Dec 19 12:22:21.657 INFO checking mpizenberg/computer-vision-rs against try#e70472fc501b855c9080f3772432c10fe20b8866 for pr-56955
Dec 19 12:22:21.657 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-3/try#e70472fc501b855c9080f3772432c10fe20b8866:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/try#e70472fc501b855c9080f3772432c10fe20b8866/gh/mpizenberg/computer-vision-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" "+e70472fc501b855c9080f3772432c10fe20b8866-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 12:22:22.072 INFO [stdout] 868463d73021f98a1240838dcba72126389f552a299246c73911022e2c5c11d4
Dec 19 12:22:22.074 INFO running `"docker" "start" "-a" "868463d73021f98a1240838dcba72126389f552a299246c73911022e2c5c11d4"`
Dec 19 12:22:23.078 INFO [stderr]     Checking serde v1.0.35
Dec 19 12:22:23.084 INFO [stderr]     Checking atty v0.2.10
Dec 19 12:22:23.084 INFO [stderr]     Checking deflate v0.7.18
Dec 19 12:22:23.084 INFO [stderr]     Checking rand v0.5.1
Dec 19 12:22:23.084 INFO [stderr]     Checking tempfile v3.0.2
Dec 19 12:22:23.084 INFO [stderr]     Checking aho-corasick v0.6.6
Dec 19 12:22:23.084 INFO [stderr]     Checking nom v4.0.0
Dec 19 12:22:23.084 INFO [stderr]     Checking backtrace-sys v0.1.23
Dec 19 12:22:23.808 INFO [stderr]     Checking x11-dl v2.17.5
Dec 19 12:22:23.966 INFO [stderr]     Checking num-integer v0.1.36
Dec 19 12:22:24.529 INFO [stderr]     Checking approx v0.2.0
Dec 19 12:22:24.566 INFO [stderr]     Checking num-complex v0.2.0
Dec 19 12:22:25.972 INFO [stderr]    Compiling syn v0.14.2
Dec 19 12:22:26.241 INFO [stderr]     Checking generic-array v0.11.0
Dec 19 12:22:27.816 INFO [stderr]    Compiling glutin v0.14.0
Dec 19 12:22:27.920 INFO [stderr]    Compiling glium v0.21.0
Dec 19 12:22:28.842 INFO [stderr]     Checking backtrace v0.3.8
Dec 19 12:22:29.090 INFO [stderr]     Checking num-bigint v0.1.44
Dec 19 12:22:29.565 INFO [stderr]     Checking num-iter v0.1.35
Dec 19 12:22:36.025 INFO [stderr]    Compiling serde_derive_internals v0.22.1
Dec 19 12:22:36.057 INFO [stderr]     Checking regex v1.0.1
Dec 19 12:22:36.174 INFO [stderr]     Checking rayon-core v1.4.0
Dec 19 12:22:36.970 INFO [stderr]     Checking alga v0.6.0
Dec 19 12:22:39.340 INFO [stderr]     Checking wayland-sys v0.12.5
Dec 19 12:22:41.334 INFO [stderr]     Checking png v0.12.0
Dec 19 12:22:42.200 INFO [stderr]     Checking rusttype v0.5.2
Dec 19 12:22:57.637 INFO [stderr]     Checking num-rational v0.1.42
Dec 19 12:22:58.528 INFO [stderr]     Checking rayon v1.0.1
Dec 19 12:22:58.531 INFO [stderr]     Checking wayland-client v0.12.5
Dec 19 12:22:59.417 INFO [stderr]    Compiling serde_derive v1.0.35
Dec 19 12:22:59.960 INFO [stderr]     Checking env_logger v0.5.10
Dec 19 12:23:01.869 INFO [stderr]    Compiling num-derive v0.2.2
Dec 19 12:23:04.628 INFO [stderr]     Checking nalgebra v0.15.3
Dec 19 12:23:11.506 INFO [stderr]     Checking num v0.1.42
Dec 19 12:23:12.498 INFO [stderr]     Checking quickcheck v0.6.2
Dec 19 12:23:12.761 INFO [stderr]     Checking wayland-protocols v0.12.5
Dec 19 12:23:16.276 INFO [stderr]     Checking wayland-kbd v0.13.1
Dec 19 12:23:21.076 INFO [stderr]     Checking serde_json v1.0.13
Dec 19 12:23:22.670 INFO [stderr]     Checking jpeg-decoder v0.1.14
Dec 19 12:23:30.509 INFO [stderr]     Checking image v0.19.0
Dec 19 12:23:33.432 INFO [stderr]     Checking wayland-window v0.13.3
Dec 19 12:23:39.896 INFO [stderr]     Checking winit v0.12.0
Dec 19 12:23:43.916 INFO [stderr]     Checking pistoncore-input v0.21.0
Dec 19 12:24:11.560 INFO [stderr]     Checking conrod v0.60.0
Dec 19 12:24:23.704 INFO [stderr]     Checking computer-vision-rs v0.1.0 (/opt/crater/workdir)
Dec 19 12:24:29.005 INFO [stderr] warning: unused variable: `g_x`
Dec 19 12:24:29.005 INFO [stderr]   --> examples/gradient.rs:23:14
Dec 19 12:24:29.005 INFO [stderr]    |
Dec 19 12:24:29.005 INFO [stderr] 23 |         let (g_x, g_y) = gradient_2(&img_matrix);
Dec 19 12:24:29.005 INFO [stderr]    |              ^^^ help: consider using `_g_x` instead
Dec 19 12:24:29.005 INFO [stderr]    |
Dec 19 12:24:29.005 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 19 12:24:29.005 INFO [stderr] 
Dec 19 12:24:29.005 INFO [stderr] warning: unused variable: `g_y`
Dec 19 12:24:29.005 INFO [stderr]   --> examples/gradient.rs:23:19
Dec 19 12:24:29.005 INFO [stderr]    |
Dec 19 12:24:29.005 INFO [stderr] 23 |         let (g_x, g_y) = gradient_2(&img_matrix);
Dec 19 12:24:29.005 INFO [stderr]    |                   ^^^ help: consider using `_g_y` instead
Dec 19 12:24:29.005 INFO [stderr] 
Dec 19 12:24:29.148 INFO [stderr] warning: function is never used: `gradient_x_inner_for`
Dec 19 12:24:29.148 INFO [stderr]   --> examples/gradient.rs:53:1
Dec 19 12:24:29.148 INFO [stderr]    |
Dec 19 12:24:29.148 INFO [stderr] 53 | fn gradient_x_inner_for(mat: &DMatrix<u8>) -> DMatrix<i16> {
Dec 19 12:24:29.148 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 12:24:29.156 INFO [stderr]    |
Dec 19 12:24:29.156 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 19 12:24:29.156 INFO [stderr] 
Dec 19 12:24:29.156 INFO [stderr] warning: function is never used: `gradient_y_inner_for`
Dec 19 12:24:29.156 INFO [stderr]   --> examples/gradient.rs:66:1
Dec 19 12:24:29.156 INFO [stderr]    |
Dec 19 12:24:29.156 INFO [stderr] 66 | fn gradient_y_inner_for(mat: &DMatrix<u8>) -> DMatrix<i16> {
Dec 19 12:24:29.156 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 12:24:29.156 INFO [stderr] 
Dec 19 12:24:29.156 INFO [stderr] warning: function is never used: `gradient_x_inner_from_fn`
Dec 19 12:24:29.156 INFO [stderr]   --> examples/gradient.rs:81:1
Dec 19 12:24:29.156 INFO [stderr]    |
Dec 19 12:24:29.156 INFO [stderr] 81 | fn gradient_x_inner_from_fn(mat: &DMatrix<u8>) -> DMatrix<i16> {
Dec 19 12:24:29.156 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 12:24:29.156 INFO [stderr] 
Dec 19 12:24:29.156 INFO [stderr] warning: function is never used: `gradient_y_inner_from_fn`
Dec 19 12:24:29.156 INFO [stderr]   --> examples/gradient.rs:88:1
Dec 19 12:24:29.156 INFO [stderr]    |
Dec 19 12:24:29.156 INFO [stderr] 88 | fn gradient_y_inner_from_fn(mat: &DMatrix<u8>) -> DMatrix<i16> {
Dec 19 12:24:29.156 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 12:24:29.156 INFO [stderr] 
Dec 19 12:24:32.440 INFO [stderr] warning: function is never used: `half_gradients`
Dec 19 12:24:32.440 INFO [stderr]   --> examples/gradient_pyramid.rs:90:1
Dec 19 12:24:32.440 INFO [stderr]    |
Dec 19 12:24:32.440 INFO [stderr] 90 | fn half_gradients(mat: &DMatrix<u8>) -> DMatrix<(i16, i16, u16)> {
Dec 19 12:24:32.440 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 12:24:32.440 INFO [stderr]    |
Dec 19 12:24:32.440 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 19 12:24:32.440 INFO [stderr] 
Dec 19 12:24:32.918 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2m 10s
Dec 19 12:24:33.775 INFO running `"docker" "inspect" "868463d73021f98a1240838dcba72126389f552a299246c73911022e2c5c11d4"`
Dec 19 12:24:34.109 INFO running `"docker" "rm" "-f" "868463d73021f98a1240838dcba72126389f552a299246c73911022e2c5c11d4"`
Dec 19 12:24:34.488 INFO [stdout] 868463d73021f98a1240838dcba72126389f552a299246c73911022e2c5c11d4