Dec 19 13:50:21.771 INFO checking lasagnaphil/minesweeper-rs against master#d99a320cba42f661aebfa1293b7b2ec3603dda75 for pr-56955
Dec 19 13:50:21.771 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-0/master#d99a320cba42f661aebfa1293b7b2ec3603dda75:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/gh/lasagnaphil/minesweeper-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" "+d99a320cba42f661aebfa1293b7b2ec3603dda75-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 13:50:22.280 INFO [stdout] 46d2370da7f013141ed89582913ce4f58b0412bd94ec9ea064386b1a34a2d181
Dec 19 13:50:22.286 INFO running `"docker" "start" "-a" "46d2370da7f013141ed89582913ce4f58b0412bd94ec9ea064386b1a34a2d181"`
Dec 19 13:50:23.633 INFO [stderr]     Checking termion v1.5.1
Dec 19 13:50:24.442 INFO [stderr]     Checking minesweeper v0.1.0 (/opt/crater/workdir)
Dec 19 13:50:24.783 INFO [stderr] warning: unused imports: `sample`, `thread_rng`
Dec 19 13:50:24.783 INFO [stderr]  --> src/main.rs:8:12
Dec 19 13:50:24.783 INFO [stderr]   |
Dec 19 13:50:24.783 INFO [stderr] 8 | use rand::{thread_rng, sample};
Dec 19 13:50:24.783 INFO [stderr]   |            ^^^^^^^^^^  ^^^^^^
Dec 19 13:50:24.783 INFO [stderr]   |
Dec 19 13:50:24.783 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 19 13:50:24.783 INFO [stderr] 
Dec 19 13:50:24.783 INFO [stderr] warning: unused import: `MouseEvent`
Dec 19 13:50:24.783 INFO [stderr]   --> src/main.rs:12:34
Dec 19 13:50:24.783 INFO [stderr]    |
Dec 19 13:50:24.783 INFO [stderr] 12 | use termion::event::{Key, Event, MouseEvent};
Dec 19 13:50:24.783 INFO [stderr]    |                                  ^^^^^^^^^^
Dec 19 13:50:24.783 INFO [stderr] 
Dec 19 13:50:24.783 INFO [stderr] warning: unused imports: `color`, `style`
Dec 19 13:50:24.783 INFO [stderr]   --> src/main.rs:15:15
Dec 19 13:50:24.783 INFO [stderr]    |
Dec 19 13:50:24.783 INFO [stderr] 15 | use termion::{color, style, cursor};
Dec 19 13:50:24.784 INFO [stderr]    |               ^^^^^  ^^^^^
Dec 19 13:50:24.784 INFO [stderr] 
Dec 19 13:50:24.784 INFO [stderr] warning: unnecessary parentheses around method argument
Dec 19 13:50:24.784 INFO [stderr]    --> src/main.rs:120:54
Dec 19 13:50:24.784 INFO [stderr]     |
Dec 19 13:50:24.784 INFO [stderr] 120 |         let list = (0..self.width).cartesian_product((0..self.height));
Dec 19 13:50:24.784 INFO [stderr]     |                                                      ^^^^^^^^^^^^^^^^ help: remove these parentheses
Dec 19 13:50:24.784 INFO [stderr]     |
Dec 19 13:50:24.784 INFO [stderr]     = note: #[warn(unused_parens)] on by default
Dec 19 13:50:24.784 INFO [stderr] 
Dec 19 13:50:24.887 INFO [stderr] warning: unused imports: `sample`, `thread_rng`
Dec 19 13:50:24.887 INFO [stderr]  --> src/main.rs:8:12
Dec 19 13:50:24.887 INFO [stderr]   |
Dec 19 13:50:24.887 INFO [stderr] 8 | use rand::{thread_rng, sample};
Dec 19 13:50:24.887 INFO [stderr]   |            ^^^^^^^^^^  ^^^^^^
Dec 19 13:50:24.887 INFO [stderr]   |
Dec 19 13:50:24.887 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 19 13:50:24.887 INFO [stderr] 
Dec 19 13:50:24.887 INFO [stderr] warning: unused import: `MouseEvent`
Dec 19 13:50:24.887 INFO [stderr]   --> src/main.rs:12:34
Dec 19 13:50:24.887 INFO [stderr]    |
Dec 19 13:50:24.887 INFO [stderr] 12 | use termion::event::{Key, Event, MouseEvent};
Dec 19 13:50:24.887 INFO [stderr]    |                                  ^^^^^^^^^^
Dec 19 13:50:24.887 INFO [stderr] 
Dec 19 13:50:24.887 INFO [stderr] warning: unused imports: `color`, `style`
Dec 19 13:50:24.887 INFO [stderr]   --> src/main.rs:15:15
Dec 19 13:50:24.887 INFO [stderr]    |
Dec 19 13:50:24.887 INFO [stderr] 15 | use termion::{color, style, cursor};
Dec 19 13:50:24.887 INFO [stderr]    |               ^^^^^  ^^^^^
Dec 19 13:50:24.887 INFO [stderr] 
Dec 19 13:50:24.887 INFO [stderr] warning: unnecessary parentheses around method argument
Dec 19 13:50:24.887 INFO [stderr]    --> src/main.rs:120:54
Dec 19 13:50:24.887 INFO [stderr]     |
Dec 19 13:50:24.887 INFO [stderr] 120 |         let list = (0..self.width).cartesian_product((0..self.height));
Dec 19 13:50:24.887 INFO [stderr]     |                                                      ^^^^^^^^^^^^^^^^ help: remove these parentheses
Dec 19 13:50:24.887 INFO [stderr]     |
Dec 19 13:50:24.887 INFO [stderr]     = note: #[warn(unused_parens)] on by default
Dec 19 13:50:24.887 INFO [stderr] 
Dec 19 13:50:25.080 INFO [stderr] warning: variable `gameConfig` should have a snake case name such as `game_config`
Dec 19 13:50:25.080 INFO [stderr]    --> src/main.rs:284:9
Dec 19 13:50:25.080 INFO [stderr]     |
Dec 19 13:50:25.080 INFO [stderr] 284 |     let gameConfig = match matches.value_of("DIFFICULTY") {
Dec 19 13:50:25.080 INFO [stderr]     |         ^^^^^^^^^^
Dec 19 13:50:25.080 INFO [stderr]     |
Dec 19 13:50:25.080 INFO [stderr]     = note: #[warn(non_snake_case)] on by default
Dec 19 13:50:25.080 INFO [stderr] 
Dec 19 13:50:25.212 INFO [stderr] warning: variable `gameConfig` should have a snake case name such as `game_config`
Dec 19 13:50:25.212 INFO [stderr]    --> src/main.rs:284:9
Dec 19 13:50:25.212 INFO [stderr]     |
Dec 19 13:50:25.212 INFO [stderr] 284 |     let gameConfig = match matches.value_of("DIFFICULTY") {
Dec 19 13:50:25.212 INFO [stderr]     |         ^^^^^^^^^^
Dec 19 13:50:25.212 INFO [stderr]     |
Dec 19 13:50:25.212 INFO [stderr]     = note: #[warn(non_snake_case)] on by default
Dec 19 13:50:25.212 INFO [stderr] 
Dec 19 13:50:25.272 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.72s
Dec 19 13:50:26.318 INFO running `"docker" "inspect" "46d2370da7f013141ed89582913ce4f58b0412bd94ec9ea064386b1a34a2d181"`
Dec 19 13:50:26.604 INFO running `"docker" "rm" "-f" "46d2370da7f013141ed89582913ce4f58b0412bd94ec9ea064386b1a34a2d181"`
Dec 19 13:50:26.824 INFO [stdout] 46d2370da7f013141ed89582913ce4f58b0412bd94ec9ea064386b1a34a2d181