[INFO] cloning repository https://github.com/tduffy000/lasker
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tduffy000/lasker" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftduffy000%2Flasker", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftduffy000%2Flasker'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] de3e91fed6a558d54476bcd14dac97344a78e8cc
[INFO] checking tduffy000/lasker against master#936f2600b6c903b04387f74ed5cbce88bb06d243 for pr-91141
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftduffy000%2Flasker" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/tduffy000/lasker on toolchain 936f2600b6c903b04387f74ed5cbce88bb06d243
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/tduffy000/lasker
[INFO] finished tweaking git repo https://github.com/tduffy000/lasker
[INFO] tweaked toml for git repo https://github.com/tduffy000/lasker written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/tduffy000/lasker already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 07fa55a3839b7ed879906372e37a060da329648dad8f741871929bb679e4714b
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "07fa55a3839b7ed879906372e37a060da329648dad8f741871929bb679e4714b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "07fa55a3839b7ed879906372e37a060da329648dad8f741871929bb679e4714b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "07fa55a3839b7ed879906372e37a060da329648dad8f741871929bb679e4714b", kill_on_drop: false }`
[INFO] [stdout] 07fa55a3839b7ed879906372e37a060da329648dad8f741871929bb679e4714b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "-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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] de6f6f17c5a7d8c55fadd337a6919297dce99059cbbfcb32a96dccd74060139d
[INFO] running `Command { std: "docker" "start" "-a" "de6f6f17c5a7d8c55fadd337a6919297dce99059cbbfcb32a96dccd74060139d", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.103
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.4
[INFO] [stderr]     Checking lasker v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `key_manager`
[INFO] [stdout]  --> src/main.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 7 |     let key_manager = PositionKeyGenerator::new();
[INFO] [stdout]   |         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_key_manager`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `key_manager`
[INFO] [stdout]  --> src/main.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 7 |     let key_manager = PositionKeyGenerator::new();
[INFO] [stdout]   |         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_key_manager`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `key`
[INFO] [stdout]  --> src/board/key.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     key: u64,
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `piece_hashes`
[INFO] [stdout]  --> src/board/key.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     piece_hashes: [[u64; 64]; 12],
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `en_passant_hashes`
[INFO] [stdout]  --> src/board/key.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     en_passant_hashes: [u64; 64],
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `side_to_move_hash`
[INFO] [stdout]   --> src/board/key.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     side_to_move_hash: u64,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `castling_permission_hashes`
[INFO] [stdout]   --> src/board/key.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     castling_permission_hashes: [u64; 16], // 4!
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `key`
[INFO] [stdout]   --> src/board/key.rs:43:12
[INFO] [stdout]    |
[INFO] [stdout] 43 |     pub fn key(&self) -> u64 {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `hash_board`
[INFO] [stdout]   --> src/board/key.rs:49:12
[INFO] [stdout]    |
[INFO] [stdout] 49 |     pub fn hash_board(&self, state: &BoardState) -> u64 {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `WHITE_SQUARE`
[INFO] [stdout]  --> src/board/bitboard.rs:9:1
[INFO] [stdout]   |
[INFO] [stdout] 9 | const WHITE_SQUARE: u64 = 0x55AA55AA55AA55AA;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `BLACK_SQUARES`
[INFO] [stdout]   --> src/board/bitboard.rs:10:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | const BLACK_SQUARES: u64 = 0xAA55AA55AA55AA55;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `universe`
[INFO] [stdout]   --> src/board/bitboard.rs:55:12
[INFO] [stdout]    |
[INFO] [stdout] 55 |     pub fn universe() -> Self {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `pop_count`
[INFO] [stdout]   --> src/board/bitboard.rs:59:8
[INFO] [stdout]    |
[INFO] [stdout] 59 |     fn pop_count(&self) -> u32 {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `complement`
[INFO] [stdout]   --> src/board/bitboard.rs:63:8
[INFO] [stdout]    |
[INFO] [stdout] 63 |     fn complement(&self) -> Self {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `idx`
[INFO] [stdout]  --> src/board/error.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     idx: usize,
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `msg`
[INFO] [stdout]  --> src/board/error.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     msg: String,
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `square`
[INFO] [stdout]   --> src/board/error.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 20 |     square: Square,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `msg`
[INFO] [stdout]   --> src/board/error.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 21 |     msg: String,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/board/error.rs:25:12
[INFO] [stdout]    |
[INFO] [stdout] 25 |     pub fn new(square: Square) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `square`
[INFO] [stdout]   --> src/board/error.rs:35:5
[INFO] [stdout]    |
[INFO] [stdout] 35 |     square: Square,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `msg`
[INFO] [stdout]   --> src/board/error.rs:36:5
[INFO] [stdout]    |
[INFO] [stdout] 36 |     msg: String,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/board/error.rs:40:12
[INFO] [stdout]    |
[INFO] [stdout] 40 |     pub fn new(square: Square) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `ch`
[INFO] [stdout]   --> src/board/error.rs:50:5
[INFO] [stdout]    |
[INFO] [stdout] 50 |     ch: char,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `msg`
[INFO] [stdout]   --> src/board/error.rs:61:5
[INFO] [stdout]    |
[INFO] [stdout] 61 |     msg: String,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `A1_H8_DIAGONAL`
[INFO] [stdout]   --> src/board/types.rs:12:1
[INFO] [stdout]    |
[INFO] [stdout] 12 | const A1_H8_DIAGONAL: u64 = 0x8040201008040201;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `H1_A1_DIAGONAL`
[INFO] [stdout]   --> src/board/types.rs:13:1
[INFO] [stdout]    |
[INFO] [stdout] 13 | const H1_A1_DIAGONAL: u64 = 0x0102040810204080;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `FEN_BLANK`
[INFO] [stdout]   --> src/board/types.rs:14:1
[INFO] [stdout]    |
[INFO] [stdout] 14 | const FEN_BLANK: &str = "-";
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Black`
[INFO] [stdout]   --> src/board/types.rs:23:5
[INFO] [stdout]    |
[INFO] [stdout] 23 |     Black,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `rank`
[INFO] [stdout]    --> src/board/types.rs:351:12
[INFO] [stdout]     |
[INFO] [stdout] 351 |     pub fn rank(&self) -> Rank {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `file`
[INFO] [stdout]    --> src/board/types.rs:357:12
[INFO] [stdout]     |
[INFO] [stdout] 357 |     pub fn file(&self) -> File {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `from_fen`
[INFO] [stdout]    --> src/board/types.rs:363:12
[INFO] [stdout]     |
[INFO] [stdout] 363 |     pub fn from_fen(fen: impl ToString) -> Result<Option<Square>, InvalidCharError> {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `Direction`
[INFO] [stdout]    --> src/board/types.rs:379:10
[INFO] [stdout]     |
[INFO] [stdout] 379 | pub enum Direction {
[INFO] [stdout]     |          ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `from_fen`
[INFO] [stdout]    --> src/board/types.rs:418:12
[INFO] [stdout]     |
[INFO] [stdout] 418 |     pub fn from_fen(fen: impl ToString) -> Result<Self, FENParsingError> {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `from_fen`
[INFO] [stdout]   --> src/board/mod.rs:31:12
[INFO] [stdout]    |
[INFO] [stdout] 31 |     pub fn from_fen(fen: impl ToString) -> Result<BoardState, FENParsingError> {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `empty`
[INFO] [stdout]    --> src/board/mod.rs:102:8
[INFO] [stdout]     |
[INFO] [stdout] 102 |     fn empty() -> Self {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `taken`
[INFO] [stdout]    --> src/board/mod.rs:119:8
[INFO] [stdout]     |
[INFO] [stdout] 119 |     fn taken(&self) -> Bitboard {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `add_piece`
[INFO] [stdout]    --> src/board/mod.rs:134:8
[INFO] [stdout]     |
[INFO] [stdout] 134 |     fn add_piece(&mut self, piece: Piece, sq: Square) -> Result<(), SquareTakenError> {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `remove_piece`
[INFO] [stdout]    --> src/board/mod.rs:158:8
[INFO] [stdout]     |
[INFO] [stdout] 158 |     fn remove_piece(&mut self, piece: Piece, sq: Square) -> Result<(), NoPieceOnSquareError> {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `pieces`
[INFO] [stdout]    --> src/board/mod.rs:181:8
[INFO] [stdout]     |
[INFO] [stdout] 181 |     fn pieces(&self, color: Color) -> Bitboard {
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `piece`
[INFO] [stdout]    --> src/board/mod.rs:202:8
[INFO] [stdout]     |
[INFO] [stdout] 202 |     fn piece(&self, sq: &Square) -> Option<Piece> {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `from_fen`
[INFO] [stdout]    --> src/board/mod.rs:233:8
[INFO] [stdout]     |
[INFO] [stdout] 233 |     fn from_fen(fen: impl ToString) -> Result<Board, FENParsingError> {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 40 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `key`
[INFO] [stdout]  --> src/board/key.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     key: u64,
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `key`
[INFO] [stdout]   --> src/board/key.rs:43:12
[INFO] [stdout]    |
[INFO] [stdout] 43 |     pub fn key(&self) -> u64 {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `WHITE_SQUARE`
[INFO] [stdout]  --> src/board/bitboard.rs:9:1
[INFO] [stdout]   |
[INFO] [stdout] 9 | const WHITE_SQUARE: u64 = 0x55AA55AA55AA55AA;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `BLACK_SQUARES`
[INFO] [stdout]   --> src/board/bitboard.rs:10:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | const BLACK_SQUARES: u64 = 0xAA55AA55AA55AA55;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `complement`
[INFO] [stdout]   --> src/board/bitboard.rs:63:8
[INFO] [stdout]    |
[INFO] [stdout] 63 |     fn complement(&self) -> Self {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `idx`
[INFO] [stdout]  --> src/board/error.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     idx: usize,
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `msg`
[INFO] [stdout]  --> src/board/error.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     msg: String,
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `square`
[INFO] [stdout]   --> src/board/error.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 20 |     square: Square,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `msg`
[INFO] [stdout]   --> src/board/error.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 21 |     msg: String,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `square`
[INFO] [stdout]   --> src/board/error.rs:35:5
[INFO] [stdout]    |
[INFO] [stdout] 35 |     square: Square,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `msg`
[INFO] [stdout]   --> src/board/error.rs:36:5
[INFO] [stdout]    |
[INFO] [stdout] 36 |     msg: String,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `ch`
[INFO] [stdout]   --> src/board/error.rs:50:5
[INFO] [stdout]    |
[INFO] [stdout] 50 |     ch: char,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `msg`
[INFO] [stdout]   --> src/board/error.rs:61:5
[INFO] [stdout]    |
[INFO] [stdout] 61 |     msg: String,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `A1_H8_DIAGONAL`
[INFO] [stdout]   --> src/board/types.rs:12:1
[INFO] [stdout]    |
[INFO] [stdout] 12 | const A1_H8_DIAGONAL: u64 = 0x8040201008040201;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `H1_A1_DIAGONAL`
[INFO] [stdout]   --> src/board/types.rs:13:1
[INFO] [stdout]    |
[INFO] [stdout] 13 | const H1_A1_DIAGONAL: u64 = 0x0102040810204080;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `Direction`
[INFO] [stdout]    --> src/board/types.rs:379:10
[INFO] [stdout]     |
[INFO] [stdout] 379 | pub enum Direction {
[INFO] [stdout]     |          ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `pieces`
[INFO] [stdout]    --> src/board/mod.rs:181:8
[INFO] [stdout]     |
[INFO] [stdout] 181 |     fn pieces(&self, color: Color) -> Bitboard {
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 18 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.61s
[INFO] running `Command { std: "docker" "inspect" "de6f6f17c5a7d8c55fadd337a6919297dce99059cbbfcb32a96dccd74060139d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "de6f6f17c5a7d8c55fadd337a6919297dce99059cbbfcb32a96dccd74060139d", kill_on_drop: false }`
[INFO] [stdout] de6f6f17c5a7d8c55fadd337a6919297dce99059cbbfcb32a96dccd74060139d