[INFO] fetching crate modbus-relay 2025.11.0... [INFO] checking modbus-relay-2025.11.0 against try#66388cc165a6c4ac98c074dc9f0281ff23528c55 for pr-150727 [INFO] extracting crate modbus-relay 2025.11.0 into /workspace/builds/worker-7-tc2/source [INFO] started tweaking crates.io crate modbus-relay 2025.11.0 [INFO] finished tweaking crates.io crate modbus-relay 2025.11.0 [INFO] tweaked toml for crates.io crate modbus-relay 2025.11.0 written to /workspace/builds/worker-7-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate modbus-relay 2025.11.0 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 modbus-relay 2025.11.0 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-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] 40bd1c43ce5771bc0e5a8073efdc6de1083dfa5db9d2a5b82ab5c32f20f91c46 [INFO] running `Command { std: "docker" "start" "-a" "40bd1c43ce5771bc0e5a8073efdc6de1083dfa5db9d2a5b82ab5c32f20f91c46", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "40bd1c43ce5771bc0e5a8073efdc6de1083dfa5db9d2a5b82ab5c32f20f91c46", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "40bd1c43ce5771bc0e5a8073efdc6de1083dfa5db9d2a5b82ab5c32f20f91c46", kill_on_drop: false }` [INFO] [stdout] 40bd1c43ce5771bc0e5a8073efdc6de1083dfa5db9d2a5b82ab5c32f20f91c46 [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] 8a95cc0756c9e2f324dd53cb2ee0997d178027b86f4980420422acac8e5c2c17 [INFO] running `Command { std: "docker" "start" "-a" "8a95cc0756c9e2f324dd53cb2ee0997d178027b86f4980420422acac8e5c2c17", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.177 [INFO] [stderr] Compiling crunchy v0.2.4 [INFO] [stderr] Compiling proc-macro2 v1.0.103 [INFO] [stderr] Checking scopeguard v1.2.0 [INFO] [stderr] Compiling tiny-keccak v2.0.2 [INFO] [stderr] Checking futures-channel v0.3.31 [INFO] [stderr] Compiling once_cell v1.21.3 [INFO] [stderr] Compiling pest v2.8.3 [INFO] [stderr] Checking bitflags v2.10.0 [INFO] [stderr] Compiling typeid v1.0.3 [INFO] [stderr] Compiling libudev-sys v0.1.4 [INFO] [stderr] Checking regex-syntax v0.8.8 [INFO] [stderr] Compiling erased-serde v0.4.9 [INFO] [stderr] Checking hashbrown v0.14.5 [INFO] [stderr] Checking lock_api v0.4.14 [INFO] [stderr] Checking winnow v0.7.13 [INFO] [stderr] Checking num_threads v0.1.7 [INFO] [stderr] Checking hashlink v0.10.0 [INFO] [stderr] Checking serde_spanned v1.0.3 [INFO] [stderr] Checking toml_datetime v0.7.3 [INFO] [stderr] Checking arraydeque v0.5.1 [INFO] [stderr] Checking clap_builder v4.5.51 [INFO] [stderr] Checking convert_case v0.6.0 [INFO] [stderr] Checking crossbeam-channel v0.5.15 [INFO] [stderr] Checking humantime v2.3.0 [INFO] [stderr] Checking yaml-rust2 v0.10.4 [INFO] [stderr] Checking sdd v3.0.10 [INFO] [stderr] Checking quote v1.0.40 [INFO] [stderr] Checking rustix v1.1.2 [INFO] [stderr] Checking serde-untagged v0.1.9 [INFO] [stderr] Compiling syn v2.0.109 [INFO] [stderr] Checking scc v2.4.0 [INFO] [stderr] Checking regex-automata v0.4.13 [INFO] [stderr] Compiling pest_meta v2.8.3 [INFO] [stderr] Compiling getrandom v0.2.16 [INFO] [stderr] Compiling const-random-macro v0.1.16 [INFO] [stderr] Checking parking_lot_core v0.9.12 [INFO] [stderr] Checking socket2 v0.6.1 [INFO] [stderr] Checking mio v1.1.0 [INFO] [stderr] Checking signal-hook-registry v1.4.6 [INFO] [stderr] Checking time v0.3.44 [INFO] [stderr] Checking nix v0.26.4 [INFO] [stderr] Checking getrandom v0.3.4 [INFO] [stderr] Checking toml_parser v1.0.4 [INFO] [stderr] Checking libudev v0.3.0 [INFO] [stderr] Checking tempfile v3.23.0 [INFO] [stderr] Checking const-random v0.1.18 [INFO] [stderr] Checking dlv-list v0.5.2 [INFO] [stderr] Checking parking_lot v0.12.5 [INFO] [stderr] Checking ordered-multimap v0.7.3 [INFO] [stderr] Checking toml v0.9.8 [INFO] [stderr] Checking rust-ini v0.21.3 [INFO] [stderr] Checking matchers v0.2.0 [INFO] [stderr] Compiling pest_generator v2.8.3 [INFO] [stderr] Compiling serde_derive v1.0.228 [INFO] [stderr] Compiling tracing-attributes v0.1.30 [INFO] [stderr] Compiling futures-macro v0.3.31 [INFO] [stderr] Compiling tokio-macros v2.6.0 [INFO] [stderr] Compiling thiserror-impl v2.0.17 [INFO] [stderr] Compiling thiserror-impl v1.0.69 [INFO] [stderr] Compiling async-trait v0.1.89 [INFO] [stderr] Compiling clap_derive v4.5.49 [INFO] [stderr] Compiling serial_test_derive v3.2.0 [INFO] [stderr] Compiling pest_derive v2.8.3 [INFO] [stderr] Checking tokio v1.48.0 [INFO] [stderr] Checking futures-util v0.3.31 [INFO] [stderr] Checking tracing v0.1.41 [INFO] [stderr] Checking axum-core v0.5.5 [INFO] [stderr] Checking thiserror v1.0.69 [INFO] [stderr] Checking clap v4.5.51 [INFO] [stderr] Checking thiserror v2.0.17 [INFO] [stderr] Checking unescaper v0.1.6 [INFO] [stderr] Checking serialport v4.8.1 [INFO] [stderr] Checking serde v1.0.228 [INFO] [stderr] Checking tracing-serde v0.2.0 [INFO] [stderr] Checking serde_urlencoded v0.7.1 [INFO] [stderr] Checking json5 v0.4.1 [INFO] [stderr] Checking ron v0.8.1 [INFO] [stderr] Checking serde_yaml v0.9.34+deprecated [INFO] [stderr] Checking humantime-serde v1.1.1 [INFO] [stderr] Checking tracing-subscriber v0.3.20 [INFO] [stderr] Checking futures-executor v0.3.31 [INFO] [stderr] Checking futures v0.3.31 [INFO] [stderr] Checking config v0.15.18 [INFO] [stderr] Checking serial_test v3.2.0 [INFO] [stderr] Checking tracing-appender v0.2.3 [INFO] [stderr] Checking hyper v1.7.0 [INFO] [stderr] Checking tower v0.5.2 [INFO] [stderr] Checking hyper-util v0.1.17 [INFO] [stderr] Checking axum v0.8.6 [INFO] [stderr] Checking modbus-relay v2025.11.0 (/opt/rustwide/workdir) [INFO] [stderr] [INFO] [stderr] thread 'rustc' (1217) 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/config/relay.rs:274:5: 274:12 (#97), segments: [PathSegment { ident: #97, id: NodeId(4294967040), args: None }], tokens: None }, args: Unparsed(Empty), tokens: None }, tokens: None }), id: AttrId(443), style: Outer, span: src/config/relay.rs:274:5: 274:12 (#97) } [INFO] [stderr] stack backtrace: [INFO] [stderr] 0: 0x70d85be2bfa3 - <::print::DisplayBacktrace as core[75ca2badb63c4514]::fmt::Display>::fmt [INFO] [stderr] 1: 0x70d85c40fb48 - core[75ca2badb63c4514]::fmt::write [INFO] [stderr] 2: 0x70d85be42226 - ::write_fmt [INFO] [stderr] 3: 0x70d85be01b98 - std[7d609349af90bec6]::panicking::default_hook::{closure#0} [INFO] [stderr] 4: 0x70d85be1f833 - std[7d609349af90bec6]::panicking::default_hook [INFO] [stderr] 5: 0x70d85ae0236a - std[7d609349af90bec6]::panicking::update_hook::>::{closure#0} [INFO] [stderr] 6: 0x70d85be1fb12 - std[7d609349af90bec6]::panicking::panic_with_hook [INFO] [stderr] 7: 0x70d85be01c58 - std[7d609349af90bec6]::panicking::panic_handler::{closure#0} [INFO] [stderr] 8: 0x70d85bdf89a9 - std[7d609349af90bec6]::sys::backtrace::__rust_end_short_backtrace:: [INFO] [stderr] 9: 0x70d85be0372d - __rustc[69841a6cbc58d81d]::rust_begin_unwind [INFO] [stderr] 10: 0x70d858a38f9c - core[75ca2badb63c4514]::panicking::panic_fmt [INFO] [stderr] 11: 0x70d85d1e0110 - ::token_trees [INFO] [stderr] 12: 0x70d85da1c314 - ::fully_expand_fragment [INFO] [stderr] 13: 0x70d85d9e65d2 - ::expand_crate [INFO] [stderr] 14: 0x70d85caf0af3 - rustc_interface[903e43df8d6bd657]::passes::configure_and_expand [INFO] [stderr] 15: 0x70d85d607658 - rustc_interface[903e43df8d6bd657]::passes::resolver_for_lowering_raw [INFO] [stderr] 16: 0x70d85d6073cd - rustc_query_impl[8c5349e00d64015e]::plumbing::__rust_begin_short_backtrace::> [INFO] [stderr] 17: 0x70d85d6073a7 - >::call_once [INFO] [stderr] 18: 0x70d85d5ecb5f - rustc_query_system[d45be4fb383a0235]::query::plumbing::try_execute_query::>, false, false, false>, rustc_query_impl[8c5349e00d64015e]::plumbing::QueryCtxt, false> [INFO] [stderr] 19: 0x70d85d5ec6bc - rustc_query_impl[8c5349e00d64015e]::query_impl::resolver_for_lowering_raw::get_query_non_incr::__rust_end_short_backtrace [INFO] [stderr] 20: 0x70d85d77127b - , 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: 0x70d85d65ac98 - rustc_interface[903e43df8d6bd657]::interface::run_compiler::<(), rustc_driver_impl[3f9d6dd912ac34bd]::run_compiler::{closure#0}>::{closure#1} [INFO] [stderr] 22: 0x70d85d4eac4e - std[7d609349af90bec6]::sys::backtrace::__rust_begin_short_backtrace::::{closure#1}, ()>::{closure#0}, ()>::{closure#0}::{closure#0}, ()> [INFO] [stderr] 23: 0x70d85d4eaa20 - ::{closure#1}, ()>::{closure#0}, ()>::{closure#0}::{closure#0}, ()>::{closure#1} as core[75ca2badb63c4514]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0} [INFO] [stderr] 24: 0x70d85d4ed138 - ::new::thread_start [INFO] [stderr] 25: 0x70d85708aaa4 - [INFO] [stderr] 26: 0x70d857117a64 - 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_59_09-1214.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 `modbus-relay` (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 modbus_relay --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=a647d4f11c862e89 -C extra-filename=-c34b0a5fb6cf089d --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern axum=/opt/rustwide/target/debug/deps/libaxum-fd1c93cfc519d439.rmeta --extern clap=/opt/rustwide/target/debug/deps/libclap-66082fddb6101d55.rmeta --extern config=/opt/rustwide/target/debug/deps/libconfig-a5c7ff7dfe7bb4fd.rmeta --extern futures=/opt/rustwide/target/debug/deps/libfutures-41bd62f60c08e4d7.rmeta --extern hex=/opt/rustwide/target/debug/deps/libhex-4852862d92867e36.rmeta --extern humantime_serde=/opt/rustwide/target/debug/deps/libhumantime_serde-342e429b2de9fc44.rmeta --extern libc=/opt/rustwide/target/debug/deps/liblibc-aafc9602a24f2372.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-bf2ca88e9c2e7201.rmeta --extern serde_yaml=/opt/rustwide/target/debug/deps/libserde_yaml-9ffd768e51b90f47.rmeta --extern serial_test=/opt/rustwide/target/debug/deps/libserial_test-38cfdca4e3c76404.rmeta --extern serialport=/opt/rustwide/target/debug/deps/libserialport-5984427576404131.rmeta --extern socket2=/opt/rustwide/target/debug/deps/libsocket2-42d6904714d1537a.rmeta --extern tempfile=/opt/rustwide/target/debug/deps/libtempfile-dbf02f1598e00da7.rmeta --extern thiserror=/opt/rustwide/target/debug/deps/libthiserror-c0a9b6d8c094b870.rmeta --extern time=/opt/rustwide/target/debug/deps/libtime-32b335d6fabb850e.rmeta --extern tokio=/opt/rustwide/target/debug/deps/libtokio-9039a6f0cdf851e9.rmeta --extern tower=/opt/rustwide/target/debug/deps/libtower-68d7ffcf5cb04d32.rmeta --extern tracing=/opt/rustwide/target/debug/deps/libtracing-194532e5dd7ad485.rmeta --extern tracing_appender=/opt/rustwide/target/debug/deps/libtracing_appender-752af52afcba2f8f.rmeta --extern tracing_subscriber=/opt/rustwide/target/debug/deps/libtracing_subscriber-af9100d7e5635ed4.rmeta --cap-lints=forbid -L native=/usr/lib/x86_64-linux-gnu` (exit status: 101) [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] running `Command { std: "docker" "inspect" "8a95cc0756c9e2f324dd53cb2ee0997d178027b86f4980420422acac8e5c2c17", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "8a95cc0756c9e2f324dd53cb2ee0997d178027b86f4980420422acac8e5c2c17", kill_on_drop: false }` [INFO] [stdout] 8a95cc0756c9e2f324dd53cb2ee0997d178027b86f4980420422acac8e5c2c17