[INFO] updating cached repository lennyferguson/RustRay
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/lennyferguson/RustRay
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/lennyferguson/RustRay" "work/ex/clippy-test-run/sources/stable/gh/lennyferguson/RustRay"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/lennyferguson/RustRay'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/lennyferguson/RustRay" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/lennyferguson/RustRay"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/lennyferguson/RustRay'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 8c5f77cb27158cd779bc5316efe6c974356e77c6
[INFO] sha for GitHub repo lennyferguson/RustRay: 8c5f77cb27158cd779bc5316efe6c974356e77c6
[INFO] validating manifest of lennyferguson/RustRay 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 lennyferguson/RustRay 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 lennyferguson/RustRay
[INFO] finished frobbing lennyferguson/RustRay
[INFO] frobbed toml for lennyferguson/RustRay written to work/ex/clippy-test-run/sources/stable/gh/lennyferguson/RustRay/Cargo.toml
[INFO] started frobbing lennyferguson/RustRay
[INFO] finished frobbing lennyferguson/RustRay
[INFO] frobbed toml for lennyferguson/RustRay written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/lennyferguson/RustRay/Cargo.toml
[INFO] crate lennyferguson/RustRay 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 lennyferguson/RustRay against stable for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-3/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/gh/lennyferguson/RustRay:/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] b0fbb2242646da4ce7130de39a7d4f72f29d3f7bee41f164aaeea01e855d7cde
[INFO] running `"docker" "start" "-a" "b0fbb2242646da4ce7130de39a7d4f72f29d3f7bee41f164aaeea01e855d7cde"`
[INFO] [stderr]    Compiling either v1.3.0
[INFO] [stderr]     Checking bitflags v1.0.0
[INFO] [stderr]     Checking serde v1.0.17
[INFO] [stderr]    Compiling serde_json v0.9.10
[INFO] [stderr]     Checking rand v0.4.2
[INFO] [stderr]     Checking inflate v0.3.3
[INFO] [stderr]     Checking stb_truetype v0.2.2
[INFO] [stderr]    Compiling gl_generator v0.6.1
[INFO] [stderr]    Compiling gl_generator v0.7.0
[INFO] [stderr]     Checking num-bigint v0.1.37
[INFO] [stderr]    Compiling itertools v0.5.10
[INFO] [stderr]     Checking rusttype v0.2.3
[INFO] [stderr]    Compiling serde_derive v1.0.17
[INFO] [stderr]     Checking num-rational v0.1.36
[INFO] [stderr]    Compiling gl v0.6.5
[INFO] [stderr]    Compiling glutin v0.10.1
[INFO] [stderr]    Compiling derivative v1.0.0
[INFO] [stderr]    Compiling target_build_utils v0.3.1
[INFO] [stderr]    Compiling gfx_gl v0.4.0
[INFO] [stderr]     Checking num v0.1.37
[INFO] [stderr]     Checking png v0.11.0
[INFO] [stderr]     Checking nalgebra v0.5.1
[INFO] [stderr]     Checking piston2d-graphics v0.23.0
[INFO] [stderr]    Compiling libloading v0.3.4
[INFO] [stderr]     Checking image v0.17.0
[INFO] [stderr]     Checking gfx_core v0.7.2
[INFO] [stderr]     Checking pistoncore-input v0.20.0
[INFO] [stderr]     Checking dlib v0.3.1
[INFO] [stderr]     Checking wayland-sys v0.9.10
[INFO] [stderr]     Checking wayland-client v0.9.10
[INFO] [stderr]     Checking wayland-protocols v0.9.10
[INFO] [stderr]     Checking wayland-kbd v0.9.1
[INFO] [stderr]     Checking pistoncore-window v0.30.0
[INFO] [stderr]     Checking pistoncore-event_loop v0.35.0
[INFO] [stderr]     Checking piston v0.35.0
[INFO] [stderr]     Checking wayland-window v0.8.0
[INFO] [stderr]     Checking winit v0.8.3
[INFO] [stderr]     Checking pistoncore-glutin_window v0.42.1
[INFO] [stderr]     Checking gfx v0.16.3
[INFO] [stderr]     Checking gfx_device_gl v0.14.6
[INFO] [stderr]     Checking piston-gfx_texture v0.29.0
[INFO] [stderr]     Checking piston2d-gfx_graphics v0.46.0
[INFO] [stderr]     Checking piston_window v0.73.0
[INFO] [stderr]     Checking rust_ray v0.5.0 (/opt/crater/workdir)
[INFO] [stderr] warning: 5th binding whose name is just one char
[INFO] [stderr]    --> src/main.rs:542:13
[INFO] [stderr]     |
[INFO] [stderr] 542 |         let e = self.a.y - self.c.y;
[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/main.rs:543:13
[INFO] [stderr]     |
[INFO] [stderr] 543 |         let f = ray.dir.y;
[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: 7th binding whose name is just one char
[INFO] [stderr]    --> src/main.rs:544:13
[INFO] [stderr]     |
[INFO] [stderr] 544 |         let g = self.a.z - self.b.z;
[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: 8th binding whose name is just one char
[INFO] [stderr]    --> src/main.rs:545:13
[INFO] [stderr]     |
[INFO] [stderr] 545 |         let h = self.a.z - self.c.z;
[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: 9th binding whose name is just one char
[INFO] [stderr]    --> src/main.rs:546:13
[INFO] [stderr]     |
[INFO] [stderr] 546 |         let i = ray.dir.z;
[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: 10th binding whose name is just one char
[INFO] [stderr]    --> src/main.rs:548:13
[INFO] [stderr]     |
[INFO] [stderr] 548 |         let j = self.a.x - ray.src.x;
[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: 11th binding whose name is just one char
[INFO] [stderr]    --> src/main.rs:549:13
[INFO] [stderr]     |
[INFO] [stderr] 549 |         let k = self.a.y - ray.src.y;
[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: 12th binding whose name is just one char
[INFO] [stderr]    --> src/main.rs:550:13
[INFO] [stderr]     |
[INFO] [stderr] 550 |         let l = self.a.z - ray.src.z;
[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: 13th binding whose name is just one char
[INFO] [stderr]    --> src/main.rs:565:17
[INFO] [stderr]     |
[INFO] [stderr] 565 |         let mut t = a * elhk - b * dlgk + j * dheg;
[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/main.rs:542:13
[INFO] [stderr]     |
[INFO] [stderr] 542 |         let e = self.a.y - self.c.y;
[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/main.rs:543:13
[INFO] [stderr]     |
[INFO] [stderr] 543 |         let f = ray.dir.y;
[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: 7th binding whose name is just one char
[INFO] [stderr]    --> src/main.rs:544:13
[INFO] [stderr]     |
[INFO] [stderr] 544 |         let g = self.a.z - self.b.z;
[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: 8th binding whose name is just one char
[INFO] [stderr]    --> src/main.rs:545:13
[INFO] [stderr]     |
[INFO] [stderr] 545 |         let h = self.a.z - self.c.z;
[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: 9th binding whose name is just one char
[INFO] [stderr]    --> src/main.rs:546:13
[INFO] [stderr]     |
[INFO] [stderr] 546 |         let i = ray.dir.z;
[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: 10th binding whose name is just one char
[INFO] [stderr]    --> src/main.rs:548:13
[INFO] [stderr]     |
[INFO] [stderr] 548 |         let j = self.a.x - ray.src.x;
[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: 11th binding whose name is just one char
[INFO] [stderr]    --> src/main.rs:549:13
[INFO] [stderr]     |
[INFO] [stderr] 549 |         let k = self.a.y - ray.src.y;
[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: 12th binding whose name is just one char
[INFO] [stderr]    --> src/main.rs:550:13
[INFO] [stderr]     |
[INFO] [stderr] 550 |         let l = self.a.z - ray.src.z;
[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: 13th binding whose name is just one char
[INFO] [stderr]    --> src/main.rs:565:17
[INFO] [stderr]     |
[INFO] [stderr] 565 |         let mut t = a * elhk - b * dlgk + j * dheg;
[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: unused import: `rand::Rng`
[INFO] [stderr]   --> src/main.rs:17:5
[INFO] [stderr]    |
[INFO] [stderr] 17 | use rand::Rng;
[INFO] [stderr]    |     ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]   --> src/main.rs:29:16
[INFO] [stderr]    |
[INFO] [stderr] 29 | const T1:f32 = 100000.0;
[INFO] [stderr]    |                ^^^^^^^^ help: consider: `100_000.0`
[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:87:40
[INFO] [stderr]    |
[INFO] [stderr] 87 |     let brass = Material{amb:Vec3::new(0.329412, 0.223529, 0.027451), reflect:0.0};
[INFO] [stderr]    |                                        ^^^^^^^^ help: consider: `0.329_412`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]   --> src/main.rs:87:50
[INFO] [stderr]    |
[INFO] [stderr] 87 |     let brass = Material{amb:Vec3::new(0.329412, 0.223529, 0.027451), reflect:0.0};
[INFO] [stderr]    |                                                  ^^^^^^^^ help: consider: `0.223_529`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]   --> src/main.rs:87:60
[INFO] [stderr]    |
[INFO] [stderr] 87 |     let brass = Material{amb:Vec3::new(0.329412, 0.223529, 0.027451), reflect:0.0};
[INFO] [stderr]    |                                                            ^^^^^^^^ help: consider: `0.027_451`
[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: unneeded return statement
[INFO] [stderr]    --> src/main.rs:638:5
[INFO] [stderr]     |
[INFO] [stderr] 638 |     return if num < 0.0 { 0.0 as f32 } else { num as f32 }
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `if num < 0.0 { 0.0 as f32 } else { num as f32 }`
[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: casting i32 to f64 may become silently lossy if types change
[INFO] [stderr]    --> src/main.rs:231:36
[INFO] [stderr]     |
[INFO] [stderr] 231 |                                   [x as f64, (HALFDIM - y) as f64, 1.0, 1.0],
[INFO] [stderr]     |                                    ^^^^^^^^ help: try: `f64::from(x)`
[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/main.rs:231:46
[INFO] [stderr]     |
[INFO] [stderr] 231 |                                   [x as f64, (HALFDIM - y) as f64, 1.0, 1.0],
[INFO] [stderr]     |                                              ^^^^^^^^^^^^^^^^^^^^ help: try: `f64::from(HALFDIM - 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: you seem to be trying to use match for destructuring a single pattern. Consider using `if let`
[INFO] [stderr]    --> src/main.rs:269:17
[INFO] [stderr]     |
[INFO] [stderr] 269 | /                 match test {
[INFO] [stderr] 270 | |                     Some(t) => {
[INFO] [stderr] 271 | |                         if t < near_t {
[INFO] [stderr] 272 | |                             near_t = t;
[INFO] [stderr] ...   |
[INFO] [stderr] 276 | |                     None => { }
[INFO] [stderr] 277 | |                 }
[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] 269 |                 if let Some(t) = test {
[INFO] [stderr] 270 |     if t < near_t {
[INFO] [stderr] 271 |         near_t = t;
[INFO] [stderr] 272 |         near_surf = Some(s);
[INFO] [stderr] 273 |     }
[INFO] [stderr] 274 | }
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: you seem to be trying to use match for destructuring a single pattern. Consider using `if let`
[INFO] [stderr]    --> src/main.rs:309:13
[INFO] [stderr]     |
[INFO] [stderr] 309 | /             match test {
[INFO] [stderr] 310 | |                 Some(_) => { count += 1; }
[INFO] [stderr] 311 | |                 None => { /* Ignore */ }
[INFO] [stderr] 312 | |             }
[INFO] [stderr]     | |_____________^ help: try this: `if let Some(_) = test { count += 1; }`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stderr] 
[INFO] [stderr] warning: you seem to be trying to use match for destructuring a single pattern. Consider using `if let`
[INFO] [stderr]    --> src/main.rs:337:9
[INFO] [stderr]     |
[INFO] [stderr] 337 | /         match test {
[INFO] [stderr] 338 | |             Some(t) => {
[INFO] [stderr] 339 | |                 if t < current {
[INFO] [stderr] 340 | |                     current = t;
[INFO] [stderr] ...   |
[INFO] [stderr] 344 | |             None => { }
[INFO] [stderr] 345 | |         }
[INFO] [stderr]     | |_________^
[INFO] [stderr]     |
[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] 337 |         if let Some(t) = test {
[INFO] [stderr] 338 |     if t < current {
[INFO] [stderr] 339 |         current = t;
[INFO] [stderr] 340 |         near_surf = Some(surf);
[INFO] [stderr] 341 |     }
[INFO] [stderr] 342 | }
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `rand::Rng`
[INFO] [stderr]   --> src/main.rs:17:5
[INFO] [stderr]    |
[INFO] [stderr] 17 | use rand::Rng;
[INFO] [stderr]    |     ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]   --> src/main.rs:29:16
[INFO] [stderr]    |
[INFO] [stderr] 29 | const T1:f32 = 100000.0;
[INFO] [stderr]    |                ^^^^^^^^ help: consider: `100_000.0`
[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:87:40
[INFO] [stderr]    |
[INFO] [stderr] 87 |     let brass = Material{amb:Vec3::new(0.329412, 0.223529, 0.027451), reflect:0.0};
[INFO] [stderr]    |                                        ^^^^^^^^ help: consider: `0.329_412`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]   --> src/main.rs:87:50
[INFO] [stderr]    |
[INFO] [stderr] 87 |     let brass = Material{amb:Vec3::new(0.329412, 0.223529, 0.027451), reflect:0.0};
[INFO] [stderr]    |                                                  ^^^^^^^^ help: consider: `0.223_529`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]   --> src/main.rs:87:60
[INFO] [stderr]    |
[INFO] [stderr] 87 |     let brass = Material{amb:Vec3::new(0.329412, 0.223529, 0.027451), reflect:0.0};
[INFO] [stderr]    |                                                            ^^^^^^^^ help: consider: `0.027_451`
[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: unneeded return statement
[INFO] [stderr]    --> src/main.rs:638:5
[INFO] [stderr]     |
[INFO] [stderr] 638 |     return if num < 0.0 { 0.0 as f32 } else { num as f32 }
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `if num < 0.0 { 0.0 as f32 } else { num as f32 }`
[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: casting i32 to f64 may become silently lossy if types change
[INFO] [stderr]    --> src/main.rs:231:36
[INFO] [stderr]     |
[INFO] [stderr] 231 |                                   [x as f64, (HALFDIM - y) as f64, 1.0, 1.0],
[INFO] [stderr]     |                                    ^^^^^^^^ help: try: `f64::from(x)`
[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/main.rs:231:46
[INFO] [stderr]     |
[INFO] [stderr] 231 |                                   [x as f64, (HALFDIM - y) as f64, 1.0, 1.0],
[INFO] [stderr]     |                                              ^^^^^^^^^^^^^^^^^^^^ help: try: `f64::from(HALFDIM - 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: you seem to be trying to use match for destructuring a single pattern. Consider using `if let`
[INFO] [stderr]    --> src/main.rs:269:17
[INFO] [stderr]     |
[INFO] [stderr] 269 | /                 match test {
[INFO] [stderr] 270 | |                     Some(t) => {
[INFO] [stderr] 271 | |                         if t < near_t {
[INFO] [stderr] 272 | |                             near_t = t;
[INFO] [stderr] ...   |
[INFO] [stderr] 276 | |                     None => { }
[INFO] [stderr] 277 | |                 }
[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] 269 |                 if let Some(t) = test {
[INFO] [stderr] 270 |     if t < near_t {
[INFO] [stderr] 271 |         near_t = t;
[INFO] [stderr] 272 |         near_surf = Some(s);
[INFO] [stderr] 273 |     }
[INFO] [stderr] 274 | }
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: you seem to be trying to use match for destructuring a single pattern. Consider using `if let`
[INFO] [stderr]    --> src/main.rs:309:13
[INFO] [stderr]     |
[INFO] [stderr] 309 | /             match test {
[INFO] [stderr] 310 | |                 Some(_) => { count += 1; }
[INFO] [stderr] 311 | |                 None => { /* Ignore */ }
[INFO] [stderr] 312 | |             }
[INFO] [stderr]     | |_____________^ help: try this: `if let Some(_) = test { count += 1; }`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stderr] 
[INFO] [stderr] warning: you seem to be trying to use match for destructuring a single pattern. Consider using `if let`
[INFO] [stderr]    --> src/main.rs:337:9
[INFO] [stderr]     |
[INFO] [stderr] 337 | /         match test {
[INFO] [stderr] 338 | |             Some(t) => {
[INFO] [stderr] 339 | |                 if t < current {
[INFO] [stderr] 340 | |                     current = t;
[INFO] [stderr] ...   |
[INFO] [stderr] 344 | |             None => { }
[INFO] [stderr] 345 | |         }
[INFO] [stderr]     | |_________^
[INFO] [stderr]     |
[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] 337 |         if let Some(t) = test {
[INFO] [stderr] 338 |     if t < current {
[INFO] [stderr] 339 |         current = t;
[INFO] [stderr] 340 |         near_surf = Some(surf);
[INFO] [stderr] 341 |     }
[INFO] [stderr] 342 | }
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 45s
[INFO] running `"docker" "inspect" "b0fbb2242646da4ce7130de39a7d4f72f29d3f7bee41f164aaeea01e855d7cde"`
[INFO] running `"docker" "rm" "-f" "b0fbb2242646da4ce7130de39a7d4f72f29d3f7bee41f164aaeea01e855d7cde"`
[INFO] [stdout] b0fbb2242646da4ce7130de39a7d4f72f29d3f7bee41f164aaeea01e855d7cde