[INFO] fetching crate dentist 0.1.0...
[INFO] testing dentist-0.1.0 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate dentist 0.1.0 into /workspace/builds/worker-117/source
[INFO] validating manifest of crates.io crate dentist 0.1.0 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 dentist 0.1.0
[INFO] finished tweaking crates.io crate dentist 0.1.0
[INFO] tweaked toml for crates.io crate dentist 0.1.0 written to /workspace/builds/worker-117/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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-117/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-117/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] f6f852022ec7e9a3cc298e63b8fab14307237816de00f74bba3ccdd74d874db1
[INFO] running `Command { std: "docker" "start" "-a" "f6f852022ec7e9a3cc298e63b8fab14307237816de00f74bba3ccdd74d874db1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f6f852022ec7e9a3cc298e63b8fab14307237816de00f74bba3ccdd74d874db1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f6f852022ec7e9a3cc298e63b8fab14307237816de00f74bba3ccdd74d874db1", kill_on_drop: false }`
[INFO] [stdout] f6f852022ec7e9a3cc298e63b8fab14307237816de00f74bba3ccdd74d874db1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-117/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-117/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] 2a5a88ac08e3028b6b665950eafb5c871e81dbc11d9413661d1a95c340c4b84c
[INFO] running `Command { std: "docker" "start" "-a" "2a5a88ac08e3028b6b665950eafb5c871e81dbc11d9413661d1a95c340c4b84c", kill_on_drop: false }`
[INFO] [stderr]    Compiling dentist v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.15s
[INFO] running `Command { std: "docker" "inspect" "2a5a88ac08e3028b6b665950eafb5c871e81dbc11d9413661d1a95c340c4b84c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2a5a88ac08e3028b6b665950eafb5c871e81dbc11d9413661d1a95c340c4b84c", kill_on_drop: false }`
[INFO] [stdout] 2a5a88ac08e3028b6b665950eafb5c871e81dbc11d9413661d1a95c340c4b84c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-117/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-117/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] 324b18679a9988ec4cab22a9d848abce12ead14f55fe5d6d525b4ee83574cc39
[INFO] running `Command { std: "docker" "start" "-a" "324b18679a9988ec4cab22a9d848abce12ead14f55fe5d6d525b4ee83574cc39", kill_on_drop: false }`
[INFO] [stderr]    Compiling dentist v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.42s
[INFO] running `Command { std: "docker" "inspect" "324b18679a9988ec4cab22a9d848abce12ead14f55fe5d6d525b4ee83574cc39", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "324b18679a9988ec4cab22a9d848abce12ead14f55fe5d6d525b4ee83574cc39", kill_on_drop: false }`
[INFO] [stdout] 324b18679a9988ec4cab22a9d848abce12ead14f55fe5d6d525b4ee83574cc39
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-117/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-117/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] 1b0cbf3592fcaf48e0d47b31e26b19f3cbda4ebe976e0517897ada6377d31dec
[INFO] running `Command { std: "docker" "start" "-a" "1b0cbf3592fcaf48e0d47b31e26b19f3cbda4ebe976e0517897ada6377d31dec", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/dentist-8d3088d5696d5c4c)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test tests::it_works ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests dentist
[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" "1b0cbf3592fcaf48e0d47b31e26b19f3cbda4ebe976e0517897ada6377d31dec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1b0cbf3592fcaf48e0d47b31e26b19f3cbda4ebe976e0517897ada6377d31dec", kill_on_drop: false }`
[INFO] [stdout] 1b0cbf3592fcaf48e0d47b31e26b19f3cbda4ebe976e0517897ada6377d31dec