Dec 11 05:35:12.388 INFO checking yogaxpto/tic-tac-rust against master#3a75e80557a103497cffbcab395a2f37061a77ea for pr-56677
Dec 11 05:35:12.388 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-3/master#3a75e80557a103497cffbcab395a2f37061a77ea:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/pr-56677/master#3a75e80557a103497cffbcab395a2f37061a77ea:/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 +3a75e80557a103497cffbcab395a2f37061a77ea-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 11 05:35:12.829 INFO [stdout] 8afee8e2650ddbb7e8dd6f1021f94ef6ecdb5cbfc2b40715b585486451c3b1fa
Dec 11 05:35:12.836 INFO running `"docker" "start" "-a" "8afee8e2650ddbb7e8dd6f1021f94ef6ecdb5cbfc2b40715b585486451c3b1fa"`
Dec 11 05:35:14.891 INFO [stderr] usermod: no changes
Dec 11 05:35:14.961 INFO [stderr]     Checking tic-tac-rust v0.1.0 (/source)
Dec 11 05:35:15.378 INFO [stderr] warning: unused variable: `bot_symbol`
Dec 11 05:35:15.378 INFO [stderr]    --> src/main.rs:202:9
Dec 11 05:35:15.378 INFO [stderr]     |
Dec 11 05:35:15.378 INFO [stderr] 202 |     let bot_symbol: State = State::opponent_symbol(player_symbol);
Dec 11 05:35:15.378 INFO [stderr]     |         ^^^^^^^^^^ help: consider using `_bot_symbol` instead
Dec 11 05:35:15.378 INFO [stderr]     |
Dec 11 05:35:15.378 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Dec 11 05:35:15.378 INFO [stderr] 
Dec 11 05:35:15.384 INFO [stderr] warning: unused variable: `strategy`
Dec 11 05:35:15.384 INFO [stderr]    --> src/main.rs:169:28
Dec 11 05:35:15.384 INFO [stderr]     |
Dec 11 05:35:15.384 INFO [stderr] 169 |     pub fn bot_play(&self, strategy: Strategy) {
Dec 11 05:35:15.385 INFO [stderr]     |                            ^^^^^^^^ help: consider using `_strategy` instead
Dec 11 05:35:15.385 INFO [stderr] 
Dec 11 05:35:15.432 INFO [stderr] warning: method is never used: `child`
Dec 11 05:35:15.432 INFO [stderr]    --> src/main.rs:112:5
Dec 11 05:35:15.432 INFO [stderr]     |
Dec 11 05:35:15.432 INFO [stderr] 112 |     pub fn child(&mut self, symbol: State, row: usize, col: usize, player: State) -> Node {
Dec 11 05:35:15.432 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 05:35:15.432 INFO [stderr]     |
Dec 11 05:35:15.432 INFO [stderr]     = note: #[warn(dead_code)] on by default
Dec 11 05:35:15.432 INFO [stderr] 
Dec 11 05:35:15.448 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 05:35:15.448 INFO [stderr]    --> src/main.rs:182:5
Dec 11 05:35:15.448 INFO [stderr]     |
Dec 11 05:35:15.448 INFO [stderr] 182 |     io.lock().read_line(&mut stdin);
Dec 11 05:35:15.448 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 05:35:15.448 INFO [stderr]     |
Dec 11 05:35:15.448 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 11 05:35:15.448 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 05:35:15.448 INFO [stderr] 
Dec 11 05:35:15.488 INFO [stderr] warning: unused variable: `bot_symbol`
Dec 11 05:35:15.488 INFO [stderr]    --> src/main.rs:202:9
Dec 11 05:35:15.488 INFO [stderr]     |
Dec 11 05:35:15.488 INFO [stderr] 202 |     let bot_symbol: State = State::opponent_symbol(player_symbol);
Dec 11 05:35:15.488 INFO [stderr]     |         ^^^^^^^^^^ help: consider using `_bot_symbol` instead
Dec 11 05:35:15.488 INFO [stderr]     |
Dec 11 05:35:15.488 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Dec 11 05:35:15.488 INFO [stderr] 
Dec 11 05:35:15.488 INFO [stderr] warning: unused variable: `strategy`
Dec 11 05:35:15.488 INFO [stderr]    --> src/main.rs:169:28
Dec 11 05:35:15.488 INFO [stderr]     |
Dec 11 05:35:15.488 INFO [stderr] 169 |     pub fn bot_play(&self, strategy: Strategy) {
Dec 11 05:35:15.488 INFO [stderr]     |                            ^^^^^^^^ help: consider using `_strategy` instead
Dec 11 05:35:15.488 INFO [stderr] 
Dec 11 05:35:15.536 INFO [stderr] warning: method is never used: `child`
Dec 11 05:35:15.536 INFO [stderr]    --> src/main.rs:112:5
Dec 11 05:35:15.536 INFO [stderr]     |
Dec 11 05:35:15.536 INFO [stderr] 112 |     pub fn child(&mut self, symbol: State, row: usize, col: usize, player: State) -> Node {
Dec 11 05:35:15.536 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 05:35:15.536 INFO [stderr]     |
Dec 11 05:35:15.536 INFO [stderr]     = note: #[warn(dead_code)] on by default
Dec 11 05:35:15.536 INFO [stderr] 
Dec 11 05:35:15.544 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 05:35:15.544 INFO [stderr]    --> src/main.rs:182:5
Dec 11 05:35:15.544 INFO [stderr]     |
Dec 11 05:35:15.544 INFO [stderr] 182 |     io.lock().read_line(&mut stdin);
Dec 11 05:35:15.544 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 05:35:15.544 INFO [stderr]     |
Dec 11 05:35:15.544 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 11 05:35:15.544 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 05:35:15.544 INFO [stderr] 
Dec 11 05:35:15.584 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.65s
Dec 11 05:35:15.584 INFO [stderr] su: No module specific data is present
Dec 11 05:35:17.108 INFO running `"docker" "inspect" "8afee8e2650ddbb7e8dd6f1021f94ef6ecdb5cbfc2b40715b585486451c3b1fa"`
Dec 11 05:35:17.484 INFO running `"docker" "rm" "-f" "8afee8e2650ddbb7e8dd6f1021f94ef6ecdb5cbfc2b40715b585486451c3b1fa"`
Dec 11 05:35:17.884 INFO [stdout] 8afee8e2650ddbb7e8dd6f1021f94ef6ecdb5cbfc2b40715b585486451c3b1fa