Dec 12 23:37:37.340 INFO testing tomvidm/rust-sudoku-solver against try#aa49d8ef14939ddec0e34b346b60174a5673d48f for pr-56550
Dec 12 23:37:37.340 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-4/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-56550/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +aa49d8ef14939ddec0e34b346b60174a5673d48f-alt build --frozen" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 12 23:37:37.923 INFO [stdout] b118eda123c9fbee94e4bae87e0e04404ad52d944f4ca0332b86c8ed6f50f5ba
Dec 12 23:37:37.925 INFO running `"docker" "start" "-a" "b118eda123c9fbee94e4bae87e0e04404ad52d944f4ca0332b86c8ed6f50f5ba"`
Dec 12 23:37:39.342 INFO [stderr] usermod: no changes
Dec 12 23:37:39.519 INFO [stderr]    Compiling serde v1.0.73
Dec 12 23:37:39.541 INFO [stderr]    Compiling serde_derive v1.0.73
Dec 12 23:37:59.111 INFO [stderr]    Compiling serde_json v1.0.26
Dec 12 23:38:03.161 INFO [stderr]    Compiling sudoku v0.1.0 (/source)
Dec 12 23:38:03.563 INFO [stderr] warning: unused variable: `board`
Dec 12 23:38:03.563 INFO [stderr]   --> src/main.rs:10:9
Dec 12 23:38:03.563 INFO [stderr]    |
Dec 12 23:38:03.563 INFO [stderr] 10 |     let board = su::Board::new();
Dec 12 23:38:03.563 INFO [stderr]    |         ^^^^^ help: consider using `_board` instead
Dec 12 23:38:03.563 INFO [stderr]    |
Dec 12 23:38:03.563 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 12 23:38:03.563 INFO [stderr] 
Dec 12 23:38:03.563 INFO [stderr] warning: unused variable: `coord`
Dec 12 23:38:03.563 INFO [stderr]   --> src/su/board.rs:80:21
Dec 12 23:38:03.563 INFO [stderr]    |
Dec 12 23:38:03.563 INFO [stderr] 80 |                 let coord = Coord::new(r, c);
Dec 12 23:38:03.563 INFO [stderr]    |                     ^^^^^ help: consider using `_coord` instead
Dec 12 23:38:03.563 INFO [stderr] 
Dec 12 23:38:03.563 INFO [stderr] warning: unused variable: `old_entry`
Dec 12 23:38:03.563 INFO [stderr]    --> src/su/board.rs:174:17
Dec 12 23:38:03.563 INFO [stderr]     |
Dec 12 23:38:03.563 INFO [stderr] 174 |             let old_entry = Move::new_from_coord_and_value(coord, old_value);
Dec 12 23:38:03.563 INFO [stderr]     |                 ^^^^^^^^^ help: consider using `_old_entry` instead
Dec 12 23:38:03.563 INFO [stderr] 
Dec 12 23:38:03.563 INFO [stderr] warning: unused variable: `raw_board_struct`
Dec 12 23:38:03.563 INFO [stderr]   --> src/su/sugame.rs:31:13
Dec 12 23:38:03.563 INFO [stderr]    |
Dec 12 23:38:03.563 INFO [stderr] 31 |         let raw_board_struct = raw_board.clone();
Dec 12 23:38:03.563 INFO [stderr]    |             ^^^^^^^^^^^^^^^^ help: consider using `_raw_board_struct` instead
Dec 12 23:38:03.563 INFO [stderr] 
Dec 12 23:38:03.591 INFO [stderr] warning: field is never used: `data`
Dec 12 23:38:03.591 INFO [stderr]  --> src/su/sugame.rs:9:5
Dec 12 23:38:03.591 INFO [stderr]   |
Dec 12 23:38:03.591 INFO [stderr] 9 |     data: [[i8; 9]; 9]
Dec 12 23:38:03.591 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^
Dec 12 23:38:03.591 INFO [stderr]   |
Dec 12 23:38:03.591 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 12 23:38:03.591 INFO [stderr] 
Dec 12 23:38:03.591 INFO [stderr] warning: struct is never constructed: `Game`
Dec 12 23:38:03.591 INFO [stderr]   --> src/su/sugame.rs:12:1
Dec 12 23:38:03.591 INFO [stderr]    |
Dec 12 23:38:03.591 INFO [stderr] 12 | pub struct Game {
Dec 12 23:38:03.591 INFO [stderr]    | ^^^^^^^^^^^^^^^
Dec 12 23:38:03.591 INFO [stderr] 
Dec 12 23:38:03.591 INFO [stderr] warning: method is never used: `test_game`
Dec 12 23:38:03.591 INFO [stderr]   --> src/su/sugame.rs:17:5
Dec 12 23:38:03.591 INFO [stderr]    |
Dec 12 23:38:03.591 INFO [stderr] 17 |     fn test_game() -> Option<Game> {
Dec 12 23:38:03.591 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 12 23:38:03.591 INFO [stderr] 
Dec 12 23:38:03.939 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 24.55s
Dec 12 23:38:03.943 INFO [stderr] su: No module specific data is present
Dec 12 23:38:04.696 INFO running `"docker" "inspect" "b118eda123c9fbee94e4bae87e0e04404ad52d944f4ca0332b86c8ed6f50f5ba"`
Dec 12 23:38:05.038 INFO running `"docker" "rm" "-f" "b118eda123c9fbee94e4bae87e0e04404ad52d944f4ca0332b86c8ed6f50f5ba"`
Dec 12 23:38:05.359 INFO [stdout] b118eda123c9fbee94e4bae87e0e04404ad52d944f4ca0332b86c8ed6f50f5ba
Dec 12 23:38:05.359 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-4/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-56550/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +aa49d8ef14939ddec0e34b346b60174a5673d48f-alt test --frozen --no-run" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 12 23:38:05.906 INFO [stdout] 847af1ed8ac2be27926fb9839c3b818ee13360305596ed4eeed31b53e623d5f5
Dec 12 23:38:05.913 INFO running `"docker" "start" "-a" "847af1ed8ac2be27926fb9839c3b818ee13360305596ed4eeed31b53e623d5f5"`
Dec 12 23:38:06.611 INFO [stderr] usermod: no changes
Dec 12 23:38:06.678 INFO [stderr]    Compiling sudoku v0.1.0 (/source)
Dec 12 23:38:06.909 INFO [stderr] warning: unused variable: `board`
Dec 12 23:38:06.909 INFO [stderr]   --> src/main.rs:10:9
Dec 12 23:38:06.909 INFO [stderr]    |
Dec 12 23:38:06.909 INFO [stderr] 10 |     let board = su::Board::new();
Dec 12 23:38:06.909 INFO [stderr]    |         ^^^^^ help: consider using `_board` instead
Dec 12 23:38:06.909 INFO [stderr]    |
Dec 12 23:38:06.909 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 12 23:38:06.909 INFO [stderr] 
Dec 12 23:38:06.909 INFO [stderr] warning: unused variable: `board`
Dec 12 23:38:06.910 INFO [stderr]    --> src/su/board.rs:205:13
Dec 12 23:38:06.910 INFO [stderr]     |
Dec 12 23:38:06.910 INFO [stderr] 205 |     let mut board = Board::new_from_array(valid_raw_board);
Dec 12 23:38:06.910 INFO [stderr]     |             ^^^^^ help: consider using `_board` instead
Dec 12 23:38:06.910 INFO [stderr] 
Dec 12 23:38:06.910 INFO [stderr] warning: unused variable: `game`
Dec 12 23:38:06.910 INFO [stderr]   --> src/su/sugame.rs:49:9
Dec 12 23:38:06.910 INFO [stderr]    |
Dec 12 23:38:06.910 INFO [stderr] 49 |     let game = Game::test_game();
Dec 12 23:38:06.910 INFO [stderr]    |         ^^^^ help: consider using `_game` instead
Dec 12 23:38:06.910 INFO [stderr] 
Dec 12 23:38:06.910 INFO [stderr] warning: unused variable: `coord`
Dec 12 23:38:06.910 INFO [stderr]   --> src/su/board.rs:80:21
Dec 12 23:38:06.910 INFO [stderr]    |
Dec 12 23:38:06.910 INFO [stderr] 80 |                 let coord = Coord::new(r, c);
Dec 12 23:38:06.910 INFO [stderr]    |                     ^^^^^ help: consider using `_coord` instead
Dec 12 23:38:06.910 INFO [stderr] 
Dec 12 23:38:06.910 INFO [stderr] warning: unused variable: `old_entry`
Dec 12 23:38:06.910 INFO [stderr]    --> src/su/board.rs:174:17
Dec 12 23:38:06.910 INFO [stderr]     |
Dec 12 23:38:06.910 INFO [stderr] 174 |             let old_entry = Move::new_from_coord_and_value(coord, old_value);
Dec 12 23:38:06.910 INFO [stderr]     |                 ^^^^^^^^^ help: consider using `_old_entry` instead
Dec 12 23:38:06.910 INFO [stderr] 
Dec 12 23:38:06.910 INFO [stderr] warning: unused variable: `raw_board_struct`
Dec 12 23:38:06.910 INFO [stderr]   --> src/su/sugame.rs:31:13
Dec 12 23:38:06.910 INFO [stderr]    |
Dec 12 23:38:06.910 INFO [stderr] 31 |         let raw_board_struct = raw_board.clone();
Dec 12 23:38:06.910 INFO [stderr]    |             ^^^^^^^^^^^^^^^^ help: consider using `_raw_board_struct` instead
Dec 12 23:38:06.910 INFO [stderr] 
Dec 12 23:38:06.921 INFO [stderr] warning: variable does not need to be mutable
Dec 12 23:38:06.921 INFO [stderr]    --> src/su/board.rs:205:9
Dec 12 23:38:06.921 INFO [stderr]     |
Dec 12 23:38:06.921 INFO [stderr] 205 |     let mut board = Board::new_from_array(valid_raw_board);
Dec 12 23:38:06.921 INFO [stderr]     |         ----^^^^^
Dec 12 23:38:06.921 INFO [stderr]     |         |
Dec 12 23:38:06.921 INFO [stderr]     |         help: remove this `mut`
Dec 12 23:38:06.921 INFO [stderr]     |
Dec 12 23:38:06.921 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 12 23:38:06.921 INFO [stderr] 
Dec 12 23:38:06.980 INFO [stderr] warning: field is never used: `data`
Dec 12 23:38:06.980 INFO [stderr]  --> src/su/sugame.rs:9:5
Dec 12 23:38:06.980 INFO [stderr]   |
Dec 12 23:38:06.980 INFO [stderr] 9 |     data: [[i8; 9]; 9]
Dec 12 23:38:06.980 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^
Dec 12 23:38:06.980 INFO [stderr]   |
Dec 12 23:38:06.980 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 12 23:38:06.980 INFO [stderr] 
Dec 12 23:38:06.980 INFO [stderr] warning: field is never used: `board`
Dec 12 23:38:06.980 INFO [stderr]   --> src/su/sugame.rs:13:5
Dec 12 23:38:06.980 INFO [stderr]    |
Dec 12 23:38:06.980 INFO [stderr] 13 |     board: Board,
Dec 12 23:38:06.980 INFO [stderr]    |     ^^^^^^^^^^^^
Dec 12 23:38:06.980 INFO [stderr] 
Dec 12 23:38:07.457 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.83s
Dec 12 23:38:07.457 INFO [stderr] su: No module specific data is present
Dec 12 23:38:07.931 INFO running `"docker" "inspect" "847af1ed8ac2be27926fb9839c3b818ee13360305596ed4eeed31b53e623d5f5"`
Dec 12 23:38:08.373 INFO running `"docker" "rm" "-f" "847af1ed8ac2be27926fb9839c3b818ee13360305596ed4eeed31b53e623d5f5"`
Dec 12 23:38:08.683 INFO [stdout] 847af1ed8ac2be27926fb9839c3b818ee13360305596ed4eeed31b53e623d5f5