Dec 19 08:12:52.317 INFO checking starrtnow/mcts-connect-four against master#d99a320cba42f661aebfa1293b7b2ec3603dda75 for pr-56955
Dec 19 08:12:52.317 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-2/master#d99a320cba42f661aebfa1293b7b2ec3603dda75:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/gh/starrtnow/mcts-connect-four:/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" "+d99a320cba42f661aebfa1293b7b2ec3603dda75-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 08:12:52.712 INFO [stdout] 429ed2ea80f8618f08ef5f5ed676c25a01b9bcf6cd299f43ca02d976c53aa258
Dec 19 08:12:52.720 INFO running `"docker" "start" "-a" "429ed2ea80f8618f08ef5f5ed676c25a01b9bcf6cd299f43ca02d976c53aa258"`
Dec 19 08:12:53.478 INFO [stderr]     Checking connect_three v0.1.0 (/opt/crater/workdir)
Dec 19 08:12:53.612 INFO [stderr] warning: unnecessary parentheses around `if` condition
Dec 19 08:12:53.612 INFO [stderr]   --> src/game_state.rs:53:12
Dec 19 08:12:53.612 INFO [stderr]    |
Dec 19 08:12:53.612 INFO [stderr] 53 |         if (column[i] == Color::Empty){
Dec 19 08:12:53.612 INFO [stderr]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
Dec 19 08:12:53.612 INFO [stderr]    |
Dec 19 08:12:53.612 INFO [stderr]    = note: #[warn(unused_parens)] on by default
Dec 19 08:12:53.612 INFO [stderr] 
Dec 19 08:12:53.612 INFO [stderr] warning: unused import: `super::*`
Dec 19 08:12:53.612 INFO [stderr]    --> src/game_state.rs:190:9
Dec 19 08:12:53.612 INFO [stderr]     |
Dec 19 08:12:53.612 INFO [stderr] 190 |     use super::*; 
Dec 19 08:12:53.612 INFO [stderr]     |         ^^^^^^^^
Dec 19 08:12:53.612 INFO [stderr]     |
Dec 19 08:12:53.612 INFO [stderr]     = note: #[warn(unused_imports)] on by default
Dec 19 08:12:53.612 INFO [stderr] 
Dec 19 08:12:53.612 INFO [stderr] warning: unnecessary parentheses around `if` condition
Dec 19 08:12:53.612 INFO [stderr]    --> src/monte_carlo.rs:243:19
Dec 19 08:12:53.612 INFO [stderr]     |
Dec 19 08:12:53.612 INFO [stderr] 243 |                 if(uct > best_uct){
Dec 19 08:12:53.612 INFO [stderr]     |                   ^^^^^^^^^^^^^^^^ help: remove these parentheses
Dec 19 08:12:53.612 INFO [stderr] 
Dec 19 08:12:53.680 INFO [stderr] warning: unnecessary parentheses around `if` condition
Dec 19 08:12:53.680 INFO [stderr]   --> src/game_state.rs:53:12
Dec 19 08:12:53.680 INFO [stderr]    |
Dec 19 08:12:53.680 INFO [stderr] 53 |         if (column[i] == Color::Empty){
Dec 19 08:12:53.680 INFO [stderr]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
Dec 19 08:12:53.680 INFO [stderr]    |
Dec 19 08:12:53.680 INFO [stderr]    = note: #[warn(unused_parens)] on by default
Dec 19 08:12:53.680 INFO [stderr] 
Dec 19 08:12:53.680 INFO [stderr] warning: unnecessary parentheses around `if` condition
Dec 19 08:12:53.680 INFO [stderr]    --> src/monte_carlo.rs:243:19
Dec 19 08:12:53.680 INFO [stderr]     |
Dec 19 08:12:53.680 INFO [stderr] 243 |                 if(uct > best_uct){
Dec 19 08:12:53.680 INFO [stderr]     |                   ^^^^^^^^^^^^^^^^ help: remove these parentheses
Dec 19 08:12:53.680 INFO [stderr] 
Dec 19 08:12:53.812 INFO [stderr] warning: unused variable: `item`
Dec 19 08:12:53.812 INFO [stderr]   --> src/game_state.rs:51:14
Dec 19 08:12:53.812 INFO [stderr]    |
Dec 19 08:12:53.812 INFO [stderr] 51 | fn push_back(item : Color, column : &mut [Color; 6]) -> usize{
Dec 19 08:12:53.812 INFO [stderr]    |              ^^^^ help: consider using `_item` instead
Dec 19 08:12:53.812 INFO [stderr]    |
Dec 19 08:12:53.812 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 19 08:12:53.812 INFO [stderr] 
Dec 19 08:12:53.812 INFO [stderr] warning: unused variable: `player`
Dec 19 08:12:53.812 INFO [stderr]   --> src/monte_carlo.rs:66:54
Dec 19 08:12:53.812 INFO [stderr]    |
Dec 19 08:12:53.812 INFO [stderr] 66 | pub fn run_simulation(state : game_state::GameState, player : game_state::Color) -> game_state::End{ 
Dec 19 08:12:53.812 INFO [stderr]    |                                                      ^^^^^^ help: consider using `_player` instead
Dec 19 08:12:53.812 INFO [stderr] 
Dec 19 08:12:53.857 INFO [stderr] warning: unused variable: `item`
Dec 19 08:12:53.857 INFO [stderr]   --> src/game_state.rs:51:14
Dec 19 08:12:53.857 INFO [stderr]    |
Dec 19 08:12:53.857 INFO [stderr] 51 | fn push_back(item : Color, column : &mut [Color; 6]) -> usize{
Dec 19 08:12:53.857 INFO [stderr]    |              ^^^^ help: consider using `_item` instead
Dec 19 08:12:53.857 INFO [stderr]    |
Dec 19 08:12:53.857 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 19 08:12:53.857 INFO [stderr] 
Dec 19 08:12:53.857 INFO [stderr] warning: unused variable: `player`
Dec 19 08:12:53.857 INFO [stderr]   --> src/monte_carlo.rs:66:54
Dec 19 08:12:53.857 INFO [stderr]    |
Dec 19 08:12:53.857 INFO [stderr] 66 | pub fn run_simulation(state : game_state::GameState, player : game_state::Color) -> game_state::End{ 
Dec 19 08:12:53.857 INFO [stderr]    |                                                      ^^^^^^ help: consider using `_player` instead
Dec 19 08:12:53.857 INFO [stderr] 
Dec 19 08:12:53.857 INFO [stderr] warning: function is never used: `optimal_move_highest_win`
Dec 19 08:12:53.857 INFO [stderr]    --> src/monte_carlo.rs:161:1
Dec 19 08:12:53.857 INFO [stderr]     |
Dec 19 08:12:53.857 INFO [stderr] 161 | fn optimal_move_highest_win(possible_moves : &Vec<(game_state::Move, &UCTData)>) -> game_state::Move{
Dec 19 08:12:53.857 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 08:12:53.857 INFO [stderr]     |
Dec 19 08:12:53.857 INFO [stderr]     = note: #[warn(dead_code)] on by default
Dec 19 08:12:53.857 INFO [stderr] 
Dec 19 08:12:53.857 INFO [stderr] warning: comparison is useless due to type limits
Dec 19 08:12:53.857 INFO [stderr]   --> src/game_state.rs:47:35
Dec 19 08:12:53.857 INFO [stderr]    |
Dec 19 08:12:53.857 INFO [stderr] 47 |         (self.x <= BOARD_WIDTH && self.x  >= 0)
Dec 19 08:12:53.858 INFO [stderr]    |                                   ^^^^^^^^^^^^
Dec 19 08:12:53.858 INFO [stderr]    |
Dec 19 08:12:53.858 INFO [stderr]    = note: #[warn(unused_comparisons)] on by default
Dec 19 08:12:53.858 INFO [stderr] 
Dec 19 08:12:53.858 INFO [stderr] warning: variable `stepX` should have a snake case name such as `step_x`
Dec 19 08:12:53.858 INFO [stderr]    --> src/game_state.rs:109:62
Dec 19 08:12:53.858 INFO [stderr]     |
Dec 19 08:12:53.858 INFO [stderr] 109 |     pub fn linear_match(&self, start_x : i32, start_y : i32, stepX : i32, stepY : i32, color : Color) -> bool{
Dec 19 08:12:53.858 INFO [stderr]     |                                                              ^^^^^
Dec 19 08:12:53.858 INFO [stderr]     |
Dec 19 08:12:53.858 INFO [stderr]     = note: #[warn(non_snake_case)] on by default
Dec 19 08:12:53.858 INFO [stderr] 
Dec 19 08:12:53.858 INFO [stderr] warning: variable `stepY` should have a snake case name such as `step_y`
Dec 19 08:12:53.858 INFO [stderr]    --> src/game_state.rs:109:75
Dec 19 08:12:53.858 INFO [stderr]     |
Dec 19 08:12:53.858 INFO [stderr] 109 |     pub fn linear_match(&self, start_x : i32, start_y : i32, stepX : i32, stepY : i32, color : Color) -> bool{
Dec 19 08:12:53.858 INFO [stderr]     |                                                                           ^^^^^
Dec 19 08:12:53.858 INFO [stderr] 
Dec 19 08:12:53.858 INFO [stderr] warning: comparison is useless due to type limits
Dec 19 08:12:53.858 INFO [stderr]    --> src/game_state.rs:114:16
Dec 19 08:12:53.858 INFO [stderr]     |
Dec 19 08:12:53.858 INFO [stderr] 114 |             if x < 0 || x >= BOARD_HEIGHT || y < 0 || y >= BOARD_WIDTH{
Dec 19 08:12:53.858 INFO [stderr]     |                ^^^^^
Dec 19 08:12:53.858 INFO [stderr] 
Dec 19 08:12:53.858 INFO [stderr] warning: comparison is useless due to type limits
Dec 19 08:12:53.858 INFO [stderr]    --> src/game_state.rs:114:46
Dec 19 08:12:53.858 INFO [stderr]     |
Dec 19 08:12:53.858 INFO [stderr] 114 |             if x < 0 || x >= BOARD_HEIGHT || y < 0 || y >= BOARD_WIDTH{
Dec 19 08:12:53.858 INFO [stderr]     |                                              ^^^^^
Dec 19 08:12:53.858 INFO [stderr] 
Dec 19 08:12:53.892 INFO [stderr] warning: function is never used: `optimal_move_highest_win`
Dec 19 08:12:53.892 INFO [stderr]    --> src/monte_carlo.rs:161:1
Dec 19 08:12:53.892 INFO [stderr]     |
Dec 19 08:12:53.892 INFO [stderr] 161 | fn optimal_move_highest_win(possible_moves : &Vec<(game_state::Move, &UCTData)>) -> game_state::Move{
Dec 19 08:12:53.892 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 08:12:53.892 INFO [stderr]     |
Dec 19 08:12:53.892 INFO [stderr]     = note: #[warn(dead_code)] on by default
Dec 19 08:12:53.892 INFO [stderr] 
Dec 19 08:12:53.892 INFO [stderr] warning: comparison is useless due to type limits
Dec 19 08:12:53.892 INFO [stderr]   --> src/game_state.rs:47:35
Dec 19 08:12:53.892 INFO [stderr]    |
Dec 19 08:12:53.892 INFO [stderr] 47 |         (self.x <= BOARD_WIDTH && self.x  >= 0)
Dec 19 08:12:53.892 INFO [stderr]    |                                   ^^^^^^^^^^^^
Dec 19 08:12:53.892 INFO [stderr]    |
Dec 19 08:12:53.892 INFO [stderr]    = note: #[warn(unused_comparisons)] on by default
Dec 19 08:12:53.892 INFO [stderr] 
Dec 19 08:12:53.892 INFO [stderr] warning: variable `stepX` should have a snake case name such as `step_x`
Dec 19 08:12:53.892 INFO [stderr]    --> src/game_state.rs:109:62
Dec 19 08:12:53.892 INFO [stderr]     |
Dec 19 08:12:53.892 INFO [stderr] 109 |     pub fn linear_match(&self, start_x : i32, start_y : i32, stepX : i32, stepY : i32, color : Color) -> bool{
Dec 19 08:12:53.892 INFO [stderr]     |                                                              ^^^^^
Dec 19 08:12:53.892 INFO [stderr]     |
Dec 19 08:12:53.892 INFO [stderr]     = note: #[warn(non_snake_case)] on by default
Dec 19 08:12:53.892 INFO [stderr] 
Dec 19 08:12:53.892 INFO [stderr] warning: variable `stepY` should have a snake case name such as `step_y`
Dec 19 08:12:53.892 INFO [stderr]    --> src/game_state.rs:109:75
Dec 19 08:12:53.892 INFO [stderr]     |
Dec 19 08:12:53.892 INFO [stderr] 109 |     pub fn linear_match(&self, start_x : i32, start_y : i32, stepX : i32, stepY : i32, color : Color) -> bool{
Dec 19 08:12:53.892 INFO [stderr]     |                                                                           ^^^^^
Dec 19 08:12:53.892 INFO [stderr] 
Dec 19 08:12:53.892 INFO [stderr] warning: comparison is useless due to type limits
Dec 19 08:12:53.892 INFO [stderr]    --> src/game_state.rs:114:16
Dec 19 08:12:53.892 INFO [stderr]     |
Dec 19 08:12:53.892 INFO [stderr] 114 |             if x < 0 || x >= BOARD_HEIGHT || y < 0 || y >= BOARD_WIDTH{
Dec 19 08:12:53.892 INFO [stderr]     |                ^^^^^
Dec 19 08:12:53.892 INFO [stderr] 
Dec 19 08:12:53.892 INFO [stderr] warning: comparison is useless due to type limits
Dec 19 08:12:53.892 INFO [stderr]    --> src/game_state.rs:114:46
Dec 19 08:12:53.892 INFO [stderr]     |
Dec 19 08:12:53.892 INFO [stderr] 114 |             if x < 0 || x >= BOARD_HEIGHT || y < 0 || y >= BOARD_WIDTH{
Dec 19 08:12:53.892 INFO [stderr]     |                                              ^^^^^
Dec 19 08:12:53.892 INFO [stderr] 
Dec 19 08:12:53.916 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.47s
Dec 19 08:12:54.575 INFO running `"docker" "inspect" "429ed2ea80f8618f08ef5f5ed676c25a01b9bcf6cd299f43ca02d976c53aa258"`
Dec 19 08:12:54.781 INFO running `"docker" "rm" "-f" "429ed2ea80f8618f08ef5f5ed676c25a01b9bcf6cd299f43ca02d976c53aa258"`
Dec 19 08:12:54.881 INFO [stdout] 429ed2ea80f8618f08ef5f5ed676c25a01b9bcf6cd299f43ca02d976c53aa258