[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/beta-1.38-1/sources/1.37.0/gh/kempchee/rust_chess_move_generator"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/kempchee/rust_chess_move_generator'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/kempchee/rust_chess_move_generator" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/kempchee/rust_chess_move_generator"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/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 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of kempchee/rust_chess_move_generator on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "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/beta-1.38-1/sources/1.37.0/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/beta-1.38-1/sources/beta-2019-08-13/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/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] testing kempchee/rust_chess_move_generator against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/kempchee/rust_chess_move_generator:/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=warn" "-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" "+beta-2019-08-13" "build" "--frozen"`
[INFO] [stdout] e17f0f2af0ebbb15ffb93a64da5c9f2f67a9bacf8867cfa35d7159faf44e018c
[INFO] running `"docker" "start" "-a" "e17f0f2af0ebbb15ffb93a64da5c9f2f67a9bacf8867cfa35d7159faf44e018c"`
[INFO] [stderr]    Compiling 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: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:56:13
[INFO] [stderr]    |
[INFO] [stderr] 56 |         let mut piece_locations=duplicate_moves.get(key).unwrap().clone();
[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]     Finished dev [unoptimized + debuginfo] target(s) in 1.49s
[INFO] running `"docker" "inspect" "e17f0f2af0ebbb15ffb93a64da5c9f2f67a9bacf8867cfa35d7159faf44e018c"`
[INFO] running `"docker" "rm" "-f" "e17f0f2af0ebbb15ffb93a64da5c9f2f67a9bacf8867cfa35d7159faf44e018c"`
[INFO] [stdout] e17f0f2af0ebbb15ffb93a64da5c9f2f67a9bacf8867cfa35d7159faf44e018c
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/kempchee/rust_chess_move_generator:/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=warn" "-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" "+beta-2019-08-13" "test" "--frozen" "--no-run"`
[INFO] [stdout] ebb1d5994b5700e107825c13e8fdddc3aed28fa2ce55b9640a5ada5f821b821d
[INFO] running `"docker" "start" "-a" "ebb1d5994b5700e107825c13e8fdddc3aed28fa2ce55b9640a5ada5f821b821d"`
[INFO] [stderr]    Compiling 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: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:56:13
[INFO] [stderr]    |
[INFO] [stderr] 56 |         let mut piece_locations=duplicate_moves.get(key).unwrap().clone();
[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]     Finished dev [unoptimized + debuginfo] target(s) in 0.88s
[INFO] running `"docker" "inspect" "ebb1d5994b5700e107825c13e8fdddc3aed28fa2ce55b9640a5ada5f821b821d"`
[INFO] running `"docker" "rm" "-f" "ebb1d5994b5700e107825c13e8fdddc3aed28fa2ce55b9640a5ada5f821b821d"`
[INFO] [stdout] ebb1d5994b5700e107825c13e8fdddc3aed28fa2ce55b9640a5ada5f821b821d
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/kempchee/rust_chess_move_generator:/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=warn" "-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" "+beta-2019-08-13" "test" "--frozen"`
[INFO] [stdout] 271acc38a42c132f613abb969cb6836d72ddb192ee6c3c320b1415da077c4719
[INFO] running `"docker" "start" "-a" "271acc38a42c132f613abb969cb6836d72ddb192ee6c3c320b1415da077c4719"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/move_generator-25953517f1c9c9ca
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "271acc38a42c132f613abb969cb6836d72ddb192ee6c3c320b1415da077c4719"`
[INFO] running `"docker" "rm" "-f" "271acc38a42c132f613abb969cb6836d72ddb192ee6c3c320b1415da077c4719"`
[INFO] [stdout] 271acc38a42c132f613abb969cb6836d72ddb192ee6c3c320b1415da077c4719