Dec 17 15:47:44.293 INFO checking sebm/checkers against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 17 15:47:44.293 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-3/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a/gh/sebm/checkers:/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 17 15:47:44.781 INFO [stdout] 5abe5f5f32cb372e99a60da1e3c6d06dff97145c887abc7fc2985d7933bd50c5
Dec 17 15:47:44.786 INFO running `"docker" "start" "-a" "5abe5f5f32cb372e99a60da1e3c6d06dff97145c887abc7fc2985d7933bd50c5"`
Dec 17 15:47:46.851 INFO [stderr]     Checking checkers v0.1.0 (/opt/crater/workdir)
Dec 17 15:47:47.064 INFO [stderr] warning: unused import: `initial_board`
Dec 17 15:47:47.064 INFO [stderr]  --> src/main.rs:4:26
Dec 17 15:47:47.064 INFO [stderr]   |
Dec 17 15:47:47.064 INFO [stderr] 4 | use board::{BoardSquare, initial_board, draw_board};
Dec 17 15:47:47.064 INFO [stderr]   |                          ^^^^^^^^^^^^^
Dec 17 15:47:47.064 INFO [stderr]   |
Dec 17 15:47:47.064 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 17 15:47:47.064 INFO [stderr] 
Dec 17 15:47:47.180 INFO [stderr] warning: unused import: `initial_board`
Dec 17 15:47:47.180 INFO [stderr]  --> src/main.rs:4:26
Dec 17 15:47:47.180 INFO [stderr]   |
Dec 17 15:47:47.180 INFO [stderr] 4 | use board::{BoardSquare, initial_board, draw_board};
Dec 17 15:47:47.180 INFO [stderr]   |                          ^^^^^^^^^^^^^
Dec 17 15:47:47.180 INFO [stderr]   |
Dec 17 15:47:47.180 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 17 15:47:47.180 INFO [stderr] 
Dec 17 15:47:47.216 INFO [stderr] warning: function is never used: `initial_board`
Dec 17 15:47:47.216 INFO [stderr]   --> src/board.rs:26:1
Dec 17 15:47:47.216 INFO [stderr]    |
Dec 17 15:47:47.216 INFO [stderr] 26 | pub fn initial_board() -> [[BoardSquare; 8]; 8] {
Dec 17 15:47:47.216 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 15:47:47.216 INFO [stderr]    |
Dec 17 15:47:47.216 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 17 15:47:47.216 INFO [stderr] 
Dec 17 15:47:47.336 INFO [stderr] warning: function is never used: `initial_board`
Dec 17 15:47:47.336 INFO [stderr]   --> src/board.rs:26:1
Dec 17 15:47:47.336 INFO [stderr]    |
Dec 17 15:47:47.336 INFO [stderr] 26 | pub fn initial_board() -> [[BoardSquare; 8]; 8] {
Dec 17 15:47:47.336 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 15:47:47.336 INFO [stderr]    |
Dec 17 15:47:47.336 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 17 15:47:47.336 INFO [stderr] 
Dec 17 15:47:47.362 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.53s
Dec 17 15:47:48.517 INFO running `"docker" "inspect" "5abe5f5f32cb372e99a60da1e3c6d06dff97145c887abc7fc2985d7933bd50c5"`
Dec 17 15:47:48.916 INFO running `"docker" "rm" "-f" "5abe5f5f32cb372e99a60da1e3c6d06dff97145c887abc7fc2985d7933bd50c5"`
Dec 17 15:47:49.284 INFO [stdout] 5abe5f5f32cb372e99a60da1e3c6d06dff97145c887abc7fc2985d7933bd50c5