Dec 12 23:37:45.392 INFO testing tomvidm/rust-sudoku-solver against master#bd47d6825bf4090517549d33cfef10d3300b4a75 for pr-56550
Dec 12 23:37:45.392 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-0/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/pr-56550/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/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 +bd47d6825bf4090517549d33cfef10d3300b4a75-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 23:37:45.839 INFO [stdout] 7867e1ebd7bbfe1f5e18b2b0dcc5082bb506374547716027138665c616128afa
Dec 12 23:37:45.840 INFO running `"docker" "start" "-a" "7867e1ebd7bbfe1f5e18b2b0dcc5082bb506374547716027138665c616128afa"`
Dec 12 23:37:47.209 INFO [stderr] usermod: no changes
Dec 12 23:37:47.323 INFO [stderr]    Compiling serde v1.0.73
Dec 12 23:37:47.323 INFO [stderr]    Compiling ryu v0.2.4
Dec 12 23:37:47.323 INFO [stderr]    Compiling serde_derive v1.0.73
Dec 12 23:38:06.367 INFO [stderr]    Compiling serde_json v1.0.26
Dec 12 23:38:09.832 INFO [stderr]    Compiling sudoku v0.1.0 (/source)
Dec 12 23:38:10.155 INFO [stderr] warning: unused variable: `board`
Dec 12 23:38:10.155 INFO [stderr]   --> src/main.rs:10:9
Dec 12 23:38:10.155 INFO [stderr]    |
Dec 12 23:38:10.155 INFO [stderr] 10 |     let board = su::Board::new();
Dec 12 23:38:10.155 INFO [stderr]    |         ^^^^^ help: consider using `_board` instead
Dec 12 23:38:10.155 INFO [stderr]    |
Dec 12 23:38:10.155 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 12 23:38:10.155 INFO [stderr] 
Dec 12 23:38:10.155 INFO [stderr] warning: unused variable: `coord`
Dec 12 23:38:10.155 INFO [stderr]   --> src/su/board.rs:80:21
Dec 12 23:38:10.155 INFO [stderr]    |
Dec 12 23:38:10.155 INFO [stderr] 80 |                 let coord = Coord::new(r, c);
Dec 12 23:38:10.155 INFO [stderr]    |                     ^^^^^ help: consider using `_coord` instead
Dec 12 23:38:10.155 INFO [stderr] 
Dec 12 23:38:10.155 INFO [stderr] warning: unused variable: `old_entry`
Dec 12 23:38:10.155 INFO [stderr]    --> src/su/board.rs:174:17
Dec 12 23:38:10.155 INFO [stderr]     |
Dec 12 23:38:10.155 INFO [stderr] 174 |             let old_entry = Move::new_from_coord_and_value(coord, old_value);
Dec 12 23:38:10.155 INFO [stderr]     |                 ^^^^^^^^^ help: consider using `_old_entry` instead
Dec 12 23:38:10.155 INFO [stderr] 
Dec 12 23:38:10.155 INFO [stderr] warning: unused variable: `raw_board_struct`
Dec 12 23:38:10.155 INFO [stderr]   --> src/su/sugame.rs:31:13
Dec 12 23:38:10.155 INFO [stderr]    |
Dec 12 23:38:10.155 INFO [stderr] 31 |         let raw_board_struct = raw_board.clone();
Dec 12 23:38:10.155 INFO [stderr]    |             ^^^^^^^^^^^^^^^^ help: consider using `_raw_board_struct` instead
Dec 12 23:38:10.155 INFO [stderr] 
Dec 12 23:38:10.195 INFO [stderr] warning: field is never used: `data`
Dec 12 23:38:10.195 INFO [stderr]  --> src/su/sugame.rs:9:5
Dec 12 23:38:10.195 INFO [stderr]   |
Dec 12 23:38:10.195 INFO [stderr] 9 |     data: [[i8; 9]; 9]
Dec 12 23:38:10.195 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^
Dec 12 23:38:10.195 INFO [stderr]   |
Dec 12 23:38:10.195 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 12 23:38:10.195 INFO [stderr] 
Dec 12 23:38:10.195 INFO [stderr] warning: struct is never constructed: `Game`
Dec 12 23:38:10.195 INFO [stderr]   --> src/su/sugame.rs:12:1
Dec 12 23:38:10.195 INFO [stderr]    |
Dec 12 23:38:10.195 INFO [stderr] 12 | pub struct Game {
Dec 12 23:38:10.195 INFO [stderr]    | ^^^^^^^^^^^^^^^
Dec 12 23:38:10.195 INFO [stderr] 
Dec 12 23:38:10.195 INFO [stderr] warning: method is never used: `test_game`
Dec 12 23:38:10.195 INFO [stderr]   --> src/su/sugame.rs:17:5
Dec 12 23:38:10.195 INFO [stderr]    |
Dec 12 23:38:10.195 INFO [stderr] 17 |     fn test_game() -> Option<Game> {
Dec 12 23:38:10.195 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 12 23:38:10.195 INFO [stderr] 
Dec 12 23:38:10.447 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 23.21s
Dec 12 23:38:10.455 INFO [stderr] su: No module specific data is present
Dec 12 23:38:11.073 INFO running `"docker" "inspect" "7867e1ebd7bbfe1f5e18b2b0dcc5082bb506374547716027138665c616128afa"`
Dec 12 23:38:11.293 INFO running `"docker" "rm" "-f" "7867e1ebd7bbfe1f5e18b2b0dcc5082bb506374547716027138665c616128afa"`
Dec 12 23:38:11.587 INFO [stdout] 7867e1ebd7bbfe1f5e18b2b0dcc5082bb506374547716027138665c616128afa
Dec 12 23:38:11.590 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-0/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/pr-56550/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/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 +bd47d6825bf4090517549d33cfef10d3300b4a75-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 23:38:12.046 INFO [stdout] 7842ed6a531a04a5b3d3208181b195b76c93760e8cf7d7a0c0f50667d61ac061
Dec 12 23:38:12.051 INFO running `"docker" "start" "-a" "7842ed6a531a04a5b3d3208181b195b76c93760e8cf7d7a0c0f50667d61ac061"`
Dec 12 23:38:13.263 INFO [stderr] usermod: no changes
Dec 12 23:38:13.351 INFO [stderr]    Compiling sudoku v0.1.0 (/source)
Dec 12 23:38:13.731 INFO [stderr] warning: unused variable: `board`
Dec 12 23:38:13.731 INFO [stderr]   --> src/main.rs:10:9
Dec 12 23:38:13.731 INFO [stderr]    |
Dec 12 23:38:13.731 INFO [stderr] 10 |     let board = su::Board::new();
Dec 12 23:38:13.731 INFO [stderr]    |         ^^^^^ help: consider using `_board` instead
Dec 12 23:38:13.731 INFO [stderr]    |
Dec 12 23:38:13.731 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 12 23:38:13.731 INFO [stderr] 
Dec 12 23:38:13.731 INFO [stderr] warning: unused variable: `board`
Dec 12 23:38:13.731 INFO [stderr]    --> src/su/board.rs:205:13
Dec 12 23:38:13.731 INFO [stderr]     |
Dec 12 23:38:13.731 INFO [stderr] 205 |     let mut board = Board::new_from_array(valid_raw_board);
Dec 12 23:38:13.731 INFO [stderr]     |             ^^^^^ help: consider using `_board` instead
Dec 12 23:38:13.731 INFO [stderr] 
Dec 12 23:38:13.731 INFO [stderr] warning: unused variable: `game`
Dec 12 23:38:13.731 INFO [stderr]   --> src/su/sugame.rs:49:9
Dec 12 23:38:13.731 INFO [stderr]    |
Dec 12 23:38:13.731 INFO [stderr] 49 |     let game = Game::test_game();
Dec 12 23:38:13.731 INFO [stderr]    |         ^^^^ help: consider using `_game` instead
Dec 12 23:38:13.731 INFO [stderr] 
Dec 12 23:38:13.731 INFO [stderr] warning: unused variable: `coord`
Dec 12 23:38:13.731 INFO [stderr]   --> src/su/board.rs:80:21
Dec 12 23:38:13.731 INFO [stderr]    |
Dec 12 23:38:13.731 INFO [stderr] 80 |                 let coord = Coord::new(r, c);
Dec 12 23:38:13.731 INFO [stderr]    |                     ^^^^^ help: consider using `_coord` instead
Dec 12 23:38:13.731 INFO [stderr] 
Dec 12 23:38:13.731 INFO [stderr] warning: unused variable: `old_entry`
Dec 12 23:38:13.731 INFO [stderr]    --> src/su/board.rs:174:17
Dec 12 23:38:13.731 INFO [stderr]     |
Dec 12 23:38:13.731 INFO [stderr] 174 |             let old_entry = Move::new_from_coord_and_value(coord, old_value);
Dec 12 23:38:13.731 INFO [stderr]     |                 ^^^^^^^^^ help: consider using `_old_entry` instead
Dec 12 23:38:13.731 INFO [stderr] 
Dec 12 23:38:13.731 INFO [stderr] warning: unused variable: `raw_board_struct`
Dec 12 23:38:13.731 INFO [stderr]   --> src/su/sugame.rs:31:13
Dec 12 23:38:13.731 INFO [stderr]    |
Dec 12 23:38:13.731 INFO [stderr] 31 |         let raw_board_struct = raw_board.clone();
Dec 12 23:38:13.731 INFO [stderr]    |             ^^^^^^^^^^^^^^^^ help: consider using `_raw_board_struct` instead
Dec 12 23:38:13.731 INFO [stderr] 
Dec 12 23:38:13.747 INFO [stderr] warning: variable does not need to be mutable
Dec 12 23:38:13.747 INFO [stderr]    --> src/su/board.rs:205:9
Dec 12 23:38:13.747 INFO [stderr]     |
Dec 12 23:38:13.747 INFO [stderr] 205 |     let mut board = Board::new_from_array(valid_raw_board);
Dec 12 23:38:13.747 INFO [stderr]     |         ----^^^^^
Dec 12 23:38:13.747 INFO [stderr]     |         |
Dec 12 23:38:13.747 INFO [stderr]     |         help: remove this `mut`
Dec 12 23:38:13.747 INFO [stderr]     |
Dec 12 23:38:13.747 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 12 23:38:13.747 INFO [stderr] 
Dec 12 23:38:13.779 INFO [stderr] warning: field is never used: `data`
Dec 12 23:38:13.779 INFO [stderr]  --> src/su/sugame.rs:9:5
Dec 12 23:38:13.779 INFO [stderr]   |
Dec 12 23:38:13.779 INFO [stderr] 9 |     data: [[i8; 9]; 9]
Dec 12 23:38:13.779 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^
Dec 12 23:38:13.779 INFO [stderr]   |
Dec 12 23:38:13.779 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 12 23:38:13.779 INFO [stderr] 
Dec 12 23:38:13.779 INFO [stderr] warning: field is never used: `board`
Dec 12 23:38:13.779 INFO [stderr]   --> src/su/sugame.rs:13:5
Dec 12 23:38:13.779 INFO [stderr]    |
Dec 12 23:38:13.779 INFO [stderr] 13 |     board: Board,
Dec 12 23:38:13.779 INFO [stderr]    |     ^^^^^^^^^^^^
Dec 12 23:38:13.779 INFO [stderr] 
Dec 12 23:38:14.469 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.17s
Dec 12 23:38:14.483 INFO [stderr] su: No module specific data is present
Dec 12 23:38:15.543 INFO running `"docker" "inspect" "7842ed6a531a04a5b3d3208181b195b76c93760e8cf7d7a0c0f50667d61ac061"`
Dec 12 23:38:15.879 INFO running `"docker" "rm" "-f" "7842ed6a531a04a5b3d3208181b195b76c93760e8cf7d7a0c0f50667d61ac061"`
Dec 12 23:38:16.198 INFO [stdout] 7842ed6a531a04a5b3d3208181b195b76c93760e8cf7d7a0c0f50667d61ac061