[INFO] updating cached repository jcmorrow/ray_tracer
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/jcmorrow/ray_tracer
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/jcmorrow/ray_tracer" "work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/jcmorrow/ray_tracer"`
[INFO] [stderr] Cloning into 'work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/jcmorrow/ray_tracer'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/jcmorrow/ray_tracer" "work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/jcmorrow/ray_tracer"`
[INFO] [stderr] Cloning into 'work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/jcmorrow/ray_tracer'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 2bc618421ebbedee854b0572f57ea7256a215c68
[INFO] sha for GitHub repo jcmorrow/ray_tracer: 2bc618421ebbedee854b0572f57ea7256a215c68
[INFO] validating manifest of jcmorrow/ray_tracer on toolchain master#60960a260f7b5c695fd0717311d72ce62dd4eb43
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of jcmorrow/ray_tracer on toolchain try#266783e4e09e4e9d5307c1c8e695659c58bbcac7
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing jcmorrow/ray_tracer
[INFO] finished frobbing jcmorrow/ray_tracer
[INFO] frobbed toml for jcmorrow/ray_tracer written to work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/jcmorrow/ray_tracer/Cargo.toml
[INFO] started frobbing jcmorrow/ray_tracer
[INFO] finished frobbing jcmorrow/ray_tracer
[INFO] frobbed toml for jcmorrow/ray_tracer written to work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/jcmorrow/ray_tracer/Cargo.toml
[INFO] crate jcmorrow/ray_tracer already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking jcmorrow/ray_tracer against try#266783e4e09e4e9d5307c1c8e695659c58bbcac7 for pr-63376
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63376/worker-1/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/jcmorrow/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" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 4b32f0b40082f48b6874a062403ff8bb5ee36e050f463f4f7d0fa368392345ce
[INFO] running `"docker" "start" "-a" "4b32f0b40082f48b6874a062403ff8bb5ee36e050f463f4f7d0fa368392345ce"`
[INFO] [stderr]     Checking chrono v0.4.6
[INFO] [stderr]     Checking jpeg-decoder v0.1.15
[INFO] [stderr]     Checking image v0.18.0
[INFO] [stderr]     Checking noise v0.5.1
[INFO] [stderr]     Checking ray_tracer v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `matrix::Matrix4`
[INFO] [stderr]    --> src/intersectable.rs:329:9
[INFO] [stderr]     |
[INFO] [stderr] 329 |     use matrix::Matrix4;
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::f64::consts::PI`
[INFO] [stderr]    --> src/intersectable.rs:331:9
[INFO] [stderr]     |
[INFO] [stderr] 331 |     use std::f64::consts::PI;
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `white`
[INFO] [stderr]   --> src/main.rs:83:9
[INFO] [stderr]    |
[INFO] [stderr] 83 |     let white = Patternable::solid(Color::white());
[INFO] [stderr]    |         ^^^^^ help: consider prefixing with an underscore: `_white`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/matrix.rs:138:21
[INFO] [stderr]     |
[INFO] [stderr] 138 |                 let mut cofactor = self.cofactor(col, row);
[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: struct is never constructed: `Bounds`
[INFO] [stderr]  --> src/bounds.rs:8:1
[INFO] [stderr]   |
[INFO] [stderr] 8 | pub struct Bounds {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/bounds.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 |     pub fn new(xmin: f64, xmax: f64, ymin: f64, ymax: f64, zmin: f64, zmax: f64) -> Bounds {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `check_axis`
[INFO] [stderr]   --> src/bounds.rs:21:5
[INFO] [stderr]    |
[INFO] [stderr] 21 |     fn check_axis(&self, origin: f64, direction: f64, min: f64, max: f64) -> (f64, f64) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `hits`
[INFO] [stderr]   --> src/bounds.rs:40:5
[INFO] [stderr]    |
[INFO] [stderr] 40 |     pub fn hits(&self, ray: &Ray) -> bool {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `field_of_view`
[INFO] [stderr]   --> src/camera.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 |     field_of_view: f64,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `write_pixel`
[INFO] [stderr]   --> src/canvas.rs:27:5
[INFO] [stderr]    |
[INFO] [stderr] 27 |     pub fn write_pixel(&mut self, column: usize, row: usize, color: &Color) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `pixel_at`
[INFO] [stderr]   --> src/canvas.rs:34:5
[INFO] [stderr]    |
[INFO] [stderr] 34 |     pub fn pixel_at(&self, column: usize, row: usize) -> Color {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `write_all_pixels`
[INFO] [stderr]   --> src/canvas.rs:39:5
[INFO] [stderr]    |
[INFO] [stderr] 39 |     fn write_all_pixels(&mut self, color: &Color) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Cube`
[INFO] [stderr]   --> src/intersectable.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 |     Cube,
[INFO] [stderr]    |     ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Group`
[INFO] [stderr]   --> src/intersectable.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 |     Group,
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Triangle`
[INFO] [stderr]   --> src/intersectable.rs:16:5
[INFO] [stderr]    |
[INFO] [stderr] 16 |     Triangle,
[INFO] [stderr]    |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `cube`
[INFO] [stderr]   --> src/intersectable.rs:58:5
[INFO] [stderr]    |
[INFO] [stderr] 58 |     pub fn cube() -> Intersectable {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `triangle`
[INFO] [stderr]   --> src/intersectable.rs:71:5
[INFO] [stderr]    |
[INFO] [stderr] 71 |     pub fn triangle(p1: Point, p2: Point, p3: Point) -> Intersectable {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `group`
[INFO] [stderr]   --> src/intersectable.rs:86:5
[INFO] [stderr]    |
[INFO] [stderr] 86 |     pub fn group() -> Intersectable {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `add`
[INFO] [stderr]    --> src/intersectable.rs:108:5
[INFO] [stderr]     |
[INFO] [stderr] 108 |     pub fn add(&mut self, shape: Arc<Shape>) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `bounds`
[INFO] [stderr]    --> src/intersectable.rs:124:5
[INFO] [stderr]     |
[INFO] [stderr] 124 |     pub fn bounds(&self, shape: &Shape) -> Bounds {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `bounds_sphere`
[INFO] [stderr]    --> src/intersectable.rs:137:5
[INFO] [stderr]     |
[INFO] [stderr] 137 |     fn bounds_sphere(&self, _shape: &Shape) -> Bounds {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `bounds_plane`
[INFO] [stderr]    --> src/intersectable.rs:168:5
[INFO] [stderr]     |
[INFO] [stderr] 168 |     fn bounds_plane(&self, _shape: &Shape) -> Bounds {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `bounds_cube`
[INFO] [stderr]    --> src/intersectable.rs:221:5
[INFO] [stderr]     |
[INFO] [stderr] 221 |     fn bounds_cube(&self, _shape: &Shape) -> Bounds {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `local_normal_at_triangle`
[INFO] [stderr]    --> src/intersectable.rs:252:5
[INFO] [stderr]     |
[INFO] [stderr] 252 |     fn local_normal_at_triangle(&self, _local_point: &Point) -> Point {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `bounds_triangle`
[INFO] [stderr]    --> src/intersectable.rs:256:5
[INFO] [stderr]     |
[INFO] [stderr] 256 |     fn bounds_triangle(&self, _shape: &Shape) -> Bounds {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `local_intersect_triangle`
[INFO] [stderr]    --> src/intersectable.rs:267:5
[INFO] [stderr]     |
[INFO] [stderr] 267 |     fn local_intersect_triangle(&self, ray: &Ray, object: Arc<Shape>) -> Vec<Intersection> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `bounds_group`
[INFO] [stderr]    --> src/intersectable.rs:296:5
[INFO] [stderr]     |
[INFO] [stderr] 296 |     fn bounds_group(&self, shape: &Shape) -> Bounds {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `local_intersect_group`
[INFO] [stderr]    --> src/intersectable.rs:309:5
[INFO] [stderr]     |
[INFO] [stderr] 309 |     fn local_intersect_group(&self, ray: &Ray, object: Arc<Shape>) -> Vec<Intersection> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `add_group`
[INFO] [stderr]    --> src/intersectable.rs:320:5
[INFO] [stderr]     |
[INFO] [stderr] 320 |     fn add_group(&mut self, shape: Arc<Shape>) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `rotation_z`
[INFO] [stderr]    --> src/matrix.rs:180:5
[INFO] [stderr]     |
[INFO] [stderr] 180 |     pub fn rotation_z(radians: f64) -> Matrix4 {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `shearing`
[INFO] [stderr]    --> src/matrix.rs:189:5
[INFO] [stderr]     |
[INFO] [stderr] 189 |     pub fn shearing(xy: f64, xz: f64, yx: f64, yz: f64, zx: f64, zy: f64) -> Matrix4 {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `equal`
[INFO] [stderr]    --> src/matrix.rs:215:5
[INFO] [stderr]     |
[INFO] [stderr] 215 |     pub fn equal(&self, other: &Matrix3) -> bool {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `equal`
[INFO] [stderr]    --> src/matrix.rs:280:5
[INFO] [stderr]     |
[INFO] [stderr] 280 |     pub fn equal(&self, other: &Matrix2) -> bool {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Blended`
[INFO] [stderr]   --> src/patternable.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 |     Blended(Box<Patternable>, Box<Patternable>),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Gradient`
[INFO] [stderr]   --> src/patternable.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 |     Gradient(Box<Patternable>, Box<Patternable>),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Perlin`
[INFO] [stderr]   --> src/patternable.rs:15:5
[INFO] [stderr]    |
[INFO] [stderr] 15 |     Perlin(PerlinNoise, Box<Patternable>, f64),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Ring`
[INFO] [stderr]   --> src/patternable.rs:16:5
[INFO] [stderr]    |
[INFO] [stderr] 16 |     Ring(Box<Patternable>, Box<Patternable>),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Stripe`
[INFO] [stderr]   --> src/patternable.rs:18:5
[INFO] [stderr]    |
[INFO] [stderr] 18 |     Stripe(Box<Patternable>, Box<Patternable>),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `gradient`
[INFO] [stderr]   --> src/patternable.rs:35:5
[INFO] [stderr]    |
[INFO] [stderr] 35 |     pub fn gradient(color: Color, secondary: Color) -> Patternable {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `stripe`
[INFO] [stderr]   --> src/patternable.rs:55:5
[INFO] [stderr]    |
[INFO] [stderr] 55 |     pub fn stripe(color: Color, secondary: Color) -> Patternable {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `ring`
[INFO] [stderr]   --> src/patternable.rs:65:5
[INFO] [stderr]    |
[INFO] [stderr] 65 |     pub fn ring(color: Color, secondary: Color) -> Patternable {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `blended`
[INFO] [stderr]   --> src/patternable.rs:75:5
[INFO] [stderr]    |
[INFO] [stderr] 75 |     pub fn blended(primary: Patternable, secondary: Patternable) -> Patternable {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `perlin`
[INFO] [stderr]   --> src/patternable.rs:82:5
[INFO] [stderr]    |
[INFO] [stderr] 82 |     pub fn perlin(pattern: Patternable) -> Patternable {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `empty_vector`
[INFO] [stderr]   --> src/point/mod.rs:30:1
[INFO] [stderr]    |
[INFO] [stderr] 30 | pub fn empty_vector() -> Point {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `bounds`
[INFO] [stderr]   --> src/point/mod.rs:34:1
[INFO] [stderr]    |
[INFO] [stderr] 34 | pub fn bounds(points: Vec<Point>) -> Bounds {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `is_point`
[INFO] [stderr]   --> src/point/mod.rs:63:5
[INFO] [stderr]    |
[INFO] [stderr] 63 |     fn is_point(&self) -> bool {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `is_vector`
[INFO] [stderr]   --> src/point/mod.rs:67:5
[INFO] [stderr]    |
[INFO] [stderr] 67 |     fn is_vector(&self) -> bool {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `equal`
[INFO] [stderr]   --> src/point/mod.rs:71:5
[INFO] [stderr]    |
[INFO] [stderr] 71 |     pub fn equal(&self, other: &Point) -> bool {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `negative`
[INFO] [stderr]    --> src/point/mod.rs:114:5
[INFO] [stderr]     |
[INFO] [stderr] 114 |     fn negative(&self) -> Point {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `glass_sphere`
[INFO] [stderr]   --> src/shape.rs:29:5
[INFO] [stderr]    |
[INFO] [stderr] 29 |     pub fn glass_sphere() -> Arc<Shape> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `cube`
[INFO] [stderr]   --> src/shape.rs:55:5
[INFO] [stderr]    |
[INFO] [stderr] 55 |     pub fn cube() -> Arc<Shape> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `triangle`
[INFO] [stderr]   --> src/shape.rs:64:5
[INFO] [stderr]    |
[INFO] [stderr] 64 |     pub fn triangle(a: Point, b: Point, c: Point) -> Arc<Shape> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `group`
[INFO] [stderr]   --> src/shape.rs:73:5
[INFO] [stderr]    |
[INFO] [stderr] 73 |     pub fn group() -> Arc<Shape> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `add_group`
[INFO] [stderr]   --> src/shape.rs:82:5
[INFO] [stderr]    |
[INFO] [stderr] 82 |     pub fn add_group(mut group: Arc<Shape>, mut shape: Arc<Shape>) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `add_shape`
[INFO] [stderr]   --> src/shape.rs:90:5
[INFO] [stderr]    |
[INFO] [stderr] 90 |     pub fn add_shape(mut group: Arc<Shape>, mut shape: Arc<Shape>) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `world_to_object`
[INFO] [stderr]    --> src/shape.rs:101:5
[INFO] [stderr]     |
[INFO] [stderr] 101 |     pub fn world_to_object(&self, world_point: &Point) -> Point {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `bounds`
[INFO] [stderr]    --> src/shape.rs:119:5
[INFO] [stderr]     |
[INFO] [stderr] 119 |     pub fn bounds(&self) -> Bounds {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant `ray_count` should have an upper case name
[INFO] [stderr]  --> src/ray.rs:9:22
[INFO] [stderr]   |
[INFO] [stderr] 9 | thread_local!(static ray_count: RefCell<i64> = RefCell::new(0));
[INFO] [stderr]   |                      ^^^^^^^^^ help: convert the identifier to upper case: `RAY_COUNT`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(non_upper_case_globals)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `white`
[INFO] [stderr]   --> src/main.rs:83:9
[INFO] [stderr]    |
[INFO] [stderr] 83 |     let white = Patternable::solid(Color::white());
[INFO] [stderr]    |         ^^^^^ help: consider prefixing with an underscore: `_white`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `ns`
[INFO] [stderr]    --> src/shape.rs:417:13
[INFO] [stderr]     |
[INFO] [stderr] 417 |         let ns: Vec<(f64, f64)> = prepared_xs.iter().map(|x| (x.n1, x.n2)).collect();
[INFO] [stderr]     |             ^^ help: consider prefixing with an underscore: `_ns`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/matrix.rs:138:21
[INFO] [stderr]     |
[INFO] [stderr] 138 |                 let mut cofactor = self.cofactor(col, row);
[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: struct is never constructed: `Bounds`
[INFO] [stderr]  --> src/bounds.rs:8:1
[INFO] [stderr]   |
[INFO] [stderr] 8 | pub struct Bounds {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/bounds.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 |     pub fn new(xmin: f64, xmax: f64, ymin: f64, ymax: f64, zmin: f64, zmax: f64) -> Bounds {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `check_axis`
[INFO] [stderr]   --> src/bounds.rs:21:5
[INFO] [stderr]    |
[INFO] [stderr] 21 |     fn check_axis(&self, origin: f64, direction: f64, min: f64, max: f64) -> (f64, f64) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `hits`
[INFO] [stderr]   --> src/bounds.rs:40:5
[INFO] [stderr]    |
[INFO] [stderr] 40 |     pub fn hits(&self, ray: &Ray) -> bool {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `add`
[INFO] [stderr]    --> src/intersectable.rs:108:5
[INFO] [stderr]     |
[INFO] [stderr] 108 |     pub fn add(&mut self, shape: Arc<Shape>) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `bounds`
[INFO] [stderr]    --> src/intersectable.rs:124:5
[INFO] [stderr]     |
[INFO] [stderr] 124 |     pub fn bounds(&self, shape: &Shape) -> Bounds {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `bounds_sphere`
[INFO] [stderr]    --> src/intersectable.rs:137:5
[INFO] [stderr]     |
[INFO] [stderr] 137 |     fn bounds_sphere(&self, _shape: &Shape) -> Bounds {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `bounds_plane`
[INFO] [stderr]    --> src/intersectable.rs:168:5
[INFO] [stderr]     |
[INFO] [stderr] 168 |     fn bounds_plane(&self, _shape: &Shape) -> Bounds {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `bounds_cube`
[INFO] [stderr]    --> src/intersectable.rs:221:5
[INFO] [stderr]     |
[INFO] [stderr] 221 |     fn bounds_cube(&self, _shape: &Shape) -> Bounds {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `local_normal_at_triangle`
[INFO] [stderr]    --> src/intersectable.rs:252:5
[INFO] [stderr]     |
[INFO] [stderr] 252 |     fn local_normal_at_triangle(&self, _local_point: &Point) -> Point {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `bounds_triangle`
[INFO] [stderr]    --> src/intersectable.rs:256:5
[INFO] [stderr]     |
[INFO] [stderr] 256 |     fn bounds_triangle(&self, _shape: &Shape) -> Bounds {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `local_intersect_triangle`
[INFO] [stderr]    --> src/intersectable.rs:267:5
[INFO] [stderr]     |
[INFO] [stderr] 267 |     fn local_intersect_triangle(&self, ray: &Ray, object: Arc<Shape>) -> Vec<Intersection> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `bounds_group`
[INFO] [stderr]    --> src/intersectable.rs:296:5
[INFO] [stderr]     |
[INFO] [stderr] 296 |     fn bounds_group(&self, shape: &Shape) -> Bounds {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `local_intersect_group`
[INFO] [stderr]    --> src/intersectable.rs:309:5
[INFO] [stderr]     |
[INFO] [stderr] 309 |     fn local_intersect_group(&self, ray: &Ray, object: Arc<Shape>) -> Vec<Intersection> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `add_group`
[INFO] [stderr]    --> src/intersectable.rs:320:5
[INFO] [stderr]     |
[INFO] [stderr] 320 |     fn add_group(&mut self, shape: Arc<Shape>) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Blended`
[INFO] [stderr]   --> src/patternable.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 |     Blended(Box<Patternable>, Box<Patternable>),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Perlin`
[INFO] [stderr]   --> src/patternable.rs:15:5
[INFO] [stderr]    |
[INFO] [stderr] 15 |     Perlin(PerlinNoise, Box<Patternable>, f64),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Ring`
[INFO] [stderr]   --> src/patternable.rs:16:5
[INFO] [stderr]    |
[INFO] [stderr] 16 |     Ring(Box<Patternable>, Box<Patternable>),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `ring`
[INFO] [stderr]   --> src/patternable.rs:65:5
[INFO] [stderr]    |
[INFO] [stderr] 65 |     pub fn ring(color: Color, secondary: Color) -> Patternable {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `blended`
[INFO] [stderr]   --> src/patternable.rs:75:5
[INFO] [stderr]    |
[INFO] [stderr] 75 |     pub fn blended(primary: Patternable, secondary: Patternable) -> Patternable {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `perlin`
[INFO] [stderr]   --> src/patternable.rs:82:5
[INFO] [stderr]    |
[INFO] [stderr] 82 |     pub fn perlin(pattern: Patternable) -> Patternable {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `bounds`
[INFO] [stderr]   --> src/point/mod.rs:34:1
[INFO] [stderr]    |
[INFO] [stderr] 34 | pub fn bounds(points: Vec<Point>) -> Bounds {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `group`
[INFO] [stderr]   --> src/shape.rs:73:5
[INFO] [stderr]    |
[INFO] [stderr] 73 |     pub fn group() -> Arc<Shape> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `add_group`
[INFO] [stderr]   --> src/shape.rs:82:5
[INFO] [stderr]    |
[INFO] [stderr] 82 |     pub fn add_group(mut group: Arc<Shape>, mut shape: Arc<Shape>) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `add_shape`
[INFO] [stderr]   --> src/shape.rs:90:5
[INFO] [stderr]    |
[INFO] [stderr] 90 |     pub fn add_shape(mut group: Arc<Shape>, mut shape: Arc<Shape>) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `world_to_object`
[INFO] [stderr]    --> src/shape.rs:101:5
[INFO] [stderr]     |
[INFO] [stderr] 101 |     pub fn world_to_object(&self, world_point: &Point) -> Point {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `bounds`
[INFO] [stderr]    --> src/shape.rs:119:5
[INFO] [stderr]     |
[INFO] [stderr] 119 |     pub fn bounds(&self) -> Bounds {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant `ray_count` should have an upper case name
[INFO] [stderr]  --> src/ray.rs:9:22
[INFO] [stderr]   |
[INFO] [stderr] 9 | thread_local!(static ray_count: RefCell<i64> = RefCell::new(0));
[INFO] [stderr]   |                      ^^^^^^^^^ help: convert the identifier to upper case: `RAY_COUNT`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 13.70s
[INFO] running `"docker" "inspect" "4b32f0b40082f48b6874a062403ff8bb5ee36e050f463f4f7d0fa368392345ce"`
[INFO] running `"docker" "rm" "-f" "4b32f0b40082f48b6874a062403ff8bb5ee36e050f463f4f7d0fa368392345ce"`
[INFO] [stdout] 4b32f0b40082f48b6874a062403ff8bb5ee36e050f463f4f7d0fa368392345ce