[INFO] crate ray-tracer 0.1.0 is already in cache
[INFO] extracting crate ray-tracer 0.1.0 into work/ex/pr-60914/sources/master#39401465da4ce27aeeb2c2a26133ac35c63aa515/reg/ray-tracer/0.1.0
[INFO] extracting crate ray-tracer 0.1.0 into work/ex/pr-60914/sources/try#f45cc3094ee337acd688771b9234318046b0572d/reg/ray-tracer/0.1.0
[INFO] validating manifest of ray-tracer-0.1.0 on toolchain master#39401465da4ce27aeeb2c2a26133ac35c63aa515
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+39401465da4ce27aeeb2c2a26133ac35c63aa515-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of ray-tracer-0.1.0 on toolchain try#f45cc3094ee337acd688771b9234318046b0572d
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+f45cc3094ee337acd688771b9234318046b0572d-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing ray-tracer-0.1.0
[INFO] finished frobbing ray-tracer-0.1.0
[INFO] frobbed toml for ray-tracer-0.1.0 written to work/ex/pr-60914/sources/master#39401465da4ce27aeeb2c2a26133ac35c63aa515/reg/ray-tracer/0.1.0/Cargo.toml
[INFO] started frobbing ray-tracer-0.1.0
[INFO] finished frobbing ray-tracer-0.1.0
[INFO] frobbed toml for ray-tracer-0.1.0 written to work/ex/pr-60914/sources/try#f45cc3094ee337acd688771b9234318046b0572d/reg/ray-tracer/0.1.0/Cargo.toml
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+39401465da4ce27aeeb2c2a26133ac35c63aa515-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+f45cc3094ee337acd688771b9234318046b0572d-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+39401465da4ce27aeeb2c2a26133ac35c63aa515-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache lock
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+f45cc3094ee337acd688771b9234318046b0572d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking ray-tracer-0.1.0 against master#39401465da4ce27aeeb2c2a26133ac35c63aa515 for pr-60914
[INFO] running `"docker" "create" "-v" "/mnt/crater-raid/crater/work/local/target-dirs/pr-60914/worker-4/master#39401465da4ce27aeeb2c2a26133ac35c63aa515:/opt/crater/target:rw,Z" "-v" "/mnt/crater-raid/crater/work/ex/pr-60914/sources/master#39401465da4ce27aeeb2c2a26133ac35c63aa515/reg/ray-tracer/0.1.0:/opt/crater/workdir:ro,Z" "-v" "/mnt/crater-raid/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/crater-raid/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" "+39401465da4ce27aeeb2c2a26133ac35c63aa515-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] d8eab593bf144510e628a0e0de8913740d6d2d8328e527245b30a1c8a2b0eb5c
[INFO] running `"docker" "start" "-a" "d8eab593bf144510e628a0e0de8913740d6d2d8328e527245b30a1c8a2b0eb5c"`
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking rand v0.6.5
[INFO] [stderr]     Checking ray-tracer v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `crate::ray::Ray`
[INFO] [stderr]  --> src/hit/mod.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use crate::ray::Ray;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::actor::Actor`
[INFO] [stderr]  --> src/hit/mod.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use crate::actor::Actor;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::vector::Vec3`
[INFO] [stderr]  --> src/hitable/mod.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use crate::vector::Vec3;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::vector::Vec3`
[INFO] [stderr]  --> src/hitable/primitive/cube.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use crate::vector::Vec3;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::utils::axis_to_index`
[INFO] [stderr]   --> src/hitable/primitive/cube.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 | use crate::utils::axis_to_index;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `if` condition
[INFO] [stderr]   --> src/scene/mod.rs:63:28
[INFO] [stderr]    |
[INFO] [stderr] 63 |                         if (reflection < max_reflection) {
[INFO] [stderr]    |                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_parens)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::u32`
[INFO] [stderr]  --> src/renderer/mod.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::u32;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `rand::prelude::*`
[INFO] [stderr]  --> src/material/lambertian.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use rand::prelude::*;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `rand::prelude::*`
[INFO] [stderr]  --> src/material/metal.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use rand::prelude::*;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `rand::prelude::*`
[INFO] [stderr]  --> src/material/dielectric.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use rand::prelude::*;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::vector::Vec3`
[INFO] [stderr]  --> src/tree/linear.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use crate::vector::Vec3;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::boundingbox::BoundingBox`
[INFO] [stderr]  --> src/tree/linear.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use crate::boundingbox::BoundingBox;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::ray::Ray`
[INFO] [stderr]  --> src/hit/mod.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use crate::ray::Ray;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::actor::Actor`
[INFO] [stderr]  --> src/hit/mod.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use crate::actor::Actor;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::vector::Vec3`
[INFO] [stderr]  --> src/hitable/mod.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use crate::vector::Vec3;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::vector::Vec3`
[INFO] [stderr]  --> src/hitable/primitive/cube.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use crate::vector::Vec3;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::utils::axis_to_index`
[INFO] [stderr]   --> src/hitable/primitive/cube.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 | use crate::utils::axis_to_index;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `if` condition
[INFO] [stderr]   --> src/scene/mod.rs:63:28
[INFO] [stderr]    |
[INFO] [stderr] 63 |                         if (reflection < max_reflection) {
[INFO] [stderr]    |                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_parens)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::u32`
[INFO] [stderr]  --> src/renderer/mod.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::u32;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `rand::prelude::*`
[INFO] [stderr]  --> src/material/lambertian.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use rand::prelude::*;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `rand::prelude::*`
[INFO] [stderr]  --> src/material/metal.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use rand::prelude::*;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `rand::prelude::*`
[INFO] [stderr]  --> src/material/dielectric.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use rand::prelude::*;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::vector::Vec3`
[INFO] [stderr]  --> src/tree/linear.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use crate::vector::Vec3;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::boundingbox::BoundingBox`
[INFO] [stderr]  --> src/tree/linear.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use crate::boundingbox::BoundingBox;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::hitable::Hitable`
[INFO] [stderr]  --> src/renderer/mod.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | use crate::hitable::Hitable;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `two`
[INFO] [stderr]    --> src/renderer/mod.rs:100:66
[INFO] [stderr]     |
[INFO] [stderr] 100 |     fn get_ray<T>(&self, i: usize, j: usize, camera: &Camera<T>, two: T) -> Ray<T>
[INFO] [stderr]     |                                                                  ^^^ help: consider prefixing with an underscore: `_two`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `incident`
[INFO] [stderr]   --> src/material/lambertian.rs:32:23
[INFO] [stderr]    |
[INFO] [stderr] 32 |     fn scatter(&self, incident: &Ray<T>, hit: &Hit<T>) -> Scatter<T> {
[INFO] [stderr]    |                       ^^^^^^^^ help: consider prefixing with an underscore: `_incident`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `two`
[INFO] [stderr]   --> src/texture/checker.rs:35:13
[INFO] [stderr]    |
[INFO] [stderr] 35 |         let two = T::from(2.0).unwrap();
[INFO] [stderr]    |             ^^^ help: consider prefixing with an underscore: `_two`
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `width`
[INFO] [stderr]   --> src/hitable/primitive/rectangle.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 |     width: T,
[INFO] [stderr]    |     ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `height`
[INFO] [stderr]   --> src/hitable/primitive/rectangle.rs:15:5
[INFO] [stderr]    |
[INFO] [stderr] 15 |     height: T,
[INFO] [stderr]    |     ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `length`
[INFO] [stderr]   --> src/hitable/primitive/cube.rs:16:5
[INFO] [stderr]    |
[INFO] [stderr] 16 |     length: T,
[INFO] [stderr]    |     ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `width`
[INFO] [stderr]   --> src/hitable/primitive/cube.rs:17:5
[INFO] [stderr]    |
[INFO] [stderr] 17 |     width: T,
[INFO] [stderr]    |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `height`
[INFO] [stderr]   --> src/hitable/primitive/cube.rs:18:5
[INFO] [stderr]    |
[INFO] [stderr] 18 |     height: T,
[INFO] [stderr]    |     ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::hitable::Hitable`
[INFO] [stderr]  --> src/renderer/mod.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | use crate::hitable::Hitable;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `hit`
[INFO] [stderr]    --> src/hitable/primitive/sphere.rs:146:18
[INFO] [stderr]     |
[INFO] [stderr] 146 |             Some(hit) => {
[INFO] [stderr]     |                  ^^^ help: consider prefixing with an underscore: `_hit`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `hit`
[INFO] [stderr]    --> src/hitable/primitive/sphere.rs:157:18
[INFO] [stderr]     |
[INFO] [stderr] 157 |             Some(hit) => {
[INFO] [stderr]     |                  ^^^ help: consider prefixing with an underscore: `_hit`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `hit`
[INFO] [stderr]    --> src/hitable/primitive/rectangle.rs:206:21
[INFO] [stderr]     |
[INFO] [stderr] 206 |         if let Some(hit) = rectangle.hit(&ray, 0.0, 100.0) {
[INFO] [stderr]     |                     ^^^ help: consider prefixing with an underscore: `_hit`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `cube`
[INFO] [stderr]   --> src/hitable/primitive/cube.rs:90:13
[INFO] [stderr]    |
[INFO] [stderr] 90 |         let cube = Cube::<f64>::new(length, width, height);
[INFO] [stderr]    |             ^^^^ help: consider prefixing with an underscore: `_cube`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `ray`
[INFO] [stderr]    --> src/camera/perspective.rs:219:13
[INFO] [stderr]     |
[INFO] [stderr] 219 |         let ray = camera.get_ray(-1.0, 0.0);
[INFO] [stderr]     |             ^^^ help: consider prefixing with an underscore: `_ray`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `two`
[INFO] [stderr]    --> src/renderer/mod.rs:100:66
[INFO] [stderr]     |
[INFO] [stderr] 100 |     fn get_ray<T>(&self, i: usize, j: usize, camera: &Camera<T>, two: T) -> Ray<T>
[INFO] [stderr]     |                                                                  ^^^ help: consider prefixing with an underscore: `_two`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `incident`
[INFO] [stderr]   --> src/material/lambertian.rs:32:23
[INFO] [stderr]    |
[INFO] [stderr] 32 |     fn scatter(&self, incident: &Ray<T>, hit: &Hit<T>) -> Scatter<T> {
[INFO] [stderr]    |                       ^^^^^^^^ help: consider prefixing with an underscore: `_incident`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `two`
[INFO] [stderr]   --> src/texture/checker.rs:35:13
[INFO] [stderr]    |
[INFO] [stderr] 35 |         let two = T::from(2.0).unwrap();
[INFO] [stderr]    |             ^^^ help: consider prefixing with an underscore: `_two`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/boundingbox/mod.rs:240:17
[INFO] [stderr]     |
[INFO] [stderr] 240 |             let mut direction = Vec3::new();
[INFO] [stderr]     |                 ----^^^^^^^^^
[INFO] [stderr]     |                 |
[INFO] [stderr]     |                 help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/boundingbox/mod.rs:247:17
[INFO] [stderr]     |
[INFO] [stderr] 247 |             let mut direction = Vec3::new();
[INFO] [stderr]     |                 ----^^^^^^^^^
[INFO] [stderr]     |                 |
[INFO] [stderr]     |                 help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `width`
[INFO] [stderr]   --> src/hitable/primitive/rectangle.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 |     width: T,
[INFO] [stderr]    |     ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `height`
[INFO] [stderr]   --> src/hitable/primitive/rectangle.rs:15:5
[INFO] [stderr]    |
[INFO] [stderr] 15 |     height: T,
[INFO] [stderr]    |     ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `length`
[INFO] [stderr]   --> src/hitable/primitive/cube.rs:16:5
[INFO] [stderr]    |
[INFO] [stderr] 16 |     length: T,
[INFO] [stderr]    |     ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `width`
[INFO] [stderr]   --> src/hitable/primitive/cube.rs:17:5
[INFO] [stderr]    |
[INFO] [stderr] 17 |     width: T,
[INFO] [stderr]    |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `height`
[INFO] [stderr]   --> src/hitable/primitive/cube.rs:18:5
[INFO] [stderr]    |
[INFO] [stderr] 18 |     height: T,
[INFO] [stderr]    |     ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `width_axis`
[INFO] [stderr]    --> tests/main.rs:102:9
[INFO] [stderr]     |
[INFO] [stderr] 102 |     let width_axis = Axis::X;
[INFO] [stderr]     |         ^^^^^^^^^^ help: consider prefixing with an underscore: `_width_axis`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `height_axis`
[INFO] [stderr]    --> tests/main.rs:103:9
[INFO] [stderr]     |
[INFO] [stderr] 103 |     let height_axis = Axis::Y;
[INFO] [stderr]     |         ^^^^^^^^^^^ help: consider prefixing with an underscore: `_height_axis`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `actor`
[INFO] [stderr]    --> tests/main.rs:142:9
[INFO] [stderr]     |
[INFO] [stderr] 142 |     let actor = Actor::<f64> { hitable: rectangle, material};
[INFO] [stderr]     |         ^^^^^ help: consider prefixing with an underscore: `_actor`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `hitable`
[INFO] [stderr]    --> tests/main.rs:203:9
[INFO] [stderr]     |
[INFO] [stderr] 203 |     let hitable = Box::new(Translation::new(hitable, Vec3::from_array([0.0, width / 2.0, 0.0])));
[INFO] [stderr]     |         ^^^^^^^ help: consider prefixing with an underscore: `_hitable`
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `MULT`
[INFO] [stderr]   --> tests/main.rs:29:1
[INFO] [stderr]    |
[INFO] [stderr] 29 | const MULT : usize = 40;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `SAMPLING`
[INFO] [stderr]   --> tests/main.rs:30:1
[INFO] [stderr]    |
[INFO] [stderr] 30 | const SAMPLING : usize = 4;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `REFLECTIONS`
[INFO] [stderr]   --> tests/main.rs:31:1
[INFO] [stderr]    |
[INFO] [stderr] 31 | const REFLECTIONS : usize = 8;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.34s
[INFO] running `"docker" "inspect" "d8eab593bf144510e628a0e0de8913740d6d2d8328e527245b30a1c8a2b0eb5c"`
[INFO] running `"docker" "rm" "-f" "d8eab593bf144510e628a0e0de8913740d6d2d8328e527245b30a1c8a2b0eb5c"`
[INFO] [stdout] d8eab593bf144510e628a0e0de8913740d6d2d8328e527245b30a1c8a2b0eb5c