[INFO] updating cached repository novoselov-ab/rusty-ray
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/novoselov-ab/rusty-ray
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/novoselov-ab/rusty-ray" "work/ex/clippy-test-run/sources/stable/gh/novoselov-ab/rusty-ray"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/novoselov-ab/rusty-ray'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/novoselov-ab/rusty-ray" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/novoselov-ab/rusty-ray"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/novoselov-ab/rusty-ray'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 0e3700d348ecf730f0cf9c4f90ee870044cd57b8
[INFO] sha for GitHub repo novoselov-ab/rusty-ray: 0e3700d348ecf730f0cf9c4f90ee870044cd57b8
[INFO] validating manifest of novoselov-ab/rusty-ray on toolchain stable
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of novoselov-ab/rusty-ray on toolchain stable+rustflags=-Dclippy::into_iter_on_array
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing novoselov-ab/rusty-ray
[INFO] finished frobbing novoselov-ab/rusty-ray
[INFO] frobbed toml for novoselov-ab/rusty-ray written to work/ex/clippy-test-run/sources/stable/gh/novoselov-ab/rusty-ray/Cargo.toml
[INFO] started frobbing novoselov-ab/rusty-ray
[INFO] finished frobbing novoselov-ab/rusty-ray
[INFO] frobbed toml for novoselov-ab/rusty-ray written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/novoselov-ab/rusty-ray/Cargo.toml
[INFO] crate novoselov-ab/rusty-ray has a lockfile. skipping
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] linting novoselov-ab/rusty-ray against stable for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-6/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/gh/novoselov-ab/rusty-ray:/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" "+stable" "clippy" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 9fc92eb6235c014359105b6efc876f6474be981fd20e7bd4c843aaeca7cc21ef
[INFO] running `"docker" "start" "-a" "9fc92eb6235c014359105b6efc876f6474be981fd20e7bd4c843aaeca7cc21ef"`
[INFO] [stderr]    Compiling cc v1.0.2
[INFO] [stderr]     Checking smallvec v0.4.4
[INFO] [stderr]    Compiling x11-dl v2.16.0
[INFO] [stderr]    Compiling glutin v0.10.0
[INFO] [stderr]    Compiling glium v0.18.0
[INFO] [stderr]     Checking image v0.17.0
[INFO] [stderr]     Checking wayland-window v0.8.0
[INFO] [stderr]    Compiling backtrace-sys v0.1.16
[INFO] [stderr]     Checking winit v0.8.3
[INFO] [stderr]     Checking winit v0.7.6
[INFO] [stderr]     Checking glutin v0.9.2
[INFO] [stderr]     Checking backtrace v0.3.3
[INFO] [stderr]     Checking rusty-ray v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/math/vec3.rs:14:16
[INFO] [stderr]    |
[INFO] [stderr] 14 |         Vec3 { x: x, y: y, z: z }
[INFO] [stderr]    |                ^^^^ help: replace it with: `x`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::redundant_field_names)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/math/vec3.rs:14:22
[INFO] [stderr]    |
[INFO] [stderr] 14 |         Vec3 { x: x, y: y, z: z }
[INFO] [stderr]    |                      ^^^^ help: replace it with: `y`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/math/vec3.rs:14:28
[INFO] [stderr]    |
[INFO] [stderr] 14 |         Vec3 { x: x, y: y, z: z }
[INFO] [stderr]    |                            ^^^^ help: replace it with: `z`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/math/ray.rs:12:15
[INFO] [stderr]    |
[INFO] [stderr] 12 |         Ray { origin: origin, dir: dir }
[INFO] [stderr]    |               ^^^^^^^^^^^^^^ help: replace it with: `origin`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/math/ray.rs:12:31
[INFO] [stderr]    |
[INFO] [stderr] 12 |         Ray { origin: origin, dir: dir }
[INFO] [stderr]    |                               ^^^^^^^^ help: replace it with: `dir`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: 5th binding whose name is just one char
[INFO] [stderr]   --> src/core/util.rs:39:9
[INFO] [stderr]    |
[INFO] [stderr] 39 |     let y = b as f32;
[INFO] [stderr]    |         ^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::many_single_char_names)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#many_single_char_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/core/raytracer.rs:72:13
[INFO] [stderr]    |
[INFO] [stderr] 72 |             dimensions: dimensions,
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `dimensions`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/core/scene.rs:38:47
[INFO] [stderr]    |
[INFO] [stderr] 38 |                     Some(IntersectionResult { t: t, n: normal, material: self.material.clone()})
[INFO] [stderr]    |                                               ^^^^ help: replace it with: `t`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/math/vec3.rs:14:16
[INFO] [stderr]    |
[INFO] [stderr] 14 |         Vec3 { x: x, y: y, z: z }
[INFO] [stderr]    |                ^^^^ help: replace it with: `x`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::redundant_field_names)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/math/vec3.rs:14:22
[INFO] [stderr]    |
[INFO] [stderr] 14 |         Vec3 { x: x, y: y, z: z }
[INFO] [stderr]    |                      ^^^^ help: replace it with: `y`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/math/vec3.rs:14:28
[INFO] [stderr]    |
[INFO] [stderr] 14 |         Vec3 { x: x, y: y, z: z }
[INFO] [stderr]    |                            ^^^^ help: replace it with: `z`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/math/ray.rs:12:15
[INFO] [stderr]    |
[INFO] [stderr] 12 |         Ray { origin: origin, dir: dir }
[INFO] [stderr]    |               ^^^^^^^^^^^^^^ help: replace it with: `origin`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/math/ray.rs:12:31
[INFO] [stderr]    |
[INFO] [stderr] 12 |         Ray { origin: origin, dir: dir }
[INFO] [stderr]    |                               ^^^^^^^^ help: replace it with: `dir`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: 5th binding whose name is just one char
[INFO] [stderr]   --> src/core/util.rs:39:9
[INFO] [stderr]    |
[INFO] [stderr] 39 |     let y = b as f32;
[INFO] [stderr]    |         ^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::many_single_char_names)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#many_single_char_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/core/raytracer.rs:72:13
[INFO] [stderr]    |
[INFO] [stderr] 72 |             dimensions: dimensions,
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `dimensions`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/core/scene.rs:38:47
[INFO] [stderr]    |
[INFO] [stderr] 38 |                     Some(IntersectionResult { t: t, n: normal, material: self.material.clone()})
[INFO] [stderr]    |                                               ^^^^ help: replace it with: `t`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]   --> src/support/camera.rs:40:24
[INFO] [stderr]    |
[INFO] [stderr] 40 |         let fov: f32 = 3.141592 / 2.0;
[INFO] [stderr]    |                        ^^^^^^^^ help: consider: `3.141_592`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::unreadable_literal)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]   --> src/support/mod.rs:27:49
[INFO] [stderr]    |
[INFO] [stderr] 27 |         let fixed_time_stamp = Duration::new(0, 16666667);
[INFO] [stderr]    |                                                 ^^^^^^^^ help: consider: `16_666_667`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]   --> src/support/camera.rs:40:24
[INFO] [stderr]    |
[INFO] [stderr] 40 |         let fov: f32 = 3.141592 / 2.0;
[INFO] [stderr]    |                        ^^^^^^^^ help: consider: `3.141_592`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::unreadable_literal)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]   --> src/support/mod.rs:27:49
[INFO] [stderr]    |
[INFO] [stderr] 27 |         let fixed_time_stamp = Duration::new(0, 16666667);
[INFO] [stderr]    |                                                 ^^^^^^^^ help: consider: `16_666_667`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `lerp`
[INFO] [stderr]   --> src/core/util.rs:37:1
[INFO] [stderr]    |
[INFO] [stderr] 37 | pub fn lerp(a: u8, b: u8, t: f32) -> u8 {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `lerp_rgba`
[INFO] [stderr]   --> src/core/util.rs:43:1
[INFO] [stderr]    |
[INFO] [stderr] 43 | pub fn lerp_rgba(im0: image::Rgba<u8>, im1: image::Rgba<u8>, x: f32) -> image::Rgba<u8> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: approximate value of `f{32, 64}::consts::PI` found. Consider using it directly
[INFO] [stderr]   --> src/support/camera.rs:40:24
[INFO] [stderr]    |
[INFO] [stderr] 40 |         let fov: f32 = 3.141592 / 2.0;
[INFO] [stderr]    |                        ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[deny(clippy::approx_constant)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#approx_constant
[INFO] [stderr] 
[INFO] [stderr] error: strict comparison of f32 or f64
[INFO] [stderr]    --> src/math/vec3.rs:146:17
[INFO] [stderr]     |
[INFO] [stderr] 146 |         assert!(v1.dot(v2) == 32.);
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^ help: consider comparing them within some error: `(v1.dot(v2) - 32.).abs() < error`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[deny(clippy::float_cmp)] on by default
[INFO] [stderr] note: std::f32::EPSILON and std::f64::EPSILON are available.
[INFO] [stderr]    --> src/math/vec3.rs:146:17
[INFO] [stderr]     |
[INFO] [stderr] 146 |         assert!(v1.dot(v2) == 32.);
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#float_cmp
[INFO] [stderr] 
[INFO] [stderr] error: strict comparison of f32 or f64
[INFO] [stderr]    --> src/math/vec3.rs:151:17
[INFO] [stderr]     |
[INFO] [stderr] 151 |         assert!(v1.square_length() == (1. + 2. * 2. + 3. * 3.));
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider comparing them within some error: `(v1.square_length() - ((1. + 2. * 2. + 3. * 3.))).abs() < error`
[INFO] [stderr]     |
[INFO] [stderr] note: std::f32::EPSILON and std::f64::EPSILON are available.
[INFO] [stderr]    --> src/math/vec3.rs:151:17
[INFO] [stderr]     |
[INFO] [stderr] 151 |         assert!(v1.square_length() == (1. + 2. * 2. + 3. * 3.));
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#float_cmp
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to f32 may become silently lossy if types change
[INFO] [stderr]   --> src/core/util.rs:34:15
[INFO] [stderr]    |
[INFO] [stderr] 34 |     Vec3::new((p[0] as f32) / 255.0, (p[1] as f32) / 255.0, (p[2] as f32) / 255.0)
[INFO] [stderr]    |               ^^^^^^^^^^^^^ help: try: `f32::from(p[0])`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::cast_lossless)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to f32 may become silently lossy if types change
[INFO] [stderr]   --> src/core/util.rs:34:38
[INFO] [stderr]    |
[INFO] [stderr] 34 |     Vec3::new((p[0] as f32) / 255.0, (p[1] as f32) / 255.0, (p[2] as f32) / 255.0)
[INFO] [stderr]    |                                      ^^^^^^^^^^^^^ help: try: `f32::from(p[1])`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to f32 may become silently lossy if types change
[INFO] [stderr]   --> src/core/util.rs:34:61
[INFO] [stderr]    |
[INFO] [stderr] 34 |     Vec3::new((p[0] as f32) / 255.0, (p[1] as f32) / 255.0, (p[2] as f32) / 255.0)
[INFO] [stderr]    |                                                             ^^^^^^^^^^^^^ help: try: `f32::from(p[2])`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to f32 may become silently lossy if types change
[INFO] [stderr]   --> src/core/util.rs:38:13
[INFO] [stderr]    |
[INFO] [stderr] 38 |     let x = a as f32;
[INFO] [stderr]    |             ^^^^^^^^ help: try: `f32::from(a)`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to f32 may become silently lossy if types change
[INFO] [stderr]   --> src/core/util.rs:39:13
[INFO] [stderr]    |
[INFO] [stderr] 39 |     let y = b as f32;
[INFO] [stderr]    |             ^^^^^^^^ help: try: `f32::from(b)`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] error: approximate value of `f{32, 64}::consts::PI` found. Consider using it directly
[INFO] [stderr]   --> src/core/raytracer.rs:73:18
[INFO] [stderr]    |
[INFO] [stderr] 73 |             fov: 3.14 / 3.,
[INFO] [stderr]    |                  ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#approx_constant
[INFO] [stderr] 
[INFO] [stderr] warning: manual implementation of an assign operation
[INFO] [stderr]    --> src/core/raytracer.rs:114:9
[INFO] [stderr]     |
[INFO] [stderr] 114 |         self.iters = self.iters + 1;
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `self.iters += 1`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::assign_op_pattern)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: you seem to be trying to use match for destructuring a single pattern. Consider using `if let`
[INFO] [stderr]   --> src/main.rs:91:41
[INFO] [stderr]    |
[INFO] [stderr] 91 |           events_loop.poll_events(|event| match event {
[INFO] [stderr]    |  _________________________________________^
[INFO] [stderr] 92 | |             glutin::Event::WindowEvent { event, .. } => match event {
[INFO] [stderr] 93 | |                 glutin::WindowEvent::Closed => action = support::Action::Stop,
[INFO] [stderr] 94 | |                 _ => (),
[INFO] [stderr] 95 | |             },
[INFO] [stderr] 96 | |             _ => (),
[INFO] [stderr] 97 | |         });
[INFO] [stderr]    | |_________^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::single_match)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stderr] help: try this
[INFO] [stderr]    |
[INFO] [stderr] 91 |         events_loop.poll_events(|event| if let glutin::Event::WindowEvent { event, .. } = event { match event {
[INFO] [stderr] 92 |     glutin::WindowEvent::Closed => action = support::Action::Stop,
[INFO] [stderr] 93 |     _ => (),
[INFO] [stderr] 94 | } });
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: you seem to be trying to use match for destructuring a single pattern. Consider using `if let`
[INFO] [stderr]   --> src/main.rs:92:57
[INFO] [stderr]    |
[INFO] [stderr] 92 |               glutin::Event::WindowEvent { event, .. } => match event {
[INFO] [stderr]    |  _________________________________________________________^
[INFO] [stderr] 93 | |                 glutin::WindowEvent::Closed => action = support::Action::Stop,
[INFO] [stderr] 94 | |                 _ => (),
[INFO] [stderr] 95 | |             },
[INFO] [stderr]    | |_____________^ help: try this: `if let glutin::WindowEvent::Closed = event { action = support::Action::Stop }`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 4 previous errors
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `rusty-ray`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] warning: method is never used: `cross`
[INFO] [stderr]   --> src/math/vec3.rs:25:5
[INFO] [stderr]    |
[INFO] [stderr] 25 |     pub fn cross(self, other: Self) -> Self {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `length`
[INFO] [stderr]   --> src/math/vec3.rs:58:5
[INFO] [stderr]    |
[INFO] [stderr] 58 |     pub fn length(&self) -> f32 {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `lerp`
[INFO] [stderr]   --> src/core/util.rs:37:1
[INFO] [stderr]    |
[INFO] [stderr] 37 | pub fn lerp(a: u8, b: u8, t: f32) -> u8 {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `lerp_rgba`
[INFO] [stderr]   --> src/core/util.rs:43:1
[INFO] [stderr]    |
[INFO] [stderr] 43 | pub fn lerp_rgba(im0: image::Rgba<u8>, im1: image::Rgba<u8>, x: f32) -> image::Rgba<u8> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: approximate value of `f{32, 64}::consts::PI` found. Consider using it directly
[INFO] [stderr]   --> src/support/camera.rs:40:24
[INFO] [stderr]    |
[INFO] [stderr] 40 |         let fov: f32 = 3.141592 / 2.0;
[INFO] [stderr]    |                        ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[deny(clippy::approx_constant)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#approx_constant
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to f32 may become silently lossy if types change
[INFO] [stderr]   --> src/core/util.rs:34:15
[INFO] [stderr]    |
[INFO] [stderr] 34 |     Vec3::new((p[0] as f32) / 255.0, (p[1] as f32) / 255.0, (p[2] as f32) / 255.0)
[INFO] [stderr]    |               ^^^^^^^^^^^^^ help: try: `f32::from(p[0])`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::cast_lossless)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to f32 may become silently lossy if types change
[INFO] [stderr]   --> src/core/util.rs:34:38
[INFO] [stderr]    |
[INFO] [stderr] 34 |     Vec3::new((p[0] as f32) / 255.0, (p[1] as f32) / 255.0, (p[2] as f32) / 255.0)
[INFO] [stderr]    |                                      ^^^^^^^^^^^^^ help: try: `f32::from(p[1])`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to f32 may become silently lossy if types change
[INFO] [stderr]   --> src/core/util.rs:34:61
[INFO] [stderr]    |
[INFO] [stderr] 34 |     Vec3::new((p[0] as f32) / 255.0, (p[1] as f32) / 255.0, (p[2] as f32) / 255.0)
[INFO] [stderr]    |                                                             ^^^^^^^^^^^^^ help: try: `f32::from(p[2])`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to f32 may become silently lossy if types change
[INFO] [stderr]   --> src/core/util.rs:38:13
[INFO] [stderr]    |
[INFO] [stderr] 38 |     let x = a as f32;
[INFO] [stderr]    |             ^^^^^^^^ help: try: `f32::from(a)`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to f32 may become silently lossy if types change
[INFO] [stderr]   --> src/core/util.rs:39:13
[INFO] [stderr]    |
[INFO] [stderr] 39 |     let y = b as f32;
[INFO] [stderr]    |             ^^^^^^^^ help: try: `f32::from(b)`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] error: approximate value of `f{32, 64}::consts::PI` found. Consider using it directly
[INFO] [stderr]   --> src/core/raytracer.rs:73:18
[INFO] [stderr]    |
[INFO] [stderr] 73 |             fov: 3.14 / 3.,
[INFO] [stderr]    |                  ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#approx_constant
[INFO] [stderr] 
[INFO] [stderr] warning: manual implementation of an assign operation
[INFO] [stderr]    --> src/core/raytracer.rs:114:9
[INFO] [stderr]     |
[INFO] [stderr] 114 |         self.iters = self.iters + 1;
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `self.iters += 1`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::assign_op_pattern)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: you seem to be trying to use match for destructuring a single pattern. Consider using `if let`
[INFO] [stderr]   --> src/main.rs:91:41
[INFO] [stderr]    |
[INFO] [stderr] 91 |           events_loop.poll_events(|event| match event {
[INFO] [stderr]    |  _________________________________________^
[INFO] [stderr] 92 | |             glutin::Event::WindowEvent { event, .. } => match event {
[INFO] [stderr] 93 | |                 glutin::WindowEvent::Closed => action = support::Action::Stop,
[INFO] [stderr] 94 | |                 _ => (),
[INFO] [stderr] 95 | |             },
[INFO] [stderr] 96 | |             _ => (),
[INFO] [stderr] 97 | |         });
[INFO] [stderr]    | |_________^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::single_match)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stderr] help: try this
[INFO] [stderr]    |
[INFO] [stderr] 91 |         events_loop.poll_events(|event| if let glutin::Event::WindowEvent { event, .. } = event { match event {
[INFO] [stderr] 92 |     glutin::WindowEvent::Closed => action = support::Action::Stop,
[INFO] [stderr] 93 |     _ => (),
[INFO] [stderr] 94 | } });
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: you seem to be trying to use match for destructuring a single pattern. Consider using `if let`
[INFO] [stderr]   --> src/main.rs:92:57
[INFO] [stderr]    |
[INFO] [stderr] 92 |               glutin::Event::WindowEvent { event, .. } => match event {
[INFO] [stderr]    |  _________________________________________________________^
[INFO] [stderr] 93 | |                 glutin::WindowEvent::Closed => action = support::Action::Stop,
[INFO] [stderr] 94 | |                 _ => (),
[INFO] [stderr] 95 | |             },
[INFO] [stderr]    | |_____________^ help: try this: `if let glutin::WindowEvent::Closed = event { action = support::Action::Stop }`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 2 previous errors
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `rusty-ray`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "9fc92eb6235c014359105b6efc876f6474be981fd20e7bd4c843aaeca7cc21ef"`
[INFO] running `"docker" "rm" "-f" "9fc92eb6235c014359105b6efc876f6474be981fd20e7bd4c843aaeca7cc21ef"`
[INFO] [stdout] 9fc92eb6235c014359105b6efc876f6474be981fd20e7bd4c843aaeca7cc21ef