[INFO] updating cached repository Bestra/rust-weekend-raytracer
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/Bestra/rust-weekend-raytracer
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/Bestra/rust-weekend-raytracer" "work/ex/clippy-test-run/sources/stable/gh/Bestra/rust-weekend-raytracer"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/Bestra/rust-weekend-raytracer'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/Bestra/rust-weekend-raytracer" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/Bestra/rust-weekend-raytracer"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/Bestra/rust-weekend-raytracer'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 2f4b9903d037396543bc4eba270de1dbce31f7a7
[INFO] sha for GitHub repo Bestra/rust-weekend-raytracer: 2f4b9903d037396543bc4eba270de1dbce31f7a7
[INFO] validating manifest of Bestra/rust-weekend-raytracer 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 Bestra/rust-weekend-raytracer 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 Bestra/rust-weekend-raytracer
[INFO] finished frobbing Bestra/rust-weekend-raytracer
[INFO] frobbed toml for Bestra/rust-weekend-raytracer written to work/ex/clippy-test-run/sources/stable/gh/Bestra/rust-weekend-raytracer/Cargo.toml
[INFO] started frobbing Bestra/rust-weekend-raytracer
[INFO] finished frobbing Bestra/rust-weekend-raytracer
[INFO] frobbed toml for Bestra/rust-weekend-raytracer written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/Bestra/rust-weekend-raytracer/Cargo.toml
[INFO] crate Bestra/rust-weekend-raytracer 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 Bestra/rust-weekend-raytracer against stable for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-1/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/gh/Bestra/rust-weekend-raytracer:/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] 30dd78fd35b5d3848841c6edf14c3ba157591d61f8e837f65551b79886eea842
[INFO] running `"docker" "start" "-a" "30dd78fd35b5d3848841c6edf14c3ba157591d61f8e837f65551b79886eea842"`
[INFO] [stderr]     Checking rand v0.5.0
[INFO] [stderr]     Checking png v0.11.0
[INFO] [stderr]     Checking rayon-core v1.4.0
[INFO] [stderr]     Checking rayon v1.0.1
[INFO] [stderr]     Checking weekend-raytracer v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: 5th binding whose name is just one char
[INFO] [stderr]   --> src/geo.rs:56:21
[INFO] [stderr]    |
[INFO] [stderr] 56 |                 let t = temp_minus;
[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: 6th binding whose name is just one char
[INFO] [stderr]   --> src/geo.rs:57:21
[INFO] [stderr]    |
[INFO] [stderr] 57 |                 let p = r.point_at_parameter(t);
[INFO] [stderr]    |                     ^
[INFO] [stderr]    |
[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: 5th binding whose name is just one char
[INFO] [stderr]   --> src/geo.rs:70:21
[INFO] [stderr]    |
[INFO] [stderr] 70 |                 let t = temp_plus;
[INFO] [stderr]    |                     ^
[INFO] [stderr]    |
[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: 6th binding whose name is just one char
[INFO] [stderr]   --> src/geo.rs:71:21
[INFO] [stderr]    |
[INFO] [stderr] 71 |                 let p = r.point_at_parameter(temp_plus);
[INFO] [stderr]    |                     ^
[INFO] [stderr]    |
[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: 5th binding whose name is just one char
[INFO] [stderr]    --> src/geo.rs:144:21
[INFO] [stderr]     |
[INFO] [stderr] 144 |                 let t = temp_minus;
[INFO] [stderr]     |                     ^
[INFO] [stderr]     |
[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: 6th binding whose name is just one char
[INFO] [stderr]    --> src/geo.rs:145:21
[INFO] [stderr]     |
[INFO] [stderr] 145 |                 let p = r.point_at_parameter(t);
[INFO] [stderr]     |                     ^
[INFO] [stderr]     |
[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: 5th binding whose name is just one char
[INFO] [stderr]    --> src/geo.rs:158:21
[INFO] [stderr]     |
[INFO] [stderr] 158 |                 let t = temp_plus;
[INFO] [stderr]     |                     ^
[INFO] [stderr]     |
[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: 6th binding whose name is just one char
[INFO] [stderr]    --> src/geo.rs:159:21
[INFO] [stderr]     |
[INFO] [stderr] 159 |                 let p = r.point_at_parameter(temp_plus);
[INFO] [stderr]     |                     ^
[INFO] [stderr]     |
[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/geo.rs:371:13
[INFO] [stderr]     |
[INFO] [stderr] 371 |             left: left,
[INFO] [stderr]     |             ^^^^^^^^^^ help: replace it with: `left`
[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/geo.rs:372:13
[INFO] [stderr]     |
[INFO] [stderr] 372 |             right: right,
[INFO] [stderr]     |             ^^^^^^^^^^^^ help: replace it with: `right`
[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/material.rs:105:13
[INFO] [stderr]     |
[INFO] [stderr] 105 |             attenuation: attenuation,
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `attenuation`
[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/geo.rs:56:21
[INFO] [stderr]    |
[INFO] [stderr] 56 |                 let t = temp_minus;
[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: 6th binding whose name is just one char
[INFO] [stderr]   --> src/geo.rs:57:21
[INFO] [stderr]    |
[INFO] [stderr] 57 |                 let p = r.point_at_parameter(t);
[INFO] [stderr]    |                     ^
[INFO] [stderr]    |
[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: 5th binding whose name is just one char
[INFO] [stderr]   --> src/geo.rs:70:21
[INFO] [stderr]    |
[INFO] [stderr] 70 |                 let t = temp_plus;
[INFO] [stderr]    |                     ^
[INFO] [stderr]    |
[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: 6th binding whose name is just one char
[INFO] [stderr]   --> src/geo.rs:71:21
[INFO] [stderr]    |
[INFO] [stderr] 71 |                 let p = r.point_at_parameter(temp_plus);
[INFO] [stderr]    |                     ^
[INFO] [stderr]    |
[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: 5th binding whose name is just one char
[INFO] [stderr]    --> src/geo.rs:144:21
[INFO] [stderr]     |
[INFO] [stderr] 144 |                 let t = temp_minus;
[INFO] [stderr]     |                     ^
[INFO] [stderr]     |
[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: 6th binding whose name is just one char
[INFO] [stderr]    --> src/geo.rs:145:21
[INFO] [stderr]     |
[INFO] [stderr] 145 |                 let p = r.point_at_parameter(t);
[INFO] [stderr]     |                     ^
[INFO] [stderr]     |
[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: 5th binding whose name is just one char
[INFO] [stderr]    --> src/geo.rs:158:21
[INFO] [stderr]     |
[INFO] [stderr] 158 |                 let t = temp_plus;
[INFO] [stderr]     |                     ^
[INFO] [stderr]     |
[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: 6th binding whose name is just one char
[INFO] [stderr]    --> src/geo.rs:159:21
[INFO] [stderr]     |
[INFO] [stderr] 159 |                 let p = r.point_at_parameter(temp_plus);
[INFO] [stderr]     |                     ^
[INFO] [stderr]     |
[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/geo.rs:371:13
[INFO] [stderr]     |
[INFO] [stderr] 371 |             left: left,
[INFO] [stderr]     |             ^^^^^^^^^^ help: replace it with: `left`
[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/geo.rs:372:13
[INFO] [stderr]     |
[INFO] [stderr] 372 |             right: right,
[INFO] [stderr]     |             ^^^^^^^^^^^^ help: replace it with: `right`
[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/material.rs:105:13
[INFO] [stderr]     |
[INFO] [stderr] 105 |             attenuation: attenuation,
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `attenuation`
[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: unneeded return statement
[INFO] [stderr]    --> src/geo.rs:396:13
[INFO] [stderr]     |
[INFO] [stderr] 396 |             return None;
[INFO] [stderr]     |             ^^^^^^^^^^^^ help: remove `return` as shown: `None`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::needless_return)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: this function has too many arguments (9/7)
[INFO] [stderr]   --> src/camera.rs:16:5
[INFO] [stderr]    |
[INFO] [stderr] 16 | /     pub fn new(
[INFO] [stderr] 17 | |         look_from: Vec3,
[INFO] [stderr] 18 | |         look_at: Vec3,
[INFO] [stderr] 19 | |         v_up: Vec3,
[INFO] [stderr] ...  |
[INFO] [stderr] 49 | |         }
[INFO] [stderr] 50 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::too_many_arguments)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#too_many_arguments
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/geo.rs:396:13
[INFO] [stderr]     |
[INFO] [stderr] 396 |             return None;
[INFO] [stderr]     |             ^^^^^^^^^^^^ help: remove `return` as shown: `None`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::needless_return)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[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/geo.rs:205:13
[INFO] [stderr]     |
[INFO] [stderr] 205 | /             match item.hit(&r.clone(), t_min, closest_so_far) {
[INFO] [stderr] 206 | |                 Some(temp_rec) => {
[INFO] [stderr] 207 | |                     closest_so_far = temp_rec.t;
[INFO] [stderr] 208 | |                     hit = Some(temp_rec)
[INFO] [stderr] ...   |
[INFO] [stderr] 211 | |                 None => (),
[INFO] [stderr] 212 | |             }
[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] 205 |             if let Some(temp_rec) = item.hit(&r.clone(), t_min, closest_so_far) {
[INFO] [stderr] 206 |     closest_so_far = temp_rec.t;
[INFO] [stderr] 207 |     hit = Some(temp_rec)
[INFO] [stderr] 208 | }
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to one
[INFO] [stderr]    --> src/geo.rs:219:12
[INFO] [stderr]     |
[INFO] [stderr] 219 |         if self.list.len() < 1 {
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `self.list.is_empty()`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::len_zero)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: you seem to be trying to use `&Box<T>`. Consider using just `&T`
[INFO] [stderr]    --> src/geo.rs:244:25
[INFO] [stderr]     |
[INFO] [stderr] 244 | pub fn box_x_compare(a: &Box<Hittable>, b: &Box<Hittable>) -> Ordering {
[INFO] [stderr]     |                         ^^^^^^^^^^^^^^ help: try: `&Hittable`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::borrowed_box)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#borrowed_box
[INFO] [stderr] 
[INFO] [stderr] warning: you seem to be trying to use `&Box<T>`. Consider using just `&T`
[INFO] [stderr]    --> src/geo.rs:244:44
[INFO] [stderr]     |
[INFO] [stderr] 244 | pub fn box_x_compare(a: &Box<Hittable>, b: &Box<Hittable>) -> Ordering {
[INFO] [stderr]     |                                            ^^^^^^^^^^^^^^ help: try: `&Hittable`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#borrowed_box
[INFO] [stderr] 
[INFO] [stderr] warning: you seem to be trying to use `&Box<T>`. Consider using just `&T`
[INFO] [stderr]    --> src/geo.rs:257:25
[INFO] [stderr]     |
[INFO] [stderr] 257 | pub fn box_y_compare(a: &Box<Hittable>, b: &Box<Hittable>) -> Ordering {
[INFO] [stderr]     |                         ^^^^^^^^^^^^^^ help: try: `&Hittable`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#borrowed_box
[INFO] [stderr] 
[INFO] [stderr] warning: you seem to be trying to use `&Box<T>`. Consider using just `&T`
[INFO] [stderr]    --> src/geo.rs:257:44
[INFO] [stderr]     |
[INFO] [stderr] 257 | pub fn box_y_compare(a: &Box<Hittable>, b: &Box<Hittable>) -> Ordering {
[INFO] [stderr]     |                                            ^^^^^^^^^^^^^^ help: try: `&Hittable`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#borrowed_box
[INFO] [stderr] 
[INFO] [stderr] warning: you seem to be trying to use `&Box<T>`. Consider using just `&T`
[INFO] [stderr]    --> src/geo.rs:270:25
[INFO] [stderr]     |
[INFO] [stderr] 270 | pub fn box_z_compare(a: &Box<Hittable>, b: &Box<Hittable>) -> Ordering {
[INFO] [stderr]     |                         ^^^^^^^^^^^^^^ help: try: `&Hittable`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#borrowed_box
[INFO] [stderr] 
[INFO] [stderr] warning: you seem to be trying to use `&Box<T>`. Consider using just `&T`
[INFO] [stderr]    --> src/geo.rs:270:44
[INFO] [stderr]     |
[INFO] [stderr] 270 | pub fn box_z_compare(a: &Box<Hittable>, b: &Box<Hittable>) -> Ordering {
[INFO] [stderr]     |                                            ^^^^^^^^^^^^^^ help: try: `&Hittable`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#borrowed_box
[INFO] [stderr] 
[INFO] [stderr] warning: you seem to be trying to use `&Box<T>`. Consider using just `&T`
[INFO] [stderr]    --> src/geo.rs:289:23
[INFO] [stderr]     |
[INFO] [stderr] 289 | pub fn box_compare(a: &Box<Hittable>, b: &Box<Hittable>, axis: Axis) -> Ordering {
[INFO] [stderr]     |                       ^^^^^^^^^^^^^^ help: try: `&Hittable`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#borrowed_box
[INFO] [stderr] 
[INFO] [stderr] warning: you seem to be trying to use `&Box<T>`. Consider using just `&T`
[INFO] [stderr]    --> src/geo.rs:289:42
[INFO] [stderr]     |
[INFO] [stderr] 289 | pub fn box_compare(a: &Box<Hittable>, b: &Box<Hittable>, axis: Axis) -> Ordering {
[INFO] [stderr]     |                                          ^^^^^^^^^^^^^^ help: try: `&Hittable`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#borrowed_box
[INFO] [stderr] 
[INFO] [stderr] warning: casting i32 to f64 may become silently lossy if types change
[INFO] [stderr]   --> src/scene.rs:24:31
[INFO] [stderr]    |
[INFO] [stderr] 24 |             let center = vec3(a as f64 + 0.9 * v1, 0.2, b as f64 + 0.9 * v2);
[INFO] [stderr]    |                               ^^^^^^^^ help: try: `f64::from(a)`
[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 i32 to f64 may become silently lossy if types change
[INFO] [stderr]   --> src/scene.rs:24:57
[INFO] [stderr]    |
[INFO] [stderr] 24 |             let center = vec3(a as f64 + 0.9 * v1, 0.2, b as f64 + 0.9 * v2);
[INFO] [stderr]    |                                                         ^^^^^^^^ help: try: `f64::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] warning: 5th binding whose name is just one char
[INFO] [stderr]   --> src/main.rs:60:25
[INFO] [stderr]    |
[INFO] [stderr] 60 |                     let r = cam.get_ray(u, v);
[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: 5th binding whose name is just one char
[INFO] [stderr]   --> src/main.rs:60:25
[INFO] [stderr]    |
[INFO] [stderr] 60 |                     let r = cam.get_ray(u, v);
[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: this function has too many arguments (9/7)
[INFO] [stderr]   --> src/camera.rs:16:5
[INFO] [stderr]    |
[INFO] [stderr] 16 | /     pub fn new(
[INFO] [stderr] 17 | |         look_from: Vec3,
[INFO] [stderr] 18 | |         look_at: Vec3,
[INFO] [stderr] 19 | |         v_up: Vec3,
[INFO] [stderr] ...  |
[INFO] [stderr] 49 | |         }
[INFO] [stderr] 50 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::too_many_arguments)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#too_many_arguments
[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/geo.rs:205:13
[INFO] [stderr]     |
[INFO] [stderr] 205 | /             match item.hit(&r.clone(), t_min, closest_so_far) {
[INFO] [stderr] 206 | |                 Some(temp_rec) => {
[INFO] [stderr] 207 | |                     closest_so_far = temp_rec.t;
[INFO] [stderr] 208 | |                     hit = Some(temp_rec)
[INFO] [stderr] ...   |
[INFO] [stderr] 211 | |                 None => (),
[INFO] [stderr] 212 | |             }
[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] 205 |             if let Some(temp_rec) = item.hit(&r.clone(), t_min, closest_so_far) {
[INFO] [stderr] 206 |     closest_so_far = temp_rec.t;
[INFO] [stderr] 207 |     hit = Some(temp_rec)
[INFO] [stderr] 208 | }
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to one
[INFO] [stderr]    --> src/geo.rs:219:12
[INFO] [stderr]     |
[INFO] [stderr] 219 |         if self.list.len() < 1 {
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `self.list.is_empty()`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::len_zero)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: you seem to be trying to use `&Box<T>`. Consider using just `&T`
[INFO] [stderr]    --> src/geo.rs:244:25
[INFO] [stderr]     |
[INFO] [stderr] 244 | pub fn box_x_compare(a: &Box<Hittable>, b: &Box<Hittable>) -> Ordering {
[INFO] [stderr]     |                         ^^^^^^^^^^^^^^ help: try: `&Hittable`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::borrowed_box)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#borrowed_box
[INFO] [stderr] 
[INFO] [stderr] warning: you seem to be trying to use `&Box<T>`. Consider using just `&T`
[INFO] [stderr]    --> src/geo.rs:244:44
[INFO] [stderr]     |
[INFO] [stderr] 244 | pub fn box_x_compare(a: &Box<Hittable>, b: &Box<Hittable>) -> Ordering {
[INFO] [stderr]     |                                            ^^^^^^^^^^^^^^ help: try: `&Hittable`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#borrowed_box
[INFO] [stderr] 
[INFO] [stderr] warning: you seem to be trying to use `&Box<T>`. Consider using just `&T`
[INFO] [stderr]    --> src/geo.rs:257:25
[INFO] [stderr]     |
[INFO] [stderr] 257 | pub fn box_y_compare(a: &Box<Hittable>, b: &Box<Hittable>) -> Ordering {
[INFO] [stderr]     |                         ^^^^^^^^^^^^^^ help: try: `&Hittable`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#borrowed_box
[INFO] [stderr] 
[INFO] [stderr] warning: you seem to be trying to use `&Box<T>`. Consider using just `&T`
[INFO] [stderr]    --> src/geo.rs:257:44
[INFO] [stderr]     |
[INFO] [stderr] 257 | pub fn box_y_compare(a: &Box<Hittable>, b: &Box<Hittable>) -> Ordering {
[INFO] [stderr]     |                                            ^^^^^^^^^^^^^^ help: try: `&Hittable`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#borrowed_box
[INFO] [stderr] 
[INFO] [stderr] warning: you seem to be trying to use `&Box<T>`. Consider using just `&T`
[INFO] [stderr]    --> src/geo.rs:270:25
[INFO] [stderr]     |
[INFO] [stderr] 270 | pub fn box_z_compare(a: &Box<Hittable>, b: &Box<Hittable>) -> Ordering {
[INFO] [stderr]     |                         ^^^^^^^^^^^^^^ help: try: `&Hittable`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#borrowed_box
[INFO] [stderr] 
[INFO] [stderr] warning: you seem to be trying to use `&Box<T>`. Consider using just `&T`
[INFO] [stderr]    --> src/geo.rs:270:44
[INFO] [stderr]     |
[INFO] [stderr] 270 | pub fn box_z_compare(a: &Box<Hittable>, b: &Box<Hittable>) -> Ordering {
[INFO] [stderr]     |                                            ^^^^^^^^^^^^^^ help: try: `&Hittable`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#borrowed_box
[INFO] [stderr] 
[INFO] [stderr] warning: you seem to be trying to use `&Box<T>`. Consider using just `&T`
[INFO] [stderr]    --> src/geo.rs:289:23
[INFO] [stderr]     |
[INFO] [stderr] 289 | pub fn box_compare(a: &Box<Hittable>, b: &Box<Hittable>, axis: Axis) -> Ordering {
[INFO] [stderr]     |                       ^^^^^^^^^^^^^^ help: try: `&Hittable`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#borrowed_box
[INFO] [stderr] 
[INFO] [stderr] warning: you seem to be trying to use `&Box<T>`. Consider using just `&T`
[INFO] [stderr]    --> src/geo.rs:289:42
[INFO] [stderr]     |
[INFO] [stderr] 289 | pub fn box_compare(a: &Box<Hittable>, b: &Box<Hittable>, axis: Axis) -> Ordering {
[INFO] [stderr]     |                                          ^^^^^^^^^^^^^^ help: try: `&Hittable`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#borrowed_box
[INFO] [stderr] 
[INFO] [stderr] warning: casting i32 to f64 may become silently lossy if types change
[INFO] [stderr]   --> src/scene.rs:24:31
[INFO] [stderr]    |
[INFO] [stderr] 24 |             let center = vec3(a as f64 + 0.9 * v1, 0.2, b as f64 + 0.9 * v2);
[INFO] [stderr]    |                               ^^^^^^^^ help: try: `f64::from(a)`
[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 i32 to f64 may become silently lossy if types change
[INFO] [stderr]   --> src/scene.rs:24:57
[INFO] [stderr]    |
[INFO] [stderr] 24 |             let center = vec3(a as f64 + 0.9 * v1, 0.2, b as f64 + 0.9 * v2);
[INFO] [stderr]    |                                                         ^^^^^^^^ help: try: `f64::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] warning: unused imports: `random_scene`, `simple_spheres`
[INFO] [stderr]   --> src/main.rs:16:32
[INFO] [stderr]    |
[INFO] [stderr] 16 | use weekend_raytracer::scene::{random_scene, simple_spheres, sphere_tree};
[INFO] [stderr]    |                                ^^^^^^^^^^^^  ^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `random_scene`, `simple_spheres`
[INFO] [stderr]   --> src/main.rs:16:32
[INFO] [stderr]    |
[INFO] [stderr] 16 | use weekend_raytracer::scene::{random_scene, simple_spheres, sphere_tree};
[INFO] [stderr]    |                                ^^^^^^^^^^^^  ^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: casting u32 to f64 may become silently lossy if types change
[INFO] [stderr]   --> src/main.rs:36:9
[INFO] [stderr]    |
[INFO] [stderr] 36 |         nx as f64 / ny as f64,
[INFO] [stderr]    |         ^^^^^^^^^ help: try: `f64::from(nx)`
[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:36:21
[INFO] [stderr]    |
[INFO] [stderr] 36 |         nx as f64 / ny as f64,
[INFO] [stderr]    |                     ^^^^^^^^^ help: try: `f64::from(ny)`
[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:58:46
[INFO] [stderr]    |
[INFO] [stderr] 58 |                     let u = (i as f64 + a) / nx as f64;
[INFO] [stderr]    |                                              ^^^^^^^^^ help: try: `f64::from(nx)`
[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:59:46
[INFO] [stderr]    |
[INFO] [stderr] 59 |                     let v = (j as f64 + b) / ny as f64;
[INFO] [stderr]    |                                              ^^^^^^^^^ help: try: `f64::from(ny)`
[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 i32 to f64 may become silently lossy if types change
[INFO] [stderr]   --> src/main.rs:64:41
[INFO] [stderr]    |
[INFO] [stderr] 64 |                 let col = total_color / ns as f64;
[INFO] [stderr]    |                                         ^^^^^^^^^ help: try: `f64::from(ns)`
[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: `ref` on an entire `let` pattern is discouraged, take a reference with `&` instead
[INFO] [stderr]   --> src/main.rs:81:9
[INFO] [stderr]    |
[INFO] [stderr] 81 |     let ref mut w = BufWriter::new(file);
[INFO] [stderr]    |     ----^^^^^^^^^------------------------ help: try: `let w = &mut BufWriter::new(file);`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::toplevel_ref_arg)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#toplevel_ref_arg
[INFO] [stderr] 
[INFO] [stderr] warning: casting u32 to f64 may become silently lossy if types change
[INFO] [stderr]   --> src/main.rs:36:9
[INFO] [stderr]    |
[INFO] [stderr] 36 |         nx as f64 / ny as f64,
[INFO] [stderr]    |         ^^^^^^^^^ help: try: `f64::from(nx)`
[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:36:21
[INFO] [stderr]    |
[INFO] [stderr] 36 |         nx as f64 / ny as f64,
[INFO] [stderr]    |                     ^^^^^^^^^ help: try: `f64::from(ny)`
[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:58:46
[INFO] [stderr]    |
[INFO] [stderr] 58 |                     let u = (i as f64 + a) / nx as f64;
[INFO] [stderr]    |                                              ^^^^^^^^^ help: try: `f64::from(nx)`
[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:59:46
[INFO] [stderr]    |
[INFO] [stderr] 59 |                     let v = (j as f64 + b) / ny as f64;
[INFO] [stderr]    |                                              ^^^^^^^^^ help: try: `f64::from(ny)`
[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 i32 to f64 may become silently lossy if types change
[INFO] [stderr]   --> src/main.rs:64:41
[INFO] [stderr]    |
[INFO] [stderr] 64 |                 let col = total_color / ns as f64;
[INFO] [stderr]    |                                         ^^^^^^^^^ help: try: `f64::from(ns)`
[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: `ref` on an entire `let` pattern is discouraged, take a reference with `&` instead
[INFO] [stderr]   --> src/main.rs:81:9
[INFO] [stderr]    |
[INFO] [stderr] 81 |     let ref mut w = BufWriter::new(file);
[INFO] [stderr]    |     ----^^^^^^^^^------------------------ help: try: `let w = &mut BufWriter::new(file);`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::toplevel_ref_arg)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#toplevel_ref_arg
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 11.70s
[INFO] running `"docker" "inspect" "30dd78fd35b5d3848841c6edf14c3ba157591d61f8e837f65551b79886eea842"`
[INFO] running `"docker" "rm" "-f" "30dd78fd35b5d3848841c6edf14c3ba157591d61f8e837f65551b79886eea842"`
[INFO] [stdout] 30dd78fd35b5d3848841c6edf14c3ba157591d61f8e837f65551b79886eea842