[INFO] fetching crate chu-liu-edmonds 0.1.0...
[INFO] testing chu-liu-edmonds-0.1.0 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate chu-liu-edmonds 0.1.0 into /workspace/builds/worker-2-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-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate chu-liu-edmonds 0.1.0 on toolchain beta-2025-09-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "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" "+beta-2025-09-21" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 25 packages to latest compatible versions
[INFO] [stderr]       Adding ndarray v0.15.6 (available: v0.16.1)
[INFO] [stderr]       Adding ndarray-rand v0.14.0 (available: v0.15.0)
[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" "+beta-2025-09-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 101162390df71da3041692162d8250324bcc4ebac445d348a9898ce74a57649b
[INFO] running `Command { std: "docker" "start" "-a" "101162390df71da3041692162d8250324bcc4ebac445d348a9898ce74a57649b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "101162390df71da3041692162d8250324bcc4ebac445d348a9898ce74a57649b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "101162390df71da3041692162d8250324bcc4ebac445d348a9898ce74a57649b", kill_on_drop: false }`
[INFO] [stdout] 101162390df71da3041692162d8250324bcc4ebac445d348a9898ce74a57649b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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=warn" "-e" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 253e8752b12115dbe88a34882f0f8e642061b0912c11aed71bb54c6d7e121046
[INFO] running `Command { std: "docker" "start" "-a" "253e8752b12115dbe88a34882f0f8e642061b0912c11aed71bb54c6d7e121046", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling num-integer v0.1.46
[INFO] [stderr]    Compiling num-complex v0.4.6
[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 6.67s
[INFO] running `Command { std: "docker" "inspect" "253e8752b12115dbe88a34882f0f8e642061b0912c11aed71bb54c6d7e121046", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "253e8752b12115dbe88a34882f0f8e642061b0912c11aed71bb54c6d7e121046", kill_on_drop: false }`
[INFO] [stdout] 253e8752b12115dbe88a34882f0f8e642061b0912c11aed71bb54c6d7e121046
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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=warn" "-e" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 93f1e75fa9a773fd33c5dbd84fadb4808f4746c1393ef0e0660a7f0e6b6b74a9
[INFO] running `Command { std: "docker" "start" "-a" "93f1e75fa9a773fd33c5dbd84fadb4808f4746c1393ef0e0660a7f0e6b6b74a9", kill_on_drop: false }`
[INFO] [stderr]    Compiling libm v0.2.15
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling libc v0.2.176
[INFO] [stderr]    Compiling getrandom v0.2.16
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling num-integer v0.1.46
[INFO] [stderr]    Compiling num-complex v0.4.6
[INFO] [stderr]    Compiling ordered-float v4.6.0
[INFO] [stderr]    Compiling rand_distr v0.4.3
[INFO] [stderr]    Compiling ndarray v0.15.6
[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 8.78s
[INFO] running `Command { std: "docker" "inspect" "93f1e75fa9a773fd33c5dbd84fadb4808f4746c1393ef0e0660a7f0e6b6b74a9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "93f1e75fa9a773fd33c5dbd84fadb4808f4746c1393ef0e0660a7f0e6b6b74a9", kill_on_drop: false }`
[INFO] [stdout] 93f1e75fa9a773fd33c5dbd84fadb4808f4746c1393ef0e0660a7f0e6b6b74a9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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=warn" "-e" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 76fffa8c031e681fc3eda7e7e3f41b3ce0771c27f1b34516f48e9f1afae80ffa
[INFO] running `Command { std: "docker" "start" "-a" "76fffa8c031e681fc3eda7e7e3f41b3ce0771c27f1b34516f48e9f1afae80ffa", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.09s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/chu_liu_edmonds-6c744f7d15dcf56b)
[INFO] [stdout] 
[INFO] [stdout] running 7 tests
[INFO] [stdout] test tests::finds_cycle ... ok
[INFO] [stdout] test tests::finds_max_parents ... ok
[INFO] [stdout] test tests::correctly_decodes_toy_matrices ... ok
[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::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" "76fffa8c031e681fc3eda7e7e3f41b3ce0771c27f1b34516f48e9f1afae80ffa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "76fffa8c031e681fc3eda7e7e3f41b3ce0771c27f1b34516f48e9f1afae80ffa", kill_on_drop: false }`
[INFO] [stdout] 76fffa8c031e681fc3eda7e7e3f41b3ce0771c27f1b34516f48e9f1afae80ffa