Dec 19 09:08:40.206 INFO checking sebm/checkers against try#e70472fc501b855c9080f3772432c10fe20b8866 for pr-56955
Dec 19 09:08:40.206 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-2/try#e70472fc501b855c9080f3772432c10fe20b8866:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/try#e70472fc501b855c9080f3772432c10fe20b8866/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" "+e70472fc501b855c9080f3772432c10fe20b8866-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 09:08:40.686 INFO [stdout] 8a499545a071875fd0fac605622b547632f4f1b8aaae15b2db4c0c9f0ada5142
Dec 19 09:08:40.690 INFO running `"docker" "start" "-a" "8a499545a071875fd0fac605622b547632f4f1b8aaae15b2db4c0c9f0ada5142"`
Dec 19 09:08:42.228 INFO [stderr]     Checking checkers v0.1.0 (/opt/crater/workdir)
Dec 19 09:08:42.492 INFO [stderr] warning: unused import: `initial_board`
Dec 19 09:08:42.493 INFO [stderr]  --> src/main.rs:4:26
Dec 19 09:08:42.493 INFO [stderr]   |
Dec 19 09:08:42.493 INFO [stderr] 4 | use board::{BoardSquare, initial_board, draw_board};
Dec 19 09:08:42.494 INFO [stderr]   |                          ^^^^^^^^^^^^^
Dec 19 09:08:42.500 INFO [stderr]   |
Dec 19 09:08:42.500 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 19 09:08:42.500 INFO [stderr] 
Dec 19 09:08:42.520 INFO [stderr] warning: unused import: `initial_board`
Dec 19 09:08:42.521 INFO [stderr]  --> src/main.rs:4:26
Dec 19 09:08:42.521 INFO [stderr]   |
Dec 19 09:08:42.521 INFO [stderr] 4 | use board::{BoardSquare, initial_board, draw_board};
Dec 19 09:08:42.521 INFO [stderr]   |                          ^^^^^^^^^^^^^
Dec 19 09:08:42.522 INFO [stderr]   |
Dec 19 09:08:42.522 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 19 09:08:42.528 INFO [stderr] 
Dec 19 09:08:42.624 INFO [stderr] warning: function is never used: `initial_board`
Dec 19 09:08:42.624 INFO [stderr]   --> src/board.rs:26:1
Dec 19 09:08:42.624 INFO [stderr]    |
Dec 19 09:08:42.624 INFO [stderr] 26 | pub fn initial_board() -> [[BoardSquare; 8]; 8] {
Dec 19 09:08:42.624 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 09:08:42.624 INFO [stderr]    |
Dec 19 09:08:42.624 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 19 09:08:42.624 INFO [stderr] 
Dec 19 09:08:42.693 INFO [stderr] warning: function is never used: `initial_board`
Dec 19 09:08:42.693 INFO [stderr]   --> src/board.rs:26:1
Dec 19 09:08:42.693 INFO [stderr]    |
Dec 19 09:08:42.693 INFO [stderr] 26 | pub fn initial_board() -> [[BoardSquare; 8]; 8] {
Dec 19 09:08:42.693 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 09:08:42.693 INFO [stderr]    |
Dec 19 09:08:42.693 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 19 09:08:42.693 INFO [stderr] 
Dec 19 09:08:42.748 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.53s
Dec 19 09:08:43.414 INFO running `"docker" "inspect" "8a499545a071875fd0fac605622b547632f4f1b8aaae15b2db4c0c9f0ada5142"`
Dec 19 09:08:43.710 INFO running `"docker" "rm" "-f" "8a499545a071875fd0fac605622b547632f4f1b8aaae15b2db4c0c9f0ada5142"`
Dec 19 09:08:43.976 INFO [stdout] 8a499545a071875fd0fac605622b547632f4f1b8aaae15b2db4c0c9f0ada5142