[INFO] fetching crate contour 0.4.0...
[INFO] testing contour-0.4.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate contour 0.4.0 into /workspace/builds/worker-14/source
[INFO] validating manifest of crates.io crate contour 0.4.0 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 contour 0.4.0
[INFO] finished tweaking crates.io crate contour 0.4.0
[INFO] tweaked toml for crates.io crate contour 0.4.0 written to /workspace/builds/worker-14/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-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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] 0b37e4552dcdee652081802a666cef6dfe47a4594b93eefa5985d265cb52c411
[INFO] running `Command { std: "docker" "start" "-a" "0b37e4552dcdee652081802a666cef6dfe47a4594b93eefa5985d265cb52c411", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0b37e4552dcdee652081802a666cef6dfe47a4594b93eefa5985d265cb52c411", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0b37e4552dcdee652081802a666cef6dfe47a4594b93eefa5985d265cb52c411", kill_on_drop: false }`
[INFO] [stdout] 0b37e4552dcdee652081802a666cef6dfe47a4594b93eefa5985d265cb52c411
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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] f14c9633ac34a75f0fee9ec63983017f4dbbc9681a44d4e02196f6c26d25a304
[INFO] running `Command { std: "docker" "start" "-a" "f14c9633ac34a75f0fee9ec63983017f4dbbc9681a44d4e02196f6c26d25a304", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.29
[INFO] [stderr]    Compiling syn v1.0.76
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]    Compiling serde_json v1.0.67
[INFO] [stderr]    Compiling itoa v0.4.8
[INFO] [stderr]    Compiling slab v0.4.4
[INFO] [stderr]    Compiling rustc-hash v1.1.0
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling thiserror-impl v1.0.29
[INFO] [stderr]    Compiling thiserror v1.0.29
[INFO] [stderr]    Compiling geojson v0.22.2
[INFO] [stderr]    Compiling contour v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 17.44s
[INFO] running `Command { std: "docker" "inspect" "f14c9633ac34a75f0fee9ec63983017f4dbbc9681a44d4e02196f6c26d25a304", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f14c9633ac34a75f0fee9ec63983017f4dbbc9681a44d4e02196f6c26d25a304", kill_on_drop: false }`
[INFO] [stdout] f14c9633ac34a75f0fee9ec63983017f4dbbc9681a44d4e02196f6c26d25a304
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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] 3c126d863cc2c6eb6b186303393f02df473b67184a863ce3f34e57a6260e99e8
[INFO] running `Command { std: "docker" "start" "-a" "3c126d863cc2c6eb6b186303393f02df473b67184a863ce3f34e57a6260e99e8", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling contour v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.82s
[INFO] running `Command { std: "docker" "inspect" "3c126d863cc2c6eb6b186303393f02df473b67184a863ce3f34e57a6260e99e8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3c126d863cc2c6eb6b186303393f02df473b67184a863ce3f34e57a6260e99e8", kill_on_drop: false }`
[INFO] [stdout] 3c126d863cc2c6eb6b186303393f02df473b67184a863ce3f34e57a6260e99e8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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] c8f4613b427670ca166b9b881a82fc13067190dcf56a2a7420f9f3c8878f637e
[INFO] running `Command { std: "docker" "start" "-a" "c8f4613b427670ca166b9b881a82fc13067190dcf56a2a7420f9f3c8878f637e", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stdout] running 7 tests
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/contour-68f15ea46f4c8936)
[INFO] [stdout] test tests::test_empty_polygons ... ok
[INFO] [stdout] test tests::test_multipolygon ... ok
[INFO] [stdout] test tests::test_multipolygon_with_hole ... ok
[INFO] [stdout] test tests::test_simple_polygon ... ok
[INFO] [stdout] test tests::test_multiple_thresholds ... ok
[INFO] [stderr]    Doc-tests contour
[INFO] [stdout] test tests::test_simple_polygon_no_smoothing ... ok
[INFO] [stdout] test tests::test_polygon_with_hole ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 7 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - (line 11) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.48s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "c8f4613b427670ca166b9b881a82fc13067190dcf56a2a7420f9f3c8878f637e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c8f4613b427670ca166b9b881a82fc13067190dcf56a2a7420f9f3c8878f637e", kill_on_drop: false }`
[INFO] [stdout] c8f4613b427670ca166b9b881a82fc13067190dcf56a2a7420f9f3c8878f637e