[INFO] updating cached repository Herschel/quaternion-demo
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/Herschel/quaternion-demo
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/Herschel/quaternion-demo" "work/ex/clippy-test-run/sources/stable/gh/Herschel/quaternion-demo"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/Herschel/quaternion-demo'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/Herschel/quaternion-demo" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/Herschel/quaternion-demo"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/Herschel/quaternion-demo'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] ad83c722a4ea3205c51bff3c49a1e4a65c6ac095
[INFO] sha for GitHub repo Herschel/quaternion-demo: ad83c722a4ea3205c51bff3c49a1e4a65c6ac095
[INFO] validating manifest of Herschel/quaternion-demo 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 Herschel/quaternion-demo 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 Herschel/quaternion-demo
[INFO] finished frobbing Herschel/quaternion-demo
[INFO] frobbed toml for Herschel/quaternion-demo written to work/ex/clippy-test-run/sources/stable/gh/Herschel/quaternion-demo/Cargo.toml
[INFO] started frobbing Herschel/quaternion-demo
[INFO] finished frobbing Herschel/quaternion-demo
[INFO] frobbed toml for Herschel/quaternion-demo written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/Herschel/quaternion-demo/Cargo.toml
[INFO] crate Herschel/quaternion-demo 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 Herschel/quaternion-demo 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/Herschel/quaternion-demo:/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] a6920ae6a9e4d9807d9a024a6a19c36144af4ecd7b2f795e73eca8f0467bcd1f
[INFO] running `"docker" "start" "-a" "a6920ae6a9e4d9807d9a024a6a19c36144af4ecd7b2f795e73eca8f0467bcd1f"`
[INFO] [stderr]     Checking rand v0.5.1
[INFO] [stderr]     Checking conrod v0.60.0
[INFO] [stderr]     Checking nalgebra v0.15.3
[INFO] [stderr]     Checking quaternion-demo v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: 5th binding whose name is just one char
[INFO] [stderr]   --> src/quaternion.rs:62:13
[INFO] [stderr]    |
[INFO] [stderr] 62 |         let w = self.w;
[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/quaternion.rs:62:13
[INFO] [stderr]    |
[INFO] [stderr] 62 |         let w = self.w;
[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 if statement can be collapsed
[INFO] [stderr]    --> src/quaternion.rs:170:9
[INFO] [stderr]     |
[INFO] [stderr] 170 | /         if (a.x-b.x).abs() >= EPSILON || (a.y-b.y).abs() >= EPSILON || (a.z- b.z).abs() >= EPSILON || (a.w-b.w).abs() >= EPSILON {
[INFO] [stderr] 171 | |             if (a.x+b.x).abs() >= EPSILON || (a.y+b.y).abs() >= EPSILON || (a.z+b.z).abs() >= EPSILON || (a.w+b.w).abs() >= EPSILON {
[INFO] [stderr] 172 | |                 panic!("Not equal: {:?} {:?}", a, b);
[INFO] [stderr] 173 | |             }
[INFO] [stderr] 174 | |         }
[INFO] [stderr]     | |_________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::collapsible_if)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#collapsible_if
[INFO] [stderr] help: try
[INFO] [stderr]     |
[INFO] [stderr] 170 |         if ((a.x-b.x).abs() >= EPSILON || (a.y-b.y).abs() >= EPSILON || (a.z- b.z).abs() >= EPSILON || (a.w-b.w).abs() >= EPSILON) && ((a.x+b.x).abs() >= EPSILON || (a.y+b.y).abs() >= EPSILON || (a.z+b.z).abs() >= EPSILON || (a.w+b.w).abs() >= EPSILON) {
[INFO] [stderr] 171 |     panic!("Not equal: {:?} {:?}", a, b);
[INFO] [stderr] 172 | }
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]    --> src/quaternion.rs:220:23
[INFO] [stderr]     |
[INFO] [stderr] 220 |         let sqrt2_2 = 0.707107;
[INFO] [stderr]     |                       ^^^^^^^^ help: consider: `0.707_107`
[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/quaternion.rs:251:44
[INFO] [stderr]     |
[INFO] [stderr] 251 |         assert_rot_eq(p*q, Quaternion { x: 0.17043722, y: 0.3202073, z: 0.185343, w: 0.9132724 });
[INFO] [stderr]     |                                            ^^^^^^^^^^ help: consider: `0.170_437_22`
[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/quaternion.rs:251:59
[INFO] [stderr]     |
[INFO] [stderr] 251 |         assert_rot_eq(p*q, Quaternion { x: 0.17043722, y: 0.3202073, z: 0.185343, w: 0.9132724 });
[INFO] [stderr]     |                                                           ^^^^^^^^^ help: consider: `0.320_207_3`
[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/quaternion.rs:251:73
[INFO] [stderr]     |
[INFO] [stderr] 251 |         assert_rot_eq(p*q, Quaternion { x: 0.17043722, y: 0.3202073, z: 0.185343, w: 0.9132724 });
[INFO] [stderr]     |                                                                         ^^^^^^^^ help: consider: `0.185_343`
[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/quaternion.rs:251:86
[INFO] [stderr]     |
[INFO] [stderr] 251 |         assert_rot_eq(p*q, Quaternion { x: 0.17043722, y: 0.3202073, z: 0.185343, w: 0.9132724 });
[INFO] [stderr]     |                                                                                      ^^^^^^^^^ help: consider: `0.913_272_4`
[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/quaternion.rs:283:56
[INFO] [stderr]     |
[INFO] [stderr] 283 |         assert_rot_eq(p.slerp(q, 0.9), Quaternion { x: 0.0060857176, y: 0.9921862, z: -0.05777763, w: -0.11041405 });
[INFO] [stderr]     |                                                        ^^^^^^^^^^^^ help: consider: `0.006_085_717_6`
[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/quaternion.rs:283:73
[INFO] [stderr]     |
[INFO] [stderr] 283 |         assert_rot_eq(p.slerp(q, 0.9), Quaternion { x: 0.0060857176, y: 0.9921862, z: -0.05777763, w: -0.11041405 });
[INFO] [stderr]     |                                                                         ^^^^^^^^^ help: consider: `0.992_186_2`
[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/quaternion.rs:283:88
[INFO] [stderr]     |
[INFO] [stderr] 283 |         assert_rot_eq(p.slerp(q, 0.9), Quaternion { x: 0.0060857176, y: 0.9921862, z: -0.05777763, w: -0.11041405 });
[INFO] [stderr]     |                                                                                        ^^^^^^^^^^ help: consider: `0.057_777_63`
[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/quaternion.rs:283:104
[INFO] [stderr]     |
[INFO] [stderr] 283 |         assert_rot_eq(p.slerp(q, 0.9), Quaternion { x: 0.0060857176, y: 0.9921862, z: -0.05777763, w: -0.11041405 });
[INFO] [stderr]     |                                                                                                        ^^^^^^^^^^ help: consider: `0.110_414_05`
[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: Constants have by default a `'static` lifetime
[INFO] [stderr]    --> src/main.rs:111:23
[INFO] [stderr]     |
[INFO] [stderr] 111 |     const FONT_PATH: &'static str =
[INFO] [stderr]     |                      -^^^^^^^---- help: consider removing `'static`: `&str`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::const_static_lifetime)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#const_static_lifetime
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `p`
[INFO] [stderr]    --> src/quaternion.rs:281:13
[INFO] [stderr]     |
[INFO] [stderr] 281 |         let p = Quaternion::from_euler_angles(0.2, 0.4, 3.1 * PI);
[INFO] [stderr]     |             ^ help: consider using `_p` instead
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `RED`
[INFO] [stderr]    --> src/main.rs:405:5
[INFO] [stderr]     |
[INFO] [stderr] 405 |     const RED: [f32; 4] = [1.0, 0.0, 0.0, 1.0];
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `GREEN`
[INFO] [stderr]    --> src/main.rs:406:5
[INFO] [stderr]     |
[INFO] [stderr] 406 |     const GREEN: [f32; 4] = [0.0, 1.0, 0.0, 1.0];
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `BLUE`
[INFO] [stderr]    --> src/main.rs:407:5
[INFO] [stderr]     |
[INFO] [stderr] 407 |     const BLUE: [f32; 4] = [0.0, 0.0, 1.0, 1.0];
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: strict comparison of f32 or f64
[INFO] [stderr]    --> src/quaternion.rs:184:9
[INFO] [stderr]     |
[INFO] [stderr] 184 |         assert_eq!(Quaternion::identity().len(), 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/quaternion.rs:184:9
[INFO] [stderr]     |
[INFO] [stderr] 184 |         assert_eq!(Quaternion::identity().len(), 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/quaternion.rs:185:9
[INFO] [stderr]     |
[INFO] [stderr] 185 |         assert_eq!(Quaternion { x: 2.0, y: 2.0, z: 2.0, w: 2.0 }.len(), 4.0);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr] note: std::f32::EPSILON and std::f64::EPSILON are available.
[INFO] [stderr]    --> src/quaternion.rs:185:9
[INFO] [stderr]     |
[INFO] [stderr] 185 |         assert_eq!(Quaternion { x: 2.0, y: 2.0, z: 2.0, w: 2.0 }.len(), 4.0);
[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: approximate value of `f{32, 64}::consts::FRAC_1_SQRT_2` found. Consider using it directly
[INFO] [stderr]    --> src/quaternion.rs:220:23
[INFO] [stderr]     |
[INFO] [stderr] 220 |         let sqrt2_2 = 0.707107;
[INFO] [stderr]     |                       ^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[deny(clippy::approx_constant)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#approx_constant
[INFO] [stderr] 
[INFO] [stderr] error: approximate value of `f{32, 64}::consts::PI` found. Consider using it directly
[INFO] [stderr]   --> src/main.rs:72:62
[INFO] [stderr]    |
[INFO] [stderr] 72 |             projection: Matrix4::new_perspective(16.0 / 9.0, 3.14 / 4.0, 1.0, 1000.0),
[INFO] [stderr]    |                                                              ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#approx_constant
[INFO] [stderr] 
[INFO] [stderr] warning: casting u32 to f64 may become silently lossy if types change
[INFO] [stderr]   --> src/main.rs:91:42
[INFO] [stderr]    |
[INFO] [stderr] 91 |     let mut ui = conrod::UiBuilder::new([WIDTH as f64, HEIGHT as f64]).build();
[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/main.rs:91:56
[INFO] [stderr]    |
[INFO] [stderr] 91 |     let mut ui = conrod::UiBuilder::new([WIDTH as f64, HEIGHT as f64]).build();
[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: you seem to be trying to use match for destructuring a single pattern. Consider using `if let`
[INFO] [stderr]    --> src/main.rs:150:13
[INFO] [stderr]     |
[INFO] [stderr] 150 | /             match event.clone() {
[INFO] [stderr] 151 | |                 glium::glutin::Event::WindowEvent { event, .. } => {
[INFO] [stderr] 152 | |                     match event {
[INFO] [stderr] 153 | |                         glium::glutin::WindowEvent::Closed |
[INFO] [stderr] ...   |
[INFO] [stderr] 164 | |                 _ => (),
[INFO] [stderr] 165 | |             };
[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] 150 |             if let glium::glutin::Event::WindowEvent { event, .. } = event.clone() {
[INFO] [stderr] 151 |     match event {
[INFO] [stderr] 152 |         glium::glutin::WindowEvent::Closed |
[INFO] [stderr] 153 |         glium::glutin::WindowEvent::KeyboardInput {
[INFO] [stderr] 154 |             input: glium::glutin::KeyboardInput {
[INFO] [stderr] 155 |                 virtual_keycode: Some(glium::glutin::VirtualKeyCode::Escape),
[INFO] [stderr]   ...
[INFO] [stderr] 
[INFO] [stderr] error: for loop over `Slider::new(euler_angles[0].to_degrees(), 0.0, 360.0)
[INFO] [stderr]                     .label("Yaw")
[INFO] [stderr]                     .label_color(color::RED)
[INFO] [stderr]                     .padded_w_of(ids.canvas, PAD)
[INFO] [stderr]                     .h(30.0)
[INFO] [stderr]                     .set(ids.yaw, ui)`, which is an `Option`. This is more readably written as an `if let` statement.
[INFO] [stderr]    --> src/main.rs:215:30
[INFO] [stderr]     |
[INFO] [stderr] 215 |                   for value in Slider::new(euler_angles[0].to_degrees(), 0.0, 360.0)
[INFO] [stderr]     |  ______________________________^
[INFO] [stderr] 216 | |                     .label("Yaw")
[INFO] [stderr] 217 | |                     .label_color(color::RED)
[INFO] [stderr] 218 | |                     .padded_w_of(ids.canvas, PAD)
[INFO] [stderr] 219 | |                     .h(30.0)
[INFO] [stderr] 220 | |                     .set(ids.yaw, ui)
[INFO] [stderr]     | |_____________________________________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[deny(clippy::for_loop_over_option)] on by default
[INFO] [stderr]     = help: consider replacing `for value in Slider::new(euler_angles[0].to_degrees(), 0.0, 360.0)
[INFO] [stderr]                                 .label("Yaw")
[INFO] [stderr]                                 .label_color(color::RED)
[INFO] [stderr]                                 .padded_w_of(ids.canvas, PAD)
[INFO] [stderr]                                 .h(30.0)
[INFO] [stderr]                                 .set(ids.yaw, ui)` with `if let Some(value) = Slider::new(euler_angles[0].to_degrees(), 0.0, 360.0)
[INFO] [stderr]                                 .label("Yaw")
[INFO] [stderr]                                 .label_color(color::RED)
[INFO] [stderr]                                 .padded_w_of(ids.canvas, PAD)
[INFO] [stderr]                                 .h(30.0)
[INFO] [stderr]                                 .set(ids.yaw, ui)`
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#for_loop_over_option
[INFO] [stderr] 
[INFO] [stderr] error: for loop over `Slider::new(euler_angles[1].to_degrees(), 0.0, 360.0)
[INFO] [stderr]                     .label("Pitch")
[INFO] [stderr]                     .label_color(color::RED)
[INFO] [stderr]                     .padded_w_of(ids.canvas, PAD)
[INFO] [stderr]                     .h(30.0)
[INFO] [stderr]                     .set(ids.pitch, ui)`, which is an `Option`. This is more readably written as an `if let` statement.
[INFO] [stderr]    --> src/main.rs:227:30
[INFO] [stderr]     |
[INFO] [stderr] 227 |                   for value in Slider::new(euler_angles[1].to_degrees(), 0.0, 360.0)
[INFO] [stderr]     |  ______________________________^
[INFO] [stderr] 228 | |                     .label("Pitch")
[INFO] [stderr] 229 | |                     .label_color(color::RED)
[INFO] [stderr] 230 | |                     .padded_w_of(ids.canvas, PAD)
[INFO] [stderr] 231 | |                     .h(30.0)
[INFO] [stderr] 232 | |                     .set(ids.pitch, ui)
[INFO] [stderr]     | |_______________________________________^
[INFO] [stderr]     |
[INFO] [stderr]     = help: consider replacing `for value in Slider::new(euler_angles[1].to_degrees(), 0.0, 360.0)
[INFO] [stderr]                                 .label("Pitch")
[INFO] [stderr]                                 .label_color(color::RED)
[INFO] [stderr]                                 .padded_w_of(ids.canvas, PAD)
[INFO] [stderr]                                 .h(30.0)
[INFO] [stderr]                                 .set(ids.pitch, ui)` with `if let Some(value) = Slider::new(euler_angles[1].to_degrees(), 0.0, 360.0)
[INFO] [stderr]                                 .label("Pitch")
[INFO] [stderr]                                 .label_color(color::RED)
[INFO] [stderr]                                 .padded_w_of(ids.canvas, PAD)
[INFO] [stderr]                                 .h(30.0)
[INFO] [stderr]                                 .set(ids.pitch, ui)`
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#for_loop_over_option
[INFO] [stderr] 
[INFO] [stderr] error: for loop over `Slider::new(euler_angles[2].to_degrees(), 0.0, 360.0)
[INFO] [stderr]                     .label("Roll")
[INFO] [stderr]                     .label_color(color::RED)
[INFO] [stderr] 
[INFO] [stderr]                     .padded_w_of(ids.canvas, PAD)
[INFO] [stderr]                     .h(30.0)
[INFO] [stderr]                     .set(ids.roll, ui)`, which is an `Option`. This is more readably written as an `if let` statement.
[INFO] [stderr]    --> src/main.rs:239:30
[INFO] [stderr]     |
[INFO] [stderr] 239 |                   for value in Slider::new(euler_angles[2].to_degrees(), 0.0, 360.0)
[INFO] [stderr]     |  ______________________________^
[INFO] [stderr] 240 | |                     .label("Roll")
[INFO] [stderr] 241 | |                     .label_color(color::RED)
[INFO] [stderr] 242 | |
[INFO] [stderr] 243 | |                     .padded_w_of(ids.canvas, PAD)
[INFO] [stderr] 244 | |                     .h(30.0)
[INFO] [stderr] 245 | |                     .set(ids.roll, ui)
[INFO] [stderr]     | |______________________________________^
[INFO] [stderr]     |
[INFO] [stderr]     = help: consider replacing `for value in Slider::new(euler_angles[2].to_degrees(), 0.0, 360.0)
[INFO] [stderr]                                 .label("Roll")
[INFO] [stderr]                                 .label_color(color::RED)
[INFO] [stderr]             
[INFO] [stderr]                                 .padded_w_of(ids.canvas, PAD)
[INFO] [stderr]                                 .h(30.0)
[INFO] [stderr]                                 .set(ids.roll, ui)` with `if let Some(value) = Slider::new(euler_angles[2].to_degrees(), 0.0, 360.0)
[INFO] [stderr]                                 .label("Roll")
[INFO] [stderr]                                 .label_color(color::RED)
[INFO] [stderr]             
[INFO] [stderr]                                 .padded_w_of(ids.canvas, PAD)
[INFO] [stderr]                                 .h(30.0)
[INFO] [stderr]                                 .set(ids.roll, ui)`
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#for_loop_over_option
[INFO] [stderr] 
[INFO] [stderr] error: for loop over `Slider::new(axis[0], 0.0, 1.0)
[INFO] [stderr]                     .label("Axis X")
[INFO] [stderr]                     .label_color(color::RED)
[INFO] [stderr] 
[INFO] [stderr]                     .padded_w_of(ids.canvas, PAD)
[INFO] [stderr]                     .h(30.0)
[INFO] [stderr]                     .set(ids.axis_x, ui)`, which is an `Option`. This is more readably written as an `if let` statement.
[INFO] [stderr]    --> src/main.rs:252:30
[INFO] [stderr]     |
[INFO] [stderr] 252 |                   for value in Slider::new(axis[0], 0.0, 1.0)
[INFO] [stderr]     |  ______________________________^
[INFO] [stderr] 253 | |                     .label("Axis X")
[INFO] [stderr] 254 | |                     .label_color(color::RED)
[INFO] [stderr] 255 | |
[INFO] [stderr] 256 | |                     .padded_w_of(ids.canvas, PAD)
[INFO] [stderr] 257 | |                     .h(30.0)
[INFO] [stderr] 258 | |                     .set(ids.axis_x, ui)
[INFO] [stderr]     | |________________________________________^
[INFO] [stderr]     |
[INFO] [stderr]     = help: consider replacing `for value in Slider::new(axis[0], 0.0, 1.0)
[INFO] [stderr]                                 .label("Axis X")
[INFO] [stderr]                                 .label_color(color::RED)
[INFO] [stderr]             
[INFO] [stderr]                                 .padded_w_of(ids.canvas, PAD)
[INFO] [stderr]                                 .h(30.0)
[INFO] [stderr]                                 .set(ids.axis_x, ui)` with `if let Some(value) = Slider::new(axis[0], 0.0, 1.0)
[INFO] [stderr]                                 .label("Axis X")
[INFO] [stderr]                                 .label_color(color::RED)
[INFO] [stderr]             
[INFO] [stderr]                                 .padded_w_of(ids.canvas, PAD)
[INFO] [stderr]                                 .h(30.0)
[INFO] [stderr]                                 .set(ids.axis_x, ui)`
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#for_loop_over_option
[INFO] [stderr] 
[INFO] [stderr] warning: using `clone` on a `Copy` type
[INFO] [stderr]    --> src/main.rs:261:29
[INFO] [stderr]     |
[INFO] [stderr] 261 |                     let n = axis.clone().normalize();
[INFO] [stderr]     |                             ^^^^^^^^^^^^ help: try removing the `clone` call: `axis`
[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] error: for loop over `Slider::new(axis[1], 0.0, 1.0)
[INFO] [stderr]                     .label("Axis Y")
[INFO] [stderr]                     .label_color(color::RED)
[INFO] [stderr] 
[INFO] [stderr]                     .padded_w_of(ids.canvas, PAD)
[INFO] [stderr]                     .h(30.0)
[INFO] [stderr]                     .set(ids.axis_y, ui)`, which is an `Option`. This is more readably written as an `if let` statement.
[INFO] [stderr]    --> src/main.rs:266:30
[INFO] [stderr]     |
[INFO] [stderr] 266 |                   for value in Slider::new(axis[1], 0.0, 1.0)
[INFO] [stderr]     |  ______________________________^
[INFO] [stderr] 267 | |                     .label("Axis Y")
[INFO] [stderr] 268 | |                     .label_color(color::RED)
[INFO] [stderr] 269 | |
[INFO] [stderr] 270 | |                     .padded_w_of(ids.canvas, PAD)
[INFO] [stderr] 271 | |                     .h(30.0)
[INFO] [stderr] 272 | |                     .set(ids.axis_y, ui)
[INFO] [stderr]     | |________________________________________^
[INFO] [stderr]     |
[INFO] [stderr]     = help: consider replacing `for value in Slider::new(axis[1], 0.0, 1.0)
[INFO] [stderr]                                 .label("Axis Y")
[INFO] [stderr]                                 .label_color(color::RED)
[INFO] [stderr]             
[INFO] [stderr]                                 .padded_w_of(ids.canvas, PAD)
[INFO] [stderr]                                 .h(30.0)
[INFO] [stderr]                                 .set(ids.axis_y, ui)` with `if let Some(value) = Slider::new(axis[1], 0.0, 1.0)
[INFO] [stderr]                                 .label("Axis Y")
[INFO] [stderr]                                 .label_color(color::RED)
[INFO] [stderr]             
[INFO] [stderr]                                 .padded_w_of(ids.canvas, PAD)
[INFO] [stderr]                                 .h(30.0)
[INFO] [stderr]                                 .set(ids.axis_y, ui)`
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#for_loop_over_option
[INFO] [stderr] 
[INFO] [stderr] warning: using `clone` on a `Copy` type
[INFO] [stderr]    --> src/main.rs:275:29
[INFO] [stderr]     |
[INFO] [stderr] 275 |                     let n = axis.clone().normalize();
[INFO] [stderr]     |                             ^^^^^^^^^^^^ help: try removing the `clone` call: `axis`
[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] error: for loop over `Slider::new(axis[2], 0.0, 1.0)
[INFO] [stderr]                     .label("Axis Z")
[INFO] [stderr]                     .label_color(color::RED)
[INFO] [stderr] 
[INFO] [stderr]                     .padded_w_of(ids.canvas, PAD)
[INFO] [stderr]                     .h(30.0)
[INFO] [stderr]                     .set(ids.axis_z, ui)`, which is an `Option`. This is more readably written as an `if let` statement.
[INFO] [stderr]    --> src/main.rs:280:30
[INFO] [stderr]     |
[INFO] [stderr] 280 |                   for value in Slider::new(axis[2], 0.0, 1.0)
[INFO] [stderr]     |  ______________________________^
[INFO] [stderr] 281 | |                     .label("Axis Z")
[INFO] [stderr] 282 | |                     .label_color(color::RED)
[INFO] [stderr] 283 | |
[INFO] [stderr] 284 | |                     .padded_w_of(ids.canvas, PAD)
[INFO] [stderr] 285 | |                     .h(30.0)
[INFO] [stderr] 286 | |                     .set(ids.axis_z, ui)
[INFO] [stderr]     | |________________________________________^
[INFO] [stderr]     |
[INFO] [stderr]     = help: consider replacing `for value in Slider::new(axis[2], 0.0, 1.0)
[INFO] [stderr]                                 .label("Axis Z")
[INFO] [stderr]                                 .label_color(color::RED)
[INFO] [stderr]             
[INFO] [stderr]                                 .padded_w_of(ids.canvas, PAD)
[INFO] [stderr]                                 .h(30.0)
[INFO] [stderr]                                 .set(ids.axis_z, ui)` with `if let Some(value) = Slider::new(axis[2], 0.0, 1.0)
[INFO] [stderr]                                 .label("Axis Z")
[INFO] [stderr]                                 .label_color(color::RED)
[INFO] [stderr]             
[INFO] [stderr]                                 .padded_w_of(ids.canvas, PAD)
[INFO] [stderr]                                 .h(30.0)
[INFO] [stderr]                                 .set(ids.axis_z, ui)`
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#for_loop_over_option
[INFO] [stderr] 
[INFO] [stderr] warning: using `clone` on a `Copy` type
[INFO] [stderr]    --> src/main.rs:289:29
[INFO] [stderr]     |
[INFO] [stderr] 289 |                     let n = axis.clone().normalize();
[INFO] [stderr]     |                             ^^^^^^^^^^^^ help: try removing the `clone` call: `axis`
[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] error: for loop over `Slider::new(axis_angle.to_degrees(), 0.0, 360.0)
[INFO] [stderr]                     .label("Angle")
[INFO] [stderr]                     .label_color(color::RED)
[INFO] [stderr] 
[INFO] [stderr]                     .padded_w_of(ids.canvas, PAD)
[INFO] [stderr]                     .h(30.0)
[INFO] [stderr]                     .set(ids.axis_angle, ui)`, which is an `Option`. This is more readably written as an `if let` statement.
[INFO] [stderr]    --> src/main.rs:294:30
[INFO] [stderr]     |
[INFO] [stderr] 294 |                   for value in Slider::new(axis_angle.to_degrees(), 0.0, 360.0)
[INFO] [stderr]     |  ______________________________^
[INFO] [stderr] 295 | |                     .label("Angle")
[INFO] [stderr] 296 | |                     .label_color(color::RED)
[INFO] [stderr] 297 | |
[INFO] [stderr] 298 | |                     .padded_w_of(ids.canvas, PAD)
[INFO] [stderr] 299 | |                     .h(30.0)
[INFO] [stderr] 300 | |                     .set(ids.axis_angle, ui)
[INFO] [stderr]     | |____________________________________________^
[INFO] [stderr]     |
[INFO] [stderr]     = help: consider replacing `for value in Slider::new(axis_angle.to_degrees(), 0.0, 360.0)
[INFO] [stderr]                                 .label("Angle")
[INFO] [stderr]                                 .label_color(color::RED)
[INFO] [stderr]             
[INFO] [stderr]                                 .padded_w_of(ids.canvas, PAD)
[INFO] [stderr]                                 .h(30.0)
[INFO] [stderr]                                 .set(ids.axis_angle, ui)` with `if let Some(value) = Slider::new(axis_angle.to_degrees(), 0.0, 360.0)
[INFO] [stderr]                                 .label("Angle")
[INFO] [stderr]                                 .label_color(color::RED)
[INFO] [stderr]             
[INFO] [stderr]                                 .padded_w_of(ids.canvas, PAD)
[INFO] [stderr]                                 .h(30.0)
[INFO] [stderr]                                 .set(ids.axis_angle, ui)`
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#for_loop_over_option
[INFO] [stderr] 
[INFO] [stderr] warning: using `clone` on a `Copy` type
[INFO] [stderr]    --> src/main.rs:303:29
[INFO] [stderr]     |
[INFO] [stderr] 303 |                     let n = axis.clone().normalize();
[INFO] [stderr]     |                             ^^^^^^^^^^^^ help: try removing the `clone` call: `axis`
[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] error: aborting due to 11 previous errors
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `quaternion-demo`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] warning: Constants have by default a `'static` lifetime
[INFO] [stderr]    --> src/main.rs:111:23
[INFO] [stderr]     |
[INFO] [stderr] 111 |     const FONT_PATH: &'static str =
[INFO] [stderr]     |                      -^^^^^^^---- help: consider removing `'static`: `&str`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::const_static_lifetime)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#const_static_lifetime
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `RED`
[INFO] [stderr]    --> src/main.rs:405:5
[INFO] [stderr]     |
[INFO] [stderr] 405 |     const RED: [f32; 4] = [1.0, 0.0, 0.0, 1.0];
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `GREEN`
[INFO] [stderr]    --> src/main.rs:406:5
[INFO] [stderr]     |
[INFO] [stderr] 406 |     const GREEN: [f32; 4] = [0.0, 1.0, 0.0, 1.0];
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `BLUE`
[INFO] [stderr]    --> src/main.rs:407:5
[INFO] [stderr]     |
[INFO] [stderr] 407 |     const BLUE: [f32; 4] = [0.0, 0.0, 1.0, 1.0];
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: approximate value of `f{32, 64}::consts::PI` found. Consider using it directly
[INFO] [stderr]   --> src/main.rs:72:62
[INFO] [stderr]    |
[INFO] [stderr] 72 |             projection: Matrix4::new_perspective(16.0 / 9.0, 3.14 / 4.0, 1.0, 1000.0),
[INFO] [stderr]    |                                                              ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[deny(clippy::approx_constant)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#approx_constant
[INFO] [stderr] 
[INFO] [stderr] warning: casting u32 to f64 may become silently lossy if types change
[INFO] [stderr]   --> src/main.rs:91:42
[INFO] [stderr]    |
[INFO] [stderr] 91 |     let mut ui = conrod::UiBuilder::new([WIDTH as f64, HEIGHT as f64]).build();
[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/main.rs:91:56
[INFO] [stderr]    |
[INFO] [stderr] 91 |     let mut ui = conrod::UiBuilder::new([WIDTH as f64, HEIGHT as f64]).build();
[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: you seem to be trying to use match for destructuring a single pattern. Consider using `if let`
[INFO] [stderr]    --> src/main.rs:150:13
[INFO] [stderr]     |
[INFO] [stderr] 150 | /             match event.clone() {
[INFO] [stderr] 151 | |                 glium::glutin::Event::WindowEvent { event, .. } => {
[INFO] [stderr] 152 | |                     match event {
[INFO] [stderr] 153 | |                         glium::glutin::WindowEvent::Closed |
[INFO] [stderr] ...   |
[INFO] [stderr] 164 | |                 _ => (),
[INFO] [stderr] 165 | |             };
[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] 150 |             if let glium::glutin::Event::WindowEvent { event, .. } = event.clone() {
[INFO] [stderr] 151 |     match event {
[INFO] [stderr] 152 |         glium::glutin::WindowEvent::Closed |
[INFO] [stderr] 153 |         glium::glutin::WindowEvent::KeyboardInput {
[INFO] [stderr] 154 |             input: glium::glutin::KeyboardInput {
[INFO] [stderr] 155 |                 virtual_keycode: Some(glium::glutin::VirtualKeyCode::Escape),
[INFO] [stderr]   ...
[INFO] [stderr] 
[INFO] [stderr] error: for loop over `Slider::new(euler_angles[0].to_degrees(), 0.0, 360.0)
[INFO] [stderr]                     .label("Yaw")
[INFO] [stderr]                     .label_color(color::RED)
[INFO] [stderr]                     .padded_w_of(ids.canvas, PAD)
[INFO] [stderr]                     .h(30.0)
[INFO] [stderr]                     .set(ids.yaw, ui)`, which is an `Option`. This is more readably written as an `if let` statement.
[INFO] [stderr]    --> src/main.rs:215:30
[INFO] [stderr]     |
[INFO] [stderr] 215 |                   for value in Slider::new(euler_angles[0].to_degrees(), 0.0, 360.0)
[INFO] [stderr]     |  ______________________________^
[INFO] [stderr] 216 | |                     .label("Yaw")
[INFO] [stderr] 217 | |                     .label_color(color::RED)
[INFO] [stderr] 218 | |                     .padded_w_of(ids.canvas, PAD)
[INFO] [stderr] 219 | |                     .h(30.0)
[INFO] [stderr] 220 | |                     .set(ids.yaw, ui)
[INFO] [stderr]     | |_____________________________________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[deny(clippy::for_loop_over_option)] on by default
[INFO] [stderr]     = help: consider replacing `for value in Slider::new(euler_angles[0].to_degrees(), 0.0, 360.0)
[INFO] [stderr]                                 .label("Yaw")
[INFO] [stderr]                                 .label_color(color::RED)
[INFO] [stderr]                                 .padded_w_of(ids.canvas, PAD)
[INFO] [stderr]                                 .h(30.0)
[INFO] [stderr]                                 .set(ids.yaw, ui)` with `if let Some(value) = Slider::new(euler_angles[0].to_degrees(), 0.0, 360.0)
[INFO] [stderr]                                 .label("Yaw")
[INFO] [stderr]                                 .label_color(color::RED)
[INFO] [stderr]                                 .padded_w_of(ids.canvas, PAD)
[INFO] [stderr]                                 .h(30.0)
[INFO] [stderr]                                 .set(ids.yaw, ui)`
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#for_loop_over_option
[INFO] [stderr] 
[INFO] [stderr] error: for loop over `Slider::new(euler_angles[1].to_degrees(), 0.0, 360.0)
[INFO] [stderr]                     .label("Pitch")
[INFO] [stderr]                     .label_color(color::RED)
[INFO] [stderr]                     .padded_w_of(ids.canvas, PAD)
[INFO] [stderr]                     .h(30.0)
[INFO] [stderr]                     .set(ids.pitch, ui)`, which is an `Option`. This is more readably written as an `if let` statement.
[INFO] [stderr]    --> src/main.rs:227:30
[INFO] [stderr]     |
[INFO] [stderr] 227 |                   for value in Slider::new(euler_angles[1].to_degrees(), 0.0, 360.0)
[INFO] [stderr]     |  ______________________________^
[INFO] [stderr] 228 | |                     .label("Pitch")
[INFO] [stderr] 229 | |                     .label_color(color::RED)
[INFO] [stderr] 230 | |                     .padded_w_of(ids.canvas, PAD)
[INFO] [stderr] 231 | |                     .h(30.0)
[INFO] [stderr] 232 | |                     .set(ids.pitch, ui)
[INFO] [stderr]     | |_______________________________________^
[INFO] [stderr]     |
[INFO] [stderr]     = help: consider replacing `for value in Slider::new(euler_angles[1].to_degrees(), 0.0, 360.0)
[INFO] [stderr]                                 .label("Pitch")
[INFO] [stderr]                                 .label_color(color::RED)
[INFO] [stderr]                                 .padded_w_of(ids.canvas, PAD)
[INFO] [stderr]                                 .h(30.0)
[INFO] [stderr]                                 .set(ids.pitch, ui)` with `if let Some(value) = Slider::new(euler_angles[1].to_degrees(), 0.0, 360.0)
[INFO] [stderr]                                 .label("Pitch")
[INFO] [stderr]                                 .label_color(color::RED)
[INFO] [stderr]                                 .padded_w_of(ids.canvas, PAD)
[INFO] [stderr]                                 .h(30.0)
[INFO] [stderr]                                 .set(ids.pitch, ui)`
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#for_loop_over_option
[INFO] [stderr] 
[INFO] [stderr] error: for loop over `Slider::new(euler_angles[2].to_degrees(), 0.0, 360.0)
[INFO] [stderr]                     .label("Roll")
[INFO] [stderr]                     .label_color(color::RED)
[INFO] [stderr] 
[INFO] [stderr]                     .padded_w_of(ids.canvas, PAD)
[INFO] [stderr]                     .h(30.0)
[INFO] [stderr]                     .set(ids.roll, ui)`, which is an `Option`. This is more readably written as an `if let` statement.
[INFO] [stderr]    --> src/main.rs:239:30
[INFO] [stderr]     |
[INFO] [stderr] 239 |                   for value in Slider::new(euler_angles[2].to_degrees(), 0.0, 360.0)
[INFO] [stderr]     |  ______________________________^
[INFO] [stderr] 240 | |                     .label("Roll")
[INFO] [stderr] 241 | |                     .label_color(color::RED)
[INFO] [stderr] 242 | |
[INFO] [stderr] 243 | |                     .padded_w_of(ids.canvas, PAD)
[INFO] [stderr] 244 | |                     .h(30.0)
[INFO] [stderr] 245 | |                     .set(ids.roll, ui)
[INFO] [stderr]     | |______________________________________^
[INFO] [stderr]     |
[INFO] [stderr]     = help: consider replacing `for value in Slider::new(euler_angles[2].to_degrees(), 0.0, 360.0)
[INFO] [stderr]                                 .label("Roll")
[INFO] [stderr]                                 .label_color(color::RED)
[INFO] [stderr]             
[INFO] [stderr]                                 .padded_w_of(ids.canvas, PAD)
[INFO] [stderr]                                 .h(30.0)
[INFO] [stderr]                                 .set(ids.roll, ui)` with `if let Some(value) = Slider::new(euler_angles[2].to_degrees(), 0.0, 360.0)
[INFO] [stderr]                                 .label("Roll")
[INFO] [stderr]                                 .label_color(color::RED)
[INFO] [stderr]             
[INFO] [stderr]                                 .padded_w_of(ids.canvas, PAD)
[INFO] [stderr]                                 .h(30.0)
[INFO] [stderr]                                 .set(ids.roll, ui)`
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#for_loop_over_option
[INFO] [stderr] 
[INFO] [stderr] error: for loop over `Slider::new(axis[0], 0.0, 1.0)
[INFO] [stderr]                     .label("Axis X")
[INFO] [stderr]                     .label_color(color::RED)
[INFO] [stderr] 
[INFO] [stderr]                     .padded_w_of(ids.canvas, PAD)
[INFO] [stderr]                     .h(30.0)
[INFO] [stderr]                     .set(ids.axis_x, ui)`, which is an `Option`. This is more readably written as an `if let` statement.
[INFO] [stderr]    --> src/main.rs:252:30
[INFO] [stderr]     |
[INFO] [stderr] 252 |                   for value in Slider::new(axis[0], 0.0, 1.0)
[INFO] [stderr]     |  ______________________________^
[INFO] [stderr] 253 | |                     .label("Axis X")
[INFO] [stderr] 254 | |                     .label_color(color::RED)
[INFO] [stderr] 255 | |
[INFO] [stderr] 256 | |                     .padded_w_of(ids.canvas, PAD)
[INFO] [stderr] 257 | |                     .h(30.0)
[INFO] [stderr] 258 | |                     .set(ids.axis_x, ui)
[INFO] [stderr]     | |________________________________________^
[INFO] [stderr]     |
[INFO] [stderr]     = help: consider replacing `for value in Slider::new(axis[0], 0.0, 1.0)
[INFO] [stderr]                                 .label("Axis X")
[INFO] [stderr]                                 .label_color(color::RED)
[INFO] [stderr]             
[INFO] [stderr]                                 .padded_w_of(ids.canvas, PAD)
[INFO] [stderr]                                 .h(30.0)
[INFO] [stderr]                                 .set(ids.axis_x, ui)` with `if let Some(value) = Slider::new(axis[0], 0.0, 1.0)
[INFO] [stderr]                                 .label("Axis X")
[INFO] [stderr]                                 .label_color(color::RED)
[INFO] [stderr]             
[INFO] [stderr]                                 .padded_w_of(ids.canvas, PAD)
[INFO] [stderr]                                 .h(30.0)
[INFO] [stderr]                                 .set(ids.axis_x, ui)`
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#for_loop_over_option
[INFO] [stderr] 
[INFO] [stderr] warning: using `clone` on a `Copy` type
[INFO] [stderr]    --> src/main.rs:261:29
[INFO] [stderr]     |
[INFO] [stderr] 261 |                     let n = axis.clone().normalize();
[INFO] [stderr]     |                             ^^^^^^^^^^^^ help: try removing the `clone` call: `axis`
[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] error: for loop over `Slider::new(axis[1], 0.0, 1.0)
[INFO] [stderr]                     .label("Axis Y")
[INFO] [stderr]                     .label_color(color::RED)
[INFO] [stderr] 
[INFO] [stderr]                     .padded_w_of(ids.canvas, PAD)
[INFO] [stderr]                     .h(30.0)
[INFO] [stderr]                     .set(ids.axis_y, ui)`, which is an `Option`. This is more readably written as an `if let` statement.
[INFO] [stderr]    --> src/main.rs:266:30
[INFO] [stderr]     |
[INFO] [stderr] 266 |                   for value in Slider::new(axis[1], 0.0, 1.0)
[INFO] [stderr]     |  ______________________________^
[INFO] [stderr] 267 | |                     .label("Axis Y")
[INFO] [stderr] 268 | |                     .label_color(color::RED)
[INFO] [stderr] 269 | |
[INFO] [stderr] 270 | |                     .padded_w_of(ids.canvas, PAD)
[INFO] [stderr] 271 | |                     .h(30.0)
[INFO] [stderr] 272 | |                     .set(ids.axis_y, ui)
[INFO] [stderr]     | |________________________________________^
[INFO] [stderr]     |
[INFO] [stderr]     = help: consider replacing `for value in Slider::new(axis[1], 0.0, 1.0)
[INFO] [stderr]                                 .label("Axis Y")
[INFO] [stderr]                                 .label_color(color::RED)
[INFO] [stderr]             
[INFO] [stderr]                                 .padded_w_of(ids.canvas, PAD)
[INFO] [stderr]                                 .h(30.0)
[INFO] [stderr]                                 .set(ids.axis_y, ui)` with `if let Some(value) = Slider::new(axis[1], 0.0, 1.0)
[INFO] [stderr]                                 .label("Axis Y")
[INFO] [stderr]                                 .label_color(color::RED)
[INFO] [stderr]             
[INFO] [stderr]                                 .padded_w_of(ids.canvas, PAD)
[INFO] [stderr]                                 .h(30.0)
[INFO] [stderr]                                 .set(ids.axis_y, ui)`
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#for_loop_over_option
[INFO] [stderr] 
[INFO] [stderr] warning: using `clone` on a `Copy` type
[INFO] [stderr]    --> src/main.rs:275:29
[INFO] [stderr]     |
[INFO] [stderr] 275 |                     let n = axis.clone().normalize();
[INFO] [stderr]     |                             ^^^^^^^^^^^^ help: try removing the `clone` call: `axis`
[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] error: for loop over `Slider::new(axis[2], 0.0, 1.0)
[INFO] [stderr]                     .label("Axis Z")
[INFO] [stderr]                     .label_color(color::RED)
[INFO] [stderr] 
[INFO] [stderr]                     .padded_w_of(ids.canvas, PAD)
[INFO] [stderr]                     .h(30.0)
[INFO] [stderr]                     .set(ids.axis_z, ui)`, which is an `Option`. This is more readably written as an `if let` statement.
[INFO] [stderr]    --> src/main.rs:280:30
[INFO] [stderr]     |
[INFO] [stderr] 280 |                   for value in Slider::new(axis[2], 0.0, 1.0)
[INFO] [stderr]     |  ______________________________^
[INFO] [stderr] 281 | |                     .label("Axis Z")
[INFO] [stderr] 282 | |                     .label_color(color::RED)
[INFO] [stderr] 283 | |
[INFO] [stderr] 284 | |                     .padded_w_of(ids.canvas, PAD)
[INFO] [stderr] 285 | |                     .h(30.0)
[INFO] [stderr] 286 | |                     .set(ids.axis_z, ui)
[INFO] [stderr]     | |________________________________________^
[INFO] [stderr]     |
[INFO] [stderr]     = help: consider replacing `for value in Slider::new(axis[2], 0.0, 1.0)
[INFO] [stderr]                                 .label("Axis Z")
[INFO] [stderr]                                 .label_color(color::RED)
[INFO] [stderr]             
[INFO] [stderr]                                 .padded_w_of(ids.canvas, PAD)
[INFO] [stderr]                                 .h(30.0)
[INFO] [stderr]                                 .set(ids.axis_z, ui)` with `if let Some(value) = Slider::new(axis[2], 0.0, 1.0)
[INFO] [stderr]                                 .label("Axis Z")
[INFO] [stderr]                                 .label_color(color::RED)
[INFO] [stderr]             
[INFO] [stderr]                                 .padded_w_of(ids.canvas, PAD)
[INFO] [stderr]                                 .h(30.0)
[INFO] [stderr]                                 .set(ids.axis_z, ui)`
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#for_loop_over_option
[INFO] [stderr] 
[INFO] [stderr] warning: using `clone` on a `Copy` type
[INFO] [stderr]    --> src/main.rs:289:29
[INFO] [stderr]     |
[INFO] [stderr] 289 |                     let n = axis.clone().normalize();
[INFO] [stderr]     |                             ^^^^^^^^^^^^ help: try removing the `clone` call: `axis`
[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] error: for loop over `Slider::new(axis_angle.to_degrees(), 0.0, 360.0)
[INFO] [stderr]                     .label("Angle")
[INFO] [stderr]                     .label_color(color::RED)
[INFO] [stderr] 
[INFO] [stderr]                     .padded_w_of(ids.canvas, PAD)
[INFO] [stderr]                     .h(30.0)
[INFO] [stderr]                     .set(ids.axis_angle, ui)`, which is an `Option`. This is more readably written as an `if let` statement.
[INFO] [stderr]    --> src/main.rs:294:30
[INFO] [stderr]     |
[INFO] [stderr] 294 |                   for value in Slider::new(axis_angle.to_degrees(), 0.0, 360.0)
[INFO] [stderr]     |  ______________________________^
[INFO] [stderr] 295 | |                     .label("Angle")
[INFO] [stderr] 296 | |                     .label_color(color::RED)
[INFO] [stderr] 297 | |
[INFO] [stderr] 298 | |                     .padded_w_of(ids.canvas, PAD)
[INFO] [stderr] 299 | |                     .h(30.0)
[INFO] [stderr] 300 | |                     .set(ids.axis_angle, ui)
[INFO] [stderr]     | |____________________________________________^
[INFO] [stderr]     |
[INFO] [stderr]     = help: consider replacing `for value in Slider::new(axis_angle.to_degrees(), 0.0, 360.0)
[INFO] [stderr]                                 .label("Angle")
[INFO] [stderr]                                 .label_color(color::RED)
[INFO] [stderr]             
[INFO] [stderr]                                 .padded_w_of(ids.canvas, PAD)
[INFO] [stderr]                                 .h(30.0)
[INFO] [stderr]                                 .set(ids.axis_angle, ui)` with `if let Some(value) = Slider::new(axis_angle.to_degrees(), 0.0, 360.0)
[INFO] [stderr]                                 .label("Angle")
[INFO] [stderr]                                 .label_color(color::RED)
[INFO] [stderr]             
[INFO] [stderr]                                 .padded_w_of(ids.canvas, PAD)
[INFO] [stderr]                                 .h(30.0)
[INFO] [stderr]                                 .set(ids.axis_angle, ui)`
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#for_loop_over_option
[INFO] [stderr] 
[INFO] [stderr] warning: using `clone` on a `Copy` type
[INFO] [stderr]    --> src/main.rs:303:29
[INFO] [stderr]     |
[INFO] [stderr] 303 |                     let n = axis.clone().normalize();
[INFO] [stderr]     |                             ^^^^^^^^^^^^ help: try removing the `clone` call: `axis`
[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] error: aborting due to 8 previous errors
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `quaternion-demo`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "a6920ae6a9e4d9807d9a024a6a19c36144af4ecd7b2f795e73eca8f0467bcd1f"`
[INFO] running `"docker" "rm" "-f" "a6920ae6a9e4d9807d9a024a6a19c36144af4ecd7b2f795e73eca8f0467bcd1f"`
[INFO] [stdout] a6920ae6a9e4d9807d9a024a6a19c36144af4ecd7b2f795e73eca8f0467bcd1f