[INFO] fetching crate chu-liu-edmonds 0.1.0...
[INFO] testing chu-liu-edmonds-0.1.0 against try#c2e32f1c9652b13ed99608599c1e855462f421f3 for pr-146098-7
[INFO] extracting crate chu-liu-edmonds 0.1.0 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate chu-liu-edmonds 0.1.0
[INFO] finished tweaking crates.io crate chu-liu-edmonds 0.1.0
[INFO] tweaked toml for crates.io crate chu-liu-edmonds 0.1.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate chu-liu-edmonds 0.1.0 on toolchain c2e32f1c9652b13ed99608599c1e855462f421f3
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 25 packages to latest compatible versions
[INFO] [stderr]       Adding ndarray v0.15.6 (available: v0.17.1)
[INFO] [stderr]       Adding ndarray-rand v0.14.0 (available: v0.16.0)
[INFO] [stderr]       Adding ordered-float v4.6.0 (available: v5.1.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c1ab6fd2d8828a27f04b3f3ab12ef78de34023eaae1af92454bac224b68bc6bb
[INFO] running `Command { std: "docker" "start" "-a" "c1ab6fd2d8828a27f04b3f3ab12ef78de34023eaae1af92454bac224b68bc6bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c1ab6fd2d8828a27f04b3f3ab12ef78de34023eaae1af92454bac224b68bc6bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c1ab6fd2d8828a27f04b3f3ab12ef78de34023eaae1af92454bac224b68bc6bb", kill_on_drop: false }`
[INFO] [stdout] c1ab6fd2d8828a27f04b3f3ab12ef78de34023eaae1af92454bac224b68bc6bb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c10abd3132e4e72b3c9e7e8f5c77536a5b27bf64e19cecb992dbd9bbe2600dc0
[INFO] running `Command { std: "docker" "start" "-a" "c10abd3132e4e72b3c9e7e8f5c77536a5b27bf64e19cecb992dbd9bbe2600dc0", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-integer v0.1.46
[INFO] [stderr]    Compiling ordered-float v4.6.0
[INFO] [stderr]    Compiling ndarray v0.15.6
[INFO] [stderr]    Compiling chu-liu-edmonds v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.25s
[INFO] running `Command { std: "docker" "inspect" "c10abd3132e4e72b3c9e7e8f5c77536a5b27bf64e19cecb992dbd9bbe2600dc0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c10abd3132e4e72b3c9e7e8f5c77536a5b27bf64e19cecb992dbd9bbe2600dc0", kill_on_drop: false }`
[INFO] [stdout] c10abd3132e4e72b3c9e7e8f5c77536a5b27bf64e19cecb992dbd9bbe2600dc0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4c15ce56abfe873f97a9fd908101387e8ac503d6da880b7964e80b4f69f2c453
[INFO] running `Command { std: "docker" "start" "-a" "4c15ce56abfe873f97a9fd908101387e8ac503d6da880b7964e80b4f69f2c453", kill_on_drop: false }`
[INFO] [stderr]    Compiling ordered-float v4.6.0
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling ndarray v0.15.6
[INFO] [stderr]    Compiling rand_distr v0.4.3
[INFO] [stderr]    Compiling ndarray-rand v0.14.0
[INFO] [stderr]    Compiling chu-liu-edmonds v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 5.21s
[INFO] running `Command { std: "docker" "inspect" "4c15ce56abfe873f97a9fd908101387e8ac503d6da880b7964e80b4f69f2c453", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4c15ce56abfe873f97a9fd908101387e8ac503d6da880b7964e80b4f69f2c453", kill_on_drop: false }`
[INFO] [stdout] 4c15ce56abfe873f97a9fd908101387e8ac503d6da880b7964e80b4f69f2c453
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 7ae3ef88825c23bb25554b73e3a1e3da2b83328c2a6b4069c9a386c3119408a6
[INFO] running `Command { std: "docker" "start" "-a" "7ae3ef88825c23bb25554b73e3a1e3da2b83328c2a6b4069c9a386c3119408a6", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/chu_liu_edmonds-1621d6ac96da10d4)
[INFO] [stdout] 
[INFO] [stdout] running 7 tests
[INFO] [stdout] test tests::correctly_decodes_random_large_matrices ... ok
[INFO] [stdout] test tests::finds_max_parents_with_inactive_vertices ... ok
[INFO] [stdout] test tests::correctly_decodes_toy_matrices ... ok
[INFO] [stdout] test tests::finds_max_parents ... ok
[INFO] [stdout] test tests::finds_cycle ... ok
[INFO] [stdout] test tests::panics_on_incorrect_shape_score_matrix - should panic ... ok
[INFO] [stdout] test tests::finds_trees_in_random_graphs ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 7 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.12s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests chu_liu_edmonds
[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" "7ae3ef88825c23bb25554b73e3a1e3da2b83328c2a6b4069c9a386c3119408a6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7ae3ef88825c23bb25554b73e3a1e3da2b83328c2a6b4069c9a386c3119408a6", kill_on_drop: false }`
[INFO] [stdout] 7ae3ef88825c23bb25554b73e3a1e3da2b83328c2a6b4069c9a386c3119408a6