[INFO] fetching crate devboat-docker 0.1.0...
[INFO] testing devboat-docker-0.1.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate devboat-docker 0.1.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate devboat-docker 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 devboat-docker 0.1.0
[INFO] finished tweaking crates.io crate devboat-docker 0.1.0
[INFO] tweaked toml for crates.io crate devboat-docker 0.1.0 written to /workspace/builds/worker-4/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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded unix_socket v0.4.6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] 01d8e40ae42562634b1f4992be50dbed7724f50d79d6aa248882b852153c94cc
[INFO] running `Command { std: "docker" "start" "-a" "01d8e40ae42562634b1f4992be50dbed7724f50d79d6aa248882b852153c94cc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "01d8e40ae42562634b1f4992be50dbed7724f50d79d6aa248882b852153c94cc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "01d8e40ae42562634b1f4992be50dbed7724f50d79d6aa248882b852153c94cc", kill_on_drop: false }`
[INFO] [stdout] 01d8e40ae42562634b1f4992be50dbed7724f50d79d6aa248882b852153c94cc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] 0f92ffa4d0a513906360fc5f5deff9cf7bae317474699a26aa2ad27b55b4cd62
[INFO] running `Command { std: "docker" "start" "-a" "0f92ffa4d0a513906360fc5f5deff9cf7bae317474699a26aa2ad27b55b4cd62", kill_on_drop: false }`
[INFO] [stderr]    Compiling debug-builders v0.1.0
[INFO] [stderr]    Compiling libc v0.1.12
[INFO] [stderr]    Compiling unix_socket v0.4.6
[INFO] [stderr]    Compiling devboat-docker v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.24s
[INFO] running `Command { std: "docker" "inspect" "0f92ffa4d0a513906360fc5f5deff9cf7bae317474699a26aa2ad27b55b4cd62", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0f92ffa4d0a513906360fc5f5deff9cf7bae317474699a26aa2ad27b55b4cd62", kill_on_drop: false }`
[INFO] [stdout] 0f92ffa4d0a513906360fc5f5deff9cf7bae317474699a26aa2ad27b55b4cd62
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] 7e53523b2a192b4229f8cfae6d0c6f2e93a670928b0139fdba03a0dc947ef802
[INFO] running `Command { std: "docker" "start" "-a" "7e53523b2a192b4229f8cfae6d0c6f2e93a670928b0139fdba03a0dc947ef802", kill_on_drop: false }`
[INFO] [stderr]    Compiling devboat-docker v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.55s
[INFO] running `Command { std: "docker" "inspect" "7e53523b2a192b4229f8cfae6d0c6f2e93a670928b0139fdba03a0dc947ef802", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7e53523b2a192b4229f8cfae6d0c6f2e93a670928b0139fdba03a0dc947ef802", kill_on_drop: false }`
[INFO] [stdout] 7e53523b2a192b4229f8cfae6d0c6f2e93a670928b0139fdba03a0dc947ef802
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] bf529a14f6f03b5bfe3964ed500c33db0fc2075297dd5aa954293890a60384de
[INFO] running `Command { std: "docker" "start" "-a" "bf529a14f6f03b5bfe3964ed500c33db0fc2075297dd5aa954293890a60384de", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/devboat_docker-4fb7f68d27f7fcee)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test 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 devboat-docker
[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" "bf529a14f6f03b5bfe3964ed500c33db0fc2075297dd5aa954293890a60384de", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bf529a14f6f03b5bfe3964ed500c33db0fc2075297dd5aa954293890a60384de", kill_on_drop: false }`
[INFO] [stdout] bf529a14f6f03b5bfe3964ed500c33db0fc2075297dd5aa954293890a60384de