[INFO] fetching crate flaky 0.1.0...
[INFO] testing flaky-0.1.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate flaky 0.1.0 into /workspace/builds/worker-97/source
[INFO] validating manifest of crates.io crate flaky 0.1.0 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 flaky 0.1.0
[INFO] finished tweaking crates.io crate flaky 0.1.0
[INFO] tweaked toml for crates.io crate flaky 0.1.0 written to /workspace/builds/worker-97/source/Cargo.toml
[INFO] crate crates.io crate flaky 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-97/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-97/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] e2f61647d58969337c53e2211d4a4301127e507ef0c106e2a068ceecc04e1073
[INFO] running `Command { std: "docker" "start" "-a" "e2f61647d58969337c53e2211d4a4301127e507ef0c106e2a068ceecc04e1073", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e2f61647d58969337c53e2211d4a4301127e507ef0c106e2a068ceecc04e1073", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e2f61647d58969337c53e2211d4a4301127e507ef0c106e2a068ceecc04e1073", kill_on_drop: false }`
[INFO] [stdout] e2f61647d58969337c53e2211d4a4301127e507ef0c106e2a068ceecc04e1073
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-97/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-97/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] 42d8f7b79cda0cc8ec153d1dc3ff87f8a3ee05c2a7e0f3875dc3097cfa5d1046
[INFO] running `Command { std: "docker" "start" "-a" "42d8f7b79cda0cc8ec153d1dc3ff87f8a3ee05c2a7e0f3875dc3097cfa5d1046", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling flaky v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.33s
[INFO] running `Command { std: "docker" "inspect" "42d8f7b79cda0cc8ec153d1dc3ff87f8a3ee05c2a7e0f3875dc3097cfa5d1046", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "42d8f7b79cda0cc8ec153d1dc3ff87f8a3ee05c2a7e0f3875dc3097cfa5d1046", kill_on_drop: false }`
[INFO] [stdout] 42d8f7b79cda0cc8ec153d1dc3ff87f8a3ee05c2a7e0f3875dc3097cfa5d1046
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-97/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-97/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] cb767ade1f880ee1d9a4b4c7b2ebe257b06ca63e39948a493a7c9aaf4075aa60
[INFO] running `Command { std: "docker" "start" "-a" "cb767ade1f880ee1d9a4b4c7b2ebe257b06ca63e39948a493a7c9aaf4075aa60", kill_on_drop: false }`
[INFO] [stderr]    Compiling flaky v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.68s
[INFO] running `Command { std: "docker" "inspect" "cb767ade1f880ee1d9a4b4c7b2ebe257b06ca63e39948a493a7c9aaf4075aa60", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cb767ade1f880ee1d9a4b4c7b2ebe257b06ca63e39948a493a7c9aaf4075aa60", kill_on_drop: false }`
[INFO] [stdout] cb767ade1f880ee1d9a4b4c7b2ebe257b06ca63e39948a493a7c9aaf4075aa60
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-97/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-97/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] 95fb99bb30dd707a6475a34edeae34e366bc370f5d1fe99fb66d235ebf05bf12
[INFO] running `Command { std: "docker" "start" "-a" "95fb99bb30dd707a6475a34edeae34e366bc370f5d1fe99fb66d235ebf05bf12", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.27s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/flaky-dc1543c3944eaf82)
[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" "95fb99bb30dd707a6475a34edeae34e366bc370f5d1fe99fb66d235ebf05bf12", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "95fb99bb30dd707a6475a34edeae34e366bc370f5d1fe99fb66d235ebf05bf12", kill_on_drop: false }`
[INFO] [stdout] 95fb99bb30dd707a6475a34edeae34e366bc370f5d1fe99fb66d235ebf05bf12