[INFO] cloning repository https://github.com/joschatom/chess-engine
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/joschatom/chess-engine" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjoschatom%2Fchess-engine", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjoschatom%2Fchess-engine'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 21e4cae27719b9eebdafd379f611e4c78a734c93
[INFO] checking joschatom/chess-engine 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%2Fjoschatom%2Fchess-engine" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/joschatom/chess-engine
[INFO] finished tweaking git repo https://github.com/joschatom/chess-engine
[INFO] tweaked toml for git repo https://github.com/joschatom/chess-engine written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/joschatom/chess-engine 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/joschatom/chess-engine 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] d1e49e7128178c2a5944b6a3884f6cc0c61abe79267992c7277df53c52430bad
[INFO] running `Command { std: "docker" "start" "-a" "d1e49e7128178c2a5944b6a3884f6cc0c61abe79267992c7277df53c52430bad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d1e49e7128178c2a5944b6a3884f6cc0c61abe79267992c7277df53c52430bad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d1e49e7128178c2a5944b6a3884f6cc0c61abe79267992c7277df53c52430bad", kill_on_drop: false }`
[INFO] [stdout] d1e49e7128178c2a5944b6a3884f6cc0c61abe79267992c7277df53c52430bad
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 78945d02c88083a3222e9e0833ae03ea49a00b7401af61e4a9b4ca4851521e89
[INFO] running `Command { std: "docker" "start" "-a" "78945d02c88083a3222e9e0833ae03ea49a00b7401af61e4a9b4ca4851521e89", kill_on_drop: false }`
[INFO] [stderr]    Compiling yansi v1.0.1
[INFO] [stderr]     Checking strum v0.26.3
[INFO] [stderr]    Compiling proc-macro2-diagnostics v0.10.1
[INFO] [stderr]    Compiling int-enum v1.1.2
[INFO] [stderr]    Compiling syn v2.0.89
[INFO] [stderr]    Compiling strum_macros v0.26.4
[INFO] [stderr]     Checking chess-engine v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `Duration`, `Read`, `num::NonZero`, and `sleep`
[INFO] [stdout]  --> src/main.rs:4:19
[INFO] [stdout]   |
[INFO] [stdout] 4 |     io::{BufRead, Read},
[INFO] [stdout]   |                   ^^^^
[INFO] [stdout] 5 |     marker::PhantomData,
[INFO] [stdout] 6 |     num::NonZero,
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout] 7 |     sync::mpsc::{channel, Receiver, Sender},
[INFO] [stdout] 8 |     thread::{self, sleep},
[INFO] [stdout]   |                    ^^^^^
[INFO] [stdout] 9 |     time::{Duration, Instant},
[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: `BitBoards`
[INFO] [stdout]   --> src/main.rs:12:13
[INFO] [stdout]    |
[INFO] [stdout] 12 | use board::{BitBoards, Board};
[INFO] [stdout]    |             ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `cell::LazyCell`
[INFO] [stdout]  --> src/board.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{cell::LazyCell, collections::HashMap, str::FromStr};
[INFO] [stdout]   |           ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `self` and `self`
[INFO] [stdout]  --> src/board.rs:4:16
[INFO] [stdout]   |
[INFO] [stdout] 4 |     bitboard::{self, BitBoard}, hardcoded_moves::KNIGHT_MOVES, r#move::{CastlingMethod, Move, MoveFlag}, piece::{self, Color, Piece}, squ...
[INFO] [stdout]   |                ^^^^                                                                                              ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition: `timed_block`
[INFO] [stdout]    --> src/utils.rs:180:14
[INFO] [stdout]     |
[INFO] [stdout] 180 | macro_rules! timed_block {
[INFO] [stdout]     |              ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_macros)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `core::borrow`
[INFO] [stdout]    --> src/utils.rs:190:5
[INFO] [stdout]     |
[INFO] [stdout] 190 | use core::borrow;
[INFO] [stdout]     |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fmt::format`
[INFO] [stdout]    --> src/utils.rs:191:5
[INFO] [stdout]     |
[INFO] [stdout] 191 | use std::fmt::format;
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `BitBoards`, `Color`, `Piece`, and `self`
[INFO] [stdout]    --> src/utils.rs:195:13
[INFO] [stdout]     |
[INFO] [stdout] 195 |     board::{self, BitBoards, Board},
[INFO] [stdout]     |             ^^^^  ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 198 |     Color, Piece,
[INFO] [stdout]     |     ^^^^^  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]    --> src/utils.rs:219:24
[INFO] [stdout]     |
[INFO] [stdout] 219 |             let file = ((square.file() as isize) + f_off);
[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] 219 -             let file = ((square.file() as isize) + f_off);
[INFO] [stdout] 219 +             let file = (square.file() as isize) + f_off;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]    --> src/utils.rs:220:24
[INFO] [stdout]     |
[INFO] [stdout] 220 |             let rank = (((square.rank() as usize) as isize) + r_off);
[INFO] [stdout]     |                        ^                                           ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 220 -             let rank = (((square.rank() as usize) as isize) + r_off);
[INFO] [stdout] 220 +             let rank = ((square.rank() as usize) as isize) + r_off;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `UciMove`
[INFO] [stdout]   --> src/main.rs:29:31
[INFO] [stdout]    |
[INFO] [stdout] 29 | use uci::{UciCommand, UciFen, UciMove};
[INFO] [stdout]    |                               ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/board.rs:513:25
[INFO] [stdout]     |
[INFO] [stdout] 513 |         'conv: for (sq, mut bitboard) in move_bitboards_v {
[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: `start`
[INFO] [stdout]    --> src/board.rs:635:17
[INFO] [stdout]     |
[INFO] [stdout] 635 |             let start = Square::from_str(&mv[0..=1]).unwrap();
[INFO] [stdout]     |                 ^^^^^ help: if this is intentional, prefix it with an underscore: `_start`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `target`
[INFO] [stdout]    --> src/board.rs:636:17
[INFO] [stdout]     |
[INFO] [stdout] 636 |             let target = Square::from_str(&mv[2..=3]).unwrap();
[INFO] [stdout]     |                 ^^^^^^ help: if this is intentional, prefix it with an underscore: `_target`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rank_mask`
[INFO] [stdout]    --> src/board.rs:696:13
[INFO] [stdout]     |
[INFO] [stdout] 696 |         let rank_mask = square.rank().bitboard().0; // Create a mask for the rank
[INFO] [stdout]     |             ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_rank_mask`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rank`
[INFO] [stdout]    --> src/board.rs:697:13
[INFO] [stdout]     |
[INFO] [stdout] 697 |         let rank = square.rank();
[INFO] [stdout]     |             ^^^^ help: if this is intentional, prefix it with an underscore: `_rank`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `steps` is assigned to, but never used
[INFO] [stdout]    --> src/board.rs:700:13
[INFO] [stdout]     |
[INFO] [stdout] 700 |         let mut steps = 0;
[INFO] [stdout]     |             ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: consider using `_steps` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `steps` is never read
[INFO] [stdout]    --> src/board.rs:704:13
[INFO] [stdout]     |
[INFO] [stdout] 704 |             steps += 1;
[INFO] [stdout]     |             ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `steps` is never read
[INFO] [stdout]    --> src/board.rs:718:9
[INFO] [stdout]     |
[INFO] [stdout] 718 |         steps = 0;
[INFO] [stdout]     |         ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `steps` is never read
[INFO] [stdout]    --> src/board.rs:723:13
[INFO] [stdout]     |
[INFO] [stdout] 723 |             steps += 1;
[INFO] [stdout]     |             ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/board.rs:783:17
[INFO] [stdout]     |
[INFO] [stdout] 783 |             let mut hits: i32 = 0;
[INFO] [stdout]     |                 ----^^^^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Duration`, `Read`, `num::NonZero`, and `sleep`
[INFO] [stdout]  --> src/main.rs:4:19
[INFO] [stdout]   |
[INFO] [stdout] 4 |     io::{BufRead, Read},
[INFO] [stdout]   |                   ^^^^
[INFO] [stdout] 5 |     marker::PhantomData,
[INFO] [stdout] 6 |     num::NonZero,
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout] 7 |     sync::mpsc::{channel, Receiver, Sender},
[INFO] [stdout] 8 |     thread::{self, sleep},
[INFO] [stdout]   |                    ^^^^^
[INFO] [stdout] 9 |     time::{Duration, Instant},
[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: `BitBoards`
[INFO] [stdout]   --> src/main.rs:12:13
[INFO] [stdout]    |
[INFO] [stdout] 12 | use board::{BitBoards, Board};
[INFO] [stdout]    |             ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `cell::LazyCell`
[INFO] [stdout]  --> src/board.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{cell::LazyCell, collections::HashMap, str::FromStr};
[INFO] [stdout]   |           ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `self` and `self`
[INFO] [stdout]  --> src/board.rs:4:16
[INFO] [stdout]   |
[INFO] [stdout] 4 |     bitboard::{self, BitBoard}, hardcoded_moves::KNIGHT_MOVES, r#move::{CastlingMethod, Move, MoveFlag}, piece::{self, Color, Piece}, squ...
[INFO] [stdout]   |                ^^^^                                                                                              ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition: `timed_block`
[INFO] [stdout]    --> src/utils.rs:180:14
[INFO] [stdout]     |
[INFO] [stdout] 180 | macro_rules! timed_block {
[INFO] [stdout]     |              ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_macros)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `core::borrow`
[INFO] [stdout]    --> src/utils.rs:190:5
[INFO] [stdout]     |
[INFO] [stdout] 190 | use core::borrow;
[INFO] [stdout]     |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fmt::format`
[INFO] [stdout]    --> src/utils.rs:191:5
[INFO] [stdout]     |
[INFO] [stdout] 191 | use std::fmt::format;
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `BitBoards`, `Color`, `Piece`, and `self`
[INFO] [stdout]    --> src/utils.rs:195:13
[INFO] [stdout]     |
[INFO] [stdout] 195 |     board::{self, BitBoards, Board},
[INFO] [stdout]     |             ^^^^  ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 198 |     Color, Piece,
[INFO] [stdout]     |     ^^^^^  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]    --> src/utils.rs:219:24
[INFO] [stdout]     |
[INFO] [stdout] 219 |             let file = ((square.file() as isize) + f_off);
[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] 219 -             let file = ((square.file() as isize) + f_off);
[INFO] [stdout] 219 +             let file = (square.file() as isize) + f_off;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]    --> src/utils.rs:220:24
[INFO] [stdout]     |
[INFO] [stdout] 220 |             let rank = (((square.rank() as usize) as isize) + r_off);
[INFO] [stdout]     |                        ^                                           ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 220 -             let rank = (((square.rank() as usize) as isize) + r_off);
[INFO] [stdout] 220 +             let rank = ((square.rank() as usize) as isize) + r_off;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `UciMove`
[INFO] [stdout]   --> src/main.rs:29:31
[INFO] [stdout]    |
[INFO] [stdout] 29 | use uci::{UciCommand, UciFen, UciMove};
[INFO] [stdout]    |                               ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `file`
[INFO] [stdout]    --> src/utils.rs:139:13
[INFO] [stdout]     |
[INFO] [stdout] 139 |         let file = square % 8; // Calculate the file (column)
[INFO] [stdout]     |             ^^^^ help: if this is intentional, prefix it with an underscore: `_file`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rank`
[INFO] [stdout]    --> src/utils.rs:140:13
[INFO] [stdout]     |
[INFO] [stdout] 140 |         let rank = square / 8; // Calculate the rank (row)
[INFO] [stdout]     |             ^^^^ help: if this is intentional, prefix it with an underscore: `_rank`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `start` is never read
[INFO] [stdout]    --> src/main.rs:309:5
[INFO] [stdout]     |
[INFO] [stdout] 309 |     start = Instant::now();
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `hacky_rook_fix_moves` is never used
[INFO] [stdout]    --> src/board.rs:687:8
[INFO] [stdout]     |
[INFO] [stdout]  87 | impl Board {
[INFO] [stdout]     | ---------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 687 |     fn hacky_rook_fix_moves(
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `A` is never used
[INFO] [stdout]  --> src/square.rs:3:6
[INFO] [stdout]   |
[INFO] [stdout] 3 | enum A {}
[INFO] [stdout]   |      ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `generate_bishop_moves` is never used
[INFO] [stdout]    --> src/utils.rs:134:4
[INFO] [stdout]     |
[INFO] [stdout] 134 | fn generate_bishop_moves() -> [BitBoard; Square::NUM] {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/uci.rs:25:23
[INFO] [stdout]    |
[INFO] [stdout] 25 |         let mut buf = String::from_str(i.next()?).ok()?;
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `chess-engine` (bin "chess-engine") due to 1 previous error; 27 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/board.rs:513:25
[INFO] [stdout]     |
[INFO] [stdout] 513 |         'conv: for (sq, mut bitboard) in move_bitboards_v {
[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: `start`
[INFO] [stdout]    --> src/board.rs:635:17
[INFO] [stdout]     |
[INFO] [stdout] 635 |             let start = Square::from_str(&mv[0..=1]).unwrap();
[INFO] [stdout]     |                 ^^^^^ help: if this is intentional, prefix it with an underscore: `_start`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `target`
[INFO] [stdout]    --> src/board.rs:636:17
[INFO] [stdout]     |
[INFO] [stdout] 636 |             let target = Square::from_str(&mv[2..=3]).unwrap();
[INFO] [stdout]     |                 ^^^^^^ help: if this is intentional, prefix it with an underscore: `_target`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rank_mask`
[INFO] [stdout]    --> src/board.rs:696:13
[INFO] [stdout]     |
[INFO] [stdout] 696 |         let rank_mask = square.rank().bitboard().0; // Create a mask for the rank
[INFO] [stdout]     |             ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_rank_mask`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rank`
[INFO] [stdout]    --> src/board.rs:697:13
[INFO] [stdout]     |
[INFO] [stdout] 697 |         let rank = square.rank();
[INFO] [stdout]     |             ^^^^ help: if this is intentional, prefix it with an underscore: `_rank`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `steps` is assigned to, but never used
[INFO] [stdout]    --> src/board.rs:700:13
[INFO] [stdout]     |
[INFO] [stdout] 700 |         let mut steps = 0;
[INFO] [stdout]     |             ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: consider using `_steps` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `steps` is never read
[INFO] [stdout]    --> src/board.rs:704:13
[INFO] [stdout]     |
[INFO] [stdout] 704 |             steps += 1;
[INFO] [stdout]     |             ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `steps` is never read
[INFO] [stdout]    --> src/board.rs:718:9
[INFO] [stdout]     |
[INFO] [stdout] 718 |         steps = 0;
[INFO] [stdout]     |         ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `steps` is never read
[INFO] [stdout]    --> src/board.rs:723:13
[INFO] [stdout]     |
[INFO] [stdout] 723 |             steps += 1;
[INFO] [stdout]     |             ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/board.rs:783:17
[INFO] [stdout]     |
[INFO] [stdout] 783 |             let mut hits: i32 = 0;
[INFO] [stdout]     |                 ----^^^^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `file`
[INFO] [stdout]    --> src/utils.rs:139:13
[INFO] [stdout]     |
[INFO] [stdout] 139 |         let file = square % 8; // Calculate the file (column)
[INFO] [stdout]     |             ^^^^ help: if this is intentional, prefix it with an underscore: `_file`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rank`
[INFO] [stdout]    --> src/utils.rs:140:13
[INFO] [stdout]     |
[INFO] [stdout] 140 |         let rank = square / 8; // Calculate the rank (row)
[INFO] [stdout]     |             ^^^^ help: if this is intentional, prefix it with an underscore: `_rank`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `start` is never read
[INFO] [stdout]    --> src/main.rs:309:5
[INFO] [stdout]     |
[INFO] [stdout] 309 |     start = Instant::now();
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `hacky_rook_fix_moves` is never used
[INFO] [stdout]    --> src/board.rs:687:8
[INFO] [stdout]     |
[INFO] [stdout]  87 | impl Board {
[INFO] [stdout]     | ---------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 687 |     fn hacky_rook_fix_moves(
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `A` is never used
[INFO] [stdout]  --> src/square.rs:3:6
[INFO] [stdout]   |
[INFO] [stdout] 3 | enum A {}
[INFO] [stdout]   |      ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `generate_bishop_moves` is never used
[INFO] [stdout]    --> src/utils.rs:134:4
[INFO] [stdout]     |
[INFO] [stdout] 134 | fn generate_bishop_moves() -> [BitBoard; Square::NUM] {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/uci.rs:25:23
[INFO] [stdout]    |
[INFO] [stdout] 25 |         let mut buf = String::from_str(i.next()?).ok()?;
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `chess-engine` (bin "chess-engine" test) due to 1 previous error; 27 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "78945d02c88083a3222e9e0833ae03ea49a00b7401af61e4a9b4ca4851521e89", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "78945d02c88083a3222e9e0833ae03ea49a00b7401af61e4a9b4ca4851521e89", kill_on_drop: false }`
[INFO] [stdout] 78945d02c88083a3222e9e0833ae03ea49a00b7401af61e4a9b4ca4851521e89
