[INFO] updating cached repository kempchee/rust_chess_move_generator
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/kempchee/rust_chess_move_generator
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/kempchee/rust_chess_move_generator" "work/ex/pr-60162/sources/master#a850a426491e14186af2250549bf41256b5938d2/gh/kempchee/rust_chess_move_generator"`
[INFO] [stderr] Cloning into 'work/ex/pr-60162/sources/master#a850a426491e14186af2250549bf41256b5938d2/gh/kempchee/rust_chess_move_generator'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/kempchee/rust_chess_move_generator" "work/ex/pr-60162/sources/try#06a150c7d11500b41499224f165e9de1de096768/gh/kempchee/rust_chess_move_generator"`
[INFO] [stderr] Cloning into 'work/ex/pr-60162/sources/try#06a150c7d11500b41499224f165e9de1de096768/gh/kempchee/rust_chess_move_generator'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 803e4be8c86d863422b61f80c27f4d1e7afb11d0
[INFO] sha for GitHub repo kempchee/rust_chess_move_generator: 803e4be8c86d863422b61f80c27f4d1e7afb11d0
[INFO] validating manifest of kempchee/rust_chess_move_generator on toolchain master#a850a426491e14186af2250549bf41256b5938d2
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+a850a426491e14186af2250549bf41256b5938d2-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of kempchee/rust_chess_move_generator on toolchain try#06a150c7d11500b41499224f165e9de1de096768
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+06a150c7d11500b41499224f165e9de1de096768-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing kempchee/rust_chess_move_generator
[INFO] finished frobbing kempchee/rust_chess_move_generator
[INFO] frobbed toml for kempchee/rust_chess_move_generator written to work/ex/pr-60162/sources/master#a850a426491e14186af2250549bf41256b5938d2/gh/kempchee/rust_chess_move_generator/Cargo.toml
[INFO] started frobbing kempchee/rust_chess_move_generator
[INFO] finished frobbing kempchee/rust_chess_move_generator
[INFO] frobbed toml for kempchee/rust_chess_move_generator written to work/ex/pr-60162/sources/try#06a150c7d11500b41499224f165e9de1de096768/gh/kempchee/rust_chess_move_generator/Cargo.toml
[INFO] crate kempchee/rust_chess_move_generator already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+a850a426491e14186af2250549bf41256b5938d2-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+06a150c7d11500b41499224f165e9de1de096768-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking kempchee/rust_chess_move_generator against master#a850a426491e14186af2250549bf41256b5938d2 for pr-60162
[INFO] running `"docker" "create" "-v" "/mnt/crater-raid/crater/work/local/target-dirs/pr-60162/worker-1/master#a850a426491e14186af2250549bf41256b5938d2:/opt/crater/target:rw,Z" "-v" "/mnt/crater-raid/crater/work/ex/pr-60162/sources/master#a850a426491e14186af2250549bf41256b5938d2/gh/kempchee/rust_chess_move_generator:/opt/crater/workdir:ro,Z" "-v" "/mnt/crater-raid/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/crater-raid/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" "+a850a426491e14186af2250549bf41256b5938d2-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 353d8851e6fd152ae093909d4d0bd3d40d8eaaa127e3f279b77b00601c2babc6
[INFO] running `"docker" "start" "-a" "353d8851e6fd152ae093909d4d0bd3d40d8eaaa127e3f279b77b00601c2babc6"`
[INFO] [stderr]     Checking move_generator v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `column`
[INFO] [stderr]   --> src/main.rs:21:27
[INFO] [stderr]    |
[INFO] [stderr] 21 |         for (column_index,column) in row.iter().enumerate(){
[INFO] [stderr]    |                           ^^^^^^ help: consider prefixing with an underscore: `_column`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `converted_fen`
[INFO] [stderr]    --> src/main.rs:103:9
[INFO] [stderr]     |
[INFO] [stderr] 103 |     let converted_fen=convert_array_to_fen(board_array,side_to_play,castling_availability,enpassant_target,half_move_clock,full_move_number);
[INFO] [stderr]     |         ^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_converted_fen`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `start_row`
[INFO] [stderr]    --> src/main.rs:219:29
[INFO] [stderr]     |
[INFO] [stderr] 219 | fn add_available_moves_pawn(start_row:usize,start_column:usize,board_array:&[[&str;8];8],available_moves:&mut Vec<String>,color:&str)->(){
[INFO] [stderr]     |                             ^^^^^^^^^ help: consider prefixing with an underscore: `_start_row`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `start_column`
[INFO] [stderr]    --> src/main.rs:219:45
[INFO] [stderr]     |
[INFO] [stderr] 219 | fn add_available_moves_pawn(start_row:usize,start_column:usize,board_array:&[[&str;8];8],available_moves:&mut Vec<String>,color:&str)->(){
[INFO] [stderr]     |                                             ^^^^^^^^^^^^ help: consider prefixing with an underscore: `_start_column`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `board_array`
[INFO] [stderr]    --> src/main.rs:219:64
[INFO] [stderr]     |
[INFO] [stderr] 219 | fn add_available_moves_pawn(start_row:usize,start_column:usize,board_array:&[[&str;8];8],available_moves:&mut Vec<String>,color:&str)->(){
[INFO] [stderr]     |                                                                ^^^^^^^^^^^ help: consider prefixing with an underscore: `_board_array`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `available_moves`
[INFO] [stderr]    --> src/main.rs:219:90
[INFO] [stderr]     |
[INFO] [stderr] 219 | fn add_available_moves_pawn(start_row:usize,start_column:usize,board_array:&[[&str;8];8],available_moves:&mut Vec<String>,color:&str)->(){
[INFO] [stderr]     |                                                                                          ^^^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_available_moves`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `color`
[INFO] [stderr]    --> src/main.rs:219:123
[INFO] [stderr]     |
[INFO] [stderr] 219 | fn add_available_moves_pawn(start_row:usize,start_column:usize,board_array:&[[&str;8];8],available_moves:&mut Vec<String>,color:&str)->(){
[INFO] [stderr]     |                                                                                                                           ^^^^^ help: consider prefixing with an underscore: `_color`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `start_row`
[INFO] [stderr]    --> src/main.rs:223:31
[INFO] [stderr]     |
[INFO] [stderr] 223 | fn add_available_moves_bishop(start_row:usize,start_column:usize,board_array:&[[&str;8];8],available_moves:&mut Vec<String>,color:&str)->(){
[INFO] [stderr]     |                               ^^^^^^^^^ help: consider prefixing with an underscore: `_start_row`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `start_column`
[INFO] [stderr]    --> src/main.rs:223:47
[INFO] [stderr]     |
[INFO] [stderr] 223 | fn add_available_moves_bishop(start_row:usize,start_column:usize,board_array:&[[&str;8];8],available_moves:&mut Vec<String>,color:&str)->(){
[INFO] [stderr]     |                                               ^^^^^^^^^^^^ help: consider prefixing with an underscore: `_start_column`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `board_array`
[INFO] [stderr]    --> src/main.rs:223:66
[INFO] [stderr]     |
[INFO] [stderr] 223 | fn add_available_moves_bishop(start_row:usize,start_column:usize,board_array:&[[&str;8];8],available_moves:&mut Vec<String>,color:&str)->(){
[INFO] [stderr]     |                                                                  ^^^^^^^^^^^ help: consider prefixing with an underscore: `_board_array`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `available_moves`
[INFO] [stderr]    --> src/main.rs:223:92
[INFO] [stderr]     |
[INFO] [stderr] 223 | fn add_available_moves_bishop(start_row:usize,start_column:usize,board_array:&[[&str;8];8],available_moves:&mut Vec<String>,color:&str)->(){
[INFO] [stderr]     |                                                                                            ^^^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_available_moves`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `color`
[INFO] [stderr]    --> src/main.rs:223:125
[INFO] [stderr]     |
[INFO] [stderr] 223 | fn add_available_moves_bishop(start_row:usize,start_column:usize,board_array:&[[&str;8];8],available_moves:&mut Vec<String>,color:&str)->(){
[INFO] [stderr]     |                                                                                                                             ^^^^^ help: consider prefixing with an underscore: `_color`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `start_row`
[INFO] [stderr]    --> src/main.rs:227:31
[INFO] [stderr]     |
[INFO] [stderr] 227 | fn add_available_moves_knight(start_row:usize,start_column:usize,board_array:&[[&str;8];8],available_moves:&mut Vec<String>,color:&str)->(){
[INFO] [stderr]     |                               ^^^^^^^^^ help: consider prefixing with an underscore: `_start_row`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `start_column`
[INFO] [stderr]    --> src/main.rs:227:47
[INFO] [stderr]     |
[INFO] [stderr] 227 | fn add_available_moves_knight(start_row:usize,start_column:usize,board_array:&[[&str;8];8],available_moves:&mut Vec<String>,color:&str)->(){
[INFO] [stderr]     |                                               ^^^^^^^^^^^^ help: consider prefixing with an underscore: `_start_column`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `board_array`
[INFO] [stderr]    --> src/main.rs:227:66
[INFO] [stderr]     |
[INFO] [stderr] 227 | fn add_available_moves_knight(start_row:usize,start_column:usize,board_array:&[[&str;8];8],available_moves:&mut Vec<String>,color:&str)->(){
[INFO] [stderr]     |                                                                  ^^^^^^^^^^^ help: consider prefixing with an underscore: `_board_array`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `available_moves`
[INFO] [stderr]    --> src/main.rs:227:92
[INFO] [stderr]     |
[INFO] [stderr] 227 | fn add_available_moves_knight(start_row:usize,start_column:usize,board_array:&[[&str;8];8],available_moves:&mut Vec<String>,color:&str)->(){
[INFO] [stderr]     |                                                                                            ^^^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_available_moves`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `color`
[INFO] [stderr]    --> src/main.rs:227:125
[INFO] [stderr]     |
[INFO] [stderr] 227 | fn add_available_moves_knight(start_row:usize,start_column:usize,board_array:&[[&str;8];8],available_moves:&mut Vec<String>,color:&str)->(){
[INFO] [stderr]     |                                                                                                                             ^^^^^ help: consider prefixing with an underscore: `_color`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `start_row`
[INFO] [stderr]    --> src/main.rs:231:29
[INFO] [stderr]     |
[INFO] [stderr] 231 | fn add_available_moves_king(start_row:usize,start_column:usize,board_array:&[[&str;8];8],available_moves:&mut Vec<String>,color:&str)->(){
[INFO] [stderr]     |                             ^^^^^^^^^ help: consider prefixing with an underscore: `_start_row`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `start_column`
[INFO] [stderr]    --> src/main.rs:231:45
[INFO] [stderr]     |
[INFO] [stderr] 231 | fn add_available_moves_king(start_row:usize,start_column:usize,board_array:&[[&str;8];8],available_moves:&mut Vec<String>,color:&str)->(){
[INFO] [stderr]     |                                             ^^^^^^^^^^^^ help: consider prefixing with an underscore: `_start_column`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `board_array`
[INFO] [stderr]    --> src/main.rs:231:64
[INFO] [stderr]     |
[INFO] [stderr] 231 | fn add_available_moves_king(start_row:usize,start_column:usize,board_array:&[[&str;8];8],available_moves:&mut Vec<String>,color:&str)->(){
[INFO] [stderr]     |                                                                ^^^^^^^^^^^ help: consider prefixing with an underscore: `_board_array`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `available_moves`
[INFO] [stderr]    --> src/main.rs:231:90
[INFO] [stderr]     |
[INFO] [stderr] 231 | fn add_available_moves_king(start_row:usize,start_column:usize,board_array:&[[&str;8];8],available_moves:&mut Vec<String>,color:&str)->(){
[INFO] [stderr]     |                                                                                          ^^^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_available_moves`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `color`
[INFO] [stderr]    --> src/main.rs:231:123
[INFO] [stderr]     |
[INFO] [stderr] 231 | fn add_available_moves_king(start_row:usize,start_column:usize,board_array:&[[&str;8];8],available_moves:&mut Vec<String>,color:&str)->(){
[INFO] [stderr]     |                                                                                                                           ^^^^^ help: consider prefixing with an underscore: `_color`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `start_row`
[INFO] [stderr]    --> src/main.rs:235:30
[INFO] [stderr]     |
[INFO] [stderr] 235 | fn add_available_moves_queen(start_row:usize,start_column:usize,board_array:&[[&str;8];8],available_moves:&mut Vec<String>,color:&str)->(){
[INFO] [stderr]     |                              ^^^^^^^^^ help: consider prefixing with an underscore: `_start_row`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `start_column`
[INFO] [stderr]    --> src/main.rs:235:46
[INFO] [stderr]     |
[INFO] [stderr] 235 | fn add_available_moves_queen(start_row:usize,start_column:usize,board_array:&[[&str;8];8],available_moves:&mut Vec<String>,color:&str)->(){
[INFO] [stderr]     |                                              ^^^^^^^^^^^^ help: consider prefixing with an underscore: `_start_column`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `board_array`
[INFO] [stderr]    --> src/main.rs:235:65
[INFO] [stderr]     |
[INFO] [stderr] 235 | fn add_available_moves_queen(start_row:usize,start_column:usize,board_array:&[[&str;8];8],available_moves:&mut Vec<String>,color:&str)->(){
[INFO] [stderr]     |                                                                 ^^^^^^^^^^^ help: consider prefixing with an underscore: `_board_array`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `available_moves`
[INFO] [stderr]    --> src/main.rs:235:91
[INFO] [stderr]     |
[INFO] [stderr] 235 | fn add_available_moves_queen(start_row:usize,start_column:usize,board_array:&[[&str;8];8],available_moves:&mut Vec<String>,color:&str)->(){
[INFO] [stderr]     |                                                                                           ^^^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_available_moves`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `color`
[INFO] [stderr]    --> src/main.rs:235:124
[INFO] [stderr]     |
[INFO] [stderr] 235 | fn add_available_moves_queen(start_row:usize,start_column:usize,board_array:&[[&str;8];8],available_moves:&mut Vec<String>,color:&str)->(){
[INFO] [stderr]     |                                                                                                                            ^^^^^ help: consider prefixing with an underscore: `_color`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]    --> src/main.rs:249:21
[INFO] [stderr]     |
[INFO] [stderr] 249 |                 for i in 0..char.parse::<i64>().unwrap(){
[INFO] [stderr]     |                     ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `column`
[INFO] [stderr]   --> src/main.rs:21:27
[INFO] [stderr]    |
[INFO] [stderr] 21 |         for (column_index,column) in row.iter().enumerate(){
[INFO] [stderr]    |                           ^^^^^^ help: consider prefixing with an underscore: `_column`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `converted_fen`
[INFO] [stderr]    --> src/main.rs:103:9
[INFO] [stderr]     |
[INFO] [stderr] 103 |     let converted_fen=convert_array_to_fen(board_array,side_to_play,castling_availability,enpassant_target,half_move_clock,full_move_number);
[INFO] [stderr]     |         ^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_converted_fen`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `start_row`
[INFO] [stderr]    --> src/main.rs:219:29
[INFO] [stderr]     |
[INFO] [stderr] 219 | fn add_available_moves_pawn(start_row:usize,start_column:usize,board_array:&[[&str;8];8],available_moves:&mut Vec<String>,color:&str)->(){
[INFO] [stderr]     |                             ^^^^^^^^^ help: consider prefixing with an underscore: `_start_row`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `start_column`
[INFO] [stderr]    --> src/main.rs:219:45
[INFO] [stderr]     |
[INFO] [stderr] 219 | fn add_available_moves_pawn(start_row:usize,start_column:usize,board_array:&[[&str;8];8],available_moves:&mut Vec<String>,color:&str)->(){
[INFO] [stderr]     |                                             ^^^^^^^^^^^^ help: consider prefixing with an underscore: `_start_column`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `board_array`
[INFO] [stderr]    --> src/main.rs:219:64
[INFO] [stderr]     |
[INFO] [stderr] 219 | fn add_available_moves_pawn(start_row:usize,start_column:usize,board_array:&[[&str;8];8],available_moves:&mut Vec<String>,color:&str)->(){
[INFO] [stderr]     |                                                                ^^^^^^^^^^^ help: consider prefixing with an underscore: `_board_array`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `available_moves`
[INFO] [stderr]    --> src/main.rs:219:90
[INFO] [stderr]     |
[INFO] [stderr] 219 | fn add_available_moves_pawn(start_row:usize,start_column:usize,board_array:&[[&str;8];8],available_moves:&mut Vec<String>,color:&str)->(){
[INFO] [stderr]     |                                                                                          ^^^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_available_moves`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `color`
[INFO] [stderr]    --> src/main.rs:219:123
[INFO] [stderr]     |
[INFO] [stderr] 219 | fn add_available_moves_pawn(start_row:usize,start_column:usize,board_array:&[[&str;8];8],available_moves:&mut Vec<String>,color:&str)->(){
[INFO] [stderr]     |                                                                                                                           ^^^^^ help: consider prefixing with an underscore: `_color`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `start_row`
[INFO] [stderr]    --> src/main.rs:223:31
[INFO] [stderr]     |
[INFO] [stderr] 223 | fn add_available_moves_bishop(start_row:usize,start_column:usize,board_array:&[[&str;8];8],available_moves:&mut Vec<String>,color:&str)->(){
[INFO] [stderr]     |                               ^^^^^^^^^ help: consider prefixing with an underscore: `_start_row`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `start_column`
[INFO] [stderr]    --> src/main.rs:223:47
[INFO] [stderr]     |
[INFO] [stderr] 223 | fn add_available_moves_bishop(start_row:usize,start_column:usize,board_array:&[[&str;8];8],available_moves:&mut Vec<String>,color:&str)->(){
[INFO] [stderr]     |                                               ^^^^^^^^^^^^ help: consider prefixing with an underscore: `_start_column`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `board_array`
[INFO] [stderr]    --> src/main.rs:223:66
[INFO] [stderr]     |
[INFO] [stderr] 223 | fn add_available_moves_bishop(start_row:usize,start_column:usize,board_array:&[[&str;8];8],available_moves:&mut Vec<String>,color:&str)->(){
[INFO] [stderr]     |                                                                  ^^^^^^^^^^^ help: consider prefixing with an underscore: `_board_array`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `available_moves`
[INFO] [stderr]    --> src/main.rs:223:92
[INFO] [stderr]     |
[INFO] [stderr] 223 | fn add_available_moves_bishop(start_row:usize,start_column:usize,board_array:&[[&str;8];8],available_moves:&mut Vec<String>,color:&str)->(){
[INFO] [stderr]     |                                                                                            ^^^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_available_moves`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `color`
[INFO] [stderr]    --> src/main.rs:223:125
[INFO] [stderr]     |
[INFO] [stderr] 223 | fn add_available_moves_bishop(start_row:usize,start_column:usize,board_array:&[[&str;8];8],available_moves:&mut Vec<String>,color:&str)->(){
[INFO] [stderr]     |                                                                                                                             ^^^^^ help: consider prefixing with an underscore: `_color`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `start_row`
[INFO] [stderr]    --> src/main.rs:227:31
[INFO] [stderr]     |
[INFO] [stderr] 227 | fn add_available_moves_knight(start_row:usize,start_column:usize,board_array:&[[&str;8];8],available_moves:&mut Vec<String>,color:&str)->(){
[INFO] [stderr]     |                               ^^^^^^^^^ help: consider prefixing with an underscore: `_start_row`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `start_column`
[INFO] [stderr]    --> src/main.rs:227:47
[INFO] [stderr]     |
[INFO] [stderr] 227 | fn add_available_moves_knight(start_row:usize,start_column:usize,board_array:&[[&str;8];8],available_moves:&mut Vec<String>,color:&str)->(){
[INFO] [stderr]     |                                               ^^^^^^^^^^^^ help: consider prefixing with an underscore: `_start_column`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `board_array`
[INFO] [stderr]    --> src/main.rs:227:66
[INFO] [stderr]     |
[INFO] [stderr] 227 | fn add_available_moves_knight(start_row:usize,start_column:usize,board_array:&[[&str;8];8],available_moves:&mut Vec<String>,color:&str)->(){
[INFO] [stderr]     |                                                                  ^^^^^^^^^^^ help: consider prefixing with an underscore: `_board_array`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `available_moves`
[INFO] [stderr]    --> src/main.rs:227:92
[INFO] [stderr]     |
[INFO] [stderr] 227 | fn add_available_moves_knight(start_row:usize,start_column:usize,board_array:&[[&str;8];8],available_moves:&mut Vec<String>,color:&str)->(){
[INFO] [stderr]     |                                                                                            ^^^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_available_moves`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `color`
[INFO] [stderr]    --> src/main.rs:227:125
[INFO] [stderr]     |
[INFO] [stderr] 227 | fn add_available_moves_knight(start_row:usize,start_column:usize,board_array:&[[&str;8];8],available_moves:&mut Vec<String>,color:&str)->(){
[INFO] [stderr]     |                                                                                                                             ^^^^^ help: consider prefixing with an underscore: `_color`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `start_row`
[INFO] [stderr]    --> src/main.rs:231:29
[INFO] [stderr]     |
[INFO] [stderr] 231 | fn add_available_moves_king(start_row:usize,start_column:usize,board_array:&[[&str;8];8],available_moves:&mut Vec<String>,color:&str)->(){
[INFO] [stderr]     |                             ^^^^^^^^^ help: consider prefixing with an underscore: `_start_row`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `start_column`
[INFO] [stderr]    --> src/main.rs:231:45
[INFO] [stderr]     |
[INFO] [stderr] 231 | fn add_available_moves_king(start_row:usize,start_column:usize,board_array:&[[&str;8];8],available_moves:&mut Vec<String>,color:&str)->(){
[INFO] [stderr]     |                                             ^^^^^^^^^^^^ help: consider prefixing with an underscore: `_start_column`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `board_array`
[INFO] [stderr]    --> src/main.rs:231:64
[INFO] [stderr]     |
[INFO] [stderr] 231 | fn add_available_moves_king(start_row:usize,start_column:usize,board_array:&[[&str;8];8],available_moves:&mut Vec<String>,color:&str)->(){
[INFO] [stderr]     |                                                                ^^^^^^^^^^^ help: consider prefixing with an underscore: `_board_array`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `available_moves`
[INFO] [stderr]    --> src/main.rs:231:90
[INFO] [stderr]     |
[INFO] [stderr] 231 | fn add_available_moves_king(start_row:usize,start_column:usize,board_array:&[[&str;8];8],available_moves:&mut Vec<String>,color:&str)->(){
[INFO] [stderr]     |                                                                                          ^^^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_available_moves`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `color`
[INFO] [stderr]    --> src/main.rs:231:123
[INFO] [stderr]     |
[INFO] [stderr] 231 | fn add_available_moves_king(start_row:usize,start_column:usize,board_array:&[[&str;8];8],available_moves:&mut Vec<String>,color:&str)->(){
[INFO] [stderr]     |                                                                                                                           ^^^^^ help: consider prefixing with an underscore: `_color`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `start_row`
[INFO] [stderr]    --> src/main.rs:235:30
[INFO] [stderr]     |
[INFO] [stderr] 235 | fn add_available_moves_queen(start_row:usize,start_column:usize,board_array:&[[&str;8];8],available_moves:&mut Vec<String>,color:&str)->(){
[INFO] [stderr]     |                              ^^^^^^^^^ help: consider prefixing with an underscore: `_start_row`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `start_column`
[INFO] [stderr]    --> src/main.rs:235:46
[INFO] [stderr]     |
[INFO] [stderr] 235 | fn add_available_moves_queen(start_row:usize,start_column:usize,board_array:&[[&str;8];8],available_moves:&mut Vec<String>,color:&str)->(){
[INFO] [stderr]     |                                              ^^^^^^^^^^^^ help: consider prefixing with an underscore: `_start_column`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `board_array`
[INFO] [stderr]    --> src/main.rs:235:65
[INFO] [stderr]     |
[INFO] [stderr] 235 | fn add_available_moves_queen(start_row:usize,start_column:usize,board_array:&[[&str;8];8],available_moves:&mut Vec<String>,color:&str)->(){
[INFO] [stderr]     |                                                                 ^^^^^^^^^^^ help: consider prefixing with an underscore: `_board_array`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `available_moves`
[INFO] [stderr]    --> src/main.rs:235:91
[INFO] [stderr]     |
[INFO] [stderr] 235 | fn add_available_moves_queen(start_row:usize,start_column:usize,board_array:&[[&str;8];8],available_moves:&mut Vec<String>,color:&str)->(){
[INFO] [stderr]     |                                                                                           ^^^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_available_moves`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `color`
[INFO] [stderr]    --> src/main.rs:235:124
[INFO] [stderr]     |
[INFO] [stderr] 235 | fn add_available_moves_queen(start_row:usize,start_column:usize,board_array:&[[&str;8];8],available_moves:&mut Vec<String>,color:&str)->(){
[INFO] [stderr]     |                                                                                                                            ^^^^^ help: consider prefixing with an underscore: `_color`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]    --> src/main.rs:249:21
[INFO] [stderr]     |
[INFO] [stderr] 249 |                 for i in 0..char.parse::<i64>().unwrap(){
[INFO] [stderr]     |                     ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/main.rs:136:9
[INFO] [stderr]     |
[INFO] [stderr] 136 |     let mut notation_letter:String="R".to_string();
[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: variable does not need to be mutable
[INFO] [stderr]    --> src/main.rs:136:9
[INFO] [stderr]     |
[INFO] [stderr] 136 |     let mut notation_letter:String="R".to_string();
[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]     Finished dev [unoptimized + debuginfo] target(s) in 0.80s
[INFO] running `"docker" "inspect" "353d8851e6fd152ae093909d4d0bd3d40d8eaaa127e3f279b77b00601c2babc6"`
[INFO] running `"docker" "rm" "-f" "353d8851e6fd152ae093909d4d0bd3d40d8eaaa127e3f279b77b00601c2babc6"`
[INFO] [stdout] 353d8851e6fd152ae093909d4d0bd3d40d8eaaa127e3f279b77b00601c2babc6