[INFO] cloning repository https://github.com/tuukkao/minesweeper
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tuukkao/minesweeper" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftuukkao%2Fminesweeper"`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftuukkao%2Fminesweeper'...
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 6bdc89687c07f7b13f6e4c08003a8eedfc2e2c12
[INFO] checking tuukkao/minesweeper against master#3dbade652ed8ebac70f903e01f51cd92c4e4302c for pr-69741
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftuukkao%2Fminesweeper" "/workspace/builds/worker-5/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/tuukkao/minesweeper on toolchain 3dbade652ed8ebac70f903e01f51cd92c4e4302c
[INFO] running `"/workspace/cargo-home/bin/cargo" "+3dbade652ed8ebac70f903e01f51cd92c4e4302c" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/tuukkao/minesweeper
[INFO] finished tweaking git repo https://github.com/tuukkao/minesweeper
[INFO] tweaked toml for git repo https://github.com/tuukkao/minesweeper written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/tuukkao/minesweeper already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+3dbade652ed8ebac70f903e01f51cd92c4e4302c" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "+3dbade652ed8ebac70f903e01f51cd92c4e4302c" "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] c214d9548ae77e1bfc8f269fde1617a2355d04a2574f02ae238bf0f55c342cf2
[INFO] running `"docker" "start" "-a" "c214d9548ae77e1bfc8f269fde1617a2355d04a2574f02ae238bf0f55c342cf2"`
[INFO] [stderr]     Checking minesweeper v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]    --> src/game.rs:130:5
[INFO] [stderr]     |
[INFO] [stderr] 130 | /     ((x == 0 || x == world.width - 1)
[INFO] [stderr] 131 | |         && (y == 0 || y == world.height - 1))
[INFO] [stderr]     | |_____________________________________________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 130 |     (x == 0 || x == world.width - 1)
[INFO] [stderr] 131 |         && (y == 0 || y == world.height - 1)
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]    --> src/game.rs:130:5
[INFO] [stderr]     |
[INFO] [stderr] 130 | /     ((x == 0 || x == world.width - 1)
[INFO] [stderr] 131 | |         && (y == 0 || y == world.height - 1))
[INFO] [stderr]     | |_____________________________________________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 130 |     (x == 0 || x == world.width - 1)
[INFO] [stderr] 131 |         && (y == 0 || y == world.height - 1)
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.42s
[INFO] running `"docker" "inspect" "c214d9548ae77e1bfc8f269fde1617a2355d04a2574f02ae238bf0f55c342cf2"`
[INFO] running `"docker" "rm" "-f" "c214d9548ae77e1bfc8f269fde1617a2355d04a2574f02ae238bf0f55c342cf2"`
[INFO] [stdout] c214d9548ae77e1bfc8f269fde1617a2355d04a2574f02ae238bf0f55c342cf2