[INFO] updating cached repository isaacazuelos/mobula
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/isaacazuelos/mobula
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/isaacazuelos/mobula" "work/ex/clippy-test-run/sources/stable/gh/isaacazuelos/mobula"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/isaacazuelos/mobula'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/isaacazuelos/mobula" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/isaacazuelos/mobula"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/isaacazuelos/mobula'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 8c5a747ea5a7a47c6fea31db513669fe428a6418
[INFO] sha for GitHub repo isaacazuelos/mobula: 8c5a747ea5a7a47c6fea31db513669fe428a6418
[INFO] validating manifest of isaacazuelos/mobula 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 isaacazuelos/mobula 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 isaacazuelos/mobula
[INFO] finished frobbing isaacazuelos/mobula
[INFO] frobbed toml for isaacazuelos/mobula written to work/ex/clippy-test-run/sources/stable/gh/isaacazuelos/mobula/Cargo.toml
[INFO] started frobbing isaacazuelos/mobula
[INFO] finished frobbing isaacazuelos/mobula
[INFO] frobbed toml for isaacazuelos/mobula written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/isaacazuelos/mobula/Cargo.toml
[INFO] crate isaacazuelos/mobula 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 isaacazuelos/mobula against stable+rustflags=-Dclippy::into_iter_on_array for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-0/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/isaacazuelos/mobula:/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 -Dclippy::into_iter_on_array" "-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] b898d72834466dfc51eb9bc79cfc49ba7430966fbc4551173f8cce63cabb626f
[INFO] running `"docker" "start" "-a" "b898d72834466dfc51eb9bc79cfc49ba7430966fbc4551173f8cce63cabb626f"`
[INFO] [stderr]     Checking mobula v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/mobula/camera.rs:46:13
[INFO] [stderr]    |
[INFO] [stderr] 46 |             u: u,
[INFO] [stderr]    |             ^^^^ help: replace it with: `u`
[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/mobula/camera.rs:47:13
[INFO] [stderr]    |
[INFO] [stderr] 47 |             v: v,
[INFO] [stderr]    |             ^^^^ help: replace it with: `v`
[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/mobula/material.rs:25:29
[INFO] [stderr]    |
[INFO] [stderr] 25 |                             fuzz: fuzz,
[INFO] [stderr]    |                             ^^^^^^^^^^ help: replace it with: `fuzz`
[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/mobula/material.rs:30:43
[INFO] [stderr]    |
[INFO] [stderr] 30 |         Material::Dialectric(Dialectric { refractive_index: refractive_index })
[INFO] [stderr]    |                                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `refractive_index`
[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/mobula/point.rs:28:17
[INFO] [stderr]    |
[INFO] [stderr] 28 |         Point { x: x, y: y, z: z }
[INFO] [stderr]    |                 ^^^^ help: replace it with: `x`
[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/mobula/point.rs:28:23
[INFO] [stderr]    |
[INFO] [stderr] 28 |         Point { 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/mobula/point.rs:28:29
[INFO] [stderr]    |
[INFO] [stderr] 28 |         Point { 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/mobula/ray.rs:15:13
[INFO] [stderr]    |
[INFO] [stderr] 15 |             origin: origin,
[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/mobula/ray.rs:16:13
[INFO] [stderr]    |
[INFO] [stderr] 16 |             direction: direction,
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^ help: replace it with: `direction`
[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/mobula/v3.rs:17:14
[INFO] [stderr]    |
[INFO] [stderr] 17 |         V3 { x: x, y: y, z: z }
[INFO] [stderr]    |              ^^^^ help: replace it with: `x`
[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/mobula/v3.rs:17:20
[INFO] [stderr]    |
[INFO] [stderr] 17 |         V3 { 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/mobula/v3.rs:17:26
[INFO] [stderr]    |
[INFO] [stderr] 17 |         V3 { 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/mobula/shape/sphere.rs:16:13
[INFO] [stderr]    |
[INFO] [stderr] 16 |             centre: centre,
[INFO] [stderr]    |             ^^^^^^^^^^^^^^ help: replace it with: `centre`
[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/mobula/shape/sphere.rs:17:13
[INFO] [stderr]    |
[INFO] [stderr] 17 |             radius: radius,
[INFO] [stderr]    |             ^^^^^^^^^^^^^^ help: replace it with: `radius`
[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/mobula/shape/sphere.rs:18:13
[INFO] [stderr]    |
[INFO] [stderr] 18 |             material: material,
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^ help: replace it with: `material`
[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/mobula/camera.rs:46:13
[INFO] [stderr]    |
[INFO] [stderr] 46 |             u: u,
[INFO] [stderr]    |             ^^^^ help: replace it with: `u`
[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/mobula/camera.rs:47:13
[INFO] [stderr]    |
[INFO] [stderr] 47 |             v: v,
[INFO] [stderr]    |             ^^^^ help: replace it with: `v`
[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/mobula/material.rs:25:29
[INFO] [stderr]    |
[INFO] [stderr] 25 |                             fuzz: fuzz,
[INFO] [stderr]    |                             ^^^^^^^^^^ help: replace it with: `fuzz`
[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/mobula/material.rs:30:43
[INFO] [stderr]    |
[INFO] [stderr] 30 |         Material::Dialectric(Dialectric { refractive_index: refractive_index })
[INFO] [stderr]    |                                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `refractive_index`
[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/mobula/point.rs:28:17
[INFO] [stderr]    |
[INFO] [stderr] 28 |         Point { x: x, y: y, z: z }
[INFO] [stderr]    |                 ^^^^ help: replace it with: `x`
[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/mobula/point.rs:28:23
[INFO] [stderr]    |
[INFO] [stderr] 28 |         Point { 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/mobula/point.rs:28:29
[INFO] [stderr]    |
[INFO] [stderr] 28 |         Point { 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/mobula/ray.rs:15:13
[INFO] [stderr]    |
[INFO] [stderr] 15 |             origin: origin,
[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/mobula/ray.rs:16:13
[INFO] [stderr]    |
[INFO] [stderr] 16 |             direction: direction,
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^ help: replace it with: `direction`
[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/mobula/v3.rs:17:14
[INFO] [stderr]    |
[INFO] [stderr] 17 |         V3 { x: x, y: y, z: z }
[INFO] [stderr]    |              ^^^^ help: replace it with: `x`
[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/mobula/v3.rs:17:20
[INFO] [stderr]    |
[INFO] [stderr] 17 |         V3 { 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/mobula/v3.rs:17:26
[INFO] [stderr]    |
[INFO] [stderr] 17 |         V3 { 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/mobula/shape/sphere.rs:16:13
[INFO] [stderr]    |
[INFO] [stderr] 16 |             centre: centre,
[INFO] [stderr]    |             ^^^^^^^^^^^^^^ help: replace it with: `centre`
[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/mobula/shape/sphere.rs:17:13
[INFO] [stderr]    |
[INFO] [stderr] 17 |             radius: radius,
[INFO] [stderr]    |             ^^^^^^^^^^^^^^ help: replace it with: `radius`
[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/mobula/shape/sphere.rs:18:13
[INFO] [stderr]    |
[INFO] [stderr] 18 |             material: material,
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^ help: replace it with: `material`
[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: this argument is passed by reference, but would be more efficient if passed by value
[INFO] [stderr]    --> src/mobula/material.rs:100:16
[INFO] [stderr]     |
[INFO] [stderr] 100 |     fn schlick(&self, cosine: f64) -> f64 {
[INFO] [stderr]     |                ^^^^^ help: consider passing by value instead: `self`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::trivially_copy_pass_by_ref)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#trivially_copy_pass_by_ref
[INFO] [stderr] 
[INFO] [stderr] warning: `if _ { .. } else { .. }` is an expression
[INFO] [stderr]    --> src/mobula/material.rs:114:9
[INFO] [stderr]     |
[INFO] [stderr] 114 | /         let cosine: f64;
[INFO] [stderr] 115 | |
[INFO] [stderr] 116 | |         if ray.direction().dot(hit.normal) > 0.0 {
[INFO] [stderr] 117 | |             outward_normal = -hit.normal;
[INFO] [stderr] ...   |
[INFO] [stderr] 124 | |             cosine = -ray.direction().dot(hit.normal) / ray.direction().magnitude().powf(2.0);
[INFO] [stderr] 125 | |         }
[INFO] [stderr]     | |_________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::useless_let_if_seq)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_let_if_seq
[INFO] [stderr] help: it is more idiomatic to write
[INFO] [stderr]     |
[INFO] [stderr] 114 |         let cosine = if ray.direction().dot(hit.normal) > 0.0 { ..; self.refractive_index * ray.direction().dot(hit.normal) /
[INFO] [stderr] 115 |                      ray.direction().magnitude().powf(2.0) } else { ..; -ray.direction().dot(hit.normal) / ray.direction().magnitude().powf(2.0) };
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]  --> src/mobula/world.rs:6:27
[INFO] [stderr]   |
[INFO] [stderr] 6 | pub fn nearest_hit(world: &World, ray: &Ray, t_min: f64, t_max: f64) -> Option<Hit> {
[INFO] [stderr]   |                           ^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(clippy::ptr_arg)] on by default
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]   --> src/main.rs:42:28
[INFO] [stderr]    |
[INFO] [stderr] 42 | fn colour(ray: Ray, world: &World, depth: u32) -> V3 {
[INFO] [stderr]    |                            ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] warning: casting u32 to f64 may become silently lossy if types change
[INFO] [stderr]   --> src/main.rs:85:30
[INFO] [stderr]    |
[INFO] [stderr] 85 |                              IMAGE_WIDTH as f64 / IMAGE_HEIGHT as f64,
[INFO] [stderr]    |                              ^^^^^^^^^^^^^^^^^^ help: try: `f64::from(IMAGE_WIDTH)`
[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 u32 to f64 may become silently lossy if types change
[INFO] [stderr]   --> src/main.rs:85:51
[INFO] [stderr]    |
[INFO] [stderr] 85 |                              IMAGE_WIDTH as f64 / IMAGE_HEIGHT as f64,
[INFO] [stderr]    |                                                   ^^^^^^^^^^^^^^^^^^^ help: try: `f64::from(IMAGE_HEIGHT)`
[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 u32 to f64 may become silently lossy if types change
[INFO] [stderr]    --> src/main.rs:111:17
[INFO] [stderr]     |
[INFO] [stderr] 111 |         let u = (i as f64) / (IMAGE_WIDTH as f64);
[INFO] [stderr]     |                 ^^^^^^^^^^ help: try: `f64::from(i)`
[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 u32 to f64 may become silently lossy if types change
[INFO] [stderr]    --> src/main.rs:111:30
[INFO] [stderr]     |
[INFO] [stderr] 111 |         let u = (i as f64) / (IMAGE_WIDTH as f64);
[INFO] [stderr]     |                              ^^^^^^^^^^^^^^^^^^^^ help: try: `f64::from(IMAGE_WIDTH)`
[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 u32 to f64 may become silently lossy if types change
[INFO] [stderr]    --> src/main.rs:112:17
[INFO] [stderr]     |
[INFO] [stderr] 112 |         let v = ((IMAGE_HEIGHT - j) as f64) / (IMAGE_HEIGHT as f64);
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `f64::from(IMAGE_HEIGHT - j)`
[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 u32 to f64 may become silently lossy if types change
[INFO] [stderr]    --> src/main.rs:112:47
[INFO] [stderr]     |
[INFO] [stderr] 112 |         let v = ((IMAGE_HEIGHT - j) as f64) / (IMAGE_HEIGHT as f64);
[INFO] [stderr]     |                                               ^^^^^^^^^^^^^^^^^^^^^ help: try: `f64::from(IMAGE_HEIGHT)`
[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 u32 to f64 may become silently lossy if types change
[INFO] [stderr]    --> src/main.rs:116:52
[INFO] [stderr]     |
[INFO] [stderr] 116 |             let h_sample = rand::random::<f64>() / (IMAGE_WIDTH as f64);
[INFO] [stderr]     |                                                    ^^^^^^^^^^^^^^^^^^^^ help: try: `f64::from(IMAGE_WIDTH)`
[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: this argument is passed by reference, but would be more efficient if passed by value
[INFO] [stderr] warning: casting u32 to f64 may become silently lossy if types change
[INFO] [stderr]    --> src/main.rs:117:52
[INFO] [stderr]     |
[INFO] [stderr]    --> src/mobula/material.rs:100:16
[INFO] [stderr] 117 |             let v_sample = rand::random::<f64>() / (IMAGE_HEIGHT as f64);
[INFO] [stderr]     |
[INFO] [stderr]     |                                                    ^^^^^^^^^^^^^^^^^^^^^ help: try: `f64::from(IMAGE_HEIGHT)`
[INFO] [stderr] 100 |     fn schlick(&self, cosine: f64) -> f64 {
[INFO] [stderr]     |                ^^^^^ help: consider passing by value instead: `self`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::trivially_copy_pass_by_ref)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#trivially_copy_pass_by_ref
[INFO] [stderr] 
[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 u32 to f64 may become silently lossy if types change
[INFO] [stderr]    --> src/main.rs:121:27
[INFO] [stderr]     |
[INFO] [stderr] 121 |         c = c.scale(1.0 / (SAMPLES as f64));
[INFO] [stderr]     |                           ^^^^^^^^^^^^^^^^ help: try: `f64::from(SAMPLES)`
[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: `if _ { .. } else { .. }` is an expression
[INFO] [stderr]    --> src/mobula/material.rs:114:9
[INFO] [stderr]     |
[INFO] [stderr] 114 | /         let cosine: f64;
[INFO] [stderr] 115 | |
[INFO] [stderr] 116 | |         if ray.direction().dot(hit.normal) > 0.0 {
[INFO] [stderr] 117 | |             outward_normal = -hit.normal;
[INFO] [stderr] ...   |
[INFO] [stderr] 124 | |             cosine = -ray.direction().dot(hit.normal) / ray.direction().magnitude().powf(2.0);
[INFO] [stderr] 125 | |         }
[INFO] [stderr]     | |_________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::useless_let_if_seq)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_let_if_seq
[INFO] [stderr] help: it is more idiomatic to write
[INFO] [stderr]     |
[INFO] [stderr] 114 |         let cosine = if ray.direction().dot(hit.normal) > 0.0 { ..; self.refractive_index * ray.direction().dot(hit.normal) /
[INFO] [stderr] 115 |                      ray.direction().magnitude().powf(2.0) } else { ..; -ray.direction().dot(hit.normal) / ray.direction().magnitude().powf(2.0) };
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]  --> src/mobula/world.rs:6:27
[INFO] [stderr]   |
[INFO] [stderr] 6 | pub fn nearest_hit(world: &World, ray: &Ray, t_min: f64, t_max: f64) -> Option<Hit> {
[INFO] [stderr]   |                           ^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(clippy::ptr_arg)] on by default
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]   --> src/main.rs:42:28
[INFO] [stderr]    |
[INFO] [stderr] 42 | fn colour(ray: Ray, world: &World, depth: u32) -> V3 {
[INFO] [stderr]    |                            ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] warning: casting u32 to f64 may become silently lossy if types change
[INFO] [stderr]   --> src/main.rs:85:30
[INFO] [stderr]    |
[INFO] [stderr] 85 |                              IMAGE_WIDTH as f64 / IMAGE_HEIGHT as f64,
[INFO] [stderr]    |                              ^^^^^^^^^^^^^^^^^^ help: try: `f64::from(IMAGE_WIDTH)`
[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 u32 to f64 may become silently lossy if types change
[INFO] [stderr]   --> src/main.rs:85:51
[INFO] [stderr]    |
[INFO] [stderr] 85 |                              IMAGE_WIDTH as f64 / IMAGE_HEIGHT as f64,
[INFO] [stderr]    |                                                   ^^^^^^^^^^^^^^^^^^^ help: try: `f64::from(IMAGE_HEIGHT)`
[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 u32 to f64 may become silently lossy if types change
[INFO] [stderr]    --> src/main.rs:111:17
[INFO] [stderr]     |
[INFO] [stderr] 111 |         let u = (i as f64) / (IMAGE_WIDTH as f64);
[INFO] [stderr]     |                 ^^^^^^^^^^ help: try: `f64::from(i)`
[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 u32 to f64 may become silently lossy if types change
[INFO] [stderr]    --> src/main.rs:111:30
[INFO] [stderr]     |
[INFO] [stderr] 111 |         let u = (i as f64) / (IMAGE_WIDTH as f64);
[INFO] [stderr]     |                              ^^^^^^^^^^^^^^^^^^^^ help: try: `f64::from(IMAGE_WIDTH)`
[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 u32 to f64 may become silently lossy if types change
[INFO] [stderr]    --> src/main.rs:112:17
[INFO] [stderr]     |
[INFO] [stderr] 112 |         let v = ((IMAGE_HEIGHT - j) as f64) / (IMAGE_HEIGHT as f64);
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `f64::from(IMAGE_HEIGHT - j)`
[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 u32 to f64 may become silently lossy if types change
[INFO] [stderr]    --> src/main.rs:112:47
[INFO] [stderr]     |
[INFO] [stderr] 112 |         let v = ((IMAGE_HEIGHT - j) as f64) / (IMAGE_HEIGHT as f64);
[INFO] [stderr]     |                                               ^^^^^^^^^^^^^^^^^^^^^ help: try: `f64::from(IMAGE_HEIGHT)`
[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 u32 to f64 may become silently lossy if types change
[INFO] [stderr]    --> src/main.rs:116:52
[INFO] [stderr]     |
[INFO] [stderr] 116 |             let h_sample = rand::random::<f64>() / (IMAGE_WIDTH as f64);
[INFO] [stderr]     |                                                    ^^^^^^^^^^^^^^^^^^^^ help: try: `f64::from(IMAGE_WIDTH)`
[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 u32 to f64 may become silently lossy if types change
[INFO] [stderr]    --> src/main.rs:117:52
[INFO] [stderr]     |
[INFO] [stderr] 117 |             let v_sample = rand::random::<f64>() / (IMAGE_HEIGHT as f64);
[INFO] [stderr]     |                                                    ^^^^^^^^^^^^^^^^^^^^^ help: try: `f64::from(IMAGE_HEIGHT)`
[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 u32 to f64 may become silently lossy if types change
[INFO] [stderr]    --> src/main.rs:121:27
[INFO] [stderr]     |
[INFO] [stderr] 121 |         c = c.scale(1.0 / (SAMPLES as f64));
[INFO] [stderr]     |                           ^^^^^^^^^^^^^^^^ help: try: `f64::from(SAMPLES)`
[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]     Finished dev [unoptimized + debuginfo] target(s) in 1.16s
[INFO] running `"docker" "inspect" "b898d72834466dfc51eb9bc79cfc49ba7430966fbc4551173f8cce63cabb626f"`
[INFO] running `"docker" "rm" "-f" "b898d72834466dfc51eb9bc79cfc49ba7430966fbc4551173f8cce63cabb626f"`
[INFO] [stdout] b898d72834466dfc51eb9bc79cfc49ba7430966fbc4551173f8cce63cabb626f