[INFO] fetching crate rustoku-lib 0.14.0...
[INFO] testing rustoku-lib-0.14.0 against beta-2026-04-21 for beta-1.96-2
[INFO] extracting crate rustoku-lib 0.14.0 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate rustoku-lib 0.14.0
[INFO] finished tweaking crates.io crate rustoku-lib 0.14.0
[INFO] tweaked toml for crates.io crate rustoku-lib 0.14.0 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate rustoku-lib 0.14.0 on toolchain beta-2026-04-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate rustoku-lib 0.14.0 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-2026-04-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 236195c30b8bbf16a74b467b574e96f110c74920fd7d290ad20207d673fb735d
[INFO] running `Command { std: "docker" "start" "-a" "236195c30b8bbf16a74b467b574e96f110c74920fd7d290ad20207d673fb735d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "236195c30b8bbf16a74b467b574e96f110c74920fd7d290ad20207d673fb735d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "236195c30b8bbf16a74b467b574e96f110c74920fd7d290ad20207d673fb735d", kill_on_drop: false }`
[INFO] [stdout] 236195c30b8bbf16a74b467b574e96f110c74920fd7d290ad20207d673fb735d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 024cbf2568de720b2b190efcbe82ac2a86fd71428b90af323c563777962bd392
[INFO] running `Command { std: "docker" "start" "-a" "024cbf2568de720b2b190efcbe82ac2a86fd71428b90af323c563777962bd392", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.183
[INFO] [stderr]    Compiling rand_core v0.10.0
[INFO] [stderr]    Compiling getrandom v0.4.2
[INFO] [stderr]    Compiling cpufeatures v0.3.0
[INFO] [stderr]    Compiling syn v2.0.117
[INFO] [stderr]    Compiling bitflags v2.11.0
[INFO] [stderr]    Compiling rayon v1.11.0
[INFO] [stderr]    Compiling chacha20 v0.10.0
[INFO] [stderr]    Compiling rand v0.10.0
[INFO] [stderr]    Compiling thiserror-impl v2.0.18
[INFO] [stderr]    Compiling thiserror v2.0.18
[INFO] [stderr]    Compiling rustoku-lib v0.14.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 11.52s
[INFO] running `Command { std: "docker" "inspect" "024cbf2568de720b2b190efcbe82ac2a86fd71428b90af323c563777962bd392", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "024cbf2568de720b2b190efcbe82ac2a86fd71428b90af323c563777962bd392", kill_on_drop: false }`
[INFO] [stdout] 024cbf2568de720b2b190efcbe82ac2a86fd71428b90af323c563777962bd392
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8992fe8bf97c3bf5e9ce5db02ed14c4a79886da5df26170f1bd8a1231f968ce8
[INFO] running `Command { std: "docker" "start" "-a" "8992fe8bf97c3bf5e9ce5db02ed14c4a79886da5df26170f1bd8a1231f968ce8", kill_on_drop: false }`
[INFO] [stderr]    Compiling zerocopy v0.8.40
[INFO] [stderr]    Compiling syn v2.0.117
[INFO] [stderr]    Compiling cc v1.2.56
[INFO] [stderr]    Compiling clap_lex v1.0.0
[INFO] [stderr]    Compiling itoa v1.0.17
[INFO] [stderr]    Compiling getrandom v0.4.2
[INFO] [stderr]    Compiling itertools v0.13.0
[INFO] [stderr]    Compiling page_size v0.6.0
[INFO] [stderr]    Compiling clap_builder v4.5.60
[INFO] [stderr]    Compiling serde_json v1.0.149
[INFO] [stderr]    Compiling rand v0.10.0
[INFO] [stderr]    Compiling alloca v0.4.0
[INFO] [stderr]    Compiling criterion-plot v0.8.2
[INFO] [stderr]    Compiling clap v4.5.60
[INFO] [stderr]    Compiling zerocopy-derive v0.8.40
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling thiserror-impl v2.0.18
[INFO] [stderr]    Compiling thiserror v2.0.18
[INFO] [stderr]    Compiling rustoku-lib v0.14.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling tinytemplate v1.2.1
[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 criterion v0.8.2
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 40.57s
[INFO] running `Command { std: "docker" "inspect" "8992fe8bf97c3bf5e9ce5db02ed14c4a79886da5df26170f1bd8a1231f968ce8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8992fe8bf97c3bf5e9ce5db02ed14c4a79886da5df26170f1bd8a1231f968ce8", kill_on_drop: false }`
[INFO] [stdout] 8992fe8bf97c3bf5e9ce5db02ed14c4a79886da5df26170f1bd8a1231f968ce8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 8c0d388ddf01a8f90ad5d815ade3857dead4c4c89610a36f8dce5059150f0f3c
[INFO] running `Command { std: "docker" "start" "-a" "8c0d388ddf01a8f90ad5d815ade3857dead4c4c89610a36f8dce5059150f0f3c", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.12s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/rustoku_lib-56a7b3266f28e3ff)
[INFO] [stdout] 
[INFO] [stdout] running 77 tests
[INFO] [stdout] test core::board::tests::test_new_with_bytes_and_str ... ok
[INFO] [stdout] test core::board::tests::test_try_from_with_invalid_length ... ok
[INFO] [stdout] test core::board::tests::test_try_from_with_valid_input ... ok
[INFO] [stdout] test core::candidates::tests::test_get_candidates_different_cells ... ok
[INFO] [stdout] test core::candidates::tests::test_get_candidates_full_mask ... ok
[INFO] [stdout] test core::board::tests::test_try_from_with_invalid_character ... ok
[INFO] [stdout] test core::candidates::tests::test_get_candidates_empty_mask ... ok
[INFO] [stdout] test core::candidates::tests::test_get_candidates_multiple_candidates ... ok
[INFO] [stdout] test core::candidates::tests::test_get_candidates_single_candidate ... ok
[INFO] [stdout] test core::masks::tests::test_add_number_already_present_no_change ... ok
[INFO] [stdout] test core::masks::tests::test_add_number_multiple_in_same_row ... ok
[INFO] [stdout] test core::masks::tests::test_add_number_single_cell ... ok
[INFO] [stdout] test core::masks::tests::test_add_number_to_different_box ... ok
[INFO] [stdout] test core::masks::tests::test_compute_candidates_box_has_1_to_8_only_9_available ... ok
[INFO] [stdout] test core::masks::tests::test_compute_candidates_col_has_1_to_8_only_9_available ... ok
[INFO] [stdout] test core::masks::tests::test_compute_candidates_no_candidates_left ... ok
[INFO] [stdout] test core::masks::tests::test_compute_candidates_row_has_1_to_8_only_9_available ... ok
[INFO] [stdout] test core::masks::tests::test_get_box_idx_top_left_box ... ok
[INFO] [stdout] test core::masks::tests::test_is_safe_conflict_in_box ... ok
[INFO] [stdout] test core::masks::tests::test_get_box_idx_bottom_right_box ... ok
[INFO] [stdout] test core::masks::tests::test_get_box_idx_various_boxes ... ok
[INFO] [stdout] test core::masks::tests::test_get_box_idx_middle_box ... ok
[INFO] [stdout] test core::masks::tests::test_is_safe_conflict_in_column ... ok
[INFO] [stdout] test core::masks::tests::test_is_safe_conflict_in_row ... ok
[INFO] [stdout] test core::masks::tests::test_is_safe_conflict_with_current_cell_value ... ok
[INFO] [stdout] test core::masks::tests::test_is_safe_on_empty_board_always_true ... ok
[INFO] [stdout] test core::masks::tests::test_new_initializes_empty_masks ... ok
[INFO] [stdout] test core::masks::tests::test_remove_number_from_shared_row ... ok
[INFO] [stdout] test core::masks::tests::test_remove_number_not_present_no_change ... ok
[INFO] [stdout] test core::masks::tests::test_remove_number_single_value_from_cell ... ok
[INFO] [stdout] test core::techniques::hidden_pairs::tests::test_hidden_pairs_eliminates_non_pair_candidates ... ok
[INFO] [stdout] test core::masks::tests::test_compute_candidates_empty_cell_all_available ... ok
[INFO] [stdout] test core::masks::tests::test_compute_candidates_mixed_restrictions ... ok
[INFO] [stdout] test core::techniques::hidden_singles::tests::test_hidden_singles_places_in_correct_cell ... ok
[INFO] [stdout] test core::techniques::naked_pairs::tests::test_naked_pairs_eliminates_candidates ... ok
[INFO] [stdout] test core::techniques::naked_singles::tests::test_naked_singles_places_correct_value ... ok
[INFO] [stdout] test core::techniques::naked_quads::tests::test_naked_quads_eliminates_candidates ... ok
[INFO] [stdout] test core::techniques::naked_triples::tests::test_naked_triples_eliminates_candidates ... ok
[INFO] [stdout] test core::techniques::hidden_triples::tests::test_hidden_triples_eliminates_candidates ... ok
[INFO] [stdout] test core::techniques::units::tests::test_box_cells ... ok
[INFO] [stdout] test core::techniques::units::tests::test_col_cells ... ok
[INFO] [stdout] test core::techniques::swordfish::tests::test_swordfish_eliminates_from_correct_lines ... ok
[INFO] [stdout] test core::techniques::units::tests::test_find_units_with_n_candidates ... ok
[INFO] [stdout] test core::techniques::locked_candidates::tests::test_locked_candidates_eliminates_outside_box ... ok
[INFO] [stdout] test core::techniques::xyz_wing::tests::test_xyz_wing_eliminates_z_from_peers ... ok
[INFO] [stdout] test core::techniques::jellyfish::tests::test_jellyfish_eliminates_from_correct_lines ... ok
[INFO] [stdout] test core::techniques::units::tests::test_row_cells ... ok
[INFO] [stdout] test core::techniques::skyscraper::tests::test_skyscraper_eliminates_from_correct_lines ... ok
[INFO] [stdout] test core::techniques::hidden_quads::tests::test_hidden_quads_eliminates_candidates ... ok
[INFO] [stdout] test core::techniques::x_wing::tests::test_xwing_eliminates_from_correct_lines ... ok
[INFO] [stdout] test core::tests::test_is_solved_with_unsolved_board ... ok
[INFO] [stdout] test core::tests::test_generate_with_too_many_clues ... ok
[INFO] [stdout] test core::tests::test_is_solved_with_valid_solution ... ok
[INFO] [stdout] test core::tests::test_generate_with_too_few_clues ... ok
[INFO] [stdout] test core::tests::test_solve_all_with_unique_puzzle ... ok
[INFO] [stdout] test core::techniques::xy_wing::tests::test_xy_wing_eliminates_z_from_peers ... ok
[INFO] [stdout] test core::tests::test_solve_all_with_six_puzzle ... ok
[INFO] [stdout] test core::tests::test_solve_all_with_two_puzzle ... ok
[INFO] [stdout] test core::techniques::w_wing::tests::test_w_wing_eliminates_candidates ... ok
[INFO] [stdout] test core::tests::test_solve_any_with_solvable_sudoku ... ok
[INFO] [stdout] test core::tests::test_solve_any_with_unsolvable_sudoku ... ok
[INFO] [stdout] test core::tests::test_solve_until_with_bound ... ok
[INFO] [stdout] test core::tests::test_try_from_with_duplicate_initial_values ... ok
[INFO] [stdout] test format::tests::test_display_empty_mask ... ok
[INFO] [stdout] test format::tests::test_display_multiple_techniques ... ok
[INFO] [stdout] test format::tests::test_display_single_technique ... ok
[INFO] [stdout] test format::tests::test_empty_path ... ok
[INFO] [stdout] test format::tests::test_format_line ... ok
[INFO] [stdout] test format::tests::test_format_line_empty_board ... ok
[INFO] [stdout] test format::tests::test_format_grid ... ok
[INFO] [stdout] test format::tests::test_format_grid_empty_board ... ok
[INFO] [stdout] test format::tests::test_multiple_techniques_and_mixed_chunking ... ok
[INFO] [stdout] test core::tests::test_builder_and_iterator ... ok
[INFO] [stdout] test format::tests::test_single_technique_multiple_moves_with_chunking ... ok
[INFO] [stdout] test core::tests::test_solve_all_with_all_techniques ... ok
[INFO] [stdout] test core::tests::test_solve_any_with_all_techniques ... ok
[INFO] [stdout] test core::tests::test_generate_with_enough_clues ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 77 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.24s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests rustoku_lib
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test src/core/mod.rs - core::Rustoku (line 54) ... ok
[INFO] [stdout] test src/core/mod.rs - core::Rustoku (line 38) ... ok
[INFO] [stdout] test src/core/mod.rs - core::Rustoku (line 46) ... ok
[INFO] [stdout] test src/core/mod.rs - core::generate_board (line 549) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.05s
[INFO] [stdout] 
[INFO] [stdout] all doctests ran in 0.83s; merged doctests compilation took 0.78s
[INFO] running `Command { std: "docker" "inspect" "8c0d388ddf01a8f90ad5d815ade3857dead4c4c89610a36f8dce5059150f0f3c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8c0d388ddf01a8f90ad5d815ade3857dead4c4c89610a36f8dce5059150f0f3c", kill_on_drop: false }`
[INFO] [stdout] 8c0d388ddf01a8f90ad5d815ade3857dead4c4c89610a36f8dce5059150f0f3c
