Dec 19 04:59:55.989 INFO checking yogaxpto/tic-tac-rust against try#e70472fc501b855c9080f3772432c10fe20b8866 for pr-56955 Dec 19 04:59:55.989 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-3/try#e70472fc501b855c9080f3772432c10fe20b8866:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/try#e70472fc501b855c9080f3772432c10fe20b8866/gh/yogaxpto/tic-tac-rust:/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 04:59:56.523 INFO [stdout] bb13eaf0aee738184e887385662573b75239840ef080100a00a3c87718088164 Dec 19 04:59:56.526 INFO running `"docker" "start" "-a" "bb13eaf0aee738184e887385662573b75239840ef080100a00a3c87718088164"` Dec 19 04:59:59.484 INFO [stderr] Checking tic-tac-rust v0.1.0 (/opt/crater/workdir) Dec 19 04:59:59.788 INFO [stderr] warning: unused variable: `bot_symbol` Dec 19 04:59:59.788 INFO [stderr] --> src/main.rs:202:9 Dec 19 04:59:59.788 INFO [stderr] | Dec 19 04:59:59.788 INFO [stderr] 202 | let bot_symbol: State = State::opponent_symbol(player_symbol); Dec 19 04:59:59.788 INFO [stderr] | ^^^^^^^^^^ help: consider using `_bot_symbol` instead Dec 19 04:59:59.788 INFO [stderr] | Dec 19 04:59:59.788 INFO [stderr] = note: #[warn(unused_variables)] on by default Dec 19 04:59:59.788 INFO [stderr] Dec 19 04:59:59.788 INFO [stderr] warning: unused variable: `strategy` Dec 19 04:59:59.788 INFO [stderr] --> src/main.rs:169:28 Dec 19 04:59:59.788 INFO [stderr] | Dec 19 04:59:59.788 INFO [stderr] 169 | pub fn bot_play(&self, strategy: Strategy) { Dec 19 04:59:59.788 INFO [stderr] | ^^^^^^^^ help: consider using `_strategy` instead Dec 19 04:59:59.788 INFO [stderr] Dec 19 04:59:59.816 INFO [stderr] warning: method is never used: `child` Dec 19 04:59:59.816 INFO [stderr] --> src/main.rs:112:5 Dec 19 04:59:59.816 INFO [stderr] | Dec 19 04:59:59.816 INFO [stderr] 112 | pub fn child(&mut self, symbol: State, row: usize, col: usize, player: State) -> Node { Dec 19 04:59:59.816 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Dec 19 04:59:59.816 INFO [stderr] | Dec 19 04:59:59.816 INFO [stderr] = note: #[warn(dead_code)] on by default Dec 19 04:59:59.816 INFO [stderr] Dec 19 04:59:59.828 INFO [stderr] warning: unused `std::result::Result` that must be used Dec 19 04:59:59.828 INFO [stderr] --> src/main.rs:182:5 Dec 19 04:59:59.828 INFO [stderr] | Dec 19 04:59:59.828 INFO [stderr] 182 | io.lock().read_line(&mut stdin); Dec 19 04:59:59.828 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Dec 19 04:59:59.828 INFO [stderr] | Dec 19 04:59:59.828 INFO [stderr] = note: #[warn(unused_must_use)] on by default Dec 19 04:59:59.828 INFO [stderr] = note: this `Result` may be an `Err` variant, which should be handled Dec 19 04:59:59.828 INFO [stderr] Dec 19 04:59:59.880 INFO [stderr] warning: unused variable: `bot_symbol` Dec 19 04:59:59.880 INFO [stderr] --> src/main.rs:202:9 Dec 19 04:59:59.880 INFO [stderr] | Dec 19 04:59:59.880 INFO [stderr] 202 | let bot_symbol: State = State::opponent_symbol(player_symbol); Dec 19 04:59:59.880 INFO [stderr] | ^^^^^^^^^^ help: consider using `_bot_symbol` instead Dec 19 04:59:59.880 INFO [stderr] | Dec 19 04:59:59.880 INFO [stderr] = note: #[warn(unused_variables)] on by default Dec 19 04:59:59.880 INFO [stderr] Dec 19 04:59:59.880 INFO [stderr] warning: unused variable: `strategy` Dec 19 04:59:59.880 INFO [stderr] --> src/main.rs:169:28 Dec 19 04:59:59.880 INFO [stderr] | Dec 19 04:59:59.880 INFO [stderr] 169 | pub fn bot_play(&self, strategy: Strategy) { Dec 19 04:59:59.880 INFO [stderr] | ^^^^^^^^ help: consider using `_strategy` instead Dec 19 04:59:59.880 INFO [stderr] Dec 19 04:59:59.904 INFO [stderr] warning: method is never used: `child` Dec 19 04:59:59.904 INFO [stderr] --> src/main.rs:112:5 Dec 19 04:59:59.904 INFO [stderr] | Dec 19 04:59:59.904 INFO [stderr] 112 | pub fn child(&mut self, symbol: State, row: usize, col: usize, player: State) -> Node { Dec 19 04:59:59.904 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Dec 19 04:59:59.904 INFO [stderr] | Dec 19 04:59:59.904 INFO [stderr] = note: #[warn(dead_code)] on by default Dec 19 04:59:59.904 INFO [stderr] Dec 19 04:59:59.916 INFO [stderr] warning: unused `std::result::Result` that must be used Dec 19 04:59:59.916 INFO [stderr] --> src/main.rs:182:5 Dec 19 04:59:59.916 INFO [stderr] | Dec 19 04:59:59.916 INFO [stderr] 182 | io.lock().read_line(&mut stdin); Dec 19 04:59:59.916 INFO [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Dec 19 04:59:59.916 INFO [stderr] | Dec 19 04:59:59.916 INFO [stderr] = note: #[warn(unused_must_use)] on by default Dec 19 04:59:59.916 INFO [stderr] = note: this `Result` may be an `Err` variant, which should be handled Dec 19 04:59:59.916 INFO [stderr] Dec 19 04:59:59.931 INFO [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.47s Dec 19 05:00:00.880 INFO running `"docker" "inspect" "bb13eaf0aee738184e887385662573b75239840ef080100a00a3c87718088164"` Dec 19 05:00:01.210 INFO running `"docker" "rm" "-f" "bb13eaf0aee738184e887385662573b75239840ef080100a00a3c87718088164"` Dec 19 05:00:01.664 INFO [stdout] bb13eaf0aee738184e887385662573b75239840ef080100a00a3c87718088164