[INFO] fetching crate tokio-stream-multiplexor 0.5.6... [INFO] checking tokio-stream-multiplexor-0.5.6 against try#66388cc165a6c4ac98c074dc9f0281ff23528c55 for pr-150727 [INFO] extracting crate tokio-stream-multiplexor 0.5.6 into /workspace/builds/worker-7-tc2/source [INFO] started tweaking crates.io crate tokio-stream-multiplexor 0.5.6 [INFO] finished tweaking crates.io crate tokio-stream-multiplexor 0.5.6 [INFO] tweaked toml for crates.io crate tokio-stream-multiplexor 0.5.6 written to /workspace/builds/worker-7-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate tokio-stream-multiplexor 0.5.6 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 tokio-stream-multiplexor 0.5.6 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] 011897c0ad689c6b17e8d70617ef2aed8d2baaca30606020596efeb07fd77847 [INFO] running `Command { std: "docker" "start" "-a" "011897c0ad689c6b17e8d70617ef2aed8d2baaca30606020596efeb07fd77847", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "011897c0ad689c6b17e8d70617ef2aed8d2baaca30606020596efeb07fd77847", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "011897c0ad689c6b17e8d70617ef2aed8d2baaca30606020596efeb07fd77847", kill_on_drop: false }` [INFO] [stdout] 011897c0ad689c6b17e8d70617ef2aed8d2baaca30606020596efeb07fd77847 [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] d5a49419b5842a9d5ef07c24890481d244230f266a52bc0d005388a4417e45e6 [INFO] running `Command { std: "docker" "start" "-a" "d5a49419b5842a9d5ef07c24890481d244230f266a52bc0d005388a4417e45e6", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.32 [INFO] [stderr] Compiling syn v1.0.81 [INFO] [stderr] Compiling serde_derive v1.0.130 [INFO] [stderr] Compiling libc v0.2.107 [INFO] [stderr] Compiling serde v1.0.130 [INFO] [stderr] Checking pin-project-lite v0.2.7 [INFO] [stderr] Compiling crossbeam-utils v0.8.5 [INFO] [stderr] Compiling memoffset v0.6.4 [INFO] [stderr] Compiling futures-channel v0.3.17 [INFO] [stderr] Compiling futures-util v0.3.17 [INFO] [stderr] Compiling crossbeam-epoch v0.9.5 [INFO] [stderr] Compiling tokio v1.13.0 [INFO] [stderr] Compiling rayon-core v1.9.1 [INFO] [stderr] Compiling unicase v2.6.0 [INFO] [stderr] Compiling cast v0.2.7 [INFO] [stderr] Compiling num-traits v0.2.14 [INFO] [stderr] Checking tracing-core v0.1.21 [INFO] [stderr] Checking unicode-xid v0.2.2 [INFO] [stderr] Compiling serde_json v1.0.71 [INFO] [stderr] Checking either v1.6.1 [INFO] [stderr] Checking regex v1.5.4 [INFO] [stderr] Compiling rayon v1.5.1 [INFO] [stderr] Checking cache-padded v1.1.1 [INFO] [stderr] Checking unicode-width v0.1.9 [INFO] [stderr] Checking plotters-backend v0.3.2 [INFO] [stderr] Compiling pulldown-cmark v0.8.0 [INFO] [stderr] Checking concurrent-queue v1.2.2 [INFO] [stderr] Checking textwrap v0.11.0 [INFO] [stderr] Checking csv-core v0.1.10 [INFO] [stderr] Checking event-listener v2.5.1 [INFO] [stderr] Checking once_cell v1.8.0 [INFO] [stderr] Checking itertools v0.10.1 [INFO] [stderr] Checking half v1.8.2 [INFO] [stderr] Checking clap v2.33.3 [INFO] [stderr] Checking quote v1.0.10 [INFO] [stderr] Checking tracing-log v0.1.2 [INFO] [stderr] Checking smallvec v1.7.0 [INFO] [stderr] Checking crossbeam-channel v0.5.1 [INFO] [stderr] Checking thread_local v1.1.3 [INFO] [stderr] Checking async-channel v1.6.1 [INFO] [stderr] Checking plotters-svg v0.3.1 [INFO] [stderr] Checking crossbeam-deque v0.8.1 [INFO] [stderr] Checking num_cpus v1.13.0 [INFO] [stderr] Checking mio v0.7.14 [INFO] [stderr] Checking getrandom v0.2.3 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking rand_core v0.6.3 [INFO] [stderr] Checking rand_chacha v0.3.1 [INFO] [stderr] Checking plotters v0.3.1 [INFO] [stderr] Checking rand v0.8.4 [INFO] [stderr] Checking criterion-plot v0.4.4 [INFO] [stderr] Compiling futures-macro v0.3.17 [INFO] [stderr] Compiling tokio-macros v1.5.1 [INFO] [stderr] Compiling tracing-attributes v0.1.18 [INFO] [stderr] Compiling ctor v0.1.21 [INFO] [stderr] Checking tracing v0.1.29 [INFO] [stderr] Checking tracing-subscriber v0.3.2 [INFO] [stderr] Checking futures-executor v0.3.17 [INFO] [stderr] Checking futures v0.3.17 [INFO] [stderr] Checking bytes v1.1.0 [INFO] [stderr] Checking bstr v0.2.17 [INFO] [stderr] Checking serde_cbor v0.11.2 [INFO] [stderr] Checking bincode v1.3.3 [INFO] [stderr] Checking toml v0.5.8 [INFO] [stderr] Checking csv v1.1.6 [INFO] [stderr] Checking version-sync v0.9.3 [INFO] [stderr] Checking tinytemplate v1.2.1 [INFO] [stderr] Checking tokio-util v0.6.9 [INFO] [stderr] Checking criterion v0.3.5 [INFO] [stderr] Checking tokio-stream-multiplexor v0.5.6 (/opt/rustwide/workdir) [INFO] [stderr] [INFO] [stderr] thread 'rustc' (1263) 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/test.rs:45:1: 45:15 (#2017), segments: [PathSegment { ident: #2017, id: NodeId(4294967040), args: None }], tokens: None }, args: Unparsed(Empty), tokens: None }, tokens: None }), id: AttrId(307), style: Outer, span: src/test.rs:45:1: 45:15 (#2017) } [INFO] [stderr] stack backtrace: [INFO] [stderr] 0: 0x7423e8e2bfa3 - <::print::DisplayBacktrace as core[75ca2badb63c4514]::fmt::Display>::fmt [INFO] [stderr] 1: 0x7423e940fb48 - core[75ca2badb63c4514]::fmt::write [INFO] [stderr] 2: 0x7423e8e42226 - ::write_fmt [INFO] [stderr] 3: 0x7423e8e01b98 - std[7d609349af90bec6]::panicking::default_hook::{closure#0} [INFO] [stderr] 4: 0x7423e8e1f833 - std[7d609349af90bec6]::panicking::default_hook [INFO] [stderr] 5: 0x7423e7e0236a - std[7d609349af90bec6]::panicking::update_hook::>::{closure#0} [INFO] [stderr] 6: 0x7423e8e1fb12 - std[7d609349af90bec6]::panicking::panic_with_hook [INFO] [stderr] 7: 0x7423e8e01c58 - std[7d609349af90bec6]::panicking::panic_handler::{closure#0} [INFO] [stderr] 8: 0x7423e8df89a9 - std[7d609349af90bec6]::sys::backtrace::__rust_end_short_backtrace:: [INFO] [stderr] 9: 0x7423e8e0372d - __rustc[69841a6cbc58d81d]::rust_begin_unwind [INFO] [stderr] 10: 0x7423e5a38f9c - core[75ca2badb63c4514]::panicking::panic_fmt [INFO] [stderr] 11: 0x7423ea1e0110 - ::token_trees [INFO] [stderr] 12: 0x7423eaa1c314 - ::fully_expand_fragment [INFO] [stderr] 13: 0x7423ea9e65d2 - ::expand_crate [INFO] [stderr] 14: 0x7423e9af0af3 - rustc_interface[903e43df8d6bd657]::passes::configure_and_expand [INFO] [stderr] 15: 0x7423ea607658 - rustc_interface[903e43df8d6bd657]::passes::resolver_for_lowering_raw [INFO] [stderr] 16: 0x7423ea6073cd - rustc_query_impl[8c5349e00d64015e]::plumbing::__rust_begin_short_backtrace::> [INFO] [stderr] 17: 0x7423ea6073a7 - >::call_once [INFO] [stderr] 18: 0x7423ea5ecb5f - rustc_query_system[d45be4fb383a0235]::query::plumbing::try_execute_query::>, false, false, false>, rustc_query_impl[8c5349e00d64015e]::plumbing::QueryCtxt, false> [INFO] [stderr] 19: 0x7423ea5ec6bc - rustc_query_impl[8c5349e00d64015e]::query_impl::resolver_for_lowering_raw::get_query_non_incr::__rust_end_short_backtrace [INFO] [stderr] 20: 0x7423ea77127b - , 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: 0x7423ea65ac98 - rustc_interface[903e43df8d6bd657]::interface::run_compiler::<(), rustc_driver_impl[3f9d6dd912ac34bd]::run_compiler::{closure#0}>::{closure#1} [INFO] [stderr] 22: 0x7423ea4eac4e - std[7d609349af90bec6]::sys::backtrace::__rust_begin_short_backtrace::::{closure#1}, ()>::{closure#0}, ()>::{closure#0}::{closure#0}, ()> [INFO] [stderr] 23: 0x7423ea4eaa20 - ::{closure#1}, ()>::{closure#0}, ()>::{closure#0}::{closure#0}, ()>::{closure#1} as core[75ca2badb63c4514]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0} [INFO] [stderr] 24: 0x7423ea4ed138 - ::new::thread_start [INFO] [stderr] 25: 0x7423e408aaa4 - [INFO] [stderr] 26: 0x7423e4117a64 - 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-2026-01-08T23_33_21-1256.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 `tokio-stream-multiplexor` (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 tokio_stream_multiplexor --edition=2021 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=c83722290faa7ada -C extra-filename=-d480368e33e02ff1 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern async_channel=/opt/rustwide/target/debug/deps/libasync_channel-a0cdcdd4d9ba461d.rmeta --extern bincode=/opt/rustwide/target/debug/deps/libbincode-03a23df1f1d83881.rmeta --extern bytes=/opt/rustwide/target/debug/deps/libbytes-4bb02369f7f81a17.rmeta --extern criterion=/opt/rustwide/target/debug/deps/libcriterion-6167fdca0c523bf4.rmeta --extern ctor=/opt/rustwide/target/debug/deps/libctor-3eb2baa7029b777b.so --extern futures=/opt/rustwide/target/debug/deps/libfutures-0e7fefe574dab611.rmeta --extern futures_util=/opt/rustwide/target/debug/deps/libfutures_util-79bd38c78c692e9a.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-8be369390501b2db.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-c51336b44459ebd8.rmeta --extern tokio=/opt/rustwide/target/debug/deps/libtokio-fc7aa1e2f527a26b.rmeta --extern tokio_util=/opt/rustwide/target/debug/deps/libtokio_util-feedbe047ece00db.rmeta --extern tracing=/opt/rustwide/target/debug/deps/libtracing-96d01a306e1effe4.rmeta --extern tracing_subscriber=/opt/rustwide/target/debug/deps/libtracing_subscriber-d67432f61e541308.rmeta --extern version_sync=/opt/rustwide/target/debug/deps/libversion_sync-ef13b2943a149c15.rmeta --cap-lints=forbid` (exit status: 101) [INFO] running `Command { std: "docker" "inspect" "d5a49419b5842a9d5ef07c24890481d244230f266a52bc0d005388a4417e45e6", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d5a49419b5842a9d5ef07c24890481d244230f266a52bc0d005388a4417e45e6", kill_on_drop: false }` [INFO] [stdout] d5a49419b5842a9d5ef07c24890481d244230f266a52bc0d005388a4417e45e6