Dec 19 06:49:32.700 INFO checking tomvidm/rust-sudoku-solver against try#e70472fc501b855c9080f3772432c10fe20b8866 for pr-56955
Dec 19 06:49:32.700 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-4/try#e70472fc501b855c9080f3772432c10fe20b8866:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/try#e70472fc501b855c9080f3772432c10fe20b8866/gh/tomvidm/rust-sudoku-solver:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+e70472fc501b855c9080f3772432c10fe20b8866-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 06:49:33.236 INFO [stdout] 54f9467bdbb8d8931bde400d6b0a4fe8f4838cb23b4397e692c7956393d08ab3
Dec 19 06:49:33.242 INFO running `"docker" "start" "-a" "54f9467bdbb8d8931bde400d6b0a4fe8f4838cb23b4397e692c7956393d08ab3"`
Dec 19 06:49:35.003 INFO [stderr]    Compiling serde v1.0.73
Dec 19 06:49:35.003 INFO [stderr]    Compiling ryu v0.2.4
Dec 19 06:49:35.020 INFO [stderr]    Compiling quote v0.6.8
Dec 19 06:49:36.608 INFO [stderr]    Compiling syn v0.14.9
Dec 19 06:49:51.878 INFO [stderr]    Compiling serde_derive v1.0.73
Dec 19 06:49:59.641 INFO [stderr]     Checking serde_json v1.0.26
Dec 19 06:50:11.286 INFO [stderr]     Checking sudoku v0.1.0 (/opt/crater/workdir)
Dec 19 06:50:11.722 INFO [stderr] warning: unused variable: `board`
Dec 19 06:50:11.722 INFO [stderr]   --> src/main.rs:10:9
Dec 19 06:50:11.722 INFO [stderr]    |
Dec 19 06:50:11.723 INFO [stderr] 10 |     let board = su::Board::new();
Dec 19 06:50:11.723 INFO [stderr]    |         ^^^^^ help: consider using `_board` instead
Dec 19 06:50:11.723 INFO [stderr]    |
Dec 19 06:50:11.723 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 19 06:50:11.724 INFO [stderr] 
Dec 19 06:50:11.724 INFO [stderr] warning: unused variable: `coord`
Dec 19 06:50:11.724 INFO [stderr]   --> src/su/board.rs:80:21
Dec 19 06:50:11.725 INFO [stderr]    |
Dec 19 06:50:11.725 INFO [stderr] 80 |                 let coord = Coord::new(r, c);
Dec 19 06:50:11.725 INFO [stderr]    |                     ^^^^^ help: consider using `_coord` instead
Dec 19 06:50:11.725 INFO [stderr] 
Dec 19 06:50:11.726 INFO [stderr] warning: unused variable: `old_entry`
Dec 19 06:50:11.726 INFO [stderr]    --> src/su/board.rs:174:17
Dec 19 06:50:11.726 INFO [stderr]     |
Dec 19 06:50:11.727 INFO [stderr] 174 |             let old_entry = Move::new_from_coord_and_value(coord, old_value);
Dec 19 06:50:11.727 INFO [stderr]     |                 ^^^^^^^^^ help: consider using `_old_entry` instead
Dec 19 06:50:11.727 INFO [stderr] 
Dec 19 06:50:11.728 INFO [stderr] warning: unused variable: `raw_board_struct`
Dec 19 06:50:11.728 INFO [stderr]   --> src/su/sugame.rs:31:13
Dec 19 06:50:11.728 INFO [stderr]    |
Dec 19 06:50:11.728 INFO [stderr] 31 |         let raw_board_struct = raw_board.clone();
Dec 19 06:50:11.729 INFO [stderr]    |             ^^^^^^^^^^^^^^^^ help: consider using `_raw_board_struct` instead
Dec 19 06:50:11.729 INFO [stderr] 
Dec 19 06:50:11.788 INFO [stderr] warning: unused variable: `board`
Dec 19 06:50:11.789 INFO [stderr]   --> src/main.rs:10:9
Dec 19 06:50:11.789 INFO [stderr]    |
Dec 19 06:50:11.789 INFO [stderr] 10 |     let board = su::Board::new();
Dec 19 06:50:11.789 INFO [stderr]    |         ^^^^^ help: consider using `_board` instead
Dec 19 06:50:11.790 INFO [stderr]    |
Dec 19 06:50:11.790 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 19 06:50:11.790 INFO [stderr] 
Dec 19 06:50:11.790 INFO [stderr] warning: unused variable: `board`
Dec 19 06:50:11.791 INFO [stderr]    --> src/su/board.rs:205:13
Dec 19 06:50:11.791 INFO [stderr]     |
Dec 19 06:50:11.791 INFO [stderr] 205 |     let mut board = Board::new_from_array(valid_raw_board);
Dec 19 06:50:11.791 INFO [stderr]     |             ^^^^^ help: consider using `_board` instead
Dec 19 06:50:11.792 INFO [stderr] 
Dec 19 06:50:11.792 INFO [stderr] warning: unused variable: `game`
Dec 19 06:50:11.792 INFO [stderr]   --> src/su/sugame.rs:49:9
Dec 19 06:50:11.792 INFO [stderr]    |
Dec 19 06:50:11.793 INFO [stderr] 49 |     let game = Game::test_game();
Dec 19 06:50:11.793 INFO [stderr]    |         ^^^^ help: consider using `_game` instead
Dec 19 06:50:11.793 INFO [stderr] 
Dec 19 06:50:11.793 INFO [stderr] warning: unused variable: `coord`
Dec 19 06:50:11.793 INFO [stderr]   --> src/su/board.rs:80:21
Dec 19 06:50:11.794 INFO [stderr]    |
Dec 19 06:50:11.794 INFO [stderr] 80 |                 let coord = Coord::new(r, c);
Dec 19 06:50:11.794 INFO [stderr]    |                     ^^^^^ help: consider using `_coord` instead
Dec 19 06:50:11.794 INFO [stderr] 
Dec 19 06:50:11.794 INFO [stderr] warning: unused variable: `old_entry`
Dec 19 06:50:11.795 INFO [stderr]    --> src/su/board.rs:174:17
Dec 19 06:50:11.795 INFO [stderr]     |
Dec 19 06:50:11.795 INFO [stderr] 174 |             let old_entry = Move::new_from_coord_and_value(coord, old_value);
Dec 19 06:50:11.795 INFO [stderr]     |                 ^^^^^^^^^ help: consider using `_old_entry` instead
Dec 19 06:50:11.795 INFO [stderr] 
Dec 19 06:50:11.796 INFO [stderr] warning: unused variable: `raw_board_struct`
Dec 19 06:50:11.796 INFO [stderr]   --> src/su/sugame.rs:31:13
Dec 19 06:50:11.796 INFO [stderr]    |
Dec 19 06:50:11.796 INFO [stderr] 31 |         let raw_board_struct = raw_board.clone();
Dec 19 06:50:11.797 INFO [stderr]    |             ^^^^^^^^^^^^^^^^ help: consider using `_raw_board_struct` instead
Dec 19 06:50:11.797 INFO [stderr] 
Dec 19 06:50:11.812 INFO [stderr] warning: variable does not need to be mutable
Dec 19 06:50:11.813 INFO [stderr]    --> src/su/board.rs:205:9
Dec 19 06:50:11.813 INFO [stderr]     |
Dec 19 06:50:11.813 INFO [stderr] 205 |     let mut board = Board::new_from_array(valid_raw_board);
Dec 19 06:50:11.813 INFO [stderr]     |         ----^^^^^
Dec 19 06:50:11.813 INFO [stderr]     |         |
Dec 19 06:50:11.813 INFO [stderr]     |         help: remove this `mut`
Dec 19 06:50:11.813 INFO [stderr]     |
Dec 19 06:50:11.813 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 19 06:50:11.813 INFO [stderr] 
Dec 19 06:50:11.815 INFO [stderr] warning: field is never used: `data`
Dec 19 06:50:11.815 INFO [stderr]  --> src/su/sugame.rs:9:5
Dec 19 06:50:11.815 INFO [stderr]   |
Dec 19 06:50:11.815 INFO [stderr] 9 |     data: [[i8; 9]; 9]
Dec 19 06:50:11.815 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^
Dec 19 06:50:11.815 INFO [stderr]   |
Dec 19 06:50:11.815 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 19 06:50:11.815 INFO [stderr] 
Dec 19 06:50:11.815 INFO [stderr] warning: struct is never constructed: `Game`
Dec 19 06:50:11.815 INFO [stderr]   --> src/su/sugame.rs:12:1
Dec 19 06:50:11.815 INFO [stderr]    |
Dec 19 06:50:11.815 INFO [stderr] 12 | pub struct Game {
Dec 19 06:50:11.815 INFO [stderr]    | ^^^^^^^^^^^^^^^
Dec 19 06:50:11.815 INFO [stderr] 
Dec 19 06:50:11.815 INFO [stderr] warning: method is never used: `test_game`
Dec 19 06:50:11.815 INFO [stderr]   --> src/su/sugame.rs:17:5
Dec 19 06:50:11.815 INFO [stderr]    |
Dec 19 06:50:11.815 INFO [stderr] 17 |     fn test_game() -> Option<Game> {
Dec 19 06:50:11.815 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 06:50:11.815 INFO [stderr] 
Dec 19 06:50:11.896 INFO [stderr] warning: field is never used: `data`
Dec 19 06:50:11.896 INFO [stderr]  --> src/su/sugame.rs:9:5
Dec 19 06:50:11.896 INFO [stderr]   |
Dec 19 06:50:11.896 INFO [stderr] 9 |     data: [[i8; 9]; 9]
Dec 19 06:50:11.896 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^
Dec 19 06:50:11.896 INFO [stderr]   |
Dec 19 06:50:11.896 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 19 06:50:11.896 INFO [stderr] 
Dec 19 06:50:11.897 INFO [stderr] warning: field is never used: `board`
Dec 19 06:50:11.897 INFO [stderr]   --> src/su/sugame.rs:13:5
Dec 19 06:50:11.897 INFO [stderr]    |
Dec 19 06:50:11.897 INFO [stderr] 13 |     board: Board,
Dec 19 06:50:11.897 INFO [stderr]    |     ^^^^^^^^^^^^
Dec 19 06:50:11.897 INFO [stderr] 
Dec 19 06:50:11.925 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 36.97s
Dec 19 06:50:13.911 INFO running `"docker" "inspect" "54f9467bdbb8d8931bde400d6b0a4fe8f4838cb23b4397e692c7956393d08ab3"`
Dec 19 06:50:14.194 INFO running `"docker" "rm" "-f" "54f9467bdbb8d8931bde400d6b0a4fe8f4838cb23b4397e692c7956393d08ab3"`
Dec 19 06:50:14.546 INFO [stdout] 54f9467bdbb8d8931bde400d6b0a4fe8f4838cb23b4397e692c7956393d08ab3