[INFO] cloning repository https://github.com/13christopherb/chess
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/13christopherb/chess" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F13christopherb%2Fchess", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F13christopherb%2Fchess'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] fb36a895dd62edd6830da05326e253ce4f185e8e
[INFO] checking 13christopherb/chess against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F13christopherb%2Fchess" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/13christopherb/chess
[INFO] finished tweaking git repo https://github.com/13christopherb/chess
[INFO] tweaked toml for git repo https://github.com/13christopherb/chess written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/13christopherb/chess on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/13christopherb/chess already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: unused manifest key: package.lto
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d47a1bc9403f621799004773f7f25efdb4b2483df75150f2d95da5c900d17f1d
[INFO] running `Command { std: "docker" "start" "-a" "d47a1bc9403f621799004773f7f25efdb4b2483df75150f2d95da5c900d17f1d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d47a1bc9403f621799004773f7f25efdb4b2483df75150f2d95da5c900d17f1d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d47a1bc9403f621799004773f7f25efdb4b2483df75150f2d95da5c900d17f1d", kill_on_drop: false }`
[INFO] [stdout] d47a1bc9403f621799004773f7f25efdb4b2483df75150f2d95da5c900d17f1d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid -Dunmustuse_in_always_ok" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bde910901c5cc94007a3401c735a76f15eb77fa6a35744ee5dd200da9f6f4353
[INFO] running `Command { std: "docker" "start" "-a" "bde910901c5cc94007a3401c735a76f15eb77fa6a35744ee5dd200da9f6f4353", kill_on_drop: false }`
[INFO] [stderr] warning: unused manifest key: package.lto
[INFO] [stderr]    Compiling libc v0.2.124
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]     Checking ppv-lite86 v0.2.16
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]     Checking getrandom v0.2.6
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking chess v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `MFLAG_EP` and `MFLAG_PS`
[INFO] [stdout]  --> src/game_board/board.rs:6:40
[INFO] [stdout]   |
[INFO] [stdout] 6 | use crate::moves::gamemove::{GameMove, MFLAG_EP, MFLAG_PS};
[INFO] [stdout]   |                                        ^^^^^^^^  ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `generate_all_moves`
[INFO] [stdout]  --> src/game_board/board.rs:7:29
[INFO] [stdout]   |
[INFO] [stdout] 7 | use crate::moves::movegen::{generate_all_moves, square_is_attacked};
[INFO] [stdout]   |                             ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]   --> src/game_board/bitboard.rs:71:23
[INFO] [stdout]    |
[INFO] [stdout] 71 |         self.board ^= (self.set_mask[to as usize] | self.set_mask[from as usize])
[INFO] [stdout]    |                       ^                                                         ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 71 -         self.board ^= (self.set_mask[to as usize] | self.set_mask[from as usize])
[INFO] [stdout] 71 +         self.board ^= self.set_mask[to as usize] | self.set_mask[from as usize]
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `fr2sq` and `init_file_rank_arrays`
[INFO] [stdout]  --> src/moves/movegen.rs:4:34
[INFO] [stdout]   |
[INFO] [stdout] 4 | use crate::utils::square_utils::{fr2sq, init_file_rank_arrays};
[INFO] [stdout]   |                                  ^^^^^  ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `check_board`
[INFO] [stdout]  --> src/moves/movegen.rs:5:39
[INFO] [stdout]   |
[INFO] [stdout] 5 | use crate::game_board::board::{Board, check_board};
[INFO] [stdout]   |                                       ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/moves/movegen.rs:242:12
[INFO] [stdout]     |
[INFO] [stdout] 242 |         if (pos.en_passant != NO_SQ) {
[INFO] [stdout]     |            ^                       ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 242 -         if (pos.en_passant != NO_SQ) {
[INFO] [stdout] 242 +         if pos.en_passant != NO_SQ  {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::error::Error`
[INFO] [stdout]  --> src/utils/io.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::error::Error;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `io`
[INFO] [stdout]  --> src/utils/io.rs:2:16
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::{fmt, io};
[INFO] [stdout]   |                ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::mem`
[INFO] [stdout]  --> src/alphabeta/pvtable.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::mem;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::mem::MaybeUninit`
[INFO] [stdout]  --> src/alphabeta/pvtable.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::mem::MaybeUninit;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `MFLAG_EP` and `MFLAG_PS`
[INFO] [stdout]  --> src/game_board/board.rs:6:40
[INFO] [stdout]   |
[INFO] [stdout] 6 | use crate::moves::gamemove::{GameMove, MFLAG_EP, MFLAG_PS};
[INFO] [stdout]   |                                        ^^^^^^^^  ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `generate_all_moves`
[INFO] [stdout]  --> src/game_board/board.rs:7:29
[INFO] [stdout]   |
[INFO] [stdout] 7 | use crate::moves::movegen::{generate_all_moves, square_is_attacked};
[INFO] [stdout]   |                             ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `BP`
[INFO] [stdout]    --> src/game_board/board.rs:780:25
[INFO] [stdout]     |
[INFO] [stdout] 780 |         BLACK, BLACK_S, BP, BQ_CASTLE, BR, EMPTY, WHITE, WHITE_S, WK_CASTLE, WP, WQ, WQ_CASTLE, WR,
[INFO] [stdout]     |                         ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `check_board`
[INFO] [stdout]    --> src/game_board/board.rs:785:36
[INFO] [stdout]     |
[INFO] [stdout] 785 |     use crate::game_board::board::{check_board, Board, GameMove};
[INFO] [stdout]     |                                    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::moves::validate::is_sq_on_board`
[INFO] [stdout]    --> src/game_board/board.rs:786:9
[INFO] [stdout]     |
[INFO] [stdout] 786 |     use crate::moves::validate::is_sq_on_board;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]   --> src/game_board/bitboard.rs:71:23
[INFO] [stdout]    |
[INFO] [stdout] 71 |         self.board ^= (self.set_mask[to as usize] | self.set_mask[from as usize])
[INFO] [stdout]    |                       ^                                                         ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 71 -         self.board ^= (self.set_mask[to as usize] | self.set_mask[from as usize])
[INFO] [stdout] 71 +         self.board ^= self.set_mask[to as usize] | self.set_mask[from as usize]
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `fr2sq` and `init_file_rank_arrays`
[INFO] [stdout]  --> src/moves/movegen.rs:4:34
[INFO] [stdout]   |
[INFO] [stdout] 4 | use crate::utils::square_utils::{fr2sq, init_file_rank_arrays};
[INFO] [stdout]   |                                  ^^^^^  ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `check_board`
[INFO] [stdout]  --> src/moves/movegen.rs:5:39
[INFO] [stdout]   |
[INFO] [stdout] 5 | use crate::game_board::board::{Board, check_board};
[INFO] [stdout]   |                                       ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/moves/movegen.rs:242:12
[INFO] [stdout]     |
[INFO] [stdout] 242 |         if (pos.en_passant != NO_SQ) {
[INFO] [stdout]     |            ^                       ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 242 -         if (pos.en_passant != NO_SQ) {
[INFO] [stdout] 242 +         if pos.en_passant != NO_SQ  {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::env`
[INFO] [stdout]    --> src/moves/movegen.rs:441:9
[INFO] [stdout]     |
[INFO] [stdout] 441 |     use std::env;
[INFO] [stdout]     |         ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::utils::hashkeys::BoardHasher`
[INFO] [stdout]   --> src/utils/piece_utils.rs:17:9
[INFO] [stdout]    |
[INFO] [stdout] 17 |     use crate::utils::hashkeys::BoardHasher;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::error::Error`
[INFO] [stdout]  --> src/utils/io.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::error::Error;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `io`
[INFO] [stdout]  --> src/utils/io.rs:2:16
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::{fmt, io};
[INFO] [stdout]   |                ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::mem`
[INFO] [stdout]  --> src/alphabeta/pvtable.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::mem;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::mem::MaybeUninit`
[INFO] [stdout]  --> src/alphabeta/pvtable.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::mem::MaybeUninit;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/moves/gamemove.rs:74:13
[INFO] [stdout]    |
[INFO] [stdout] 74 |         let mut output = String::from("");
[INFO] [stdout]    |             ----^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `output`
[INFO] [stdout]   --> src/moves/gamemove.rs:74:13
[INFO] [stdout]    |
[INFO] [stdout] 74 |         let mut output = String::from("");
[INFO] [stdout]    |             ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_output`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `pos`
[INFO] [stdout]    --> src/moves/movegen.rs:104:19
[INFO] [stdout]     |
[INFO] [stdout] 104 | fn add_quiet_move(pos: &Board, mve: GameMove, list: &mut Vec<GameMove>) {
[INFO] [stdout]     |                   ^^^ help: if this is intentional, prefix it with an underscore: `_pos`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `pos`
[INFO] [stdout]    --> src/moves/movegen.rs:109:21
[INFO] [stdout]     |
[INFO] [stdout] 109 | fn add_capture_move(pos: &Board, mve: GameMove, list: &mut Vec<GameMove>) {
[INFO] [stdout]     |                     ^^^ help: if this is intentional, prefix it with an underscore: `_pos`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/utils/hashkeys.rs:36:13
[INFO] [stdout]    |
[INFO] [stdout] 36 |         let mut sq = 0;
[INFO] [stdout]    |             ----^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/alphabeta/pvtable.rs:20:13
[INFO] [stdout]    |
[INFO] [stdout] 20 |         let mut table = vec![PVEntry{
[INFO] [stdout]    |             ----^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `SIDE_CHARS` is never used
[INFO] [stdout]    --> src/game_board/board.rs:645:15
[INFO] [stdout]     |
[INFO] [stdout] 645 |         const SIDE_CHARS: [char; 3] = ['w', 'b', '-'];
[INFO] [stdout]     |               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `RANK_CHARS` is never used
[INFO] [stdout]    --> src/game_board/board.rs:646:15
[INFO] [stdout]     |
[INFO] [stdout] 646 |         const RANK_CHARS: [char; 8] = ['1', '2', '3', '4', '5', '6', '7', '8'];
[INFO] [stdout]     |               ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `FILE_CHARS` is never used
[INFO] [stdout]    --> src/game_board/board.rs:647:15
[INFO] [stdout]     |
[INFO] [stdout] 647 |         const FILE_CHARS: [char; 8] = ['a', 'b', 'c', 'd', 'e', 'f', 'g', 'h'];
[INFO] [stdout]     |               ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `MAX_POSITION_MOVES` is never used
[INFO] [stdout]  --> src/moves/movegen.rs:7:7
[INFO] [stdout]   |
[INFO] [stdout] 7 | const MAX_POSITION_MOVES: u32 = 256;
[INFO] [stdout]   |       ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `squares_are_attacked` is never used
[INFO] [stdout]   --> src/moves/movegen.rs:88:4
[INFO] [stdout]    |
[INFO] [stdout] 88 | fn squares_are_attacked(squares: &[usize], side: u8, pces: &[u8; 120]) -> bool {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `squares_are_empty` is never used
[INFO] [stdout]   --> src/moves/movegen.rs:96:4
[INFO] [stdout]    |
[INFO] [stdout] 96 | fn squares_are_empty(squares: &[usize], pces: &[u8; 120]) -> bool {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `is_side_valid` is never used
[INFO] [stdout]  --> src/moves/validate.rs:5:4
[INFO] [stdout]   |
[INFO] [stdout] 5 | fn is_side_valid(side:u8) -> bool { side == WHITE || side == BLACK }
[INFO] [stdout]   |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `is_filerank_valid` is never used
[INFO] [stdout]  --> src/moves/validate.rs:8:4
[INFO] [stdout]   |
[INFO] [stdout] 8 | fn is_filerank_valid(fr: u8) -> bool {
[INFO] [stdout]   |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `is_piece_valid` is never used
[INFO] [stdout]   --> src/moves/validate.rs:14:4
[INFO] [stdout]    |
[INFO] [stdout] 14 | fn is_piece_valid(pce: u8) -> bool { pce <= BK }
[INFO] [stdout]    |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `is_piece` is never used
[INFO] [stdout]   --> src/moves/validate.rs:17:4
[INFO] [stdout]    |
[INFO] [stdout] 17 | fn is_piece(pce: u8) -> bool { (WP..=BK).contains(&pce) }
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<usize, Infallible>
[INFO] [stdout]    --> src/game_board/board.rs:130:25
[INFO] [stdout]     |
[INFO] [stdout] 130 |             self.pieces[usize::try_from(self.sq120(i)).unwrap()] = pieces::EMPTY;
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<usize, Infallible>
[INFO] [stdout]   --> src/utils/hashkeys.rs:53:66
[INFO] [stdout]    |
[INFO] [stdout] 53 |             final_key ^= self.piece_keys[pieces::EMPTY as usize][usize::try_from(en_passant).unwrap()];
[INFO] [stdout]    |                                                                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `chess` (lib) due to 2 previous errors; 26 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: unused variable: `white_pawn_bb`
[INFO] [stdout]    --> src/game_board/board.rs:801:13
[INFO] [stdout]     |
[INFO] [stdout] 801 |         let white_pawn_bb: u64 = 0x0000_0000_0000_FF00;
[INFO] [stdout]     |             ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_white_pawn_bb`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]     --> src/game_board/board.rs:1150:13
[INFO] [stdout]      |
[INFO] [stdout] 1150 |         let mut mov = GameMove::new(A2, A4, 0, 0, 0x80000);
[INFO] [stdout]      |             ----^^^
[INFO] [stdout]      |             |
[INFO] [stdout]      |             help: remove this `mut`
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]     --> src/game_board/board.rs:1334:13
[INFO] [stdout]      |
[INFO] [stdout] 1334 |         for i in 0..moves.len() {
[INFO] [stdout]      |             ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/moves/gamemove.rs:74:13
[INFO] [stdout]    |
[INFO] [stdout] 74 |         let mut output = String::from("");
[INFO] [stdout]    |             ----^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `output`
[INFO] [stdout]   --> src/moves/gamemove.rs:74:13
[INFO] [stdout]    |
[INFO] [stdout] 74 |         let mut output = String::from("");
[INFO] [stdout]    |             ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_output`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `pos`
[INFO] [stdout]    --> src/moves/movegen.rs:104:19
[INFO] [stdout]     |
[INFO] [stdout] 104 | fn add_quiet_move(pos: &Board, mve: GameMove, list: &mut Vec<GameMove>) {
[INFO] [stdout]     |                   ^^^ help: if this is intentional, prefix it with an underscore: `_pos`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `pos`
[INFO] [stdout]    --> src/moves/movegen.rs:109:21
[INFO] [stdout]     |
[INFO] [stdout] 109 | fn add_capture_move(pos: &Board, mve: GameMove, list: &mut Vec<GameMove>) {
[INFO] [stdout]     |                     ^^^ help: if this is intentional, prefix it with an underscore: `_pos`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/moves/movegen.rs:752:13
[INFO] [stdout]     |
[INFO] [stdout] 752 |         let mut pces = init_pces();
[INFO] [stdout]     |             ----^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/utils/hashkeys.rs:36:13
[INFO] [stdout]    |
[INFO] [stdout] 36 |         let mut sq = 0;
[INFO] [stdout]    |             ----^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/alphabeta/pvtable.rs:20:13
[INFO] [stdout]    |
[INFO] [stdout] 20 |         let mut table = vec![PVEntry{
[INFO] [stdout]    |             ----^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/alphabeta/pvtable.rs:112:13
[INFO] [stdout]     |
[INFO] [stdout] 112 |         let mut table = PVTable::new();
[INFO] [stdout]     |             ----^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `SIDE_CHARS` is never used
[INFO] [stdout]    --> src/game_board/board.rs:645:15
[INFO] [stdout]     |
[INFO] [stdout] 645 |         const SIDE_CHARS: [char; 3] = ['w', 'b', '-'];
[INFO] [stdout]     |               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `RANK_CHARS` is never used
[INFO] [stdout]    --> src/game_board/board.rs:646:15
[INFO] [stdout]     |
[INFO] [stdout] 646 |         const RANK_CHARS: [char; 8] = ['1', '2', '3', '4', '5', '6', '7', '8'];
[INFO] [stdout]     |               ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `FILE_CHARS` is never used
[INFO] [stdout]    --> src/game_board/board.rs:647:15
[INFO] [stdout]     |
[INFO] [stdout] 647 |         const FILE_CHARS: [char; 8] = ['a', 'b', 'c', 'd', 'e', 'f', 'g', 'h'];
[INFO] [stdout]     |               ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_make_and_undo` is never used
[INFO] [stdout]     --> src/game_board/board.rs:1258:8
[INFO] [stdout]      |
[INFO] [stdout] 1258 |     fn test_make_and_undo() {
[INFO] [stdout]      |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `MAX_POSITION_MOVES` is never used
[INFO] [stdout]  --> src/moves/movegen.rs:7:7
[INFO] [stdout]   |
[INFO] [stdout] 7 | const MAX_POSITION_MOVES: u32 = 256;
[INFO] [stdout]   |       ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `squares_are_attacked` is never used
[INFO] [stdout]   --> src/moves/movegen.rs:88:4
[INFO] [stdout]    |
[INFO] [stdout] 88 | fn squares_are_attacked(squares: &[usize], side: u8, pces: &[u8; 120]) -> bool {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `squares_are_empty` is never used
[INFO] [stdout]   --> src/moves/movegen.rs:96:4
[INFO] [stdout]    |
[INFO] [stdout] 96 | fn squares_are_empty(squares: &[usize], pces: &[u8; 120]) -> bool {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_white_pawn_capture` is never used
[INFO] [stdout]    --> src/moves/movegen.rs:468:8
[INFO] [stdout]     |
[INFO] [stdout] 468 |     fn test_white_pawn_capture() {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `is_side_valid` is never used
[INFO] [stdout]  --> src/moves/validate.rs:5:4
[INFO] [stdout]   |
[INFO] [stdout] 5 | fn is_side_valid(side:u8) -> bool { side == WHITE || side == BLACK }
[INFO] [stdout]   |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `is_filerank_valid` is never used
[INFO] [stdout]  --> src/moves/validate.rs:8:4
[INFO] [stdout]   |
[INFO] [stdout] 8 | fn is_filerank_valid(fr: u8) -> bool {
[INFO] [stdout]   |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `is_piece_valid` is never used
[INFO] [stdout]   --> src/moves/validate.rs:14:4
[INFO] [stdout]    |
[INFO] [stdout] 14 | fn is_piece_valid(pce: u8) -> bool { pce <= BK }
[INFO] [stdout]    |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `is_piece` is never used
[INFO] [stdout]   --> src/moves/validate.rs:17:4
[INFO] [stdout]    |
[INFO] [stdout] 17 | fn is_piece(pce: u8) -> bool { (WP..=BK).contains(&pce) }
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<usize, Infallible>
[INFO] [stdout]    --> src/game_board/board.rs:130:25
[INFO] [stdout]     |
[INFO] [stdout] 130 |             self.pieces[usize::try_from(self.sq120(i)).unwrap()] = pieces::EMPTY;
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<usize, Infallible>
[INFO] [stdout]    --> src/moves/movegen.rs:669:18
[INFO] [stdout]     |
[INFO] [stdout] 669 |             pces[usize::try_from(sq64_to_sq120[i]).unwrap()] = pieces::EMPTY;
[INFO] [stdout]     |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_move__does_not_exist` should have a snake case name
[INFO] [stdout]    --> src/moves/movegen.rs:858:8
[INFO] [stdout]     |
[INFO] [stdout] 858 |     fn test_move__does_not_exist() {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `test_move_does_not_exist`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_snake_case)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<usize, Infallible>
[INFO] [stdout]   --> src/utils/hashkeys.rs:53:66
[INFO] [stdout]    |
[INFO] [stdout] 53 |             final_key ^= self.piece_keys[pieces::EMPTY as usize][usize::try_from(en_passant).unwrap()];
[INFO] [stdout]    |                                                                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `chess` (lib test) due to 3 previous errors; 39 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "bde910901c5cc94007a3401c735a76f15eb77fa6a35744ee5dd200da9f6f4353", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bde910901c5cc94007a3401c735a76f15eb77fa6a35744ee5dd200da9f6f4353", kill_on_drop: false }`
[INFO] [stdout] bde910901c5cc94007a3401c735a76f15eb77fa6a35744ee5dd200da9f6f4353
