[INFO] updating cached repository Heasummn/ray_tracer
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/Heasummn/ray_tracer
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/Heasummn/ray_tracer" "work/ex/clippy-test-run/sources/stable/gh/Heasummn/ray_tracer"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/Heasummn/ray_tracer'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/Heasummn/ray_tracer" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/Heasummn/ray_tracer"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/Heasummn/ray_tracer'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 01969a6f3f44acbe91042780b08b7f2d1968a860
[INFO] sha for GitHub repo Heasummn/ray_tracer: 01969a6f3f44acbe91042780b08b7f2d1968a860
[INFO] validating manifest of Heasummn/ray_tracer 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 Heasummn/ray_tracer 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 Heasummn/ray_tracer
[INFO] finished frobbing Heasummn/ray_tracer
[INFO] frobbed toml for Heasummn/ray_tracer written to work/ex/clippy-test-run/sources/stable/gh/Heasummn/ray_tracer/Cargo.toml
[INFO] started frobbing Heasummn/ray_tracer
[INFO] finished frobbing Heasummn/ray_tracer
[INFO] frobbed toml for Heasummn/ray_tracer written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/Heasummn/ray_tracer/Cargo.toml
[INFO] crate Heasummn/ray_tracer 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 Heasummn/ray_tracer against stable for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-5/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/gh/Heasummn/ray_tracer:/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] 6df9ee77a95ee800e962436d249213ad8e6746b1bdd42f4b9883a8aebd9ab12c
[INFO] running `"docker" "start" "-a" "6df9ee77a95ee800e962436d249213ad8e6746b1bdd42f4b9883a8aebd9ab12c"`
[INFO] [stderr]    Compiling syn v0.15.11
[INFO] [stderr]    Compiling num-derive v0.2.3
[INFO] [stderr]     Checking tiff v0.2.1
[INFO] [stderr]     Checking image v0.20.0
[INFO] [stderr]     Checking ray_tracer v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/camera.rs:15:7
[INFO] [stderr]    |
[INFO] [stderr] 15 |       width: width,
[INFO] [stderr]    |       ^^^^^^^^^^^^ help: replace it with: `width`
[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/camera.rs:16:7
[INFO] [stderr]    |
[INFO] [stderr] 16 |       height: height,
[INFO] [stderr]    |       ^^^^^^^^^^^^^^ help: replace it with: `height`
[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/camera.rs:17:7
[INFO] [stderr]    |
[INFO] [stderr] 17 |       fov: fov,
[INFO] [stderr]    |       ^^^^^^^^ help: replace it with: `fov`
[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/camera.rs:15:7
[INFO] [stderr]    |
[INFO] [stderr] 15 |       width: width,
[INFO] [stderr]    |       ^^^^^^^^^^^^ help: replace it with: `width`
[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/camera.rs:16:7
[INFO] [stderr]    |
[INFO] [stderr] 16 |       height: height,
[INFO] [stderr]    |       ^^^^^^^^^^^^^^ help: replace it with: `height`
[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/camera.rs:17:7
[INFO] [stderr]    |
[INFO] [stderr] 17 |       fov: fov,
[INFO] [stderr]    |       ^^^^^^^^ help: replace it with: `fov`
[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/camera.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 | /     return Camera {
[INFO] [stderr] 15 | |       width: width,
[INFO] [stderr] 16 | |       height: height,
[INFO] [stderr] 17 | |       fov: fov,
[INFO] [stderr] 18 | |       aspect_ratio: (width as f64) / (height as f64),
[INFO] [stderr] 19 | |     };
[INFO] [stderr]    | |______^
[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] help: remove `return` as shown
[INFO] [stderr]    |
[INFO] [stderr] 14 |     Camera {
[INFO] [stderr] 15 |       width: width,
[INFO] [stderr] 16 |       height: height,
[INFO] [stderr] 17 |       fov: fov,
[INFO] [stderr] 18 |       aspect_ratio: (width as f64) / (height as f64),
[INFO] [stderr] 19 |     }
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/camera.rs:25:5
[INFO] [stderr]    |
[INFO] [stderr] 25 | /     return Ray {
[INFO] [stderr] 26 | |       origin: Vec3::zeros(),
[INFO] [stderr] 27 | |       direction: Vec3 {
[INFO] [stderr] 28 | |         x: (2.0 * ((x as f64 + 0.5) / (self.width as f64)) - 1.0) // converting (0, width) -> (-1, 1)
[INFO] [stderr] ...  |
[INFO] [stderr] 34 | |       .as_unit(),
[INFO] [stderr] 35 | |     };
[INFO] [stderr]    | |______^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] help: remove `return` as shown
[INFO] [stderr]    |
[INFO] [stderr] 25 |     Ray {
[INFO] [stderr] 26 |       origin: Vec3::zeros(),
[INFO] [stderr] 27 |       direction: Vec3 {
[INFO] [stderr] 28 |         x: (2.0 * ((x as f64 + 0.5) / (self.width as f64)) - 1.0) // converting (0, width) -> (-1, 1)
[INFO] [stderr] 29 |           * fov_correction
[INFO] [stderr] 30 |           * self.aspect_ratio, // correcting square size for non-square images
[INFO] [stderr]  ...
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/sphere.rs:15:5
[INFO] [stderr]    |
[INFO] [stderr] 15 |     return distance < (self.radius * self.radius);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `distance < (self.radius * self.radius)`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/vec3.rs:48:5
[INFO] [stderr]    |
[INFO] [stderr] 48 | /     return Vec3 {
[INFO] [stderr] 49 | |       x: self.x / length,
[INFO] [stderr] 50 | |       y: self.y / length,
[INFO] [stderr] 51 | |       z: self.z / length,
[INFO] [stderr] 52 | |     };
[INFO] [stderr]    | |______^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] help: remove `return` as shown
[INFO] [stderr]    |
[INFO] [stderr] 48 |     Vec3 {
[INFO] [stderr] 49 |       x: self.x / length,
[INFO] [stderr] 50 |       y: self.y / length,
[INFO] [stderr] 51 |       z: self.z / length,
[INFO] [stderr] 52 |     }
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/vec3.rs:72:5
[INFO] [stderr]    |
[INFO] [stderr] 72 | /     return Vec3 {
[INFO] [stderr] 73 | |       x: self.x + other.x,
[INFO] [stderr] 74 | |       y: self.y + other.y,
[INFO] [stderr] 75 | |       z: self.z + other.z,
[INFO] [stderr] 76 | |     };
[INFO] [stderr]    | |______^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] help: remove `return` as shown
[INFO] [stderr]    |
[INFO] [stderr] 72 |     Vec3 {
[INFO] [stderr] 73 |       x: self.x + other.x,
[INFO] [stderr] 74 |       y: self.y + other.y,
[INFO] [stderr] 75 |       z: self.z + other.z,
[INFO] [stderr] 76 |     }
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/vec3.rs:84:5
[INFO] [stderr]    |
[INFO] [stderr] 84 | /     return Vec3 {
[INFO] [stderr] 85 | |       x: self.x - other.x,
[INFO] [stderr] 86 | |       y: self.y - other.y,
[INFO] [stderr] 87 | |       z: self.z - other.z,
[INFO] [stderr] 88 | |     };
[INFO] [stderr]    | |______^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] help: remove `return` as shown
[INFO] [stderr]    |
[INFO] [stderr] 84 |     Vec3 {
[INFO] [stderr] 85 |       x: self.x - other.x,
[INFO] [stderr] 86 |       y: self.y - other.y,
[INFO] [stderr] 87 |       z: self.z - other.z,
[INFO] [stderr] 88 |     }
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/vec3.rs:96:5
[INFO] [stderr]     |
[INFO] [stderr] 96  | /     return Vec3 {
[INFO] [stderr] 97  | |       x: self.x * other,
[INFO] [stderr] 98  | |       y: self.y * other,
[INFO] [stderr] 99  | |       z: self.z * other,
[INFO] [stderr] 100 | |     };
[INFO] [stderr]     | |______^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] help: remove `return` as shown
[INFO] [stderr]     |
[INFO] [stderr] 96  |     Vec3 {
[INFO] [stderr] 97  |       x: self.x * other,
[INFO] [stderr] 98  |       y: self.y * other,
[INFO] [stderr] 99  |       z: self.z * other,
[INFO] [stderr] 100 |     }
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/vec3.rs:108:5
[INFO] [stderr]     |
[INFO] [stderr] 108 | /     return Vec3 {
[INFO] [stderr] 109 | |       x: self.x / other,
[INFO] [stderr] 110 | |       y: self.y / other,
[INFO] [stderr] 111 | |       z: self.z / other,
[INFO] [stderr] 112 | |     };
[INFO] [stderr]     | |______^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] help: remove `return` as shown
[INFO] [stderr]     |
[INFO] [stderr] 108 |     Vec3 {
[INFO] [stderr] 109 |       x: self.x / other,
[INFO] [stderr] 110 |       y: self.y / other,
[INFO] [stderr] 111 |       z: self.z / other,
[INFO] [stderr] 112 |     }
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/vec3.rs:129:5
[INFO] [stderr]     |
[INFO] [stderr] 129 |     return self.x == other.x && self.y == other.y && self.z == other.z;
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `self.x == other.x && self.y == other.y && self.z == other.z`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/vec3.rs:142:5
[INFO] [stderr]     |
[INFO] [stderr] 142 |     return image::Rgb([vec.x as u8, vec.y as u8, vec.z as u8]);
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `image::Rgb([vec.x as u8, vec.y as u8, vec.z as u8])`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/camera.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 | /     return Camera {
[INFO] [stderr] 15 | |       width: width,
[INFO] [stderr] 16 | |       height: height,
[INFO] [stderr] 17 | |       fov: fov,
[INFO] [stderr] 18 | |       aspect_ratio: (width as f64) / (height as f64),
[INFO] [stderr] 19 | |     };
[INFO] [stderr]    | |______^
[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] help: remove `return` as shown
[INFO] [stderr]    |
[INFO] [stderr] 14 |     Camera {
[INFO] [stderr] 15 |       width: width,
[INFO] [stderr] 16 |       height: height,
[INFO] [stderr] 17 |       fov: fov,
[INFO] [stderr] 18 |       aspect_ratio: (width as f64) / (height as f64),
[INFO] [stderr] 19 |     }
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/camera.rs:25:5
[INFO] [stderr]    |
[INFO] [stderr] 25 | /     return Ray {
[INFO] [stderr] 26 | |       origin: Vec3::zeros(),
[INFO] [stderr] 27 | |       direction: Vec3 {
[INFO] [stderr] 28 | |         x: (2.0 * ((x as f64 + 0.5) / (self.width as f64)) - 1.0) // converting (0, width) -> (-1, 1)
[INFO] [stderr] ...  |
[INFO] [stderr] 34 | |       .as_unit(),
[INFO] [stderr] 35 | |     };
[INFO] [stderr]    | |______^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] help: remove `return` as shown
[INFO] [stderr]    |
[INFO] [stderr] 25 |     Ray {
[INFO] [stderr] 26 |       origin: Vec3::zeros(),
[INFO] [stderr] 27 |       direction: Vec3 {
[INFO] [stderr] 28 |         x: (2.0 * ((x as f64 + 0.5) / (self.width as f64)) - 1.0) // converting (0, width) -> (-1, 1)
[INFO] [stderr] 29 |           * fov_correction
[INFO] [stderr] 30 |           * self.aspect_ratio, // correcting square size for non-square images
[INFO] [stderr]  ...
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/sphere.rs:15:5
[INFO] [stderr]    |
[INFO] [stderr] 15 |     return distance < (self.radius * self.radius);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `distance < (self.radius * self.radius)`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/vec3.rs:48:5
[INFO] [stderr]    |
[INFO] [stderr] 48 | /     return Vec3 {
[INFO] [stderr] 49 | |       x: self.x / length,
[INFO] [stderr] 50 | |       y: self.y / length,
[INFO] [stderr] 51 | |       z: self.z / length,
[INFO] [stderr] 52 | |     };
[INFO] [stderr]    | |______^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] help: remove `return` as shown
[INFO] [stderr]    |
[INFO] [stderr] 48 |     Vec3 {
[INFO] [stderr] 49 |       x: self.x / length,
[INFO] [stderr] 50 |       y: self.y / length,
[INFO] [stderr] 51 |       z: self.z / length,
[INFO] [stderr] 52 |     }
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/vec3.rs:72:5
[INFO] [stderr]    |
[INFO] [stderr] 72 | /     return Vec3 {
[INFO] [stderr] 73 | |       x: self.x + other.x,
[INFO] [stderr] 74 | |       y: self.y + other.y,
[INFO] [stderr] 75 | |       z: self.z + other.z,
[INFO] [stderr] 76 | |     };
[INFO] [stderr]    | |______^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] help: remove `return` as shown
[INFO] [stderr]    |
[INFO] [stderr] 72 |     Vec3 {
[INFO] [stderr] 73 |       x: self.x + other.x,
[INFO] [stderr] 74 |       y: self.y + other.y,
[INFO] [stderr] 75 |       z: self.z + other.z,
[INFO] [stderr] 76 |     }
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/vec3.rs:84:5
[INFO] [stderr]    |
[INFO] [stderr] 84 | /     return Vec3 {
[INFO] [stderr] 85 | |       x: self.x - other.x,
[INFO] [stderr] 86 | |       y: self.y - other.y,
[INFO] [stderr] 87 | |       z: self.z - other.z,
[INFO] [stderr] 88 | |     };
[INFO] [stderr]    | |______^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] help: remove `return` as shown
[INFO] [stderr]    |
[INFO] [stderr] 84 |     Vec3 {
[INFO] [stderr] 85 |       x: self.x - other.x,
[INFO] [stderr] 86 |       y: self.y - other.y,
[INFO] [stderr] 87 |       z: self.z - other.z,
[INFO] [stderr] 88 |     }
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/vec3.rs:96:5
[INFO] [stderr]     |
[INFO] [stderr] 96  | /     return Vec3 {
[INFO] [stderr] 97  | |       x: self.x * other,
[INFO] [stderr] 98  | |       y: self.y * other,
[INFO] [stderr] 99  | |       z: self.z * other,
[INFO] [stderr] 100 | |     };
[INFO] [stderr]     | |______^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] help: remove `return` as shown
[INFO] [stderr]     |
[INFO] [stderr] 96  |     Vec3 {
[INFO] [stderr] 97  |       x: self.x * other,
[INFO] [stderr] 98  |       y: self.y * other,
[INFO] [stderr] 99  |       z: self.z * other,
[INFO] [stderr] 100 |     }
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/vec3.rs:108:5
[INFO] [stderr]     |
[INFO] [stderr] 108 | /     return Vec3 {
[INFO] [stderr] 109 | |       x: self.x / other,
[INFO] [stderr] 110 | |       y: self.y / other,
[INFO] [stderr] 111 | |       z: self.z / other,
[INFO] [stderr] 112 | |     };
[INFO] [stderr]     | |______^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] help: remove `return` as shown
[INFO] [stderr]     |
[INFO] [stderr] 108 |     Vec3 {
[INFO] [stderr] 109 |       x: self.x / other,
[INFO] [stderr] 110 |       y: self.y / other,
[INFO] [stderr] 111 |       z: self.z / other,
[INFO] [stderr] 112 |     }
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/vec3.rs:129:5
[INFO] [stderr]     |
[INFO] [stderr] 129 |     return self.x == other.x && self.y == other.y && self.z == other.z;
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `self.x == other.x && self.y == other.y && self.z == other.z`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/vec3.rs:142:5
[INFO] [stderr]     |
[INFO] [stderr] 142 |     return image::Rgb([vec.x as u8, vec.y as u8, vec.z as u8]);
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `image::Rgb([vec.x as u8, vec.y as u8, vec.z as u8])`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: casting u32 to f64 may become silently lossy if types change
[INFO] [stderr]   --> src/camera.rs:18:21
[INFO] [stderr]    |
[INFO] [stderr] 18 |       aspect_ratio: (width as f64) / (height as f64),
[INFO] [stderr]    |                     ^^^^^^^^^^^^^^ help: try: `f64::from(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/camera.rs:18:38
[INFO] [stderr]    |
[INFO] [stderr] 18 |       aspect_ratio: (width as f64) / (height as f64),
[INFO] [stderr]    |                                      ^^^^^^^^^^^^^^^ help: try: `f64::from(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/camera.rs:28:21
[INFO] [stderr]    |
[INFO] [stderr] 28 |         x: (2.0 * ((x as f64 + 0.5) / (self.width as f64)) - 1.0) // converting (0, width) -> (-1, 1)
[INFO] [stderr]    |                     ^^^^^^^^ help: try: `f64::from(x)`
[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/camera.rs:28:39
[INFO] [stderr]    |
[INFO] [stderr] 28 |         x: (2.0 * ((x as f64 + 0.5) / (self.width as f64)) - 1.0) // converting (0, width) -> (-1, 1)
[INFO] [stderr]    |                                       ^^^^^^^^^^^^^^^^^^^ help: try: `f64::from(self.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/camera.rs:31:27
[INFO] [stderr]    |
[INFO] [stderr] 31 |         y: (1.0 - 2.0 * ((y as f64 + 0.5) / (self.height as f64))) * fov_correction,
[INFO] [stderr]    |                           ^^^^^^^^ help: try: `f64::from(y)`
[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/camera.rs:31:45
[INFO] [stderr]    |
[INFO] [stderr] 31 |         y: (1.0 - 2.0 * ((y as f64 + 0.5) / (self.height as f64))) * fov_correction,
[INFO] [stderr]    |                                             ^^^^^^^^^^^^^^^^^^^^ help: try: `f64::from(self.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/camera.rs:18:21
[INFO] [stderr]    |
[INFO] [stderr] 18 |       aspect_ratio: (width as f64) / (height as f64),
[INFO] [stderr]    |                     ^^^^^^^^^^^^^^ help: try: `f64::from(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/camera.rs:18:38
[INFO] [stderr]    |
[INFO] [stderr] 18 |       aspect_ratio: (width as f64) / (height as f64),
[INFO] [stderr]    |                                      ^^^^^^^^^^^^^^^ help: try: `f64::from(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/camera.rs:28:21
[INFO] [stderr]    |
[INFO] [stderr] 28 |         x: (2.0 * ((x as f64 + 0.5) / (self.width as f64)) - 1.0) // converting (0, width) -> (-1, 1)
[INFO] [stderr]    |                     ^^^^^^^^ help: try: `f64::from(x)`
[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/camera.rs:28:39
[INFO] [stderr]    |
[INFO] [stderr] 28 |         x: (2.0 * ((x as f64 + 0.5) / (self.width as f64)) - 1.0) // converting (0, width) -> (-1, 1)
[INFO] [stderr]    |                                       ^^^^^^^^^^^^^^^^^^^ help: try: `f64::from(self.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/camera.rs:31:27
[INFO] [stderr]    |
[INFO] [stderr] 31 |         y: (1.0 - 2.0 * ((y as f64 + 0.5) / (self.height as f64))) * fov_correction,
[INFO] [stderr]    |                           ^^^^^^^^ help: try: `f64::from(y)`
[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/camera.rs:31:45
[INFO] [stderr]    |
[INFO] [stderr] 31 |         y: (1.0 - 2.0 * ((y as f64 + 0.5) / (self.height as f64))) * fov_correction,
[INFO] [stderr]    |                                             ^^^^^^^^^^^^^^^^^^^^ help: try: `f64::from(self.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] error: equal expressions as operands to `==`
[INFO] [stderr]    --> src/vec3.rs:149:5
[INFO] [stderr]     |
[INFO] [stderr] 149 | /     Vec3 {
[INFO] [stderr] 150 | |       x: 3.0,
[INFO] [stderr] 151 | |       y: 4.0,
[INFO] [stderr] 152 | |       z: 1.0
[INFO] [stderr] ...   |
[INFO] [stderr] 156 | |       z: 1.0
[INFO] [stderr] 157 | |     }
[INFO] [stderr]     | |_____^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[deny(clippy::eq_op)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#eq_op
[INFO] [stderr] 
[INFO] [stderr] error: strict comparison of f32 or f64
[INFO] [stderr]    --> src/vec3.rs:252:3
[INFO] [stderr]     |
[INFO] [stderr] 252 |   assert_eq!(op1.as_unit().norm().round(), 1.0)
[INFO] [stderr]     |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[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/vec3.rs:252:3
[INFO] [stderr]     |
[INFO] [stderr] 252 |   assert_eq!(op1.as_unit().norm().round(), 1.0)
[INFO] [stderr]     |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#float_cmp
[INFO] [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error: strict comparison of f32 or f64
[INFO] [stderr]    --> src/vec3.rs:268:3
[INFO] [stderr]     |
[INFO] [stderr] 268 |   assert_eq!(op1.dot(&op2), 122.0)
[INFO] [stderr]     |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr] note: std::f32::EPSILON and std::f64::EPSILON are available.
[INFO] [stderr]    --> src/vec3.rs:268:3
[INFO] [stderr]     |
[INFO] [stderr] 268 |   assert_eq!(op1.dot(&op2), 122.0)
[INFO] [stderr]     |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#float_cmp
[INFO] [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 3 previous errors
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `ray_tracer`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "6df9ee77a95ee800e962436d249213ad8e6746b1bdd42f4b9883a8aebd9ab12c"`
[INFO] running `"docker" "rm" "-f" "6df9ee77a95ee800e962436d249213ad8e6746b1bdd42f4b9883a8aebd9ab12c"`
[INFO] [stdout] 6df9ee77a95ee800e962436d249213ad8e6746b1bdd42f4b9883a8aebd9ab12c