028fbd - >::try_mark_previous_green::
28: 0x7f2289028fbd - >::try_mark_previous_green::
29: 0x7f2289028fbd - >::try_mark_previous_green::
30: 0x7f2289028fbd - >::try_mark_previous_green::
31: 0x7f2289028fbd - >::try_mark_previous_green::
32: 0x7f2289028fbd - >::try_mark_previous_green::
33: 0x7f2289028fbd - >::try_mark_previous_green::
34: 0x7f2289028fbd - >::try_mark_previous_green::
35: 0x7f2289028fbd - >::try_mark_previous_green::
36: 0x7f2289028fbd - >::try_mark_previous_green::
37: 0x7f2289028fbd - >::try_mark_previous_green::
38: 0x7f2289028fbd - >::try_mark_previous_green::
39: 0x7f2289028fbd - >::try_mark_previous_green::
40: 0x7f2289028fbd - >::try_mark_previous_green::
41: 0x7f2289028fbd - >::try_mark_previous_green::
42: 0x7f2289028fbd - >::try_mark_previous_green::
43: 0x7f2289390b19 - rustc_query_system[475239fef39bf53f]::query::plumbing::ensure_must_run::>, false, false, false>, rustc_query_impl[e4152ad88c3d6c78]::plumbing::QueryCtxt>
44: 0x7f2289390cb7 - rustc_query_impl[e4152ad88c3d6c78]::query_impl::mir_drops_elaborated_and_const_checked::get_query_incr::__rust_end_short_backtrace
45: 0x7f2289912284 - rustc_interface[ba2b6dc4c96cb491]::passes::analysis
46: 0x7f22899118e5 - rustc_query_impl[e4152ad88c3d6c78]::plumbing::__rust_begin_short_backtrace::>
47: 0x7f2289e9d375 - rustc_query_system[475239fef39bf53f]::query::plumbing::try_execute_query::>, false, false, false>, rustc_query_impl[e4152ad88c3d6c78]::plumbing::QueryCtxt, true>
48: 0x7f2289e9cf9c - rustc_query_impl[e4152ad88c3d6c78]::query_impl::analysis::get_query_incr::__rust_end_short_backtrace
49: 0x7f2289bfc814 - rustc_interface[ba2b6dc4c96cb491]::interface::run_compiler::, rustc_driver_impl[24a943716c49befe]::run_compiler::{closure#0}>::{closure#0}
50: 0x7f2289f3eb6e - std[e4dfbc2c3f4b09f1]::sys_common::backtrace::__rust_begin_short_backtrace::, rustc_driver_impl[24a943716c49befe]::run_compiler::{closure#0}>::{closure#0}, core[836963c7c1decc11]::result::Result<(), rustc_span[a4517f2b2e65298c]::ErrorGuaranteed>>::{closure#0}::{closure#0}, core[836963c7c1decc11]::result::Result<(), rustc_span[a4517f2b2e65298c]::ErrorGuaranteed>>
51: 0x7f2289f3e9ca - <::spawn_unchecked_, rustc_driver_impl[24a943716c49befe]::run_compiler::{closure#0}>::{closure#0}, core[836963c7c1decc11]::result::Result<(), rustc_span[a4517f2b2e65298c]::ErrorGuaranteed>>::{closure#0}::{closure#0}, core[836963c7c1decc11]::result::Result<(), rustc_span[a4517f2b2e65298c]::ErrorGuaranteed>>::{closure#1} as core[836963c7c1decc11]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
52: 0x7f228b0c1145 - as core::ops::function::FnOnce>::call_once::h19b9e642d37e7272
at /rustc/9b00956e56009bab2aa15d7bff10916599e3d6d6/library/alloc/src/boxed.rs:2020:9
53: 0x7f228b0c1145 - as core::ops::function::FnOnce>::call_once::h97265befc434d3ae
at /rustc/9b00956e56009bab2aa15d7bff10916599e3d6d6/library/alloc/src/boxed.rs:2020:9
54: 0x7f228b0c1145 - std::sys::pal::unix::thread::Thread::new::thread_start::h420dad5cf01a9f35
at /rustc/9b00956e56009bab2aa15d7bff10916599e3d6d6/library/std/src/sys/pal/unix/thread.rs:108:17
55: 0x7f2284ea91b7 - start_thread
56: 0x7f2284f2b39c - __GI___clone3
57: 0x0 -
note: Some details are omitted, run with `RUST_BACKTRACE=full` for a verbose backtrace.
error: the compiler unexpectedly panicked. this is a bug.
note: we would appreciate a bug report: https://github.com/rust-lang/rust/issues/new?labels=C-bug%2C+I-ICE%2C+T-compiler&template=ice.md
note: rustc 1.78.0 (9b00956e5 2024-04-29) running on x86_64-unknown-linux-gnu
note: compiler flags: --crate-type bin -C embed-bitcode=no -C incremental=[REDACTED] -C strip=debuginfo
note: some of the compiler flags provided by cargo are hidden
query stack during panic:
#0 [optimized_mir] optimizing MIR for `openstack_cli::block_storage::v3::default_type::delete::DefaultTypeCommand::take_action::{closure#0}`
#1 [analysis] running analysis passes on this crate
end of query stack
there was a panic while trying to force a dep node
try_mark_green dep node stack:
#0 layout_of(50ce6e0430ea69d8-317261177dcface1)
#1 layout_of(4b1552e6bd747bc7-77ed0138a8d8d645)
#2 layout_of(4cf13c39e951339c-f5f82044666e223f)
#3 layout_of(a3dee3b30cf808c3-3a6e021221241706)
#4 layout_of(4f91719f6ca70abc-493fafac069970d0)
#5 layout_of(3a384e266c18be90-4b0fe244ec915ac2)
#6 layout_of(48ac620664a682ba-c326f5cce3af088)
#7 layout_of(c18751150576cec9-e8b4b127eac2f2e7)
#8 layout_of(234adbd073a917ac-5c716200772537f2)
#9 layout_of(706049fc7405dae3-3b7d1f7e90c1813c)
#10 layout_of(b81958a840e0f712-671f505983d84ea9)
#11 layout_of(e3beb139c38be6b4-f1976512ea2c9908)
#12 layout_of(5d504ab8a3fd0739-19489422ee55769e)
#13 layout_of(b2bb3ff529cfa3e0-747f09f5629d4e4a)
#14 layout_of(76aebd48c2d3fdb8-17f748b1343b4bbe)
#15 layout_of(b5b33ee778414687-f240d2dfa2fe6a1a)
#16 mir_drops_elaborated_and_const_checked(osc[a3b8]::main)
end of try_mark_green dep node stack
error: could not compile `openstack_cli` (bin "osc")
```