Dec 04 06:31:52.024 INFO checking yogaxpto/tic-tac-rust against master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc for pr-56481
Dec 04 06:31:52.024 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-0/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/pr-56481/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/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 +c8ae2de8363be088604ffa2ccba84ff7ad7250bc-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 04 06:31:52.518 INFO [stdout] 75a8872779f436700428a1b8bf8429f7ca5c406de82bbd57f770d5fa8e918851
Dec 04 06:31:52.521 INFO running `"docker" "start" "-a" "75a8872779f436700428a1b8bf8429f7ca5c406de82bbd57f770d5fa8e918851"`
Dec 04 06:31:55.426 INFO [stderr] usermod: no changes
Dec 04 06:31:55.551 INFO [stderr]     Checking tic-tac-rust v0.1.0 (/source)
Dec 04 06:31:55.992 INFO [stderr] warning: unused variable: `bot_symbol`
Dec 04 06:31:55.992 INFO [stderr]    --> src/main.rs:202:9
Dec 04 06:31:55.992 INFO [stderr]     |
Dec 04 06:31:55.992 INFO [stderr] 202 |     let bot_symbol: State = State::opponent_symbol(player_symbol);
Dec 04 06:31:55.992 INFO [stderr]     |         ^^^^^^^^^^ help: consider using `_bot_symbol` instead
Dec 04 06:31:55.992 INFO [stderr]     |
Dec 04 06:31:55.992 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Dec 04 06:31:55.992 INFO [stderr] 
Dec 04 06:31:55.992 INFO [stderr] warning: unused variable: `strategy`
Dec 04 06:31:55.992 INFO [stderr]    --> src/main.rs:169:28
Dec 04 06:31:55.992 INFO [stderr]     |
Dec 04 06:31:55.992 INFO [stderr] 169 |     pub fn bot_play(&self, strategy: Strategy) {
Dec 04 06:31:55.992 INFO [stderr]     |                            ^^^^^^^^ help: consider using `_strategy` instead
Dec 04 06:31:55.992 INFO [stderr] 
Dec 04 06:31:56.040 INFO [stderr] warning: method is never used: `child`
Dec 04 06:31:56.040 INFO [stderr]    --> src/main.rs:112:5
Dec 04 06:31:56.040 INFO [stderr]     |
Dec 04 06:31:56.040 INFO [stderr] 112 |     pub fn child(&mut self, symbol: State, row: usize, col: usize, player: State) -> Node {
Dec 04 06:31:56.040 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 06:31:56.040 INFO [stderr]     |
Dec 04 06:31:56.041 INFO [stderr]     = note: #[warn(dead_code)] on by default
Dec 04 06:31:56.041 INFO [stderr] 
Dec 04 06:31:56.050 INFO [stderr] warning: unused variable: `bot_symbol`
Dec 04 06:31:56.050 INFO [stderr]    --> src/main.rs:202:9
Dec 04 06:31:56.050 INFO [stderr]     |
Dec 04 06:31:56.050 INFO [stderr] 202 |     let bot_symbol: State = State::opponent_symbol(player_symbol);
Dec 04 06:31:56.050 INFO [stderr]     |         ^^^^^^^^^^ help: consider using `_bot_symbol` instead
Dec 04 06:31:56.050 INFO [stderr]     |
Dec 04 06:31:56.055 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Dec 04 06:31:56.055 INFO [stderr] 
Dec 04 06:31:56.059 INFO [stderr] warning: unused variable: `strategy`
Dec 04 06:31:56.059 INFO [stderr]    --> src/main.rs:169:28
Dec 04 06:31:56.059 INFO [stderr]     |
Dec 04 06:31:56.059 INFO [stderr] 169 |     pub fn bot_play(&self, strategy: Strategy) {
Dec 04 06:31:56.059 INFO [stderr]     |                            ^^^^^^^^ help: consider using `_strategy` instead
Dec 04 06:31:56.059 INFO [stderr] 
Dec 04 06:31:56.067 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 04 06:31:56.067 INFO [stderr]    --> src/main.rs:182:5
Dec 04 06:31:56.067 INFO [stderr]     |
Dec 04 06:31:56.067 INFO [stderr] 182 |     io.lock().read_line(&mut stdin);
Dec 04 06:31:56.067 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 06:31:56.067 INFO [stderr]     |
Dec 04 06:31:56.067 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 04 06:31:56.067 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 04 06:31:56.067 INFO [stderr] 
Dec 04 06:31:56.118 INFO [stderr] warning: method is never used: `child`
Dec 04 06:31:56.118 INFO [stderr]    --> src/main.rs:112:5
Dec 04 06:31:56.118 INFO [stderr]     |
Dec 04 06:31:56.118 INFO [stderr] 112 |     pub fn child(&mut self, symbol: State, row: usize, col: usize, player: State) -> Node {
Dec 04 06:31:56.118 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 06:31:56.118 INFO [stderr]     |
Dec 04 06:31:56.118 INFO [stderr]     = note: #[warn(dead_code)] on by default
Dec 04 06:31:56.118 INFO [stderr] 
Dec 04 06:31:56.136 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 04 06:31:56.136 INFO [stderr]    --> src/main.rs:182:5
Dec 04 06:31:56.136 INFO [stderr]     |
Dec 04 06:31:56.136 INFO [stderr] 182 |     io.lock().read_line(&mut stdin);
Dec 04 06:31:56.136 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 06:31:56.136 INFO [stderr]     |
Dec 04 06:31:56.136 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 04 06:31:56.136 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 04 06:31:56.136 INFO [stderr] 
Dec 04 06:31:56.171 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.69s
Dec 04 06:31:56.187 INFO [stderr] su: No module specific data is present
Dec 04 06:31:57.971 INFO running `"docker" "inspect" "75a8872779f436700428a1b8bf8429f7ca5c406de82bbd57f770d5fa8e918851"`
Dec 04 06:31:58.321 INFO running `"docker" "rm" "-f" "75a8872779f436700428a1b8bf8429f7ca5c406de82bbd57f770d5fa8e918851"`
Dec 04 06:31:58.667 INFO [stdout] 75a8872779f436700428a1b8bf8429f7ca5c406de82bbd57f770d5fa8e918851