[INFO] cloning repository https://github.com/inda20plusplus/gestsson-chess
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/inda20plusplus/gestsson-chess" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Finda20plusplus%2Fgestsson-chess", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Finda20plusplus%2Fgestsson-chess'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 315e0260c05873cc1a55efb93930836700a13373
[INFO] testing inda20plusplus/gestsson-chess against try#ecabaf78506b7a4668d42dc20268c086b93f0fad for pr-87041
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Finda20plusplus%2Fgestsson-chess" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/inda20plusplus/gestsson-chess on toolchain ecabaf78506b7a4668d42dc20268c086b93f0fad
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/inda20plusplus/gestsson-chess
[INFO] finished tweaking git repo https://github.com/inda20plusplus/gestsson-chess
[INFO] tweaked toml for git repo https://github.com/inda20plusplus/gestsson-chess written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/inda20plusplus/gestsson-chess already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded dialog v0.3.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f478f808652acb0b9f437698a57bb8c2f7c3d423fedac24ce3a7de2a126779d9
[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" "f478f808652acb0b9f437698a57bb8c2f7c3d423fedac24ce3a7de2a126779d9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f478f808652acb0b9f437698a57bb8c2f7c3d423fedac24ce3a7de2a126779d9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f478f808652acb0b9f437698a57bb8c2f7c3d423fedac24ce3a7de2a126779d9", kill_on_drop: false }`
[INFO] [stdout] f478f808652acb0b9f437698a57bb8c2f7c3d423fedac24ce3a7de2a126779d9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 968d6cd4fc4c2ef6bbcd83acec08676cad2dd938c720be3d35080a224b311096
[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" "968d6cd4fc4c2ef6bbcd83acec08676cad2dd938c720be3d35080a224b311096", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.77
[INFO] [stderr]    Compiling syn v1.0.41
[INFO] [stderr]    Compiling chess_engine v0.1.0 (/opt/rustwide/workdir/chess_engine)
[INFO] [stderr]    Compiling proc-macro2 v1.0.21
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling toml v0.5.6
[INFO] [stderr]    Compiling serde_json v1.0.57
[INFO] [stderr]    Compiling wayland-client v0.21.13
[INFO] [stderr]    Compiling wayland-protocols v0.21.13
[INFO] [stderr]    Compiling euclid_macros v0.1.0
[INFO] [stderr]    Compiling glutin_egl_sys v0.1.5
[INFO] [stderr]    Compiling num-derive v0.2.5
[INFO] [stderr]    Compiling smart-default v0.5.2
[INFO] [stderr]    Compiling gfx_gl v0.6.1
[INFO] [stderr]    Compiling glutin_glx_sys v0.1.7
[INFO] [stdout] warning: unused import: `std::mem::replace`
[INFO] [stdout]   --> chess_engine/src/lib.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | use std::mem::replace;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `pos`
[INFO] [stdout]    --> chess_engine/src/lib.rs:232:52
[INFO] [stdout]     |
[INFO] [stdout] 232 |         let pieces = self.enumerate_pieces(|piece, pos| piece.team != team);
[INFO] [stdout]     |                                                    ^^^ help: if this is intentional, prefix it with an underscore: `_pos`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `point`
[INFO] [stdout]    --> chess_engine/src/lib.rs:334:39
[INFO] [stdout]     |
[INFO] [stdout] 334 |         self.enumerate_pieces(|piece, point| piece.team == self.current_player)
[INFO] [stdout]     |                                       ^^^^^ help: if this is intentional, prefix it with an underscore: `_point`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `point`
[INFO] [stdout]    --> chess_engine/src/lib.rs:338:39
[INFO] [stdout]     |
[INFO] [stdout] 338 |         self.enumerate_pieces(|piece, point| piece.necessity)
[INFO] [stdout]     |                                       ^^^^^ help: if this is intentional, prefix it with an underscore: `_point`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]    --> chess_engine/src/lib.rs:342:40
[INFO] [stdout]     |
[INFO] [stdout] 342 |         self.enumerate_pieces(|piece, (x, y)| piece.team != self.current_player)
[INFO] [stdout]     |                                        ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `y`
[INFO] [stdout]    --> chess_engine/src/lib.rs:342:43
[INFO] [stdout]     |
[INFO] [stdout] 342 |         self.enumerate_pieces(|piece, (x, y)| piece.team != self.current_player)
[INFO] [stdout]     |                                           ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `only_lethal`
[INFO] [stdout]    --> chess_engine/src/pieces/moves.rs:123:61
[INFO] [stdout]     |
[INFO] [stdout] 123 | pub fn pawn_moves(piece: &Piece, pos: Point, board: &Board, only_lethal: bool) -> MoveCollection {
[INFO] [stdout]     |                                                             ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_only_lethal`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `point`
[INFO] [stdout]    --> chess_engine/src/pieces/moves.rs:164:52
[INFO] [stdout]     |
[INFO] [stdout] 164 |         for rook in board.enumerate_pieces(|piece, point| {
[INFO] [stdout]     |                                                    ^^^^^ help: if this is intentional, prefix it with an underscore: `_point`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `only_lethal`
[INFO] [stdout]    --> chess_engine/src/pieces/moves.rs:196:61
[INFO] [stdout]     |
[INFO] [stdout] 196 | pub fn rook_moves(piece: &Piece, pos: Point, board: &Board, only_lethal: bool) -> MoveCollection {
[INFO] [stdout]     |                                                             ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_only_lethal`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `only_lethal`
[INFO] [stdout]    --> chess_engine/src/pieces/moves.rs:208:63
[INFO] [stdout]     |
[INFO] [stdout] 208 | pub fn bishop_moves(piece: &Piece, pos: Point, board: &Board, only_lethal: bool) -> MoveCollection {
[INFO] [stdout]     |                                                               ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_only_lethal`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `only_lethal`
[INFO] [stdout]    --> chess_engine/src/pieces/moves.rs:219:62
[INFO] [stdout]     |
[INFO] [stdout] 219 | pub fn queen_moves(piece: &Piece, pos: Point, board: &Board, only_lethal: bool) -> MoveCollection {
[INFO] [stdout]     |                                                              ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_only_lethal`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `only_lethal`
[INFO] [stdout]    --> chess_engine/src/pieces/moves.rs:234:63
[INFO] [stdout]     |
[INFO] [stdout] 234 | pub fn knight_moves(piece: &Piece, pos: Point, board: &Board, only_lethal: bool) -> MoveCollection {
[INFO] [stdout]     |                                                               ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_only_lethal`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> chess_engine/src/chess_move.rs:52:27
[INFO] [stdout]    |
[INFO] [stdout] 52 |     fn perform(&mut self, mut tiles: &mut BoardCollection) {
[INFO] [stdout]    |                           ----^^^^^
[INFO] [stdout]    |                           |
[INFO] [stdout]    |                           help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> chess_engine/src/chess_move.rs:68:27
[INFO] [stdout]    |
[INFO] [stdout] 68 |     fn reverse(&mut self, mut tiles: &mut BoardCollection) {
[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]   --> chess_engine/src/pieces/moves.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 18 |     mut x: i32,
[INFO] [stdout]    |     ----^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling parking_lot_core v0.6.2
[INFO] [stderr]    Compiling parking_lot v0.9.0
[INFO] [stdout] warning: 15 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling euclid v0.19.9
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling nix v0.14.1
[INFO] [stderr]    Compiling getrandom v0.1.15
[INFO] [stderr]    Compiling backtrace v0.3.50
[INFO] [stderr]    Compiling memmap v0.7.0
[INFO] [stderr]    Compiling x11-dl v2.18.5
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling dirs-sys v0.3.5
[INFO] [stderr]    Compiling shared_library v0.1.9
[INFO] [stderr]    Compiling raw-window-handle v0.3.3
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling alsa-sys v0.1.2
[INFO] [stderr]    Compiling bzip2-sys v0.1.9+1.0.8
[INFO] [stderr]    Compiling slice-deque v0.3.0
[INFO] [stderr]    Compiling libudev-sys v0.1.4
[INFO] [stderr]    Compiling nix v0.15.0
[INFO] [stderr]    Compiling rpassword v2.1.0
[INFO] [stderr]    Compiling dirs v2.0.2
[INFO] [stderr]    Compiling directories v2.0.2
[INFO] [stderr]    Compiling osmesa-sys v0.1.2
[INFO] [stderr]    Compiling lyon_geom v0.12.7
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rusttype v0.8.3
[INFO] [stderr]    Compiling tiff v0.3.1
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling bzip2 v0.3.3
[INFO] [stderr]    Compiling error-chain v0.12.4
[INFO] [stderr]    Compiling cpal v0.8.2
[INFO] [stderr]    Compiling dialog v0.3.0
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling tempdir v0.3.7
[INFO] [stderr]    Compiling minimp3 v0.3.5
[INFO] [stderr]    Compiling rusttype v0.7.9
[INFO] [stderr]    Compiling glyph_brush_layout v0.1.9
[INFO] [stderr]    Compiling lyon_path v0.13.2
[INFO] [stderr]    Compiling image v0.22.5
[INFO] [stderr]    Compiling andrew v0.2.1
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling gfx_device_gl v0.16.2
[INFO] [stderr]    Compiling nalgebra v0.18.1
[INFO] [stderr]    Compiling lyon_tessellation v0.13.5
[INFO] [stderr]    Compiling lyon_algorithms v0.13.4
[INFO] [stderr]    Compiling lyon v0.13.5
[INFO] [stderr]    Compiling twox-hash v1.5.0
[INFO] [stderr]    Compiling glyph_brush v0.6.3
[INFO] [stderr]    Compiling glyph_brush v0.5.4
[INFO] [stderr]    Compiling wayland-commons v0.21.13
[INFO] [stderr]    Compiling serde_derive v1.0.116
[INFO] [stderr]    Compiling thiserror-impl v1.0.20
[INFO] [stderr]    Compiling gilrs-core v0.2.6
[INFO] [stderr]    Compiling gilrs v0.7.4
[INFO] [stderr]    Compiling thiserror v1.0.20
[INFO] [stderr]    Compiling zip v0.5.8
[INFO] [stderr]    Compiling smithay-client-toolkit v0.4.6
[INFO] [stderr]    Compiling winit v0.19.5
[INFO] [stderr]    Compiling cargo_metadata v0.6.4
[INFO] [stderr]    Compiling skeptic v0.13.4
[INFO] [stderr]    Compiling glutin v0.20.1
[INFO] [stderr]    Compiling ggez v0.5.1
[INFO] [stderr]    Compiling gfx_window_glutin v0.30.0
[INFO] [stderr]    Compiling rodio v0.9.0
[INFO] [stderr]    Compiling gui v0.1.0 (/opt/rustwide/workdir/gui)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 37s
[INFO] running `Command { std: "docker" "inspect" "968d6cd4fc4c2ef6bbcd83acec08676cad2dd938c720be3d35080a224b311096", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "968d6cd4fc4c2ef6bbcd83acec08676cad2dd938c720be3d35080a224b311096", kill_on_drop: false }`
[INFO] [stdout] 968d6cd4fc4c2ef6bbcd83acec08676cad2dd938c720be3d35080a224b311096
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 22fc7be7866d9bfaee0ef5279389d65cb3f1f3b783e48abd23b6e127b15635c3
[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" "22fc7be7866d9bfaee0ef5279389d65cb3f1f3b783e48abd23b6e127b15635c3", kill_on_drop: false }`
[INFO] [stdout] warning: unused import: `std::mem::replace`
[INFO] [stdout]   --> chess_engine/src/lib.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | use std::mem::replace;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `pos`
[INFO] [stdout]    --> chess_engine/src/lib.rs:232:52
[INFO] [stdout]     |
[INFO] [stdout] 232 |         let pieces = self.enumerate_pieces(|piece, pos| piece.team != team);
[INFO] [stdout]     |                                                    ^^^ help: if this is intentional, prefix it with an underscore: `_pos`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `point`
[INFO] [stdout]    --> chess_engine/src/lib.rs:334:39
[INFO] [stdout]     |
[INFO] [stdout] 334 |         self.enumerate_pieces(|piece, point| piece.team == self.current_player)
[INFO] [stdout]     |                                       ^^^^^ help: if this is intentional, prefix it with an underscore: `_point`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `point`
[INFO] [stdout]    --> chess_engine/src/lib.rs:338:39
[INFO] [stdout]     |
[INFO] [stdout] 338 |         self.enumerate_pieces(|piece, point| piece.necessity)
[INFO] [stdout]     |                                       ^^^^^ help: if this is intentional, prefix it with an underscore: `_point`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]    --> chess_engine/src/lib.rs:342:40
[INFO] [stdout]     |
[INFO] [stdout] 342 |         self.enumerate_pieces(|piece, (x, y)| piece.team != self.current_player)
[INFO] [stdout]     |                                        ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `y`
[INFO] [stdout]    --> chess_engine/src/lib.rs:342:43
[INFO] [stdout]     |
[INFO] [stdout] 342 |         self.enumerate_pieces(|piece, (x, y)| piece.team != self.current_player)
[INFO] [stdout]     |                                           ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `only_lethal`
[INFO] [stdout]    --> chess_engine/src/pieces/moves.rs:123:61
[INFO] [stdout]     |
[INFO] [stdout] 123 | pub fn pawn_moves(piece: &Piece, pos: Point, board: &Board, only_lethal: bool) -> MoveCollection {
[INFO] [stdout]     |                                                             ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_only_lethal`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `point`
[INFO] [stdout]    --> chess_engine/src/pieces/moves.rs:164:52
[INFO] [stdout]     |
[INFO] [stdout] 164 |         for rook in board.enumerate_pieces(|piece, point| {
[INFO] [stdout]     |                                                    ^^^^^ help: if this is intentional, prefix it with an underscore: `_point`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `only_lethal`
[INFO] [stdout]    --> chess_engine/src/pieces/moves.rs:196:61
[INFO] [stdout]     |
[INFO] [stdout] 196 | pub fn rook_moves(piece: &Piece, pos: Point, board: &Board, only_lethal: bool) -> MoveCollection {
[INFO] [stdout]     |                                                             ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_only_lethal`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `only_lethal`
[INFO] [stdout]    --> chess_engine/src/pieces/moves.rs:208:63
[INFO] [stdout]     |
[INFO] [stdout] 208 | pub fn bishop_moves(piece: &Piece, pos: Point, board: &Board, only_lethal: bool) -> MoveCollection {
[INFO] [stdout]     |                                                               ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_only_lethal`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `only_lethal`
[INFO] [stdout]    --> chess_engine/src/pieces/moves.rs:219:62
[INFO] [stdout]     |
[INFO] [stdout] 219 | pub fn queen_moves(piece: &Piece, pos: Point, board: &Board, only_lethal: bool) -> MoveCollection {
[INFO] [stdout]     |                                                              ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_only_lethal`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `only_lethal`
[INFO] [stdout]    --> chess_engine/src/pieces/moves.rs:234:63
[INFO] [stdout]     |
[INFO] [stdout] 234 | pub fn knight_moves(piece: &Piece, pos: Point, board: &Board, only_lethal: bool) -> MoveCollection {
[INFO] [stdout]     |                                                               ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_only_lethal`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> chess_engine/src/chess_move.rs:52:27
[INFO] [stdout]    |
[INFO] [stdout] 52 |     fn perform(&mut self, mut tiles: &mut BoardCollection) {
[INFO] [stdout]    |                           ----^^^^^
[INFO] [stdout]    |                           |
[INFO] [stdout]    |                           help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> chess_engine/src/chess_move.rs:68:27
[INFO] [stdout]    |
[INFO] [stdout] 68 |     fn reverse(&mut self, mut tiles: &mut BoardCollection) {
[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]   --> chess_engine/src/pieces/moves.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 18 |     mut x: i32,
[INFO] [stdout]    |     ----^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 15 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling chess_engine v0.1.0 (/opt/rustwide/workdir/chess_engine)
[INFO] [stderr]    Compiling gui v0.1.0 (/opt/rustwide/workdir/gui)
[INFO] [stdout] warning: unused import: `std::mem::replace`
[INFO] [stdout]   --> chess_engine/src/lib.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | use std::mem::replace;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `pos`
[INFO] [stdout]    --> chess_engine/src/lib.rs:232:52
[INFO] [stdout]     |
[INFO] [stdout] 232 |         let pieces = self.enumerate_pieces(|piece, pos| piece.team != team);
[INFO] [stdout]     |                                                    ^^^ help: if this is intentional, prefix it with an underscore: `_pos`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `point`
[INFO] [stdout]    --> chess_engine/src/lib.rs:334:39
[INFO] [stdout]     |
[INFO] [stdout] 334 |         self.enumerate_pieces(|piece, point| piece.team == self.current_player)
[INFO] [stdout]     |                                       ^^^^^ help: if this is intentional, prefix it with an underscore: `_point`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `point`
[INFO] [stdout]    --> chess_engine/src/lib.rs:338:39
[INFO] [stdout]     |
[INFO] [stdout] 338 |         self.enumerate_pieces(|piece, point| piece.necessity)
[INFO] [stdout]     |                                       ^^^^^ help: if this is intentional, prefix it with an underscore: `_point`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]    --> chess_engine/src/lib.rs:342:40
[INFO] [stdout]     |
[INFO] [stdout] 342 |         self.enumerate_pieces(|piece, (x, y)| piece.team != self.current_player)
[INFO] [stdout]     |                                        ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `y`
[INFO] [stdout]    --> chess_engine/src/lib.rs:342:43
[INFO] [stdout]     |
[INFO] [stdout] 342 |         self.enumerate_pieces(|piece, (x, y)| piece.team != self.current_player)
[INFO] [stdout]     |                                           ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `only_lethal`
[INFO] [stdout]    --> chess_engine/src/pieces/moves.rs:123:61
[INFO] [stdout]     |
[INFO] [stdout] 123 | pub fn pawn_moves(piece: &Piece, pos: Point, board: &Board, only_lethal: bool) -> MoveCollection {
[INFO] [stdout]     |                                                             ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_only_lethal`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `point`
[INFO] [stdout]    --> chess_engine/src/pieces/moves.rs:164:52
[INFO] [stdout]     |
[INFO] [stdout] 164 |         for rook in board.enumerate_pieces(|piece, point| {
[INFO] [stdout]     |                                                    ^^^^^ help: if this is intentional, prefix it with an underscore: `_point`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `only_lethal`
[INFO] [stdout]    --> chess_engine/src/pieces/moves.rs:196:61
[INFO] [stdout]     |
[INFO] [stdout] 196 | pub fn rook_moves(piece: &Piece, pos: Point, board: &Board, only_lethal: bool) -> MoveCollection {
[INFO] [stdout]     |                                                             ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_only_lethal`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `only_lethal`
[INFO] [stdout]    --> chess_engine/src/pieces/moves.rs:208:63
[INFO] [stdout]     |
[INFO] [stdout] 208 | pub fn bishop_moves(piece: &Piece, pos: Point, board: &Board, only_lethal: bool) -> MoveCollection {
[INFO] [stdout]     |                                                               ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_only_lethal`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `only_lethal`
[INFO] [stdout]    --> chess_engine/src/pieces/moves.rs:219:62
[INFO] [stdout]     |
[INFO] [stdout] 219 | pub fn queen_moves(piece: &Piece, pos: Point, board: &Board, only_lethal: bool) -> MoveCollection {
[INFO] [stdout]     |                                                              ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_only_lethal`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `only_lethal`
[INFO] [stdout]    --> chess_engine/src/pieces/moves.rs:234:63
[INFO] [stdout]     |
[INFO] [stdout] 234 | pub fn knight_moves(piece: &Piece, pos: Point, board: &Board, only_lethal: bool) -> MoveCollection {
[INFO] [stdout]     |                                                               ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_only_lethal`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `point`
[INFO] [stdout]   --> chess_engine/src/lib.rs:21:44
[INFO] [stdout]    |
[INFO] [stdout] 21 |             board.enumerate_pieces(|piece, point| !piece.necessity && piece.name != "Rook")
[INFO] [stdout]    |                                            ^^^^^ help: if this is intentional, prefix it with an underscore: `_point`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `point`
[INFO] [stdout]   --> chess_engine/src/lib.rs:65:44
[INFO] [stdout]    |
[INFO] [stdout] 65 |             board.enumerate_pieces(|piece, point| !piece.necessity && piece.name != "Rook")
[INFO] [stdout]    |                                            ^^^^^ help: if this is intentional, prefix it with an underscore: `_point`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> chess_engine/src/lib.rs:162:13
[INFO] [stdout]     |
[INFO] [stdout] 162 |         for i in 0..100 {
[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]   --> chess_engine/src/chess_move.rs:52:27
[INFO] [stdout]    |
[INFO] [stdout] 52 |     fn perform(&mut self, mut tiles: &mut BoardCollection) {
[INFO] [stdout]    |                           ----^^^^^
[INFO] [stdout]    |                           |
[INFO] [stdout]    |                           help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> chess_engine/src/chess_move.rs:68:27
[INFO] [stdout]    |
[INFO] [stdout] 68 |     fn reverse(&mut self, mut tiles: &mut BoardCollection) {
[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]   --> chess_engine/src/pieces/moves.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 18 |     mut x: i32,
[INFO] [stdout]    |     ----^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 18 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.15s
[INFO] running `Command { std: "docker" "inspect" "22fc7be7866d9bfaee0ef5279389d65cb3f1f3b783e48abd23b6e127b15635c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "22fc7be7866d9bfaee0ef5279389d65cb3f1f3b783e48abd23b6e127b15635c3", kill_on_drop: false }`
[INFO] [stdout] 22fc7be7866d9bfaee0ef5279389d65cb3f1f3b783e48abd23b6e127b15635c3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "test" "--frozen", 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] ea9d6d2c72b234e82b97ed30f001f52d0cd3233820ad39d723a08ff69bca39d3
[INFO] running `Command { std: "docker" "start" "-a" "ea9d6d2c72b234e82b97ed30f001f52d0cd3233820ad39d723a08ff69bca39d3", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: unused import: `std::mem::replace`
[INFO] [stderr]   --> chess_engine/src/lib.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 | use std::mem::replace;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `pos`
[INFO] [stderr]    --> chess_engine/src/lib.rs:232:52
[INFO] [stderr]     |
[INFO] [stderr] 232 |         let pieces = self.enumerate_pieces(|piece, pos| piece.team != team);
[INFO] [stderr]     |                                                    ^^^ help: if this is intentional, prefix it with an underscore: `_pos`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `point`
[INFO] [stderr]    --> chess_engine/src/lib.rs:334:39
[INFO] [stderr]     |
[INFO] [stderr] 334 |         self.enumerate_pieces(|piece, point| piece.team == self.current_player)
[INFO] [stderr]     |                                       ^^^^^ help: if this is intentional, prefix it with an underscore: `_point`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `point`
[INFO] [stderr]    --> chess_engine/src/lib.rs:338:39
[INFO] [stderr]     |
[INFO] [stderr] 338 |         self.enumerate_pieces(|piece, point| piece.necessity)
[INFO] [stderr]     |                                       ^^^^^ help: if this is intentional, prefix it with an underscore: `_point`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `x`
[INFO] [stderr]    --> chess_engine/src/lib.rs:342:40
[INFO] [stderr]     |
[INFO] [stderr] 342 |         self.enumerate_pieces(|piece, (x, y)| piece.team != self.current_player)
[INFO] [stderr]     |                                        ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `y`
[INFO] [stderr]    --> chess_engine/src/lib.rs:342:43
[INFO] [stderr]     |
[INFO] [stderr] 342 |         self.enumerate_pieces(|piece, (x, y)| piece.team != self.current_player)
[INFO] [stderr]     |                                           ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `only_lethal`
[INFO] [stderr]    --> chess_engine/src/pieces/moves.rs:123:61
[INFO] [stderr]     |
[INFO] [stderr] 123 | pub fn pawn_moves(piece: &Piece, pos: Point, board: &Board, only_lethal: bool) -> MoveCollection {
[INFO] [stderr]     |                                                             ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_only_lethal`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `point`
[INFO] [stderr]    --> chess_engine/src/pieces/moves.rs:164:52
[INFO] [stderr]     |
[INFO] [stderr] 164 |         for rook in board.enumerate_pieces(|piece, point| {
[INFO] [stderr]     |                                                    ^^^^^ help: if this is intentional, prefix it with an underscore: `_point`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `only_lethal`
[INFO] [stderr]    --> chess_engine/src/pieces/moves.rs:196:61
[INFO] [stderr]     |
[INFO] [stderr] 196 | pub fn rook_moves(piece: &Piece, pos: Point, board: &Board, only_lethal: bool) -> MoveCollection {
[INFO] [stderr]     |                                                             ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_only_lethal`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `only_lethal`
[INFO] [stderr]    --> chess_engine/src/pieces/moves.rs:208:63
[INFO] [stderr]     |
[INFO] [stderr] 208 | pub fn bishop_moves(piece: &Piece, pos: Point, board: &Board, only_lethal: bool) -> MoveCollection {
[INFO] [stderr]     |                                                               ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_only_lethal`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `only_lethal`
[INFO] [stderr]    --> chess_engine/src/pieces/moves.rs:219:62
[INFO] [stderr]     |
[INFO] [stderr] 219 | pub fn queen_moves(piece: &Piece, pos: Point, board: &Board, only_lethal: bool) -> MoveCollection {
[INFO] [stderr]     |                                                              ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_only_lethal`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `only_lethal`
[INFO] [stderr]    --> chess_engine/src/pieces/moves.rs:234:63
[INFO] [stderr]     |
[INFO] [stderr] 234 | pub fn knight_moves(piece: &Piece, pos: Point, board: &Board, only_lethal: bool) -> MoveCollection {
[INFO] [stderr]     |                                                               ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_only_lethal`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> chess_engine/src/chess_move.rs:52:27
[INFO] [stderr]    |
[INFO] [stderr] 52 |     fn perform(&mut self, mut tiles: &mut BoardCollection) {
[INFO] [stderr]    |                           ----^^^^^
[INFO] [stderr]    |                           |
[INFO] [stderr]    |                           help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> chess_engine/src/chess_move.rs:68:27
[INFO] [stderr]    |
[INFO] [stderr] 68 |     fn reverse(&mut self, mut tiles: &mut BoardCollection) {
[INFO] [stderr]    |                           ----^^^^^
[INFO] [stderr]    |                           |
[INFO] [stderr]    |                           help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> chess_engine/src/pieces/moves.rs:18:5
[INFO] [stderr]    |
[INFO] [stderr] 18 |     mut x: i32,
[INFO] [stderr]    |     ----^
[INFO] [stderr]    |     |
[INFO] [stderr]    |     help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: 15 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::mem::replace`
[INFO] [stderr]   --> chess_engine/src/lib.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 | use std::mem::replace;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `pos`
[INFO] [stderr]    --> chess_engine/src/lib.rs:232:52
[INFO] [stderr]     |
[INFO] [stderr] 232 |         let pieces = self.enumerate_pieces(|piece, pos| piece.team != team);
[INFO] [stderr]     |                                                    ^^^ help: if this is intentional, prefix it with an underscore: `_pos`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `point`
[INFO] [stderr]    --> chess_engine/src/lib.rs:334:39
[INFO] [stderr]     |
[INFO] [stderr] 334 |         self.enumerate_pieces(|piece, point| piece.team == self.current_player)
[INFO] [stderr]     |                                       ^^^^^ help: if this is intentional, prefix it with an underscore: `_point`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `point`
[INFO] [stderr]    --> chess_engine/src/lib.rs:338:39
[INFO] [stderr]     |
[INFO] [stderr] 338 |         self.enumerate_pieces(|piece, point| piece.necessity)
[INFO] [stderr]     |                                       ^^^^^ help: if this is intentional, prefix it with an underscore: `_point`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `x`
[INFO] [stderr]    --> chess_engine/src/lib.rs:342:40
[INFO] [stderr]     |
[INFO] [stderr] 342 |         self.enumerate_pieces(|piece, (x, y)| piece.team != self.current_player)
[INFO] [stderr]     |                                        ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `y`
[INFO] [stderr]    --> chess_engine/src/lib.rs:342:43
[INFO] [stderr]     |
[INFO] [stderr] 342 |         self.enumerate_pieces(|piece, (x, y)| piece.team != self.current_player)
[INFO] [stderr]     |                                           ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `only_lethal`
[INFO] [stderr]    --> chess_engine/src/pieces/moves.rs:123:61
[INFO] [stderr]     |
[INFO] [stderr] 123 | pub fn pawn_moves(piece: &Piece, pos: Point, board: &Board, only_lethal: bool) -> MoveCollection {
[INFO] [stderr]     |                                                             ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_only_lethal`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `point`
[INFO] [stderr]    --> chess_engine/src/pieces/moves.rs:164:52
[INFO] [stderr]     |
[INFO] [stderr] 164 |         for rook in board.enumerate_pieces(|piece, point| {
[INFO] [stderr]     |                                                    ^^^^^ help: if this is intentional, prefix it with an underscore: `_point`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `only_lethal`
[INFO] [stderr]    --> chess_engine/src/pieces/moves.rs:196:61
[INFO] [stderr]     |
[INFO] [stderr] 196 | pub fn rook_moves(piece: &Piece, pos: Point, board: &Board, only_lethal: bool) -> MoveCollection {
[INFO] [stderr]     |                                                             ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_only_lethal`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `only_lethal`
[INFO] [stderr]    --> chess_engine/src/pieces/moves.rs:208:63
[INFO] [stderr]     |
[INFO] [stderr] 208 | pub fn bishop_moves(piece: &Piece, pos: Point, board: &Board, only_lethal: bool) -> MoveCollection {
[INFO] [stderr]     |                                                               ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_only_lethal`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `only_lethal`
[INFO] [stderr]    --> chess_engine/src/pieces/moves.rs:219:62
[INFO] [stderr]     |
[INFO] [stderr] 219 | pub fn queen_moves(piece: &Piece, pos: Point, board: &Board, only_lethal: bool) -> MoveCollection {
[INFO] [stderr]     |                                                              ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_only_lethal`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `only_lethal`
[INFO] [stderr]    --> chess_engine/src/pieces/moves.rs:234:63
[INFO] [stderr]     |
[INFO] [stderr] 234 | pub fn knight_moves(piece: &Piece, pos: Point, board: &Board, only_lethal: bool) -> MoveCollection {
[INFO] [stderr]     |                                                               ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_only_lethal`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `point`
[INFO] [stderr]   --> chess_engine/src/lib.rs:21:44
[INFO] [stderr]    |
[INFO] [stderr] 21 |             board.enumerate_pieces(|piece, point| !piece.necessity && piece.name != "Rook")
[INFO] [stderr]    |                                            ^^^^^ help: if this is intentional, prefix it with an underscore: `_point`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `point`
[INFO] [stderr]   --> chess_engine/src/lib.rs:65:44
[INFO] [stderr]    |
[INFO] [stderr] 65 |             board.enumerate_pieces(|piece, point| !piece.necessity && piece.name != "Rook")
[INFO] [stderr]    |                                            ^^^^^ help: if this is intentional, prefix it with an underscore: `_point`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]    --> chess_engine/src/lib.rs:162:13
[INFO] [stderr]     |
[INFO] [stderr] 162 |         for i in 0..100 {
[INFO] [stderr]     |             ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> chess_engine/src/chess_move.rs:52:27
[INFO] [stderr]    |
[INFO] [stderr] 52 |     fn perform(&mut self, mut tiles: &mut BoardCollection) {
[INFO] [stderr]    |                           ----^^^^^
[INFO] [stderr]    |                           |
[INFO] [stderr]    |                           help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> chess_engine/src/chess_move.rs:68:27
[INFO] [stderr]    |
[INFO] [stderr] 68 |     fn reverse(&mut self, mut tiles: &mut BoardCollection) {
[INFO] [stderr]    |                           ----^^^^^
[INFO] [stderr]    |                           |
[INFO] [stderr]    |                           help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> chess_engine/src/pieces/moves.rs:18:5
[INFO] [stderr]    |
[INFO] [stderr] 18 |     mut x: i32,
[INFO] [stderr]    |     ----^
[INFO] [stderr]    |     |
[INFO] [stderr]    |     help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: 18 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 3.85s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/chess_engine-d0da17fd744c6e6a)
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test tests::en_passant ... ok
[INFO] [stdout] test tests::castling ... ok
[INFO] [stdout] test tests::pawn_move ... ok
[INFO] [stdout] test tests::check ... ok
[INFO] [stdout] test tests::queen_move ... ok
[INFO] [stdout] test tests::history ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/gui-628cacda51c00d55)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests chess_engine
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "ea9d6d2c72b234e82b97ed30f001f52d0cd3233820ad39d723a08ff69bca39d3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ea9d6d2c72b234e82b97ed30f001f52d0cd3233820ad39d723a08ff69bca39d3", kill_on_drop: false }`
[INFO] [stdout] ea9d6d2c72b234e82b97ed30f001f52d0cd3233820ad39d723a08ff69bca39d3