[INFO] updating cached repository Niederb/ray_tracer
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/Niederb/ray_tracer
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/Niederb/ray_tracer" "work/ex/clippy-test-run/sources/stable/gh/Niederb/ray_tracer"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/Niederb/ray_tracer'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/Niederb/ray_tracer" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/Niederb/ray_tracer"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/Niederb/ray_tracer'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] a047307d6cf4ab2f0c40af9b6ecde60b5d93295a
[INFO] sha for GitHub repo Niederb/ray_tracer: a047307d6cf4ab2f0c40af9b6ecde60b5d93295a
[INFO] validating manifest of Niederb/ray_tracer on toolchain stable
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of Niederb/ray_tracer on toolchain stable+rustflags=-Dclippy::into_iter_on_array
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing Niederb/ray_tracer
[INFO] finished frobbing Niederb/ray_tracer
[INFO] frobbed toml for Niederb/ray_tracer written to work/ex/clippy-test-run/sources/stable/gh/Niederb/ray_tracer/Cargo.toml
[INFO] started frobbing Niederb/ray_tracer
[INFO] finished frobbing Niederb/ray_tracer
[INFO] frobbed toml for Niederb/ray_tracer written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/Niederb/ray_tracer/Cargo.toml
[INFO] crate Niederb/ray_tracer has a lockfile. skipping
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] linting Niederb/ray_tracer 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/Niederb/ray_tracer:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+stable" "clippy" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] b085595de4098f248a6a8a48f38224bc8bb1ac2058ac4cb8709ecb96de226e57
[INFO] running `"docker" "start" "-a" "b085595de4098f248a6a8a48f38224bc8bb1ac2058ac4cb8709ecb96de226e57"`
[INFO] [stderr]    Compiling syn v0.15.16
[INFO] [stderr]    Compiling num-derive v0.2.3
[INFO] [stderr]     Checking tiff v0.2.1
[INFO] [stderr]     Checking image v0.20.0
[INFO] [stderr]     Checking ray_tracer v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: module has the same name as its containing module
[INFO] [stderr]  --> src/material/mod.rs:3:1
[INFO] [stderr]   |
[INFO] [stderr] 3 | mod material;
[INFO] [stderr]   | ^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(clippy::module_inception)] on by default
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#module_inception
[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/geom/hitablelist.rs:31:13
[INFO] [stderr]    |
[INFO] [stderr] 31 | /             match current_record {
[INFO] [stderr] 32 | |                 // The division was valid
[INFO] [stderr] 33 | |                 Some(hit_record) => {
[INFO] [stderr] 34 | |                     if hit_record.t() < min_distance || closest_record.is_none() {
[INFO] [stderr] ...  |
[INFO] [stderr] 39 | |                 None => (),
[INFO] [stderr] 40 | |             }
[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] 31 |             if let Some(hit_record) = current_record {
[INFO] [stderr] 32 |     if hit_record.t() < min_distance || closest_record.is_none() {
[INFO] [stderr] 33 |         min_distance = hit_record.t();
[INFO] [stderr] 34 |         closest_record = Some(hit_record);
[INFO] [stderr] 35 |     }
[INFO] [stderr] 36 | }
[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:18:5
[INFO] [stderr]    |
[INFO] [stderr] 18 | /     match hit_result {
[INFO] [stderr] 19 | |         // The division was valid
[INFO] [stderr] 20 | |         Some(hit_record) => {
[INFO] [stderr] 21 | |             if depth < 50 {
[INFO] [stderr] ...  |
[INFO] [stderr] 29 | |         None => (),
[INFO] [stderr] 30 | |     }
[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] 18 |     if let Some(hit_record) = hit_result {
[INFO] [stderr] 19 |     if depth < 50 {
[INFO] [stderr] 20 |         let (attenuation, scattered) = hit_record.material().scatter(r, hit_record);
[INFO] [stderr] 21 |         return attenuation * color(&scattered, h, depth + 1);
[INFO] [stderr] 22 |     } else {
[INFO] [stderr] 23 |         return Vec3::origin();
[INFO] [stderr]  ...
[INFO] [stderr] 
[INFO] [stderr] warning: casting i32 to f64 may become silently lossy if types change
[INFO] [stderr]   --> src/main.rs:49:9
[INFO] [stderr]    |
[INFO] [stderr] 49 |         width as f64 / height as f64,
[INFO] [stderr]    |         ^^^^^^^^^^^^ help: try: `f64::from(width)`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::cast_lossless)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting i32 to f64 may become silently lossy if types change
[INFO] [stderr]   --> src/main.rs:49:24
[INFO] [stderr]    |
[INFO] [stderr] 49 |         width as f64 / height as f64,
[INFO] [stderr]    |                        ^^^^^^^^^^^^^ help: try: `f64::from(height)`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting i32 to f64 may become silently lossy if types change
[INFO] [stderr]   --> src/main.rs:74:17
[INFO] [stderr]    |
[INFO] [stderr] 74 |                 a as f64 + random::<f64>() * 0.9,
[INFO] [stderr]    |                 ^^^^^^^^ help: try: `f64::from(a)`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting i32 to f64 may become silently lossy if types change
[INFO] [stderr]   --> src/main.rs:76:17
[INFO] [stderr]    |
[INFO] [stderr] 76 |                 b as f64 + random::<f64>() * 0.9,
[INFO] [stderr]    |                 ^^^^^^^^ help: try: `f64::from(b)`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting i32 to f64 may become silently lossy if types change
[INFO] [stderr]    --> src/main.rs:129:26
[INFO] [stderr]     |
[INFO] [stderr] 129 |                 let u = (x as f64 + u_delta) / width as f64;
[INFO] [stderr]     |                          ^^^^^^^^ help: try: `f64::from(x)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting i32 to f64 may become silently lossy if types change
[INFO] [stderr]    --> src/main.rs:129:48
[INFO] [stderr]     |
[INFO] [stderr] 129 |                 let u = (x as f64 + u_delta) / width as f64;
[INFO] [stderr]     |                                                ^^^^^^^^^^^^ help: try: `f64::from(width)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting i32 to f64 may become silently lossy if types change
[INFO] [stderr]    --> src/main.rs:130:26
[INFO] [stderr]     |
[INFO] [stderr] 130 |                 let v = (y as f64 + v_delta) / height as f64;
[INFO] [stderr]     |                          ^^^^^^^^ help: try: `f64::from(y)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting i32 to f64 may become silently lossy if types change
[INFO] [stderr]    --> src/main.rs:130:48
[INFO] [stderr]     |
[INFO] [stderr] 130 |                 let v = (y as f64 + v_delta) / height as f64;
[INFO] [stderr]     |                                                ^^^^^^^^^^^^^ help: try: `f64::from(height)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting i32 to f64 may become silently lossy if types change
[INFO] [stderr]    --> src/main.rs:135:29
[INFO] [stderr]     |
[INFO] [stderr] 135 |             total = total / n_samples as f64;
[INFO] [stderr]     |                             ^^^^^^^^^^^^^^^^ help: try: `f64::from(n_samples)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting i32 to f64 may become silently lossy if types change
[INFO] [stderr]    --> src/main.rs:146:54
[INFO] [stderr]     |
[INFO] [stderr] 146 |             total_time.elapsed().as_secs() as f64 / (height as f64 - y as f64) * y as f64
[INFO] [stderr]     |                                                      ^^^^^^^^^^^^^ help: try: `f64::from(height)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting i32 to f64 may become silently lossy if types change
[INFO] [stderr]    --> src/main.rs:146:70
[INFO] [stderr]     |
[INFO] [stderr] 146 |             total_time.elapsed().as_secs() as f64 / (height as f64 - y as f64) * y as f64
[INFO] [stderr]     |                                                                      ^^^^^^^^ help: try: `f64::from(y)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting i32 to f64 may become silently lossy if types change
[INFO] [stderr]    --> src/main.rs:146:82
[INFO] [stderr]     |
[INFO] [stderr] 146 |             total_time.elapsed().as_secs() as f64 / (height as f64 - y as f64) * y as f64
[INFO] [stderr]     |                                                                                  ^^^^^^^^ help: try: `f64::from(y)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: module has the same name as its containing module
[INFO] [stderr]  --> src/material/mod.rs:3:1
[INFO] [stderr]   |
[INFO] [stderr] 3 | mod material;
[INFO] [stderr]   | ^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(clippy::module_inception)] on by default
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#module_inception
[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/geom/hitablelist.rs:31:13
[INFO] [stderr]    |
[INFO] [stderr] 31 | /             match current_record {
[INFO] [stderr] 32 | |                 // The division was valid
[INFO] [stderr] 33 | |                 Some(hit_record) => {
[INFO] [stderr] 34 | |                     if hit_record.t() < min_distance || closest_record.is_none() {
[INFO] [stderr] ...  |
[INFO] [stderr] 39 | |                 None => (),
[INFO] [stderr] 40 | |             }
[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] 31 |             if let Some(hit_record) = current_record {
[INFO] [stderr] 32 |     if hit_record.t() < min_distance || closest_record.is_none() {
[INFO] [stderr] 33 |         min_distance = hit_record.t();
[INFO] [stderr] 34 |         closest_record = Some(hit_record);
[INFO] [stderr] 35 |     }
[INFO] [stderr] 36 | }
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] error: strict comparison of f32 or f64
[INFO] [stderr]    --> src/geom/vec3.rs:129:9
[INFO] [stderr]     |
[INFO] [stderr] 129 |         assert_eq!(14.0, my_vec.squared_length());
[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/geom/vec3.rs:129:9
[INFO] [stderr]     |
[INFO] [stderr] 129 |         assert_eq!(14.0, my_vec.squared_length());
[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/geom/vec3.rs:135:9
[INFO] [stderr]     |
[INFO] [stderr] 135 |         assert_eq!(5.0, my_vec.length());
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr] note: std::f32::EPSILON and std::f64::EPSILON are available.
[INFO] [stderr]    --> src/geom/vec3.rs:135:9
[INFO] [stderr]     |
[INFO] [stderr] 135 |         assert_eq!(5.0, my_vec.length());
[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/geom/vec3.rs:152:9
[INFO] [stderr]     |
[INFO] [stderr] 152 |         assert_eq!(-1.0, Vec3::dot(&my_vec, &my_vec2));
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr] note: std::f32::EPSILON and std::f64::EPSILON are available.
[INFO] [stderr]    --> src/geom/vec3.rs:152:9
[INFO] [stderr]     |
[INFO] [stderr] 152 |         assert_eq!(-1.0, Vec3::dot(&my_vec, &my_vec2));
[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] warning: you seem to be trying to use match for destructuring a single pattern. Consider using `if let`
[INFO] [stderr]   --> src/main.rs:18:5
[INFO] [stderr]    |
[INFO] [stderr] 18 | /     match hit_result {
[INFO] [stderr] 19 | |         // The division was valid
[INFO] [stderr] 20 | |         Some(hit_record) => {
[INFO] [stderr] 21 | |             if depth < 50 {
[INFO] [stderr] ...  |
[INFO] [stderr] 29 | |         None => (),
[INFO] [stderr] 30 | |     }
[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] 18 |     if let Some(hit_record) = hit_result {
[INFO] [stderr] 19 |     if depth < 50 {
[INFO] [stderr] 20 |         let (attenuation, scattered) = hit_record.material().scatter(r, hit_record);
[INFO] [stderr] 21 |         return attenuation * color(&scattered, h, depth + 1);
[INFO] [stderr] 22 |     } else {
[INFO] [stderr] 23 |         return Vec3::origin();
[INFO] [stderr]  ...
[INFO] [stderr] 
[INFO] [stderr] warning: casting i32 to f64 may become silently lossy if types change
[INFO] [stderr]   --> src/main.rs:49:9
[INFO] [stderr]    |
[INFO] [stderr] 49 |         width as f64 / height as f64,
[INFO] [stderr]    |         ^^^^^^^^^^^^ help: try: `f64::from(width)`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::cast_lossless)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting i32 to f64 may become silently lossy if types change
[INFO] [stderr]   --> src/main.rs:49:24
[INFO] [stderr]    |
[INFO] [stderr] 49 |         width as f64 / height as f64,
[INFO] [stderr]    |                        ^^^^^^^^^^^^^ help: try: `f64::from(height)`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting i32 to f64 may become silently lossy if types change
[INFO] [stderr]   --> src/main.rs:74:17
[INFO] [stderr]    |
[INFO] [stderr] 74 |                 a as f64 + random::<f64>() * 0.9,
[INFO] [stderr]    |                 ^^^^^^^^ help: try: `f64::from(a)`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting i32 to f64 may become silently lossy if types change
[INFO] [stderr]   --> src/main.rs:76:17
[INFO] [stderr]    |
[INFO] [stderr] 76 |                 b as f64 + random::<f64>() * 0.9,
[INFO] [stderr]    |                 ^^^^^^^^ help: try: `f64::from(b)`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting i32 to f64 may become silently lossy if types change
[INFO] [stderr]    --> src/main.rs:129:26
[INFO] [stderr]     |
[INFO] [stderr] 129 |                 let u = (x as f64 + u_delta) / width as f64;
[INFO] [stderr]     |                          ^^^^^^^^ help: try: `f64::from(x)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting i32 to f64 may become silently lossy if types change
[INFO] [stderr]    --> src/main.rs:129:48
[INFO] [stderr]     |
[INFO] [stderr] 129 |                 let u = (x as f64 + u_delta) / width as f64;
[INFO] [stderr]     |                                                ^^^^^^^^^^^^ help: try: `f64::from(width)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting i32 to f64 may become silently lossy if types change
[INFO] [stderr]    --> src/main.rs:130:26
[INFO] [stderr]     |
[INFO] [stderr] 130 |                 let v = (y as f64 + v_delta) / height as f64;
[INFO] [stderr]     |                          ^^^^^^^^ help: try: `f64::from(y)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting i32 to f64 may become silently lossy if types change
[INFO] [stderr]    --> src/main.rs:130:48
[INFO] [stderr]     |
[INFO] [stderr] 130 |                 let v = (y as f64 + v_delta) / height as f64;
[INFO] [stderr]     |                                                ^^^^^^^^^^^^^ help: try: `f64::from(height)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting i32 to f64 may become silently lossy if types change
[INFO] [stderr]    --> src/main.rs:135:29
[INFO] [stderr]     |
[INFO] [stderr] 135 |             total = total / n_samples as f64;
[INFO] [stderr]     |                             ^^^^^^^^^^^^^^^^ help: try: `f64::from(n_samples)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting i32 to f64 may become silently lossy if types change
[INFO] [stderr]    --> src/main.rs:146:54
[INFO] [stderr]     |
[INFO] [stderr] 146 |             total_time.elapsed().as_secs() as f64 / (height as f64 - y as f64) * y as f64
[INFO] [stderr]     |                                                      ^^^^^^^^^^^^^ help: try: `f64::from(height)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting i32 to f64 may become silently lossy if types change
[INFO] [stderr]    --> src/main.rs:146:70
[INFO] [stderr]     |
[INFO] [stderr] 146 |             total_time.elapsed().as_secs() as f64 / (height as f64 - y as f64) * y as f64
[INFO] [stderr]     |                                                                      ^^^^^^^^ help: try: `f64::from(y)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting i32 to f64 may become silently lossy if types change
[INFO] [stderr]    --> src/main.rs:146:82
[INFO] [stderr]     |
[INFO] [stderr] 146 |             total_time.elapsed().as_secs() as f64 / (height as f64 - y as f64) * y as f64
[INFO] [stderr]     |                                                                                  ^^^^^^^^ help: try: `f64::from(y)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 3 previous errors
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `ray_tracer`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "b085595de4098f248a6a8a48f38224bc8bb1ac2058ac4cb8709ecb96de226e57"`
[INFO] running `"docker" "rm" "-f" "b085595de4098f248a6a8a48f38224bc8bb1ac2058ac4cb8709ecb96de226e57"`
[INFO] [stdout] b085595de4098f248a6a8a48f38224bc8bb1ac2058ac4cb8709ecb96de226e57