[INFO] fetching crate piet-test 0.0.12...
[INFO] testing piet-test-0.0.12 against 1.55.0 for beta-1.56-1
[INFO] extracting crate piet-test 0.0.12 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate piet-test 0.0.12 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 piet-test 0.0.12
[INFO] finished tweaking crates.io crate piet-test 0.0.12
[INFO] tweaked toml for crates.io crate piet-test 0.0.12 written to /workspace/builds/worker-2/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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded kurbo v0.5.11
[INFO] [stderr]   Downloaded piet v0.0.12
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] ac153613dbdb4255a2e576625bed3204f0e9840e0c93db3e075db7a85a790029
[INFO] running `Command { std: "docker" "start" "-a" "ac153613dbdb4255a2e576625bed3204f0e9840e0c93db3e075db7a85a790029", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ac153613dbdb4255a2e576625bed3204f0e9840e0c93db3e075db7a85a790029", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ac153613dbdb4255a2e576625bed3204f0e9840e0c93db3e075db7a85a790029", kill_on_drop: false }`
[INFO] [stdout] ac153613dbdb4255a2e576625bed3204f0e9840e0c93db3e075db7a85a790029
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 1a79c164e031cfb101a07ebf22339c00783822291e9cf3c011a4f506be8ac94f
[INFO] running `Command { std: "docker" "start" "-a" "1a79c164e031cfb101a07ebf22339c00783822291e9cf3c011a4f506be8ac94f", kill_on_drop: false }`
[INFO] [stderr]    Compiling kurbo v0.5.11
[INFO] [stderr]    Compiling piet v0.0.12
[INFO] [stderr]    Compiling piet-test v0.0.12 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.76s
[INFO] running `Command { std: "docker" "inspect" "1a79c164e031cfb101a07ebf22339c00783822291e9cf3c011a4f506be8ac94f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1a79c164e031cfb101a07ebf22339c00783822291e9cf3c011a4f506be8ac94f", kill_on_drop: false }`
[INFO] [stdout] 1a79c164e031cfb101a07ebf22339c00783822291e9cf3c011a4f506be8ac94f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] 4cbe9708d2c9a3e2a31db6ccf578b44c2a4e736a432f0eb435bb82d25c6de7b1
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "4cbe9708d2c9a3e2a31db6ccf578b44c2a4e736a432f0eb435bb82d25c6de7b1", kill_on_drop: false }`
[INFO] [stderr]    Compiling piet-test v0.0.12 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.19s
[INFO] running `Command { std: "docker" "inspect" "4cbe9708d2c9a3e2a31db6ccf578b44c2a4e736a432f0eb435bb82d25c6de7b1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4cbe9708d2c9a3e2a31db6ccf578b44c2a4e736a432f0eb435bb82d25c6de7b1", kill_on_drop: false }`
[INFO] [stdout] 4cbe9708d2c9a3e2a31db6ccf578b44c2a4e736a432f0eb435bb82d25c6de7b1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 93686b3351db2cee866849a80270b3379fcbfc7e01c358b8b72526d1cba43d1f
[INFO] running `Command { std: "docker" "start" "-a" "93686b3351db2cee866849a80270b3379fcbfc7e01c358b8b72526d1cba43d1f", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/piet_test-1ed1ca16dedb7e8c)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests piet-test
[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] [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" "93686b3351db2cee866849a80270b3379fcbfc7e01c358b8b72526d1cba43d1f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "93686b3351db2cee866849a80270b3379fcbfc7e01c358b8b72526d1cba43d1f", kill_on_drop: false }`
[INFO] [stdout] 93686b3351db2cee866849a80270b3379fcbfc7e01c358b8b72526d1cba43d1f