[INFO] cloning repository https://github.com/oguzbilgener/cgroups-explorer [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/oguzbilgener/cgroups-explorer" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Foguzbilgener%2Fcgroups-explorer", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Foguzbilgener%2Fcgroups-explorer'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 5a08811ca9a5b0eca0e40d02f4c4a52b554ec6ef [INFO] checking oguzbilgener/cgroups-explorer against try#66388cc165a6c4ac98c074dc9f0281ff23528c55 for pr-150727 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Foguzbilgener%2Fcgroups-explorer" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'... [INFO] [stderr] done. [INFO] removed /workspace/builds/worker-4-tc2/source/.cargo/config.toml [INFO] started tweaking git repo https://github.com/oguzbilgener/cgroups-explorer [INFO] finished tweaking git repo https://github.com/oguzbilgener/cgroups-explorer [INFO] tweaked toml for git repo https://github.com/oguzbilgener/cgroups-explorer written to /workspace/builds/worker-4-tc2/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/oguzbilgener/cgroups-explorer on toolchain 66388cc165a6c4ac98c074dc9f0281ff23528c55 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+66388cc165a6c4ac98c074dc9f0281ff23528c55" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/oguzbilgener/cgroups-explorer already has a lockfile, it will not be regenerated [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+66388cc165a6c4ac98c074dc9f0281ff23528c55" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+66388cc165a6c4ac98c074dc9f0281ff23528c55" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 3845bfd825abeb503615bc9df044b2358b96acae89db0ba2f34c8225b5fc4a2e [INFO] running `Command { std: "docker" "start" "-a" "3845bfd825abeb503615bc9df044b2358b96acae89db0ba2f34c8225b5fc4a2e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "3845bfd825abeb503615bc9df044b2358b96acae89db0ba2f34c8225b5fc4a2e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "3845bfd825abeb503615bc9df044b2358b96acae89db0ba2f34c8225b5fc4a2e", kill_on_drop: false }` [INFO] [stdout] 3845bfd825abeb503615bc9df044b2358b96acae89db0ba2f34c8225b5fc4a2e [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+66388cc165a6c4ac98c074dc9f0281ff23528c55" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 653db904348a8d2fcdc231d466b1933bfcac3d0b43e32655a9d2561be9ba4cc0 [INFO] running `Command { std: "docker" "start" "-a" "653db904348a8d2fcdc231d466b1933bfcac3d0b43e32655a9d2561be9ba4cc0", kill_on_drop: false }` [INFO] [stderr] Compiling unicode-ident v1.0.17 [INFO] [stderr] Compiling fnv v1.0.7 [INFO] [stderr] Compiling strsim v0.11.1 [INFO] [stderr] Compiling ident_case v1.0.1 [INFO] [stderr] Checking aho-corasick v1.1.3 [INFO] [stderr] Checking futures-sink v0.3.31 [INFO] [stderr] Checking futures-core v0.3.31 [INFO] [stderr] Checking log v0.4.26 [INFO] [stderr] Compiling proc-macro2 v1.0.93 [INFO] [stderr] Checking futures-io v0.3.31 [INFO] [stderr] Checking nix v0.25.1 [INFO] [stderr] Checking smallvec v1.14.0 [INFO] [stderr] Checking glob v0.3.2 [INFO] [stderr] Checking futures-channel v0.3.31 [INFO] [stderr] Checking sdd v3.0.8 [INFO] [stderr] Compiling anyhow v1.0.97 [INFO] [stderr] Checking parking_lot_core v0.9.10 [INFO] [stderr] Checking futures-util v0.3.31 [INFO] [stderr] Checking once_cell v1.21.1 [INFO] [stderr] Checking parking_lot v0.12.3 [INFO] [stderr] Checking scc v2.3.3 [INFO] [stderr] Compiling quote v1.0.38 [INFO] [stderr] Compiling syn v2.0.98 [INFO] [stderr] Checking regex-automata v0.4.9 [INFO] [stderr] Checking regex v1.11.1 [INFO] [stderr] Checking futures-executor v0.3.31 [INFO] [stderr] Checking futures v0.3.31 [INFO] [stderr] Compiling darling_core v0.20.10 [INFO] [stderr] Compiling thiserror-impl v1.0.69 [INFO] [stderr] Compiling serial_test_derive v3.2.0 [INFO] [stderr] Checking serial_test v3.2.0 [INFO] [stderr] Checking thiserror v1.0.69 [INFO] [stderr] Checking cgroups-rs v0.3.4 [INFO] [stderr] Compiling darling_macro v0.20.10 [INFO] [stderr] Compiling darling v0.20.10 [INFO] [stderr] Compiling derive_builder_core v0.20.2 [INFO] [stderr] Compiling derive_builder_macro v0.20.2 [INFO] [stderr] Checking derive_builder v0.20.2 [INFO] [stderr] Checking cgroups-explorer v0.4.1 (/opt/rustwide/workdir) [INFO] [stderr] [INFO] [stderr] thread 'rustc' (397) panicked at /rustc-dev/66388cc165a6c4ac98c074dc9f0281ff23528c55/compiler/rustc_ast/src/attr/mod.rs:302:36: [INFO] [stderr] attribute is missing tokens: Attribute { kind: Normal(NormalAttr { item: AttrItem { unsafety: Default, path: Path { span: src/tests.rs:9:1: 9:8 (#17), segments: [PathSegment { ident: #17, id: NodeId(4294967040), args: None }], tokens: None }, args: Unparsed(Empty), tokens: None }, tokens: None }), id: AttrId(99), style: Outer, span: src/tests.rs:9:1: 9:8 (#17) } [INFO] [stderr] stack backtrace: [INFO] [stderr] 0: 0x7980db02bfa3 - <::print::DisplayBacktrace as core[75ca2badb63c4514]::fmt::Display>::fmt [INFO] [stderr] 1: 0x7980db60fb48 - core[75ca2badb63c4514]::fmt::write [INFO] [stderr] 2: 0x7980db042226 - ::write_fmt [INFO] [stderr] 3: 0x7980db001b98 - std[7d609349af90bec6]::panicking::default_hook::{closure#0} [INFO] [stderr] 4: 0x7980db01f833 - std[7d609349af90bec6]::panicking::default_hook [INFO] [stderr] 5: 0x7980da00236a - std[7d609349af90bec6]::panicking::update_hook::>::{closure#0} [INFO] [stderr] 6: 0x7980db01fb12 - std[7d609349af90bec6]::panicking::panic_with_hook [INFO] [stderr] 7: 0x7980db001c58 - std[7d609349af90bec6]::panicking::panic_handler::{closure#0} [INFO] [stderr] 8: 0x7980daff89a9 - std[7d609349af90bec6]::sys::backtrace::__rust_end_short_backtrace:: [INFO] [stderr] 9: 0x7980db00372d - __rustc[69841a6cbc58d81d]::rust_begin_unwind [INFO] [stderr] 10: 0x7980d7c38f9c - core[75ca2badb63c4514]::panicking::panic_fmt [INFO] [stderr] 11: 0x7980dc3e0110 - ::token_trees [INFO] [stderr] 12: 0x7980dcc1c314 - ::fully_expand_fragment [INFO] [stderr] 13: 0x7980dcbe65d2 - ::expand_crate [INFO] [stderr] 14: 0x7980dbcf0af3 - rustc_interface[903e43df8d6bd657]::passes::configure_and_expand [INFO] [stderr] 15: 0x7980dc807658 - rustc_interface[903e43df8d6bd657]::passes::resolver_for_lowering_raw [INFO] [stderr] 16: 0x7980dc8073cd - rustc_query_impl[8c5349e00d64015e]::plumbing::__rust_begin_short_backtrace::> [INFO] [stderr] 17: 0x7980dc8073a7 - >::call_once [INFO] [stderr] 18: 0x7980dc7ecb5f - rustc_query_system[d45be4fb383a0235]::query::plumbing::try_execute_query::>, false, false, false>, rustc_query_impl[8c5349e00d64015e]::plumbing::QueryCtxt, false> [INFO] [stderr] 19: 0x7980dc7ec6bc - rustc_query_impl[8c5349e00d64015e]::query_impl::resolver_for_lowering_raw::get_query_non_incr::__rust_end_short_backtrace [INFO] [stderr] 20: 0x7980dc97127b - , rustc_driver_impl[3f9d6dd912ac34bd]::run_compiler::{closure#0}::{closure#2}>::{closure#2} as core[75ca2badb63c4514]::ops::function::FnOnce<(&rustc_session[1e6875ba352dc1ba]::session::Session, rustc_middle[2342951a64deba5]::ty::context::CurrentGcx, alloc[d7482eb0f1d19161]::sync::Arc, &std[7d609349af90bec6]::sync::once_lock::OnceLock, &rustc_data_structures[c82a87ce5cdbfc92]::sync::worker_local::WorkerLocal, &rustc_data_structures[c82a87ce5cdbfc92]::sync::worker_local::WorkerLocal, rustc_driver_impl[3f9d6dd912ac34bd]::run_compiler::{closure#0}::{closure#2})>>::call_once::{shim:vtable#0} [INFO] [stderr] 21: 0x7980dc85ac98 - rustc_interface[903e43df8d6bd657]::interface::run_compiler::<(), rustc_driver_impl[3f9d6dd912ac34bd]::run_compiler::{closure#0}>::{closure#1} [INFO] [stderr] 22: 0x7980dc6eac4e - std[7d609349af90bec6]::sys::backtrace::__rust_begin_short_backtrace::::{closure#1}, ()>::{closure#0}, ()>::{closure#0}::{closure#0}, ()> [INFO] [stderr] 23: 0x7980dc6eaa20 - ::{closure#1}, ()>::{closure#0}, ()>::{closure#0}::{closure#0}, ()>::{closure#1} as core[75ca2badb63c4514]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0} [INFO] [stderr] 24: 0x7980dc6ed138 - ::new::thread_start [INFO] [stderr] 25: 0x7980d628aaa4 - [INFO] [stderr] 26: 0x7980d6317a64 - clone [INFO] [stderr] 27: 0x0 - [INFO] [stderr] [INFO] [stderr] error: the compiler unexpectedly panicked. this is a bug. [INFO] [stderr] [INFO] [stderr] 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 [INFO] [stderr] [INFO] [stderr] note: please make sure that you have updated to the latest nightly [INFO] [stderr] [INFO] [stderr] warning: the ICE couldn't be written to `/opt/rustwide/workdir/rustc-ice-2026-01-09T20_21_45-394.txt`: Read-only file system (os error 30) [INFO] [stderr] [INFO] [stderr] note: rustc 1.94.0-nightly (66388cc16 2026-01-08) running on x86_64-unknown-linux-gnu [INFO] [stderr] [INFO] [stderr] note: compiler flags: -C embed-bitcode=no -C debuginfo=2 [INFO] [stderr] [INFO] [stderr] note: some of the compiler flags provided by cargo are hidden [INFO] [stderr] [INFO] [stderr] query stack during panic: [INFO] [stderr] #0 [resolver_for_lowering_raw] getting the resolver for lowering [INFO] [stderr] end of query stack [INFO] [stderr] error: could not compile `cgroups-explorer` (lib test) [INFO] [stderr] [INFO] [stderr] Caused by: [INFO] [stderr] process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/66388cc165a6c4ac98c074dc9f0281ff23528c55/bin/rustc --crate-name cgroups_explorer --edition=2024 src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --emit=dep-info,metadata -C embed-bitcode=no -C debuginfo=2 --forbid=unsafe_code '--warn=clippy::pedantic' --warn=missing_docs '--warn=clippy::cargo' '--warn=clippy::all' --test --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values("regex", "serde"))' -C metadata=510081d4068a08e8 -C extra-filename=-55c5f2b3f0f392c7 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern anyhow=/opt/rustwide/target/debug/deps/libanyhow-e8f9025ee4aa625d.rmeta --extern cgroups_rs=/opt/rustwide/target/debug/deps/libcgroups_rs-593d8ed18a44b5ca.rmeta --extern derive_builder=/opt/rustwide/target/debug/deps/libderive_builder-a7a463610200048b.rmeta --extern glob=/opt/rustwide/target/debug/deps/libglob-5172333455edc701.rmeta --extern serial_test=/opt/rustwide/target/debug/deps/libserial_test-551fe01c4ef63290.rmeta --extern walkdir=/opt/rustwide/target/debug/deps/libwalkdir-1278d11b181efceb.rmeta --cap-lints=forbid` (exit status: 101) [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] running `Command { std: "docker" "inspect" "653db904348a8d2fcdc231d466b1933bfcac3d0b43e32655a9d2561be9ba4cc0", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "653db904348a8d2fcdc231d466b1933bfcac3d0b43e32655a9d2561be9ba4cc0", kill_on_drop: false }` [INFO] [stdout] 653db904348a8d2fcdc231d466b1933bfcac3d0b43e32655a9d2561be9ba4cc0