[INFO] updating cached repository mpizenberg/computer-vision-rs
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/mpizenberg/computer-vision-rs
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/mpizenberg/computer-vision-rs" "work/ex/pr-58948/sources/master#0f88167f89fffe321590c5148f21b7d51d44388d/gh/mpizenberg/computer-vision-rs"`
[INFO] [stderr] Cloning into 'work/ex/pr-58948/sources/master#0f88167f89fffe321590c5148f21b7d51d44388d/gh/mpizenberg/computer-vision-rs'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/mpizenberg/computer-vision-rs" "work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/gh/mpizenberg/computer-vision-rs"`
[INFO] [stderr] Cloning into 'work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/gh/mpizenberg/computer-vision-rs'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 121852e4982902629d1ad6533c6257fe97bd4500
[INFO] sha for GitHub repo mpizenberg/computer-vision-rs: 121852e4982902629d1ad6533c6257fe97bd4500
[INFO] validating manifest of mpizenberg/computer-vision-rs on toolchain master#0f88167f89fffe321590c5148f21b7d51d44388d
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+0f88167f89fffe321590c5148f21b7d51d44388d-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of mpizenberg/computer-vision-rs on toolchain try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing mpizenberg/computer-vision-rs
[INFO] finished frobbing mpizenberg/computer-vision-rs
[INFO] frobbed toml for mpizenberg/computer-vision-rs written to work/ex/pr-58948/sources/master#0f88167f89fffe321590c5148f21b7d51d44388d/gh/mpizenberg/computer-vision-rs/Cargo.toml
[INFO] started frobbing mpizenberg/computer-vision-rs
[INFO] finished frobbing mpizenberg/computer-vision-rs
[INFO] frobbed toml for mpizenberg/computer-vision-rs written to work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/gh/mpizenberg/computer-vision-rs/Cargo.toml
[INFO] crate mpizenberg/computer-vision-rs already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+0f88167f89fffe321590c5148f21b7d51d44388d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking mpizenberg/computer-vision-rs against master#0f88167f89fffe321590c5148f21b7d51d44388d for pr-58948
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-58948/worker-1/master#0f88167f89fffe321590c5148f21b7d51d44388d:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-58948/sources/master#0f88167f89fffe321590c5148f21b7d51d44388d/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" "+0f88167f89fffe321590c5148f21b7d51d44388d-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 4d06724cedba9be6ad2941bc9246f1ec0aceb230599fb06ab6b8ffeb5229a32b
[INFO] running `"docker" "start" "-a" "4d06724cedba9be6ad2941bc9246f1ec0aceb230599fb06ab6b8ffeb5229a32b"`
[INFO] [stderr]    Compiling num-complex v0.2.0
[INFO] [stderr]     Checking serde v1.0.35
[INFO] [stderr]     Checking atty v0.2.10
[INFO] [stderr]     Checking rand v0.5.1
[INFO] [stderr]     Checking tempfile v3.0.2
[INFO] [stderr]     Checking aho-corasick v0.6.6
[INFO] [stderr]     Checking nom v4.0.0
[INFO] [stderr]     Checking backtrace-sys v0.1.23
[INFO] [stderr]    Compiling gl_generator v0.9.0
[INFO] [stderr]    Compiling syn v0.14.2
[INFO] [stderr]     Checking num-integer v0.1.36
[INFO] [stderr]     Checking approx v0.2.0
[INFO] [stderr]     Checking x11-dl v2.17.5
[INFO] [stderr]     Checking generic-array v0.11.0
[INFO] [stderr]     Checking backtrace v0.3.8
[INFO] [stderr]    Compiling serde_derive_internals v0.22.1
[INFO] [stderr]     Checking regex v1.0.1
[INFO] [stderr]     Checking num-bigint v0.1.44
[INFO] [stderr]     Checking num-iter v0.1.35
[INFO] [stderr]     Checking wayland-sys v0.12.5
[INFO] [stderr]     Checking rusttype v0.5.2
[INFO] [stderr]     Checking env_logger v0.5.10
[INFO] [stderr]     Checking num-rational v0.1.42
[INFO] [stderr]    Compiling glutin v0.14.0
[INFO] [stderr]    Compiling glium v0.21.0
[INFO] [stderr]    Compiling serde_derive v1.0.35
[INFO] [stderr]     Checking jpeg-decoder v0.1.14
[INFO] [stderr]     Checking png v0.12.0
[INFO] [stderr]    Compiling num-derive v0.2.2
[INFO] [stderr]     Checking wayland-client v0.12.5
[INFO] [stderr]     Checking quickcheck v0.6.2
[INFO] [stderr]     Checking num v0.1.42
[INFO] [stderr]     Checking alga v0.6.0
[INFO] [stderr]     Checking image v0.19.0
[INFO] [stderr]     Checking wayland-protocols v0.12.5
[INFO] [stderr]     Checking wayland-kbd v0.13.1
[INFO] [stderr]     Checking serde_json v1.0.13
[INFO] [stderr]     Checking nalgebra v0.15.3
[INFO] [stderr]     Checking wayland-window v0.13.3
[INFO] [stderr]     Checking winit v0.12.0
[INFO] [stderr]     Checking pistoncore-input v0.21.0
[INFO] [stderr]     Checking conrod v0.60.0
[INFO] [stderr]     Checking computer-vision-rs v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: function is never used: `half_gradients`
[INFO] [stderr]   --> examples/gradient_pyramid.rs:90:1
[INFO] [stderr]    |
[INFO] [stderr] 90 | fn half_gradients(mat: &DMatrix<u8>) -> DMatrix<(i16, i16, u16)> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `g_x`
[INFO] [stderr]   --> examples/gradient.rs:23:14
[INFO] [stderr]    |
[INFO] [stderr] 23 |         let (g_x, g_y) = gradient_2(&img_matrix);
[INFO] [stderr]    |              ^^^ help: consider prefixing with an underscore: `_g_x`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `g_y`
[INFO] [stderr]   --> examples/gradient.rs:23:19
[INFO] [stderr]    |
[INFO] [stderr] 23 |         let (g_x, g_y) = gradient_2(&img_matrix);
[INFO] [stderr]    |                   ^^^ help: consider prefixing with an underscore: `_g_y`
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `gradient_x_inner_for`
[INFO] [stderr]   --> examples/gradient.rs:53:1
[INFO] [stderr]    |
[INFO] [stderr] 53 | fn gradient_x_inner_for(mat: &DMatrix<u8>) -> DMatrix<i16> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `gradient_y_inner_for`
[INFO] [stderr]   --> examples/gradient.rs:66:1
[INFO] [stderr]    |
[INFO] [stderr] 66 | fn gradient_y_inner_for(mat: &DMatrix<u8>) -> DMatrix<i16> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `gradient_x_inner_from_fn`
[INFO] [stderr]   --> examples/gradient.rs:81:1
[INFO] [stderr]    |
[INFO] [stderr] 81 | fn gradient_x_inner_from_fn(mat: &DMatrix<u8>) -> DMatrix<i16> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `gradient_y_inner_from_fn`
[INFO] [stderr]   --> examples/gradient.rs:88:1
[INFO] [stderr]    |
[INFO] [stderr] 88 | fn gradient_y_inner_from_fn(mat: &DMatrix<u8>) -> DMatrix<i16> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2m 28s
[INFO] running `"docker" "inspect" "4d06724cedba9be6ad2941bc9246f1ec0aceb230599fb06ab6b8ffeb5229a32b"`
[INFO] running `"docker" "rm" "-f" "4d06724cedba9be6ad2941bc9246f1ec0aceb230599fb06ab6b8ffeb5229a32b"`
[INFO] [stdout] 4d06724cedba9be6ad2941bc9246f1ec0aceb230599fb06ab6b8ffeb5229a32b