[INFO] updating cached repository MehdiSaffar/sdl_snake_rust
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/MehdiSaffar/sdl_snake_rust
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/MehdiSaffar/sdl_snake_rust" "work/ex/pr-60162/sources/master#a850a426491e14186af2250549bf41256b5938d2/gh/MehdiSaffar/sdl_snake_rust"`
[INFO] [stderr] Cloning into 'work/ex/pr-60162/sources/master#a850a426491e14186af2250549bf41256b5938d2/gh/MehdiSaffar/sdl_snake_rust'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/MehdiSaffar/sdl_snake_rust" "work/ex/pr-60162/sources/try#06a150c7d11500b41499224f165e9de1de096768/gh/MehdiSaffar/sdl_snake_rust"`
[INFO] [stderr] Cloning into 'work/ex/pr-60162/sources/try#06a150c7d11500b41499224f165e9de1de096768/gh/MehdiSaffar/sdl_snake_rust'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] e20906d91f3b25c66c0b96ed15c69c68b1241501
[INFO] sha for GitHub repo MehdiSaffar/sdl_snake_rust: e20906d91f3b25c66c0b96ed15c69c68b1241501
[INFO] validating manifest of MehdiSaffar/sdl_snake_rust on toolchain master#a850a426491e14186af2250549bf41256b5938d2
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+a850a426491e14186af2250549bf41256b5938d2-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of MehdiSaffar/sdl_snake_rust on toolchain try#06a150c7d11500b41499224f165e9de1de096768
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+06a150c7d11500b41499224f165e9de1de096768-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing MehdiSaffar/sdl_snake_rust
[INFO] finished frobbing MehdiSaffar/sdl_snake_rust
[INFO] frobbed toml for MehdiSaffar/sdl_snake_rust written to work/ex/pr-60162/sources/master#a850a426491e14186af2250549bf41256b5938d2/gh/MehdiSaffar/sdl_snake_rust/Cargo.toml
[INFO] started frobbing MehdiSaffar/sdl_snake_rust
[INFO] finished frobbing MehdiSaffar/sdl_snake_rust
[INFO] frobbed toml for MehdiSaffar/sdl_snake_rust written to work/ex/pr-60162/sources/try#06a150c7d11500b41499224f165e9de1de096768/gh/MehdiSaffar/sdl_snake_rust/Cargo.toml
[INFO] crate MehdiSaffar/sdl_snake_rust already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+a850a426491e14186af2250549bf41256b5938d2-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] error: the lock file /mnt/crater-raid/crater/work/ex/pr-60162/sources/master#a850a426491e14186af2250549bf41256b5938d2/gh/MehdiSaffar/sdl_snake_rust/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+a850a426491e14186af2250549bf41256b5938d2-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+06a150c7d11500b41499224f165e9de1de096768-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+a850a426491e14186af2250549bf41256b5938d2-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+06a150c7d11500b41499224f165e9de1de096768-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking MehdiSaffar/sdl_snake_rust against master#a850a426491e14186af2250549bf41256b5938d2 for pr-60162
[INFO] running `"docker" "create" "-v" "/mnt/crater-raid/crater/work/local/target-dirs/pr-60162/worker-6/master#a850a426491e14186af2250549bf41256b5938d2:/opt/crater/target:rw,Z" "-v" "/mnt/crater-raid/crater/work/ex/pr-60162/sources/master#a850a426491e14186af2250549bf41256b5938d2/gh/MehdiSaffar/sdl_snake_rust:/opt/crater/workdir:ro,Z" "-v" "/mnt/crater-raid/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/crater-raid/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+a850a426491e14186af2250549bf41256b5938d2-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 4f41d7b758bb78f9b9ac5cf746f7d15fb425a61b826a383720074f15d02e4f60
[INFO] running `"docker" "start" "-a" "4f41d7b758bb78f9b9ac5cf746f7d15fb425a61b826a383720074f15d02e4f60"`
[INFO] [stderr]    Compiling sdl2-sys v0.21.0
[INFO] [stderr]     Checking collect-mac v0.1.0
[INFO] [stderr]     Checking sdl2 v0.21.0
[INFO] [stderr]     Checking sdl2_snake v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `sdl2::event::*`
[INFO] [stderr]   --> src/main.rs:21:5
[INFO] [stderr]    |
[INFO] [stderr] 21 | use sdl2::event::*;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `sdl2::keyboard::*`
[INFO] [stderr]   --> src/main.rs:22:5
[INFO] [stderr]    |
[INFO] [stderr] 22 | use sdl2::keyboard::*;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `sdl2::render::*`
[INFO] [stderr]   --> src/main.rs:23:5
[INFO] [stderr]    |
[INFO] [stderr] 23 | use sdl2::render::*;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `sdl2::rect::*`
[INFO] [stderr]   --> src/main.rs:24:5
[INFO] [stderr]    |
[INFO] [stderr] 24 | use sdl2::rect::*;
[INFO] [stderr]    |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `sdl2::pixels::*`
[INFO] [stderr]   --> src/main.rs:25:5
[INFO] [stderr]    |
[INFO] [stderr] 25 | use sdl2::pixels::*;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Duration`, `Instant`
[INFO] [stderr]   --> src/game.rs:22:17
[INFO] [stderr]    |
[INFO] [stderr] 22 | use std::time::{Duration, Instant};
[INFO] [stderr]    |                 ^^^^^^^^  ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `sdl2::VideoSubsystem`
[INFO] [stderr]   --> src/game.rs:26:5
[INFO] [stderr]    |
[INFO] [stderr] 26 | use sdl2::VideoSubsystem;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `WindowBuilder`, `Window`
[INFO] [stderr]   --> src/game.rs:27:19
[INFO] [stderr]    |
[INFO] [stderr] 27 | use sdl2::video::{Window, WindowBuilder};
[INFO] [stderr]    |                   ^^^^^^  ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `sdl2::render::Renderer`
[INFO] [stderr]   --> src/game.rs:28:5
[INFO] [stderr]    |
[INFO] [stderr] 28 | use sdl2::render::Renderer;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `sdl2::pixels::Color`
[INFO] [stderr]   --> src/game.rs:31:5
[INFO] [stderr]    |
[INFO] [stderr] 31 | use sdl2::pixels::Color;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Point`, `Rect`
[INFO] [stderr]   --> src/game.rs:32:18
[INFO] [stderr]    |
[INFO] [stderr] 32 | use sdl2::rect::{Rect, Point};
[INFO] [stderr]    |                  ^^^^  ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `snake`
[INFO] [stderr]   --> src/game.rs:34:5
[INFO] [stderr]    |
[INFO] [stderr] 34 | use snake;
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `render`
[INFO] [stderr]   --> src/game.rs:37:5
[INFO] [stderr]    |
[INFO] [stderr] 37 | use render;
[INFO] [stderr]    |     ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `vec2i`
[INFO] [stderr]   --> src/game.rs:40:5
[INFO] [stderr]    |
[INFO] [stderr] 40 | use vec2i;
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `maze`
[INFO] [stderr]   --> src/game.rs:43:5
[INFO] [stderr]    |
[INFO] [stderr] 43 | use maze;
[INFO] [stderr]    |     ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `sdl2`
[INFO] [stderr]   --> src/snake.rs:22:5
[INFO] [stderr]    |
[INFO] [stderr] 22 | use sdl2;
[INFO] [stderr]    |     ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `EventPump`, `Sdl`
[INFO] [stderr]   --> src/snake.rs:23:12
[INFO] [stderr]    |
[INFO] [stderr] 23 | use sdl2::{Sdl, EventPump};
[INFO] [stderr]    |            ^^^  ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `sdl2::render::Renderer`
[INFO] [stderr]   --> src/snake.rs:24:5
[INFO] [stderr]    |
[INFO] [stderr] 24 | use sdl2::render::Renderer;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Point`
[INFO] [stderr]   --> src/snake.rs:28:24
[INFO] [stderr]    |
[INFO] [stderr] 28 | use sdl2::rect::{Rect, Point};
[INFO] [stderr]    |                        ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `game`
[INFO] [stderr]   --> src/snake.rs:30:5
[INFO] [stderr]    |
[INFO] [stderr] 30 | use game;
[INFO] [stderr]    |     ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Game`
[INFO] [stderr]   --> src/snake.rs:31:12
[INFO] [stderr]    |
[INFO] [stderr] 31 | use game::{Game, Direction, GameEvent};
[INFO] [stderr]    |            ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `render`
[INFO] [stderr]   --> src/snake.rs:33:5
[INFO] [stderr]    |
[INFO] [stderr] 33 | use render;
[INFO] [stderr]    |     ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `vec2i`
[INFO] [stderr]   --> src/snake.rs:36:5
[INFO] [stderr]    |
[INFO] [stderr] 36 | use vec2i;
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `sdl2`
[INFO] [stderr]   --> src/maze.rs:18:5
[INFO] [stderr]    |
[INFO] [stderr] 18 | use sdl2;
[INFO] [stderr]    |     ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `game`
[INFO] [stderr]   --> src/maze.rs:22:5
[INFO] [stderr]    |
[INFO] [stderr] 22 | use game;
[INFO] [stderr]    |     ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `render`
[INFO] [stderr]   --> src/maze.rs:25:5
[INFO] [stderr]    |
[INFO] [stderr] 25 | use render;
[INFO] [stderr]    |     ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `vec2i`
[INFO] [stderr]   --> src/maze.rs:28:5
[INFO] [stderr]    |
[INFO] [stderr] 28 | use vec2i;
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `sdl2`
[INFO] [stderr]   --> src/render.rs:18:5
[INFO] [stderr]    |
[INFO] [stderr] 18 | use sdl2;
[INFO] [stderr]    |     ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Point`
[INFO] [stderr]   --> src/render.rs:20:24
[INFO] [stderr]    |
[INFO] [stderr] 20 | use sdl2::rect::{Rect, Point};
[INFO] [stderr]    |                        ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `sdl2::event::*`
[INFO] [stderr]   --> src/main.rs:21:5
[INFO] [stderr]    |
[INFO] [stderr] 21 | use sdl2::event::*;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `sdl2::keyboard::*`
[INFO] [stderr]   --> src/main.rs:22:5
[INFO] [stderr]    |
[INFO] [stderr] 22 | use sdl2::keyboard::*;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `sdl2::render::*`
[INFO] [stderr]   --> src/main.rs:23:5
[INFO] [stderr]    |
[INFO] [stderr] 23 | use sdl2::render::*;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `sdl2::rect::*`
[INFO] [stderr]   --> src/main.rs:24:5
[INFO] [stderr]    |
[INFO] [stderr] 24 | use sdl2::rect::*;
[INFO] [stderr]    |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `sdl2::pixels::*`
[INFO] [stderr]   --> src/main.rs:25:5
[INFO] [stderr]    |
[INFO] [stderr] 25 | use sdl2::pixels::*;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Duration`, `Instant`
[INFO] [stderr]   --> src/game.rs:22:17
[INFO] [stderr]    |
[INFO] [stderr] 22 | use std::time::{Duration, Instant};
[INFO] [stderr]    |                 ^^^^^^^^  ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `sdl2::VideoSubsystem`
[INFO] [stderr]   --> src/game.rs:26:5
[INFO] [stderr]    |
[INFO] [stderr] 26 | use sdl2::VideoSubsystem;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `WindowBuilder`, `Window`
[INFO] [stderr]   --> src/game.rs:27:19
[INFO] [stderr]    |
[INFO] [stderr] 27 | use sdl2::video::{Window, WindowBuilder};
[INFO] [stderr]    |                   ^^^^^^  ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `sdl2::render::Renderer`
[INFO] [stderr]   --> src/game.rs:28:5
[INFO] [stderr]    |
[INFO] [stderr] 28 | use sdl2::render::Renderer;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `sdl2::pixels::Color`
[INFO] [stderr]   --> src/game.rs:31:5
[INFO] [stderr]    |
[INFO] [stderr] 31 | use sdl2::pixels::Color;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Point`, `Rect`
[INFO] [stderr]   --> src/game.rs:32:18
[INFO] [stderr]    |
[INFO] [stderr] 32 | use sdl2::rect::{Rect, Point};
[INFO] [stderr]    |                  ^^^^  ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `snake`
[INFO] [stderr]   --> src/game.rs:34:5
[INFO] [stderr]    |
[INFO] [stderr] 34 | use snake;
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `render`
[INFO] [stderr]   --> src/game.rs:37:5
[INFO] [stderr]    |
[INFO] [stderr] 37 | use render;
[INFO] [stderr]    |     ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `vec2i`
[INFO] [stderr]   --> src/game.rs:40:5
[INFO] [stderr]    |
[INFO] [stderr] 40 | use vec2i;
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `maze`
[INFO] [stderr]   --> src/game.rs:43:5
[INFO] [stderr]    |
[INFO] [stderr] 43 | use maze;
[INFO] [stderr]    |     ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `sdl2`
[INFO] [stderr]   --> src/snake.rs:22:5
[INFO] [stderr]    |
[INFO] [stderr] 22 | use sdl2;
[INFO] [stderr]    |     ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `EventPump`, `Sdl`
[INFO] [stderr]   --> src/snake.rs:23:12
[INFO] [stderr]    |
[INFO] [stderr] 23 | use sdl2::{Sdl, EventPump};
[INFO] [stderr]    |            ^^^  ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `sdl2::render::Renderer`
[INFO] [stderr]   --> src/snake.rs:24:5
[INFO] [stderr]    |
[INFO] [stderr] 24 | use sdl2::render::Renderer;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Point`
[INFO] [stderr]   --> src/snake.rs:28:24
[INFO] [stderr]    |
[INFO] [stderr] 28 | use sdl2::rect::{Rect, Point};
[INFO] [stderr]    |                        ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `game`
[INFO] [stderr]   --> src/snake.rs:30:5
[INFO] [stderr]    |
[INFO] [stderr] 30 | use game;
[INFO] [stderr]    |     ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Game`
[INFO] [stderr]   --> src/snake.rs:31:12
[INFO] [stderr]    |
[INFO] [stderr] 31 | use game::{Game, Direction, GameEvent};
[INFO] [stderr]    |            ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `render`
[INFO] [stderr]   --> src/snake.rs:33:5
[INFO] [stderr]    |
[INFO] [stderr] 33 | use render;
[INFO] [stderr]    |     ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `vec2i`
[INFO] [stderr]   --> src/snake.rs:36:5
[INFO] [stderr]    |
[INFO] [stderr] 36 | use vec2i;
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `sdl2`
[INFO] [stderr]   --> src/maze.rs:18:5
[INFO] [stderr]    |
[INFO] [stderr] 18 | use sdl2;
[INFO] [stderr]    |     ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `game`
[INFO] [stderr]   --> src/maze.rs:22:5
[INFO] [stderr]    |
[INFO] [stderr] 22 | use game;
[INFO] [stderr]    |     ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `render`
[INFO] [stderr]   --> src/maze.rs:25:5
[INFO] [stderr]    |
[INFO] [stderr] 25 | use render;
[INFO] [stderr]    |     ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `vec2i`
[INFO] [stderr]   --> src/maze.rs:28:5
[INFO] [stderr]    |
[INFO] [stderr] 28 | use vec2i;
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `sdl2`
[INFO] [stderr]   --> src/render.rs:18:5
[INFO] [stderr]    |
[INFO] [stderr] 18 | use sdl2;
[INFO] [stderr]    |     ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Point`
[INFO] [stderr]   --> src/render.rs:20:24
[INFO] [stderr]    |
[INFO] [stderr] 20 | use sdl2::rect::{Rect, Point};
[INFO] [stderr]    |                        ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/game.rs:81:13
[INFO] [stderr]    |
[INFO] [stderr] 81 |         let mut video_subsystem = _sdl_context.video()
[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]   --> src/game.rs:87:13
[INFO] [stderr]    |
[INFO] [stderr] 87 |         let mut window = window_builder.position_centered()
[INFO] [stderr]    |             ----^^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/game.rs:81:13
[INFO] [stderr]    |
[INFO] [stderr] 81 |         let mut video_subsystem = _sdl_context.video()
[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]   --> src/game.rs:87:13
[INFO] [stderr]    |
[INFO] [stderr] 87 |         let mut window = window_builder.position_centered()
[INFO] [stderr]    |             ----^^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `window_width`
[INFO] [stderr]   --> src/game.rs:59:5
[INFO] [stderr]    |
[INFO] [stderr] 59 |     window_width: u32, // Window width in pixels
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `window_height`
[INFO] [stderr]   --> src/game.rs:60:5
[INFO] [stderr]    |
[INFO] [stderr] 60 |     window_height: u32, // Window height in pixels
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `sdl_context`
[INFO] [stderr]   --> src/game.rs:62:5
[INFO] [stderr]    |
[INFO] [stderr] 62 |     sdl_context: Sdl, // SDL Context
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/snake.rs:53:5
[INFO] [stderr]    |
[INFO] [stderr] 53 |     pub fn new() -> Self {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `at_mut`
[INFO] [stderr]    --> src/maze.rs:102:5
[INFO] [stderr]     |
[INFO] [stderr] 102 |     pub fn at_mut(&mut self, tile_pos: &Vec2i) -> Option<&Tile> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/render.rs:35:9
[INFO] [stderr]    |
[INFO] [stderr] 35 |         self.renderer.fill_rect(*rect);
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_must_use)] on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `window_width`
[INFO] [stderr]   --> src/game.rs:59:5
[INFO] [stderr]    |
[INFO] [stderr] 59 |     window_width: u32, // Window width in pixels
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `window_height`
[INFO] [stderr]   --> src/game.rs:60:5
[INFO] [stderr]    |
[INFO] [stderr] 60 |     window_height: u32, // Window height in pixels
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `sdl_context`
[INFO] [stderr]   --> src/game.rs:62:5
[INFO] [stderr]    |
[INFO] [stderr] 62 |     sdl_context: Sdl, // SDL Context
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/snake.rs:53:5
[INFO] [stderr]    |
[INFO] [stderr] 53 |     pub fn new() -> Self {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `at_mut`
[INFO] [stderr]    --> src/maze.rs:102:5
[INFO] [stderr]     |
[INFO] [stderr] 102 |     pub fn at_mut(&mut self, tile_pos: &Vec2i) -> Option<&Tile> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/render.rs:35:9
[INFO] [stderr]    |
[INFO] [stderr] 35 |         self.renderer.fill_rect(*rect);
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_must_use)] on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.01s
[INFO] running `"docker" "inspect" "4f41d7b758bb78f9b9ac5cf746f7d15fb425a61b826a383720074f15d02e4f60"`
[INFO] running `"docker" "rm" "-f" "4f41d7b758bb78f9b9ac5cf746f7d15fb425a61b826a383720074f15d02e4f60"`
[INFO] [stdout] 4f41d7b758bb78f9b9ac5cf746f7d15fb425a61b826a383720074f15d02e4f60