[INFO] fetching crate monoid 0.0.5...
[INFO] testing monoid-0.0.5 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate monoid 0.0.5 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate monoid 0.0.5 on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "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-12/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "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" "+beta-2021-09-08" "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-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e51a65fdae2a412f867c36fca08b2f439b45549c64e94496efe1c9fe6036edcd
[INFO] running `Command { std: "docker" "start" "-a" "e51a65fdae2a412f867c36fca08b2f439b45549c64e94496efe1c9fe6036edcd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e51a65fdae2a412f867c36fca08b2f439b45549c64e94496efe1c9fe6036edcd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e51a65fdae2a412f867c36fca08b2f439b45549c64e94496efe1c9fe6036edcd", kill_on_drop: false }`
[INFO] [stdout] e51a65fdae2a412f867c36fca08b2f439b45549c64e94496efe1c9fe6036edcd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 721c33b3586ee4a72eb69ef24bacf3dedbecdc77461ebb4477413bf27fe8a99d
[INFO] running `Command { std: "docker" "start" "-a" "721c33b3586ee4a72eb69ef24bacf3dedbecdc77461ebb4477413bf27fe8a99d", 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 1.85s
[INFO] running `Command { std: "docker" "inspect" "721c33b3586ee4a72eb69ef24bacf3dedbecdc77461ebb4477413bf27fe8a99d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "721c33b3586ee4a72eb69ef24bacf3dedbecdc77461ebb4477413bf27fe8a99d", kill_on_drop: false }`
[INFO] [stdout] 721c33b3586ee4a72eb69ef24bacf3dedbecdc77461ebb4477413bf27fe8a99d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 59a2fc1b388bdcd159468430ad2b37c070b06e9328ba25243a394eaa604e75c1
[INFO] running `Command { std: "docker" "start" "-a" "59a2fc1b388bdcd159468430ad2b37c070b06e9328ba25243a394eaa604e75c1", kill_on_drop: false }`
[INFO] [stderr]    Compiling monoid v0.0.5 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.66s
[INFO] running `Command { std: "docker" "inspect" "59a2fc1b388bdcd159468430ad2b37c070b06e9328ba25243a394eaa604e75c1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "59a2fc1b388bdcd159468430ad2b37c070b06e9328ba25243a394eaa604e75c1", kill_on_drop: false }`
[INFO] [stdout] 59a2fc1b388bdcd159468430ad2b37c070b06e9328ba25243a394eaa604e75c1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "+beta-2021-09-08" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] b42ba416da32c055900d6f53220e019f351a15c250664f0b1ec02a3076213333
[INFO] running `Command { std: "docker" "start" "-a" "b42ba416da32c055900d6f53220e019f351a15c250664f0b1ec02a3076213333", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.68s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/monoid-d7f1a73f5d3d28ca)
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test tests::cowstring_append ... ok
[INFO] [stdout] test tests::both ... ok
[INFO] [stdout] test tests::left ... ok
[INFO] [stdout] test tests::none ... ok
[INFO] [stdout] test tests::right ... 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" "b42ba416da32c055900d6f53220e019f351a15c250664f0b1ec02a3076213333", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b42ba416da32c055900d6f53220e019f351a15c250664f0b1ec02a3076213333", kill_on_drop: false }`
[INFO] [stdout] b42ba416da32c055900d6f53220e019f351a15c250664f0b1ec02a3076213333