Dec 18 07:01:00.109 INFO checking JudgeGlass/TicTacToe-rs against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 18 07:01:00.109 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-3/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/gh/JudgeGlass/TicTacToe-rs:/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" "+96d1334e567237b1507cd277938e7ae2de75ff51-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 18 07:01:00.590 INFO [stdout] 8c84923de9a61dec763b2f2bdc4ee2a6e4852a4dc868468cab15588958a69429
Dec 18 07:01:00.592 INFO running `"docker" "start" "-a" "8c84923de9a61dec763b2f2bdc4ee2a6e4852a4dc868468cab15588958a69429"`
Dec 18 07:01:01.850 INFO [stderr]     Checking tic_tac_toe-rs v0.1.0 (/opt/crater/workdir)
Dec 18 07:01:02.301 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 07:01:02.301 INFO [stderr]   --> src/main.rs:32:13
Dec 18 07:01:02.301 INFO [stderr]    |
Dec 18 07:01:02.301 INFO [stderr] 32 |             io::stdout().flush();
Dec 18 07:01:02.301 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^
Dec 18 07:01:02.301 INFO [stderr]    |
Dec 18 07:01:02.301 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 18 07:01:02.302 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 07:01:02.302 INFO [stderr] 
Dec 18 07:01:02.303 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 07:01:02.303 INFO [stderr]   --> src/main.rs:71:13
Dec 18 07:01:02.303 INFO [stderr]    |
Dec 18 07:01:02.303 INFO [stderr] 71 |             io::stdout().flush();
Dec 18 07:01:02.304 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^
Dec 18 07:01:02.304 INFO [stderr]    |
Dec 18 07:01:02.304 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 07:01:02.305 INFO [stderr] 
Dec 18 07:01:02.398 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 07:01:02.398 INFO [stderr]   --> src/main.rs:32:13
Dec 18 07:01:02.398 INFO [stderr]    |
Dec 18 07:01:02.398 INFO [stderr] 32 |             io::stdout().flush();
Dec 18 07:01:02.398 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^
Dec 18 07:01:02.398 INFO [stderr]    |
Dec 18 07:01:02.398 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 18 07:01:02.398 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 07:01:02.398 INFO [stderr] 
Dec 18 07:01:02.398 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 07:01:02.398 INFO [stderr]   --> src/main.rs:71:13
Dec 18 07:01:02.398 INFO [stderr]    |
Dec 18 07:01:02.398 INFO [stderr] 71 |             io::stdout().flush();
Dec 18 07:01:02.398 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^
Dec 18 07:01:02.398 INFO [stderr]    |
Dec 18 07:01:02.398 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 07:01:02.398 INFO [stderr] 
Dec 18 07:01:02.418 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.58s
Dec 18 07:01:02.806 INFO running `"docker" "inspect" "8c84923de9a61dec763b2f2bdc4ee2a6e4852a4dc868468cab15588958a69429"`
Dec 18 07:01:02.978 INFO running `"docker" "rm" "-f" "8c84923de9a61dec763b2f2bdc4ee2a6e4852a4dc868468cab15588958a69429"`
Dec 18 07:01:03.143 INFO [stdout] 8c84923de9a61dec763b2f2bdc4ee2a6e4852a4dc868468cab15588958a69429