[INFO] updating cached repository https://github.com/ian-pacheco/RustLang-SnakeGame
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 63dd0cc8ff7df58411a01d82d399d5042e9840f7
[INFO] checking ian-pacheco/RustLang-SnakeGame against master#6250d56355d72264ece721e8d0dc95b16a6824b1 for pr-68350
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fian-pacheco%2FRustLang-SnakeGame" "/workspace/builds/worker-1/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ian-pacheco/RustLang-SnakeGame on toolchain 6250d56355d72264ece721e8d0dc95b16a6824b1
[INFO] running `"/workspace/cargo-home/bin/cargo" "+6250d56355d72264ece721e8d0dc95b16a6824b1" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/ian-pacheco/RustLang-SnakeGame
[INFO] finished tweaking git repo https://github.com/ian-pacheco/RustLang-SnakeGame
[INFO] tweaked toml for git repo https://github.com/ian-pacheco/RustLang-SnakeGame written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/ian-pacheco/RustLang-SnakeGame already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+6250d56355d72264ece721e8d0dc95b16a6824b1" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "+6250d56355d72264ece721e8d0dc95b16a6824b1" "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] cb2a77c8392c0ebcb90069304662fb574e585b974e2bfe87cafeccbc10d46b1c
[INFO] running `"docker" "start" "-a" "cb2a77c8392c0ebcb90069304662fb574e585b974e2bfe87cafeccbc10d46b1c"`
[INFO] [stderr]     Checking rusttype v0.8.0
[INFO] [stderr]     Checking rusttype v0.7.9
[INFO] [stderr]     Checking andrew v0.2.1
[INFO] [stderr]     Checking piston2d-graphics v0.35.0
[INFO] [stderr]     Checking smithay-client-toolkit v0.4.6
[INFO] [stderr]     Checking piston2d-opengl_graphics v0.69.0
[INFO] [stderr]     Checking winit v0.19.3
[INFO] [stderr]     Checking glutin v0.21.1
[INFO] [stderr]     Checking pistoncore-glutin_window v0.63.0
[INFO] [stderr]     Checking snake_game v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]    --> src/main.rs:127:29
[INFO] [stderr]     |
[INFO] [stderr] 127 |     snake_parts: LinkedList<(Snake_Piece)>,
[INFO] [stderr]     |                             ^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: type `Snake_Piece` should have an upper camel case name
[INFO] [stderr]    --> src/main.rs:132:12
[INFO] [stderr]     |
[INFO] [stderr] 132 | pub struct Snake_Piece(u32, u32);
[INFO] [stderr]     |            ^^^^^^^^^^^ help: convert the identifier to upper camel case: `SnakePiece`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `arg`
[INFO] [stderr]   --> src/main.rs:83:26
[INFO] [stderr]    |
[INFO] [stderr] 83 |     fn update(&mut self, arg: &UpdateArgs) -> bool {
[INFO] [stderr]    |                          ^^^ help: consider prefixing with an underscore: `_arg`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]    --> src/main.rs:127:29
[INFO] [stderr]     |
[INFO] [stderr] 127 |     snake_parts: LinkedList<(Snake_Piece)>,
[INFO] [stderr]     |                             ^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: type `Snake_Piece` should have an upper camel case name
[INFO] [stderr]    --> src/main.rs:132:12
[INFO] [stderr]     |
[INFO] [stderr] 132 | pub struct Snake_Piece(u32, u32);
[INFO] [stderr]     |            ^^^^^^^^^^^ help: convert the identifier to upper camel case: `SnakePiece`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `arg`
[INFO] [stderr]   --> src/main.rs:83:26
[INFO] [stderr]    |
[INFO] [stderr] 83 |     fn update(&mut self, arg: &UpdateArgs) -> bool {
[INFO] [stderr]    |                          ^^^ help: consider prefixing with an underscore: `_arg`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 18.21s
[INFO] running `"docker" "inspect" "cb2a77c8392c0ebcb90069304662fb574e585b974e2bfe87cafeccbc10d46b1c"`
[INFO] running `"docker" "rm" "-f" "cb2a77c8392c0ebcb90069304662fb574e585b974e2bfe87cafeccbc10d46b1c"`
[INFO] [stdout] cb2a77c8392c0ebcb90069304662fb574e585b974e2bfe87cafeccbc10d46b1c