[INFO] fetching crate winter-utils 0.2.0...
[INFO] testing winter-utils-0.2.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate winter-utils 0.2.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate winter-utils 0.2.0 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 winter-utils 0.2.0
[INFO] finished tweaking crates.io crate winter-utils 0.2.0
[INFO] tweaked toml for crates.io crate winter-utils 0.2.0 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] 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] [stdout] 3638870a09afe396868b311182f209c9b6acf56888fed4c716ec4d3554356fae
[INFO] running `Command { std: "docker" "start" "-a" "3638870a09afe396868b311182f209c9b6acf56888fed4c716ec4d3554356fae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3638870a09afe396868b311182f209c9b6acf56888fed4c716ec4d3554356fae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3638870a09afe396868b311182f209c9b6acf56888fed4c716ec4d3554356fae", kill_on_drop: false }`
[INFO] [stdout] 3638870a09afe396868b311182f209c9b6acf56888fed4c716ec4d3554356fae
[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] [stdout] e78358f1cdf75f8f1490fd22e903f58465daffa06a083b43f9af4afba6382011
[INFO] running `Command { std: "docker" "start" "-a" "e78358f1cdf75f8f1490fd22e903f58465daffa06a083b43f9af4afba6382011", kill_on_drop: false }`
[INFO] [stderr]    Compiling winter-utils v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.51s
[INFO] running `Command { std: "docker" "inspect" "e78358f1cdf75f8f1490fd22e903f58465daffa06a083b43f9af4afba6382011", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e78358f1cdf75f8f1490fd22e903f58465daffa06a083b43f9af4afba6382011", kill_on_drop: false }`
[INFO] [stdout] e78358f1cdf75f8f1490fd22e903f58465daffa06a083b43f9af4afba6382011
[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] 75e50d3f79a0c19642384cdac4a48d78cd180d0343b544b72ad4220f2612ca9e
[INFO] running `Command { std: "docker" "start" "-a" "75e50d3f79a0c19642384cdac4a48d78cd180d0343b544b72ad4220f2612ca9e", kill_on_drop: false }`
[INFO] [stderr]    Compiling winter-utils v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.87s
[INFO] running `Command { std: "docker" "inspect" "75e50d3f79a0c19642384cdac4a48d78cd180d0343b544b72ad4220f2612ca9e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "75e50d3f79a0c19642384cdac4a48d78cd180d0343b544b72ad4220f2612ca9e", kill_on_drop: false }`
[INFO] [stdout] 75e50d3f79a0c19642384cdac4a48d78cd180d0343b544b72ad4220f2612ca9e
[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] [stdout] c675a428a4525333ffbd434b89f86eaf7fa55bb8c6cefd67a4b2c8210c5b19ca
[INFO] running `Command { std: "docker" "start" "-a" "c675a428a4525333ffbd434b89f86eaf7fa55bb8c6cefd67a4b2c8210c5b19ca", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stdout] running 9 tests
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/winter_utils-1247ba77eedf17af)
[INFO] [stdout] test tests::group_vector_elements ... ok
[INFO] [stderr]    Doc-tests winter-utils
[INFO] [stdout] test tests::read_u16 ... ok
[INFO] [stdout] test tests::read_u32 ... ok
[INFO] [stdout] test tests::read_u8 ... ok
[INFO] [stdout] test tests::write_serializable ... ok
[INFO] [stdout] test tests::write_serializable_array_batch ... ok
[INFO] [stdout] test tests::write_serializable_batch ... ok
[INFO] [stdout] test tests::read_u64 ... ok
[INFO] [stdout] test tests::read_u8_vec ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 9 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test src/lib.rs - group_vector_elements (line 453) ... ok
[INFO] [stdout] test src/lib.rs - flatten_vector_elements (line 523) ... ok
[INFO] [stdout] test src/lib.rs - flatten_slice_elements (line 506) ... ok
[INFO] [stdout] test src/lib.rs - transpose_slice (line 549) ... ok
[INFO] [stdout] test src/lib.rs - group_slice_elements (line 483) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.56s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "c675a428a4525333ffbd434b89f86eaf7fa55bb8c6cefd67a4b2c8210c5b19ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c675a428a4525333ffbd434b89f86eaf7fa55bb8c6cefd67a4b2c8210c5b19ca", kill_on_drop: false }`
[INFO] [stdout] c675a428a4525333ffbd434b89f86eaf7fa55bb8c6cefd67a4b2c8210c5b19ca