Dec 04 13:47:15.982 INFO checking mpizenberg/computer-vision-rs against try#1df97983eb2057dc6a8f7eb364e263b51ae23230 for pr-56481
Dec 04 13:47:15.982 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-4/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-56481/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/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 +1df97983eb2057dc6a8f7eb364e263b51ae23230-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 04 13:47:16.488 INFO [stdout] bd18918d6e32a4dffb5adda05d67538d872f2fe1027f9965a0d2aa27ef6973ef
Dec 04 13:47:16.492 INFO running `"docker" "start" "-a" "bd18918d6e32a4dffb5adda05d67538d872f2fe1027f9965a0d2aa27ef6973ef"`
Dec 04 13:47:17.339 INFO [stderr] usermod: no changes
Dec 04 13:47:17.728 INFO [stderr]    Compiling proc-macro2 v0.3.8
Dec 04 13:47:17.751 INFO [stderr]     Checking atty v0.2.10
Dec 04 13:47:17.752 INFO [stderr]     Checking petgraph v0.4.12
Dec 04 13:47:17.752 INFO [stderr]     Checking rand v0.5.1
Dec 04 13:47:17.761 INFO [stderr]     Checking tempfile v3.0.2
Dec 04 13:47:17.761 INFO [stderr]     Checking aho-corasick v0.6.6
Dec 04 13:47:17.761 INFO [stderr]     Checking nom v4.0.0
Dec 04 13:47:17.762 INFO [stderr]     Checking backtrace-sys v0.1.23
Dec 04 13:47:18.853 INFO [stderr]    Compiling syn v0.14.2
Dec 04 13:47:18.923 INFO [stderr]     Checking x11-dl v2.17.5
Dec 04 13:47:19.567 INFO [stderr]     Checking num-integer v0.1.36
Dec 04 13:47:20.368 INFO [stderr]     Checking num-complex v0.2.0
Dec 04 13:47:22.680 INFO [stderr]     Checking approx v0.2.0
Dec 04 13:47:26.361 INFO [stderr]     Checking serde_json v1.0.13
Dec 04 13:47:26.470 INFO [stderr]     Checking generic-array v0.11.0
Dec 04 13:47:26.578 INFO [stderr]    Compiling glutin v0.14.0
Dec 04 13:47:29.551 INFO [stderr]    Compiling glium v0.21.0
Dec 04 13:47:30.031 INFO [stderr]     Checking backtrace v0.3.8
Dec 04 13:47:30.159 INFO [stderr]     Checking rayon-core v1.4.0
Dec 04 13:47:31.531 INFO [stderr]     Checking regex v1.0.1
Dec 04 13:47:33.467 INFO [stderr]     Checking ordered-float v0.5.0
Dec 04 13:47:45.289 INFO [stderr]     Checking num-bigint v0.1.44
Dec 04 13:47:45.308 INFO [stderr]     Checking num-iter v0.1.35
Dec 04 13:47:45.315 INFO [stderr]     Checking alga v0.6.0
Dec 04 13:47:45.600 INFO [stderr]    Compiling quote v0.5.2
Dec 04 13:47:46.327 INFO [stderr]     Checking wayland-sys v0.12.5
Dec 04 13:47:47.403 INFO [stderr]     Checking daggy v0.5.0
Dec 04 13:47:49.088 INFO [stderr]     Checking rayon v1.0.1
Dec 04 13:47:49.199 INFO [stderr]     Checking rusttype v0.5.2
Dec 04 13:47:49.819 INFO [stderr]    Compiling num-derive v0.2.2
Dec 04 13:47:49.863 INFO [stderr]     Checking png v0.12.0
Dec 04 13:47:51.427 INFO [stderr]    Compiling syn v0.13.11
Dec 04 13:47:52.136 INFO [stderr]     Checking pistoncore-input v0.21.0
Dec 04 13:47:58.639 INFO [stderr]     Checking wayland-client v0.12.5
Dec 04 13:48:00.144 INFO [stderr]     Checking env_logger v0.5.10
Dec 04 13:48:06.456 INFO [stderr]     Checking num-rational v0.1.42
Dec 04 13:48:10.563 INFO [stderr]     Checking quickcheck v0.6.2
Dec 04 13:48:10.659 INFO [stderr]     Checking nalgebra v0.15.3
Dec 04 13:48:11.667 INFO [stderr]     Checking wayland-protocols v0.12.5
Dec 04 13:48:14.807 INFO [stderr]     Checking wayland-kbd v0.13.1
Dec 04 13:48:19.407 INFO [stderr]     Checking num v0.1.42
Dec 04 13:48:21.103 INFO [stderr]     Checking jpeg-decoder v0.1.14
Dec 04 13:48:27.731 INFO [stderr]     Checking image v0.19.0
Dec 04 13:48:32.243 INFO [stderr]     Checking wayland-window v0.13.3
Dec 04 13:48:35.317 INFO [stderr]     Checking winit v0.12.0
Dec 04 13:48:59.686 INFO [stderr]    Compiling conrod_derive v0.1.2
Dec 04 13:49:20.259 INFO [stderr]     Checking conrod v0.60.0
Dec 04 13:49:34.767 INFO [stderr]     Checking computer-vision-rs v0.1.0 (/source)
Dec 04 13:49:46.603 INFO [stderr] warning: function is never used: `half_gradients`
Dec 04 13:49:46.603 INFO [stderr]   --> examples/gradient_pyramid.rs:90:1
Dec 04 13:49:46.603 INFO [stderr]    |
Dec 04 13:49:46.603 INFO [stderr] 90 | fn half_gradients(mat: &DMatrix<u8>) -> DMatrix<(i16, i16, u16)> {
Dec 04 13:49:46.603 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 13:49:46.603 INFO [stderr]    |
Dec 04 13:49:46.603 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 04 13:49:46.603 INFO [stderr] 
Dec 04 13:49:49.587 INFO [stderr] warning: unused variable: `g_x`
Dec 04 13:49:49.587 INFO [stderr]   --> examples/gradient.rs:23:14
Dec 04 13:49:49.587 INFO [stderr]    |
Dec 04 13:49:49.587 INFO [stderr] 23 |         let (g_x, g_y) = gradient_2(&img_matrix);
Dec 04 13:49:49.587 INFO [stderr]    |              ^^^ help: consider using `_g_x` instead
Dec 04 13:49:49.599 INFO [stderr]    |
Dec 04 13:49:49.599 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 04 13:49:49.599 INFO [stderr] 
Dec 04 13:49:49.599 INFO [stderr] warning: unused variable: `g_y`
Dec 04 13:49:49.599 INFO [stderr]   --> examples/gradient.rs:23:19
Dec 04 13:49:49.599 INFO [stderr]    |
Dec 04 13:49:49.599 INFO [stderr] 23 |         let (g_x, g_y) = gradient_2(&img_matrix);
Dec 04 13:49:49.599 INFO [stderr]    |                   ^^^ help: consider using `_g_y` instead
Dec 04 13:49:49.599 INFO [stderr] 
Dec 04 13:49:49.739 INFO [stderr] warning: function is never used: `gradient_x_inner_for`
Dec 04 13:49:49.739 INFO [stderr]   --> examples/gradient.rs:53:1
Dec 04 13:49:49.739 INFO [stderr]    |
Dec 04 13:49:49.739 INFO [stderr] 53 | fn gradient_x_inner_for(mat: &DMatrix<u8>) -> DMatrix<i16> {
Dec 04 13:49:49.739 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 13:49:49.759 INFO [stderr]    |
Dec 04 13:49:49.759 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 04 13:49:49.759 INFO [stderr] 
Dec 04 13:49:49.759 INFO [stderr] warning: function is never used: `gradient_y_inner_for`
Dec 04 13:49:49.759 INFO [stderr]   --> examples/gradient.rs:66:1
Dec 04 13:49:49.759 INFO [stderr]    |
Dec 04 13:49:49.759 INFO [stderr] 66 | fn gradient_y_inner_for(mat: &DMatrix<u8>) -> DMatrix<i16> {
Dec 04 13:49:49.759 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 13:49:49.759 INFO [stderr] 
Dec 04 13:49:49.759 INFO [stderr] warning: function is never used: `gradient_x_inner_from_fn`
Dec 04 13:49:49.759 INFO [stderr]   --> examples/gradient.rs:81:1
Dec 04 13:49:49.759 INFO [stderr]    |
Dec 04 13:49:49.759 INFO [stderr] 81 | fn gradient_x_inner_from_fn(mat: &DMatrix<u8>) -> DMatrix<i16> {
Dec 04 13:49:49.759 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 13:49:49.759 INFO [stderr] 
Dec 04 13:49:49.759 INFO [stderr] warning: function is never used: `gradient_y_inner_from_fn`
Dec 04 13:49:49.759 INFO [stderr]   --> examples/gradient.rs:88:1
Dec 04 13:49:49.759 INFO [stderr]    |
Dec 04 13:49:49.759 INFO [stderr] 88 | fn gradient_y_inner_from_fn(mat: &DMatrix<u8>) -> DMatrix<i16> {
Dec 04 13:49:49.759 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 13:49:49.759 INFO [stderr] 
Dec 04 13:49:53.187 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2m 35s
Dec 04 13:49:53.204 INFO [stderr] su: No module specific data is present
Dec 04 13:49:53.917 INFO running `"docker" "inspect" "bd18918d6e32a4dffb5adda05d67538d872f2fe1027f9965a0d2aa27ef6973ef"`
Dec 04 13:49:54.223 INFO running `"docker" "rm" "-f" "bd18918d6e32a4dffb5adda05d67538d872f2fe1027f9965a0d2aa27ef6973ef"`
Dec 04 13:49:54.491 INFO [stdout] bd18918d6e32a4dffb5adda05d67538d872f2fe1027f9965a0d2aa27ef6973ef