Nov 27 18:23:12.965 INFO checking tomvidm/rust-sudoku-solver against try#db42d4dad33013eba11ef37342ad9f614e5652b8 for pr-56074
Nov 27 18:23:12.966 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56074/worker-2/try#db42d4dad33013eba11ef37342ad9f614e5652b8:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/pr-56074/try#db42d4dad33013eba11ef37342ad9f614e5652b8:/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 +db42d4dad33013eba11ef37342ad9f614e5652b8-alt check --frozen --all --all-targets" "-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"`
Nov 27 18:23:13.506 INFO [stdout] f51915184e3352afdd299764a10ca28916e709a9f20a633cd62388b89b4cb4f6
Nov 27 18:23:13.508 INFO running `"docker" "start" "-a" "f51915184e3352afdd299764a10ca28916e709a9f20a633cd62388b89b4cb4f6"`
Nov 27 18:23:15.503 INFO [stderr] usermod: no changes
Nov 27 18:23:15.608 INFO [stderr]    Compiling serde v1.0.73
Nov 27 18:23:15.608 INFO [stderr]     Checking ryu v0.2.4
Nov 27 18:23:15.614 INFO [stderr]    Compiling quote v0.6.8
Nov 27 18:23:18.729 INFO [stderr]    Compiling syn v0.14.9
Nov 27 18:23:33.372 INFO [stderr]    Compiling serde_derive v1.0.73
Nov 27 18:23:42.211 INFO [stderr]     Checking serde_json v1.0.26
Nov 27 18:23:54.020 INFO [stderr]     Checking sudoku v0.1.0 (/source)
Nov 27 18:23:54.596 INFO [stderr] warning: unused variable: `board`
Nov 27 18:23:54.597 INFO [stderr]   --> src/main.rs:10:9
Nov 27 18:23:54.598 INFO [stderr]    |
Nov 27 18:23:54.598 INFO [stderr] 10 |     let board = su::Board::new();
Nov 27 18:23:54.599 INFO [stderr]    |         ^^^^^ help: consider using `_board` instead
Nov 27 18:23:54.600 INFO [stderr]    |
Nov 27 18:23:54.600 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Nov 27 18:23:54.601 INFO [stderr] 
Nov 27 18:23:54.601 INFO [stderr] warning: unused variable: `board`
Nov 27 18:23:54.602 INFO [stderr]    --> src/su/board.rs:205:13
Nov 27 18:23:54.602 INFO [stderr]     |
Nov 27 18:23:54.603 INFO [stderr] 205 |     let mut board = Board::new_from_array(valid_raw_board);
Nov 27 18:23:54.603 INFO [stderr]     |             ^^^^^ help: consider using `_board` instead
Nov 27 18:23:54.604 INFO [stderr] 
Nov 27 18:23:54.604 INFO [stderr] warning: unused variable: `game`
Nov 27 18:23:54.605 INFO [stderr]   --> src/su/sugame.rs:49:9
Nov 27 18:23:54.606 INFO [stderr]    |
Nov 27 18:23:54.606 INFO [stderr] 49 |     let game = Game::test_game();
Nov 27 18:23:54.607 INFO [stderr]    |         ^^^^ help: consider using `_game` instead
Nov 27 18:23:54.607 INFO [stderr] 
Nov 27 18:23:54.608 INFO [stderr] warning: unused variable: `coord`
Nov 27 18:23:54.608 INFO [stderr]   --> src/su/board.rs:80:21
Nov 27 18:23:54.608 INFO [stderr]    |
Nov 27 18:23:54.608 INFO [stderr] 80 |                 let coord = Coord::new(r, c);
Nov 27 18:23:54.608 INFO [stderr]    |                     ^^^^^ help: consider using `_coord` instead
Nov 27 18:23:54.608 INFO [stderr] 
Nov 27 18:23:54.608 INFO [stderr] warning: unused variable: `old_entry`
Nov 27 18:23:54.608 INFO [stderr]    --> src/su/board.rs:174:17
Nov 27 18:23:54.608 INFO [stderr]     |
Nov 27 18:23:54.609 INFO [stderr] 174 |             let old_entry = Move::new_from_coord_and_value(coord, old_value);
Nov 27 18:23:54.609 INFO [stderr]     |                 ^^^^^^^^^ help: consider using `_old_entry` instead
Nov 27 18:23:54.609 INFO [stderr] 
Nov 27 18:23:54.609 INFO [stderr] warning: unused variable: `raw_board_struct`
Nov 27 18:23:54.609 INFO [stderr]   --> src/su/sugame.rs:31:13
Nov 27 18:23:54.609 INFO [stderr]    |
Nov 27 18:23:54.609 INFO [stderr] 31 |         let raw_board_struct = raw_board.clone();
Nov 27 18:23:54.609 INFO [stderr]    |             ^^^^^^^^^^^^^^^^ help: consider using `_raw_board_struct` instead
Nov 27 18:23:54.609 INFO [stderr] 
Nov 27 18:23:54.644 INFO [stderr] warning: variable does not need to be mutable
Nov 27 18:23:54.645 INFO [stderr]    --> src/su/board.rs:205:9
Nov 27 18:23:54.646 INFO [stderr]     |
Nov 27 18:23:54.646 INFO [stderr] 205 |     let mut board = Board::new_from_array(valid_raw_board);
Nov 27 18:23:54.647 INFO [stderr]     |         ----^^^^^
Nov 27 18:23:54.647 INFO [stderr]     |         |
Nov 27 18:23:54.648 INFO [stderr]     |         help: remove this `mut`
Nov 27 18:23:54.649 INFO [stderr]     |
Nov 27 18:23:54.649 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Nov 27 18:23:54.650 INFO [stderr] 
Nov 27 18:23:54.668 INFO [stderr] warning: unused variable: `board`
Nov 27 18:23:54.668 INFO [stderr]   --> src/main.rs:10:9
Nov 27 18:23:54.668 INFO [stderr]    |
Nov 27 18:23:54.668 INFO [stderr] 10 |     let board = su::Board::new();
Nov 27 18:23:54.668 INFO [stderr]    |         ^^^^^ help: consider using `_board` instead
Nov 27 18:23:54.668 INFO [stderr]    |
Nov 27 18:23:54.668 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Nov 27 18:23:54.668 INFO [stderr] 
Nov 27 18:23:54.668 INFO [stderr] warning: unused variable: `coord`
Nov 27 18:23:54.670 INFO [stderr]   --> src/su/board.rs:80:21
Nov 27 18:23:54.670 INFO [stderr]    |
Nov 27 18:23:54.670 INFO [stderr] 80 |                 let coord = Coord::new(r, c);
Nov 27 18:23:54.670 INFO [stderr]    |                     ^^^^^ help: consider using `_coord` instead
Nov 27 18:23:54.670 INFO [stderr] 
Nov 27 18:23:54.670 INFO [stderr] warning: unused variable: `old_entry`
Nov 27 18:23:54.670 INFO [stderr]    --> src/su/board.rs:174:17
Nov 27 18:23:54.670 INFO [stderr]     |
Nov 27 18:23:54.670 INFO [stderr] 174 |             let old_entry = Move::new_from_coord_and_value(coord, old_value);
Nov 27 18:23:54.670 INFO [stderr]     |                 ^^^^^^^^^ help: consider using `_old_entry` instead
Nov 27 18:23:54.670 INFO [stderr] 
Nov 27 18:23:54.670 INFO [stderr] warning: unused variable: `raw_board_struct`
Nov 27 18:23:54.670 INFO [stderr]   --> src/su/sugame.rs:31:13
Nov 27 18:23:54.670 INFO [stderr]    |
Nov 27 18:23:54.670 INFO [stderr] 31 |         let raw_board_struct = raw_board.clone();
Nov 27 18:23:54.670 INFO [stderr]    |             ^^^^^^^^^^^^^^^^ help: consider using `_raw_board_struct` instead
Nov 27 18:23:54.670 INFO [stderr] 
Nov 27 18:23:54.712 INFO [stderr] warning: field is never used: `data`
Nov 27 18:23:54.713 INFO [stderr]  --> src/su/sugame.rs:9:5
Nov 27 18:23:54.713 INFO [stderr]   |
Nov 27 18:23:54.714 INFO [stderr] 9 |     data: [[i8; 9]; 9]
Nov 27 18:23:54.714 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^
Nov 27 18:23:54.715 INFO [stderr]   |
Nov 27 18:23:54.715 INFO [stderr]   = note: #[warn(dead_code)] on by default
Nov 27 18:23:54.716 INFO [stderr] 
Nov 27 18:23:54.716 INFO [stderr] warning: field is never used: `board`
Nov 27 18:23:54.717 INFO [stderr]   --> src/su/sugame.rs:13:5
Nov 27 18:23:54.717 INFO [stderr]    |
Nov 27 18:23:54.718 INFO [stderr] 13 |     board: Board,
Nov 27 18:23:54.719 INFO [stderr]    |     ^^^^^^^^^^^^
Nov 27 18:23:54.719 INFO [stderr] 
Nov 27 18:23:54.779 INFO [stderr] warning: field is never used: `data`
Nov 27 18:23:54.779 INFO [stderr]  --> src/su/sugame.rs:9:5
Nov 27 18:23:54.779 INFO [stderr]   |
Nov 27 18:23:54.779 INFO [stderr] 9 |     data: [[i8; 9]; 9]
Nov 27 18:23:54.779 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^
Nov 27 18:23:54.779 INFO [stderr]   |
Nov 27 18:23:54.779 INFO [stderr]   = note: #[warn(dead_code)] on by default
Nov 27 18:23:54.779 INFO [stderr] 
Nov 27 18:23:54.779 INFO [stderr] warning: struct is never constructed: `Game`
Nov 27 18:23:54.779 INFO [stderr]   --> src/su/sugame.rs:12:1
Nov 27 18:23:54.779 INFO [stderr]    |
Nov 27 18:23:54.779 INFO [stderr] 12 | pub struct Game {
Nov 27 18:23:54.779 INFO [stderr]    | ^^^^^^^^^^^^^^^
Nov 27 18:23:54.779 INFO [stderr] 
Nov 27 18:23:54.779 INFO [stderr] warning: method is never used: `test_game`
Nov 27 18:23:54.779 INFO [stderr]   --> src/su/sugame.rs:17:5
Nov 27 18:23:54.779 INFO [stderr]    |
Nov 27 18:23:54.779 INFO [stderr] 17 |     fn test_game() -> Option<Game> {
Nov 27 18:23:54.779 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 27 18:23:54.779 INFO [stderr] 
Nov 27 18:23:54.828 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 39.30s
Nov 27 18:23:54.833 INFO [stderr] su: No module specific data is present
Nov 27 18:23:56.130 INFO running `"docker" "inspect" "f51915184e3352afdd299764a10ca28916e709a9f20a633cd62388b89b4cb4f6"`
Nov 27 18:23:56.441 INFO running `"docker" "rm" "-f" "f51915184e3352afdd299764a10ca28916e709a9f20a633cd62388b89b4cb4f6"`
Nov 27 18:23:56.729 INFO [stdout] f51915184e3352afdd299764a10ca28916e709a9f20a633cd62388b89b4cb4f6