[INFO] fetching crate subject-classifier 0.2.0...
[INFO] testing subject-classifier-0.2.0 against beta-2022-02-22 for beta-1.60-1
[INFO] extracting crate subject-classifier 0.2.0 into /workspace/builds/worker-72/source
[INFO] validating manifest of crates.io crate subject-classifier 0.2.0 on toolchain beta-2022-02-22
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate subject-classifier 0.2.0
[INFO] finished tweaking crates.io crate subject-classifier 0.2.0
[INFO] tweaked toml for crates.io crate subject-classifier 0.2.0 written to /workspace/builds/worker-72/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-72/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-72/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5a1c5614c0dfa029a43f045887ec09e8885afbcbb6c7f209f663a8990415ee23
[INFO] running `Command { std: "docker" "start" "-a" "5a1c5614c0dfa029a43f045887ec09e8885afbcbb6c7f209f663a8990415ee23", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5a1c5614c0dfa029a43f045887ec09e8885afbcbb6c7f209f663a8990415ee23", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5a1c5614c0dfa029a43f045887ec09e8885afbcbb6c7f209f663a8990415ee23", kill_on_drop: false }`
[INFO] [stdout] 5a1c5614c0dfa029a43f045887ec09e8885afbcbb6c7f209f663a8990415ee23
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-72/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-72/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" "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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ae44793cf3b67b7d15d2424fbb910f9d7bf5561152e7b17ec5bf8e5499c2d09a
[INFO] running `Command { std: "docker" "start" "-a" "ae44793cf3b67b7d15d2424fbb910f9d7bf5561152e7b17ec5bf8e5499c2d09a", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling aho-corasick v0.7.18
[INFO] [stderr]    Compiling regex v1.5.4
[INFO] [stderr]    Compiling subject-classifier v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.91s
[INFO] running `Command { std: "docker" "inspect" "ae44793cf3b67b7d15d2424fbb910f9d7bf5561152e7b17ec5bf8e5499c2d09a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ae44793cf3b67b7d15d2424fbb910f9d7bf5561152e7b17ec5bf8e5499c2d09a", kill_on_drop: false }`
[INFO] [stdout] ae44793cf3b67b7d15d2424fbb910f9d7bf5561152e7b17ec5bf8e5499c2d09a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-72/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-72/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" "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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bf28618caed6ee4812ed98b26e91752c0fe90d00b95d075aecefa519d0b86250
[INFO] running `Command { std: "docker" "start" "-a" "bf28618caed6ee4812ed98b26e91752c0fe90d00b95d075aecefa519d0b86250", kill_on_drop: false }`
[INFO] [stderr]    Compiling subject-classifier v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.49s
[INFO] running `Command { std: "docker" "inspect" "bf28618caed6ee4812ed98b26e91752c0fe90d00b95d075aecefa519d0b86250", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bf28618caed6ee4812ed98b26e91752c0fe90d00b95d075aecefa519d0b86250", kill_on_drop: false }`
[INFO] [stdout] bf28618caed6ee4812ed98b26e91752c0fe90d00b95d075aecefa519d0b86250
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-72/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-72/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" "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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 36f7c5cfc725340c65a41f991128a1cdc2d438c2756b3ce9547cba070f7cffdd
[INFO] running `Command { std: "docker" "start" "-a" "36f7c5cfc725340c65a41f991128a1cdc2d438c2756b3ce9547cba070f7cffdd", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/subject_classifier-9b3b74f0b6b37a83)
[INFO] [stdout] 
[INFO] [stdout] running 19 tests
[INFO] [stdout] test tests::archive ... ok
[INFO] [stdout] test tests::breaking_change ... ok
[INFO] [stdout] test tests::ci ... ok
[INFO] [stdout] test tests::build ... ok
[INFO] [stdout] test tests::change ... ok
[INFO] [stdout] test tests::deps ... ok
[INFO] [stdout] test tests::docs ... ok
[INFO] [stdout] test tests::import_subtree ... ok
[INFO] [stdout] test tests::other ... ok
[INFO] [stdout] test tests::pr ... ok
[INFO] [stdout] test tests::release1 ... ok
[INFO] [stdout] test tests::scope_breaking_change ... ok
[INFO] [stdout] test tests::release2 ... ok
[INFO] [stdout] test tests::security ... ok
[INFO] [stdout] test tests::split_subtree ... ok
[INFO] [stdout] test tests::update_subtree ... ok
[INFO] [stdout] test tests::deprecate ... ok
[INFO] [stdout] test tests::revert ... ok
[INFO] [stdout] test tests::rename ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 19 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.03s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests subject-classifier
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/lib.rs - Subject (line 80) ... FAILED
[INFO] [stdout] test src/lib.rs - (line 6) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - Subject (line 80) stdout ----
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Subject`
[INFO] [stdout]  --> src/lib.rs:81:15
[INFO] [stdout]   |
[INFO] [stdout] 3 | let subject = Subject::from("feat: Some new feature");
[INFO] [stdout]   |               ^^^^^^^ not found in this scope
[INFO] [stdout]   |
[INFO] [stdout] help: consider importing this enum
[INFO] [stdout]   |
[INFO] [stdout] 2 | use subject_classifier::Subject;
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - (line 6) stdout ----
[INFO] [stdout] error[E0277]: `Option<String>` doesn't implement `std::fmt::Display`
[INFO] [stdout]  --> src/lib.rs:12:9
[INFO] [stdout]   |
[INFO] [stdout] 9 |         subject.scope(),
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^ `Option<String>` cannot be formatted with the default formatter
[INFO] [stdout]   |
[INFO] [stdout]   = help: the trait `std::fmt::Display` is not implemented for `Option<String>`
[INFO] [stdout]   = note: in format strings you may be able to use `{:?}` (or {:#?} for pretty-print) instead
[INFO] [stdout]   = note: this error originates in the macro `$crate::format_args_nl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] error[E0615]: attempted to take value of method `description` on type `Subject`
[INFO] [stdout]   --> src/lib.rs:13:17
[INFO] [stdout]    |
[INFO] [stdout] 10 |         subject.description);
[INFO] [stdout]    |                 ^^^^^^^^^^^ method, not a field
[INFO] [stdout]    |
[INFO] [stdout] help: use parentheses to call the method
[INFO] [stdout]    |
[INFO] [stdout] 10 |         subject.description());
[INFO] [stdout]    |                            ++
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0277, E0615.
[INFO] [stdout] For more information about an error, try `rustc --explain E0277`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs - (line 6)
[INFO] [stdout]     src/lib.rs - Subject (line 80)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 2 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.10s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass '--doc'
[INFO] running `Command { std: "docker" "inspect" "36f7c5cfc725340c65a41f991128a1cdc2d438c2756b3ce9547cba070f7cffdd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "36f7c5cfc725340c65a41f991128a1cdc2d438c2756b3ce9547cba070f7cffdd", kill_on_drop: false }`
[INFO] [stdout] 36f7c5cfc725340c65a41f991128a1cdc2d438c2756b3ce9547cba070f7cffdd