[INFO] fetching crate mcp25xx 0.4.0...
[INFO] testing mcp25xx-0.4.0 against 1.91.0 for beta-1.92-2
[INFO] extracting crate mcp25xx 0.4.0 into /workspace/builds/worker-2-tc1/source
[INFO] removed /workspace/builds/worker-2-tc1/source/rust-toolchain.toml
[INFO] started tweaking crates.io crate mcp25xx 0.4.0
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate mcp25xx 0.4.0
[INFO] tweaked toml for crates.io crate mcp25xx 0.4.0 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate mcp25xx 0.4.0 on toolchain 1.91.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.91.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate mcp25xx 0.4.0 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" "+1.91.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded num-complex v0.3.1
[INFO] [stderr]   Downloaded modular-bitfield-impl v0.12.0
[INFO] [stderr]   Downloaded embedded-hal-mock v0.11.1
[INFO] [stderr]   Downloaded embedded-can v0.4.1
[INFO] [stderr]   Downloaded num v0.3.1
[INFO] [stderr]   Downloaded modular-bitfield v0.12.0
[INFO] [stderr]   Downloaded embedded-time v0.12.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 307b3fad6c0085191d4abd300e93159a978fc3683aad8c020e29f385eac8f7bd
[INFO] running `Command { std: "docker" "start" "-a" "307b3fad6c0085191d4abd300e93159a978fc3683aad8c020e29f385eac8f7bd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "307b3fad6c0085191d4abd300e93159a978fc3683aad8c020e29f385eac8f7bd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "307b3fad6c0085191d4abd300e93159a978fc3683aad8c020e29f385eac8f7bd", kill_on_drop: false }`
[INFO] [stdout] 307b3fad6c0085191d4abd300e93159a978fc3683aad8c020e29f385eac8f7bd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 747c38c5c228275778df55d054bb06694a0442650aed651b2dbb272f743452af
[INFO] running `Command { std: "docker" "start" "-a" "747c38c5c228275778df55d054bb06694a0442650aed651b2dbb272f743452af", kill_on_drop: false }`
[INFO] [stderr]    Compiling nb v1.1.0
[INFO] [stderr]    Compiling embedded-hal v1.0.0
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]    Compiling embedded-can v0.4.1
[INFO] [stderr]    Compiling modular-bitfield-impl v0.12.0
[INFO] [stderr]    Compiling modular-bitfield v0.12.0
[INFO] [stderr]    Compiling mcp25xx v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.59s
[INFO] running `Command { std: "docker" "inspect" "747c38c5c228275778df55d054bb06694a0442650aed651b2dbb272f743452af", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "747c38c5c228275778df55d054bb06694a0442650aed651b2dbb272f743452af", kill_on_drop: false }`
[INFO] [stdout] 747c38c5c228275778df55d054bb06694a0442650aed651b2dbb272f743452af
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3443d558048a36712708caeed3ed3439b2d175f40a3f407dea902aac690194fd
[INFO] running `Command { std: "docker" "start" "-a" "3443d558048a36712708caeed3ed3439b2d175f40a3f407dea902aac690194fd", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling num-rational v0.3.2
[INFO] [stderr]    Compiling nb v0.1.3
[INFO] [stderr]    Compiling embedded-hal-nb v1.0.0
[INFO] [stderr]    Compiling embedded-hal v0.2.7
[INFO] [stderr]    Compiling num-integer v0.1.46
[INFO] [stderr]    Compiling num-complex v0.3.1
[INFO] [stderr]    Compiling num-iter v0.1.45
[INFO] [stderr]    Compiling num v0.3.1
[INFO] [stderr]    Compiling embedded-time v0.12.1
[INFO] [stderr]    Compiling embedded-hal-mock v0.11.1
[INFO] [stderr]    Compiling mcp25xx v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 5.22s
[INFO] running `Command { std: "docker" "inspect" "3443d558048a36712708caeed3ed3439b2d175f40a3f407dea902aac690194fd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3443d558048a36712708caeed3ed3439b2d175f40a3f407dea902aac690194fd", kill_on_drop: false }`
[INFO] [stdout] 3443d558048a36712708caeed3ed3439b2d175f40a3f407dea902aac690194fd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 3bafa96cd74063cbce98fb8bb3c0da06f1863e1bb56013d5a9526447e8c6d9a1
[INFO] running `Command { std: "docker" "start" "-a" "3bafa96cd74063cbce98fb8bb3c0da06f1863e1bb56013d5a9526447e8c6d9a1", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.10s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/mcp25xx-fc3be55777d042c9)
[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]      Running tests/check_bitrates.rs (/opt/rustwide/target/debug/deps/check_bitrates-3084da6854d34ea7)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stderr]      Running tests/test.rs (/opt/rustwide/target/debug/deps/test-2f517a0380f86930)
[INFO] [stdout] test test_bitrates ... ok
[INFO] [stdout] test test_print_bitrate ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stderr]    Doc-tests mcp25xx
[INFO] [stdout] test test_set_bitrate ... ok
[INFO] [stdout] test test_transmit ... ok
[INFO] [stdout] test test_set_mode ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stderr]   --> src/lib.rs:45:18
[INFO] [stderr]    |
[INFO] [stderr] 45 | #![cfg_attr(doc, feature(doc_cfg))]
[INFO] [stderr]    |                  ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 1 previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0554`.
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/1.91.0-x86_64-unknown-linux-gnu/bin/rustdoc --edition=2024 --crate-type lib --color auto --crate-name mcp25xx --test src/lib.rs --test-run-directory /opt/rustwide/workdir -L dependency=/opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern embedded_can=/opt/rustwide/target/debug/deps/libembedded_can-c701267faf21c5ba.rlib --extern embedded_hal=/opt/rustwide/target/debug/deps/libembedded_hal-deca3bef86e97e4e.rlib --extern embedded_hal_mock=/opt/rustwide/target/debug/deps/libembedded_hal_mock-dfd7e40f63b678a7.rlib --extern mcp25xx=/opt/rustwide/target/debug/deps/libmcp25xx-f02a180e90ef99e5.rlib --extern modular_bitfield=/opt/rustwide/target/debug/deps/libmodular_bitfield-b3b3ce4e7ac7926e.rlib --extern nb=/opt/rustwide/target/debug/deps/libnb-5d5d765a518b0c11.rlib -C embed-bitcode=no --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values("mcp2515", "mcp25625"))' --cap-lints=warn --error-format human` (exit status: 1)
[INFO] [stderr] note: test exited abnormally; to see the full output pass --no-capture to the harness.
[INFO] running `Command { std: "docker" "inspect" "3bafa96cd74063cbce98fb8bb3c0da06f1863e1bb56013d5a9526447e8c6d9a1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3bafa96cd74063cbce98fb8bb3c0da06f1863e1bb56013d5a9526447e8c6d9a1", kill_on_drop: false }`
[INFO] [stdout] 3bafa96cd74063cbce98fb8bb3c0da06f1863e1bb56013d5a9526447e8c6d9a1