Dec 18 08:12:23.204 INFO checking Catman155/four-in-a-row against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 18 08:12:23.204 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-7/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a/gh/Catman155/four-in-a-row:/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" "+0b8c5828f68d7b2840b81fa51239346dc97fef5a-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 18 08:12:23.770 INFO [stdout] d16efb4fa03639fce944433d4cc3964f2648672eea600bb005c8f02ffd6f6689
Dec 18 08:12:23.776 INFO running `"docker" "start" "-a" "d16efb4fa03639fce944433d4cc3964f2648672eea600bb005c8f02ffd6f6689"`
Dec 18 08:12:25.356 INFO [stderr]     Checking four_in_a_row v0.1.0 (/opt/crater/workdir)
Dec 18 08:12:25.728 INFO [stderr] warning: unused import: `BOARD_SIZE`
Dec 18 08:12:25.728 INFO [stderr]  --> src/objects/ai.rs:2:5
Dec 18 08:12:25.728 INFO [stderr]   |
Dec 18 08:12:25.728 INFO [stderr] 2 | use BOARD_SIZE;
Dec 18 08:12:25.728 INFO [stderr]   |     ^^^^^^^^^^
Dec 18 08:12:25.728 INFO [stderr]   |
Dec 18 08:12:25.728 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 18 08:12:25.728 INFO [stderr] 
Dec 18 08:12:25.817 INFO [stderr] warning: unused variable: `direction`
Dec 18 08:12:25.817 INFO [stderr]   --> src/objects/ai.rs:19:17
Dec 18 08:12:25.818 INFO [stderr]    |
Dec 18 08:12:25.818 INFO [stderr] 19 |             let direction = self.get_possible_directions(positions);
Dec 18 08:12:25.818 INFO [stderr]    |                 ^^^^^^^^^ help: consider using `_direction` instead
Dec 18 08:12:25.824 INFO [stderr]    |
Dec 18 08:12:25.824 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 18 08:12:25.824 INFO [stderr] 
Dec 18 08:12:25.836 INFO [stderr] warning: variable does not need to be mutable
Dec 18 08:12:25.836 INFO [stderr]   --> src/objects/ai.rs:31:13
Dec 18 08:12:25.837 INFO [stderr]    |
Dec 18 08:12:25.837 INFO [stderr] 31 |         let mut possible = Vec::<[(i64, i64); 4]>::new();
Dec 18 08:12:25.837 INFO [stderr]    |             ----^^^^^^^^
Dec 18 08:12:25.837 INFO [stderr]    |             |
Dec 18 08:12:25.837 INFO [stderr]    |             help: remove this `mut`
Dec 18 08:12:25.840 INFO [stderr]    |
Dec 18 08:12:25.841 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 18 08:12:25.841 INFO [stderr] 
Dec 18 08:12:25.899 INFO [stderr] warning: unused import: `BOARD_SIZE`
Dec 18 08:12:25.899 INFO [stderr]  --> src/objects/ai.rs:2:5
Dec 18 08:12:25.900 INFO [stderr]   |
Dec 18 08:12:25.900 INFO [stderr] 2 | use BOARD_SIZE;
Dec 18 08:12:25.900 INFO [stderr]   |     ^^^^^^^^^^
Dec 18 08:12:25.900 INFO [stderr]   |
Dec 18 08:12:25.900 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 18 08:12:25.900 INFO [stderr] 
Dec 18 08:12:26.024 INFO [stderr] warning: unused variable: `direction`
Dec 18 08:12:26.024 INFO [stderr]   --> src/objects/ai.rs:19:17
Dec 18 08:12:26.024 INFO [stderr]    |
Dec 18 08:12:26.024 INFO [stderr] 19 |             let direction = self.get_possible_directions(positions);
Dec 18 08:12:26.024 INFO [stderr]    |                 ^^^^^^^^^ help: consider using `_direction` instead
Dec 18 08:12:26.024 INFO [stderr]    |
Dec 18 08:12:26.024 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 18 08:12:26.024 INFO [stderr] 
Dec 18 08:12:26.048 INFO [stderr] warning: variable does not need to be mutable
Dec 18 08:12:26.048 INFO [stderr]   --> src/objects/ai.rs:31:13
Dec 18 08:12:26.048 INFO [stderr]    |
Dec 18 08:12:26.048 INFO [stderr] 31 |         let mut possible = Vec::<[(i64, i64); 4]>::new();
Dec 18 08:12:26.048 INFO [stderr]    |             ----^^^^^^^^
Dec 18 08:12:26.048 INFO [stderr]    |             |
Dec 18 08:12:26.048 INFO [stderr]    |             help: remove this `mut`
Dec 18 08:12:26.048 INFO [stderr]    |
Dec 18 08:12:26.048 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 18 08:12:26.048 INFO [stderr] 
Dec 18 08:12:26.117 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.80s
Dec 18 08:12:26.684 INFO running `"docker" "inspect" "d16efb4fa03639fce944433d4cc3964f2648672eea600bb005c8f02ffd6f6689"`
Dec 18 08:12:26.890 INFO running `"docker" "rm" "-f" "d16efb4fa03639fce944433d4cc3964f2648672eea600bb005c8f02ffd6f6689"`
Dec 18 08:12:27.028 INFO [stdout] d16efb4fa03639fce944433d4cc3964f2648672eea600bb005c8f02ffd6f6689