[INFO] cloning repository https://github.com/jcmorrow/ray_tracer
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jcmorrow/ray_tracer" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjcmorrow%2Fray_tracer", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjcmorrow%2Fray_tracer'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2bc618421ebbedee854b0572f57ea7256a215c68
[INFO] checking jcmorrow/ray_tracer against try#8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8 for pr-82565
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjcmorrow%2Fray_tracer" "/workspace/builds/worker-5/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jcmorrow/ray_tracer on toolchain 8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/jcmorrow/ray_tracer
[INFO] finished tweaking git repo https://github.com/jcmorrow/ray_tracer
[INFO] tweaked toml for git repo https://github.com/jcmorrow/ray_tracer written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/jcmorrow/ray_tracer already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4463da90582ec7621c22c6fc0ab343acfb4e1deb470f94fd24306f6c40563d2d
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "4463da90582ec7621c22c6fc0ab343acfb4e1deb470f94fd24306f6c40563d2d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4463da90582ec7621c22c6fc0ab343acfb4e1deb470f94fd24306f6c40563d2d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4463da90582ec7621c22c6fc0ab343acfb4e1deb470f94fd24306f6c40563d2d", kill_on_drop: false }`
[INFO] [stdout] 4463da90582ec7621c22c6fc0ab343acfb4e1deb470f94fd24306f6c40563d2d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 06c3c2c456ab48ff3fc2c38756e210e7c8bb13e5ff3ec4eeb5783c129768c4fa
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "06c3c2c456ab48ff3fc2c38756e210e7c8bb13e5ff3ec4eeb5783c129768c4fa", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.49
[INFO] [stderr]    Compiling num-traits v0.2.6
[INFO] [stderr]    Compiling arrayvec v0.4.10
[INFO] [stderr]     Checking nodrop v0.1.13
[INFO] [stderr]    Compiling num-integer v0.1.39
[INFO] [stderr]     Checking cfg-if v0.1.6
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[INFO] [stderr]     Checking memoffset v0.2.1
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[INFO] [stderr]    Compiling byteorder v1.3.1
[INFO] [stderr]    Compiling rayon-core v1.4.1
[INFO] [stderr]    Compiling rayon v1.0.3
[INFO] [stderr]     Checking adler32 v1.0.3
[INFO] [stderr]     Checking either v1.5.1
[INFO] [stderr]     Checking color_quant v1.0.1
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[INFO] [stderr]     Checking jpeg-decoder v0.1.15
[INFO] [stderr]     Checking image v0.18.0
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[INFO] [stderr]     Checking ray_tracer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `matrix::Matrix4`
[INFO] [stdout]    --> src/intersectable.rs:329:9
[INFO] [stdout]     |
[INFO] [stdout] 329 |     use matrix::Matrix4;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::f64::consts::PI`
[INFO] [stdout]    --> src/intersectable.rs:331:9
[INFO] [stdout]     |
[INFO] [stdout] 331 |     use std::f64::consts::PI;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `white`
[INFO] [stdout]   --> src/main.rs:83:9
[INFO] [stdout]    |
[INFO] [stdout] 83 |     let white = Patternable::solid(Color::white());
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_white`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/matrix.rs:138:21
[INFO] [stdout]     |
[INFO] [stdout] 138 |                 let mut cofactor = self.cofactor(col, row);
[INFO] [stdout]     |                     ----^^^^^^^^
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Bounds`
[INFO] [stdout]  --> src/bounds.rs:8:12
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub struct Bounds {
[INFO] [stdout]   |            ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/bounds.rs:14:12
[INFO] [stdout]    |
[INFO] [stdout] 14 |     pub fn new(xmin: f64, xmax: f64, ymin: f64, ymax: f64, zmin: f64, zmax: f64) -> Bounds {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `check_axis`
[INFO] [stdout]   --> src/bounds.rs:21:8
[INFO] [stdout]    |
[INFO] [stdout] 21 |     fn check_axis(&self, origin: f64, direction: f64, min: f64, max: f64) -> (f64, f64) {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `hits`
[INFO] [stdout]   --> src/bounds.rs:40:12
[INFO] [stdout]    |
[INFO] [stdout] 40 |     pub fn hits(&self, ray: &Ray) -> bool {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `field_of_view`
[INFO] [stdout]   --> src/camera.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     field_of_view: f64,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `write_pixel`
[INFO] [stdout]   --> src/canvas.rs:27:12
[INFO] [stdout]    |
[INFO] [stdout] 27 |     pub fn write_pixel(&mut self, column: usize, row: usize, color: &Color) {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `pixel_at`
[INFO] [stdout]   --> src/canvas.rs:34:12
[INFO] [stdout]    |
[INFO] [stdout] 34 |     pub fn pixel_at(&self, column: usize, row: usize) -> Color {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `write_all_pixels`
[INFO] [stdout]   --> src/canvas.rs:39:8
[INFO] [stdout]    |
[INFO] [stdout] 39 |     fn write_all_pixels(&mut self, color: &Color) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Cube`
[INFO] [stdout]   --> src/intersectable.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     Cube,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Group`
[INFO] [stdout]   --> src/intersectable.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 |     Group,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Triangle`
[INFO] [stdout]   --> src/intersectable.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 |     Triangle,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `cube`
[INFO] [stdout]   --> src/intersectable.rs:58:12
[INFO] [stdout]    |
[INFO] [stdout] 58 |     pub fn cube() -> Intersectable {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `triangle`
[INFO] [stdout]   --> src/intersectable.rs:71:12
[INFO] [stdout]    |
[INFO] [stdout] 71 |     pub fn triangle(p1: Point, p2: Point, p3: Point) -> Intersectable {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `group`
[INFO] [stdout]   --> src/intersectable.rs:86:12
[INFO] [stdout]    |
[INFO] [stdout] 86 |     pub fn group() -> Intersectable {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `add`
[INFO] [stdout]    --> src/intersectable.rs:108:12
[INFO] [stdout]     |
[INFO] [stdout] 108 |     pub fn add(&mut self, shape: Arc<Shape>) {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `bounds`
[INFO] [stdout]    --> src/intersectable.rs:124:12
[INFO] [stdout]     |
[INFO] [stdout] 124 |     pub fn bounds(&self, shape: &Shape) -> Bounds {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `bounds_sphere`
[INFO] [stdout]    --> src/intersectable.rs:137:8
[INFO] [stdout]     |
[INFO] [stdout] 137 |     fn bounds_sphere(&self, _shape: &Shape) -> Bounds {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `bounds_plane`
[INFO] [stdout]    --> src/intersectable.rs:168:8
[INFO] [stdout]     |
[INFO] [stdout] 168 |     fn bounds_plane(&self, _shape: &Shape) -> Bounds {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `bounds_cube`
[INFO] [stdout]    --> src/intersectable.rs:221:8
[INFO] [stdout]     |
[INFO] [stdout] 221 |     fn bounds_cube(&self, _shape: &Shape) -> Bounds {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `local_normal_at_triangle`
[INFO] [stdout]    --> src/intersectable.rs:252:8
[INFO] [stdout]     |
[INFO] [stdout] 252 |     fn local_normal_at_triangle(&self, _local_point: &Point) -> Point {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `bounds_triangle`
[INFO] [stdout]    --> src/intersectable.rs:256:8
[INFO] [stdout]     |
[INFO] [stdout] 256 |     fn bounds_triangle(&self, _shape: &Shape) -> Bounds {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `local_intersect_triangle`
[INFO] [stdout]    --> src/intersectable.rs:267:8
[INFO] [stdout]     |
[INFO] [stdout] 267 |     fn local_intersect_triangle(&self, ray: &Ray, object: Arc<Shape>) -> Vec<Intersection> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `bounds_group`
[INFO] [stdout]    --> src/intersectable.rs:296:8
[INFO] [stdout]     |
[INFO] [stdout] 296 |     fn bounds_group(&self, shape: &Shape) -> Bounds {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `local_intersect_group`
[INFO] [stdout]    --> src/intersectable.rs:309:8
[INFO] [stdout]     |
[INFO] [stdout] 309 |     fn local_intersect_group(&self, ray: &Ray, object: Arc<Shape>) -> Vec<Intersection> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `add_group`
[INFO] [stdout]    --> src/intersectable.rs:320:8
[INFO] [stdout]     |
[INFO] [stdout] 320 |     fn add_group(&mut self, shape: Arc<Shape>) {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `rotation_z`
[INFO] [stdout]    --> src/matrix.rs:180:12
[INFO] [stdout]     |
[INFO] [stdout] 180 |     pub fn rotation_z(radians: f64) -> Matrix4 {
[INFO] [stdout]     |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `shearing`
[INFO] [stdout]    --> src/matrix.rs:189:12
[INFO] [stdout]     |
[INFO] [stdout] 189 |     pub fn shearing(xy: f64, xz: f64, yx: f64, yz: f64, zx: f64, zy: f64) -> Matrix4 {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `equal`
[INFO] [stdout]    --> src/matrix.rs:215:12
[INFO] [stdout]     |
[INFO] [stdout] 215 |     pub fn equal(&self, other: &Matrix3) -> bool {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `equal`
[INFO] [stdout]    --> src/matrix.rs:280:12
[INFO] [stdout]     |
[INFO] [stdout] 280 |     pub fn equal(&self, other: &Matrix2) -> bool {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Blended`
[INFO] [stdout]   --> src/patternable.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     Blended(Box<Patternable>, Box<Patternable>),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Gradient`
[INFO] [stdout]   --> src/patternable.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 |     Gradient(Box<Patternable>, Box<Patternable>),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Perlin`
[INFO] [stdout]   --> src/patternable.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 |     Perlin(PerlinNoise, Box<Patternable>, f64),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Ring`
[INFO] [stdout]   --> src/patternable.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 |     Ring(Box<Patternable>, Box<Patternable>),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Stripe`
[INFO] [stdout]   --> src/patternable.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 18 |     Stripe(Box<Patternable>, Box<Patternable>),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `gradient`
[INFO] [stdout]   --> src/patternable.rs:35:12
[INFO] [stdout]    |
[INFO] [stdout] 35 |     pub fn gradient(color: Color, secondary: Color) -> Patternable {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `stripe`
[INFO] [stdout]   --> src/patternable.rs:55:12
[INFO] [stdout]    |
[INFO] [stdout] 55 |     pub fn stripe(color: Color, secondary: Color) -> Patternable {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `ring`
[INFO] [stdout]   --> src/patternable.rs:65:12
[INFO] [stdout]    |
[INFO] [stdout] 65 |     pub fn ring(color: Color, secondary: Color) -> Patternable {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `blended`
[INFO] [stdout]   --> src/patternable.rs:75:12
[INFO] [stdout]    |
[INFO] [stdout] 75 |     pub fn blended(primary: Patternable, secondary: Patternable) -> Patternable {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `perlin`
[INFO] [stdout]   --> src/patternable.rs:82:12
[INFO] [stdout]    |
[INFO] [stdout] 82 |     pub fn perlin(pattern: Patternable) -> Patternable {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `empty_vector`
[INFO] [stdout]   --> src/point/mod.rs:30:8
[INFO] [stdout]    |
[INFO] [stdout] 30 | pub fn empty_vector() -> Point {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `bounds`
[INFO] [stdout]   --> src/point/mod.rs:34:8
[INFO] [stdout]    |
[INFO] [stdout] 34 | pub fn bounds(points: Vec<Point>) -> Bounds {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_point`
[INFO] [stdout]   --> src/point/mod.rs:63:8
[INFO] [stdout]    |
[INFO] [stdout] 63 |     fn is_point(&self) -> bool {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_vector`
[INFO] [stdout]   --> src/point/mod.rs:67:8
[INFO] [stdout]    |
[INFO] [stdout] 67 |     fn is_vector(&self) -> bool {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `equal`
[INFO] [stdout]   --> src/point/mod.rs:71:12
[INFO] [stdout]    |
[INFO] [stdout] 71 |     pub fn equal(&self, other: &Point) -> bool {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `negative`
[INFO] [stdout]    --> src/point/mod.rs:114:8
[INFO] [stdout]     |
[INFO] [stdout] 114 |     fn negative(&self) -> Point {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `glass_sphere`
[INFO] [stdout]   --> src/shape.rs:29:12
[INFO] [stdout]    |
[INFO] [stdout] 29 |     pub fn glass_sphere() -> Arc<Shape> {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `cube`
[INFO] [stdout]   --> src/shape.rs:55:12
[INFO] [stdout]    |
[INFO] [stdout] 55 |     pub fn cube() -> Arc<Shape> {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `triangle`
[INFO] [stdout]   --> src/shape.rs:64:12
[INFO] [stdout]    |
[INFO] [stdout] 64 |     pub fn triangle(a: Point, b: Point, c: Point) -> Arc<Shape> {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `group`
[INFO] [stdout]   --> src/shape.rs:73:12
[INFO] [stdout]    |
[INFO] [stdout] 73 |     pub fn group() -> Arc<Shape> {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `add_group`
[INFO] [stdout]   --> src/shape.rs:82:12
[INFO] [stdout]    |
[INFO] [stdout] 82 |     pub fn add_group(mut group: Arc<Shape>, mut shape: Arc<Shape>) {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `add_shape`
[INFO] [stdout]   --> src/shape.rs:90:12
[INFO] [stdout]    |
[INFO] [stdout] 90 |     pub fn add_shape(mut group: Arc<Shape>, mut shape: Arc<Shape>) {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `world_to_object`
[INFO] [stdout]    --> src/shape.rs:101:12
[INFO] [stdout]     |
[INFO] [stdout] 101 |     pub fn world_to_object(&self, world_point: &Point) -> Point {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `bounds`
[INFO] [stdout]    --> src/shape.rs:119:12
[INFO] [stdout]     |
[INFO] [stdout] 119 |     pub fn bounds(&self) -> Bounds {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `ray_count` should have an upper case name
[INFO] [stdout]  --> src/ray.rs:9:22
[INFO] [stdout]   |
[INFO] [stdout] 9 | thread_local!(static ray_count: RefCell<i64> = RefCell::new(0));
[INFO] [stdout]   |                      ^^^^^^^^^ help: convert the identifier to upper case: `RAY_COUNT`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_upper_case_globals)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 56 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `white`
[INFO] [stdout]   --> src/main.rs:83:9
[INFO] [stdout]    |
[INFO] [stdout] 83 |     let white = Patternable::solid(Color::white());
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_white`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ns`
[INFO] [stdout]    --> src/shape.rs:417:13
[INFO] [stdout]     |
[INFO] [stdout] 417 |         let ns: Vec<(f64, f64)> = prepared_xs.iter().map(|x| (x.n1, x.n2)).collect();
[INFO] [stdout]     |             ^^ help: if this is intentional, prefix it with an underscore: `_ns`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/matrix.rs:138:21
[INFO] [stdout]     |
[INFO] [stdout] 138 |                 let mut cofactor = self.cofactor(col, row);
[INFO] [stdout]     |                     ----^^^^^^^^
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Bounds`
[INFO] [stdout]  --> src/bounds.rs:8:12
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub struct Bounds {
[INFO] [stdout]   |            ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/bounds.rs:14:12
[INFO] [stdout]    |
[INFO] [stdout] 14 |     pub fn new(xmin: f64, xmax: f64, ymin: f64, ymax: f64, zmin: f64, zmax: f64) -> Bounds {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `check_axis`
[INFO] [stdout]   --> src/bounds.rs:21:8
[INFO] [stdout]    |
[INFO] [stdout] 21 |     fn check_axis(&self, origin: f64, direction: f64, min: f64, max: f64) -> (f64, f64) {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `hits`
[INFO] [stdout]   --> src/bounds.rs:40:12
[INFO] [stdout]    |
[INFO] [stdout] 40 |     pub fn hits(&self, ray: &Ray) -> bool {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `add`
[INFO] [stdout]    --> src/intersectable.rs:108:12
[INFO] [stdout]     |
[INFO] [stdout] 108 |     pub fn add(&mut self, shape: Arc<Shape>) {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `bounds`
[INFO] [stdout]    --> src/intersectable.rs:124:12
[INFO] [stdout]     |
[INFO] [stdout] 124 |     pub fn bounds(&self, shape: &Shape) -> Bounds {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `bounds_sphere`
[INFO] [stdout]    --> src/intersectable.rs:137:8
[INFO] [stdout]     |
[INFO] [stdout] 137 |     fn bounds_sphere(&self, _shape: &Shape) -> Bounds {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `bounds_plane`
[INFO] [stdout]    --> src/intersectable.rs:168:8
[INFO] [stdout]     |
[INFO] [stdout] 168 |     fn bounds_plane(&self, _shape: &Shape) -> Bounds {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `bounds_cube`
[INFO] [stdout]    --> src/intersectable.rs:221:8
[INFO] [stdout]     |
[INFO] [stdout] 221 |     fn bounds_cube(&self, _shape: &Shape) -> Bounds {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `local_normal_at_triangle`
[INFO] [stdout]    --> src/intersectable.rs:252:8
[INFO] [stdout]     |
[INFO] [stdout] 252 |     fn local_normal_at_triangle(&self, _local_point: &Point) -> Point {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `bounds_triangle`
[INFO] [stdout]    --> src/intersectable.rs:256:8
[INFO] [stdout]     |
[INFO] [stdout] 256 |     fn bounds_triangle(&self, _shape: &Shape) -> Bounds {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `local_intersect_triangle`
[INFO] [stdout]    --> src/intersectable.rs:267:8
[INFO] [stdout]     |
[INFO] [stdout] 267 |     fn local_intersect_triangle(&self, ray: &Ray, object: Arc<Shape>) -> Vec<Intersection> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `bounds_group`
[INFO] [stdout]    --> src/intersectable.rs:296:8
[INFO] [stdout]     |
[INFO] [stdout] 296 |     fn bounds_group(&self, shape: &Shape) -> Bounds {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `local_intersect_group`
[INFO] [stdout]    --> src/intersectable.rs:309:8
[INFO] [stdout]     |
[INFO] [stdout] 309 |     fn local_intersect_group(&self, ray: &Ray, object: Arc<Shape>) -> Vec<Intersection> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `add_group`
[INFO] [stdout]    --> src/intersectable.rs:320:8
[INFO] [stdout]     |
[INFO] [stdout] 320 |     fn add_group(&mut self, shape: Arc<Shape>) {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Blended`
[INFO] [stdout]   --> src/patternable.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     Blended(Box<Patternable>, Box<Patternable>),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Perlin`
[INFO] [stdout]   --> src/patternable.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 |     Perlin(PerlinNoise, Box<Patternable>, f64),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Ring`
[INFO] [stdout]   --> src/patternable.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 |     Ring(Box<Patternable>, Box<Patternable>),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `ring`
[INFO] [stdout]   --> src/patternable.rs:65:12
[INFO] [stdout]    |
[INFO] [stdout] 65 |     pub fn ring(color: Color, secondary: Color) -> Patternable {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `blended`
[INFO] [stdout]   --> src/patternable.rs:75:12
[INFO] [stdout]    |
[INFO] [stdout] 75 |     pub fn blended(primary: Patternable, secondary: Patternable) -> Patternable {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `perlin`
[INFO] [stdout]   --> src/patternable.rs:82:12
[INFO] [stdout]    |
[INFO] [stdout] 82 |     pub fn perlin(pattern: Patternable) -> Patternable {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `bounds`
[INFO] [stdout]   --> src/point/mod.rs:34:8
[INFO] [stdout]    |
[INFO] [stdout] 34 | pub fn bounds(points: Vec<Point>) -> Bounds {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `group`
[INFO] [stdout]   --> src/shape.rs:73:12
[INFO] [stdout]    |
[INFO] [stdout] 73 |     pub fn group() -> Arc<Shape> {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `add_group`
[INFO] [stdout]   --> src/shape.rs:82:12
[INFO] [stdout]    |
[INFO] [stdout] 82 |     pub fn add_group(mut group: Arc<Shape>, mut shape: Arc<Shape>) {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `add_shape`
[INFO] [stdout]   --> src/shape.rs:90:12
[INFO] [stdout]    |
[INFO] [stdout] 90 |     pub fn add_shape(mut group: Arc<Shape>, mut shape: Arc<Shape>) {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `world_to_object`
[INFO] [stdout]    --> src/shape.rs:101:12
[INFO] [stdout]     |
[INFO] [stdout] 101 |     pub fn world_to_object(&self, world_point: &Point) -> Point {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `bounds`
[INFO] [stdout]    --> src/shape.rs:119:12
[INFO] [stdout]     |
[INFO] [stdout] 119 |     pub fn bounds(&self) -> Bounds {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `ray_count` should have an upper case name
[INFO] [stdout]  --> src/ray.rs:9:22
[INFO] [stdout]   |
[INFO] [stdout] 9 | thread_local!(static ray_count: RefCell<i64> = RefCell::new(0));
[INFO] [stdout]   |                      ^^^^^^^^^ help: convert the identifier to upper case: `RAY_COUNT`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_upper_case_globals)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 33 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 23.35s
[INFO] running `Command { std: "docker" "inspect" "06c3c2c456ab48ff3fc2c38756e210e7c8bb13e5ff3ec4eeb5783c129768c4fa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "06c3c2c456ab48ff3fc2c38756e210e7c8bb13e5ff3ec4eeb5783c129768c4fa", kill_on_drop: false }`
[INFO] [stdout] 06c3c2c456ab48ff3fc2c38756e210e7c8bb13e5ff3ec4eeb5783c129768c4fa