[INFO] fetching crate monoid 0.0.5...
[INFO] testing monoid-0.0.5 against 1.55.0 for beta-1.56-1
[INFO] extracting crate monoid 0.0.5 into /workspace/builds/worker-44/source
[INFO] validating manifest of crates.io crate monoid 0.0.5 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 monoid 0.0.5
[INFO] finished tweaking crates.io crate monoid 0.0.5
[INFO] tweaked toml for crates.io crate monoid 0.0.5 written to /workspace/builds/worker-44/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] 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-44/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-44/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] e3549f483564f42cdfa473085f45a915c6ec4b433be2490fd10c857c864ba390
[INFO] running `Command { std: "docker" "start" "-a" "e3549f483564f42cdfa473085f45a915c6ec4b433be2490fd10c857c864ba390", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e3549f483564f42cdfa473085f45a915c6ec4b433be2490fd10c857c864ba390", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e3549f483564f42cdfa473085f45a915c6ec4b433be2490fd10c857c864ba390", kill_on_drop: false }`
[INFO] [stdout] e3549f483564f42cdfa473085f45a915c6ec4b433be2490fd10c857c864ba390
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-44/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-44/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] 82009925f1355bb9ec238eba3120c8ed56caaa79ce174b8efa4fe2c93f35a216
[INFO] running `Command { std: "docker" "start" "-a" "82009925f1355bb9ec238eba3120c8ed56caaa79ce174b8efa4fe2c93f35a216", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling bencher v0.1.5
[INFO] [stderr]    Compiling monoid v0.0.5 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.74s
[INFO] running `Command { std: "docker" "inspect" "82009925f1355bb9ec238eba3120c8ed56caaa79ce174b8efa4fe2c93f35a216", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "82009925f1355bb9ec238eba3120c8ed56caaa79ce174b8efa4fe2c93f35a216", kill_on_drop: false }`
[INFO] [stdout] 82009925f1355bb9ec238eba3120c8ed56caaa79ce174b8efa4fe2c93f35a216
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-44/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-44/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] d61d855d036a1e4d058ef9e91a7ae2bdb03fd2dd84891683960313be956a5f73
[INFO] running `Command { std: "docker" "start" "-a" "d61d855d036a1e4d058ef9e91a7ae2bdb03fd2dd84891683960313be956a5f73", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling monoid v0.0.5 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.84s
[INFO] running `Command { std: "docker" "inspect" "d61d855d036a1e4d058ef9e91a7ae2bdb03fd2dd84891683960313be956a5f73", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d61d855d036a1e4d058ef9e91a7ae2bdb03fd2dd84891683960313be956a5f73", kill_on_drop: false }`
[INFO] [stdout] d61d855d036a1e4d058ef9e91a7ae2bdb03fd2dd84891683960313be956a5f73
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-44/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-44/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] 7167db309774606b45b5051b33fcaf8fd5a2627af334583aefebf864277a7383
[INFO] running `Command { std: "docker" "start" "-a" "7167db309774606b45b5051b33fcaf8fd5a2627af334583aefebf864277a7383", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.89s
[INFO] [stdout] running 6 tests
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/monoid-775d4679170db210)
[INFO] [stdout] test tests::both ... ok
[INFO] [stdout] test tests::cowstring_append ... ok
[INFO] [stdout] test tests::left ... ok
[INFO] [stdout] test tests::right ... ok
[INFO] [stdout] test tests::none ... ok
[INFO] [stdout] test tests::string_append ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests monoid
[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" "7167db309774606b45b5051b33fcaf8fd5a2627af334583aefebf864277a7383", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7167db309774606b45b5051b33fcaf8fd5a2627af334583aefebf864277a7383", kill_on_drop: false }`
[INFO] [stdout] 7167db309774606b45b5051b33fcaf8fd5a2627af334583aefebf864277a7383