[INFO] updating cached repository https://github.com/onasauri/snake
[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] eedc7092f4b9830a3afe813eee0bdebafe788cf1
[INFO] checking onasauri/snake against try#ea663bba38739867a4b75ac820991b4f5d093c3b for pr-62262-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fonasauri%2Fsnake" "/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/onasauri/snake on toolchain ea663bba38739867a4b75ac820991b4f5d093c3b
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/onasauri/snake
[INFO] finished tweaking git repo https://github.com/onasauri/snake
[INFO] tweaked toml for git repo https://github.com/onasauri/snake written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/onasauri/snake already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "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" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "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] 596453311c9fd92fabf58fc55f4cae668689eceaaec3c518f74c468ee65f3a10
[INFO] running `"docker" "start" "-a" "596453311c9fd92fabf58fc55f4cae668689eceaaec3c518f74c468ee65f3a10"`
[INFO] [stderr]    Compiling matrixmultiply v0.1.13
[INFO] [stderr]    Compiling sdl2-sys v0.27.2
[INFO] [stderr]     Checking serde v0.9.12
[INFO] [stderr]     Checking either v1.0.3
[INFO] [stderr]    Compiling ndarray v0.8.0
[INFO] [stderr]     Checking num-complex v0.1.36
[INFO] [stderr]     Checking itertools v0.5.9
[INFO] [stderr]     Checking sdl2 v0.29.0
[INFO] [stderr]     Checking serde_json v0.9.9
[INFO] [stderr]     Checking preferences v1.1.0
[INFO] [stderr]     Checking snake v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/engine.rs:37:41
[INFO] [stderr]    |
[INFO] [stderr] 37 | ...                   let mut window = self.renderer.window_mut().unwrap();
[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/engine.rs:37:41
[INFO] [stderr]    |
[INFO] [stderr] 37 | ...                   let mut window = self.renderer.window_mut().unwrap();
[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]     Finished dev [unoptimized + debuginfo] target(s) in 14.37s
[INFO] running `"docker" "inspect" "596453311c9fd92fabf58fc55f4cae668689eceaaec3c518f74c468ee65f3a10"`
[INFO] running `"docker" "rm" "-f" "596453311c9fd92fabf58fc55f4cae668689eceaaec3c518f74c468ee65f3a10"`
[INFO] [stdout] 596453311c9fd92fabf58fc55f4cae668689eceaaec3c518f74c468ee65f3a10