[INFO] updating cached repository https://github.com/donachys/midpoint_displacement_2d_terrain
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/big/crater/work/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 649e1ef34a71b4ec2d4b077d7a52cc16c05d5cdd
[INFO] testing donachys/midpoint_displacement_2d_terrain against beta-2019-09-28 for beta-1.39-1
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdonachys%2Fmidpoint_displacement_2d_terrain" "work/builds/worker-5/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/donachys/midpoint_displacement_2d_terrain on toolchain beta-2019-09-28
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/donachys/midpoint_displacement_2d_terrain
[INFO] finished tweaking git repo https://github.com/donachys/midpoint_displacement_2d_terrain
[INFO] tweaked toml for git repo https://github.com/donachys/midpoint_displacement_2d_terrain written to work/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/donachys/midpoint_displacement_2d_terrain already has a lockfile, it will not be regenerated
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-5/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2019-09-28" "build" "--frozen"`
[INFO] [stdout] 39a9636b9ef4818ead4ec2fc9e9ed56c13a2cb0610ebed34c04f2a60ed8a34e4
[INFO] running `"docker" "start" "-a" "39a9636b9ef4818ead4ec2fc9e9ed56c13a2cb0610ebed34c04f2a60ed8a34e4"`
[INFO] [stderr]    Compiling gcc v0.3.40
[INFO] [stderr]    Compiling rayon v0.6.0
[INFO] [stderr]    Compiling miniz-sys v0.1.7
[INFO] [stderr]    Compiling jpeg-decoder v0.1.10
[INFO] [stderr]    Compiling flate2 v0.2.14
[INFO] [stderr]    Compiling png v0.5.2
[INFO] [stderr]    Compiling image v0.10.4
[INFO] [stderr]    Compiling midpoint_displacement_2d v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:58:13
[INFO] [stderr]    |
[INFO] [stderr] 58 |         let mut pixel = imgbuf.get_pixel_mut(wheel_center.x, wheel_center.y);
[INFO] [stderr]    |             ----^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:66:21
[INFO] [stderr]    |
[INFO] [stderr] 66 |                 let mut pixel = imgbuf.get_pixel_mut(point.x, point.y);
[INFO] [stderr]    |                     ----^^^^^
[INFO] [stderr]    |                     |
[INFO] [stderr]    |                     help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:92:25
[INFO] [stderr]    |
[INFO] [stderr] 92 |                     let mut pixel = imgbuf.get_pixel_mut(point.x, point.y);
[INFO] [stderr]    |                         ----^^^^^
[INFO] [stderr]    |                         |
[INFO] [stderr]    |                         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:97:29
[INFO] [stderr]    |
[INFO] [stderr] 97 |                         let mut vert_pixel = imgbuf.get_pixel_mut(vert_point.x, vert_point.y);
[INFO] [stderr]    |                             ----^^^^^^^^^^
[INFO] [stderr]    |                             |
[INFO] [stderr]    |                             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 12.14s
[INFO] running `"docker" "inspect" "39a9636b9ef4818ead4ec2fc9e9ed56c13a2cb0610ebed34c04f2a60ed8a34e4"`
[INFO] running `"docker" "rm" "-f" "39a9636b9ef4818ead4ec2fc9e9ed56c13a2cb0610ebed34c04f2a60ed8a34e4"`
[INFO] [stdout] 39a9636b9ef4818ead4ec2fc9e9ed56c13a2cb0610ebed34c04f2a60ed8a34e4
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-5/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2019-09-28" "test" "--frozen" "--no-run"`
[INFO] [stdout] 70ce804f2397f135aca78b5946f443be672a7c30b58a74ab38708be589b5b78e
[INFO] running `"docker" "start" "-a" "70ce804f2397f135aca78b5946f443be672a7c30b58a74ab38708be589b5b78e"`
[INFO] [stderr]    Compiling midpoint_displacement_2d v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:58:13
[INFO] [stderr]    |
[INFO] [stderr] 58 |         let mut pixel = imgbuf.get_pixel_mut(wheel_center.x, wheel_center.y);
[INFO] [stderr]    |             ----^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:66:21
[INFO] [stderr]    |
[INFO] [stderr] 66 |                 let mut pixel = imgbuf.get_pixel_mut(point.x, point.y);
[INFO] [stderr]    |                     ----^^^^^
[INFO] [stderr]    |                     |
[INFO] [stderr]    |                     help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:92:25
[INFO] [stderr]    |
[INFO] [stderr] 92 |                     let mut pixel = imgbuf.get_pixel_mut(point.x, point.y);
[INFO] [stderr]    |                         ----^^^^^
[INFO] [stderr]    |                         |
[INFO] [stderr]    |                         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:97:29
[INFO] [stderr]    |
[INFO] [stderr] 97 |                         let mut vert_pixel = imgbuf.get_pixel_mut(vert_point.x, vert_point.y);
[INFO] [stderr]    |                             ----^^^^^^^^^^
[INFO] [stderr]    |                             |
[INFO] [stderr]    |                             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.55s
[INFO] running `"docker" "inspect" "70ce804f2397f135aca78b5946f443be672a7c30b58a74ab38708be589b5b78e"`
[INFO] running `"docker" "rm" "-f" "70ce804f2397f135aca78b5946f443be672a7c30b58a74ab38708be589b5b78e"`
[INFO] [stdout] 70ce804f2397f135aca78b5946f443be672a7c30b58a74ab38708be589b5b78e
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-5/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2019-09-28" "test" "--frozen"`
[INFO] [stdout] 1ea49103e92c8a421c63af58512905bc0ecb26adbf07e06c4334f380e8c60fd7
[INFO] running `"docker" "start" "-a" "1ea49103e92c8a421c63af58512905bc0ecb26adbf07e06c4334f380e8c60fd7"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/midpoint_displacement_2d-cddbbd08714dc275
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "1ea49103e92c8a421c63af58512905bc0ecb26adbf07e06c4334f380e8c60fd7"`
[INFO] running `"docker" "rm" "-f" "1ea49103e92c8a421c63af58512905bc0ecb26adbf07e06c4334f380e8c60fd7"`
[INFO] [stdout] 1ea49103e92c8a421c63af58512905bc0ecb26adbf07e06c4334f380e8c60fd7