[INFO] fetching crate option 0.0.0...
[INFO] testing option-0.0.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate option 0.0.0 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate option 0.0.0 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 option 0.0.0
[INFO] finished tweaking crates.io crate option 0.0.0
[INFO] tweaked toml for crates.io crate option 0.0.0 written to /workspace/builds/worker-6/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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] 9a320adaf3721deb828cfd69eca36ddfa0e425537abe7464d8ac442e06f82112
[INFO] running `Command { std: "docker" "start" "-a" "9a320adaf3721deb828cfd69eca36ddfa0e425537abe7464d8ac442e06f82112", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9a320adaf3721deb828cfd69eca36ddfa0e425537abe7464d8ac442e06f82112", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9a320adaf3721deb828cfd69eca36ddfa0e425537abe7464d8ac442e06f82112", kill_on_drop: false }`
[INFO] [stdout] 9a320adaf3721deb828cfd69eca36ddfa0e425537abe7464d8ac442e06f82112
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] 119830623d7e1e1bd57fb6293f598a86b11534c08e6889da728465c9a3e6dc97
[INFO] running `Command { std: "docker" "start" "-a" "119830623d7e1e1bd57fb6293f598a86b11534c08e6889da728465c9a3e6dc97", kill_on_drop: false }`
[INFO] [stderr]    Compiling option v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.74s
[INFO] running `Command { std: "docker" "inspect" "119830623d7e1e1bd57fb6293f598a86b11534c08e6889da728465c9a3e6dc97", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "119830623d7e1e1bd57fb6293f598a86b11534c08e6889da728465c9a3e6dc97", kill_on_drop: false }`
[INFO] [stdout] 119830623d7e1e1bd57fb6293f598a86b11534c08e6889da728465c9a3e6dc97
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] 94b1fa7644560505a5a304469bc7ba76ef49e877a37145ef4f2afe36f85e72d6
[INFO] running `Command { std: "docker" "start" "-a" "94b1fa7644560505a5a304469bc7ba76ef49e877a37145ef4f2afe36f85e72d6", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling option v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.97s
[INFO] running `Command { std: "docker" "inspect" "94b1fa7644560505a5a304469bc7ba76ef49e877a37145ef4f2afe36f85e72d6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "94b1fa7644560505a5a304469bc7ba76ef49e877a37145ef4f2afe36f85e72d6", kill_on_drop: false }`
[INFO] [stdout] 94b1fa7644560505a5a304469bc7ba76ef49e877a37145ef4f2afe36f85e72d6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] a03129ae9422003ec2b325dd3cda4c94387b6caf5bc8c926039c737c487e8f4f
[INFO] running `Command { std: "docker" "start" "-a" "a03129ae9422003ec2b325dd3cda4c94387b6caf5bc8c926039c737c487e8f4f", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/option-eef4e1800bf4cf34)
[INFO] [stdout] running 1 test
[INFO] [stderr]    Doc-tests option
[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] [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" "a03129ae9422003ec2b325dd3cda4c94387b6caf5bc8c926039c737c487e8f4f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a03129ae9422003ec2b325dd3cda4c94387b6caf5bc8c926039c737c487e8f4f", kill_on_drop: false }`
[INFO] [stdout] a03129ae9422003ec2b325dd3cda4c94387b6caf5bc8c926039c737c487e8f4f