[INFO] fetching crate powder 0.0.1...
[INFO] testing powder-0.0.1 against 1.55.0 for beta-1.56-1
[INFO] extracting crate powder 0.0.1 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate powder 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 powder 0.0.1
[INFO] finished tweaking crates.io crate powder 0.0.1
[INFO] tweaked toml for crates.io crate powder 0.0.1 written to /workspace/builds/worker-3/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-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] 841e62ff06c5dab350c847ad3736e83e1b76d96e26b44a4cc8831bf4f4aa0deb
[INFO] running `Command { std: "docker" "start" "-a" "841e62ff06c5dab350c847ad3736e83e1b76d96e26b44a4cc8831bf4f4aa0deb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "841e62ff06c5dab350c847ad3736e83e1b76d96e26b44a4cc8831bf4f4aa0deb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "841e62ff06c5dab350c847ad3736e83e1b76d96e26b44a4cc8831bf4f4aa0deb", kill_on_drop: false }`
[INFO] [stdout] 841e62ff06c5dab350c847ad3736e83e1b76d96e26b44a4cc8831bf4f4aa0deb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] 135b7120e65698a2627d78e48502ca6ba84c1427b76664d64048f29de9a156bb
[INFO] running `Command { std: "docker" "start" "-a" "135b7120e65698a2627d78e48502ca6ba84c1427b76664d64048f29de9a156bb", kill_on_drop: false }`
[INFO] [stderr]    Compiling powder v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.17s
[INFO] running `Command { std: "docker" "inspect" "135b7120e65698a2627d78e48502ca6ba84c1427b76664d64048f29de9a156bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "135b7120e65698a2627d78e48502ca6ba84c1427b76664d64048f29de9a156bb", kill_on_drop: false }`
[INFO] [stdout] 135b7120e65698a2627d78e48502ca6ba84c1427b76664d64048f29de9a156bb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] 3850b7ee97016f82e12af06dd6adf4c188161724ec8ad0bce43e352e5b7306cd
[INFO] running `Command { std: "docker" "start" "-a" "3850b7ee97016f82e12af06dd6adf4c188161724ec8ad0bce43e352e5b7306cd", kill_on_drop: false }`
[INFO] [stderr]    Compiling powder v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.41s
[INFO] running `Command { std: "docker" "inspect" "3850b7ee97016f82e12af06dd6adf4c188161724ec8ad0bce43e352e5b7306cd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3850b7ee97016f82e12af06dd6adf4c188161724ec8ad0bce43e352e5b7306cd", kill_on_drop: false }`
[INFO] [stdout] 3850b7ee97016f82e12af06dd6adf4c188161724ec8ad0bce43e352e5b7306cd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] f2a9c8414fd03960ba85dfaf42126e977a040d70396ae4b50feae4580215e15a
[INFO] running `Command { std: "docker" "start" "-a" "f2a9c8414fd03960ba85dfaf42126e977a040d70396ae4b50feae4580215e15a", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/powder-70335216178c68e7)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[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] [stderr]    Doc-tests powder
[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" "f2a9c8414fd03960ba85dfaf42126e977a040d70396ae4b50feae4580215e15a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f2a9c8414fd03960ba85dfaf42126e977a040d70396ae4b50feae4580215e15a", kill_on_drop: false }`
[INFO] [stdout] f2a9c8414fd03960ba85dfaf42126e977a040d70396ae4b50feae4580215e15a