[INFO] fetching crate libmf 0.3.0...
[INFO] testing libmf-0.3.0 against beta-2025-10-28 for beta-1.92-2
[INFO] extracting crate libmf 0.3.0 into /workspace/builds/worker-1-tc2/source
[INFO] started tweaking crates.io crate libmf 0.3.0
[INFO] finished tweaking crates.io crate libmf 0.3.0
[INFO] tweaked toml for crates.io crate libmf 0.3.0 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate libmf 0.3.0 on toolchain beta-2025-10-28
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-10-28" "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-2025-10-28" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 3 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-10-28" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "+beta-2025-10-28" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 98a8aa8fb71938e9ba782cb3069f65e489c6cbc1a9ba5d995efe5349b590d802
[INFO] running `Command { std: "docker" "start" "-a" "98a8aa8fb71938e9ba782cb3069f65e489c6cbc1a9ba5d995efe5349b590d802", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "98a8aa8fb71938e9ba782cb3069f65e489c6cbc1a9ba5d995efe5349b590d802", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "98a8aa8fb71938e9ba782cb3069f65e489c6cbc1a9ba5d995efe5349b590d802", kill_on_drop: false }`
[INFO] [stdout] 98a8aa8fb71938e9ba782cb3069f65e489c6cbc1a9ba5d995efe5349b590d802
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 939df5cfd3786e7d5fc45ddf67c43e41a887660fb741ca478314d62de8e95326
[INFO] running `Command { std: "docker" "start" "-a" "939df5cfd3786e7d5fc45ddf67c43e41a887660fb741ca478314d62de8e95326", kill_on_drop: false }`
[INFO] [stderr]    Compiling libmf v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.73s
[INFO] running `Command { std: "docker" "inspect" "939df5cfd3786e7d5fc45ddf67c43e41a887660fb741ca478314d62de8e95326", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "939df5cfd3786e7d5fc45ddf67c43e41a887660fb741ca478314d62de8e95326", kill_on_drop: false }`
[INFO] [stdout] 939df5cfd3786e7d5fc45ddf67c43e41a887660fb741ca478314d62de8e95326
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c796a900ab819034bd1252d3967514ce3e5f13a84ec6e46d874f216ce70860b0
[INFO] running `Command { std: "docker" "start" "-a" "c796a900ab819034bd1252d3967514ce3e5f13a84ec6e46d874f216ce70860b0", kill_on_drop: false }`
[INFO] [stderr]    Compiling libmf v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.64s
[INFO] running `Command { std: "docker" "inspect" "c796a900ab819034bd1252d3967514ce3e5f13a84ec6e46d874f216ce70860b0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c796a900ab819034bd1252d3967514ce3e5f13a84ec6e46d874f216ce70860b0", kill_on_drop: false }`
[INFO] [stdout] c796a900ab819034bd1252d3967514ce3e5f13a84ec6e46d874f216ce70860b0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] d2bba531ce2ebf4b5dac5e948843d97b88919e33a924424dcbd50a804d4de2a5
[INFO] running `Command { std: "docker" "start" "-a" "d2bba531ce2ebf4b5dac5e948843d97b88919e33a924424dcbd50a804d4de2a5", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/libmf-83f85508c26687bf)
[INFO] [stdout] running 17 tests
[INFO] [stdout] warning: train on an empty training set
[INFO] [stdout] warning: train on an empty training set
[INFO] [stdout] test matrix::tests::test_new ... ok
[INFO] [stdout] test matrix::tests::test_with_capacity ... ok
[INFO] [stdout] test model::tests::test_fit_bad_params ... ok
[INFO] [stdout] test model::tests::test_cv_bad_params ... ok
[INFO] [stdout] test model::tests::test_fit_empty ... ok
[INFO] [stdout] test model::tests::test_fit_eval_empty ... ok
[INFO] [stdout] test model::tests::test_fit_eval_bad_params ... ok
[INFO] [stdout] test model::tests::test_load_missing ... ok
[INFO] [stdout] test model::tests::test_loss ... ok
[INFO] [stdout] test model::tests::test_fit_eval ... ok
[INFO] [stdout] test model::tests::test_metrics ... ok
[INFO] [stdout] test model::tests::test_fit ... ok
[INFO] [stdout] test model::tests::test_predict_out_of_range ... ok
[INFO] [stdout] test model::tests::test_save_load ... ok
[INFO] [stdout] test model::tests::test_save_missing ... ok
[INFO] [stdout] test model::tests::test_loss_real_kl ... ok
[INFO] [stdout] test model::tests::test_cv ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 17 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.32s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "d2bba531ce2ebf4b5dac5e948843d97b88919e33a924424dcbd50a804d4de2a5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d2bba531ce2ebf4b5dac5e948843d97b88919e33a924424dcbd50a804d4de2a5", kill_on_drop: false }`
[INFO] [stdout] d2bba531ce2ebf4b5dac5e948843d97b88919e33a924424dcbd50a804d4de2a5