[INFO] fetching crate mry 0.14.0... [INFO] checking mry-0.14.0 against try#66388cc165a6c4ac98c074dc9f0281ff23528c55 for pr-150727 [INFO] extracting crate mry 0.14.0 into /workspace/builds/worker-4-tc2/source [INFO] started tweaking crates.io crate mry 0.14.0 [INFO] removed 0 missing tests [INFO] finished tweaking crates.io crate mry 0.14.0 [INFO] tweaked toml for crates.io crate mry 0.14.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate mry 0.14.0 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 mry 0.14.0 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] d3d7a753a0efa8469c6d581348a98ddbb483cb5142d252b6c6db99583707cc3f [INFO] running `Command { std: "docker" "start" "-a" "d3d7a753a0efa8469c6d581348a98ddbb483cb5142d252b6c6db99583707cc3f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "d3d7a753a0efa8469c6d581348a98ddbb483cb5142d252b6c6db99583707cc3f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d3d7a753a0efa8469c6d581348a98ddbb483cb5142d252b6c6db99583707cc3f", kill_on_drop: false }` [INFO] [stdout] d3d7a753a0efa8469c6d581348a98ddbb483cb5142d252b6c6db99583707cc3f [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] 066384f8e12cab47ae067c0349aa0a0a03f622c20844183073c6f0259ed575f2 [INFO] running `Command { std: "docker" "start" "-a" "066384f8e12cab47ae067c0349aa0a0a03f622c20844183073c6f0259ed575f2", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.84 [INFO] [stderr] Checking parking v2.2.0 [INFO] [stderr] Compiling libc v0.2.155 [INFO] [stderr] Compiling rustix v0.38.34 [INFO] [stderr] Checking value-bag v1.9.0 [INFO] [stderr] Checking linux-raw-sys v0.4.14 [INFO] [stderr] Checking tracing v0.1.40 [INFO] [stderr] Compiling rustix v0.37.27 [INFO] [stderr] Checking concurrent-queue v2.5.0 [INFO] [stderr] Checking piper v0.2.2 [INFO] [stderr] Checking lock_api v0.4.12 [INFO] [stderr] Checking send_wrapper v0.6.0 [INFO] [stderr] Checking futures-lite v2.3.0 [INFO] [stderr] Checking futures-lite v1.13.0 [INFO] [stderr] Checking event-listener v5.3.0 [INFO] [stderr] Checking event-listener v4.0.3 [INFO] [stderr] Checking async-channel v1.9.0 [INFO] [stderr] Checking event-listener-strategy v0.5.2 [INFO] [stderr] Checking event-listener-strategy v0.4.0 [INFO] [stderr] Checking log v0.4.21 [INFO] [stderr] Checking async-lock v3.3.0 [INFO] [stderr] Checking async-channel v2.3.1 [INFO] [stderr] Checking kv-log-macro v1.0.7 [INFO] [stderr] Checking async-executor v1.12.0 [INFO] [stderr] Checking blocking v1.6.1 [INFO] [stderr] Checking io-lifetimes v1.0.11 [INFO] [stderr] Checking polling v2.8.0 [INFO] [stderr] Checking parking_lot_core v0.9.10 [INFO] [stderr] Checking socket2 v0.4.10 [INFO] [stderr] Compiling quote v1.0.36 [INFO] [stderr] Checking parking_lot v0.12.3 [INFO] [stderr] Compiling syn v2.0.66 [INFO] [stderr] Compiling syn v1.0.109 [INFO] [stderr] Checking async-io v1.13.0 [INFO] [stderr] Compiling async-attributes v1.1.2 [INFO] [stderr] Checking polling v3.7.0 [INFO] [stderr] Checking async-io v2.3.2 [INFO] [stderr] Checking async-global-executor v2.4.1 [INFO] [stderr] Checking async-std v1.12.0 [INFO] [stderr] Compiling darling_core v0.20.9 [INFO] [stderr] Compiling async-recursion v1.1.1 [INFO] [stderr] Compiling async-trait v0.1.80 [INFO] [stderr] Compiling trait-variant v0.1.2 [INFO] [stderr] Compiling darling_macro v0.20.9 [INFO] [stderr] Compiling darling v0.20.9 [INFO] [stderr] Compiling mry_macros v0.14.0 [INFO] [stderr] Checking mry v0.14.0 (/opt/rustwide/workdir) [INFO] [stderr] [INFO] [stderr] thread 'rustc' (647) 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/integration/bounds.rs:8:1: 8:8 (#103), segments: [PathSegment { ident: #103, id: NodeId(4294967040), args: None }], tokens: None }, args: Unparsed(Empty), tokens: None }, tokens: None }), id: AttrId(325), style: Outer, span: tests/integration/bounds.rs:8:1: 8:8 (#103) } [INFO] [stderr] stack backtrace: [INFO] [stderr] 0: 0x7a726a62bfa3 - <::print::DisplayBacktrace as core[75ca2badb63c4514]::fmt::Display>::fmt [INFO] [stderr] 1: 0x7a726ac0fb48 - core[75ca2badb63c4514]::fmt::write [INFO] [stderr] 2: 0x7a726a642226 - ::write_fmt [INFO] [stderr] 3: 0x7a726a601b98 - std[7d609349af90bec6]::panicking::default_hook::{closure#0} [INFO] [stderr] 4: 0x7a726a61f833 - std[7d609349af90bec6]::panicking::default_hook [INFO] [stderr] 5: 0x7a726960236a - std[7d609349af90bec6]::panicking::update_hook::>::{closure#0} [INFO] [stderr] 6: 0x7a726a61fb12 - std[7d609349af90bec6]::panicking::panic_with_hook [INFO] [stderr] 7: 0x7a726a601c58 - std[7d609349af90bec6]::panicking::panic_handler::{closure#0} [INFO] [stderr] 8: 0x7a726a5f89a9 - std[7d609349af90bec6]::sys::backtrace::__rust_end_short_backtrace:: [INFO] [stderr] 9: 0x7a726a60372d - __rustc[69841a6cbc58d81d]::rust_begin_unwind [INFO] [stderr] 10: 0x7a7267238f9c - core[75ca2badb63c4514]::panicking::panic_fmt [INFO] [stderr] 11: 0x7a726b9e0110 - ::token_trees [INFO] [stderr] 12: 0x7a726c21c314 - ::fully_expand_fragment [INFO] [stderr] 13: 0x7a726c1e65d2 - ::expand_crate [INFO] [stderr] 14: 0x7a726b2f0af3 - rustc_interface[903e43df8d6bd657]::passes::configure_and_expand [INFO] [stderr] 15: 0x7a726be07658 - rustc_interface[903e43df8d6bd657]::passes::resolver_for_lowering_raw [INFO] [stderr] 16: 0x7a726be073cd - rustc_query_impl[8c5349e00d64015e]::plumbing::__rust_begin_short_backtrace::> [INFO] [stderr] 17: 0x7a726be073a7 - >::call_once [INFO] [stderr] 18: 0x7a726bdecb5f - rustc_query_system[d45be4fb383a0235]::query::plumbing::try_execute_query::>, false, false, false>, rustc_query_impl[8c5349e00d64015e]::plumbing::QueryCtxt, false> [INFO] [stderr] 19: 0x7a726bdec6bc - rustc_query_impl[8c5349e00d64015e]::query_impl::resolver_for_lowering_raw::get_query_non_incr::__rust_end_short_backtrace [INFO] [stderr] 20: 0x7a726bf7127b - , 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: 0x7a726be5ac98 - rustc_interface[903e43df8d6bd657]::interface::run_compiler::<(), rustc_driver_impl[3f9d6dd912ac34bd]::run_compiler::{closure#0}>::{closure#1} [INFO] [stderr] 22: 0x7a726bceac4e - std[7d609349af90bec6]::sys::backtrace::__rust_begin_short_backtrace::::{closure#1}, ()>::{closure#0}, ()>::{closure#0}::{closure#0}, ()> [INFO] [stderr] 23: 0x7a726bceaa20 - ::{closure#1}, ()>::{closure#0}, ()>::{closure#0}::{closure#0}, ()>::{closure#1} as core[75ca2badb63c4514]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0} [INFO] [stderr] 24: 0x7a726bced138 - ::new::thread_start [INFO] [stderr] 25: 0x7a726588aaa4 - [INFO] [stderr] 26: 0x7a7265917a64 - 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-2026-01-08T20_42_36-645.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 `mry` (test "integration") [INFO] [stderr] [INFO] [stderr] Caused by: [INFO] [stderr] process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/66388cc165a6c4ac98c074dc9f0281ff23528c55/bin/rustc --crate-name integration --edition=2021 tests/integration/main.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --emit=dep-info,metadata -C embed-bitcode=no -C debuginfo=2 --test --cfg 'feature="default"' --cfg 'feature="send_wrapper"' --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values("default", "send_wrapper", "serde"))' -C metadata=0181ba8509b13adb -C extra-filename=-a64e0d938ae9420c --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern async_recursion=/opt/rustwide/target/debug/deps/libasync_recursion-97c53d4a1903fa75.so --extern async_std=/opt/rustwide/target/debug/deps/libasync_std-e38604865ce62b8b.rmeta --extern async_trait=/opt/rustwide/target/debug/deps/libasync_trait-294e381ec8ea4af3.so --extern mry=/opt/rustwide/target/debug/deps/libmry-e458548fbe6459da.rmeta --extern mry_macros=/opt/rustwide/target/debug/deps/libmry_macros-24c38d9e06279c67.so --extern parking_lot=/opt/rustwide/target/debug/deps/libparking_lot-80472526c13ab5f2.rmeta --extern send_wrapper=/opt/rustwide/target/debug/deps/libsend_wrapper-cd035f4ecb92f689.rmeta --extern trait_variant=/opt/rustwide/target/debug/deps/libtrait_variant-98e06e6cea44a1bc.so --cap-lints=forbid` (exit status: 101) [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] running `Command { std: "docker" "inspect" "066384f8e12cab47ae067c0349aa0a0a03f622c20844183073c6f0259ed575f2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "066384f8e12cab47ae067c0349aa0a0a03f622c20844183073c6f0259ed575f2", kill_on_drop: false }` [INFO] [stdout] 066384f8e12cab47ae067c0349aa0a0a03f622c20844183073c6f0259ed575f2