[INFO] fetching crate chu-liu-edmonds 0.1.0...
[INFO] testing chu-liu-edmonds-0.1.0 against master#c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38 for pr-146098-7
[INFO] extracting crate chu-liu-edmonds 0.1.0 into /workspace/builds/worker-4-tc1/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-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate chu-liu-edmonds 0.1.0 on toolchain c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "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" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "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" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ndarray-rand v0.14.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d977d3cf83035a13ddb94ab624f6b173b8783e0650987e26d233b86513c53f8a
[INFO] running `Command { std: "docker" "start" "-a" "d977d3cf83035a13ddb94ab624f6b173b8783e0650987e26d233b86513c53f8a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d977d3cf83035a13ddb94ab624f6b173b8783e0650987e26d233b86513c53f8a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d977d3cf83035a13ddb94ab624f6b173b8783e0650987e26d233b86513c53f8a", kill_on_drop: false }`
[INFO] [stdout] d977d3cf83035a13ddb94ab624f6b173b8783e0650987e26d233b86513c53f8a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] eec0492c4a4eebec0ba34e6be5ac0efe824b05f0231c2498d1b4142e22d34825
[INFO] running `Command { std: "docker" "start" "-a" "eec0492c4a4eebec0ba34e6be5ac0efe824b05f0231c2498d1b4142e22d34825", 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 4.77s
[INFO] running `Command { std: "docker" "inspect" "eec0492c4a4eebec0ba34e6be5ac0efe824b05f0231c2498d1b4142e22d34825", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eec0492c4a4eebec0ba34e6be5ac0efe824b05f0231c2498d1b4142e22d34825", kill_on_drop: false }`
[INFO] [stdout] eec0492c4a4eebec0ba34e6be5ac0efe824b05f0231c2498d1b4142e22d34825
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f8c14c888b8ee18d312709f2f992514d0f576c4786a49f759050304e6136ddfa
[INFO] running `Command { std: "docker" "start" "-a" "f8c14c888b8ee18d312709f2f992514d0f576c4786a49f759050304e6136ddfa", kill_on_drop: false }`
[INFO] [stderr]    Compiling ordered-float v4.6.0
[INFO] [stderr]    Compiling ndarray v0.15.6
[INFO] [stderr]    Compiling rand v0.8.5
[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 4.92s
[INFO] running `Command { std: "docker" "inspect" "f8c14c888b8ee18d312709f2f992514d0f576c4786a49f759050304e6136ddfa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f8c14c888b8ee18d312709f2f992514d0f576c4786a49f759050304e6136ddfa", kill_on_drop: false }`
[INFO] [stdout] f8c14c888b8ee18d312709f2f992514d0f576c4786a49f759050304e6136ddfa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 9eeee67b092fa8004b3524d4ddb59f6f5e1322eb24e567ddc02a2b3a575a238f
[INFO] running `Command { std: "docker" "start" "-a" "9eeee67b092fa8004b3524d4ddb59f6f5e1322eb24e567ddc02a2b3a575a238f", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[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_toy_matrices ... ok
[INFO] [stdout] test tests::finds_cycle ... ok
[INFO] [stdout] test tests::correctly_decodes_random_large_matrices ... ok
[INFO] [stdout] test tests::finds_max_parents ... ok
[INFO] [stdout] test tests::finds_max_parents_with_inactive_vertices ... 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 0.16s
[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" "9eeee67b092fa8004b3524d4ddb59f6f5e1322eb24e567ddc02a2b3a575a238f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9eeee67b092fa8004b3524d4ddb59f6f5e1322eb24e567ddc02a2b3a575a238f", kill_on_drop: false }`
[INFO] [stdout] 9eeee67b092fa8004b3524d4ddb59f6f5e1322eb24e567ddc02a2b3a575a238f