[INFO] fetching crate munkres 0.5.1...
[INFO] testing munkres-0.5.1 against 1.49.0 for beta-1.50-1
[INFO] extracting crate munkres 0.5.1 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate munkres 0.5.1 on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate munkres 0.5.1
[INFO] finished tweaking crates.io crate munkres 0.5.1
[INFO] tweaked toml for crates.io crate munkres 0.5.1 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 59d8467b9b7b5638699e3ff521adfa8c52ab753d0ae0f95412c200b95b7fa2b2
[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" "59d8467b9b7b5638699e3ff521adfa8c52ab753d0ae0f95412c200b95b7fa2b2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "59d8467b9b7b5638699e3ff521adfa8c52ab753d0ae0f95412c200b95b7fa2b2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "59d8467b9b7b5638699e3ff521adfa8c52ab753d0ae0f95412c200b95b7fa2b2", kill_on_drop: false }`
[INFO] [stdout] 59d8467b9b7b5638699e3ff521adfa8c52ab753d0ae0f95412c200b95b7fa2b2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b5fd721ecdc0985abc2f7d744d23e82f2c004dafdf07e71370a42f756fb0aa15
[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" "b5fd721ecdc0985abc2f7d744d23e82f2c004dafdf07e71370a42f756fb0aa15", kill_on_drop: false }`
[INFO] [stderr]    Compiling ndarray v0.12.1
[INFO] [stderr]    Compiling munkres v0.5.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.12s
[INFO] running `Command { std: "docker" "inspect" "b5fd721ecdc0985abc2f7d744d23e82f2c004dafdf07e71370a42f756fb0aa15", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b5fd721ecdc0985abc2f7d744d23e82f2c004dafdf07e71370a42f756fb0aa15", kill_on_drop: false }`
[INFO] [stdout] b5fd721ecdc0985abc2f7d744d23e82f2c004dafdf07e71370a42f756fb0aa15
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 19af707aed1a877e49d719ea6a72e343097168f557f498dd7b3acc6d61715f4f
[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" "19af707aed1a877e49d719ea6a72e343097168f557f498dd7b3acc6d61715f4f", kill_on_drop: false }`
[INFO] [stderr]    Compiling bstr v0.2.14
[INFO] [stderr]    Compiling csv v1.1.5
[INFO] [stderr]    Compiling criterion v0.2.11
[INFO] [stderr]    Compiling munkres v0.5.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 15.78s
[INFO] running `Command { std: "docker" "inspect" "19af707aed1a877e49d719ea6a72e343097168f557f498dd7b3acc6d61715f4f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "19af707aed1a877e49d719ea6a72e343097168f557f498dd7b3acc6d61715f4f", kill_on_drop: false }`
[INFO] [stdout] 19af707aed1a877e49d719ea6a72e343097168f557f498dd7b3acc6d61715f4f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 34dd23c663946b20ecf1c6cb8ead0a161e844c42d9235e3a811fb2e719443bb9
[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" "34dd23c663946b20ecf1c6cb8ead0a161e844c42d9235e3a811fb2e719443bb9", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/munkres-f517847411fb343c
[INFO] [stdout] 
[INFO] [stdout] running 20 tests
[INFO] [stdout] test test_invalid2 ... ok
[INFO] [stdout] test test_invalid ... ok
[INFO] [stdout] test test_solve_equal_rows2 ... ok
[INFO] [stdout] test test_solve ... ok
[INFO] [stdout] test test_solve_equal_rows5_float ... ok
[INFO] [stdout] test test_should_be_unsolvable_if_first_cell_of_each_row_is_invalid ... ok
[INFO] [stdout] test test_solve_equal_rows5 ... ok
[INFO] [stdout] test test_step4_case1 ... ok
[INFO] [stdout] test test_solve_equal_rows5_float2 ... ok
[INFO] [stdout] test test_step4_case2 ... ok
[INFO] [stdout] test test_unsolvable2 ... ok
[INFO] [stdout] test test_step5 ... ok
[INFO] [stdout] test weight_matrix::test_weight_matrix ... ok
[INFO] [stdout] test test_unsolvable ... ok
[INFO] [stdout] test test_step1 ... ok
[INFO] [stdout] test test_step3 ... ok
[INFO] [stdout] test test_step2 ... ok
[INFO] [stdout] test test_step6 ... ok
[INFO] [stdout] test test_solve_random10 ... ok
[INFO] [stdout] test test_solve_equal_rows_stepwise ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 20 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[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
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "34dd23c663946b20ecf1c6cb8ead0a161e844c42d9235e3a811fb2e719443bb9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "34dd23c663946b20ecf1c6cb8ead0a161e844c42d9235e3a811fb2e719443bb9", kill_on_drop: false }`
[INFO] [stdout] 34dd23c663946b20ecf1c6cb8ead0a161e844c42d9235e3a811fb2e719443bb9