Dec 05 03:08:37.244 INFO checking Catman155/four-in-a-row against master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc for pr-56481
Dec 05 03:08:37.244 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-5/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-5/pr-56481/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +c8ae2de8363be088604ffa2ccba84ff7ad7250bc-alt check --frozen --all --all-targets" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 05 03:08:37.799 INFO [stdout] 596428e5976d472e2f9254a781443534a6856a0ae1126674662d97d4600ed30b
Dec 05 03:08:37.803 INFO running `"docker" "start" "-a" "596428e5976d472e2f9254a781443534a6856a0ae1126674662d97d4600ed30b"`
Dec 05 03:08:38.653 INFO [stderr] usermod: no changes
Dec 05 03:08:38.686 INFO [stderr]     Checking four_in_a_row v0.1.0 (/source)
Dec 05 03:08:39.239 INFO [stderr] warning: unused import: `BOARD_SIZE`
Dec 05 03:08:39.239 INFO [stderr]  --> src/objects/ai.rs:2:5
Dec 05 03:08:39.239 INFO [stderr]   |
Dec 05 03:08:39.239 INFO [stderr] 2 | use BOARD_SIZE;
Dec 05 03:08:39.239 INFO [stderr]   |     ^^^^^^^^^^
Dec 05 03:08:39.239 INFO [stderr]   |
Dec 05 03:08:39.239 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 05 03:08:39.239 INFO [stderr] 
Dec 05 03:08:39.307 INFO [stderr] warning: unused import: `BOARD_SIZE`
Dec 05 03:08:39.307 INFO [stderr]  --> src/objects/ai.rs:2:5
Dec 05 03:08:39.307 INFO [stderr]   |
Dec 05 03:08:39.307 INFO [stderr] 2 | use BOARD_SIZE;
Dec 05 03:08:39.307 INFO [stderr]   |     ^^^^^^^^^^
Dec 05 03:08:39.307 INFO [stderr]   |
Dec 05 03:08:39.307 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 05 03:08:39.307 INFO [stderr] 
Dec 05 03:08:39.335 INFO [stderr] warning: unused variable: `direction`
Dec 05 03:08:39.335 INFO [stderr]   --> src/objects/ai.rs:19:17
Dec 05 03:08:39.335 INFO [stderr]    |
Dec 05 03:08:39.335 INFO [stderr] 19 |             let direction = self.get_possible_directions(positions);
Dec 05 03:08:39.335 INFO [stderr]    |                 ^^^^^^^^^ help: consider using `_direction` instead
Dec 05 03:08:39.335 INFO [stderr]    |
Dec 05 03:08:39.335 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 05 03:08:39.335 INFO [stderr] 
Dec 05 03:08:39.359 INFO [stderr] warning: variable does not need to be mutable
Dec 05 03:08:39.359 INFO [stderr]   --> src/objects/ai.rs:31:13
Dec 05 03:08:39.359 INFO [stderr]    |
Dec 05 03:08:39.359 INFO [stderr] 31 |         let mut possible = Vec::<[(i64, i64); 4]>::new();
Dec 05 03:08:39.359 INFO [stderr]    |             ----^^^^^^^^
Dec 05 03:08:39.359 INFO [stderr]    |             |
Dec 05 03:08:39.359 INFO [stderr]    |             help: remove this `mut`
Dec 05 03:08:39.359 INFO [stderr]    |
Dec 05 03:08:39.359 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 05 03:08:39.359 INFO [stderr] 
Dec 05 03:08:39.386 INFO [stderr] warning: unused variable: `direction`
Dec 05 03:08:39.386 INFO [stderr]   --> src/objects/ai.rs:19:17
Dec 05 03:08:39.386 INFO [stderr]    |
Dec 05 03:08:39.386 INFO [stderr] 19 |             let direction = self.get_possible_directions(positions);
Dec 05 03:08:39.386 INFO [stderr]    |                 ^^^^^^^^^ help: consider using `_direction` instead
Dec 05 03:08:39.386 INFO [stderr]    |
Dec 05 03:08:39.386 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 05 03:08:39.386 INFO [stderr] 
Dec 05 03:08:39.406 INFO [stderr] warning: variable does not need to be mutable
Dec 05 03:08:39.406 INFO [stderr]   --> src/objects/ai.rs:31:13
Dec 05 03:08:39.406 INFO [stderr]    |
Dec 05 03:08:39.406 INFO [stderr] 31 |         let mut possible = Vec::<[(i64, i64); 4]>::new();
Dec 05 03:08:39.406 INFO [stderr]    |             ----^^^^^^^^
Dec 05 03:08:39.406 INFO [stderr]    |             |
Dec 05 03:08:39.406 INFO [stderr]    |             help: remove this `mut`
Dec 05 03:08:39.406 INFO [stderr]    |
Dec 05 03:08:39.406 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 05 03:08:39.406 INFO [stderr] 
Dec 05 03:08:39.425 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.75s
Dec 05 03:08:39.427 INFO [stderr] su: No module specific data is present
Dec 05 03:08:40.204 INFO running `"docker" "inspect" "596428e5976d472e2f9254a781443534a6856a0ae1126674662d97d4600ed30b"`
Dec 05 03:08:40.431 INFO running `"docker" "rm" "-f" "596428e5976d472e2f9254a781443534a6856a0ae1126674662d97d4600ed30b"`
Dec 05 03:08:40.777 INFO [stdout] 596428e5976d472e2f9254a781443534a6856a0ae1126674662d97d4600ed30b