[INFO] fetching crate screw 0.1.0...
[INFO] testing screw-0.1.0 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate screw 0.1.0 into /workspace/builds/worker-47/source
[INFO] validating manifest of crates.io crate screw 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 screw 0.1.0
[INFO] finished tweaking crates.io crate screw 0.1.0
[INFO] tweaked toml for crates.io crate screw 0.1.0 written to /workspace/builds/worker-47/source/Cargo.toml
[INFO] crate crates.io crate screw 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-47/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-47/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] c2c713ca570ce99bc0cf3ef051e8bbfac1170fcc1d36b48592ab0c87c42b331c
[INFO] running `Command { std: "docker" "start" "-a" "c2c713ca570ce99bc0cf3ef051e8bbfac1170fcc1d36b48592ab0c87c42b331c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c2c713ca570ce99bc0cf3ef051e8bbfac1170fcc1d36b48592ab0c87c42b331c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c2c713ca570ce99bc0cf3ef051e8bbfac1170fcc1d36b48592ab0c87c42b331c", kill_on_drop: false }`
[INFO] [stdout] c2c713ca570ce99bc0cf3ef051e8bbfac1170fcc1d36b48592ab0c87c42b331c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-47/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-47/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] 174ae31afc56bc3366932fdfc6796b8c7b0e7d506acd124fa9540ca76a91869b
[INFO] running `Command { std: "docker" "start" "-a" "174ae31afc56bc3366932fdfc6796b8c7b0e7d506acd124fa9540ca76a91869b", kill_on_drop: false }`
[INFO] [stderr]    Compiling screw v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.71s
[INFO] running `Command { std: "docker" "inspect" "174ae31afc56bc3366932fdfc6796b8c7b0e7d506acd124fa9540ca76a91869b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "174ae31afc56bc3366932fdfc6796b8c7b0e7d506acd124fa9540ca76a91869b", kill_on_drop: false }`
[INFO] [stdout] 174ae31afc56bc3366932fdfc6796b8c7b0e7d506acd124fa9540ca76a91869b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-47/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-47/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] 15992108d7c468328275e49084d00eb3a5f0ec390e32c32870c0f0524ebd9658
[INFO] running `Command { std: "docker" "start" "-a" "15992108d7c468328275e49084d00eb3a5f0ec390e32c32870c0f0524ebd9658", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling screw v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.86s
[INFO] running `Command { std: "docker" "inspect" "15992108d7c468328275e49084d00eb3a5f0ec390e32c32870c0f0524ebd9658", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "15992108d7c468328275e49084d00eb3a5f0ec390e32c32870c0f0524ebd9658", kill_on_drop: false }`
[INFO] [stdout] 15992108d7c468328275e49084d00eb3a5f0ec390e32c32870c0f0524ebd9658
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-47/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-47/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] a6ece543189ecf214271d6cec74b2a6ae5c468638b0d3f785d87f8739bb6dd00
[INFO] running `Command { std: "docker" "start" "-a" "a6ece543189ecf214271d6cec74b2a6ae5c468638b0d3f785d87f8739bb6dd00", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/screw-ec7be80d49798b92)
[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" "a6ece543189ecf214271d6cec74b2a6ae5c468638b0d3f785d87f8739bb6dd00", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a6ece543189ecf214271d6cec74b2a6ae5c468638b0d3f785d87f8739bb6dd00", kill_on_drop: false }`
[INFO] [stdout] a6ece543189ecf214271d6cec74b2a6ae5c468638b0d3f785d87f8739bb6dd00