[INFO] fetching crate lmcpp 0.1.1...
[INFO] checking lmcpp-0.1.1 against try#66388cc165a6c4ac98c074dc9f0281ff23528c55 for pr-150727
[INFO] extracting crate lmcpp 0.1.1 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate lmcpp 0.1.1
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate lmcpp 0.1.1
[INFO] tweaked toml for crates.io crate lmcpp 0.1.1 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate lmcpp 0.1.1 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 crates.io crate lmcpp 0.1.1 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] b55e50bca86f6dc48677c95f19b5435ee3578890dec5d5cccfd00df131699505
[INFO] running `Command { std: "docker" "start" "-a" "b55e50bca86f6dc48677c95f19b5435ee3578890dec5d5cccfd00df131699505", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b55e50bca86f6dc48677c95f19b5435ee3578890dec5d5cccfd00df131699505", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b55e50bca86f6dc48677c95f19b5435ee3578890dec5d5cccfd00df131699505", kill_on_drop: false }`
[INFO] [stdout] b55e50bca86f6dc48677c95f19b5435ee3578890dec5d5cccfd00df131699505
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] fd7f10ea4b73b07b4787a970a2166ed9f8d65875e449e7df2092263fe1a5e7a5
[INFO] running `Command { std: "docker" "start" "-a" "fd7f10ea4b73b07b4787a970a2166ed9f8d65875e449e7df2092263fe1a5e7a5", kill_on_drop: false }`
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[INFO] [stderr] 
[INFO] [stderr] thread 'rustc' (2556) 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/client/completion.rs:121:5: 121:12 (#119), segments: [PathSegment { ident: <test_trace>#119, id: NodeId(4294967040), args: None }], tokens: None }, args: Unparsed(Empty), tokens: None }, tokens: None }), id: AttrId(2509), style: Outer, span: src/client/completion.rs:121:5: 121:12 (#119) }
[INFO] [stderr] stack backtrace:
[INFO] [stderr]    0:     0x777f4222bfa3 - <<std[7d609349af90bec6]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[75ca2badb63c4514]::fmt::Display>::fmt
[INFO] [stderr]    1:     0x777f4280fb48 - core[75ca2badb63c4514]::fmt::write
[INFO] [stderr]    2:     0x777f42242226 - <std[7d609349af90bec6]::sys::stdio::unix::Stderr as std[7d609349af90bec6]::io::Write>::write_fmt
[INFO] [stderr]    3:     0x777f42201b98 - std[7d609349af90bec6]::panicking::default_hook::{closure#0}
[INFO] [stderr]    4:     0x777f4221f833 - std[7d609349af90bec6]::panicking::default_hook
[INFO] [stderr]    5:     0x777f4120236a - std[7d609349af90bec6]::panicking::update_hook::<alloc[d7482eb0f1d19161]::boxed::Box<rustc_driver_impl[3f9d6dd912ac34bd]::install_ice_hook::{closure#1}>>::{closure#0}
[INFO] [stderr]    6:     0x777f4221fb12 - std[7d609349af90bec6]::panicking::panic_with_hook
[INFO] [stderr]    7:     0x777f42201c58 - std[7d609349af90bec6]::panicking::panic_handler::{closure#0}
[INFO] [stderr]    8:     0x777f421f89a9 - std[7d609349af90bec6]::sys::backtrace::__rust_end_short_backtrace::<std[7d609349af90bec6]::panicking::panic_handler::{closure#0}, !>
[INFO] [stderr]    9:     0x777f4220372d - __rustc[69841a6cbc58d81d]::rust_begin_unwind
[INFO] [stderr]   10:     0x777f3ee38f9c - core[75ca2badb63c4514]::panicking::panic_fmt
[INFO] [stderr]   11:     0x777f435e0110 - <rustc_ast[333fca09df5738a4]::ast::Attribute>::token_trees
[INFO] [stderr]   12:     0x777f43e1c314 - <rustc_expand[a01ffc1bf52c2613]::expand::MacroExpander>::fully_expand_fragment
[INFO] [stderr]   13:     0x777f43de65d2 - <rustc_expand[a01ffc1bf52c2613]::expand::MacroExpander>::expand_crate
[INFO] [stderr]   14:     0x777f42ef0af3 - rustc_interface[903e43df8d6bd657]::passes::configure_and_expand
[INFO] [stderr]   15:     0x777f43a07658 - rustc_interface[903e43df8d6bd657]::passes::resolver_for_lowering_raw
[INFO] [stderr]   16:     0x777f43a073cd - rustc_query_impl[8c5349e00d64015e]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[8c5349e00d64015e]::query_impl::resolver_for_lowering_raw::dynamic_query::{closure#2}::{closure#0}, rustc_middle[2342951a64deba5]::query::erase::Erased<[u8; 16usize]>>
[INFO] [stderr]   17:     0x777f43a073a7 - <rustc_query_impl[8c5349e00d64015e]::query_impl::resolver_for_lowering_raw::dynamic_query::{closure#2} as core[75ca2badb63c4514]::ops::function::FnOnce<(rustc_middle[2342951a64deba5]::ty::context::TyCtxt, ())>>::call_once
[INFO] [stderr]   18:     0x777f439ecb5f - rustc_query_system[d45be4fb383a0235]::query::plumbing::try_execute_query::<rustc_query_impl[8c5349e00d64015e]::DynamicConfig<rustc_query_system[d45be4fb383a0235]::query::caches::SingleCache<rustc_middle[2342951a64deba5]::query::erase::Erased<[u8; 16usize]>>, false, false, false>, rustc_query_impl[8c5349e00d64015e]::plumbing::QueryCtxt, false>
[INFO] [stderr]   19:     0x777f439ec6bc - rustc_query_impl[8c5349e00d64015e]::query_impl::resolver_for_lowering_raw::get_query_non_incr::__rust_end_short_backtrace
[INFO] [stderr]   20:     0x777f43b7127b - <rustc_interface[903e43df8d6bd657]::passes::create_and_enter_global_ctxt<core[75ca2badb63c4514]::option::Option<rustc_interface[903e43df8d6bd657]::queries::Linker>, 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<rustc_data_structures[c82a87ce5cdbfc92]::jobserver::Proxy>, &std[7d609349af90bec6]::sync::once_lock::OnceLock<rustc_middle[2342951a64deba5]::ty::context::GlobalCtxt>, &rustc_data_structures[c82a87ce5cdbfc92]::sync::worker_local::WorkerLocal<rustc_middle[2342951a64deba5]::arena::Arena>, &rustc_data_structures[c82a87ce5cdbfc92]::sync::worker_local::WorkerLocal<rustc_hir[cc727ec2ba6ebdb5]::Arena>, rustc_driver_impl[3f9d6dd912ac34bd]::run_compiler::{closure#0}::{closure#2})>>::call_once::{shim:vtable#0}
[INFO] [stderr]   21:     0x777f43a5ac98 - rustc_interface[903e43df8d6bd657]::interface::run_compiler::<(), rustc_driver_impl[3f9d6dd912ac34bd]::run_compiler::{closure#0}>::{closure#1}
[INFO] [stderr]   22:     0x777f438eac4e - std[7d609349af90bec6]::sys::backtrace::__rust_begin_short_backtrace::<rustc_interface[903e43df8d6bd657]::util::run_in_thread_with_globals<rustc_interface[903e43df8d6bd657]::util::run_in_thread_pool_with_globals<rustc_interface[903e43df8d6bd657]::interface::run_compiler<(), rustc_driver_impl[3f9d6dd912ac34bd]::run_compiler::{closure#0}>::{closure#1}, ()>::{closure#0}, ()>::{closure#0}::{closure#0}, ()>
[INFO] [stderr]   23:     0x777f438eaa20 - <std[7d609349af90bec6]::thread::lifecycle::spawn_unchecked<rustc_interface[903e43df8d6bd657]::util::run_in_thread_with_globals<rustc_interface[903e43df8d6bd657]::util::run_in_thread_pool_with_globals<rustc_interface[903e43df8d6bd657]::interface::run_compiler<(), rustc_driver_impl[3f9d6dd912ac34bd]::run_compiler::{closure#0}>::{closure#1}, ()>::{closure#0}, ()>::{closure#0}::{closure#0}, ()>::{closure#1} as core[75ca2badb63c4514]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
[INFO] [stderr]   24:     0x777f438ed138 - <std[7d609349af90bec6]::sys::thread::unix::Thread>::new::thread_start
[INFO] [stderr]   25:     0x777f3d48aaa4 - <unknown>
[INFO] [stderr]   26:     0x777f3d517a64 - clone
[INFO] [stderr]   27:                0x0 - <unknown>
[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-2026-01-08T20_36_36-2551.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 `lmcpp` (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 lmcpp --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 --test --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values())' -C metadata=7d91e4202917749a -C extra-filename=-72c5cb3a267510ef --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern anyhow=/opt/rustwide/target/debug/deps/libanyhow-9e60a9f33eb513b3.rmeta --extern assert_cmd=/opt/rustwide/target/debug/deps/libassert_cmd-4595d9be158de3fb.rmeta --extern bon=/opt/rustwide/target/debug/deps/libbon-833572c4e1657c2f.rmeta --extern clap=/opt/rustwide/target/debug/deps/libclap-3256e46e0184e2b0.rmeta --extern cmdstruct=/opt/rustwide/target/debug/deps/libcmdstruct-9227b4af0c6273b1.rmeta --extern confy=/opt/rustwide/target/debug/deps/libconfy-1d9d6cbc6a3aaecd.rmeta --extern ctrlc=/opt/rustwide/target/debug/deps/libctrlc-1d8fc7b0522e702f.rmeta --extern directories=/opt/rustwide/target/debug/deps/libdirectories-5881ecbf91c8d318.rmeta --extern fs4=/opt/rustwide/target/debug/deps/libfs4-25ee824756fd8163.rmeta --extern indenter=/opt/rustwide/target/debug/deps/libindenter-54a60a1a8af25038.rmeta --extern llm_models=/opt/rustwide/target/debug/deps/libllm_models-8397917220cef9f4.rmeta --extern mockito=/opt/rustwide/target/debug/deps/libmockito-a9f854d64f15d817.rmeta --extern nix=/opt/rustwide/target/debug/deps/libnix-3288a8f1731b77c2.rmeta --extern nvml_wrapper=/opt/rustwide/target/debug/deps/libnvml_wrapper-5e7daab28fac234e.rmeta --extern predicates=/opt/rustwide/target/debug/deps/libpredicates-7e58f19f8901349c.rmeta --extern sanitize_filename=/opt/rustwide/target/debug/deps/libsanitize_filename-38b1bed90d80c75b.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-a0e4a370d4ab7e1f.rmeta --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-fdc9db2d78c7f2bf.rmeta --extern serial_test=/opt/rustwide/target/debug/deps/libserial_test-e4ea1f5de7b1b7c2.rmeta --extern socket2=/opt/rustwide/target/debug/deps/libsocket2-73fd68d22db7a4fa.rmeta --extern sysinfo=/opt/rustwide/target/debug/deps/libsysinfo-fe59ab7463447e01.rmeta --extern tempfile=/opt/rustwide/target/debug/deps/libtempfile-3ca33bd31347476c.rmeta --extern thiserror=/opt/rustwide/target/debug/deps/libthiserror-8093f3f0b1cb5bd3.rmeta --extern tracing=/opt/rustwide/target/debug/deps/libtracing-6b530f5bba5990f7.rmeta --extern ureq=/opt/rustwide/target/debug/deps/libureq-42b6b9ca41b278c1.rmeta --extern url=/opt/rustwide/target/debug/deps/liburl-722ebe5ebb2d1189.rmeta --extern uuid=/opt/rustwide/target/debug/deps/libuuid-d5cc9e329c91a94c.rmeta --extern wait_timeout=/opt/rustwide/target/debug/deps/libwait_timeout-709b795def150dae.rmeta --extern zip=/opt/rustwide/target/debug/deps/libzip-c4e1b042fbd2ddd3.rmeta --cap-lints=forbid -L native=/opt/rustwide/target/debug/build/ring-358959f58d03e4eb/out -L native=/opt/rustwide/target/debug/build/liblzma-sys-8b148beb75f4e76d/out -L native=/opt/rustwide/target/debug/build/zstd-sys-ef79f415bd9a130a/out` (exit status: 101)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "fd7f10ea4b73b07b4787a970a2166ed9f8d65875e449e7df2092263fe1a5e7a5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fd7f10ea4b73b07b4787a970a2166ed9f8d65875e449e7df2092263fe1a5e7a5", kill_on_drop: false }`
[INFO] [stdout] fd7f10ea4b73b07b4787a970a2166ed9f8d65875e449e7df2092263fe1a5e7a5