[INFO] updating cached repository tomvidm/rust-sudoku-solver [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/tomvidm/rust-sudoku-solver [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/tomvidm/rust-sudoku-solver" "work/ex/clippy-test-run/sources/stable/gh/tomvidm/rust-sudoku-solver"` [INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/tomvidm/rust-sudoku-solver'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/tomvidm/rust-sudoku-solver" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/tomvidm/rust-sudoku-solver"` [INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/tomvidm/rust-sudoku-solver'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 9778d53891d8a991798dcffb2afeb743bbc9da94 [INFO] sha for GitHub repo tomvidm/rust-sudoku-solver: 9778d53891d8a991798dcffb2afeb743bbc9da94 [INFO] validating manifest of tomvidm/rust-sudoku-solver on toolchain stable [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of tomvidm/rust-sudoku-solver on toolchain stable+rustflags=-Dclippy::into_iter_on_array [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started frobbing tomvidm/rust-sudoku-solver [INFO] finished frobbing tomvidm/rust-sudoku-solver [INFO] frobbed toml for tomvidm/rust-sudoku-solver written to work/ex/clippy-test-run/sources/stable/gh/tomvidm/rust-sudoku-solver/Cargo.toml [INFO] started frobbing tomvidm/rust-sudoku-solver [INFO] finished frobbing tomvidm/rust-sudoku-solver [INFO] frobbed toml for tomvidm/rust-sudoku-solver written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/tomvidm/rust-sudoku-solver/Cargo.toml [INFO] crate tomvidm/rust-sudoku-solver has a lockfile. skipping [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] linting tomvidm/rust-sudoku-solver against stable for clippy-test-run [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-1/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/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" "+stable" "clippy" "--frozen" "--all" "--all-targets"` [INFO] [stdout] 38036a0b5375eb600534988239b710ec174ad44551171d679876b9d3776b54f6 [INFO] running `"docker" "start" "-a" "38036a0b5375eb600534988239b710ec174ad44551171d679876b9d3776b54f6"` [INFO] [stderr] Compiling serde v1.0.73 [INFO] [stderr] Compiling ryu v0.2.4 [INFO] [stderr] Compiling syn v0.14.9 [INFO] [stderr] Compiling serde_derive v1.0.73 [INFO] [stderr] Checking serde_json v1.0.26 [INFO] [stderr] Checking sudoku v0.1.0 (/opt/crater/workdir) [INFO] [stderr] warning: redundant field names in struct initialization [INFO] [stderr] --> src/su/board.rs:12:13 [INFO] [stderr] | [INFO] [stderr] 12 | row: row, [INFO] [stderr] | ^^^^^^^^ help: replace it with: `row` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(clippy::redundant_field_names)] on by default [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names [INFO] [stderr] [INFO] [stderr] warning: redundant field names in struct initialization [INFO] [stderr] --> src/su/board.rs:13:13 [INFO] [stderr] | [INFO] [stderr] 13 | col: col [INFO] [stderr] | ^^^^^^^^ help: replace it with: `col` [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names [INFO] [stderr] [INFO] [stderr] warning: redundant field names in struct initialization [INFO] [stderr] --> src/su/board.rs:41:13 [INFO] [stderr] | [INFO] [stderr] 41 | coord: coord, [INFO] [stderr] | ^^^^^^^^^^^^ help: replace it with: `coord` [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names [INFO] [stderr] [INFO] [stderr] warning: redundant field names in struct initialization [INFO] [stderr] --> src/su/sugame.rs:38:21 [INFO] [stderr] | [INFO] [stderr] 38 | board: board [INFO] [stderr] | ^^^^^^^^^^^^ help: replace it with: `board` [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names [INFO] [stderr] [INFO] [stderr] warning: redundant field names in struct initialization [INFO] [stderr] --> src/su/board.rs:12:13 [INFO] [stderr] | [INFO] [stderr] 12 | row: row, [INFO] [stderr] | ^^^^^^^^ help: replace it with: `row` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(clippy::redundant_field_names)] on by default [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names [INFO] [stderr] [INFO] [stderr] warning: redundant field names in struct initialization [INFO] [stderr] --> src/su/board.rs:13:13 [INFO] [stderr] | [INFO] [stderr] 13 | col: col [INFO] [stderr] | ^^^^^^^^ help: replace it with: `col` [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names [INFO] [stderr] [INFO] [stderr] warning: redundant field names in struct initialization [INFO] [stderr] --> src/su/board.rs:41:13 [INFO] [stderr] | [INFO] [stderr] 41 | coord: coord, [INFO] [stderr] | ^^^^^^^^^^^^ help: replace it with: `coord` [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names [INFO] [stderr] [INFO] [stderr] warning: redundant field names in struct initialization [INFO] [stderr] --> src/su/sugame.rs:38:21 [INFO] [stderr] | [INFO] [stderr] 38 | board: board [INFO] [stderr] | ^^^^^^^^^^^^ help: replace it with: `board` [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names [INFO] [stderr] [INFO] [stderr] warning: unneeded return statement [INFO] [stderr] --> src/su/board.rs:88:9 [INFO] [stderr] | [INFO] [stderr] 88 | return Some(board) [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `Some(board)` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(clippy::needless_return)] on by default [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return [INFO] [stderr] [INFO] [stderr] warning: unneeded return statement [INFO] [stderr] --> src/su/board.rs:119:9 [INFO] [stderr] | [INFO] [stderr] 119 | return count [INFO] [stderr] | ^^^^^^^^^^^^ help: remove `return` as shown: `count` [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return [INFO] [stderr] [INFO] [stderr] warning: unneeded return statement [INFO] [stderr] --> src/su/board.rs:130:9 [INFO] [stderr] | [INFO] [stderr] 130 | return result; [INFO] [stderr] | ^^^^^^^^^^^^^^ help: remove `return` as shown: `result` [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return [INFO] [stderr] [INFO] [stderr] warning: unneeded return statement [INFO] [stderr] --> src/su/board.rs:142:9 [INFO] [stderr] | [INFO] [stderr] 142 | return result; [INFO] [stderr] | ^^^^^^^^^^^^^^ help: remove `return` as shown: `result` [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return [INFO] [stderr] [INFO] [stderr] warning: unneeded return statement [INFO] [stderr] --> src/su/board.rs:147:13 [INFO] [stderr] | [INFO] [stderr] 147 | return true [INFO] [stderr] | ^^^^^^^^^^^ help: remove `return` as shown: `true` [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return [INFO] [stderr] [INFO] [stderr] warning: unneeded return statement [INFO] [stderr] --> src/su/board.rs:182:13 [INFO] [stderr] | [INFO] [stderr] 182 | return true [INFO] [stderr] | ^^^^^^^^^^^ help: remove `return` as shown: `true` [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return [INFO] [stderr] [INFO] [stderr] warning: unneeded return statement [INFO] [stderr] --> src/su/board.rs:184:13 [INFO] [stderr] | [INFO] [stderr] 184 | return false [INFO] [stderr] | ^^^^^^^^^^^^ help: remove `return` as shown: `false` [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return [INFO] [stderr] [INFO] [stderr] warning: unneeded return statement [INFO] [stderr] --> src/su/sugame.rs:36:28 [INFO] [stderr] | [INFO] [stderr] 36 | Some(board) => return Some( [INFO] [stderr] | ____________________________^ [INFO] [stderr] 37 | | Game{ [INFO] [stderr] 38 | | board: board [INFO] [stderr] 39 | | } [INFO] [stderr] 40 | | ), [INFO] [stderr] | |_____________^ [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return [INFO] [stderr] help: remove `return` as shown [INFO] [stderr] | [INFO] [stderr] 36 | Some(board) => Some( [INFO] [stderr] 37 | Game{ [INFO] [stderr] 38 | board: board [INFO] [stderr] 39 | } [INFO] [stderr] 40 | ), [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: unneeded return statement [INFO] [stderr] --> src/su/sugame.rs:41:21 [INFO] [stderr] | [INFO] [stderr] 41 | None => return None [INFO] [stderr] | ^^^^^^^^^^^ help: remove `return` as shown: `None` [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return [INFO] [stderr] [INFO] [stderr] warning: unneeded return statement [INFO] [stderr] --> src/su/board.rs:88:9 [INFO] [stderr] | [INFO] [stderr] 88 | return Some(board) [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `Some(board)` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(clippy::needless_return)] on by default [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return [INFO] [stderr] [INFO] [stderr] warning: unneeded return statement [INFO] [stderr] --> src/su/board.rs:119:9 [INFO] [stderr] | [INFO] [stderr] 119 | return count [INFO] [stderr] | ^^^^^^^^^^^^ help: remove `return` as shown: `count` [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return [INFO] [stderr] [INFO] [stderr] warning: unneeded return statement [INFO] [stderr] --> src/su/board.rs:130:9 [INFO] [stderr] | [INFO] [stderr] 130 | return result; [INFO] [stderr] | ^^^^^^^^^^^^^^ help: remove `return` as shown: `result` [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return [INFO] [stderr] [INFO] [stderr] warning: unneeded return statement [INFO] [stderr] --> src/su/board.rs:142:9 [INFO] [stderr] | [INFO] [stderr] 142 | return result; [INFO] [stderr] | ^^^^^^^^^^^^^^ help: remove `return` as shown: `result` [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return [INFO] [stderr] [INFO] [stderr] warning: unneeded return statement [INFO] [stderr] --> src/su/board.rs:147:13 [INFO] [stderr] | [INFO] [stderr] 147 | return true [INFO] [stderr] | ^^^^^^^^^^^ help: remove `return` as shown: `true` [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return [INFO] [stderr] [INFO] [stderr] warning: unneeded return statement [INFO] [stderr] --> src/su/board.rs:182:13 [INFO] [stderr] | [INFO] [stderr] 182 | return true [INFO] [stderr] | ^^^^^^^^^^^ help: remove `return` as shown: `true` [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return [INFO] [stderr] [INFO] [stderr] warning: unneeded return statement [INFO] [stderr] --> src/su/board.rs:184:13 [INFO] [stderr] | [INFO] [stderr] 184 | return false [INFO] [stderr] | ^^^^^^^^^^^^ help: remove `return` as shown: `false` [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return [INFO] [stderr] [INFO] [stderr] warning: unneeded return statement [INFO] [stderr] --> src/su/sugame.rs:36:28 [INFO] [stderr] | [INFO] [stderr] 36 | Some(board) => return Some( [INFO] [stderr] | ____________________________^ [INFO] [stderr] 37 | | Game{ [INFO] [stderr] 38 | | board: board [INFO] [stderr] 39 | | } [INFO] [stderr] 40 | | ), [INFO] [stderr] | |_____________^ [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return [INFO] [stderr] help: remove `return` as shown [INFO] [stderr] | [INFO] [stderr] 36 | Some(board) => Some( [INFO] [stderr] 37 | Game{ [INFO] [stderr] 38 | board: board [INFO] [stderr] 39 | } [INFO] [stderr] 40 | ), [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: unneeded return statement [INFO] [stderr] --> src/su/sugame.rs:41:21 [INFO] [stderr] | [INFO] [stderr] 41 | None => return None [INFO] [stderr] | ^^^^^^^^^^^ help: remove `return` as shown: `None` [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return [INFO] [stderr] [INFO] [stderr] warning: unused variable: `board` [INFO] [stderr] --> src/main.rs:10:9 [INFO] [stderr] | [INFO] [stderr] 10 | let board = su::Board::new(); [INFO] [stderr] | ^^^^^ help: consider using `_board` instead [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_variables)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `board` [INFO] [stderr] --> src/su/board.rs:205:13 [INFO] [stderr] | [INFO] [stderr] 205 | let mut board = Board::new_from_array(valid_raw_board); [INFO] [stderr] | ^^^^^ help: consider using `_board` instead [INFO] [stderr] [INFO] [stderr] warning: unused variable: `game` [INFO] [stderr] --> src/su/sugame.rs:49:9 [INFO] [stderr] | [INFO] [stderr] 49 | let game = Game::test_game(); [INFO] [stderr] | ^^^^ help: consider using `_game` instead [INFO] [stderr] [INFO] [stderr] warning: unused variable: `coord` [INFO] [stderr] --> src/su/board.rs:80:21 [INFO] [stderr] | [INFO] [stderr] 80 | let coord = Coord::new(r, c); [INFO] [stderr] | ^^^^^ help: consider using `_coord` instead [INFO] [stderr] [INFO] [stderr] warning: unused variable: `old_entry` [INFO] [stderr] --> src/su/board.rs:174:17 [INFO] [stderr] | [INFO] [stderr] 174 | let old_entry = Move::new_from_coord_and_value(coord, old_value); [INFO] [stderr] | ^^^^^^^^^ help: consider using `_old_entry` instead [INFO] [stderr] [INFO] [stderr] warning: unused variable: `raw_board_struct` [INFO] [stderr] --> src/su/sugame.rs:31:13 [INFO] [stderr] | [INFO] [stderr] 31 | let raw_board_struct = raw_board.clone(); [INFO] [stderr] | ^^^^^^^^^^^^^^^^ help: consider using `_raw_board_struct` instead [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/su/board.rs:205:9 [INFO] [stderr] | [INFO] [stderr] 205 | let mut board = Board::new_from_array(valid_raw_board); [INFO] [stderr] | ----^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_mut)] on by default [INFO] [stderr] [INFO] [stderr] warning: field is never used: `data` [INFO] [stderr] --> src/su/sugame.rs:9:5 [INFO] [stderr] | [INFO] [stderr] 9 | data: [[i8; 9]; 9] [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(dead_code)] on by default [INFO] [stderr] [INFO] [stderr] warning: field is never used: `board` [INFO] [stderr] --> src/su/sugame.rs:13:5 [INFO] [stderr] | [INFO] [stderr] 13 | board: Board, [INFO] [stderr] | ^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: this argument is passed by reference, but would be more efficient if passed by value [INFO] [stderr] --> src/su/board.rs:16:15 [INFO] [stderr] | [INFO] [stderr] 16 | fn to_row(&self) -> i8 {self.row} [INFO] [stderr] | ^^^^^ help: consider passing by value instead: `self` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(clippy::trivially_copy_pass_by_ref)] on by default [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#trivially_copy_pass_by_ref [INFO] [stderr] [INFO] [stderr] warning: this argument is passed by reference, but would be more efficient if passed by value [INFO] [stderr] --> src/su/board.rs:17:15 [INFO] [stderr] | [INFO] [stderr] 17 | fn to_col(&self) -> i8 {self.col} [INFO] [stderr] | ^^^^^ help: consider passing by value instead: `self` [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#trivially_copy_pass_by_ref [INFO] [stderr] [INFO] [stderr] warning: this argument is passed by reference, but would be more efficient if passed by value [INFO] [stderr] --> src/su/board.rs:18:18 [INFO] [stderr] | [INFO] [stderr] 18 | fn to_square(&self) -> i8 { [INFO] [stderr] | ^^^^^ help: consider passing by value instead: `self` [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#trivially_copy_pass_by_ref [INFO] [stderr] [INFO] [stderr] warning: using `clone` on a `Copy` type [INFO] [stderr] --> src/su/board.rs:126:35 [INFO] [stderr] | [INFO] [stderr] 126 | if self.is_move_legal(new_move.clone()) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^ help: try removing the `clone` call: `new_move` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(clippy::clone_on_copy)] on by default [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_on_copy [INFO] [stderr] [INFO] [stderr] warning: unused variable: `board` [INFO] [stderr] --> src/main.rs:10:9 [INFO] [stderr] | [INFO] [stderr] 10 | let board = su::Board::new(); [INFO] [stderr] | ^^^^^ help: consider using `_board` instead [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_variables)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `coord` [INFO] [stderr] --> src/su/board.rs:80:21 [INFO] [stderr] | [INFO] [stderr] 80 | let coord = Coord::new(r, c); [INFO] [stderr] | ^^^^^ help: consider using `_coord` instead [INFO] [stderr] [INFO] [stderr] warning: unused variable: `old_entry` [INFO] [stderr] --> src/su/board.rs:174:17 [INFO] [stderr] | [INFO] [stderr] 174 | let old_entry = Move::new_from_coord_and_value(coord, old_value); [INFO] [stderr] | ^^^^^^^^^ help: consider using `_old_entry` instead [INFO] [stderr] [INFO] [stderr] warning: unused variable: `raw_board_struct` [INFO] [stderr] --> src/su/sugame.rs:31:13 [INFO] [stderr] | [INFO] [stderr] 31 | let raw_board_struct = raw_board.clone(); [INFO] [stderr] | ^^^^^^^^^^^^^^^^ help: consider using `_raw_board_struct` instead [INFO] [stderr] [INFO] [stderr] error: useless lint attribute [INFO] [stderr] --> src/su/sugame.rs:1:1 [INFO] [stderr] | [INFO] [stderr] 1 | #[allow(dead_code)] [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^ help: if you just forgot a `!`, use: `#![allow(dead_code)]` [INFO] [stderr] | [INFO] [stderr] = note: #[deny(clippy::useless_attribute)] on by default [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_attribute [INFO] [stderr] [INFO] [stderr] warning: using `clone` on a `Copy` type [INFO] [stderr] --> src/su/sugame.rs:31:32 [INFO] [stderr] | [INFO] [stderr] 31 | let raw_board_struct = raw_board.clone(); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ help: try removing the `clone` call: `raw_board` [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_on_copy [INFO] [stderr] [INFO] [stderr] error: aborting due to previous error [INFO] [stderr] [INFO] [stderr] error: Could not compile `sudoku`. [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] warning: field is never used: `data` [INFO] [stderr] --> src/su/sugame.rs:9:5 [INFO] [stderr] | [INFO] [stderr] 9 | data: [[i8; 9]; 9] [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(dead_code)] on by default [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `Game` [INFO] [stderr] --> src/su/sugame.rs:12:1 [INFO] [stderr] | [INFO] [stderr] 12 | pub struct Game { [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `test_game` [INFO] [stderr] --> src/su/sugame.rs:17:5 [INFO] [stderr] | [INFO] [stderr] 17 | fn test_game() -> Option { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: this argument is passed by reference, but would be more efficient if passed by value [INFO] [stderr] --> src/su/board.rs:16:15 [INFO] [stderr] | [INFO] [stderr] 16 | fn to_row(&self) -> i8 {self.row} [INFO] [stderr] | ^^^^^ help: consider passing by value instead: `self` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(clippy::trivially_copy_pass_by_ref)] on by default [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#trivially_copy_pass_by_ref [INFO] [stderr] [INFO] [stderr] warning: this argument is passed by reference, but would be more efficient if passed by value [INFO] [stderr] --> src/su/board.rs:17:15 [INFO] [stderr] | [INFO] [stderr] 17 | fn to_col(&self) -> i8 {self.col} [INFO] [stderr] | ^^^^^ help: consider passing by value instead: `self` [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#trivially_copy_pass_by_ref [INFO] [stderr] [INFO] [stderr] warning: this argument is passed by reference, but would be more efficient if passed by value [INFO] [stderr] --> src/su/board.rs:18:18 [INFO] [stderr] | [INFO] [stderr] 18 | fn to_square(&self) -> i8 { [INFO] [stderr] | ^^^^^ help: consider passing by value instead: `self` [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#trivially_copy_pass_by_ref [INFO] [stderr] [INFO] [stderr] warning: using `clone` on a `Copy` type [INFO] [stderr] --> src/su/board.rs:126:35 [INFO] [stderr] | [INFO] [stderr] 126 | if self.is_move_legal(new_move.clone()) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^ help: try removing the `clone` call: `new_move` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(clippy::clone_on_copy)] on by default [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_on_copy [INFO] [stderr] [INFO] [stderr] error: useless lint attribute [INFO] [stderr] --> src/su/sugame.rs:1:1 [INFO] [stderr] | [INFO] [stderr] 1 | #[allow(dead_code)] [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^ help: if you just forgot a `!`, use: `#![allow(dead_code)]` [INFO] [stderr] | [INFO] [stderr] = note: #[deny(clippy::useless_attribute)] on by default [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_attribute [INFO] [stderr] [INFO] [stderr] warning: using `clone` on a `Copy` type [INFO] [stderr] --> src/su/sugame.rs:31:32 [INFO] [stderr] | [INFO] [stderr] 31 | let raw_board_struct = raw_board.clone(); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ help: try removing the `clone` call: `raw_board` [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_on_copy [INFO] [stderr] [INFO] [stderr] error: aborting due to previous error [INFO] [stderr] [INFO] [stderr] error: Could not compile `sudoku`. [INFO] [stderr] [INFO] [stderr] To learn more, run the command again with --verbose. [INFO] running `"docker" "inspect" "38036a0b5375eb600534988239b710ec174ad44551171d679876b9d3776b54f6"` [INFO] running `"docker" "rm" "-f" "38036a0b5375eb600534988239b710ec174ad44551171d679876b9d3776b54f6"` [INFO] [stdout] 38036a0b5375eb600534988239b710ec174ad44551171d679876b9d3776b54f6