[INFO] fetching crate switchyard-fs 1.0.0... [INFO] checking switchyard-fs-1.0.0 against try#66388cc165a6c4ac98c074dc9f0281ff23528c55 for pr-150727 [INFO] extracting crate switchyard-fs 1.0.0 into /workspace/builds/worker-1-tc2/source [INFO] started tweaking crates.io crate switchyard-fs 1.0.0 [INFO] removed 0 missing examples [INFO] finished tweaking crates.io crate switchyard-fs 1.0.0 [INFO] tweaked toml for crates.io crate switchyard-fs 1.0.0 written to /workspace/builds/worker-1-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate switchyard-fs 1.0.0 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 switchyard-fs 1.0.0 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] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] ebd585b3d8574492a61b1941c159c1992f289a9c8f604dc685811e837849ec4c [INFO] running `Command { std: "docker" "start" "-a" "ebd585b3d8574492a61b1941c159c1992f289a9c8f604dc685811e837849ec4c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "ebd585b3d8574492a61b1941c159c1992f289a9c8f604dc685811e837849ec4c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ebd585b3d8574492a61b1941c159c1992f289a9c8f604dc685811e837849ec4c", kill_on_drop: false }` [INFO] [stdout] ebd585b3d8574492a61b1941c159c1992f289a9c8f604dc685811e837849ec4c [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 0c2182b43971fe08077e102d05a1ef75616b61864922bfa62aaa0e0ea9b25df0 [INFO] running `Command { std: "docker" "start" "-a" "0c2182b43971fe08077e102d05a1ef75616b61864922bfa62aaa0e0ea9b25df0", kill_on_drop: false }` [INFO] [stderr] Checking memchr v2.7.5 [INFO] [stderr] Compiling serde_json v1.0.143 [INFO] [stderr] Compiling rustix v1.0.8 [INFO] [stderr] Compiling futures-macro v0.3.31 [INFO] [stderr] Checking serde v1.0.219 [INFO] [stderr] Checking zerofrom v0.1.6 [INFO] [stderr] Checking indexmap v2.11.1 [INFO] [stderr] Checking tokio v1.47.1 [INFO] [stderr] Checking http v0.2.12 [INFO] [stderr] Compiling sealed v0.5.0 [INFO] [stderr] Checking tracing v0.1.41 [INFO] [stderr] Checking crossbeam-epoch v0.9.18 [INFO] [stderr] Checking parking_lot_core v0.9.11 [INFO] [stderr] Compiling derive_more v0.99.20 [INFO] [stderr] Checking yoke v0.8.0 [INFO] [stderr] Checking unicode-width v0.2.1 [INFO] [stderr] Compiling either v1.15.0 [INFO] [stderr] Checking aho-corasick v1.1.3 [INFO] [stderr] Compiling synthez-core v0.3.1 [INFO] [stderr] Checking bstr v1.12.0 [INFO] [stderr] Compiling peg-runtime v0.6.3 [INFO] [stderr] Checking crossbeam-deque v0.8.6 [INFO] [stderr] Checking zerovec v0.11.4 [INFO] [stderr] Checking zerotrie v0.2.2 [INFO] [stderr] Checking nom v7.1.3 [INFO] [stderr] Compiling clap_derive v4.5.47 [INFO] [stderr] Compiling peg-macros v0.6.3 [INFO] [stderr] Checking http-body v0.4.6 [INFO] [stderr] Checking thiserror v1.0.69 [INFO] [stderr] Checking crypto-common v0.1.6 [INFO] [stderr] Compiling typed-builder-macro v0.15.2 [INFO] [stderr] Checking futures-util v0.3.31 [INFO] [stderr] Compiling rustix v0.38.44 [INFO] [stderr] Compiling synthez-codegen v0.3.1 [INFO] [stderr] Checking winnow v0.7.13 [INFO] [stderr] Checking smawk v0.3.2 [INFO] [stderr] Checking regex-automata v0.4.10 [INFO] [stderr] Checking tinystr v0.8.1 [INFO] [stderr] Checking potential_utf v0.1.3 [INFO] [stderr] Checking icu_collections v2.0.0 [INFO] [stderr] Checking icu_locale_core v2.0.0 [INFO] [stderr] Compiling target-triple v0.1.4 [INFO] [stderr] Compiling regex-syntax v0.7.5 [INFO] [stderr] Checking icu_provider v2.0.0 [INFO] [stderr] Checking peg v0.6.3 [INFO] [stderr] Checking time v0.3.43 [INFO] [stderr] Checking icu_normalizer v2.0.0 [INFO] [stderr] Checking icu_properties v2.0.1 [INFO] [stderr] Checking nom_locate v4.2.0 [INFO] [stderr] Checking typed-builder v0.15.2 [INFO] [stderr] Checking uuid v1.18.1 [INFO] [stderr] Checking textwrap v0.16.2 [INFO] [stderr] Compiling synthez v0.3.1 [INFO] [stderr] Checking terminal_size v0.4.3 [INFO] [stderr] Checking clap_builder v4.5.47 [INFO] [stderr] Checking digest v0.10.7 [INFO] [stderr] Compiling itertools v0.12.1 [INFO] [stderr] Checking nom v8.0.0 [INFO] [stderr] Checking parking_lot v0.12.4 [INFO] [stderr] Compiling pin-project-internal v1.1.10 [INFO] [stderr] Checking toml_writer v1.0.2 [INFO] [stderr] Checking toml_parser v1.0.2 [INFO] [stderr] Checking serde_spanned v1.0.0 [INFO] [stderr] Checking toml_datetime v0.7.0 [INFO] [stderr] Checking serde_urlencoded v0.7.1 [INFO] [stderr] Checking idna_adapter v1.2.1 [INFO] [stderr] Compiling inflections v1.1.1 [INFO] [stderr] Checking regex v1.11.2 [INFO] [stderr] Checking globset v0.4.16 [INFO] [stderr] Checking idna v1.1.0 [INFO] [stderr] Checking linux-raw-sys v0.4.15 [INFO] [stderr] Checking cucumber-expressions v0.3.0 [INFO] [stderr] Checking futures-executor v0.3.31 [INFO] [stderr] Checking toml v0.9.5 [INFO] [stderr] Checking dashmap v5.5.3 [INFO] [stderr] Checking url v2.5.7 [INFO] [stderr] Checking fancy-regex v0.11.0 [INFO] [stderr] Checking ignore v0.4.23 [INFO] [stderr] Checking futures v0.3.31 [INFO] [stderr] Checking sha2 v0.10.9 [INFO] [stderr] Checking ahash v0.8.12 [INFO] [stderr] Checking tokio-util v0.7.16 [INFO] [stderr] Checking serde_yaml v0.9.34+deprecated [INFO] [stderr] Checking fraction v0.13.1 [INFO] [stderr] Checking xattr v1.5.1 [INFO] [stderr] Checking globwalk v0.8.1 [INFO] [stderr] Checking console v0.15.11 [INFO] [stderr] Checking pin-project v1.1.10 [INFO] [stderr] Compiling async-trait v0.1.89 [INFO] [stderr] Checking fs2 v0.4.3 [INFO] [stderr] Compiling serial_test_derive v2.0.0 [INFO] [stderr] Compiling smart-default v0.7.1 [INFO] [stderr] Checking h2 v0.3.27 [INFO] [stderr] Checking clap v4.5.47 [INFO] [stderr] Checking inventory v0.3.21 [INFO] [stderr] Checking drain_filter_polyfill v0.1.3 [INFO] [stderr] Checking trybuild v1.0.110 [INFO] [stderr] Checking tempfile v3.21.0 [INFO] [stderr] Checking serial_test v2.0.0 [INFO] [stderr] Compiling gherkin v0.14.0 [INFO] [stderr] Compiling lazy-regex-proc_macros v3.4.1 [INFO] [stderr] Checking switchyard-fs v1.0.0 (/opt/rustwide/workdir) [INFO] [stderr] Checking iso8601 v0.6.3 [INFO] [stderr] Compiling cucumber-codegen v0.20.2 [INFO] [stderr] Checking lazy-regex v3.4.1 [INFO] [stderr] Checking cucumber v0.20.2 [INFO] [stderr] Checking hyper v0.14.32 [INFO] [stderr] Checking reqwest v0.11.27 [INFO] [stderr] Checking jsonschema v0.17.1 [INFO] [stderr] [INFO] [stderr] thread 'rustc' (1307) 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/policy/rescue.rs:150:5: 150:12 (#1111), segments: [PathSegment { ident: #1111, id: NodeId(4294967040), args: None }], tokens: None }, args: Unparsed(Empty), tokens: None }, tokens: None }), id: AttrId(1278), style: Outer, span: src/policy/rescue.rs:150:5: 150:12 (#1111) } [INFO] [stderr] stack backtrace: [INFO] [stderr] 0: 0x7a230ae2bfa3 - <::print::DisplayBacktrace as core[75ca2badb63c4514]::fmt::Display>::fmt [INFO] [stderr] 1: 0x7a230b40fb48 - core[75ca2badb63c4514]::fmt::write [INFO] [stderr] 2: 0x7a230ae42226 - ::write_fmt [INFO] [stderr] 3: 0x7a230ae01b98 - std[7d609349af90bec6]::panicking::default_hook::{closure#0} [INFO] [stderr] 4: 0x7a230ae1f833 - std[7d609349af90bec6]::panicking::default_hook [INFO] [stderr] 5: 0x7a2309e0236a - std[7d609349af90bec6]::panicking::update_hook::>::{closure#0} [INFO] [stderr] 6: 0x7a230ae1fb12 - std[7d609349af90bec6]::panicking::panic_with_hook [INFO] [stderr] 7: 0x7a230ae01c58 - std[7d609349af90bec6]::panicking::panic_handler::{closure#0} [INFO] [stderr] 8: 0x7a230adf89a9 - std[7d609349af90bec6]::sys::backtrace::__rust_end_short_backtrace:: [INFO] [stderr] 9: 0x7a230ae0372d - __rustc[69841a6cbc58d81d]::rust_begin_unwind [INFO] [stderr] 10: 0x7a2307a38f9c - core[75ca2badb63c4514]::panicking::panic_fmt [INFO] [stderr] 11: 0x7a230c1e0110 - ::token_trees [INFO] [stderr] 12: 0x7a230ca1c314 - ::fully_expand_fragment [INFO] [stderr] 13: 0x7a230c9e65d2 - ::expand_crate [INFO] [stderr] 14: 0x7a230baf0af3 - rustc_interface[903e43df8d6bd657]::passes::configure_and_expand [INFO] [stderr] 15: 0x7a230c607658 - rustc_interface[903e43df8d6bd657]::passes::resolver_for_lowering_raw [INFO] [stderr] 16: 0x7a230c6073cd - rustc_query_impl[8c5349e00d64015e]::plumbing::__rust_begin_short_backtrace::> [INFO] [stderr] 17: 0x7a230c6073a7 - >::call_once [INFO] [stderr] 18: 0x7a230c5ecb5f - rustc_query_system[d45be4fb383a0235]::query::plumbing::try_execute_query::>, false, false, false>, rustc_query_impl[8c5349e00d64015e]::plumbing::QueryCtxt, false> [INFO] [stderr] 19: 0x7a230c5ec6bc - rustc_query_impl[8c5349e00d64015e]::query_impl::resolver_for_lowering_raw::get_query_non_incr::__rust_end_short_backtrace [INFO] [stderr] 20: 0x7a230c77127b - , 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: 0x7a230c65ac98 - rustc_interface[903e43df8d6bd657]::interface::run_compiler::<(), rustc_driver_impl[3f9d6dd912ac34bd]::run_compiler::{closure#0}>::{closure#1} [INFO] [stderr] 22: 0x7a230c4eac4e - std[7d609349af90bec6]::sys::backtrace::__rust_begin_short_backtrace::::{closure#1}, ()>::{closure#0}, ()>::{closure#0}::{closure#0}, ()> [INFO] [stderr] 23: 0x7a230c4eaa20 - ::{closure#1}, ()>::{closure#0}, ()>::{closure#0}::{closure#0}, ()>::{closure#1} as core[75ca2badb63c4514]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0} [INFO] [stderr] 24: 0x7a230c4ed138 - ::new::thread_start [INFO] [stderr] 25: 0x7a230608aaa4 - [INFO] [stderr] 26: 0x7a2306117a64 - 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_14_01-1295.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 `switchyard-fs` (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 switchyard --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 --cfg 'feature="default"' --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values("bdd", "default", "envmeta", "file-logging", "prod", "tracing"))' -C metadata=3c95d8367fc4f006 -C extra-filename=-42bd7230c22b899b --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern async_trait=/opt/rustwide/target/debug/deps/libasync_trait-881cd3358116e88c.so --extern base64=/opt/rustwide/target/debug/deps/libbase64-d8aec028dea2d277.rmeta --extern cucumber=/opt/rustwide/target/debug/deps/libcucumber-998156b7fa51e654.rmeta --extern fs2=/opt/rustwide/target/debug/deps/libfs2-3ebeee520ae424b7.rmeta --extern hex=/opt/rustwide/target/debug/deps/libhex-4852862d92867e36.rmeta --extern jsonschema=/opt/rustwide/target/debug/deps/libjsonschema-43ce3024b36bcf4f.rmeta --extern libc=/opt/rustwide/target/debug/deps/liblibc-7cb8a163e7d964d6.rmeta --extern log=/opt/rustwide/target/debug/deps/liblog-f0efc98faf8f1763.rmeta --extern rustix=/opt/rustwide/target/debug/deps/librustix-d537a66ce7ae8ea5.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-82c497e5c962581a.rmeta --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-17209bc53bd639a0.rmeta --extern serde_yaml=/opt/rustwide/target/debug/deps/libserde_yaml-3b6e0d653be951a2.rmeta --extern serial_test=/opt/rustwide/target/debug/deps/libserial_test-efef0111561441ae.rmeta --extern sha2=/opt/rustwide/target/debug/deps/libsha2-2f1b39bc206eac5a.rmeta --extern tempfile=/opt/rustwide/target/debug/deps/libtempfile-ac582a907194a544.rmeta --extern thiserror=/opt/rustwide/target/debug/deps/libthiserror-b0dabe262898bc07.rmeta --extern time=/opt/rustwide/target/debug/deps/libtime-778659310f411508.rmeta --extern tokio=/opt/rustwide/target/debug/deps/libtokio-17bc16b3776ca22e.rmeta --extern trybuild=/opt/rustwide/target/debug/deps/libtrybuild-755f35564f2364f2.rmeta --extern uuid=/opt/rustwide/target/debug/deps/libuuid-9fb5d9509bf3e222.rmeta --extern xattr=/opt/rustwide/target/debug/deps/libxattr-c2dbb6b5a7ed2cc9.rmeta --cap-lints=forbid` (exit status: 101) [INFO] running `Command { std: "docker" "inspect" "0c2182b43971fe08077e102d05a1ef75616b61864922bfa62aaa0e0ea9b25df0", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "0c2182b43971fe08077e102d05a1ef75616b61864922bfa62aaa0e0ea9b25df0", kill_on_drop: false }` [INFO] [stdout] 0c2182b43971fe08077e102d05a1ef75616b61864922bfa62aaa0e0ea9b25df0