[INFO] fetching crate scoped-mutex 0.1.0... [INFO] testing scoped-mutex-0.1.0 against beta-2025-09-21 for beta-1.91-3 [INFO] extracting crate scoped-mutex 0.1.0 into /workspace/builds/worker-6-tc2/source [INFO] started tweaking crates.io crate scoped-mutex 0.1.0 [INFO] finished tweaking crates.io crate scoped-mutex 0.1.0 [INFO] tweaked toml for crates.io crate scoped-mutex 0.1.0 written to /workspace/builds/worker-6-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate scoped-mutex 0.1.0 on toolchain beta-2025-09-21 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Locking 2 packages to latest compatible versions [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 930cfd4426666b0a2856146019d67ebebceda4f2abe82020e6e399593d64ca78 [INFO] running `Command { std: "docker" "start" "-a" "930cfd4426666b0a2856146019d67ebebceda4f2abe82020e6e399593d64ca78", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "930cfd4426666b0a2856146019d67ebebceda4f2abe82020e6e399593d64ca78", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "930cfd4426666b0a2856146019d67ebebceda4f2abe82020e6e399593d64ca78", kill_on_drop: false }` [INFO] [stdout] 930cfd4426666b0a2856146019d67ebebceda4f2abe82020e6e399593d64ca78 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 57624412a9b5c5ea80d99e895fe09d558d1014b75632d36090eef8397ebf85e8 [INFO] running `Command { std: "docker" "start" "-a" "57624412a9b5c5ea80d99e895fe09d558d1014b75632d36090eef8397ebf85e8", kill_on_drop: false }` [INFO] [stderr] Compiling scoped-mutex v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] Compiling scoped-mutex-traits v1.0.0 [INFO] [stderr] Compiling critical-section v1.2.0 [INFO] [stdout] warning: unexpected `cfg` condition name: `cortex_m` [INFO] [stdout] --> src/raw_impls.rs:138:57 [INFO] [stdout] | [INFO] [stdout] 138 | #[cfg(all(feature = "impl-unsafe-cortex-m-single-core", cortex_m))] [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: expected names are: `docsrs`, `feature`, and `test` and 31 more [INFO] [stdout] = help: consider using a Cargo feature instead [INFO] [stdout] = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint: [INFO] [stdout] [lints.rust] [INFO] [stdout] unexpected_cfgs = { level = "warn", check-cfg = ['cfg(cortex_m)'] } [INFO] [stdout] = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(cortex_m)");` to the top of the `build.rs` [INFO] [stdout] = note: see for more information about checking conditional configuration [INFO] [stdout] = note: `#[warn(unexpected_cfgs)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks [INFO] [stdout] --> src/raw_impls.rs:46:9 [INFO] [stdout] | [INFO] [stdout] 46 | #[must_use] [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! [INFO] [stdout] = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits [INFO] [stdout] = note: `#[warn(unused_attributes)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks [INFO] [stdout] --> src/raw_impls.rs:109:9 [INFO] [stdout] | [INFO] [stdout] 109 | #[must_use] [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! [INFO] [stdout] = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.57s [INFO] running `Command { std: "docker" "inspect" "57624412a9b5c5ea80d99e895fe09d558d1014b75632d36090eef8397ebf85e8", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "57624412a9b5c5ea80d99e895fe09d558d1014b75632d36090eef8397ebf85e8", kill_on_drop: false }` [INFO] [stdout] 57624412a9b5c5ea80d99e895fe09d558d1014b75632d36090eef8397ebf85e8 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] f7103d83a176205dd44d2521aebfd2cac18a9a9b9b2665e547d6139d66fdd4b1 [INFO] running `Command { std: "docker" "start" "-a" "f7103d83a176205dd44d2521aebfd2cac18a9a9b9b2665e547d6139d66fdd4b1", kill_on_drop: false }` [INFO] [stdout] warning: unexpected `cfg` condition name: `cortex_m` [INFO] [stdout] --> src/raw_impls.rs:138:57 [INFO] [stdout] | [INFO] [stdout] 138 | #[cfg(all(feature = "impl-unsafe-cortex-m-single-core", cortex_m))] [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: expected names are: `docsrs`, `feature`, and `test` and 31 more [INFO] [stdout] = help: consider using a Cargo feature instead [INFO] [stdout] = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint: [INFO] [stdout] [lints.rust] [INFO] [stdout] unexpected_cfgs = { level = "warn", check-cfg = ['cfg(cortex_m)'] } [INFO] [stdout] = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(cortex_m)");` to the top of the `build.rs` [INFO] [stdout] = note: see for more information about checking conditional configuration [INFO] [stdout] = note: `#[warn(unexpected_cfgs)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks [INFO] [stdout] --> src/raw_impls.rs:46:9 [INFO] [stdout] | [INFO] [stdout] 46 | #[must_use] [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! [INFO] [stdout] = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits [INFO] [stdout] = note: `#[warn(unused_attributes)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks [INFO] [stdout] --> src/raw_impls.rs:109:9 [INFO] [stdout] | [INFO] [stdout] 109 | #[must_use] [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! [INFO] [stdout] = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling scoped-mutex v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unexpected `cfg` condition name: `cortex_m` [INFO] [stdout] --> src/raw_impls.rs:138:57 [INFO] [stdout] | [INFO] [stdout] 138 | #[cfg(all(feature = "impl-unsafe-cortex-m-single-core", cortex_m))] [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: expected names are: `docsrs`, `feature`, and `test` and 31 more [INFO] [stdout] = help: consider using a Cargo feature instead [INFO] [stdout] = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint: [INFO] [stdout] [lints.rust] [INFO] [stdout] unexpected_cfgs = { level = "warn", check-cfg = ['cfg(cortex_m)'] } [INFO] [stdout] = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(cortex_m)");` to the top of the `build.rs` [INFO] [stdout] = note: see for more information about checking conditional configuration [INFO] [stdout] = note: `#[warn(unexpected_cfgs)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks [INFO] [stdout] --> src/raw_impls.rs:46:9 [INFO] [stdout] | [INFO] [stdout] 46 | #[must_use] [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! [INFO] [stdout] = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits [INFO] [stdout] = note: `#[warn(unused_attributes)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks [INFO] [stdout] --> src/raw_impls.rs:109:9 [INFO] [stdout] | [INFO] [stdout] 109 | #[must_use] [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! [INFO] [stdout] = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.27s [INFO] running `Command { std: "docker" "inspect" "f7103d83a176205dd44d2521aebfd2cac18a9a9b9b2665e547d6139d66fdd4b1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f7103d83a176205dd44d2521aebfd2cac18a9a9b9b2665e547d6139d66fdd4b1", kill_on_drop: false }` [INFO] [stdout] f7103d83a176205dd44d2521aebfd2cac18a9a9b9b2665e547d6139d66fdd4b1 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] f15f0276a2b916668d538eb8a547fbe6d2a54ec99641226b28f743f7d5370332 [INFO] running `Command { std: "docker" "start" "-a" "f15f0276a2b916668d538eb8a547fbe6d2a54ec99641226b28f743f7d5370332", kill_on_drop: false }` [INFO] [stderr] warning: unexpected `cfg` condition name: `cortex_m` [INFO] [stderr] --> src/raw_impls.rs:138:57 [INFO] [stderr] | [INFO] [stderr] 138 | #[cfg(all(feature = "impl-unsafe-cortex-m-single-core", cortex_m))] [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = help: expected names are: `docsrs`, `feature`, and `test` and 31 more [INFO] [stderr] = help: consider using a Cargo feature instead [INFO] [stderr] = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint: [INFO] [stderr] [lints.rust] [INFO] [stderr] unexpected_cfgs = { level = "warn", check-cfg = ['cfg(cortex_m)'] } [INFO] [stderr] = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(cortex_m)");` to the top of the `build.rs` [INFO] [stderr] = note: see for more information about checking conditional configuration [INFO] [stderr] = note: `#[warn(unexpected_cfgs)]` on by default [INFO] [stderr] [INFO] [stderr] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks [INFO] [stderr] --> src/raw_impls.rs:46:9 [INFO] [stderr] | [INFO] [stderr] 46 | #[must_use] [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! [INFO] [stderr] = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits [INFO] [stderr] = note: `#[warn(unused_attributes)]` (part of `#[warn(unused)]`) on by default [INFO] [stderr] [INFO] [stderr] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks [INFO] [stderr] --> src/raw_impls.rs:109:9 [INFO] [stderr] | [INFO] [stderr] 109 | #[must_use] [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! [INFO] [stderr] = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits [INFO] [stderr] [INFO] [stderr] warning: `scoped-mutex` (lib) generated 3 warnings (run `cargo fix --lib -p scoped-mutex` to apply 2 suggestions) [INFO] [stderr] warning: `scoped-mutex` (lib test) generated 3 warnings (3 duplicates) [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s [INFO] [stderr] Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/scoped_mutex-a9befaa9314e39f0) [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] [stderr] Doc-tests scoped_mutex [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "f15f0276a2b916668d538eb8a547fbe6d2a54ec99641226b28f743f7d5370332", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f15f0276a2b916668d538eb8a547fbe6d2a54ec99641226b28f743f7d5370332", kill_on_drop: false }` [INFO] [stdout] f15f0276a2b916668d538eb8a547fbe6d2a54ec99641226b28f743f7d5370332