[INFO] cloning repository https://github.com/tobias-walle/pty-demo [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tobias-walle/pty-demo" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftobias-walle%2Fpty-demo", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftobias-walle%2Fpty-demo'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 659af2164e993bd57ee8f85d2807edde3544426a [INFO] checking tobias-walle/pty-demo against try#66388cc165a6c4ac98c074dc9f0281ff23528c55 for pr-150727 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftobias-walle%2Fpty-demo" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/tobias-walle/pty-demo [INFO] finished tweaking git repo https://github.com/tobias-walle/pty-demo [INFO] tweaked toml for git repo https://github.com/tobias-walle/pty-demo written to /workspace/builds/worker-4-tc2/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/tobias-walle/pty-demo 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/tobias-walle/pty-demo 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-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] fbbf84335ccec412102b9b4199feb5dd6dbc6e184b8e0b58c88eb8a8f2fd2c37 [INFO] running `Command { std: "docker" "start" "-a" "fbbf84335ccec412102b9b4199feb5dd6dbc6e184b8e0b58c88eb8a8f2fd2c37", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "fbbf84335ccec412102b9b4199feb5dd6dbc6e184b8e0b58c88eb8a8f2fd2c37", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "fbbf84335ccec412102b9b4199feb5dd6dbc6e184b8e0b58c88eb8a8f2fd2c37", kill_on_drop: false }` [INFO] [stdout] fbbf84335ccec412102b9b4199feb5dd6dbc6e184b8e0b58c88eb8a8f2fd2c37 [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] 012c9ea7f166c0c9c4cd4a76198d794b245a986bb4b885585707f35fb736eac8 [INFO] running `Command { std: "docker" "start" "-a" "012c9ea7f166c0c9c4cd4a76198d794b245a986bb4b885585707f35fb736eac8", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.177 [INFO] [stderr] Checking log v0.4.28 [INFO] [stderr] Compiling rustix v1.1.2 [INFO] [stderr] Checking aho-corasick v1.1.4 [INFO] [stderr] Compiling memoffset v0.7.1 [INFO] [stderr] Checking futures-sink v0.3.31 [INFO] [stderr] Compiling signal-hook v0.3.18 [INFO] [stderr] Compiling quote v1.0.41 [INFO] [stderr] Compiling convert_case v0.7.1 [INFO] [stderr] Compiling nix v0.28.0 [INFO] [stderr] Compiling crossbeam-utils v0.8.21 [INFO] [stderr] Checking predicates-core v1.0.9 [INFO] [stderr] Checking anstyle-query v1.1.4 [INFO] [stderr] Compiling litrs v1.0.0 [INFO] [stderr] Checking vte v0.15.0 [INFO] [stderr] Checking float-cmp v0.10.0 [INFO] [stderr] Checking anstream v0.6.21 [INFO] [stderr] Checking futures-channel v0.3.31 [INFO] [stderr] Checking difflib v0.4.0 [INFO] [stderr] Checking shell-words v1.1.0 [INFO] [stderr] Checking downcast-rs v1.2.1 [INFO] [stderr] Checking termtree v0.5.1 [INFO] [stderr] Compiling syn v2.0.108 [INFO] [stderr] Checking futures-util v0.3.31 [INFO] [stderr] Compiling assert_cmd v2.1.1 [INFO] [stderr] Checking once_cell v1.21.3 [INFO] [stderr] Checking jiff v0.2.15 [INFO] [stderr] Checking normalize-line-endings v0.3.0 [INFO] [stderr] Checking unty v0.0.4 [INFO] [stderr] Checking sdd v3.0.10 [INFO] [stderr] Checking vt100 v0.16.2 [INFO] [stderr] Checking predicates-tree v1.0.12 [INFO] [stderr] Checking crossbeam-channel v0.5.15 [INFO] [stderr] Checking scc v2.4.0 [INFO] [stderr] Compiling document-features v0.2.12 [INFO] [stderr] Checking signal-hook-registry v1.4.6 [INFO] [stderr] Checking parking_lot_core v0.9.12 [INFO] [stderr] Checking mio v1.1.0 [INFO] [stderr] Checking serial2 v0.2.33 [INFO] [stderr] Checking nix v0.26.4 [INFO] [stderr] Checking wait-timeout v0.2.1 [INFO] [stderr] Checking getrandom v0.3.4 [INFO] [stderr] Checking regex-automata v0.4.13 [INFO] [stderr] Checking signal-hook-mio v0.2.5 [INFO] [stderr] Checking tempfile v3.23.0 [INFO] [stderr] Checking parking_lot v0.12.5 [INFO] [stderr] Checking futures-executor v0.3.31 [INFO] [stderr] Checking futures v0.3.31 [INFO] [stderr] Compiling thiserror-impl v1.0.69 [INFO] [stderr] Compiling derive_more-impl v2.0.1 [INFO] [stderr] Compiling serde_derive v1.0.228 [INFO] [stderr] Compiling serial_test_derive v3.2.0 [INFO] [stderr] Checking regex v1.12.2 [INFO] [stderr] Checking bstr v1.12.1 [INFO] [stderr] Checking serial_test v3.2.0 [INFO] [stderr] Checking thiserror v1.0.69 [INFO] [stderr] Checking derive_more v2.0.1 [INFO] [stderr] Checking filedescriptor v0.8.3 [INFO] [stderr] Checking crossterm v0.29.0 [INFO] [stderr] Checking portable-pty v0.9.0 [INFO] [stderr] Checking env_filter v0.1.4 [INFO] [stderr] Checking predicates v3.1.3 [INFO] [stderr] Checking env_logger v0.11.8 [INFO] [stderr] Checking ptyprocess v0.5.0 [INFO] [stderr] Checking expectrl v0.8.0 [INFO] [stderr] Checking serde v1.0.228 [INFO] [stderr] Checking bincode v2.0.1 [INFO] [stderr] Checking pty-demo v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] [INFO] [stderr] thread 'rustc' (802) 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: tests/slow_client.rs:13:1: 13:8 (#19), segments: [PathSegment { ident: #19, id: NodeId(4294967040), args: None }], tokens: None }, args: Unparsed(Empty), tokens: None }, tokens: None }), id: AttrId(11), style: Outer, span: tests/slow_client.rs:13:1: 13:8 (#19) } [INFO] [stderr] stack backtrace: [INFO] [stderr] [INFO] [stderr] thread 'rustc' (807) 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: tests/attach.rs:14:1: 14:8 (#19), segments: [PathSegment { ident: #19, id: NodeId(4294967040), args: None }], tokens: None }, args: Unparsed(Empty), tokens: None }, tokens: None }), id: AttrId(13), style: Outer, span: tests/attach.rs:14:1: 14:8 (#19) } [INFO] [stderr] stack backtrace: [INFO] [stderr] 0: 0x7452e7a2bfa3 - <::print::DisplayBacktrace as core[75ca2badb63c4514]::fmt::Display>::fmt [INFO] [stderr] 1: 0x7452e800fb48 - core[75ca2badb63c4514]::fmt::write [INFO] [stderr] 2: 0x7452e7a42226 - ::write_fmt [INFO] [stderr] 3: 0x7452e7a01b98 - std[7d609349af90bec6]::panicking::default_hook::{closure#0} [INFO] [stderr] 4: 0x7452e7a1f833 - std[7d609349af90bec6]::panicking::default_hook [INFO] [stderr] 5: 0x7452e6a0236a - std[7d609349af90bec6]::panicking::update_hook::>::{closure#0} [INFO] [stderr] 6: 0x7452e7a1fb12 - std[7d609349af90bec6]::panicking::panic_with_hook [INFO] [stderr] 7: 0x7452e7a01c58 - std[7d609349af90bec6]::panicking::panic_handler::{closure#0} [INFO] [stderr] 8: 0x7452e79f89a9 - std[7d609349af90bec6]::sys::backtrace::__rust_end_short_backtrace:: [INFO] [stderr] 9: 0x7452e7a0372d - __rustc[69841a6cbc58d81d]::rust_begin_unwind [INFO] [stderr] 10: 0x7452e4638f9c - core[75ca2badb63c4514]::panicking::panic_fmt [INFO] [stderr] 11: 0x7452e8de0110 - ::token_trees [INFO] [stderr] 12: 0x7452e961c314 - ::fully_expand_fragment [INFO] [stderr] 13: 0x7452e95e65d2 - ::expand_crate [INFO] [stderr] 14: 0x7452e86f0af3 - rustc_interface[903e43df8d6bd657]::passes::configure_and_expand [INFO] [stderr] 15: 0x7452e9207658 - rustc_interface[903e43df8d6bd657]::passes::resolver_for_lowering_raw [INFO] [stderr] 16: 0x7452e92073cd - rustc_query_impl[8c5349e00d64015e]::plumbing::__rust_begin_short_backtrace::> [INFO] [stderr] 17: 0x7452e92073a7 - >::call_once [INFO] [stderr] 18: 0x7452e91ecb5f - rustc_query_system[d45be4fb383a0235]::query::plumbing::try_execute_query::>, false, false, false>, rustc_query_impl[8c5349e00d64015e]::plumbing::QueryCtxt, false> [INFO] [stderr] 19: 0x7452e91ec6bc - rustc_query_impl[8c5349e00d64015e]::query_impl::resolver_for_lowering_raw::get_query_non_incr::__rust_end_short_backtrace [INFO] [stderr] 20: 0x7452e937127b - , 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: 0x7452e925ac98 - rustc_interface[903e43df8d6bd657]::interface::run_compiler::<(), rustc_driver_impl[3f9d6dd912ac34bd]::run_compiler::{closure#0}>::{closure#1} [INFO] [stderr] 22: 0x7452e90eac4e - std[7d609349af90bec6]::sys::backtrace::__rust_begin_short_backtrace::::{closure#1}, ()>::{closure#0}, ()>::{closure#0}::{closure#0}, ()> [INFO] [stderr] 23: 0x7452e90eaa20 - ::{closure#1}, ()>::{closure#0}, ()>::{closure#0}::{closure#0}, ()>::{closure#1} as core[75ca2badb63c4514]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0} [INFO] [stderr] 24: 0x7452e90ed138 - ::new::thread_start [INFO] [stderr] 25: 0x7452e2c8aaa4 - [INFO] [stderr] 26: 0x7452e2d17a64 - 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-2026-01-10T00_45_34-791.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 `pty-demo` (test "slow_client") [INFO] [stderr] [INFO] [stderr] Caused by: [INFO] [stderr] process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/66388cc165a6c4ac98c074dc9f0281ff23528c55/bin/rustc --crate-name slow_client --edition=2021 tests/slow_client.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=1c2c3fd00c218c6c -C extra-filename=-107283d6e2755764 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern anyhow=/opt/rustwide/target/debug/deps/libanyhow-5cf73cd768c5f646.rmeta --extern assert_cmd=/opt/rustwide/target/debug/deps/libassert_cmd-a5e5788f142a5856.rmeta --extern bincode=/opt/rustwide/target/debug/deps/libbincode-27dfff70d653a881.rmeta --extern crossbeam_channel=/opt/rustwide/target/debug/deps/libcrossbeam_channel-c314df56584eb60b.rmeta --extern crossterm=/opt/rustwide/target/debug/deps/libcrossterm-9cee3724eb163978.rmeta --extern env_logger=/opt/rustwide/target/debug/deps/libenv_logger-e48761e42a924461.rmeta --extern expectrl=/opt/rustwide/target/debug/deps/libexpectrl-d9d2157f019ac75c.rmeta --extern log=/opt/rustwide/target/debug/deps/liblog-d1445fb67721d80a.rmeta --extern portable_pty=/opt/rustwide/target/debug/deps/libportable_pty-10c10834a4a562c3.rmeta --extern predicates=/opt/rustwide/target/debug/deps/libpredicates-866f52dfe49ab47f.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-e5e8475af182985d.rmeta --extern serial_test=/opt/rustwide/target/debug/deps/libserial_test-440bff9b8d59c406.rmeta --extern tempfile=/opt/rustwide/target/debug/deps/libtempfile-977350f20f4a14bc.rmeta --extern vt100=/opt/rustwide/target/debug/deps/libvt100-acdd1086a4feb67d.rmeta --cap-lints=forbid` (exit status: 101) [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] 0: 0x7e7a6202bfa3 - <::print::DisplayBacktrace as core[75ca2badb63c4514]::fmt::Display>::fmt [INFO] [stderr] 1: 0x7e7a6260fb48 - core[75ca2badb63c4514]::fmt::write [INFO] [stderr] 2: 0x7e7a62042226 - ::write_fmt [INFO] [stderr] 3: 0x7e7a62001b98 - std[7d609349af90bec6]::panicking::default_hook::{closure#0} [INFO] [stderr] 4: 0x7e7a6201f833 - std[7d609349af90bec6]::panicking::default_hook [INFO] [stderr] 5: 0x7e7a6100236a - std[7d609349af90bec6]::panicking::update_hook::>::{closure#0} [INFO] [stderr] 6: 0x7e7a6201fb12 - std[7d609349af90bec6]::panicking::panic_with_hook [INFO] [stderr] 7: 0x7e7a62001c58 - std[7d609349af90bec6]::panicking::panic_handler::{closure#0} [INFO] [stderr] 8: 0x7e7a61ff89a9 - std[7d609349af90bec6]::sys::backtrace::__rust_end_short_backtrace:: [INFO] [stderr] 9: 0x7e7a6200372d - __rustc[69841a6cbc58d81d]::rust_begin_unwind [INFO] [stderr] 10: 0x7e7a5ec38f9c - core[75ca2badb63c4514]::panicking::panic_fmt [INFO] [stderr] 11: 0x7e7a633e0110 - ::token_trees [INFO] [stderr] 12: 0x7e7a63c1c314 - ::fully_expand_fragment [INFO] [stderr] 13: 0x7e7a63be65d2 - ::expand_crate [INFO] [stderr] 14: 0x7e7a62cf0af3 - rustc_interface[903e43df8d6bd657]::passes::configure_and_expand [INFO] [stderr] 15: 0x7e7a63807658 - rustc_interface[903e43df8d6bd657]::passes::resolver_for_lowering_raw [INFO] [stderr] 16: 0x7e7a638073cd - rustc_query_impl[8c5349e00d64015e]::plumbing::__rust_begin_short_backtrace::> [INFO] [stderr] 17: 0x7e7a638073a7 - >::call_once [INFO] [stderr] 18: 0x7e7a637ecb5f - rustc_query_system[d45be4fb383a0235]::query::plumbing::try_execute_query::>, false, false, false>, rustc_query_impl[8c5349e00d64015e]::plumbing::QueryCtxt, false> [INFO] [stderr] 19: 0x7e7a637ec6bc - rustc_query_impl[8c5349e00d64015e]::query_impl::resolver_for_lowering_raw::get_query_non_incr::__rust_end_short_backtrace [INFO] [stderr] 20: 0x7e7a6397127b - , 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: 0x7e7a6385ac98 - rustc_interface[903e43df8d6bd657]::interface::run_compiler::<(), rustc_driver_impl[3f9d6dd912ac34bd]::run_compiler::{closure#0}>::{closure#1} [INFO] [stderr] 22: 0x7e7a636eac4e - std[7d609349af90bec6]::sys::backtrace::__rust_begin_short_backtrace::::{closure#1}, ()>::{closure#0}, ()>::{closure#0}::{closure#0}, ()> [INFO] [stderr] 23: 0x7e7a636eaa20 - ::{closure#1}, ()>::{closure#0}, ()>::{closure#0}::{closure#0}, ()>::{closure#1} as core[75ca2badb63c4514]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0} [INFO] [stderr] 24: 0x7e7a636ed138 - ::new::thread_start [INFO] [stderr] 25: 0x7e7a5d28aaa4 - [INFO] [stderr] 26: 0x7e7a5d317a64 - 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-2026-01-10T00_45_34-792.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] [INFO] [stderr] thread 'rustc' (812) 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: tests/shell_exit.rs:13:1: 13:8 (#19), segments: [PathSegment { ident: #19, id: NodeId(4294967040), args: None }], tokens: None }, args: Unparsed(Empty), tokens: None }, tokens: None }), id: AttrId(11), style: Outer, span: tests/shell_exit.rs:13:1: 13:8 (#19) } [INFO] [stderr] stack backtrace: [INFO] [stderr] error: could not compile `pty-demo` (test "attach") [INFO] [stderr] [INFO] [stderr] Caused by: [INFO] [stderr] process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/66388cc165a6c4ac98c074dc9f0281ff23528c55/bin/rustc --crate-name attach --edition=2021 tests/attach.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=fb10b3bc403dbfcd -C extra-filename=-53f21a18d106d638 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern anyhow=/opt/rustwide/target/debug/deps/libanyhow-5cf73cd768c5f646.rmeta --extern assert_cmd=/opt/rustwide/target/debug/deps/libassert_cmd-a5e5788f142a5856.rmeta --extern bincode=/opt/rustwide/target/debug/deps/libbincode-27dfff70d653a881.rmeta --extern crossbeam_channel=/opt/rustwide/target/debug/deps/libcrossbeam_channel-c314df56584eb60b.rmeta --extern crossterm=/opt/rustwide/target/debug/deps/libcrossterm-9cee3724eb163978.rmeta --extern env_logger=/opt/rustwide/target/debug/deps/libenv_logger-e48761e42a924461.rmeta --extern expectrl=/opt/rustwide/target/debug/deps/libexpectrl-d9d2157f019ac75c.rmeta --extern log=/opt/rustwide/target/debug/deps/liblog-d1445fb67721d80a.rmeta --extern portable_pty=/opt/rustwide/target/debug/deps/libportable_pty-10c10834a4a562c3.rmeta --extern predicates=/opt/rustwide/target/debug/deps/libpredicates-866f52dfe49ab47f.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-e5e8475af182985d.rmeta --extern serial_test=/opt/rustwide/target/debug/deps/libserial_test-440bff9b8d59c406.rmeta --extern tempfile=/opt/rustwide/target/debug/deps/libtempfile-977350f20f4a14bc.rmeta --extern vt100=/opt/rustwide/target/debug/deps/libvt100-acdd1086a4feb67d.rmeta --cap-lints=forbid` (exit status: 101) [INFO] [stderr] 0: 0x7bafb482bfa3 - <::print::DisplayBacktrace as core[75ca2badb63c4514]::fmt::Display>::fmt [INFO] [stderr] 1: 0x7bafb4e0fb48 - core[75ca2badb63c4514]::fmt::write [INFO] [stderr] 2: 0x7bafb4842226 - ::write_fmt [INFO] [stderr] 3: 0x7bafb4801b98 - std[7d609349af90bec6]::panicking::default_hook::{closure#0} [INFO] [stderr] 4: 0x7bafb481f833 - std[7d609349af90bec6]::panicking::default_hook [INFO] [stderr] 5: 0x7bafb380236a - std[7d609349af90bec6]::panicking::update_hook::>::{closure#0} [INFO] [stderr] 6: 0x7bafb481fb12 - std[7d609349af90bec6]::panicking::panic_with_hook [INFO] [stderr] 7: 0x7bafb4801c58 - std[7d609349af90bec6]::panicking::panic_handler::{closure#0} [INFO] [stderr] 8: 0x7bafb47f89a9 - std[7d609349af90bec6]::sys::backtrace::__rust_end_short_backtrace:: [INFO] [stderr] 9: 0x7bafb480372d - __rustc[69841a6cbc58d81d]::rust_begin_unwind [INFO] [stderr] 10: 0x7bafb1438f9c - core[75ca2badb63c4514]::panicking::panic_fmt [INFO] [stderr] 11: 0x7bafb5be0110 - ::token_trees [INFO] [stderr] 12: 0x7bafb641c314 - ::fully_expand_fragment [INFO] [stderr] 13: 0x7bafb63e65d2 - ::expand_crate [INFO] [stderr] 14: 0x7bafb54f0af3 - rustc_interface[903e43df8d6bd657]::passes::configure_and_expand [INFO] [stderr] 15: 0x7bafb6007658 - rustc_interface[903e43df8d6bd657]::passes::resolver_for_lowering_raw [INFO] [stderr] 16: 0x7bafb60073cd - rustc_query_impl[8c5349e00d64015e]::plumbing::__rust_begin_short_backtrace::> [INFO] [stderr] 17: 0x7bafb60073a7 - >::call_once [INFO] [stderr] 18: 0x7bafb5fecb5f - rustc_query_system[d45be4fb383a0235]::query::plumbing::try_execute_query::>, false, false, false>, rustc_query_impl[8c5349e00d64015e]::plumbing::QueryCtxt, false> [INFO] [stderr] 19: 0x7bafb5fec6bc - rustc_query_impl[8c5349e00d64015e]::query_impl::resolver_for_lowering_raw::get_query_non_incr::__rust_end_short_backtrace [INFO] [stderr] 20: 0x7bafb617127b - , 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: 0x7bafb605ac98 - rustc_interface[903e43df8d6bd657]::interface::run_compiler::<(), rustc_driver_impl[3f9d6dd912ac34bd]::run_compiler::{closure#0}>::{closure#1} [INFO] [stderr] 22: 0x7bafb5eeac4e - std[7d609349af90bec6]::sys::backtrace::__rust_begin_short_backtrace::::{closure#1}, ()>::{closure#0}, ()>::{closure#0}::{closure#0}, ()> [INFO] [stderr] 23: 0x7bafb5eeaa20 - ::{closure#1}, ()>::{closure#0}, ()>::{closure#0}::{closure#0}, ()>::{closure#1} as core[75ca2badb63c4514]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0} [INFO] [stderr] 24: 0x7bafb5eed138 - ::new::thread_start [INFO] [stderr] 25: 0x7bafafa8aaa4 - [INFO] [stderr] 26: 0x7bafafb17a64 - 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-2026-01-10T00_45_34-795.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 `pty-demo` (test "shell_exit") [INFO] [stderr] [INFO] [stderr] Caused by: [INFO] [stderr] process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/66388cc165a6c4ac98c074dc9f0281ff23528c55/bin/rustc --crate-name shell_exit --edition=2021 tests/shell_exit.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=b11aa9ad3da46f04 -C extra-filename=-706671fe83e4ffb9 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern anyhow=/opt/rustwide/target/debug/deps/libanyhow-5cf73cd768c5f646.rmeta --extern assert_cmd=/opt/rustwide/target/debug/deps/libassert_cmd-a5e5788f142a5856.rmeta --extern bincode=/opt/rustwide/target/debug/deps/libbincode-27dfff70d653a881.rmeta --extern crossbeam_channel=/opt/rustwide/target/debug/deps/libcrossbeam_channel-c314df56584eb60b.rmeta --extern crossterm=/opt/rustwide/target/debug/deps/libcrossterm-9cee3724eb163978.rmeta --extern env_logger=/opt/rustwide/target/debug/deps/libenv_logger-e48761e42a924461.rmeta --extern expectrl=/opt/rustwide/target/debug/deps/libexpectrl-d9d2157f019ac75c.rmeta --extern log=/opt/rustwide/target/debug/deps/liblog-d1445fb67721d80a.rmeta --extern portable_pty=/opt/rustwide/target/debug/deps/libportable_pty-10c10834a4a562c3.rmeta --extern predicates=/opt/rustwide/target/debug/deps/libpredicates-866f52dfe49ab47f.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-e5e8475af182985d.rmeta --extern serial_test=/opt/rustwide/target/debug/deps/libserial_test-440bff9b8d59c406.rmeta --extern tempfile=/opt/rustwide/target/debug/deps/libtempfile-977350f20f4a14bc.rmeta --extern vt100=/opt/rustwide/target/debug/deps/libvt100-acdd1086a4feb67d.rmeta --cap-lints=forbid` (exit status: 101) [INFO] running `Command { std: "docker" "inspect" "012c9ea7f166c0c9c4cd4a76198d794b245a986bb4b885585707f35fb736eac8", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "012c9ea7f166c0c9c4cd4a76198d794b245a986bb4b885585707f35fb736eac8", kill_on_drop: false }` [INFO] [stdout] 012c9ea7f166c0c9c4cd4a76198d794b245a986bb4b885585707f35fb736eac8