[INFO] fetching crate recommender 0.0.1...
[INFO] testing recommender-0.0.1 against 1.55.0 for beta-1.56-1
[INFO] extracting crate recommender 0.0.1 into /workspace/builds/worker-29/source
[INFO] validating manifest of crates.io crate recommender 0.0.1 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 recommender 0.0.1
[INFO] finished tweaking crates.io crate recommender 0.0.1
[INFO] tweaked toml for crates.io crate recommender 0.0.1 written to /workspace/builds/worker-29/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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/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] e160c8771f4de477ca95eda227e2d70424009bf916451c9e4990d83c1c0107fc
[INFO] running `Command { std: "docker" "start" "-a" "e160c8771f4de477ca95eda227e2d70424009bf916451c9e4990d83c1c0107fc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e160c8771f4de477ca95eda227e2d70424009bf916451c9e4990d83c1c0107fc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e160c8771f4de477ca95eda227e2d70424009bf916451c9e4990d83c1c0107fc", kill_on_drop: false }`
[INFO] [stdout] e160c8771f4de477ca95eda227e2d70424009bf916451c9e4990d83c1c0107fc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/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] bb4ed5e82904ca3f5eb22df0de3d4e24ff31d4ec8c85b5111fa7009da4784839
[INFO] running `Command { std: "docker" "start" "-a" "bb4ed5e82904ca3f5eb22df0de3d4e24ff31d4ec8c85b5111fa7009da4784839", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling recommender v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.19s
[INFO] running `Command { std: "docker" "inspect" "bb4ed5e82904ca3f5eb22df0de3d4e24ff31d4ec8c85b5111fa7009da4784839", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bb4ed5e82904ca3f5eb22df0de3d4e24ff31d4ec8c85b5111fa7009da4784839", kill_on_drop: false }`
[INFO] [stdout] bb4ed5e82904ca3f5eb22df0de3d4e24ff31d4ec8c85b5111fa7009da4784839
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/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] 75465956d5bfe60e5e49b3bb67bad47f1d081b5cc86f81cdfd17e4744d88de70
[INFO] running `Command { std: "docker" "start" "-a" "75465956d5bfe60e5e49b3bb67bad47f1d081b5cc86f81cdfd17e4744d88de70", kill_on_drop: false }`
[INFO] [stderr]    Compiling recommender v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.34s
[INFO] running `Command { std: "docker" "inspect" "75465956d5bfe60e5e49b3bb67bad47f1d081b5cc86f81cdfd17e4744d88de70", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "75465956d5bfe60e5e49b3bb67bad47f1d081b5cc86f81cdfd17e4744d88de70", kill_on_drop: false }`
[INFO] [stdout] 75465956d5bfe60e5e49b3bb67bad47f1d081b5cc86f81cdfd17e4744d88de70
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/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] 0130e00beda277181f1f5fdeea1c07c5365bab0681c391ac3b64f06d7ef4ea86
[INFO] running `Command { std: "docker" "start" "-a" "0130e00beda277181f1f5fdeea1c07c5365bab0681c391ac3b64f06d7ef4ea86", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.81s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/recommender-78945e0c087204bd)
[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] [stderr]    Doc-tests recommender
[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" "0130e00beda277181f1f5fdeea1c07c5365bab0681c391ac3b64f06d7ef4ea86", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0130e00beda277181f1f5fdeea1c07c5365bab0681c391ac3b64f06d7ef4ea86", kill_on_drop: false }`
[INFO] [stdout] 0130e00beda277181f1f5fdeea1c07c5365bab0681c391ac3b64f06d7ef4ea86