Dec 18 08:27:06.205 INFO checking Baelyk/minesweeper against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 18 08:27:06.205 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-0/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/gh/Baelyk/minesweeper:/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" "+96d1334e567237b1507cd277938e7ae2de75ff51-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 18 08:27:06.796 INFO [stdout] 65ca174a6fe94aa1954aa380d6f48fbfac839491fbc356d48ed3b6921bf2fd62
Dec 18 08:27:06.800 INFO running `"docker" "start" "-a" "65ca174a6fe94aa1954aa380d6f48fbfac839491fbc356d48ed3b6921bf2fd62"`
Dec 18 08:27:09.156 INFO [stderr]     Checking piston2d-graphics v0.26.0
Dec 18 08:27:09.156 INFO [stderr]    Compiling syn v0.13.3
Dec 18 08:27:09.161 INFO [stderr]    Compiling gl_generator v0.5.5
Dec 18 08:27:09.161 INFO [stderr]    Compiling gl_generator v0.6.1
Dec 18 08:27:09.162 INFO [stderr]    Compiling gl_generator v0.7.0
Dec 18 08:27:09.162 INFO [stderr]     Checking png v0.9.0
Dec 18 08:27:09.162 INFO [stderr]    Compiling target_build_utils v0.3.1
Dec 18 08:27:17.969 INFO [stderr]     Checking image v0.15.0
Dec 18 08:27:23.312 INFO [stderr]    Compiling glutin v0.9.2
Dec 18 08:27:24.684 INFO [stderr]    Compiling gfx_gl v0.4.0
Dec 18 08:27:24.885 INFO [stderr]    Compiling gl v0.6.5
Dec 18 08:27:39.264 INFO [stderr]     Checking piston-gfx_texture v0.26.0
Dec 18 08:27:40.220 INFO [stderr]    Compiling serde_derive_internals v0.23.1
Dec 18 08:27:46.996 INFO [stderr]     Checking piston2d-gfx_graphics v0.43.0
Dec 18 08:27:47.856 INFO [stderr]    Compiling serde_derive v1.0.43
Dec 18 08:27:57.572 INFO [stderr]    Compiling libloading v0.3.4
Dec 18 08:28:02.100 INFO [stderr]     Checking dlib v0.3.1
Dec 18 08:28:02.186 INFO [stderr]     Checking gfx_device_gl v0.14.6
Dec 18 08:28:02.468 INFO [stderr]     Checking wayland-sys v0.9.10
Dec 18 08:28:02.940 INFO [stderr]     Checking wayland-client v0.9.10
Dec 18 08:28:03.394 INFO [stderr]     Checking pistoncore-input v0.19.0
Dec 18 08:28:05.240 INFO [stderr]     Checking wayland-protocols v0.9.10
Dec 18 08:28:05.240 INFO [stderr]     Checking wayland-kbd v0.9.1
Dec 18 08:28:07.073 INFO [stderr]     Checking pistoncore-window v0.28.0
Dec 18 08:28:07.665 INFO [stderr]     Checking wayland-window v0.7.0
Dec 18 08:28:08.280 INFO [stderr]     Checking winit v0.7.6
Dec 18 08:28:09.840 INFO [stderr]     Checking pistoncore-event_loop v0.33.0
Dec 18 08:28:11.028 INFO [stderr]     Checking piston v0.33.0
Dec 18 08:28:12.427 INFO [stderr]     Checking pistoncore-glutin_window v0.39.1
Dec 18 08:28:13.589 INFO [stderr]     Checking piston_window v0.70.0
Dec 18 08:28:15.380 INFO [stderr]     Checking minesweeper v0.1.0 (/opt/crater/workdir)
Dec 18 08:28:17.490 INFO [stderr] warning: variable does not need to be mutable
Dec 18 08:28:17.490 INFO [stderr]   --> src/main.rs:53:9
Dec 18 08:28:17.490 INFO [stderr]    |
Dec 18 08:28:17.490 INFO [stderr] 53 |     let mut update = true;
Dec 18 08:28:17.490 INFO [stderr]    |         ----^^^^^^
Dec 18 08:28:17.490 INFO [stderr]    |         |
Dec 18 08:28:17.490 INFO [stderr]    |         help: remove this `mut`
Dec 18 08:28:17.490 INFO [stderr]    |
Dec 18 08:28:17.490 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 18 08:28:17.490 INFO [stderr] 
Dec 18 08:28:17.662 INFO [stderr] warning: variable does not need to be mutable
Dec 18 08:28:17.662 INFO [stderr]   --> src/main.rs:53:9
Dec 18 08:28:17.662 INFO [stderr]    |
Dec 18 08:28:17.662 INFO [stderr] 53 |     let mut update = true;
Dec 18 08:28:17.662 INFO [stderr]    |         ----^^^^^^
Dec 18 08:28:17.662 INFO [stderr]    |         |
Dec 18 08:28:17.662 INFO [stderr]    |         help: remove this `mut`
Dec 18 08:28:17.662 INFO [stderr]    |
Dec 18 08:28:17.662 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 18 08:28:17.662 INFO [stderr] 
Dec 18 08:28:17.725 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 09s
Dec 18 08:28:18.196 INFO running `"docker" "inspect" "65ca174a6fe94aa1954aa380d6f48fbfac839491fbc356d48ed3b6921bf2fd62"`
Dec 18 08:28:18.436 INFO running `"docker" "rm" "-f" "65ca174a6fe94aa1954aa380d6f48fbfac839491fbc356d48ed3b6921bf2fd62"`
Dec 18 08:28:18.576 INFO [stdout] 65ca174a6fe94aa1954aa380d6f48fbfac839491fbc356d48ed3b6921bf2fd62