Dec 19 17:51:56.133 INFO checking donachys/midpoint_displacement_2d_terrain against try#e70472fc501b855c9080f3772432c10fe20b8866 for pr-56955
Dec 19 17:51:56.133 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-2/try#e70472fc501b855c9080f3772432c10fe20b8866:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/try#e70472fc501b855c9080f3772432c10fe20b8866/gh/donachys/midpoint_displacement_2d_terrain:/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" "+e70472fc501b855c9080f3772432c10fe20b8866-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 17:51:56.466 INFO [stdout] f6731a853f388bba788b24ad9f85f4eb43b22aa49bce801509be33a60b097811
Dec 19 17:51:56.471 INFO running `"docker" "start" "-a" "f6731a853f388bba788b24ad9f85f4eb43b22aa49bce801509be33a60b097811"`
Dec 19 17:51:57.225 INFO [stderr]    Compiling miniz-sys v0.1.7
Dec 19 17:51:57.228 INFO [stderr]     Checking rayon v0.6.0
Dec 19 17:51:58.804 INFO [stderr]     Checking flate2 v0.2.14
Dec 19 17:51:58.817 INFO [stderr]     Checking jpeg-decoder v0.1.10
Dec 19 17:51:59.456 INFO [stderr]     Checking png v0.5.2
Dec 19 17:52:00.392 INFO [stderr]     Checking image v0.10.4
Dec 19 17:52:03.775 INFO [stderr]     Checking midpoint_displacement_2d v0.1.0 (/opt/crater/workdir)
Dec 19 17:52:04.240 INFO [stderr] warning: variable does not need to be mutable
Dec 19 17:52:04.240 INFO [stderr]   --> src/main.rs:58:13
Dec 19 17:52:04.240 INFO [stderr]    |
Dec 19 17:52:04.240 INFO [stderr] 58 |         let mut pixel = imgbuf.get_pixel_mut(wheel_center.x, wheel_center.y);
Dec 19 17:52:04.240 INFO [stderr]    |             ----^^^^^
Dec 19 17:52:04.240 INFO [stderr]    |             |
Dec 19 17:52:04.240 INFO [stderr]    |             help: remove this `mut`
Dec 19 17:52:04.240 INFO [stderr]    |
Dec 19 17:52:04.240 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 19 17:52:04.240 INFO [stderr] 
Dec 19 17:52:04.418 INFO [stderr] warning: variable does not need to be mutable
Dec 19 17:52:04.418 INFO [stderr]   --> src/main.rs:58:13
Dec 19 17:52:04.418 INFO [stderr]    |
Dec 19 17:52:04.418 INFO [stderr] 58 |         let mut pixel = imgbuf.get_pixel_mut(wheel_center.x, wheel_center.y);
Dec 19 17:52:04.418 INFO [stderr]    |             ----^^^^^
Dec 19 17:52:04.418 INFO [stderr]    |             |
Dec 19 17:52:04.419 INFO [stderr]    |             help: remove this `mut`
Dec 19 17:52:04.419 INFO [stderr]    |
Dec 19 17:52:04.419 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 19 17:52:04.419 INFO [stderr] 
Dec 19 17:52:04.442 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.29s
Dec 19 17:52:04.711 INFO running `"docker" "inspect" "f6731a853f388bba788b24ad9f85f4eb43b22aa49bce801509be33a60b097811"`
Dec 19 17:52:04.803 INFO running `"docker" "rm" "-f" "f6731a853f388bba788b24ad9f85f4eb43b22aa49bce801509be33a60b097811"`
Dec 19 17:52:04.918 INFO [stdout] f6731a853f388bba788b24ad9f85f4eb43b22aa49bce801509be33a60b097811