[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 [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 [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