[INFO] fetching crate polystem 0.3.0...
[INFO] testing polystem-0.3.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate polystem 0.3.0 into /workspace/builds/worker-104/source
[INFO] validating manifest of crates.io crate polystem 0.3.0 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate polystem 0.3.0
[INFO] finished tweaking crates.io crate polystem 0.3.0
[INFO] tweaked toml for crates.io crate polystem 0.3.0 written to /workspace/builds/worker-104/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "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-104/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-104/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b24793d73107c955c5ba7ff597d555ee184d4a2de1955f1e45139721aeef5851
[INFO] running `Command { std: "docker" "start" "-a" "b24793d73107c955c5ba7ff597d555ee184d4a2de1955f1e45139721aeef5851", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b24793d73107c955c5ba7ff597d555ee184d4a2de1955f1e45139721aeef5851", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b24793d73107c955c5ba7ff597d555ee184d4a2de1955f1e45139721aeef5851", kill_on_drop: false }`
[INFO] [stdout] b24793d73107c955c5ba7ff597d555ee184d4a2de1955f1e45139721aeef5851
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-104/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-104/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a45e83552c0d92f266e362df947fb22698f75262d4726c2513892d178bde6a93
[INFO] running `Command { std: "docker" "start" "-a" "a45e83552c0d92f266e362df947fb22698f75262d4726c2513892d178bde6a93", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling polystem v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.30s
[INFO] running `Command { std: "docker" "inspect" "a45e83552c0d92f266e362df947fb22698f75262d4726c2513892d178bde6a93", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a45e83552c0d92f266e362df947fb22698f75262d4726c2513892d178bde6a93", kill_on_drop: false }`
[INFO] [stdout] a45e83552c0d92f266e362df947fb22698f75262d4726c2513892d178bde6a93
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-104/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-104/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a17ea267bce7ef48e7b326361eeed770598dfa1efb17fbca9c5dcef1e5d2c841
[INFO] running `Command { std: "docker" "start" "-a" "a17ea267bce7ef48e7b326361eeed770598dfa1efb17fbca9c5dcef1e5d2c841", kill_on_drop: false }`
[INFO] [stderr]    Compiling polystem v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.25s
[INFO] running `Command { std: "docker" "inspect" "a17ea267bce7ef48e7b326361eeed770598dfa1efb17fbca9c5dcef1e5d2c841", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a17ea267bce7ef48e7b326361eeed770598dfa1efb17fbca9c5dcef1e5d2c841", kill_on_drop: false }`
[INFO] [stdout] a17ea267bce7ef48e7b326361eeed770598dfa1efb17fbca9c5dcef1e5d2c841
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-104/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-104/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] da530c7c7af2f31f159415dbaf3d07b9f6eed6a056b7ac64955315aa2c4e3390
[INFO] running `Command { std: "docker" "start" "-a" "da530c7c7af2f31f159415dbaf3d07b9f6eed6a056b7ac64955315aa2c4e3390", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.18s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/polystem-fcd24f5019dd5e68)
[INFO] [stdout] 
[INFO] [stdout] running 9 tests
[INFO] [stdout] test tests::test_count ... ok
[INFO] [stdout] test tests::test_cvc ... ok
[INFO] [stdout] test tests::test_double_consonant ... ok
[INFO] [stdout] test tests::test_ends_with ... ok
[INFO] [stdout] test tests::test_is_consonant ... ok
[INFO] [stdout] test tests::test_replace ... ok
[INFO] [stdout] test tests::test_s_stem ... ok
[INFO] [stdout] test tests::test_has_vowel ... ok
[INFO] [stderr]    Doc-tests polystem
[INFO] [stdout] test tests::test_porter_stem ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 9 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.10s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - S::stem (line 24) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.56s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "da530c7c7af2f31f159415dbaf3d07b9f6eed6a056b7ac64955315aa2c4e3390", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "da530c7c7af2f31f159415dbaf3d07b9f6eed6a056b7ac64955315aa2c4e3390", kill_on_drop: false }`
[INFO] [stdout] da530c7c7af2f31f159415dbaf3d07b9f6eed6a056b7ac64955315aa2c4e3390