Dec 11 13:17:11.040 INFO checking mpizenberg/computer-vision-rs against try#aa9aa79c3c583aab59ac9134542d60a780c35e2e for pr-56677
Dec 11 13:17:11.041 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-3/try#aa9aa79c3c583aab59ac9134542d60a780c35e2e:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/pr-56677/try#aa9aa79c3c583aab59ac9134542d60a780c35e2e:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +aa9aa79c3c583aab59ac9134542d60a780c35e2e-alt check --frozen --all --all-targets" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 11 13:17:11.744 INFO [stdout] b006acde87f22657e7ca27fc6fb3ddeb971eddf7ca549bba38a542e2732e5e6d
Dec 11 13:17:11.746 INFO running `"docker" "start" "-a" "b006acde87f22657e7ca27fc6fb3ddeb971eddf7ca549bba38a542e2732e5e6d"`
Dec 11 13:17:12.792 INFO [stderr] usermod: no changes
Dec 11 13:17:13.168 INFO [stderr]    Compiling num-complex v0.2.0
Dec 11 13:17:13.180 INFO [stderr]     Checking serde v1.0.35
Dec 11 13:17:13.180 INFO [stderr]     Checking atty v0.2.10
Dec 11 13:17:13.180 INFO [stderr]     Checking petgraph v0.4.12
Dec 11 13:17:13.180 INFO [stderr]     Checking deflate v0.7.18
Dec 11 13:17:13.188 INFO [stderr]     Checking rand v0.5.1
Dec 11 13:17:13.188 INFO [stderr]     Checking tempfile v3.0.2
Dec 11 13:17:13.188 INFO [stderr]     Checking aho-corasick v0.6.6
Dec 11 13:17:14.108 INFO [stderr]     Checking nom v4.0.0
Dec 11 13:17:15.657 INFO [stderr]     Checking backtrace-sys v0.1.23
Dec 11 13:17:16.119 INFO [stderr]     Checking x11-dl v2.17.5
Dec 11 13:17:17.196 INFO [stderr]    Compiling syn v0.13.11
Dec 11 13:17:17.536 INFO [stderr]     Checking num-integer v0.1.36
Dec 11 13:17:19.741 INFO [stderr]     Checking approx v0.2.0
Dec 11 13:17:20.558 INFO [stderr]     Checking generic-array v0.11.0
Dec 11 13:17:22.803 INFO [stderr]     Checking regex v1.0.1
Dec 11 13:17:23.501 INFO [stderr]    Compiling glutin v0.14.0
Dec 11 13:17:24.356 INFO [stderr]    Compiling glium v0.21.0
Dec 11 13:17:25.445 INFO [stderr]    Compiling serde_derive_internals v0.22.1
Dec 11 13:17:27.708 INFO [stderr]     Checking backtrace v0.3.8
Dec 11 13:17:38.961 INFO [stderr]    Compiling num-derive v0.2.2
Dec 11 13:17:39.052 INFO [stderr]     Checking ordered-float v0.5.0
Dec 11 13:17:39.186 INFO [stderr]     Checking num-bigint v0.1.44
Dec 11 13:17:39.318 INFO [stderr]     Checking num-iter v0.1.35
Dec 11 13:17:39.529 INFO [stderr]     Checking rayon-core v1.4.0
Dec 11 13:17:40.608 INFO [stderr]     Checking wayland-sys v0.12.5
Dec 11 13:17:41.526 INFO [stderr]     Checking daggy v0.5.0
Dec 11 13:17:44.508 INFO [stderr]     Checking env_logger v0.5.10
Dec 11 13:17:46.277 INFO [stderr]    Compiling serde_derive v1.0.35
Dec 11 13:17:50.104 INFO [stderr]     Checking png v0.12.0
Dec 11 13:17:51.205 INFO [stderr]     Checking rusttype v0.5.2
Dec 11 13:17:52.293 INFO [stderr]     Checking wayland-client v0.12.5
Dec 11 13:17:57.602 INFO [stderr]     Checking rayon v1.0.1
Dec 11 13:18:00.620 INFO [stderr]     Checking alga v0.6.0
Dec 11 13:18:02.708 INFO [stderr]     Checking quickcheck v0.6.2
Dec 11 13:18:04.064 INFO [stderr]     Checking num-rational v0.1.42
Dec 11 13:18:32.326 INFO [stderr]     Checking serde_json v1.0.13
Dec 11 13:18:32.358 INFO [stderr]     Checking wayland-protocols v0.12.5
Dec 11 13:18:32.440 INFO [stderr]     Checking wayland-kbd v0.13.1
Dec 11 13:18:32.520 INFO [stderr]     Checking num v0.1.42
Dec 11 13:18:32.549 INFO [stderr]     Checking jpeg-decoder v0.1.14
Dec 11 13:18:32.772 INFO [stderr]     Checking nalgebra v0.15.3
Dec 11 13:18:34.592 INFO [stderr]    Compiling conrod_derive v0.1.2
Dec 11 13:18:41.836 INFO [stderr]     Checking pistoncore-input v0.21.0
Dec 11 13:18:43.284 INFO [stderr]     Checking image v0.19.0
Dec 11 13:18:48.488 INFO [stderr]     Checking wayland-window v0.13.3
Dec 11 13:18:51.164 INFO [stderr]     Checking winit v0.12.0
Dec 11 13:19:23.994 INFO [stderr]     Checking conrod v0.60.0
Dec 11 13:19:38.594 INFO [stderr]     Checking computer-vision-rs v0.1.0 (/source)
Dec 11 13:19:52.110 INFO [stderr] warning: function is never used: `half_gradients`
Dec 11 13:19:52.110 INFO [stderr]   --> examples/gradient_pyramid.rs:90:1
Dec 11 13:19:52.110 INFO [stderr]    |
Dec 11 13:19:52.110 INFO [stderr] 90 | fn half_gradients(mat: &DMatrix<u8>) -> DMatrix<(i16, i16, u16)> {
Dec 11 13:19:52.111 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 13:19:52.111 INFO [stderr]    |
Dec 11 13:19:52.111 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 11 13:19:52.111 INFO [stderr] 
Dec 11 13:19:57.004 INFO [stderr] warning: unused variable: `g_x`
Dec 11 13:19:57.005 INFO [stderr]   --> examples/gradient.rs:23:14
Dec 11 13:19:57.005 INFO [stderr]    |
Dec 11 13:19:57.005 INFO [stderr] 23 |         let (g_x, g_y) = gradient_2(&img_matrix);
Dec 11 13:19:57.005 INFO [stderr]    |              ^^^ help: consider using `_g_x` instead
Dec 11 13:19:57.005 INFO [stderr]    |
Dec 11 13:19:57.005 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 11 13:19:57.005 INFO [stderr] 
Dec 11 13:19:57.005 INFO [stderr] warning: unused variable: `g_y`
Dec 11 13:19:57.005 INFO [stderr]   --> examples/gradient.rs:23:19
Dec 11 13:19:57.005 INFO [stderr]    |
Dec 11 13:19:57.005 INFO [stderr] 23 |         let (g_x, g_y) = gradient_2(&img_matrix);
Dec 11 13:19:57.005 INFO [stderr]    |                   ^^^ help: consider using `_g_y` instead
Dec 11 13:19:57.005 INFO [stderr] 
Dec 11 13:19:57.068 INFO [stderr] warning: function is never used: `gradient_x_inner_for`
Dec 11 13:19:57.068 INFO [stderr]   --> examples/gradient.rs:53:1
Dec 11 13:19:57.068 INFO [stderr]    |
Dec 11 13:19:57.068 INFO [stderr] 53 | fn gradient_x_inner_for(mat: &DMatrix<u8>) -> DMatrix<i16> {
Dec 11 13:19:57.068 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 13:19:57.068 INFO [stderr]    |
Dec 11 13:19:57.068 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 11 13:19:57.068 INFO [stderr] 
Dec 11 13:19:57.068 INFO [stderr] warning: function is never used: `gradient_y_inner_for`
Dec 11 13:19:57.068 INFO [stderr]   --> examples/gradient.rs:66:1
Dec 11 13:19:57.068 INFO [stderr]    |
Dec 11 13:19:57.068 INFO [stderr] 66 | fn gradient_y_inner_for(mat: &DMatrix<u8>) -> DMatrix<i16> {
Dec 11 13:19:57.068 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 13:19:57.068 INFO [stderr] 
Dec 11 13:19:57.068 INFO [stderr] warning: function is never used: `gradient_x_inner_from_fn`
Dec 11 13:19:57.068 INFO [stderr]   --> examples/gradient.rs:81:1
Dec 11 13:19:57.068 INFO [stderr]    |
Dec 11 13:19:57.068 INFO [stderr] 81 | fn gradient_x_inner_from_fn(mat: &DMatrix<u8>) -> DMatrix<i16> {
Dec 11 13:19:57.068 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 13:19:57.068 INFO [stderr] 
Dec 11 13:19:57.068 INFO [stderr] warning: function is never used: `gradient_y_inner_from_fn`
Dec 11 13:19:57.068 INFO [stderr]   --> examples/gradient.rs:88:1
Dec 11 13:19:57.068 INFO [stderr]    |
Dec 11 13:19:57.068 INFO [stderr] 88 | fn gradient_y_inner_from_fn(mat: &DMatrix<u8>) -> DMatrix<i16> {
Dec 11 13:19:57.068 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 13:19:57.068 INFO [stderr] 
Dec 11 13:20:03.576 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2m 50s
Dec 11 13:20:03.596 INFO [stderr] su: No module specific data is present
Dec 11 13:20:04.204 INFO running `"docker" "inspect" "b006acde87f22657e7ca27fc6fb3ddeb971eddf7ca549bba38a542e2732e5e6d"`
Dec 11 13:20:04.454 INFO running `"docker" "rm" "-f" "b006acde87f22657e7ca27fc6fb3ddeb971eddf7ca549bba38a542e2732e5e6d"`
Dec 11 13:20:04.864 INFO [stdout] b006acde87f22657e7ca27fc6fb3ddeb971eddf7ca549bba38a542e2732e5e6d