[INFO] updating cached repository termhn/rayn
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/termhn/rayn
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/termhn/rayn" "work/ex/clippy-test-run/sources/stable/gh/termhn/rayn"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/termhn/rayn'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/termhn/rayn" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/termhn/rayn"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/termhn/rayn'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 7b90cc4c9f966586768170a53feea0f2cdb292b3
[INFO] sha for GitHub repo termhn/rayn: 7b90cc4c9f966586768170a53feea0f2cdb292b3
[INFO] validating manifest of termhn/rayn 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 termhn/rayn 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 termhn/rayn
[INFO] finished frobbing termhn/rayn
[INFO] frobbed toml for termhn/rayn written to work/ex/clippy-test-run/sources/stable/gh/termhn/rayn/Cargo.toml
[INFO] started frobbing termhn/rayn
[INFO] finished frobbing termhn/rayn
[INFO] frobbed toml for termhn/rayn written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/termhn/rayn/Cargo.toml
[INFO] crate termhn/rayn 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 termhn/rayn against stable for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-4/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/gh/termhn/rayn:/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] 9f71e6d0426b93e7ac9d507a62c5cc678659d29b37e73379186a6d3640c38f7d
[INFO] running `"docker" "start" "-a" "9f71e6d0426b93e7ac9d507a62c5cc678659d29b37e73379186a6d3640c38f7d"`
[INFO] [stderr]     Checking static_assertions v0.2.5
[INFO] [stderr]     Checking deflate v0.7.18
[INFO] [stderr]     Checking gif v0.10.0
[INFO] [stderr]     Checking num-integer v0.1.39
[INFO] [stderr]    Compiling vek v0.9.4
[INFO] [stderr]     Checking crossbeam-epoch v0.3.1
[INFO] [stderr]    Compiling syn v0.14.9
[INFO] [stderr]     Checking crossbeam-deque v0.2.0
[INFO] [stderr]     Checking num-iter v0.1.37
[INFO] [stderr]     Checking num-rational v0.1.42
[INFO] [stderr]     Checking rayon-core v1.4.1
[INFO] [stderr]     Checking png v0.12.0
[INFO] [stderr]     Checking rayon v1.0.2
[INFO] [stderr]    Compiling num-derive v0.2.2
[INFO] [stderr]     Checking jpeg-decoder v0.1.15
[INFO] [stderr]     Checking image v0.19.0
[INFO] [stderr]     Checking rayn v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: 5th binding whose name is just one char
[INFO] [stderr]   --> src/sphere.rs:39:21
[INFO] [stderr]    |
[INFO] [stderr] 39 |                 let p = ray.point_at(t);
[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/sphere.rs:40:25
[INFO] [stderr]    |
[INFO] [stderr] 40 |                 let mut n = p - self.orig();
[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/sphere.rs:46:21
[INFO] [stderr]    |
[INFO] [stderr] 46 |                 let p = ray.point_at(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: 6th binding whose name is just one char
[INFO] [stderr]   --> src/sphere.rs:47:25
[INFO] [stderr]    |
[INFO] [stderr] 47 |                 let mut n = p - self.orig();
[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/sphere.rs:39:21
[INFO] [stderr]    |
[INFO] [stderr] 39 |                 let p = ray.point_at(t);
[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/sphere.rs:40:25
[INFO] [stderr]    |
[INFO] [stderr] 40 |                 let mut n = p - self.orig();
[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/sphere.rs:46:21
[INFO] [stderr]    |
[INFO] [stderr] 46 |                 let p = ray.point_at(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: 6th binding whose name is just one char
[INFO] [stderr]   --> src/sphere.rs:47:25
[INFO] [stderr]    |
[INFO] [stderr] 47 |                 let mut n = p - self.orig();
[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: returning the result of a let binding from a block. Consider returning the expression directly.
[INFO] [stderr]   --> src/hitable.rs:64:9
[INFO] [stderr]    |
[INFO] [stderr] 64 |         ret
[INFO] [stderr]    |         ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::let_and_return)] on by default
[INFO] [stderr] note: this expression can be directly returned
[INFO] [stderr]   --> src/hitable.rs:47:19
[INFO] [stderr]    |
[INFO] [stderr] 47 |           let ret = self
[INFO] [stderr]    |  ___________________^
[INFO] [stderr] 48 | |             .iter()
[INFO] [stderr] 49 | |             .fold((None, t_range.end), |acc, hitable| {
[INFO] [stderr] 50 | |                 let mut closest = acc.1;
[INFO] [stderr] ...  |
[INFO] [stderr] 62 | |                 (hr, closest)
[INFO] [stderr] 63 | |             }).0;
[INFO] [stderr]    | |________________^
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#let_and_return
[INFO] [stderr] 
[INFO] [stderr] warning: You matched a field with a wildcard pattern. Consider using `..` instead
[INFO] [stderr]   --> src/hitable.rs:54:21
[INFO] [stderr]    |
[INFO] [stderr] 54 |                     p: _,
[INFO] [stderr]    |                     ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::unneeded_field_pattern)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unneeded_field_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: You matched a field with a wildcard pattern. Consider using `..` instead
[INFO] [stderr]   --> src/hitable.rs:55:21
[INFO] [stderr]    |
[INFO] [stderr] 55 |                     n: _,
[INFO] [stderr]    |                     ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unneeded_field_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: You matched a field with a wildcard pattern. Consider using `..` instead
[INFO] [stderr]   --> src/hitable.rs:56:21
[INFO] [stderr]    |
[INFO] [stderr] 56 |                     material: _,
[INFO] [stderr]    |                     ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: Try with `HitRecord { t, .. }`
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unneeded_field_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]    --> src/main.rs:138:16
[INFO] [stderr]     |
[INFO] [stderr] 138 |         if i % 100000 == 0 {
[INFO] [stderr]     |                ^^^^^^ help: consider: `100_000`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::unreadable_literal)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]    --> src/main.rs:142:63
[INFO] [stderr]     |
[INFO] [stderr] 142 |                 n as f32 / (DIMS.0 * DIMS.1) as f32 * 100.0 * 100000.0
[INFO] [stderr]     |                                                               ^^^^^^^^ help: consider: `100_000.0`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: returning the result of a let binding from a block. Consider returning the expression directly.
[INFO] [stderr]   --> src/hitable.rs:64:9
[INFO] [stderr]    |
[INFO] [stderr] 64 |         ret
[INFO] [stderr]    |         ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::let_and_return)] on by default
[INFO] [stderr] note: this expression can be directly returned
[INFO] [stderr]   --> src/hitable.rs:47:19
[INFO] [stderr]    |
[INFO] [stderr] 47 |           let ret = self
[INFO] [stderr]    |  ___________________^
[INFO] [stderr] 48 | |             .iter()
[INFO] [stderr] 49 | |             .fold((None, t_range.end), |acc, hitable| {
[INFO] [stderr] 50 | |                 let mut closest = acc.1;
[INFO] [stderr] ...  |
[INFO] [stderr] 62 | |                 (hr, closest)
[INFO] [stderr] 63 | |             }).0;
[INFO] [stderr]    | |________________^
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#let_and_return
[INFO] [stderr] 
[INFO] [stderr] warning: You matched a field with a wildcard pattern. Consider using `..` instead
[INFO] [stderr]   --> src/hitable.rs:54:21
[INFO] [stderr]    |
[INFO] [stderr] 54 |                     p: _,
[INFO] [stderr]    |                     ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::unneeded_field_pattern)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unneeded_field_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: You matched a field with a wildcard pattern. Consider using `..` instead
[INFO] [stderr]   --> src/hitable.rs:55:21
[INFO] [stderr]    |
[INFO] [stderr] 55 |                     n: _,
[INFO] [stderr]    |                     ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unneeded_field_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: You matched a field with a wildcard pattern. Consider using `..` instead
[INFO] [stderr]   --> src/hitable.rs:56:21
[INFO] [stderr]    |
[INFO] [stderr] 56 |                     material: _,
[INFO] [stderr]    |                     ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: Try with `HitRecord { t, .. }`
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unneeded_field_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]    --> src/main.rs:138:16
[INFO] [stderr]     |
[INFO] [stderr] 138 |         if i % 100000 == 0 {
[INFO] [stderr]     |                ^^^^^^ help: consider: `100_000`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::unreadable_literal)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]    --> src/main.rs:142:63
[INFO] [stderr]     |
[INFO] [stderr] 142 |                 n as f32 / (DIMS.0 * DIMS.1) as f32 * 100.0 * 100000.0
[INFO] [stderr]     |                                                               ^^^^^^^^ help: consider: `100_000.0`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: using `clone` on a `Copy` type
[INFO] [stderr]   --> src/camera.rs:20:18
[INFO] [stderr]    |
[INFO] [stderr] 20 |         Ray::new(self.origin.clone(), self.lower_left + self.full_size * uv)
[INFO] [stderr]    |                  ^^^^^^^^^^^^^^^^^^^ help: try removing the `clone` call: `self.origin`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::clone_on_copy)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_on_copy
[INFO] [stderr] 
[INFO] [stderr] warning: using `clone` on a `Copy` type
[INFO] [stderr]   --> src/material.rs:24:20
[INFO] [stderr]    |
[INFO] [stderr] 24 |         let norm = norm.clone();
[INFO] [stderr]    |                    ^^^^^^^^^^^^ help: try dereferencing it: `*norm`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_on_copy
[INFO] [stderr] 
[INFO] [stderr] warning: using `clone` on a `Copy` type
[INFO] [stderr]   --> src/material.rs:31:33
[INFO] [stderr]    |
[INFO] [stderr] 31 |             ray.dir().reflected(norm.clone()) + (Vec3::rand(&mut thread_rng()) * self.roughness)
[INFO] [stderr]    |                                 ^^^^^^^^^^^^ help: try removing the `clone` call: `norm`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_on_copy
[INFO] [stderr] 
[INFO] [stderr] warning: using `clone` on a `Copy` type
[INFO] [stderr]   --> src/material.rs:73:20
[INFO] [stderr]    |
[INFO] [stderr] 73 |         let norm = norm.clone();
[INFO] [stderr]    |                    ^^^^^^^^^^^^ help: try dereferencing it: `*norm`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_on_copy
[INFO] [stderr] 
[INFO] [stderr] warning: using `clone` on a `Copy` type
[INFO] [stderr]   --> src/material.rs:76:17
[INFO] [stderr]    |
[INFO] [stderr] 76 |                 norm.clone() * -1.0,
[INFO] [stderr]    |                 ^^^^^^^^^^^^ help: try removing the `clone` call: `norm`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_on_copy
[INFO] [stderr] 
[INFO] [stderr] warning: using `clone` on a `Copy` type
[INFO] [stderr]   --> src/material.rs:82:17
[INFO] [stderr]    |
[INFO] [stderr] 82 |                 norm.clone(),
[INFO] [stderr]    |                 ^^^^^^^^^^^^ help: try removing the `clone` call: `norm`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_on_copy
[INFO] [stderr] 
[INFO] [stderr] warning: using `clone` on a `Copy` type
[INFO] [stderr]   --> src/sphere.rs:31:23
[INFO] [stderr]    |
[INFO] [stderr] 31 |         let b = 2.0 * oc.clone().dot(ray.dir().clone());
[INFO] [stderr]    |                       ^^^^^^^^^^ help: try removing the `clone` call: `oc`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_on_copy
[INFO] [stderr] 
[INFO] [stderr] warning: using `clone` on a `Copy` type
[INFO] [stderr]   --> src/sphere.rs:32:17
[INFO] [stderr]    |
[INFO] [stderr] 32 |         let c = oc.clone().dot(oc) - self.rad * self.rad;
[INFO] [stderr]    |                 ^^^^^^^^^^ help: try removing the `clone` call: `oc`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_on_copy
[INFO] [stderr] 
[INFO] [stderr] warning: identical conversion
[INFO] [stderr]    --> src/main.rs:121:19
[INFO] [stderr]     |
[INFO] [stderr] 121 |           let col = (0..SAMPLES)
[INFO] [stderr]     |  ___________________^
[INFO] [stderr] 122 | |             .into_iter()
[INFO] [stderr]     | |________________________^ help: consider removing `.into_iter()`: `(0..SAMPLES)`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::identity_conversion)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#identity_conversion
[INFO] [stderr] 
[INFO] [stderr] warning: using `clone` on a `Copy` type
[INFO] [stderr]   --> src/camera.rs:20:18
[INFO] [stderr]    |
[INFO] [stderr] 20 |         Ray::new(self.origin.clone(), self.lower_left + self.full_size * uv)
[INFO] [stderr]    |                  ^^^^^^^^^^^^^^^^^^^ help: try removing the `clone` call: `self.origin`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::clone_on_copy)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_on_copy
[INFO] [stderr] 
[INFO] [stderr] warning: using `clone` on a `Copy` type
[INFO] [stderr]   --> src/material.rs:24:20
[INFO] [stderr]    |
[INFO] [stderr] 24 |         let norm = norm.clone();
[INFO] [stderr]    |                    ^^^^^^^^^^^^ help: try dereferencing it: `*norm`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_on_copy
[INFO] [stderr] 
[INFO] [stderr] warning: using `clone` on a `Copy` type
[INFO] [stderr]   --> src/material.rs:31:33
[INFO] [stderr]    |
[INFO] [stderr] 31 |             ray.dir().reflected(norm.clone()) + (Vec3::rand(&mut thread_rng()) * self.roughness)
[INFO] [stderr]    |                                 ^^^^^^^^^^^^ help: try removing the `clone` call: `norm`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_on_copy
[INFO] [stderr] 
[INFO] [stderr] warning: using `clone` on a `Copy` type
[INFO] [stderr]   --> src/material.rs:73:20
[INFO] [stderr]    |
[INFO] [stderr] 73 |         let norm = norm.clone();
[INFO] [stderr]    |                    ^^^^^^^^^^^^ help: try dereferencing it: `*norm`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_on_copy
[INFO] [stderr] 
[INFO] [stderr] warning: using `clone` on a `Copy` type
[INFO] [stderr]   --> src/material.rs:76:17
[INFO] [stderr]    |
[INFO] [stderr] 76 |                 norm.clone() * -1.0,
[INFO] [stderr]    |                 ^^^^^^^^^^^^ help: try removing the `clone` call: `norm`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_on_copy
[INFO] [stderr] 
[INFO] [stderr] warning: using `clone` on a `Copy` type
[INFO] [stderr]   --> src/material.rs:82:17
[INFO] [stderr]    |
[INFO] [stderr] 82 |                 norm.clone(),
[INFO] [stderr]    |                 ^^^^^^^^^^^^ help: try removing the `clone` call: `norm`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_on_copy
[INFO] [stderr] 
[INFO] [stderr] warning: using `clone` on a `Copy` type
[INFO] [stderr]   --> src/sphere.rs:31:23
[INFO] [stderr]    |
[INFO] [stderr] 31 |         let b = 2.0 * oc.clone().dot(ray.dir().clone());
[INFO] [stderr]    |                       ^^^^^^^^^^ help: try removing the `clone` call: `oc`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_on_copy
[INFO] [stderr] 
[INFO] [stderr] warning: using `clone` on a `Copy` type
[INFO] [stderr]   --> src/sphere.rs:32:17
[INFO] [stderr]    |
[INFO] [stderr] 32 |         let c = oc.clone().dot(oc) - self.rad * self.rad;
[INFO] [stderr]    |                 ^^^^^^^^^^ help: try removing the `clone` call: `oc`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_on_copy
[INFO] [stderr] 
[INFO] [stderr] warning: identical conversion
[INFO] [stderr]    --> src/main.rs:121:19
[INFO] [stderr]     |
[INFO] [stderr] 121 |           let col = (0..SAMPLES)
[INFO] [stderr]     |  ___________________^
[INFO] [stderr] 122 | |             .into_iter()
[INFO] [stderr]     | |________________________^ help: consider removing `.into_iter()`: `(0..SAMPLES)`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::identity_conversion)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#identity_conversion
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 27.79s
[INFO] running `"docker" "inspect" "9f71e6d0426b93e7ac9d507a62c5cc678659d29b37e73379186a6d3640c38f7d"`
[INFO] running `"docker" "rm" "-f" "9f71e6d0426b93e7ac9d507a62c5cc678659d29b37e73379186a6d3640c38f7d"`
[INFO] [stdout] 9f71e6d0426b93e7ac9d507a62c5cc678659d29b37e73379186a6d3640c38f7d