[INFO] updating cached repository rivaxel/My-Chess-Engine
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/rivaxel/My-Chess-Engine
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/rivaxel/My-Chess-Engine" "work/ex/clippy-test-run/sources/stable/gh/rivaxel/My-Chess-Engine"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/rivaxel/My-Chess-Engine'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/rivaxel/My-Chess-Engine" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/rivaxel/My-Chess-Engine"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/rivaxel/My-Chess-Engine'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 52b9d7e6d4c5519bc5a8d3152f2dc3cb1932554f
[INFO] sha for GitHub repo rivaxel/My-Chess-Engine: 52b9d7e6d4c5519bc5a8d3152f2dc3cb1932554f
[INFO] validating manifest of rivaxel/My-Chess-Engine 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 rivaxel/My-Chess-Engine 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 rivaxel/My-Chess-Engine
[INFO] finished frobbing rivaxel/My-Chess-Engine
[INFO] frobbed toml for rivaxel/My-Chess-Engine written to work/ex/clippy-test-run/sources/stable/gh/rivaxel/My-Chess-Engine/Cargo.toml
[INFO] started frobbing rivaxel/My-Chess-Engine
[INFO] finished frobbing rivaxel/My-Chess-Engine
[INFO] frobbed toml for rivaxel/My-Chess-Engine written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/rivaxel/My-Chess-Engine/Cargo.toml
[INFO] crate rivaxel/My-Chess-Engine 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 rivaxel/My-Chess-Engine 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/rivaxel/My-Chess-Engine:/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] 7733c656a6c22219a3f64fb97f617eaf7d9d6d5b4b137c8f99b8c24c9b8dabf6
[INFO] running `"docker" "start" "-a" "7733c656a6c22219a3f64fb97f617eaf7d9d6d5b4b137c8f99b8c24c9b8dabf6"`
[INFO] [stderr]     Checking arsenic_chess_engine v0.3.0 (/opt/crater/workdir)
[INFO] [stderr] warning: returning the result of a let binding from a block. Consider returning the expression directly.
[INFO] [stderr]    --> src/chess_board/evaluation.rs:144:9
[INFO] [stderr]     |
[INFO] [stderr] 144 |         destination_score
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::let_and_return)] on by default
[INFO] [stderr] note: this expression can be directly returned
[INFO] [stderr]    --> src/chess_board/evaluation.rs:134:33
[INFO] [stderr]     |
[INFO] [stderr] 134 |           let destination_score = match piece.to_ascii_uppercase() {
[INFO] [stderr]     |  _________________________________^
[INFO] [stderr] 135 | |             'P' => PAWN_SQUARE_TABLE[index],
[INFO] [stderr] 136 | |             'N' => KNIGHT_SQUARE_TABLE[index],
[INFO] [stderr] 137 | |             'B' => BISHOP_SQUARE_TABLE[index],
[INFO] [stderr] ...   |
[INFO] [stderr] 141 | |             _   => 0
[INFO] [stderr] 142 | |         };
[INFO] [stderr]     | |_________^
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#let_and_return
[INFO] [stderr] 
[INFO] [stderr] warning: returning the result of a let binding from a block. Consider returning the expression directly.
[INFO] [stderr]    --> src/chess_board/mod.rs:214:9
[INFO] [stderr]     |
[INFO] [stderr] 214 |         matched_letter
[INFO] [stderr]     |         ^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr] note: this expression can be directly returned
[INFO] [stderr]    --> src/chess_board/mod.rs:176:30
[INFO] [stderr]     |
[INFO] [stderr] 176 |           let matched_letter = if perspective_color {
[INFO] [stderr]     |  ______________________________^
[INFO] [stderr] 177 | |             let new_letter = match letter {
[INFO] [stderr] 178 | |                 'K' => '♔',
[INFO] [stderr] 179 | |                 'Q' => '♕',
[INFO] [stderr] ...   |
[INFO] [stderr] 211 | |             new_letter
[INFO] [stderr] 212 | |         };
[INFO] [stderr]     | |_________^
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#let_and_return
[INFO] [stderr] 
[INFO] [stderr] warning: returning the result of a let binding from a block. Consider returning the expression directly.
[INFO] [stderr]    --> src/chess_board/mod.rs:193:13
[INFO] [stderr]     |
[INFO] [stderr] 193 |             new_letter
[INFO] [stderr]     |             ^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr] note: this expression can be directly returned
[INFO] [stderr]    --> src/chess_board/mod.rs:177:30
[INFO] [stderr]     |
[INFO] [stderr] 177 |               let new_letter = match letter {
[INFO] [stderr]     |  ______________________________^
[INFO] [stderr] 178 | |                 'K' => '♔',
[INFO] [stderr] 179 | |                 'Q' => '♕',
[INFO] [stderr] 180 | |                 'R' => '♖',
[INFO] [stderr] ...   |
[INFO] [stderr] 190 | |                 _   => letter,
[INFO] [stderr] 191 | |             };
[INFO] [stderr]     | |_____________^
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#let_and_return
[INFO] [stderr] 
[INFO] [stderr] warning: returning the result of a let binding from a block. Consider returning the expression directly.
[INFO] [stderr]    --> src/chess_board/mod.rs:211:13
[INFO] [stderr]     |
[INFO] [stderr] 211 |             new_letter
[INFO] [stderr]     |             ^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr] note: this expression can be directly returned
[INFO] [stderr]    --> src/chess_board/mod.rs:195:30
[INFO] [stderr]     |
[INFO] [stderr] 195 |               let new_letter = match letter {
[INFO] [stderr]     |  ______________________________^
[INFO] [stderr] 196 | |                 'K' => '♚',
[INFO] [stderr] 197 | |                 'Q' => '♛',
[INFO] [stderr] 198 | |                 'R' => '♜',
[INFO] [stderr] ...   |
[INFO] [stderr] 208 | |                 _   => letter,
[INFO] [stderr] 209 | |             };
[INFO] [stderr]     | |_____________^
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#let_and_return
[INFO] [stderr] 
[INFO] [stderr] warning: this if statement can be collapsed
[INFO] [stderr]    --> src/move_generator.rs:207:25
[INFO] [stderr]     |
[INFO] [stderr] 207 | /                         if piece_direction == N || piece_direction == N + N {
[INFO] [stderr] 208 | |                             if destination_piece != '.' {
[INFO] [stderr] 209 | |                                 break;
[INFO] [stderr] 210 | |                             }
[INFO] [stderr] 211 | |                         }
[INFO] [stderr]     | |_________________________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::collapsible_if)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#collapsible_if
[INFO] [stderr] help: try
[INFO] [stderr]     |
[INFO] [stderr] 207 |                         if (piece_direction == N || piece_direction == N + N) && destination_piece != '.' {
[INFO] [stderr] 208 |     break;
[INFO] [stderr] 209 | }
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: this if statement can be collapsed
[INFO] [stderr]    --> src/move_generator.rs:213:25
[INFO] [stderr]     |
[INFO] [stderr] 213 | /                         if piece_direction == N + N {
[INFO] [stderr] 214 | |                             if square_index < (A1 + N) || current_position.get_square(square_index + N) != '.' {
[INFO] [stderr] 215 | |                                 break;
[INFO] [stderr] 216 | |                             }
[INFO] [stderr] 217 | |                         }
[INFO] [stderr]     | |_________________________^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#collapsible_if
[INFO] [stderr] help: try
[INFO] [stderr]     |
[INFO] [stderr] 213 |                         if piece_direction == N + N && (square_index < (A1 + N) || current_position.get_square(square_index + N) != '.') {
[INFO] [stderr] 214 |     break;
[INFO] [stderr] 215 | }
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: this if statement can be collapsed
[INFO] [stderr]    --> src/move_generator.rs:219:25
[INFO] [stderr]     |
[INFO] [stderr] 219 | /                         if piece_direction == N + W || piece_direction == N + E {
[INFO] [stderr] 220 | |                             if destination_piece == '.' {
[INFO] [stderr] 221 | |                                 break;
[INFO] [stderr] 222 | |                             }
[INFO] [stderr] 223 | |                         }
[INFO] [stderr]     | |_________________________^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#collapsible_if
[INFO] [stderr] help: try
[INFO] [stderr]     |
[INFO] [stderr] 219 |                         if (piece_direction == N + W || piece_direction == N + E) && destination_piece == '.' {
[INFO] [stderr] 220 |     break;
[INFO] [stderr] 221 | }
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: this `else { if .. }` block can be collapsed
[INFO] [stderr]    --> src/searcher.rs:122:20
[INFO] [stderr]     |
[INFO] [stderr] 122 |               } else {
[INFO] [stderr]     |  ____________________^
[INFO] [stderr] 123 | |                 if self.move_generator.detect_check(current_node) {
[INFO] [stderr] 124 | |                     return i64::max_value() - 10000 + depth as i64
[INFO] [stderr] 125 | |                 } else {
[INFO] [stderr] 126 | |                     return i64::min_value() + 10000 - depth as i64
[INFO] [stderr] 127 | |                 }
[INFO] [stderr] 128 | |             }
[INFO] [stderr]     | |_____________^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#collapsible_if
[INFO] [stderr] help: try
[INFO] [stderr]     |
[INFO] [stderr] 122 |             } else if self.move_generator.detect_check(current_node) {
[INFO] [stderr] 123 |     return i64::max_value() - 10000 + depth as i64
[INFO] [stderr] 124 | } else {
[INFO] [stderr] 125 |     return i64::min_value() + 10000 - depth as i64
[INFO] [stderr] 126 | }
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: this if statement can be collapsed
[INFO] [stderr]    --> src/searcher.rs:141:17
[INFO] [stderr]     |
[INFO] [stderr] 141 | /                 if root {
[INFO] [stderr] 142 | |                     if v > best_move_score {
[INFO] [stderr] 143 | |                         best_move_score = v;
[INFO] [stderr] 144 | |                         self.next_move = chess_move.clone();
[INFO] [stderr] 145 | |                     }
[INFO] [stderr] 146 | |                 }
[INFO] [stderr]     | |_________________^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#collapsible_if
[INFO] [stderr] help: try
[INFO] [stderr]     |
[INFO] [stderr] 141 |                 if root && v > best_move_score {
[INFO] [stderr] 142 |     best_move_score = v;
[INFO] [stderr] 143 |     self.next_move = chess_move.clone();
[INFO] [stderr] 144 | }
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: returning the result of a let binding from a block. Consider returning the expression directly.
[INFO] [stderr]    --> src/chess_board/evaluation.rs:144:9
[INFO] [stderr]     |
[INFO] [stderr] 144 |         destination_score
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::let_and_return)] on by default
[INFO] [stderr] note: this expression can be directly returned
[INFO] [stderr]    --> src/chess_board/evaluation.rs:134:33
[INFO] [stderr]     |
[INFO] [stderr] 134 |           let destination_score = match piece.to_ascii_uppercase() {
[INFO] [stderr]     |  _________________________________^
[INFO] [stderr] 135 | |             'P' => PAWN_SQUARE_TABLE[index],
[INFO] [stderr] 136 | |             'N' => KNIGHT_SQUARE_TABLE[index],
[INFO] [stderr] 137 | |             'B' => BISHOP_SQUARE_TABLE[index],
[INFO] [stderr] ...   |
[INFO] [stderr] 141 | |             _   => 0
[INFO] [stderr] 142 | |         };
[INFO] [stderr]     | |_________^
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#let_and_return
[INFO] [stderr] 
[INFO] [stderr] warning: returning the result of a let binding from a block. Consider returning the expression directly.
[INFO] [stderr]    --> src/chess_board/mod.rs:214:9
[INFO] [stderr]     |
[INFO] [stderr] 214 |         matched_letter
[INFO] [stderr]     |         ^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr] note: this expression can be directly returned
[INFO] [stderr]    --> src/chess_board/mod.rs:176:30
[INFO] [stderr]     |
[INFO] [stderr] 176 |           let matched_letter = if perspective_color {
[INFO] [stderr]     |  ______________________________^
[INFO] [stderr] 177 | |             let new_letter = match letter {
[INFO] [stderr] 178 | |                 'K' => '♔',
[INFO] [stderr] 179 | |                 'Q' => '♕',
[INFO] [stderr] ...   |
[INFO] [stderr] 211 | |             new_letter
[INFO] [stderr] 212 | |         };
[INFO] [stderr]     | |_________^
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#let_and_return
[INFO] [stderr] 
[INFO] [stderr] warning: returning the result of a let binding from a block. Consider returning the expression directly.
[INFO] [stderr]    --> src/chess_board/mod.rs:193:13
[INFO] [stderr]     |
[INFO] [stderr] 193 |             new_letter
[INFO] [stderr]     |             ^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr] note: this expression can be directly returned
[INFO] [stderr]    --> src/chess_board/mod.rs:177:30
[INFO] [stderr]     |
[INFO] [stderr] 177 |               let new_letter = match letter {
[INFO] [stderr]     |  ______________________________^
[INFO] [stderr] 178 | |                 'K' => '♔',
[INFO] [stderr] 179 | |                 'Q' => '♕',
[INFO] [stderr] 180 | |                 'R' => '♖',
[INFO] [stderr] ...   |
[INFO] [stderr] 190 | |                 _   => letter,
[INFO] [stderr] 191 | |             };
[INFO] [stderr]     | |_____________^
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#let_and_return
[INFO] [stderr] 
[INFO] [stderr] warning: returning the result of a let binding from a block. Consider returning the expression directly.
[INFO] [stderr]    --> src/chess_board/mod.rs:211:13
[INFO] [stderr]     |
[INFO] [stderr] 211 |             new_letter
[INFO] [stderr]     |             ^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr] note: this expression can be directly returned
[INFO] [stderr]    --> src/chess_board/mod.rs:195:30
[INFO] [stderr]     |
[INFO] [stderr] 195 |               let new_letter = match letter {
[INFO] [stderr]     |  ______________________________^
[INFO] [stderr] 196 | |                 'K' => '♚',
[INFO] [stderr] 197 | |                 'Q' => '♛',
[INFO] [stderr] 198 | |                 'R' => '♜',
[INFO] [stderr] ...   |
[INFO] [stderr] 208 | |                 _   => letter,
[INFO] [stderr] 209 | |             };
[INFO] [stderr]     | |_____________^
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#let_and_return
[INFO] [stderr] 
[INFO] [stderr] warning: this if statement can be collapsed
[INFO] [stderr]    --> src/move_generator.rs:207:25
[INFO] [stderr]     |
[INFO] [stderr] 207 | /                         if piece_direction == N || piece_direction == N + N {
[INFO] [stderr] 208 | |                             if destination_piece != '.' {
[INFO] [stderr] 209 | |                                 break;
[INFO] [stderr] 210 | |                             }
[INFO] [stderr] 211 | |                         }
[INFO] [stderr]     | |_________________________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::collapsible_if)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#collapsible_if
[INFO] [stderr] help: try
[INFO] [stderr]     |
[INFO] [stderr] 207 |                         if (piece_direction == N || piece_direction == N + N) && destination_piece != '.' {
[INFO] [stderr] 208 |     break;
[INFO] [stderr] 209 | }
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: this if statement can be collapsed
[INFO] [stderr]    --> src/move_generator.rs:213:25
[INFO] [stderr]     |
[INFO] [stderr] 213 | /                         if piece_direction == N + N {
[INFO] [stderr] 214 | |                             if square_index < (A1 + N) || current_position.get_square(square_index + N) != '.' {
[INFO] [stderr] 215 | |                                 break;
[INFO] [stderr] 216 | |                             }
[INFO] [stderr] 217 | |                         }
[INFO] [stderr]     | |_________________________^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#collapsible_if
[INFO] [stderr] help: try
[INFO] [stderr]     |
[INFO] [stderr] 213 |                         if piece_direction == N + N && (square_index < (A1 + N) || current_position.get_square(square_index + N) != '.') {
[INFO] [stderr] 214 |     break;
[INFO] [stderr] 215 | }
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: this if statement can be collapsed
[INFO] [stderr]    --> src/move_generator.rs:219:25
[INFO] [stderr]     |
[INFO] [stderr] 219 | /                         if piece_direction == N + W || piece_direction == N + E {
[INFO] [stderr] 220 | |                             if destination_piece == '.' {
[INFO] [stderr] 221 | |                                 break;
[INFO] [stderr] 222 | |                             }
[INFO] [stderr] 223 | |                         }
[INFO] [stderr]     | |_________________________^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#collapsible_if
[INFO] [stderr] help: try
[INFO] [stderr]     |
[INFO] [stderr] 219 |                         if (piece_direction == N + W || piece_direction == N + E) && destination_piece == '.' {
[INFO] [stderr] 220 |     break;
[INFO] [stderr] 221 | }
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]    --> src/move_generator.rs:289:81
[INFO] [stderr]     |
[INFO] [stderr] 289 |         assert_eq!(move_generator.calculate_perft_depth(&test_board, 4, false), 197281);
[INFO] [stderr]     |                                                                                 ^^^^^^ help: consider: `197_281`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::unreadable_literal)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]    --> src/move_generator.rs:291:81
[INFO] [stderr]     |
[INFO] [stderr] 291 |         assert_eq!(move_generator.calculate_perft_depth(&test_board, 5, false), 4865609);
[INFO] [stderr]     |                                                                                 ^^^^^^^ help: consider: `4_865_609`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]    --> src/move_generator.rs:310:81
[INFO] [stderr]     |
[INFO] [stderr] 310 |         assert_eq!(move_generator.calculate_perft_depth(&test_board, 4, false), 4085603);
[INFO] [stderr]     |                                                                                 ^^^^^^^ help: consider: `4_085_603`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]    --> src/move_generator.rs:331:81
[INFO] [stderr]     |
[INFO] [stderr] 331 |         assert_eq!(move_generator.calculate_perft_depth(&test_board, 5, false), 674624);
[INFO] [stderr]     |                                                                                 ^^^^^^ help: consider: `674_624`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]    --> src/move_generator.rs:333:81
[INFO] [stderr]     |
[INFO] [stderr] 333 |         assert_eq!(move_generator.calculate_perft_depth(&test_board, 6, false), 11030083);
[INFO] [stderr]     |                                                                                 ^^^^^^^^ help: consider: `11_030_083`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]    --> src/move_generator.rs:352:81
[INFO] [stderr]     |
[INFO] [stderr] 352 |         assert_eq!(move_generator.calculate_perft_depth(&test_board, 4, false), 422333);
[INFO] [stderr]     |                                                                                 ^^^^^^ help: consider: `422_333`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]    --> src/move_generator.rs:354:81
[INFO] [stderr]     |
[INFO] [stderr] 354 |         assert_eq!(move_generator.calculate_perft_depth(&test_board, 5, false), 15833292);
[INFO] [stderr]     |                                                                                 ^^^^^^^^ help: consider: `15_833_292`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]    --> src/move_generator.rs:373:81
[INFO] [stderr]     |
[INFO] [stderr] 373 |         assert_eq!(move_generator.calculate_perft_depth(&test_board, 4, false), 2103487);
[INFO] [stderr]     |                                                                                 ^^^^^^^ help: consider: `2_103_487`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]    --> src/move_generator.rs:392:81
[INFO] [stderr]     |
[INFO] [stderr] 392 |         assert_eq!(move_generator.calculate_perft_depth(&test_board, 4, false), 3894594);
[INFO] [stderr]     |                                                                                 ^^^^^^^ help: consider: `3_894_594`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: this `else { if .. }` block can be collapsed
[INFO] [stderr]    --> src/searcher.rs:122:20
[INFO] [stderr]     |
[INFO] [stderr] 122 |               } else {
[INFO] [stderr]     |  ____________________^
[INFO] [stderr] 123 | |                 if self.move_generator.detect_check(current_node) {
[INFO] [stderr] 124 | |                     return i64::max_value() - 10000 + depth as i64
[INFO] [stderr] 125 | |                 } else {
[INFO] [stderr] 126 | |                     return i64::min_value() + 10000 - depth as i64
[INFO] [stderr] 127 | |                 }
[INFO] [stderr] 128 | |             }
[INFO] [stderr]     | |_____________^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#collapsible_if
[INFO] [stderr] help: try
[INFO] [stderr]     |
[INFO] [stderr] 122 |             } else if self.move_generator.detect_check(current_node) {
[INFO] [stderr] 123 |     return i64::max_value() - 10000 + depth as i64
[INFO] [stderr] 124 | } else {
[INFO] [stderr] 125 |     return i64::min_value() + 10000 - depth as i64
[INFO] [stderr] 126 | }
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: this if statement can be collapsed
[INFO] [stderr]    --> src/searcher.rs:141:17
[INFO] [stderr]     |
[INFO] [stderr] 141 | /                 if root {
[INFO] [stderr] 142 | |                     if v > best_move_score {
[INFO] [stderr] 143 | |                         best_move_score = v;
[INFO] [stderr] 144 | |                         self.next_move = chess_move.clone();
[INFO] [stderr] 145 | |                     }
[INFO] [stderr] 146 | |                 }
[INFO] [stderr]     | |_________________^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#collapsible_if
[INFO] [stderr] help: try
[INFO] [stderr]     |
[INFO] [stderr] 141 |                 if root && v > best_move_score {
[INFO] [stderr] 142 |     best_move_score = v;
[INFO] [stderr] 143 |     self.next_move = chess_move.clone();
[INFO] [stderr] 144 | }
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `game`
[INFO] [stderr]   --> src/uci_interface.rs:37:15
[INFO] [stderr]    |
[INFO] [stderr] 37 | fn reset_game(game: &Game) {
[INFO] [stderr]    |               ^^^^ help: consider using `_game` instead
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: you should consider deriving a `Default` implementation for `chess_board::ChessBoard`
[INFO] [stderr]   --> src/chess_board/mod.rs:15:5
[INFO] [stderr]    |
[INFO] [stderr] 15 | /     pub fn new() -> ChessBoard {
[INFO] [stderr] 16 | |         ChessBoard {
[INFO] [stderr] 17 | |             board_vector: Vec::new(),
[INFO] [stderr] 18 | |             current_color: true,
[INFO] [stderr] ...  |
[INFO] [stderr] 25 | |         }
[INFO] [stderr] 26 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::new_without_default_derive)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#new_without_default_derive
[INFO] [stderr] help: try this
[INFO] [stderr]    |
[INFO] [stderr] 3  | #[derive(Default)]
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: defining a method called `clone` on this type; consider implementing the `std::clone::Clone` trait or choosing a less ambiguous name
[INFO] [stderr]   --> src/chess_board/mod.rs:41:5
[INFO] [stderr]    |
[INFO] [stderr] 41 | /     pub fn clone(&self) -> ChessBoard {
[INFO] [stderr] 42 | |         ChessBoard {
[INFO] [stderr] 43 | |             board_vector: self.board_vector.clone(),
[INFO] [stderr] 44 | |             last_move: self.last_move.clone(),
[INFO] [stderr] 45 | |             ..*self
[INFO] [stderr] 46 | |         }
[INFO] [stderr] 47 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::should_implement_trait)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#should_implement_trait
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `game`
[INFO] [stderr]   --> src/uci_interface.rs:37:15
[INFO] [stderr]    |
[INFO] [stderr] 37 | fn reset_game(game: &Game) {
[INFO] [stderr]    |               ^^^^ help: consider using `_game` instead
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: this if-then-else expression returns a bool literal
[INFO] [stderr]    --> src/chess_board/mod.rs:572:9
[INFO] [stderr]     |
[INFO] [stderr] 572 | /         if self.en_passant_lifetime > 0 {
[INFO] [stderr] 573 | |             true
[INFO] [stderr] 574 | |         } else {
[INFO] [stderr] 575 | |             false
[INFO] [stderr] 576 | |         }
[INFO] [stderr]     | |_________^ help: you can reduce it to: `self.en_passant_lifetime > 0`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::needless_bool)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_bool
[INFO] [stderr] 
[INFO] [stderr] warning: you should consider deriving a `Default` implementation for `move_generator::MoveGenerator`
[INFO] [stderr]   --> src/move_generator.rs:19:5
[INFO] [stderr]    |
[INFO] [stderr] 19 | /     pub fn new() -> MoveGenerator {
[INFO] [stderr] 20 | |         let mut directions: HashMap<char, Vec<i64>> = HashMap::new();
[INFO] [stderr] 21 | |
[INFO] [stderr] 22 | |         directions.insert('P', vec![N, N+N, N+W, N+E]);
[INFO] [stderr] ...  |
[INFO] [stderr] 31 | |         }
[INFO] [stderr] 32 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#new_without_default_derive
[INFO] [stderr] help: try this
[INFO] [stderr]    |
[INFO] [stderr] 14 | #[derive(Default)]
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: manual implementation of an assign operation
[INFO] [stderr]   --> src/move_generator.rs:52:21
[INFO] [stderr]    |
[INFO] [stderr] 52 |                     destination = destination + piece_direction;
[INFO] [stderr]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `destination += piece_direction`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::assign_op_pattern)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: useless use of `vec!`
[INFO] [stderr]    --> src/move_generator.rs:114:51
[INFO] [stderr]     |
[INFO] [stderr] 114 |                             for promoted_piece in vec!['R', 'N', 'B', 'Q'] {
[INFO] [stderr]     |                                                   ^^^^^^^^^^^^^^^^^^^^^^^^ help: you can use a slice directly: `&['R', 'N', 'B', 'Q']`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::useless_vec)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_vec
[INFO] [stderr] 
[INFO] [stderr] error: this .into_iter() call is equivalent to .iter() and will not move the array
[INFO] [stderr]    --> src/move_generator.rs:193:54
[INFO] [stderr]     |
[INFO] [stderr] 193 |         for &piece in ['P', 'N', 'B', 'R', 'Q', 'K'].into_iter() {
[INFO] [stderr]     |                                                      ^^^^^^^^^ help: call directly: `iter`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[deny(clippy::into_iter_on_array)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#into_iter_on_array
[INFO] [stderr] 
[INFO] [stderr] warning: manual implementation of an assign operation
[INFO] [stderr]    --> src/move_generator.rs:198:21
[INFO] [stderr]     |
[INFO] [stderr] 198 |                     destination = destination + piece_direction;
[INFO] [stderr]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `destination += piece_direction`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: you should consider adding a `Default` implementation for `searcher::Searcher`
[INFO] [stderr]   --> src/searcher.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 | /     pub fn new() -> Searcher {
[INFO] [stderr] 14 | |         Searcher {
[INFO] [stderr] 15 | |             move_generator: MoveGenerator::new(),
[INFO] [stderr] 16 | |             next_move: ChessBoard::new(),
[INFO] [stderr] ...  |
[INFO] [stderr] 19 | |         }
[INFO] [stderr] 20 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::new_without_default)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#new_without_default
[INFO] [stderr] help: try this
[INFO] [stderr]    |
[INFO] [stderr] 12 | impl Default for searcher::Searcher {
[INFO] [stderr] 13 |     fn default() -> Self {
[INFO] [stderr] 14 |         Self::new()
[INFO] [stderr] 15 |     }
[INFO] [stderr] 16 | }
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]   --> src/searcher.rs:37:20
[INFO] [stderr]    |
[INFO] [stderr] 37 |         if root && next_moves.len() == 0 {
[INFO] [stderr]    |                    ^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `next_moves.is_empty()`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::len_zero)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]   --> src/searcher.rs:51:19
[INFO] [stderr]    |
[INFO] [stderr] 51 |         } else if next_moves.len() == 0 {
[INFO] [stderr]    |                   ^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `next_moves.is_empty()`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: this function has too many arguments (8/7)
[INFO] [stderr]    --> src/searcher.rs:86:5
[INFO] [stderr]     |
[INFO] [stderr] 86  | /     fn alpha_beta_pruning(&mut self, current_node: &ChessBoard, depth: usize, alpha: i64, beta: i64, maximizing_player: bool, root: bool, even: bool) -> i64 {
[INFO] [stderr] 87  | |         if depth == 0 {
[INFO] [stderr] 88  | |             if even {
[INFO] [stderr] 89  | |                 return current_node.get_score()
[INFO] [stderr] ...   |
[INFO] [stderr] 166 | |         v
[INFO] [stderr] 167 | |     }
[INFO] [stderr]     | |_____^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::too_many_arguments)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#too_many_arguments
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]    --> src/searcher.rs:101:20
[INFO] [stderr]     |
[INFO] [stderr] 101 |         if root && next_moves.len() == 0 {
[INFO] [stderr]     |                    ^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `next_moves.is_empty()`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]    --> src/searcher.rs:115:19
[INFO] [stderr]     |
[INFO] [stderr] 115 |         } else if next_moves.len() == 0 {
[INFO] [stderr]     |                   ^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `next_moves.is_empty()`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: use of `unwrap_or` followed by a function call
[INFO] [stderr]   --> src/uci_interface.rs:13:25
[INFO] [stderr]    |
[INFO] [stderr] 13 |         let line = line.unwrap_or("null input".to_string());
[INFO] [stderr]    |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `unwrap_or_else(|_| "null input".to_string())`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::or_fun_call)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#or_fun_call
[INFO] [stderr] 
[INFO] [stderr] warning: you seem to be trying to use match for destructuring a single pattern. Consider using `if let`
[INFO] [stderr]   --> src/uci_interface.rs:83:9
[INFO] [stderr]    |
[INFO] [stderr] 83 | /         match token {
[INFO] [stderr] 84 | |             "moves" => {
[INFO] [stderr] 85 | |                 while let Some(chess_move) = token_sequence.next() {
[INFO] [stderr] 86 | |                     moves.push(chess_move.to_string());
[INFO] [stderr] ...  |
[INFO] [stderr] 89 | |             _ => {},
[INFO] [stderr] 90 | |         }
[INFO] [stderr]    | |_________^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::single_match)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stderr] help: try this
[INFO] [stderr]    |
[INFO] [stderr] 83 |         if let "moves" = token {
[INFO] [stderr] 84 |     while let Some(chess_move) = token_sequence.next() {
[INFO] [stderr] 85 |         moves.push(chess_move.to_string());
[INFO] [stderr] 86 |     }
[INFO] [stderr] 87 | }
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: you should consider adding a `Default` implementation for `game::Game`
[INFO] [stderr]   --> src/game.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 | /     pub fn new() -> Game {
[INFO] [stderr] 14 | |         Game {
[INFO] [stderr] 15 | |             current_position: ChessBoard::new(),
[INFO] [stderr] 16 | |             legal_moves: Vec::new(),
[INFO] [stderr] ...  |
[INFO] [stderr] 19 | |         }
[INFO] [stderr] 20 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#new_without_default
[INFO] [stderr] help: try this
[INFO] [stderr]    |
[INFO] [stderr] 12 | impl Default for game::Game {
[INFO] [stderr] 13 |     fn default() -> Self {
[INFO] [stderr] 14 |         Self::new()
[INFO] [stderr] 15 |     }
[INFO] [stderr] 16 | }
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `arsenic_chess_engine`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] warning: you should consider deriving a `Default` implementation for `chess_board::ChessBoard`
[INFO] [stderr]   --> src/chess_board/mod.rs:15:5
[INFO] [stderr]    |
[INFO] [stderr] 15 | /     pub fn new() -> ChessBoard {
[INFO] [stderr] 16 | |         ChessBoard {
[INFO] [stderr] 17 | |             board_vector: Vec::new(),
[INFO] [stderr] 18 | |             current_color: true,
[INFO] [stderr] ...  |
[INFO] [stderr] 25 | |         }
[INFO] [stderr] 26 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::new_without_default_derive)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#new_without_default_derive
[INFO] [stderr] help: try this
[INFO] [stderr]    |
[INFO] [stderr] 3  | #[derive(Default)]
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: defining a method called `clone` on this type; consider implementing the `std::clone::Clone` trait or choosing a less ambiguous name
[INFO] [stderr]   --> src/chess_board/mod.rs:41:5
[INFO] [stderr]    |
[INFO] [stderr] 41 | /     pub fn clone(&self) -> ChessBoard {
[INFO] [stderr] 42 | |         ChessBoard {
[INFO] [stderr] 43 | |             board_vector: self.board_vector.clone(),
[INFO] [stderr] 44 | |             last_move: self.last_move.clone(),
[INFO] [stderr] 45 | |             ..*self
[INFO] [stderr] 46 | |         }
[INFO] [stderr] 47 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::should_implement_trait)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#should_implement_trait
[INFO] [stderr] 
[INFO] [stderr] warning: this if-then-else expression returns a bool literal
[INFO] [stderr]    --> src/chess_board/mod.rs:572:9
[INFO] [stderr]     |
[INFO] [stderr] 572 | /         if self.en_passant_lifetime > 0 {
[INFO] [stderr] 573 | |             true
[INFO] [stderr] 574 | |         } else {
[INFO] [stderr] 575 | |             false
[INFO] [stderr] 576 | |         }
[INFO] [stderr]     | |_________^ help: you can reduce it to: `self.en_passant_lifetime > 0`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::needless_bool)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_bool
[INFO] [stderr] 
[INFO] [stderr] warning: you should consider deriving a `Default` implementation for `move_generator::MoveGenerator`
[INFO] [stderr]   --> src/move_generator.rs:19:5
[INFO] [stderr]    |
[INFO] [stderr] 19 | /     pub fn new() -> MoveGenerator {
[INFO] [stderr] 20 | |         let mut directions: HashMap<char, Vec<i64>> = HashMap::new();
[INFO] [stderr] 21 | |
[INFO] [stderr] 22 | |         directions.insert('P', vec![N, N+N, N+W, N+E]);
[INFO] [stderr] ...  |
[INFO] [stderr] 31 | |         }
[INFO] [stderr] 32 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#new_without_default_derive
[INFO] [stderr] help: try this
[INFO] [stderr]    |
[INFO] [stderr] 14 | #[derive(Default)]
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: manual implementation of an assign operation
[INFO] [stderr]   --> src/move_generator.rs:52:21
[INFO] [stderr]    |
[INFO] [stderr] 52 |                     destination = destination + piece_direction;
[INFO] [stderr]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `destination += piece_direction`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::assign_op_pattern)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: useless use of `vec!`
[INFO] [stderr]    --> src/move_generator.rs:114:51
[INFO] [stderr]     |
[INFO] [stderr] 114 |                             for promoted_piece in vec!['R', 'N', 'B', 'Q'] {
[INFO] [stderr]     |                                                   ^^^^^^^^^^^^^^^^^^^^^^^^ help: you can use a slice directly: `&['R', 'N', 'B', 'Q']`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::useless_vec)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_vec
[INFO] [stderr] 
[INFO] [stderr] error: this .into_iter() call is equivalent to .iter() and will not move the array
[INFO] [stderr]    --> src/move_generator.rs:193:54
[INFO] [stderr]     |
[INFO] [stderr] 193 |         for &piece in ['P', 'N', 'B', 'R', 'Q', 'K'].into_iter() {
[INFO] [stderr]     |                                                      ^^^^^^^^^ help: call directly: `iter`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[deny(clippy::into_iter_on_array)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#into_iter_on_array
[INFO] [stderr] 
[INFO] [stderr] warning: manual implementation of an assign operation
[INFO] [stderr]    --> src/move_generator.rs:198:21
[INFO] [stderr]     |
[INFO] [stderr] 198 |                     destination = destination + piece_direction;
[INFO] [stderr]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `destination += piece_direction`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: you should consider adding a `Default` implementation for `searcher::Searcher`
[INFO] [stderr]   --> src/searcher.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 | /     pub fn new() -> Searcher {
[INFO] [stderr] 14 | |         Searcher {
[INFO] [stderr] 15 | |             move_generator: MoveGenerator::new(),
[INFO] [stderr] 16 | |             next_move: ChessBoard::new(),
[INFO] [stderr] ...  |
[INFO] [stderr] 19 | |         }
[INFO] [stderr] 20 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::new_without_default)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#new_without_default
[INFO] [stderr] help: try this
[INFO] [stderr]    |
[INFO] [stderr] 12 | impl Default for searcher::Searcher {
[INFO] [stderr] 13 |     fn default() -> Self {
[INFO] [stderr] 14 |         Self::new()
[INFO] [stderr] 15 |     }
[INFO] [stderr] 16 | }
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]   --> src/searcher.rs:37:20
[INFO] [stderr]    |
[INFO] [stderr] 37 |         if root && next_moves.len() == 0 {
[INFO] [stderr]    |                    ^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `next_moves.is_empty()`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::len_zero)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]   --> src/searcher.rs:51:19
[INFO] [stderr]    |
[INFO] [stderr] 51 |         } else if next_moves.len() == 0 {
[INFO] [stderr]    |                   ^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `next_moves.is_empty()`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: this function has too many arguments (8/7)
[INFO] [stderr]    --> src/searcher.rs:86:5
[INFO] [stderr]     |
[INFO] [stderr] 86  | /     fn alpha_beta_pruning(&mut self, current_node: &ChessBoard, depth: usize, alpha: i64, beta: i64, maximizing_player: bool, root: bool, even: bool) -> i64 {
[INFO] [stderr] 87  | |         if depth == 0 {
[INFO] [stderr] 88  | |             if even {
[INFO] [stderr] 89  | |                 return current_node.get_score()
[INFO] [stderr] ...   |
[INFO] [stderr] 166 | |         v
[INFO] [stderr] 167 | |     }
[INFO] [stderr]     | |_____^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::too_many_arguments)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#too_many_arguments
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]    --> src/searcher.rs:101:20
[INFO] [stderr]     |
[INFO] [stderr] 101 |         if root && next_moves.len() == 0 {
[INFO] [stderr]     |                    ^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `next_moves.is_empty()`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]    --> src/searcher.rs:115:19
[INFO] [stderr]     |
[INFO] [stderr] 115 |         } else if next_moves.len() == 0 {
[INFO] [stderr]     |                   ^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `next_moves.is_empty()`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: use of `unwrap_or` followed by a function call
[INFO] [stderr]   --> src/uci_interface.rs:13:25
[INFO] [stderr]    |
[INFO] [stderr] 13 |         let line = line.unwrap_or("null input".to_string());
[INFO] [stderr]    |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `unwrap_or_else(|_| "null input".to_string())`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::or_fun_call)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#or_fun_call
[INFO] [stderr] 
[INFO] [stderr] warning: you seem to be trying to use match for destructuring a single pattern. Consider using `if let`
[INFO] [stderr]   --> src/uci_interface.rs:83:9
[INFO] [stderr]    |
[INFO] [stderr] 83 | /         match token {
[INFO] [stderr] 84 | |             "moves" => {
[INFO] [stderr] 85 | |                 while let Some(chess_move) = token_sequence.next() {
[INFO] [stderr] 86 | |                     moves.push(chess_move.to_string());
[INFO] [stderr] ...  |
[INFO] [stderr] 89 | |             _ => {},
[INFO] [stderr] 90 | |         }
[INFO] [stderr]    | |_________^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::single_match)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stderr] help: try this
[INFO] [stderr]    |
[INFO] [stderr] 83 |         if let "moves" = token {
[INFO] [stderr] 84 |     while let Some(chess_move) = token_sequence.next() {
[INFO] [stderr] 85 |         moves.push(chess_move.to_string());
[INFO] [stderr] 86 |     }
[INFO] [stderr] 87 | }
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: you should consider adding a `Default` implementation for `game::Game`
[INFO] [stderr]   --> src/game.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 | /     pub fn new() -> Game {
[INFO] [stderr] 14 | |         Game {
[INFO] [stderr] 15 | |             current_position: ChessBoard::new(),
[INFO] [stderr] 16 | |             legal_moves: Vec::new(),
[INFO] [stderr] ...  |
[INFO] [stderr] 19 | |         }
[INFO] [stderr] 20 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#new_without_default
[INFO] [stderr] help: try this
[INFO] [stderr]    |
[INFO] [stderr] 12 | impl Default for game::Game {
[INFO] [stderr] 13 |     fn default() -> Self {
[INFO] [stderr] 14 |         Self::new()
[INFO] [stderr] 15 |     }
[INFO] [stderr] 16 | }
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `arsenic_chess_engine`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "7733c656a6c22219a3f64fb97f617eaf7d9d6d5b4b137c8f99b8c24c9b8dabf6"`
[INFO] running `"docker" "rm" "-f" "7733c656a6c22219a3f64fb97f617eaf7d9d6d5b4b137c8f99b8c24c9b8dabf6"`
[INFO] [stdout] 7733c656a6c22219a3f64fb97f617eaf7d9d6d5b4b137c8f99b8c24c9b8dabf6