[INFO] fetching crate fynch 0.1.0...
[INFO] testing fynch-0.1.0 against beta-2026-01-20 for beta-1.94-1
[INFO] extracting crate fynch 0.1.0 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate fynch 0.1.0
[INFO] finished tweaking crates.io crate fynch 0.1.0
[INFO] tweaked toml for crates.io crate fynch 0.1.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate fynch 0.1.0 on toolchain beta-2026-01-20
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-01-20" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate fynch 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-01-20" "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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-01-20" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2a4199f875751f5eca8c392e4b43876c5ed14804442e2810b30947b889982bb8
[INFO] running `Command { std: "docker" "start" "-a" "2a4199f875751f5eca8c392e4b43876c5ed14804442e2810b30947b889982bb8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2a4199f875751f5eca8c392e4b43876c5ed14804442e2810b30947b889982bb8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2a4199f875751f5eca8c392e4b43876c5ed14804442e2810b30947b889982bb8", kill_on_drop: false }`
[INFO] [stdout] 2a4199f875751f5eca8c392e4b43876c5ed14804442e2810b30947b889982bb8
[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=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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-01-20" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ba9fef4a17d1c53424f016df21a535b3a193f3dea1c80c0d158debf9b1d31868
[INFO] running `Command { std: "docker" "start" "-a" "ba9fef4a17d1c53424f016df21a535b3a193f3dea1c80c0d158debf9b1d31868", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling syn v2.0.114
[INFO] [stderr]    Compiling matrixmultiply v0.3.10
[INFO] [stderr]    Compiling rawpointer v0.2.1
[INFO] [stderr]    Compiling num-integer v0.1.46
[INFO] [stderr]    Compiling num-complex v0.4.6
[INFO] [stderr]    Compiling ndarray v0.16.1
[INFO] [stderr]    Compiling thiserror-impl v2.0.17
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling thiserror v2.0.17
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling logp v0.1.0
[INFO] [stderr]    Compiling fynch v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 13.90s
[INFO] running `Command { std: "docker" "inspect" "ba9fef4a17d1c53424f016df21a535b3a193f3dea1c80c0d158debf9b1d31868", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ba9fef4a17d1c53424f016df21a535b3a193f3dea1c80c0d158debf9b1d31868", kill_on_drop: false }`
[INFO] [stdout] ba9fef4a17d1c53424f016df21a535b3a193f3dea1c80c0d158debf9b1d31868
[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=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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-01-20" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0147fc33b3fc03538a57e16f9c93995f2eeb8a2494ffa6c52813884d6e1b9199
[INFO] running `Command { std: "docker" "start" "-a" "0147fc33b3fc03538a57e16f9c93995f2eeb8a2494ffa6c52813884d6e1b9199", kill_on_drop: false }`
[INFO] [stderr]    Compiling zerocopy v0.8.33
[INFO] [stderr]    Compiling getrandom v0.3.4
[INFO] [stderr]    Compiling serde_core v1.0.228
[INFO] [stderr]    Compiling crossbeam-utils v0.8.21
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling syn v2.0.114
[INFO] [stderr]    Compiling rustix v1.1.3
[INFO] [stderr]    Compiling zmij v1.0.14
[INFO] [stderr]    Compiling rayon-core v1.13.0
[INFO] [stderr]    Compiling bitflags v2.10.0
[INFO] [stderr]    Compiling linux-raw-sys v0.11.0
[INFO] [stderr]    Compiling rand_core v0.9.5
[INFO] [stderr]    Compiling anstyle v1.0.13
[INFO] [stderr]    Compiling ciborium-io v0.2.2
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.18
[INFO] [stderr]    Compiling fastrand v2.3.0
[INFO] [stderr]    Compiling crossbeam-deque v0.8.6
[INFO] [stderr]    Compiling clap_lex v0.7.7
[INFO] [stderr]    Compiling plotters-backend v0.3.7
[INFO] [stderr]    Compiling regex-automata v0.4.13
[INFO] [stderr]    Compiling num-integer v0.1.46
[INFO] [stderr]    Compiling num-complex v0.4.6
[INFO] [stderr]    Compiling plotters-svg v0.3.7
[INFO] [stderr]    Compiling clap_builder v4.5.54
[INFO] [stderr]    Compiling ndarray v0.16.1
[INFO] [stderr]    Compiling wait-timeout v0.2.1
[INFO] [stderr]    Compiling bit-vec v0.8.0
[INFO] [stderr]    Compiling cast v0.3.0
[INFO] [stderr]    Compiling walkdir v2.5.0
[INFO] [stderr]    Compiling criterion-plot v0.5.0
[INFO] [stderr]    Compiling tempfile v3.24.0
[INFO] [stderr]    Compiling rusty-fork v0.3.1
[INFO] [stderr]    Compiling regex v1.12.2
[INFO] [stderr]    Compiling bit-set v0.8.0
[INFO] [stderr]    Compiling rayon v1.11.0
[INFO] [stderr]    Compiling plotters v0.3.7
[INFO] [stderr]    Compiling serde_json v1.0.149
[INFO] [stderr]    Compiling rand_xorshift v0.4.0
[INFO] [stderr]    Compiling is-terminal v0.4.17
[INFO] [stderr]    Compiling unarray v0.1.4
[INFO] [stderr]    Compiling anes v0.1.6
[INFO] [stderr]    Compiling clap v4.5.54
[INFO] [stderr]    Compiling oorandom v11.1.5
[INFO] [stderr]    Compiling approx v0.5.1
[INFO] [stderr]    Compiling zerocopy-derive v0.8.33
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling thiserror-impl v2.0.17
[INFO] [stderr]    Compiling thiserror v2.0.17
[INFO] [stderr]    Compiling logp v0.1.0
[INFO] [stderr]    Compiling tinytemplate v1.2.1
[INFO] [stderr]    Compiling fynch v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling ppv-lite86 v0.2.21
[INFO] [stderr]    Compiling half v2.7.1
[INFO] [stderr]    Compiling ciborium-ll v0.2.2
[INFO] [stderr]    Compiling ciborium v0.2.2
[INFO] [stderr]    Compiling rand_chacha v0.9.0
[INFO] [stderr]    Compiling rand v0.9.2
[INFO] [stderr]    Compiling criterion v0.5.1
[INFO] [stderr]    Compiling proptest v1.9.0
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 54.09s
[INFO] running `Command { std: "docker" "inspect" "0147fc33b3fc03538a57e16f9c93995f2eeb8a2494ffa6c52813884d6e1b9199", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0147fc33b3fc03538a57e16f9c93995f2eeb8a2494ffa6c52813884d6e1b9199", kill_on_drop: false }`
[INFO] [stdout] 0147fc33b3fc03538a57e16f9c93995f2eeb8a2494ffa6c52813884d6e1b9199
[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=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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-01-20" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 7b7d41bc9c8989ed280bcc504bc9478ab20785a4e01a55a977fc4a9df5d6813b
[INFO] running `Command { std: "docker" "start" "-a" "7b7d41bc9c8989ed280bcc504bc9478ab20785a4e01a55a977fc4a9df5d6813b", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.22s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/fynch-c65320906cf290a6)
[INFO] [stdout] 
[INFO] [stdout] running 53 tests
[INFO] [stdout] test fenchel::tests::test_fy_loss_nonnegative ... ok
[INFO] [stdout] test fenchel::tests::test_softmax_temperature_scaling ... ok
[INFO] [stdout] test fenchel::tests::test_shannon_loss_equals_cross_entropy ... ok
[INFO] [stdout] test fenchel::tests::test_sparsemax_is_sparse ... ok
[INFO] [stdout] test fenchel::tests::test_softmax_sums_to_one ... ok
[INFO] [stdout] test fenchel::tests::test_fy_loss_zero_at_prediction ... ok
[INFO] [stdout] test fenchel::tests::test_entmax_interpolates ... ok
[INFO] [stdout] test fenchel::tests::test_sparsemax_sums_to_one ... ok
[INFO] [stdout] test loss::tests::test_pairwise_margin ... ok
[INFO] [stdout] test loss::tests::test_listmle_basic ... ok
[INFO] [stdout] test loss::tests::test_pairwise_margin_wrong_order ... ok
[INFO] [stdout] test loss::tests::test_spearman_negative_correlation ... ok
[INFO] [stdout] test metrics::tests::test_hits_at_k_empty ... ok
[INFO] [stdout] test metrics::tests::test_mean_rank ... ok
[INFO] [stdout] test loss::tests::test_listnet_same_ranking ... ok
[INFO] [stdout] test loss::tests::test_spearman_perfect_correlation ... ok
[INFO] [stdout] test metrics::tests::test_compute_rank ... ok
[INFO] [stdout] test metrics::tests::test_hits_at_k ... ok
[INFO] [stdout] test metrics::tests::test_mrr ... ok
[INFO] [stdout] test metrics::tests::test_ndcg_perfect ... ok
[INFO] [stdout] test metrics::tests::test_ndcg_suboptimal ... ok
[INFO] [stdout] test metrics::tests::test_mrr_all_rank_one ... ok
[INFO] [stdout] test metrics::tests::test_ranking_metrics_struct ... ok
[INFO] [stdout] test sigmoid::tests::test_sigmoid_center ... ok
[INFO] [stdout] test sigmoid::tests::test_log_sigmoid ... ok
[INFO] [stdout] test metrics::tests::test_mrr_empty ... ok
[INFO] [stdout] test sigmoid::tests::test_sigmoid_derivative ... ok
[INFO] [stdout] test sigmoid::tests::test_sigmoid_extremes ... ok
[INFO] [stdout] test sigmoid::tests::test_sigmoid_symmetry ... ok
[INFO] [stdout] test sigmoid::tests::test_softplus ... ok
[INFO] [stdout] test sinkhorn::tests::test_empty_input ... ok
[INFO] [stdout] test sinkhorn::tests::test_epsilon_effect ... ok
[INFO] [stdout] test sinkhorn::tests::test_doubly_stochastic ... ok
[INFO] [stdout] test sinkhorn::tests::test_single_element ... ok
[INFO] [stdout] test sinkhorn::tests::test_sinkhorn_rank_basic ... ok
[INFO] [stdout] test tests::test_empty_input ... ok
[INFO] [stdout] test sinkhorn::tests::test_sinkhorn_sort_basic ... ok
[INFO] [stdout] test tests::test_invalid_temperature ... ok
[INFO] [stdout] test tests::test_soft_rank_ordering ... ok
[INFO] [stdout] test tests::test_pava_reverse ... ok
[INFO] [stdout] test tests::test_pava_simple ... ok
[INFO] [stdout] test tests::test_soft_topk ... ok
[INFO] [stdout] test topk::tests::test_bottomk_basic ... ok
[INFO] [stdout] test tests::test_soft_sort_approximates_sort ... ok
[INFO] [stdout] test topk::tests::test_temperature_effect ... ok
[INFO] [stdout] test topk::tests::test_topk_empty ... ok
[INFO] [stdout] test topk::tests::test_topk_basic ... ok
[INFO] [stdout] test topk::tests::test_topk_k_zero ... ok
[INFO] [stdout] test tests::test_pava_already_monotonic ... ok
[INFO] [stdout] test topk::tests::test_topk_k_geq_n ... ok
[INFO] [stdout] test loss::tests::prop_infonce_higher_pos_lower_loss ... ok
[INFO] [stdout] test fenchel::tests::test_entropy_uniform ... ok
[INFO] [stdout] test loss::tests::prop_infonce_non_negative ... ok
[INFO] [stderr]    Doc-tests fynch
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 53 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.04s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 33 tests
[INFO] [stdout] test src/fenchel.rs - fenchel::Tsallis (line 201) ... ok
[INFO] [stdout] test src/fenchel.rs - fenchel::Shannon (line 100) ... ok
[INFO] [stdout] test src/fenchel.rs - fenchel::SquaredL2 (line 148) ... ok
[INFO] [stdout] test src/lib.rs - (line 112) ... ok
[INFO] [stdout] test src/fenchel.rs - fenchel::softmax_with_temperature (line 469) ... ok
[INFO] [stdout] test src/lib.rs - (line 80) ... ok
[INFO] [stdout] test src/lib.rs - (line 61) ... ok
[INFO] [stdout] test src/lib.rs - (line 98) ... ok
[INFO] [stdout] test src/lib.rs - pava (line 205) ... ok
[INFO] [stdout] test src/lib.rs - pava_weighted (line 274) ... ok
[INFO] [stdout] test src/loss.rs - loss::listmle_loss (line 194) ... ok
[INFO] [stdout] test src/lib.rs - soft_rank (line 355) ... ok
[INFO] [stdout] test src/loss.rs - loss::pairwise_margin_loss (line 255) ... ok
[INFO] [stdout] test src/lib.rs - soft_sort (line 401) ... ok
[INFO] [stdout] test src/loss.rs - loss::spearman_loss (line 75) ... ok
[INFO] [stdout] test src/loss.rs - loss::listnet_loss (line 141) ... ok
[INFO] [stdout] test src/lib.rs - soft_topk_indicator (line 498) ... ok
[INFO] [stdout] test src/metrics.rs - metrics::compute_rank (line 249) ... ok
[INFO] [stdout] test src/metrics.rs - metrics (line 17) ... ok
[INFO] [stdout] test src/metrics.rs - metrics::ndcg_at_k (line 219) ... ok
[INFO] [stdout] test src/metrics.rs - metrics::mean_rank (line 134) ... ok
[INFO] [stdout] test src/metrics.rs - metrics::hits_at_k (line 102) ... ok
[INFO] [stdout] test src/sigmoid.rs - sigmoid::log_sigmoid (line 79) ... ok
[INFO] [stdout] test src/metrics.rs - metrics::ndcg (line 174) ... ok
[INFO] [stdout] test src/metrics.rs - metrics::mrr (line 59) ... ok
[INFO] [stdout] test src/sigmoid.rs - sigmoid::sigmoid (line 26) ... ok
[INFO] [stdout] test src/sigmoid.rs - sigmoid::softplus (line 100) ... ok
[INFO] [stdout] test src/sinkhorn.rs - sinkhorn::sinkhorn_permutation (line 84) ... ok
[INFO] [stdout] test src/sigmoid.rs - sigmoid::sigmoid_derivative (line 57) ... ok
[INFO] [stdout] test src/topk.rs - topk::differentiable_bottomk (line 112) ... ok
[INFO] [stdout] test src/topk.rs - topk::differentiable_topk (line 47) ... ok
[INFO] [stdout] test src/sinkhorn.rs - sinkhorn::sinkhorn_rank (line 203) ... ok
[INFO] [stdout] test src/sinkhorn.rs - sinkhorn::sinkhorn_sort (line 257) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 33 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 2.67s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "7b7d41bc9c8989ed280bcc504bc9478ab20785a4e01a55a977fc4a9df5d6813b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7b7d41bc9c8989ed280bcc504bc9478ab20785a4e01a55a977fc4a9df5d6813b", kill_on_drop: false }`
[INFO] [stdout] 7b7d41bc9c8989ed280bcc504bc9478ab20785a4e01a55a977fc4a9df5d6813b
