[INFO] cloning repository https://github.com/SSJDeathSpawnMod/snake_game
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/SSJDeathSpawnMod/snake_game" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSSJDeathSpawnMod%2Fsnake_game"`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSSJDeathSpawnMod%2Fsnake_game'...
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 33e2bdacd602a2be8b0643f3012797e2119f26f4
[INFO] checking SSJDeathSpawnMod/snake_game against master#2748a9fd93dd1a00a4521f4f16de5befbf77f6cd for pr-62262-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSSJDeathSpawnMod%2Fsnake_game" "/workspace/builds/worker-7/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/SSJDeathSpawnMod/snake_game on toolchain 2748a9fd93dd1a00a4521f4f16de5befbf77f6cd
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/SSJDeathSpawnMod/snake_game
[INFO] finished tweaking git repo https://github.com/SSJDeathSpawnMod/snake_game
[INFO] tweaked toml for git repo https://github.com/SSJDeathSpawnMod/snake_game written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/SSJDeathSpawnMod/snake_game already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] ba2014701af6cb28e0eb5e8eedb6e32e9506ba45f33eb874889f741ff8dc9549
[INFO] running `"docker" "start" "-a" "ba2014701af6cb28e0eb5e8eedb6e32e9506ba45f33eb874889f741ff8dc9549"`
[INFO] [stderr]    Compiling serde v1.0.81
[INFO] [stderr]     Checking arrayvec v0.4.8
[INFO] [stderr]    Compiling wayland-scanner v0.21.7
[INFO] [stderr]     Checking nix v0.11.0
[INFO] [stderr]     Checking approx v0.3.0
[INFO] [stderr]     Checking shared_library v0.1.9
[INFO] [stderr]     Checking memmap v0.6.2
[INFO] [stderr]     Checking nix v0.12.0
[INFO] [stderr]     Checking memmap v0.7.0
[INFO] [stderr]    Compiling syn v0.15.22
[INFO] [stderr]    Compiling gl_generator v0.10.0
[INFO] [stderr]     Checking x11-dl v2.18.3
[INFO] [stderr]     Checking ordered-float v0.5.2
[INFO] [stderr]     Checking parking_lot_core v0.3.1
[INFO] [stderr]    Compiling gl v0.10.0
[INFO] [stderr]    Compiling gfx_gl v0.5.0
[INFO] [stderr]    Compiling glutin v0.18.0
[INFO] [stderr]     Checking wayland-sys v0.21.7
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[INFO] [stderr]     Checking osmesa-sys v0.1.2
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[INFO] [stderr]     Checking piston2d-graphics v0.28.0
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[INFO] [stderr]     Checking rayon-core v1.4.1
[INFO] [stderr]    Compiling gl v0.11.0
[INFO] [stderr]    Compiling glutin v0.19.0
[INFO] [stderr]     Checking rayon v1.0.3
[INFO] [stderr]     Checking wayland-commons v0.21.7
[INFO] [stderr]     Checking smithay-client-toolkit v0.3.0
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[INFO] [stderr]     Checking jpeg-decoder v0.1.15
[INFO] [stderr]     Checking smithay-client-toolkit v0.4.3
[INFO] [stderr]    Compiling serde_derive v1.0.81
[INFO] [stderr]    Compiling derivative v1.0.2
[INFO] [stderr]    Compiling num-derive v0.2.3
[INFO] [stderr]     Checking winit v0.18.0
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[INFO] [stderr]     Checking gfx_core v0.8.3
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[INFO] [stderr]     Checking piston v0.37.0
[INFO] [stderr]     Checking piston v0.39.0
[INFO] [stderr]     Checking gfx v0.17.1
[INFO] [stderr]     Checking gfx_device_gl v0.15.3
[INFO] [stderr]     Checking piston-gfx_texture v0.34.0
[INFO] [stderr]     Checking piston2d-gfx_graphics v0.52.0
[INFO] [stderr]     Checking piston_window v0.81.0
[INFO] [stderr]     Checking snake_game v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: the item `graphics` is imported redundantly
[INFO] [stderr]   --> src/main.rs:36:13
[INFO] [stderr]    |
[INFO] [stderr] 2  | extern crate graphics;
[INFO] [stderr]    | ---------------------- the item `graphics` is already imported here
[INFO] [stderr] ...
[INFO] [stderr] 36 |         use graphics;
[INFO] [stderr]    |             ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: the item `graphics` is imported redundantly
[INFO] [stderr]    --> src/main.rs:107:13
[INFO] [stderr]     |
[INFO] [stderr] 2   | extern crate graphics;
[INFO] [stderr]     | ---------------------- the item `graphics` is already imported here
[INFO] [stderr] ...
[INFO] [stderr] 107 |         use graphics;
[INFO] [stderr]     |             ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: the item `graphics` is imported redundantly
[INFO] [stderr]    --> src/main.rs:146:13
[INFO] [stderr]     |
[INFO] [stderr] 2   | extern crate graphics;
[INFO] [stderr]     | ---------------------- the item `graphics` is already imported here
[INFO] [stderr] ...
[INFO] [stderr] 146 |         use graphics;
[INFO] [stderr]     |             ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `u`
[INFO] [stderr]    --> src/main.rs:214:21
[INFO] [stderr]     |
[INFO] [stderr] 214 |         if let Some(u) = e.update_args() {
[INFO] [stderr]     |                     ^ help: consider prefixing with an underscore: `_u`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `c`
[INFO] [stderr]   --> src/main.rs:45:42
[INFO] [stderr]    |
[INFO] [stderr] 45 |             self.gl.draw(arg.viewport(),|c,gl| {
[INFO] [stderr]    |                                          ^ help: consider prefixing with an underscore: `_c`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `gl`
[INFO] [stderr]   --> src/main.rs:45:44
[INFO] [stderr]    |
[INFO] [stderr] 45 |             self.gl.draw(arg.viewport(),|c,gl| {
[INFO] [stderr]    |                                            ^^ help: consider prefixing with an underscore: `_gl`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `WHITE`
[INFO] [stderr]   --> src/main.rs:39:13
[INFO] [stderr]    |
[INFO] [stderr] 39 |         let WHITE: [f32; 4] = [1.0, 1.0, 1.0, 1.0];
[INFO] [stderr]    |             ^^^^^ help: consider prefixing with an underscore: `_WHITE`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `GREEN` should have a snake case name
[INFO] [stderr]   --> src/main.rs:37:13
[INFO] [stderr]    |
[INFO] [stderr] 37 |         let GREEN: [f32; 4] = [0.0, 1.0, 0.0, 1.0];
[INFO] [stderr]    |             ^^^^^ help: convert the identifier to snake case: `green`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable `BLACK` should have a snake case name
[INFO] [stderr]   --> src/main.rs:38:13
[INFO] [stderr]    |
[INFO] [stderr] 38 |         let BLACK: [f32; 4] = [0.0, 0.0, 0.0, 1.0];
[INFO] [stderr]    |             ^^^^^ help: convert the identifier to snake case: `black`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `WHITE` should have a snake case name
[INFO] [stderr]   --> src/main.rs:39:13
[INFO] [stderr]    |
[INFO] [stderr] 39 |         let WHITE: [f32; 4] = [1.0, 1.0, 1.0, 1.0];
[INFO] [stderr]    |             ^^^^^ help: convert the identifier to snake case: `white`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `RED` should have a snake case name
[INFO] [stderr]    --> src/main.rs:109:13
[INFO] [stderr]     |
[INFO] [stderr] 109 |         let RED: [f32; 4] = [1.0, 0.0, 0.0, 1.0];
[INFO] [stderr]     |             ^^^ help: convert the identifier to snake case: `red`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `GREY` should have a snake case name
[INFO] [stderr]    --> src/main.rs:147:13
[INFO] [stderr]     |
[INFO] [stderr] 147 |         let GREY: [f32; 4] = [0.5, 0.5, 0.5, 1.0];
[INFO] [stderr]     |             ^^^^ help: convert the identifier to snake case: `grey`
[INFO] [stderr] 
[INFO] [stderr] warning: the item `graphics` is imported redundantly
[INFO] [stderr]   --> src/main.rs:36:13
[INFO] [stderr]    |
[INFO] [stderr] 2  | extern crate graphics;
[INFO] [stderr]    | ---------------------- the item `graphics` is already imported here
[INFO] [stderr] ...
[INFO] [stderr] 36 |         use graphics;
[INFO] [stderr]    |             ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: the item `graphics` is imported redundantly
[INFO] [stderr]    --> src/main.rs:107:13
[INFO] [stderr]     |
[INFO] [stderr] 2   | extern crate graphics;
[INFO] [stderr]     | ---------------------- the item `graphics` is already imported here
[INFO] [stderr] ...
[INFO] [stderr] 107 |         use graphics;
[INFO] [stderr]     |             ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: the item `graphics` is imported redundantly
[INFO] [stderr]    --> src/main.rs:146:13
[INFO] [stderr]     |
[INFO] [stderr] 2   | extern crate graphics;
[INFO] [stderr]     | ---------------------- the item `graphics` is already imported here
[INFO] [stderr] ...
[INFO] [stderr] 146 |         use graphics;
[INFO] [stderr]     |             ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `u`
[INFO] [stderr]    --> src/main.rs:214:21
[INFO] [stderr]     |
[INFO] [stderr] 214 |         if let Some(u) = e.update_args() {
[INFO] [stderr]     |                     ^ help: consider prefixing with an underscore: `_u`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `c`
[INFO] [stderr]   --> src/main.rs:45:42
[INFO] [stderr]    |
[INFO] [stderr] 45 |             self.gl.draw(arg.viewport(),|c,gl| {
[INFO] [stderr]    |                                          ^ help: consider prefixing with an underscore: `_c`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `gl`
[INFO] [stderr]   --> src/main.rs:45:44
[INFO] [stderr]    |
[INFO] [stderr] 45 |             self.gl.draw(arg.viewport(),|c,gl| {
[INFO] [stderr]    |                                            ^^ help: consider prefixing with an underscore: `_gl`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `WHITE`
[INFO] [stderr]   --> src/main.rs:39:13
[INFO] [stderr]    |
[INFO] [stderr] 39 |         let WHITE: [f32; 4] = [1.0, 1.0, 1.0, 1.0];
[INFO] [stderr]    |             ^^^^^ help: consider prefixing with an underscore: `_WHITE`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `GREEN` should have a snake case name
[INFO] [stderr]   --> src/main.rs:37:13
[INFO] [stderr]    |
[INFO] [stderr] 37 |         let GREEN: [f32; 4] = [0.0, 1.0, 0.0, 1.0];
[INFO] [stderr]    |             ^^^^^ help: convert the identifier to snake case: `green`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable `BLACK` should have a snake case name
[INFO] [stderr]   --> src/main.rs:38:13
[INFO] [stderr]    |
[INFO] [stderr] 38 |         let BLACK: [f32; 4] = [0.0, 0.0, 0.0, 1.0];
[INFO] [stderr]    |             ^^^^^ help: convert the identifier to snake case: `black`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `WHITE` should have a snake case name
[INFO] [stderr]   --> src/main.rs:39:13
[INFO] [stderr]    |
[INFO] [stderr] 39 |         let WHITE: [f32; 4] = [1.0, 1.0, 1.0, 1.0];
[INFO] [stderr]    |             ^^^^^ help: convert the identifier to snake case: `white`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `RED` should have a snake case name
[INFO] [stderr]    --> src/main.rs:109:13
[INFO] [stderr]     |
[INFO] [stderr] 109 |         let RED: [f32; 4] = [1.0, 0.0, 0.0, 1.0];
[INFO] [stderr]     |             ^^^ help: convert the identifier to snake case: `red`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `GREY` should have a snake case name
[INFO] [stderr]    --> src/main.rs:147:13
[INFO] [stderr]     |
[INFO] [stderr] 147 |         let GREY: [f32; 4] = [0.5, 0.5, 0.5, 1.0];
[INFO] [stderr]     |             ^^^^ help: convert the identifier to snake case: `grey`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3m 17s
[INFO] running `"docker" "inspect" "ba2014701af6cb28e0eb5e8eedb6e32e9506ba45f33eb874889f741ff8dc9549"`
[INFO] running `"docker" "rm" "-f" "ba2014701af6cb28e0eb5e8eedb6e32e9506ba45f33eb874889f741ff8dc9549"`
[INFO] [stdout] ba2014701af6cb28e0eb5e8eedb6e32e9506ba45f33eb874889f741ff8dc9549