Dec 19 19:31:37.853 INFO checking bruce/rust-mazes against try#e70472fc501b855c9080f3772432c10fe20b8866 for pr-56955
Dec 19 19:31:37.853 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-5/try#e70472fc501b855c9080f3772432c10fe20b8866:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/try#e70472fc501b855c9080f3772432c10fe20b8866/gh/bruce/rust-mazes:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/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" "+e70472fc501b855c9080f3772432c10fe20b8866-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 19:31:38.358 INFO [stdout] f47ab4f5fb2940f24330e0a6d02b18d5f5956a99a883fe7438c88558e2d25ff9
Dec 19 19:31:38.360 INFO running `"docker" "start" "-a" "f47ab4f5fb2940f24330e0a6d02b18d5f5956a99a883fe7438c88558e2d25ff9"`
Dec 19 19:31:39.824 INFO [stderr]     Checking mazes v0.1.0 (/opt/crater/workdir)
Dec 19 19:31:40.144 INFO [stderr] warning: unnecessary parentheses around `for` head expression
Dec 19 19:31:40.144 INFO [stderr]   --> src/grid.rs:22:20
Dec 19 19:31:40.144 INFO [stderr]    |
Dec 19 19:31:40.144 INFO [stderr] 22 |         for col in (1..cols) {
Dec 19 19:31:40.144 INFO [stderr]    |                    ^^^^^^^^^ help: remove these parentheses
Dec 19 19:31:40.144 INFO [stderr]    |
Dec 19 19:31:40.144 INFO [stderr]    = note: #[warn(unused_parens)] on by default
Dec 19 19:31:40.144 INFO [stderr] 
Dec 19 19:31:40.144 INFO [stderr] warning: unnecessary parentheses around `for` head expression
Dec 19 19:31:40.144 INFO [stderr]   --> src/grid.rs:24:24
Dec 19 19:31:40.144 INFO [stderr]    |
Dec 19 19:31:40.144 INFO [stderr] 24 |             for row in (1..rows) {
Dec 19 19:31:40.144 INFO [stderr]    |                        ^^^^^^^^^ help: remove these parentheses
Dec 19 19:31:40.144 INFO [stderr] 
Dec 19 19:31:40.164 INFO [stderr] warning: unnecessary parentheses around `for` head expression
Dec 19 19:31:40.164 INFO [stderr]   --> src/grid.rs:22:20
Dec 19 19:31:40.164 INFO [stderr]    |
Dec 19 19:31:40.164 INFO [stderr] 22 |         for col in (1..cols) {
Dec 19 19:31:40.164 INFO [stderr]    |                    ^^^^^^^^^ help: remove these parentheses
Dec 19 19:31:40.164 INFO [stderr]    |
Dec 19 19:31:40.164 INFO [stderr]    = note: #[warn(unused_parens)] on by default
Dec 19 19:31:40.164 INFO [stderr] 
Dec 19 19:31:40.164 INFO [stderr] warning: unnecessary parentheses around `for` head expression
Dec 19 19:31:40.164 INFO [stderr]   --> src/grid.rs:24:24
Dec 19 19:31:40.164 INFO [stderr]    |
Dec 19 19:31:40.164 INFO [stderr] 24 |             for row in (1..rows) {
Dec 19 19:31:40.164 INFO [stderr]    |                        ^^^^^^^^^ help: remove these parentheses
Dec 19 19:31:40.164 INFO [stderr] 
Dec 19 19:31:40.601 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.79s
Dec 19 19:31:41.300 INFO running `"docker" "inspect" "f47ab4f5fb2940f24330e0a6d02b18d5f5956a99a883fe7438c88558e2d25ff9"`
Dec 19 19:31:41.554 INFO running `"docker" "rm" "-f" "f47ab4f5fb2940f24330e0a6d02b18d5f5956a99a883fe7438c88558e2d25ff9"`
Dec 19 19:31:41.828 INFO [stdout] f47ab4f5fb2940f24330e0a6d02b18d5f5956a99a883fe7438c88558e2d25ff9