[INFO] fetching crate ito-canvas 0.1.1...
[INFO] testing ito-canvas-0.1.1 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate ito-canvas 0.1.1 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate ito-canvas 0.1.1 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 ito-canvas 0.1.1
[INFO] finished tweaking crates.io crate ito-canvas 0.1.1
[INFO] tweaked toml for crates.io crate ito-canvas 0.1.1 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate ito-canvas 0.1.1 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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded dot-canvas v0.1.1
[INFO] [stderr]   Downloaded unicode-canvas v0.1.0
[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" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4ecd9626af14fa29a2fb89c6802d019084267d4f60e90240bca10839ed4110ab
[INFO] running `Command { std: "docker" "start" "-a" "4ecd9626af14fa29a2fb89c6802d019084267d4f60e90240bca10839ed4110ab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4ecd9626af14fa29a2fb89c6802d019084267d4f60e90240bca10839ed4110ab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4ecd9626af14fa29a2fb89c6802d019084267d4f60e90240bca10839ed4110ab", kill_on_drop: false }`
[INFO] [stdout] 4ecd9626af14fa29a2fb89c6802d019084267d4f60e90240bca10839ed4110ab
[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" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] df17776b08d4e6773297e11a8c92f388f5b7b3f45522ecd907fad0d2c26e103d
[INFO] running `Command { std: "docker" "start" "-a" "df17776b08d4e6773297e11a8c92f388f5b7b3f45522ecd907fad0d2c26e103d", kill_on_drop: false }`
[INFO] [stderr]    Compiling dot-canvas v0.1.1
[INFO] [stderr]    Compiling unicode-canvas v0.1.0
[INFO] [stderr]    Compiling ito-canvas v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.91s
[INFO] running `Command { std: "docker" "inspect" "df17776b08d4e6773297e11a8c92f388f5b7b3f45522ecd907fad0d2c26e103d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "df17776b08d4e6773297e11a8c92f388f5b7b3f45522ecd907fad0d2c26e103d", kill_on_drop: false }`
[INFO] [stdout] df17776b08d4e6773297e11a8c92f388f5b7b3f45522ecd907fad0d2c26e103d
[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" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7c522214a65ccd2d8a79a75842ce875ea7d5946263c111b0448e62c5bb3e17da
[INFO] running `Command { std: "docker" "start" "-a" "7c522214a65ccd2d8a79a75842ce875ea7d5946263c111b0448e62c5bb3e17da", kill_on_drop: false }`
[INFO] [stderr]    Compiling ito-canvas v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.54s
[INFO] running `Command { std: "docker" "inspect" "7c522214a65ccd2d8a79a75842ce875ea7d5946263c111b0448e62c5bb3e17da", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7c522214a65ccd2d8a79a75842ce875ea7d5946263c111b0448e62c5bb3e17da", kill_on_drop: false }`
[INFO] [stdout] 7c522214a65ccd2d8a79a75842ce875ea7d5946263c111b0448e62c5bb3e17da
[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" "+beta-2021-09-08" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] f8150be26d306f5681c59f0f670557e15b70ddadef621d5c36c86ec56ff4a292
[INFO] running `Command { std: "docker" "start" "-a" "f8150be26d306f5681c59f0f670557e15b70ddadef621d5c36c86ec56ff4a292", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.13s
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/ito_canvas-fe333c5611509c73)
[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] [stderr]    Doc-tests ito-canvas
[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" "f8150be26d306f5681c59f0f670557e15b70ddadef621d5c36c86ec56ff4a292", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f8150be26d306f5681c59f0f670557e15b70ddadef621d5c36c86ec56ff4a292", kill_on_drop: false }`
[INFO] [stdout] f8150be26d306f5681c59f0f670557e15b70ddadef621d5c36c86ec56ff4a292