[INFO] cloning repository https://github.com/matt-cross/rust-sudoko
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/matt-cross/rust-sudoko" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmatt-cross%2Frust-sudoko", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmatt-cross%2Frust-sudoko'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4c22d67d2c7a8d634409d0dccbfc98237de8a474
[INFO] testing matt-cross/rust-sudoko against beta-2025-09-21 for beta-1.91-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmatt-cross%2Frust-sudoko" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/matt-cross/rust-sudoko
[INFO] finished tweaking git repo https://github.com/matt-cross/rust-sudoko
[INFO] tweaked toml for git repo https://github.com/matt-cross/rust-sudoko written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/matt-cross/rust-sudoko 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] crate git repo https://github.com/matt-cross/rust-sudoko 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-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] 025d401e88aba88ef35358c88471710af7837d01d64391b9bb6df3a9b501ca6f
[INFO] running `Command { std: "docker" "start" "-a" "025d401e88aba88ef35358c88471710af7837d01d64391b9bb6df3a9b501ca6f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "025d401e88aba88ef35358c88471710af7837d01d64391b9bb6df3a9b501ca6f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "025d401e88aba88ef35358c88471710af7837d01d64391b9bb6df3a9b501ca6f", kill_on_drop: false }`
[INFO] [stdout] 025d401e88aba88ef35358c88471710af7837d01d64391b9bb6df3a9b501ca6f
[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] b4fcdd07eae16069d25cf1bed77e2927054dbb4880f7f521acc2f2162980667d
[INFO] running `Command { std: "docker" "start" "-a" "b4fcdd07eae16069d25cf1bed77e2927054dbb4880f7f521acc2f2162980667d", kill_on_drop: false }`
[INFO] [stderr]    Compiling colored v3.0.0
[INFO] [stderr]    Compiling fixedbitset v0.5.7
[INFO] [stderr]    Compiling rust-sudoko v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated items `from_digits`, `count`, and `digits` are never used
[INFO] [stdout]    --> src/main.rs:31:8
[INFO] [stdout]     |
[INFO] [stdout]  21 | impl Cell {
[INFO] [stdout]     | --------- associated items in this implementation
[INFO] [stdout] ...
[INFO] [stdout]  31 |     fn from_digits<I>(digits: I) -> Self
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 100 |     fn count(&self) -> usize {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 108 |     fn digits(&self) -> HashSet<usize> {
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `CellAndLoc` is never constructed
[INFO] [stdout]    --> src/main.rs:126:8
[INFO] [stdout]     |
[INFO] [stdout] 126 | struct CellAndLoc {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `with_board_idx`, and `with_group_idx` are never used
[INFO] [stdout]    --> src/main.rs:133:8
[INFO] [stdout]     |
[INFO] [stdout] 132 | impl CellAndLoc {
[INFO] [stdout]     | --------------- associated items in this implementation
[INFO] [stdout] 133 |     fn new(cell: &Cell) -> CellAndLoc {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 141 |     fn with_board_idx(mut self, board_idx: usize) -> Self {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 146 |     fn with_group_idx(mut self, group_idx: usize) -> Self {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple associated items are never used
[INFO] [stdout]    --> src/main.rs:158:8
[INFO] [stdout]     |
[INFO] [stdout] 157 | impl Board {
[INFO] [stdout]     | ---------- associated items in this implementation
[INFO] [stdout] 158 |     fn new() -> Self {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 244 |     fn valid(&self) -> bool {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 264 |     fn solved(&self) -> bool {
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 277 |     fn rows() -> Vec<Vec<usize>> {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 293 |     fn columns() -> Vec<Vec<usize>> {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 309 |     fn boxes() -> Vec<Vec<usize>> {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 323 |     fn all_groups() -> Vec<Vec<usize>> {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 398 |     fn get_cells<'a, I>(&self, group: &'a I) -> HashSet<CellAndLoc>
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `name` is never used
[INFO] [stdout]    --> src/main.rs:435:8
[INFO] [stdout]     |
[INFO] [stdout] 430 | trait Strategy {
[INFO] [stdout]     |       -------- method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 435 |     fn name(&self) -> String;
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_strategies` is never used
[INFO] [stdout]    --> src/main.rs:442:4
[INFO] [stdout]     |
[INFO] [stdout] 442 | fn get_strategies() -> Vec<Box<dyn Strategy>> {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `NakedPair` is never constructed
[INFO] [stdout]  --> src/disjoint_subset.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct NakedPair;
[INFO] [stdout]   |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.99s
[INFO] running `Command { std: "docker" "inspect" "b4fcdd07eae16069d25cf1bed77e2927054dbb4880f7f521acc2f2162980667d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b4fcdd07eae16069d25cf1bed77e2927054dbb4880f7f521acc2f2162980667d", kill_on_drop: false }`
[INFO] [stdout] b4fcdd07eae16069d25cf1bed77e2927054dbb4880f7f521acc2f2162980667d
[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] a29974ed0a9c20d6e70394c8dab83d442188012a69bf8899f0884688d51bdf40
[INFO] running `Command { std: "docker" "start" "-a" "a29974ed0a9c20d6e70394c8dab83d442188012a69bf8899f0884688d51bdf40", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust-sudoko v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.88s
[INFO] running `Command { std: "docker" "inspect" "a29974ed0a9c20d6e70394c8dab83d442188012a69bf8899f0884688d51bdf40", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a29974ed0a9c20d6e70394c8dab83d442188012a69bf8899f0884688d51bdf40", kill_on_drop: false }`
[INFO] [stdout] a29974ed0a9c20d6e70394c8dab83d442188012a69bf8899f0884688d51bdf40
[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] 981224303cf8425fde7b0ae290abbac302b452a9d33f4be8449e034e403170c3
[INFO] running `Command { std: "docker" "start" "-a" "981224303cf8425fde7b0ae290abbac302b452a9d33f4be8449e034e403170c3", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/rust_sudoko-0f8ae0e680d925af)
[INFO] [stdout] 
[INFO] [stdout] running 22 tests
[INFO] [stdout] test tests::test_box_neighbors ... ok
[INFO] [stdout] test tests::test_boxes ... ok
[INFO] [stdout] test tests::test_cell_digits ... ok
[INFO] [stdout] test tests::test_cell_remove_to_solved ... ok
[INFO] [stdout] test tests::test_col_neighbors ... ok
[INFO] [stdout] test tests::test_columns ... ok
[INFO] [stdout] test tests::test_empty_board ... ok
[INFO] [stdout] test tests::test_empty_board_unsolved ... ok
[INFO] [stdout] test tests::test_cell_remove ... ok
[INFO] [stdout] test tests::test_loaded_board ... ok
[INFO] [stdout] test tests::test_cell_remove_from_solved ... ok
[INFO] [stdout] test tests::test_loaded_board_invalid ... ok
[INFO] [stdout] test tests::test_row_neighbors ... ok
[INFO] [stdout] test tests::test_get_cells ... ok
[INFO] [stdout] test tests::test_empty_board_valid ... ok
[INFO] [stdout] test tests::test_loaded_board_valid ... ok
[INFO] [stdout] test tests::test_empty_cell_create ... ok
[INFO] [stdout] test tests::test_cell_count ... ok
[INFO] [stdout] test tests::test_strategies_produce_valid_boards ... ok
[INFO] [stdout] test tests::test_rows ... ok
[INFO] [stdout] test tests::test_naked_pair ... ok
[INFO] [stdout] test tests::test_solved ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 22 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "981224303cf8425fde7b0ae290abbac302b452a9d33f4be8449e034e403170c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "981224303cf8425fde7b0ae290abbac302b452a9d33f4be8449e034e403170c3", kill_on_drop: false }`
[INFO] [stdout] 981224303cf8425fde7b0ae290abbac302b452a9d33f4be8449e034e403170c3
