[INFO] cloning repository https://github.com/MrSecrets/classi-chess-
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/MrSecrets/classi-chess-" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMrSecrets%2Fclassi-chess-", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMrSecrets%2Fclassi-chess-'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 78735c17466d5246e871deafa1ff1acbed3ca535
[INFO] checking MrSecrets/classi-chess- against master#377656d3dd3f9c23a9c8713e163f4365a5261a84 for pr-146470-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMrSecrets%2Fclassi-chess-" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/MrSecrets/classi-chess-
[INFO] finished tweaking git repo https://github.com/MrSecrets/classi-chess-
[INFO] tweaked toml for git repo https://github.com/MrSecrets/classi-chess- written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/MrSecrets/classi-chess- on toolchain 377656d3dd3f9c23a9c8713e163f4365a5261a84
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+377656d3dd3f9c23a9c8713e163f4365a5261a84" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/MrSecrets/classi-chess- already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+377656d3dd3f9c23a9c8713e163f4365a5261a84" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded accesskit_unix v0.13.1
[INFO] [stderr]   Downloaded egui_glow v0.31.1
[INFO] [stderr]   Downloaded egui-wgpu v0.31.1
[INFO] [stderr]   Downloaded accesskit_atspi_common v0.10.1
[INFO] [stderr]   Downloaded arboard v3.5.0
[INFO] [stderr]   Downloaded egui-winit v0.31.1
[INFO] [stderr]   Downloaded eframe v0.31.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+377656d3dd3f9c23a9c8713e163f4365a5261a84" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fa58618565550a969d2800abda2b79043af1c3146a01b3e1b61097324c6c3c15
[INFO] running `Command { std: "docker" "start" "-a" "fa58618565550a969d2800abda2b79043af1c3146a01b3e1b61097324c6c3c15", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fa58618565550a969d2800abda2b79043af1c3146a01b3e1b61097324c6c3c15", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fa58618565550a969d2800abda2b79043af1c3146a01b3e1b61097324c6c3c15", kill_on_drop: false }`
[INFO] [stdout] fa58618565550a969d2800abda2b79043af1c3146a01b3e1b61097324c6c3c15
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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" "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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+377656d3dd3f9c23a9c8713e163f4365a5261a84" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9872711d3827a1a411d3af059458571c64e5c7792d713bb28b607353bd224bf8
[INFO] running `Command { std: "docker" "start" "-a" "9872711d3827a1a411d3af059458571c64e5c7792d713bb28b607353bd224bf8", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.173
[INFO] [stderr]     Checking log v0.4.27
[INFO] [stderr]     Checking smallvec v1.15.1
[INFO] [stderr]    Compiling memchr v2.7.5
[INFO] [stderr]     Checking libloading v0.8.8
[INFO] [stderr]    Compiling rustix v0.38.44
[INFO] [stderr]    Compiling indexmap v2.9.0
[INFO] [stderr]     Checking linux-raw-sys v0.4.15
[INFO] [stderr]    Compiling syn v2.0.103
[INFO] [stderr]    Compiling wayland-sys v0.31.6
[INFO] [stderr]    Compiling wayland-backend v0.3.10
[INFO] [stderr]     Checking downcast-rs v1.2.1
[INFO] [stderr]    Compiling wayland-client v0.31.10
[INFO] [stderr]     Checking async-channel v2.3.1
[INFO] [stderr]    Compiling nix v0.29.0
[INFO] [stderr]    Compiling khronos_api v3.1.0
[INFO] [stderr]     Checking dlib v0.5.2
[INFO] [stderr]     Checking ttf-parser v0.25.1
[INFO] [stderr]    Compiling getrandom v0.3.3
[INFO] [stderr]     Checking sha1 v0.10.6
[INFO] [stderr]    Compiling ahash v0.8.12
[INFO] [stderr]    Compiling xml-rs v0.8.26
[INFO] [stderr]    Compiling x11-dl v2.21.0
[INFO] [stderr]     Checking blocking v1.6.1
[INFO] [stderr]    Compiling lock_api v0.4.13
[INFO] [stderr]    Compiling smithay-client-toolkit v0.19.2
[INFO] [stderr]     Checking xkeysym v0.2.1
[INFO] [stderr]     Checking xcursor v0.3.8
[INFO] [stderr]     Checking cursor-icon v1.2.0
[INFO] [stderr]     Checking async-fs v2.1.2
[INFO] [stderr]     Checking miniz_oxide v0.8.9
[INFO] [stderr]     Checking num-bigint v0.4.6
[INFO] [stderr]     Checking strict-num v0.1.1
[INFO] [stderr]    Compiling built v0.7.7
[INFO] [stderr]     Checking accesskit v0.17.1
[INFO] [stderr]     Checking nom v7.1.3
[INFO] [stderr]     Checking crc32fast v1.4.2
[INFO] [stderr]     Checking x11rb-protocol v0.13.1
[INFO] [stderr]     Checking as-raw-xcb-connection v1.0.1
[INFO] [stderr]    Compiling gl_generator v0.14.0
[INFO] [stderr]     Checking hashbrown v0.15.4
[INFO] [stderr]    Compiling quick-xml v0.37.5
[INFO] [stderr]    Compiling rav1e v0.7.1
[INFO] [stderr]    Compiling toml_edit v0.22.27
[INFO] [stderr]     Checking maybe-rayon v0.1.1
[INFO] [stderr]     Checking flate2 v1.1.2
[INFO] [stderr]     Checking itertools v0.12.1
[INFO] [stderr]     Checking immutable-chunkmap v2.0.6
[INFO] [stderr]    Compiling simd_helpers v0.1.0
[INFO] [stderr]    Compiling winit v0.30.11
[INFO] [stderr]     Checking raw-window-handle v0.6.2
[INFO] [stderr]     Checking weezl v0.1.10
[INFO] [stderr]     Checking num-rational v0.4.2
[INFO] [stderr]     Checking avif-serialize v0.8.3
[INFO] [stderr]     Checking xkbcommon-dl v0.4.2
[INFO] [stderr]     Checking half v2.6.0
[INFO] [stderr]     Checking dpi v0.1.2
[INFO] [stderr]     Checking smol_str v0.2.2
[INFO] [stderr]     Checking epaint_default_fonts v0.31.1
[INFO] [stderr]    Compiling glutin_glx_sys v0.6.1
[INFO] [stderr]    Compiling glutin_egl_sys v0.7.1
[INFO] [stderr]     Checking accesskit_consumer v0.26.0
[INFO] [stderr]     Checking nohash-hasher v0.2.0
[INFO] [stderr]     Checking image-webp v0.2.2
[INFO] [stderr]     Checking png v0.17.16
[INFO] [stderr]     Checking gif v0.13.1
[INFO] [stderr]     Checking zune-jpeg v0.4.17
[INFO] [stderr]    Compiling wayland-scanner v0.31.6
[INFO] [stderr]     Checking exr v1.73.0
[INFO] [stderr]     Checking tiff v0.9.1
[INFO] [stderr]     Checking form_urlencoded v1.2.1
[INFO] [stderr]    Compiling glutin v0.32.3
[INFO] [stderr]    Compiling bumpalo v3.18.1
[INFO] [stderr]    Compiling glutin-winit v0.5.0
[INFO] [stderr]     Checking getrandom v0.2.16
[INFO] [stderr]     Checking xdg-home v1.3.0
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking memmap2 v0.9.5
[INFO] [stderr]     Checking parking_lot_core v0.9.11
[INFO] [stderr]     Checking parking_lot v0.12.4
[INFO] [stderr]     Checking glow v0.16.0
[INFO] [stderr]    Compiling litrs v0.4.1
[INFO] [stderr]     Checking web-time v1.1.0
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking owned_ttf_parser v0.25.0
[INFO] [stderr]     Checking ab_glyph v0.2.29
[INFO] [stderr]    Compiling document-features v0.2.11
[INFO] [stderr]    Compiling proc-macro-crate v3.3.0
[INFO] [stderr]    Compiling zvariant_utils v2.1.0
[INFO] [stderr]    Compiling synstructure v0.13.2
[INFO] [stderr]    Compiling wasm-bindgen-backend v0.2.100
[INFO] [stderr]    Compiling serde_derive v1.0.219
[INFO] [stderr]    Compiling enumflags2_derive v0.7.12
[INFO] [stderr]    Compiling tracing-attributes v0.1.29
[INFO] [stderr]    Compiling zvariant_derive v4.2.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.69
[INFO] [stderr]    Compiling bytemuck_derive v1.9.3
[INFO] [stderr]    Compiling zerovec-derive v0.11.1
[INFO] [stderr]    Compiling displaydoc v0.2.5
[INFO] [stderr]    Compiling futures-macro v0.3.31
[INFO] [stderr]    Compiling async-trait v0.1.88
[INFO] [stderr]    Compiling zbus_macros v4.4.0
[INFO] [stderr]    Compiling profiling-procmacros v1.0.16
[INFO] [stderr]    Compiling zerofrom-derive v0.1.6
[INFO] [stderr]    Compiling yoke-derive v0.8.0
[INFO] [stderr]    Compiling serde_repr v0.1.20
[INFO] [stderr]    Compiling equator-macro v0.4.2
[INFO] [stderr]     Checking profiling v1.0.16
[INFO] [stderr]     Checking wayland-csd-frame v0.3.0
[INFO] [stderr]    Compiling num-derive v0.4.2
[INFO] [stderr]     Checking futures-util v0.3.31
[INFO] [stderr]    Compiling arg_enum_proc_macro v0.3.4
[INFO] [stderr]     Checking bytemuck v1.23.1
[INFO] [stderr]     Checking tiny-skia-path v0.11.4
[INFO] [stderr]     Checking emath v0.31.1
[INFO] [stderr]     Checking qoi v0.4.1
[INFO] [stderr]     Checking tracing v0.1.41
[INFO] [stderr]     Checking equator v0.4.2
[INFO] [stderr]    Compiling wasm-bindgen-macro-support v0.2.100
[INFO] [stderr]     Checking zerofrom v0.1.6
[INFO] [stderr]     Checking polling v3.8.0
[INFO] [stderr]     Checking yoke v0.8.0
[INFO] [stderr]     Checking thiserror v1.0.69
[INFO] [stderr]     Checking ecolor v0.31.1
[INFO] [stderr]     Checking async-io v2.4.1
[INFO] [stderr]     Checking calloop v0.13.0
[INFO] [stderr]     Checking wayland-protocols v0.32.8
[INFO] [stderr]     Checking wayland-cursor v0.31.10
[INFO] [stderr]     Checking aligned-vec v0.6.4
[INFO] [stderr]     Checking epaint v0.31.1
[INFO] [stderr]     Checking zerovec v0.11.2
[INFO] [stderr]     Checking zerotrie v0.2.2
[INFO] [stderr]     Checking v_frame v0.3.9
[INFO] [stderr]     Checking av1-grain v0.2.4
[INFO] [stderr]     Checking tiny-skia v0.11.4
[INFO] [stderr]     Checking calloop-wayland-source v0.3.0
[INFO] [stderr]    Compiling wasm-bindgen-macro v0.2.100
[INFO] [stderr]     Checking tinystr v0.8.1
[INFO] [stderr]     Checking potential_utf v0.1.2
[INFO] [stderr]     Checking icu_collections v2.0.0
[INFO] [stderr]     Checking icu_locale_core v2.0.0
[INFO] [stderr]     Checking wasm-bindgen v0.2.100
[INFO] [stderr]     Checking egui v0.31.1
[INFO] [stderr]     Checking serde v1.0.219
[INFO] [stderr]     Checking icu_provider v2.0.0
[INFO] [stderr]     Checking icu_properties v2.0.1
[INFO] [stderr]     Checking icu_normalizer v2.0.0
[INFO] [stderr]     Checking idna_adapter v1.2.1
[INFO] [stderr]     Checking idna v1.0.3
[INFO] [stderr]     Checking url v2.5.4
[INFO] [stderr]     Checking enumflags2 v0.7.12
[INFO] [stderr]     Checking quick-xml v0.30.0
[INFO] [stderr]     Checking zvariant v4.2.0
[INFO] [stderr]     Checking webbrowser v1.0.5
[INFO] [stderr]     Checking wayland-protocols-wlr v0.3.8
[INFO] [stderr]     Checking wayland-protocols-plasma v0.3.8
[INFO] [stderr]     Checking egui_glow v0.31.1
[INFO] [stderr]     Checking x11rb v0.13.1
[INFO] [stderr]     Checking sctk-adwaita v0.10.1
[INFO] [stderr]     Checking smithay-clipboard v0.7.2
[INFO] [stderr]     Checking zbus_names v3.0.0
[INFO] [stderr]     Checking zbus_xml v4.0.0
[INFO] [stderr]     Checking zbus v4.4.0
[INFO] [stderr]     Checking ravif v0.11.12
[INFO] [stderr]     Checking zbus-lockstep v0.4.4
[INFO] [stderr]     Checking image v0.25.6
[INFO] [stderr]    Compiling zbus-lockstep-macros v0.4.4
[INFO] [stderr]     Checking arboard v3.5.0
[INFO] [stderr]     Checking atspi-common v0.6.0
[INFO] [stderr]     Checking atspi-proxies v0.6.0
[INFO] [stderr]     Checking accesskit_atspi_common v0.10.1
[INFO] [stderr]     Checking atspi-connection v0.6.0
[INFO] [stderr]     Checking atspi v0.22.0
[INFO] [stderr]     Checking accesskit_unix v0.13.1
[INFO] [stderr]     Checking accesskit_winit v0.23.1
[INFO] [stderr]     Checking egui-winit v0.31.1
[INFO] [stderr]     Checking eframe v0.31.1
[INFO] [stderr]     Checking chess_egui v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `PieceKind`
[INFO] [stdout]  --> src/pieces/pawn.rs:3:27
[INFO] [stdout]   |
[INFO] [stdout] 3 | use crate::{Piece, Color, PieceKind};
[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: `PieceKind`
[INFO] [stdout]  --> src/pieces/rook.rs:3:27
[INFO] [stdout]   |
[INFO] [stdout] 3 | use crate::{Piece, Color, PieceKind};
[INFO] [stdout]   |                           ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `PieceKind`
[INFO] [stdout]  --> src/pieces/knight.rs:3:27
[INFO] [stdout]   |
[INFO] [stdout] 3 | use crate::{Piece, Color, PieceKind};
[INFO] [stdout]   |                           ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `PieceKind`
[INFO] [stdout]  --> src/pieces/bishop.rs:3:27
[INFO] [stdout]   |
[INFO] [stdout] 3 | use crate::{Piece, Color, PieceKind};
[INFO] [stdout]   |                           ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `PieceKind`
[INFO] [stdout]  --> src/pieces/queen.rs:3:27
[INFO] [stdout]   |
[INFO] [stdout] 3 | use crate::{Piece, Color, PieceKind};
[INFO] [stdout]   |                           ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `PieceKind`
[INFO] [stdout]  --> src/pieces/king.rs:3:27
[INFO] [stdout]   |
[INFO] [stdout] 3 | use crate::{Piece, Color, PieceKind};
[INFO] [stdout]   |                           ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `PieceKind`
[INFO] [stdout]  --> src/pieces/pawn.rs:3:27
[INFO] [stdout]   |
[INFO] [stdout] 3 | use crate::{Piece, Color, PieceKind};
[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: `PieceKind`
[INFO] [stdout]  --> src/pieces/rook.rs:3:27
[INFO] [stdout]   |
[INFO] [stdout] 3 | use crate::{Piece, Color, PieceKind};
[INFO] [stdout]   |                           ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `PieceKind`
[INFO] [stdout]  --> src/pieces/knight.rs:3:27
[INFO] [stdout]   |
[INFO] [stdout] 3 | use crate::{Piece, Color, PieceKind};
[INFO] [stdout]   |                           ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `PieceKind`
[INFO] [stdout]  --> src/pieces/bishop.rs:3:27
[INFO] [stdout]   |
[INFO] [stdout] 3 | use crate::{Piece, Color, PieceKind};
[INFO] [stdout]   |                           ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `PieceKind`
[INFO] [stdout]  --> src/pieces/queen.rs:3:27
[INFO] [stdout]   |
[INFO] [stdout] 3 | use crate::{Piece, Color, PieceKind};
[INFO] [stdout]   |                           ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `PieceKind`
[INFO] [stdout]  --> src/pieces/king.rs:3:27
[INFO] [stdout]   |
[INFO] [stdout] 3 | use crate::{Piece, Color, PieceKind};
[INFO] [stdout]   |                           ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:299:33
[INFO] [stdout]     |
[INFO] [stdout] 299 | ...                   let mut temp = ChessApp {
[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: `app`
[INFO] [stdout]    --> src/main.rs:341:9
[INFO] [stdout]     |
[INFO] [stdout] 341 |     let app = ChessApp::new();
[INFO] [stdout]     |         ^^^ help: if this is intentional, prefix it with an underscore: `_app`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `piece_unicode` is never used
[INFO] [stdout]    --> src/main.rs:159:8
[INFO] [stdout]     |
[INFO] [stdout] 158 | impl ChessApp {
[INFO] [stdout]     | ------------- method in this implementation
[INFO] [stdout] 159 |     fn piece_unicode(&self, x: usize, y: usize) -> &'static str {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:299:33
[INFO] [stdout]     |
[INFO] [stdout] 299 | ...                   let mut temp = ChessApp {
[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: `app`
[INFO] [stdout]    --> src/main.rs:341:9
[INFO] [stdout]     |
[INFO] [stdout] 341 |     let app = ChessApp::new();
[INFO] [stdout]     |         ^^^ help: if this is intentional, prefix it with an underscore: `_app`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `piece_unicode` is never used
[INFO] [stdout]    --> src/main.rs:159:8
[INFO] [stdout]     |
[INFO] [stdout] 158 | impl ChessApp {
[INFO] [stdout]     | ------------- method in this implementation
[INFO] [stdout] 159 |     fn piece_unicode(&self, x: usize, y: usize) -> &'static str {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1m 20s
[INFO] running `Command { std: "docker" "inspect" "9872711d3827a1a411d3af059458571c64e5c7792d713bb28b607353bd224bf8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9872711d3827a1a411d3af059458571c64e5c7792d713bb28b607353bd224bf8", kill_on_drop: false }`
[INFO] [stdout] 9872711d3827a1a411d3af059458571c64e5c7792d713bb28b607353bd224bf8
