[INFO] fetching crate munkres 0.5.2...
[INFO] testing munkres-0.5.2 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate munkres 0.5.2 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate munkres 0.5.2 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 munkres 0.5.2
[INFO] finished tweaking crates.io crate munkres 0.5.2
[INFO] tweaked toml for crates.io crate munkres 0.5.2 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8b0a55e3665c2e7c1786269266db19dbbfe1a7224bf3aa41f3facf33a596102d
[INFO] running `Command { std: "docker" "start" "-a" "8b0a55e3665c2e7c1786269266db19dbbfe1a7224bf3aa41f3facf33a596102d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8b0a55e3665c2e7c1786269266db19dbbfe1a7224bf3aa41f3facf33a596102d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8b0a55e3665c2e7c1786269266db19dbbfe1a7224bf3aa41f3facf33a596102d", kill_on_drop: false }`
[INFO] [stdout] 8b0a55e3665c2e7c1786269266db19dbbfe1a7224bf3aa41f3facf33a596102d
[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" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 05cd249dbbc07bb25843820f3de9f5b8836730b338ef1cef14f74cc8edb93887
[INFO] running `Command { std: "docker" "start" "-a" "05cd249dbbc07bb25843820f3de9f5b8836730b338ef1cef14f74cc8edb93887", kill_on_drop: false }`
[INFO] [stderr]    Compiling ndarray v0.14.0
[INFO] [stderr]    Compiling rawpointer v0.2.1
[INFO] [stderr]    Compiling fixedbitset v0.3.2
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-complex v0.3.1
[INFO] [stderr]    Compiling matrixmultiply v0.2.4
[INFO] [stderr]    Compiling munkres v0.5.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.16s
[INFO] running `Command { std: "docker" "inspect" "05cd249dbbc07bb25843820f3de9f5b8836730b338ef1cef14f74cc8edb93887", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "05cd249dbbc07bb25843820f3de9f5b8836730b338ef1cef14f74cc8edb93887", kill_on_drop: false }`
[INFO] [stdout] 05cd249dbbc07bb25843820f3de9f5b8836730b338ef1cef14f74cc8edb93887
[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" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e71e4d6ff52b11178a529cefbddfe1560f8bad24474d66648fd5d217f5adbcc2
[INFO] running `Command { std: "docker" "start" "-a" "e71e4d6ff52b11178a529cefbddfe1560f8bad24474d66648fd5d217f5adbcc2", kill_on_drop: false }`
[INFO] [stderr]    Compiling semver v1.0.4
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling syn v1.0.76
[INFO] [stderr]    Compiling regex-automata v0.1.10
[INFO] [stderr]    Compiling plotters-backend v0.3.2
[INFO] [stderr]    Compiling half v1.7.1
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]    Compiling same-file v1.0.6
[INFO] [stderr]    Compiling oorandom v11.1.3
[INFO] [stderr]    Compiling itertools v0.10.1
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling serde_json v1.0.67
[INFO] [stderr]    Compiling walkdir v2.3.2
[INFO] [stderr]    Compiling serde_cbor v0.11.2
[INFO] [stderr]    Compiling plotters-svg v0.3.1
[INFO] [stderr]    Compiling plotters v0.3.1
[INFO] [stderr]    Compiling bstr v0.2.16
[INFO] [stderr]    Compiling csv-core v0.1.10
[INFO] [stderr]    Compiling tinytemplate v1.2.1
[INFO] [stderr]    Compiling csv v1.1.6
[INFO] [stderr]    Compiling rustc_version v0.4.0
[INFO] [stderr]    Compiling regex v1.5.4
[INFO] [stderr]    Compiling cast v0.2.7
[INFO] [stderr]    Compiling criterion-plot v0.4.4
[INFO] [stderr]    Compiling serde_derive v1.0.130
[INFO] [stderr]    Compiling criterion v0.3.5
[INFO] [stderr]    Compiling munkres v0.5.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 30.31s
[INFO] running `Command { std: "docker" "inspect" "e71e4d6ff52b11178a529cefbddfe1560f8bad24474d66648fd5d217f5adbcc2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e71e4d6ff52b11178a529cefbddfe1560f8bad24474d66648fd5d217f5adbcc2", kill_on_drop: false }`
[INFO] [stdout] e71e4d6ff52b11178a529cefbddfe1560f8bad24474d66648fd5d217f5adbcc2
[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" "+beta-2021-09-08" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 12f672bd443349535f92a94a8565cccdcac391c8c47e49e80a132686099a3524
[INFO] running `Command { std: "docker" "start" "-a" "12f672bd443349535f92a94a8565cccdcac391c8c47e49e80a132686099a3524", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/munkres-ce3aa54b6c37ce21)
[INFO] [stdout] 
[INFO] [stdout] running 20 tests
[INFO] [stdout] test test_invalid ... ok
[INFO] [stdout] test test_solve ... ok
[INFO] [stdout] test test_should_be_unsolvable_if_first_cell_of_each_row_is_invalid ... ok
[INFO] [stdout] test test_invalid2 ... ok
[INFO] [stdout] test test_solve_equal_rows2 ... ok
[INFO] [stdout] test test_solve_equal_rows5 ... ok
[INFO] [stdout] test test_solve_equal_rows_stepwise ... ok
[INFO] [stdout] test test_solve_equal_rows5_float ... ok
[INFO] [stdout] test test_solve_equal_rows5_float2 ... ok
[INFO] [stdout] test test_step1 ... ok
[INFO] [stdout] test test_step2 ... ok
[INFO] [stdout] test test_step3 ... ok
[INFO] [stdout] test test_step4_case1 ... ok
[INFO] [stdout] test test_step4_case2 ... ok
[INFO] [stdout] test test_solve_random10 ... ok
[INFO] [stdout] test test_step5 ... ok
[INFO] [stdout] test test_step6 ... ok
[INFO] [stdout] test test_unsolvable ... ok
[INFO] [stdout] test test_unsolvable2 ... ok
[INFO] [stdout] test weight_matrix::test_weight_matrix ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 20 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests munkres
[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" "12f672bd443349535f92a94a8565cccdcac391c8c47e49e80a132686099a3524", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "12f672bd443349535f92a94a8565cccdcac391c8c47e49e80a132686099a3524", kill_on_drop: false }`
[INFO] [stdout] 12f672bd443349535f92a94a8565cccdcac391c8c47e49e80a132686099a3524