[INFO] cloning repository https://github.com/eatrero/rust_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/eatrero/rust_ray_tracer" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Featrero%2Frust_ray_tracer", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Featrero%2Frust_ray_tracer'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8f1f3d20c2cfaf825116eb00e0ea657349f1ab07
[INFO] testing eatrero/rust_ray_tracer against beta-2021-08-01 for beta-1.55-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Featrero%2Frust_ray_tracer" "/workspace/builds/worker-115/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-115/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/eatrero/rust_ray_tracer on toolchain beta-2021-08-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/eatrero/rust_ray_tracer
[INFO] finished tweaking git repo https://github.com/eatrero/rust_ray_tracer
[INFO] tweaked toml for git repo https://github.com/eatrero/rust_ray_tracer written to /workspace/builds/worker-115/source/Cargo.toml
[INFO] crate git repo https://github.com/eatrero/rust_ray_tracer already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating git repository `https://github.com/rust-lang/rand`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-115/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-115/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 082ddc92f63f250ef4963c3ea4fec675156402e4b0942dae3e84210e3b5114a7
[INFO] running `Command { std: "docker" "start" "-a" "082ddc92f63f250ef4963c3ea4fec675156402e4b0942dae3e84210e3b5114a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "082ddc92f63f250ef4963c3ea4fec675156402e4b0942dae3e84210e3b5114a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "082ddc92f63f250ef4963c3ea4fec675156402e4b0942dae3e84210e3b5114a7", kill_on_drop: false }`
[INFO] [stdout] 082ddc92f63f250ef4963c3ea4fec675156402e4b0942dae3e84210e3b5114a7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-115/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-115/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=warn" "-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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6c37461235266edaf3ffd5c6ae8263d35427ec6a9161b063d8c69a02d2ccb5e5
[INFO] running `Command { std: "docker" "start" "-a" "6c37461235266edaf3ffd5c6ae8263d35427ec6a9161b063d8c69a02d2ccb5e5", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v0.1.2
[INFO] [stderr]    Compiling rand_core v0.4.0 (https://github.com/rust-lang/rand#8d7d0b6d)
[INFO] [stderr]    Compiling libc v0.2.50
[INFO] [stderr]    Compiling arrayvec v0.4.10
[INFO] [stderr]    Compiling nodrop v0.1.13
[INFO] [stderr]    Compiling cfg-if v0.1.7
[INFO] [stderr]    Compiling memoffset v0.2.1
[INFO] [stderr]    Compiling lazy_static v1.3.0
[INFO] [stderr]    Compiling scopeguard v0.3.3
[INFO] [stderr]    Compiling rayon-core v1.4.1
[INFO] [stderr]    Compiling rayon v1.0.3
[INFO] [stderr]    Compiling either v1.5.2
[INFO] [stderr]    Compiling crossbeam-utils v0.2.2
[INFO] [stderr]    Compiling rand_jitter v0.1.3 (https://github.com/rust-lang/rand#8d7d0b6d)
[INFO] [stderr]    Compiling rand_isaac v0.1.1 (https://github.com/rust-lang/rand#8d7d0b6d)
[INFO] [stderr]    Compiling rand_hc v0.1.0 (https://github.com/rust-lang/rand#8d7d0b6d)
[INFO] [stderr]    Compiling rand_xorshift v0.1.1 (https://github.com/rust-lang/rand#8d7d0b6d)
[INFO] [stderr]    Compiling rand_pcg v0.1.2 (https://github.com/rust-lang/rand#8d7d0b6d)
[INFO] [stderr]    Compiling rand_chacha v0.1.1 (https://github.com/rust-lang/rand#8d7d0b6d)
[INFO] [stderr]    Compiling rand v0.6.5 (https://github.com/rust-lang/rand#8d7d0b6d)
[INFO] [stderr]    Compiling num_cpus v1.10.0
[INFO] [stderr]    Compiling rand_os v0.1.3 (https://github.com/rust-lang/rand#8d7d0b6d)
[INFO] [stderr]    Compiling crossbeam-epoch v0.3.1
[INFO] [stderr]    Compiling crossbeam-deque v0.2.0
[INFO] [stderr]    Compiling ray_tracer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `crate::material::Material`
[INFO] [stdout]  --> src/world/mod.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use crate::material::Material;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::matrix::Matrix`
[INFO] [stdout]  --> src/world/mod.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use crate::matrix::Matrix;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `PatternType`, `Pattern`
[INFO] [stdout]  --> src/world/mod.rs:8:22
[INFO] [stdout]   |
[INFO] [stdout] 8 | use crate::pattern::{Pattern, PatternType};
[INFO] [stdout]   |                      ^^^^^^^  ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::shape::sphere::Sphere`
[INFO] [stdout]   --> src/world/mod.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use crate::shape::sphere::Sphere;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `vector`
[INFO] [stdout]   --> src/world/mod.rs:13:34
[INFO] [stdout]    |
[INFO] [stdout] 13 | use crate::vectors::{dot, point, vector, Tuple};
[INFO] [stdout]    |                                  ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `canvas::Canvas`
[INFO] [stdout]   --> src/main.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | use canvas::Canvas;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `point`, `vector`
[INFO] [stdout]  --> src/transform/mod.rs:3:29
[INFO] [stdout]   |
[INFO] [stdout] 3 | use crate::vectors::{cross, point, vector};
[INFO] [stdout]   |                             ^^^^^  ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::shape::plane::Plane`
[INFO] [stdout]  --> src/intersections/mod.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::shape::plane::Plane;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::shape::sphere::Sphere`
[INFO] [stdout]  --> src/intersections/mod.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use crate::shape::sphere::Sphere;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ShapeType`
[INFO] [stdout]  --> src/intersections/mod.rs:4:27
[INFO] [stdout]   |
[INFO] [stdout] 4 | use crate::shape::{Shape, ShapeType};
[INFO] [stdout]   |                           ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::transform::Transform`
[INFO] [stdout]  --> src/intersections/mod.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use crate::transform::Transform;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `point`, `vector`
[INFO] [stdout]  --> src/intersections/mod.rs:6:27
[INFO] [stdout]   |
[INFO] [stdout] 6 | use crate::vectors::{dot, point, reflect, vector, Tuple};
[INFO] [stdout]   |                           ^^^^^           ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::transform::Transform`
[INFO] [stdout]  --> src/ray/mod.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::transform::Transform;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `point`, `vector`
[INFO] [stdout]  --> src/ray/mod.rs:4:22
[INFO] [stdout]   |
[INFO] [stdout] 4 | use crate::vectors::{point, vector};
[INFO] [stdout]   |                      ^^^^^  ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ray::Ray`
[INFO] [stdout]   --> src/main.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 20 | use ray::Ray;
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::colors::Color`
[INFO] [stdout]  --> src/shape/mod.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::colors::Color;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Intersection`, `prepare_computations`
[INFO] [stdout]  --> src/shape/mod.rs:2:28
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::intersections::{prepare_computations, Intersection, Intersections};
[INFO] [stdout]   |                            ^^^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::transform::Transform`
[INFO] [stdout]  --> src/shape/mod.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use crate::transform::Transform;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `dot`
[INFO] [stdout]  --> src/shape/mod.rs:7:22
[INFO] [stdout]   |
[INFO] [stdout] 7 | use crate::vectors::{dot, point, vector, Tuple};
[INFO] [stdout]   |                      ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::f64`
[INFO] [stdout]  --> src/shape/mod.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use std::f64;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::colors::Color`
[INFO] [stdout]  --> src/shape/plane.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::colors::Color;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::transform::Transform`
[INFO] [stdout]  --> src/shape/plane.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use crate::transform::Transform;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `dot`, `point`
[INFO] [stdout]  --> src/shape/plane.rs:8:22
[INFO] [stdout]   |
[INFO] [stdout] 8 | use crate::vectors::{dot, point, vector, Tuple};
[INFO] [stdout]   |                      ^^^  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::f64`
[INFO] [stdout]   --> src/shape/plane.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use std::f64;
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/shape/plane.rs:30:8
[INFO] [stdout]    |
[INFO] [stdout] 30 |     if (ray.direction.y.abs() < 1e-10) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::colors::Color`
[INFO] [stdout]  --> src/shape/sphere.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::colors::Color;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ShapeType`
[INFO] [stdout]  --> src/shape/sphere.rs:6:27
[INFO] [stdout]   |
[INFO] [stdout] 6 | use crate::shape::{Shape, ShapeType};
[INFO] [stdout]   |                           ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::transform::Transform`
[INFO] [stdout]  --> src/shape/sphere.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use crate::transform::Transform;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `vector`
[INFO] [stdout]  --> src/shape/sphere.rs:8:34
[INFO] [stdout]   |
[INFO] [stdout] 8 | use crate::vectors::{dot, point, vector, Tuple};
[INFO] [stdout]   |                                  ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ShapeType`
[INFO] [stdout]  --> src/light/mod.rs:3:27
[INFO] [stdout]   |
[INFO] [stdout] 3 | use crate::shape::{Shape, ShapeType};
[INFO] [stdout]   |                           ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `point`, `vector`
[INFO] [stdout]  --> src/light/mod.rs:4:27
[INFO] [stdout]   |
[INFO] [stdout] 4 | use crate::vectors::{dot, point, reflect, vector, Tuple};
[INFO] [stdout]   |                           ^^^^^           ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/light/mod.rs:60:6
[INFO] [stdout]    |
[INFO] [stdout] 60 |   if (is_in_shadow) {
[INFO] [stdout]    |      ^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `lighting`
[INFO] [stdout]   --> src/main.rs:25:13
[INFO] [stdout]    |
[INFO] [stdout] 25 | use light::{lighting, PointLight};
[INFO] [stdout]    |             ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::transform::Transform`
[INFO] [stdout]  --> src/camera/mod.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use crate::transform::Transform;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Tuple`, `vector`
[INFO] [stdout]  --> src/camera/mod.rs:6:29
[INFO] [stdout]   |
[INFO] [stdout] 6 | use crate::vectors::{point, vector, Tuple};
[INFO] [stdout]   |                             ^^^^^^  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::thread`
[INFO] [stdout]  --> src/camera/mod.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use std::thread;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `for` iterator expression
[INFO] [stdout]   --> src/camera/mod.rs:90:14
[INFO] [stdout]    |
[INFO] [stdout] 90 |     for y in (0..self.vsize) {
[INFO] [stdout]    |              ^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `for` iterator expression
[INFO] [stdout]   --> src/camera/mod.rs:91:16
[INFO] [stdout]    |
[INFO] [stdout] 91 |       for x in (0..self.hsize) {
[INFO] [stdout]    |                ^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `PointLight`, `lighting`
[INFO] [stdout]  --> src/material/mod.rs:2:20
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::light::{lighting, PointLight};
[INFO] [stdout]   |                    ^^^^^^^^  ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `PatternType`
[INFO] [stdout]  --> src/material/mod.rs:3:31
[INFO] [stdout]   |
[INFO] [stdout] 3 | use crate::pattern::{Pattern, PatternType};
[INFO] [stdout]   |                               ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `ShapeType`, `Shape`
[INFO] [stdout]  --> src/material/mod.rs:4:20
[INFO] [stdout]   |
[INFO] [stdout] 4 | use crate::shape::{Shape, ShapeType};
[INFO] [stdout]   |                    ^^^^^  ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Tuple`, `point`, `vector`
[INFO] [stdout]  --> src/material/mod.rs:5:22
[INFO] [stdout]   |
[INFO] [stdout] 5 | use crate::vectors::{point, vector, Tuple};
[INFO] [stdout]   |                      ^^^^^  ^^^^^^  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Duration`
[INFO] [stdout]   --> src/main.rs:30:17
[INFO] [stdout]    |
[INFO] [stdout] 30 | use std::time::{Duration, Instant};
[INFO] [stdout]    |                 ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ShapeType`
[INFO] [stdout]  --> src/pattern/mod.rs:3:27
[INFO] [stdout]   |
[INFO] [stdout] 3 | use crate::shape::{Shape, ShapeType};
[INFO] [stdout]   |                           ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `point`, `vector`
[INFO] [stdout]  --> src/pattern/mod.rs:4:22
[INFO] [stdout]   |
[INFO] [stdout] 4 | use crate::vectors::{point, vector, Tuple};
[INFO] [stdout]   |                      ^^^^^  ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::Transform`
[INFO] [stdout]  --> src/pattern/mod.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use crate::Transform;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::matrix::Matrix`
[INFO] [stdout]  --> src/pattern/checker.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::matrix::Matrix;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `PatternType`
[INFO] [stdout]  --> src/pattern/checker.rs:3:31
[INFO] [stdout]   |
[INFO] [stdout] 3 | use crate::pattern::{Pattern, PatternType};
[INFO] [stdout]   |                               ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `ShapeType`, `Shape`
[INFO] [stdout]  --> src/pattern/checker.rs:4:20
[INFO] [stdout]   |
[INFO] [stdout] 4 | use crate::shape::{Shape, ShapeType};
[INFO] [stdout]   |                    ^^^^^  ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `point`, `vector`
[INFO] [stdout]  --> src/pattern/checker.rs:5:22
[INFO] [stdout]   |
[INFO] [stdout] 5 | use crate::vectors::{point, vector, Tuple};
[INFO] [stdout]   |                      ^^^^^  ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::Transform`
[INFO] [stdout]  --> src/pattern/checker.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use crate::Transform;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::matrix::Matrix`
[INFO] [stdout]  --> src/pattern/gradient.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::matrix::Matrix;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `PatternType`
[INFO] [stdout]  --> src/pattern/gradient.rs:3:31
[INFO] [stdout]   |
[INFO] [stdout] 3 | use crate::pattern::{Pattern, PatternType};
[INFO] [stdout]   |                               ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `ShapeType`, `Shape`
[INFO] [stdout]  --> src/pattern/gradient.rs:4:20
[INFO] [stdout]   |
[INFO] [stdout] 4 | use crate::shape::{Shape, ShapeType};
[INFO] [stdout]   |                    ^^^^^  ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `point`, `vector`
[INFO] [stdout]  --> src/pattern/gradient.rs:5:22
[INFO] [stdout]   |
[INFO] [stdout] 5 | use crate::vectors::{point, vector, Tuple};
[INFO] [stdout]   |                      ^^^^^  ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::Transform`
[INFO] [stdout]  --> src/pattern/gradient.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use crate::Transform;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::matrix::Matrix`
[INFO] [stdout]  --> src/pattern/ring.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::matrix::Matrix;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `PatternType`
[INFO] [stdout]  --> src/pattern/ring.rs:3:31
[INFO] [stdout]   |
[INFO] [stdout] 3 | use crate::pattern::{Pattern, PatternType};
[INFO] [stdout]   |                               ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `ShapeType`, `Shape`
[INFO] [stdout]  --> src/pattern/ring.rs:4:20
[INFO] [stdout]   |
[INFO] [stdout] 4 | use crate::shape::{Shape, ShapeType};
[INFO] [stdout]   |                    ^^^^^  ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `point`, `vector`
[INFO] [stdout]  --> src/pattern/ring.rs:5:22
[INFO] [stdout]   |
[INFO] [stdout] 5 | use crate::vectors::{point, vector, Tuple};
[INFO] [stdout]   |                      ^^^^^  ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::Transform`
[INFO] [stdout]  --> src/pattern/ring.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use crate::Transform;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::matrix::Matrix`
[INFO] [stdout]  --> src/pattern/stripe.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::matrix::Matrix;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `PatternType`
[INFO] [stdout]  --> src/pattern/stripe.rs:3:31
[INFO] [stdout]   |
[INFO] [stdout] 3 | use crate::pattern::{Pattern, PatternType};
[INFO] [stdout]   |                               ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `ShapeType`, `Shape`
[INFO] [stdout]  --> src/pattern/stripe.rs:4:20
[INFO] [stdout]   |
[INFO] [stdout] 4 | use crate::shape::{Shape, ShapeType};
[INFO] [stdout]   |                    ^^^^^  ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `point`, `vector`
[INFO] [stdout]  --> src/pattern/stripe.rs:5:22
[INFO] [stdout]   |
[INFO] [stdout] 5 | use crate::vectors::{point, vector, Tuple};
[INFO] [stdout]   |                      ^^^^^  ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::Transform`
[INFO] [stdout]  --> src/pattern/stripe.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use crate::Transform;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable statement
[INFO] [stdout]    --> src/world/mod.rs:198:5
[INFO] [stdout]     |
[INFO] [stdout] 196 |     return Color::mult(color, comps.object.material.transparency);
[INFO] [stdout]     |     ------------------------------------------------------------- any code following this expression is unreachable
[INFO] [stdout] 197 | 
[INFO] [stdout] 198 |     return color;
[INFO] [stdout]     |     ^^^^^^^^^^^^^ unreachable statement
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/canvas/mod.rs:42:65
[INFO] [stdout]    |
[INFO] [stdout] 42 |       Err(why) => panic!("couldn't create {}: {}", display, why.description()),
[INFO] [stdout]    |                                                                 ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/canvas/mod.rs:49:67
[INFO] [stdout]    |
[INFO] [stdout] 49 |       Err(why) => panic!("couldn't write to {}: {}", display, why.description()),
[INFO] [stdout]    |                                                                   ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `hit`
[INFO] [stdout]   --> src/intersections/mod.rs:64:7
[INFO] [stdout]    |
[INFO] [stdout] 64 |   let hit = xs.hit();
[INFO] [stdout]    |       ^^^ help: if this is intentional, prefix it with an underscore: `_hit`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `object`
[INFO] [stdout]   --> src/shape/plane.rs:46:20
[INFO] [stdout]    |
[INFO] [stdout] 46 |   pub fn normal_at(object: &Shape, local_point: Tuple) -> Tuple {
[INFO] [stdout]    |                    ^^^^^^ help: if this is intentional, prefix it with an underscore: `_object`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `local_point`
[INFO] [stdout]   --> src/shape/plane.rs:46:36
[INFO] [stdout]    |
[INFO] [stdout] 46 |   pub fn normal_at(object: &Shape, local_point: Tuple) -> Tuple {
[INFO] [stdout]    |                                    ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_local_point`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `object`
[INFO] [stdout]   --> src/shape/sphere.rs:69:20
[INFO] [stdout]    |
[INFO] [stdout] 69 |   pub fn normal_at(object: &Shape, object_point: Tuple) -> Tuple {
[INFO] [stdout]    |                    ^^^^^^ help: if this is intentional, prefix it with an underscore: `_object`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:56:9
[INFO] [stdout]    |
[INFO] [stdout] 56 |     let mut floor_pattern = Pattern::new(
[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: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:72:9
[INFO] [stdout]    |
[INFO] [stdout] 72 |     let mut pattern = Pattern::new(
[INFO] [stdout]    |         ----^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:89:9
[INFO] [stdout]    |
[INFO] [stdout] 89 |     let mut pattern = Pattern::new(
[INFO] [stdout]    |         ----^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/light/mod.rs:30:7
[INFO] [stdout]    |
[INFO] [stdout] 30 |   let mut diffuse;
[INFO] [stdout]    |       ----^^^^^^^
[INFO] [stdout]    |       |
[INFO] [stdout]    |       help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/light/mod.rs:31:7
[INFO] [stdout]    |
[INFO] [stdout] 31 |   let mut specular;
[INFO] [stdout]    |       ----^^^^^^^^
[INFO] [stdout]    |       |
[INFO] [stdout]    |       help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/camera/mod.rs:25:9
[INFO] [stdout]    |
[INFO] [stdout] 25 |     let mut half_width;
[INFO] [stdout]    |         ----^^^^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/camera/mod.rs:26:9
[INFO] [stdout]    |
[INFO] [stdout] 26 |     let mut half_height;
[INFO] [stdout]    |         ----^^^^^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/camera/mod.rs:27:9
[INFO] [stdout]    |
[INFO] [stdout] 27 |     let mut half_view = (fov / 2.0).tan();
[INFO] [stdout]    |         ----^^^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_a_point`
[INFO] [stdout]   --> src/vectors/mod.rs:19:10
[INFO] [stdout]    |
[INFO] [stdout] 19 |   pub fn is_a_point(&self) -> bool {
[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: `is_a_vector`
[INFO] [stdout]   --> src/vectors/mod.rs:22:10
[INFO] [stdout]    |
[INFO] [stdout] 22 |   pub fn is_a_vector(&self) -> bool {
[INFO] [stdout]    |          ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `equals`
[INFO] [stdout]   --> src/vectors/mod.rs:25:10
[INFO] [stdout]    |
[INFO] [stdout] 25 |   pub fn equals(&self, p: Tuple) -> bool {
[INFO] [stdout]    |          ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `approx_equals`
[INFO] [stdout]   --> src/vectors/mod.rs:31:10
[INFO] [stdout]    |
[INFO] [stdout] 31 |   pub fn approx_equals(&self, p: Tuple) -> bool {
[INFO] [stdout]    |          ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/world/mod.rs:22:10
[INFO] [stdout]    |
[INFO] [stdout] 22 |   pub fn new(pos: Tuple, vel: Tuple) -> Proj {
[INFO] [stdout]    |          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `wind`
[INFO] [stdout]   --> src/world/mod.rs:29:3
[INFO] [stdout]    |
[INFO] [stdout] 29 |   wind: Tuple, // vector
[INFO] [stdout]    |   ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `grav`
[INFO] [stdout]   --> src/world/mod.rs:30:3
[INFO] [stdout]    |
[INFO] [stdout] 30 |   grav: Tuple, // vector
[INFO] [stdout]    |   ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/world/mod.rs:34:10
[INFO] [stdout]    |
[INFO] [stdout] 34 |   pub fn new(wind: Tuple, grav: Tuple) -> Env {
[INFO] [stdout]    |          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `tick`
[INFO] [stdout]   --> src/world/mod.rs:42:8
[INFO] [stdout]    |
[INFO] [stdout] 42 | pub fn tick(env: Env, proj: Proj) -> Proj {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `default_world`
[INFO] [stdout]   --> src/world/mod.rs:68:10
[INFO] [stdout]    |
[INFO] [stdout] 68 |   pub fn default_world() -> World {
[INFO] [stdout]    |          ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `default_world2`
[INFO] [stdout]   --> src/world/mod.rs:87:10
[INFO] [stdout]    |
[INFO] [stdout] 87 |   pub fn default_world2() -> World {
[INFO] [stdout]    |          ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `negate`
[INFO] [stdout]   --> src/colors/mod.rs:19:10
[INFO] [stdout]    |
[INFO] [stdout] 19 |   pub fn negate(&self) -> Color {
[INFO] [stdout]    |          ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `div`
[INFO] [stdout]   --> src/colors/mod.rs:28:10
[INFO] [stdout]    |
[INFO] [stdout] 28 |   pub fn div(c: Color, a: f64) -> Color {
[INFO] [stdout]    |          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `equals`
[INFO] [stdout]   --> src/colors/mod.rs:31:10
[INFO] [stdout]    |
[INFO] [stdout] 31 |   pub fn equals(a: Color, b: Color) -> bool {
[INFO] [stdout]    |          ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `approx_equals`
[INFO] [stdout]   --> src/colors/mod.rs:34:10
[INFO] [stdout]    |
[INFO] [stdout] 34 |   pub fn approx_equals(a: Color, b: Color) -> bool {
[INFO] [stdout]    |          ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get`
[INFO] [stdout]   --> src/canvas/mod.rs:28:10
[INFO] [stdout]    |
[INFO] [stdout] 28 |   pub fn get(&mut self, x: usize, y: usize) -> Color {
[INFO] [stdout]    |          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `set`
[INFO] [stdout]   --> src/matrix/mod.rs:23:10
[INFO] [stdout]    |
[INFO] [stdout] 23 |   pub fn set(&mut self, r: usize, c: usize, d: f64) {
[INFO] [stdout]    |          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `equals`
[INFO] [stdout]   --> src/matrix/mod.rs:27:10
[INFO] [stdout]    |
[INFO] [stdout] 27 |   pub fn equals(a: &Matrix, b: &Matrix) -> bool {
[INFO] [stdout]    |          ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `approx_equals`
[INFO] [stdout]   --> src/matrix/mod.rs:41:10
[INFO] [stdout]    |
[INFO] [stdout] 41 |   pub fn approx_equals(a: &Matrix, b: &Matrix) -> bool {
[INFO] [stdout]    |          ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `minor`
[INFO] [stdout]    --> src/matrix/mod.rs:140:10
[INFO] [stdout]     |
[INFO] [stdout] 140 |   pub fn minor(a: &Matrix, row: usize, col: usize) -> f64 {
[INFO] [stdout]     |          ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `rotate_z`
[INFO] [stdout]   --> src/transform/mod.rs:83:10
[INFO] [stdout]    |
[INFO] [stdout] 83 |   pub fn rotate_z(&self, rot: f64) -> Transform {
[INFO] [stdout]    |          ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `shear`
[INFO] [stdout]    --> src/transform/mod.rs:108:10
[INFO] [stdout]     |
[INFO] [stdout] 108 |   pub fn shear(&self, xy: f64, xz: f64, yx: f64, yz: f64, zx: f64, zy: f64) -> Transform {
[INFO] [stdout]     |          ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/shape/plane.rs:20:10
[INFO] [stdout]    |
[INFO] [stdout] 20 |   pub fn new() -> Plane {
[INFO] [stdout]    |          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `set_transform`
[INFO] [stdout]   --> src/shape/plane.rs:42:10
[INFO] [stdout]    |
[INFO] [stdout] 42 |   pub fn set_transform(object: &mut Shape, transform: Matrix) {
[INFO] [stdout]    |          ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/shape/sphere.rs:22:10
[INFO] [stdout]    |
[INFO] [stdout] 22 |   pub fn new(origin: Tuple, radius: f64) -> Sphere {
[INFO] [stdout]    |          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `set_transform`
[INFO] [stdout]   --> src/shape/sphere.rs:65:10
[INFO] [stdout]    |
[INFO] [stdout] 65 |   pub fn set_transform(object: &mut Shape, transform: Matrix) {
[INFO] [stdout]    |          ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Test`
[INFO] [stdout]   --> src/shape/mod.rs:18:3
[INFO] [stdout]    |
[INFO] [stdout] 18 |   Test,
[INFO] [stdout]    |   ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `glass_sphere`
[INFO] [stdout]   --> src/shape/mod.rs:42:10
[INFO] [stdout]    |
[INFO] [stdout] 42 |   pub fn glass_sphere() -> Shape {
[INFO] [stdout]    |          ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `set_transform`
[INFO] [stdout]   --> src/shape/mod.rs:61:10
[INFO] [stdout]    |
[INFO] [stdout] 61 |   pub fn set_transform(&mut self, transform: Matrix) {
[INFO] [stdout]    |          ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `fov`
[INFO] [stdout]   --> src/camera/mod.rs:18:3
[INFO] [stdout]    |
[INFO] [stdout] 18 |   fov: f64,
[INFO] [stdout]    |   ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/pattern/checker.rs:15:10
[INFO] [stdout]    |
[INFO] [stdout] 15 |   pub fn new(color1: Color, color2: Color) -> Checker {
[INFO] [stdout]    |          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/pattern/gradient.rs:15:10
[INFO] [stdout]    |
[INFO] [stdout] 15 |   pub fn new(color1: Color, color2: Color) -> Gradient {
[INFO] [stdout]    |          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/pattern/ring.rs:15:10
[INFO] [stdout]    |
[INFO] [stdout] 15 |   pub fn new(color1: Color, color2: Color) -> Ring {
[INFO] [stdout]    |          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/pattern/stripe.rs:15:10
[INFO] [stdout]    |
[INFO] [stdout] 15 |   pub fn new(color1: Color, color2: Color) -> Stripe {
[INFO] [stdout]    |          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Gradient`
[INFO] [stdout]   --> src/pattern/mod.rs:15:3
[INFO] [stdout]    |
[INFO] [stdout] 15 |   Gradient,
[INFO] [stdout]    |   ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Ring`
[INFO] [stdout]   --> src/pattern/mod.rs:16:3
[INFO] [stdout]    |
[INFO] [stdout] 16 |   Ring,
[INFO] [stdout]    |   ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Stripe`
[INFO] [stdout]   --> src/pattern/mod.rs:17:3
[INFO] [stdout]    |
[INFO] [stdout] 17 |   Stripe,
[INFO] [stdout]    |   ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Test`
[INFO] [stdout]   --> src/pattern/mod.rs:18:3
[INFO] [stdout]    |
[INFO] [stdout] 18 |   Test,
[INFO] [stdout]    |   ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `set_transform`
[INFO] [stdout]   --> src/pattern/mod.rs:55:10
[INFO] [stdout]    |
[INFO] [stdout] 55 |   pub fn set_transform(&mut self, transform: Matrix) {
[INFO] [stdout]    |          ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 120 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 39.90s
[INFO] running `Command { std: "docker" "inspect" "6c37461235266edaf3ffd5c6ae8263d35427ec6a9161b063d8c69a02d2ccb5e5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6c37461235266edaf3ffd5c6ae8263d35427ec6a9161b063d8c69a02d2ccb5e5", kill_on_drop: false }`
[INFO] [stdout] 6c37461235266edaf3ffd5c6ae8263d35427ec6a9161b063d8c69a02d2ccb5e5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-115/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-115/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=warn" "-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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ea9279ce4915809ee4e02bcbe03151fcac491d8145db70bcf1b3b430b8ecc202
[INFO] running `Command { std: "docker" "start" "-a" "ea9279ce4915809ee4e02bcbe03151fcac491d8145db70bcf1b3b430b8ecc202", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling ray_tracer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `crate::material::Material`
[INFO] [stdout]  --> src/world/mod.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use crate::material::Material;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::matrix::Matrix`
[INFO] [stdout]  --> src/world/mod.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use crate::matrix::Matrix;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::shape::sphere::Sphere`
[INFO] [stdout]   --> src/world/mod.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use crate::shape::sphere::Sphere;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `canvas::Canvas`
[INFO] [stdout]   --> src/main.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | use canvas::Canvas;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::shape::plane::Plane`
[INFO] [stdout]  --> src/intersections/mod.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::shape::plane::Plane;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::shape::sphere::Sphere`
[INFO] [stdout]  --> src/intersections/mod.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use crate::shape::sphere::Sphere;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ray::Ray`
[INFO] [stdout]   --> src/main.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 20 | use ray::Ray;
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::colors::Color`
[INFO] [stdout]  --> src/shape/mod.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::colors::Color;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `dot`
[INFO] [stdout]  --> src/shape/mod.rs:7:22
[INFO] [stdout]   |
[INFO] [stdout] 7 | use crate::vectors::{dot, point, vector, Tuple};
[INFO] [stdout]   |                      ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::f64`
[INFO] [stdout]  --> src/shape/mod.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use std::f64;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::colors::Color`
[INFO] [stdout]  --> src/shape/plane.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::colors::Color;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::transform::Transform`
[INFO] [stdout]  --> src/shape/plane.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use crate::transform::Transform;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `dot`, `point`
[INFO] [stdout]  --> src/shape/plane.rs:8:22
[INFO] [stdout]   |
[INFO] [stdout] 8 | use crate::vectors::{dot, point, vector, Tuple};
[INFO] [stdout]   |                      ^^^  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::f64`
[INFO] [stdout]   --> src/shape/plane.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use std::f64;
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/shape/plane.rs:30:8
[INFO] [stdout]    |
[INFO] [stdout] 30 |     if (ray.direction.y.abs() < 1e-10) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/light/mod.rs:60:6
[INFO] [stdout]    |
[INFO] [stdout] 60 |   if (is_in_shadow) {
[INFO] [stdout]    |      ^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `lighting`
[INFO] [stdout]   --> src/main.rs:25:13
[INFO] [stdout]    |
[INFO] [stdout] 25 | use light::{lighting, PointLight};
[INFO] [stdout]    |             ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Tuple`
[INFO] [stdout]  --> src/camera/mod.rs:6:37
[INFO] [stdout]   |
[INFO] [stdout] 6 | use crate::vectors::{point, vector, Tuple};
[INFO] [stdout]   |                                     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::thread`
[INFO] [stdout]  --> src/camera/mod.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use std::thread;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `for` iterator expression
[INFO] [stdout]   --> src/camera/mod.rs:90:14
[INFO] [stdout]    |
[INFO] [stdout] 90 |     for y in (0..self.vsize) {
[INFO] [stdout]    |              ^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `for` iterator expression
[INFO] [stdout]   --> src/camera/mod.rs:91:16
[INFO] [stdout]    |
[INFO] [stdout] 91 |       for x in (0..self.hsize) {
[INFO] [stdout]    |                ^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Tuple`
[INFO] [stdout]  --> src/material/mod.rs:5:37
[INFO] [stdout]   |
[INFO] [stdout] 5 | use crate::vectors::{point, vector, Tuple};
[INFO] [stdout]   |                                     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Duration`
[INFO] [stdout]   --> src/main.rs:30:17
[INFO] [stdout]    |
[INFO] [stdout] 30 | use std::time::{Duration, Instant};
[INFO] [stdout]    |                 ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `vector`
[INFO] [stdout]  --> src/pattern/mod.rs:4:29
[INFO] [stdout]   |
[INFO] [stdout] 4 | use crate::vectors::{point, vector, Tuple};
[INFO] [stdout]   |                             ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::matrix::Matrix`
[INFO] [stdout]  --> src/pattern/checker.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::matrix::Matrix;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `ShapeType`, `Shape`
[INFO] [stdout]  --> src/pattern/checker.rs:4:20
[INFO] [stdout]   |
[INFO] [stdout] 4 | use crate::shape::{Shape, ShapeType};
[INFO] [stdout]   |                    ^^^^^  ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `vector`
[INFO] [stdout]  --> src/pattern/checker.rs:5:29
[INFO] [stdout]   |
[INFO] [stdout] 5 | use crate::vectors::{point, vector, Tuple};
[INFO] [stdout]   |                             ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::Transform`
[INFO] [stdout]  --> src/pattern/checker.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use crate::Transform;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::matrix::Matrix`
[INFO] [stdout]  --> src/pattern/gradient.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::matrix::Matrix;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `ShapeType`, `Shape`
[INFO] [stdout]  --> src/pattern/gradient.rs:4:20
[INFO] [stdout]   |
[INFO] [stdout] 4 | use crate::shape::{Shape, ShapeType};
[INFO] [stdout]   |                    ^^^^^  ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `vector`
[INFO] [stdout]  --> src/pattern/gradient.rs:5:29
[INFO] [stdout]   |
[INFO] [stdout] 5 | use crate::vectors::{point, vector, Tuple};
[INFO] [stdout]   |                             ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::Transform`
[INFO] [stdout]  --> src/pattern/gradient.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use crate::Transform;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::matrix::Matrix`
[INFO] [stdout]  --> src/pattern/ring.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::matrix::Matrix;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `ShapeType`, `Shape`
[INFO] [stdout]  --> src/pattern/ring.rs:4:20
[INFO] [stdout]   |
[INFO] [stdout] 4 | use crate::shape::{Shape, ShapeType};
[INFO] [stdout]   |                    ^^^^^  ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `vector`
[INFO] [stdout]  --> src/pattern/ring.rs:5:29
[INFO] [stdout]   |
[INFO] [stdout] 5 | use crate::vectors::{point, vector, Tuple};
[INFO] [stdout]   |                             ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::Transform`
[INFO] [stdout]  --> src/pattern/ring.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use crate::Transform;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::matrix::Matrix`
[INFO] [stdout]  --> src/pattern/stripe.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::matrix::Matrix;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `ShapeType`, `Shape`
[INFO] [stdout]  --> src/pattern/stripe.rs:4:20
[INFO] [stdout]   |
[INFO] [stdout] 4 | use crate::shape::{Shape, ShapeType};
[INFO] [stdout]   |                    ^^^^^  ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `vector`
[INFO] [stdout]  --> src/pattern/stripe.rs:5:29
[INFO] [stdout]   |
[INFO] [stdout] 5 | use crate::vectors::{point, vector, Tuple};
[INFO] [stdout]   |                             ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::Transform`
[INFO] [stdout]  --> src/pattern/stripe.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use crate::Transform;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable statement
[INFO] [stdout]    --> src/world/mod.rs:198:5
[INFO] [stdout]     |
[INFO] [stdout] 196 |     return Color::mult(color, comps.object.material.transparency);
[INFO] [stdout]     |     ------------------------------------------------------------- any code following this expression is unreachable
[INFO] [stdout] 197 | 
[INFO] [stdout] 198 |     return color;
[INFO] [stdout]     |     ^^^^^^^^^^^^^ unreachable statement
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/canvas/mod.rs:42:65
[INFO] [stdout]    |
[INFO] [stdout] 42 |       Err(why) => panic!("couldn't create {}: {}", display, why.description()),
[INFO] [stdout]    |                                                                 ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/canvas/mod.rs:49:67
[INFO] [stdout]    |
[INFO] [stdout] 49 |       Err(why) => panic!("couldn't write to {}: {}", display, why.description()),
[INFO] [stdout]    |                                                                   ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `xs`
[INFO] [stdout]    --> src/world/mod.rs:525:7
[INFO] [stdout]     |
[INFO] [stdout] 525 |   let xs = world.intersect_world(r).intersections;
[INFO] [stdout]     |       ^^ help: if this is intentional, prefix it with an underscore: `_xs`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `hit`
[INFO] [stdout]   --> src/intersections/mod.rs:64:7
[INFO] [stdout]    |
[INFO] [stdout] 64 |   let hit = xs.hit();
[INFO] [stdout]    |       ^^^ help: if this is intentional, prefix it with an underscore: `_hit`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `object`
[INFO] [stdout]   --> src/shape/plane.rs:46:20
[INFO] [stdout]    |
[INFO] [stdout] 46 |   pub fn normal_at(object: &Shape, local_point: Tuple) -> Tuple {
[INFO] [stdout]    |                    ^^^^^^ help: if this is intentional, prefix it with an underscore: `_object`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `local_point`
[INFO] [stdout]   --> src/shape/plane.rs:46:36
[INFO] [stdout]    |
[INFO] [stdout] 46 |   pub fn normal_at(object: &Shape, local_point: Tuple) -> Tuple {
[INFO] [stdout]    |                                    ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_local_point`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `object`
[INFO] [stdout]   --> src/shape/sphere.rs:69:20
[INFO] [stdout]    |
[INFO] [stdout] 69 |   pub fn normal_at(object: &Shape, object_point: Tuple) -> Tuple {
[INFO] [stdout]    |                    ^^^^^^ help: if this is intentional, prefix it with an underscore: `_object`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]    --> src/pattern/stripe.rs:113:7
[INFO] [stdout]     |
[INFO] [stdout] 113 |   let x = Stripe::pattern_at(&pattern, point(-0.1, 0., 0.));
[INFO] [stdout]     |       ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:56:9
[INFO] [stdout]    |
[INFO] [stdout] 56 |     let mut floor_pattern = Pattern::new(
[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: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:72:9
[INFO] [stdout]    |
[INFO] [stdout] 72 |     let mut pattern = Pattern::new(
[INFO] [stdout]    |         ----^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:89:9
[INFO] [stdout]    |
[INFO] [stdout] 89 |     let mut pattern = Pattern::new(
[INFO] [stdout]    |         ----^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/world/mod.rs:320:7
[INFO] [stdout]     |
[INFO] [stdout] 320 |   let mut world = World::default_world2();
[INFO] [stdout]     |       ----^^^^^
[INFO] [stdout]     |       |
[INFO] [stdout]     |       help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/world/mod.rs:330:7
[INFO] [stdout]     |
[INFO] [stdout] 330 |   let mut world = World::default_world();
[INFO] [stdout]     |       ----^^^^^
[INFO] [stdout]     |       |
[INFO] [stdout]     |       help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/world/mod.rs:339:7
[INFO] [stdout]     |
[INFO] [stdout] 339 |   let mut world = World::default_world();
[INFO] [stdout]     |       ----^^^^^
[INFO] [stdout]     |       |
[INFO] [stdout]     |       help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/world/mod.rs:348:7
[INFO] [stdout]     |
[INFO] [stdout] 348 |   let mut world = World::default_world();
[INFO] [stdout]     |       ----^^^^^
[INFO] [stdout]     |       |
[INFO] [stdout]     |       help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/world/mod.rs:357:7
[INFO] [stdout]     |
[INFO] [stdout] 357 |   let mut world = World::default_world();
[INFO] [stdout]     |       ----^^^^^
[INFO] [stdout]     |       |
[INFO] [stdout]     |       help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/world/mod.rs:366:7
[INFO] [stdout]     |
[INFO] [stdout] 366 |   let mut world = World::default_world();
[INFO] [stdout]     |       ----^^^^^
[INFO] [stdout]     |       |
[INFO] [stdout]     |       help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/shape/sphere.rs:253:7
[INFO] [stdout]     |
[INFO] [stdout] 253 |   let mut s = Sphere::new(point(0., 0., 0.), 1.);
[INFO] [stdout]     |       ----^
[INFO] [stdout]     |       |
[INFO] [stdout]     |       help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/light/mod.rs:30:7
[INFO] [stdout]    |
[INFO] [stdout] 30 |   let mut diffuse;
[INFO] [stdout]    |       ----^^^^^^^
[INFO] [stdout]    |       |
[INFO] [stdout]    |       help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/light/mod.rs:31:7
[INFO] [stdout]    |
[INFO] [stdout] 31 |   let mut specular;
[INFO] [stdout]    |       ----^^^^^^^^
[INFO] [stdout]    |       |
[INFO] [stdout]    |       help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/camera/mod.rs:25:9
[INFO] [stdout]    |
[INFO] [stdout] 25 |     let mut half_width;
[INFO] [stdout]    |         ----^^^^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/camera/mod.rs:26:9
[INFO] [stdout]    |
[INFO] [stdout] 26 |     let mut half_height;
[INFO] [stdout]    |         ----^^^^^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/camera/mod.rs:27:9
[INFO] [stdout]    |
[INFO] [stdout] 27 |     let mut half_view = (fov / 2.0).tan();
[INFO] [stdout]    |         ----^^^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/world/mod.rs:22:10
[INFO] [stdout]    |
[INFO] [stdout] 22 |   pub fn new(pos: Tuple, vel: Tuple) -> Proj {
[INFO] [stdout]    |          ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `wind`
[INFO] [stdout]   --> src/world/mod.rs:29:3
[INFO] [stdout]    |
[INFO] [stdout] 29 |   wind: Tuple, // vector
[INFO] [stdout]    |   ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `grav`
[INFO] [stdout]   --> src/world/mod.rs:30:3
[INFO] [stdout]    |
[INFO] [stdout] 30 |   grav: Tuple, // vector
[INFO] [stdout]    |   ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/world/mod.rs:34:10
[INFO] [stdout]    |
[INFO] [stdout] 34 |   pub fn new(wind: Tuple, grav: Tuple) -> Env {
[INFO] [stdout]    |          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `tick`
[INFO] [stdout]   --> src/world/mod.rs:42:8
[INFO] [stdout]    |
[INFO] [stdout] 42 | pub fn tick(env: Env, proj: Proj) -> Proj {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `negate`
[INFO] [stdout]   --> src/colors/mod.rs:19:10
[INFO] [stdout]    |
[INFO] [stdout] 19 |   pub fn negate(&self) -> Color {
[INFO] [stdout]    |          ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `div`
[INFO] [stdout]   --> src/colors/mod.rs:28:10
[INFO] [stdout]    |
[INFO] [stdout] 28 |   pub fn div(c: Color, a: f64) -> Color {
[INFO] [stdout]    |          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `set`
[INFO] [stdout]   --> src/matrix/mod.rs:23:10
[INFO] [stdout]    |
[INFO] [stdout] 23 |   pub fn set(&mut self, r: usize, c: usize, d: f64) {
[INFO] [stdout]    |          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/shape/plane.rs:20:10
[INFO] [stdout]    |
[INFO] [stdout] 20 |   pub fn new() -> Plane {
[INFO] [stdout]    |          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/pattern/checker.rs:15:10
[INFO] [stdout]    |
[INFO] [stdout] 15 |   pub fn new(color1: Color, color2: Color) -> Checker {
[INFO] [stdout]    |          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/pattern/gradient.rs:15:10
[INFO] [stdout]    |
[INFO] [stdout] 15 |   pub fn new(color1: Color, color2: Color) -> Gradient {
[INFO] [stdout]    |          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/pattern/ring.rs:15:10
[INFO] [stdout]    |
[INFO] [stdout] 15 |   pub fn new(color1: Color, color2: Color) -> Ring {
[INFO] [stdout]    |          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/pattern/stripe.rs:15:10
[INFO] [stdout]    |
[INFO] [stdout] 15 |   pub fn new(color1: Color, color2: Color) -> Stripe {
[INFO] [stdout]    |          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 77 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.44s
[INFO] running `Command { std: "docker" "inspect" "ea9279ce4915809ee4e02bcbe03151fcac491d8145db70bcf1b3b430b8ecc202", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ea9279ce4915809ee4e02bcbe03151fcac491d8145db70bcf1b3b430b8ecc202", kill_on_drop: false }`
[INFO] [stdout] ea9279ce4915809ee4e02bcbe03151fcac491d8145db70bcf1b3b430b8ecc202
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-115/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-115/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=warn" "-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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] a6c3a5b9eec714160e36953e9fd3b25bcab10662442a8ab8c52361234063ca5f
[INFO] running `Command { std: "docker" "start" "-a" "a6c3a5b9eec714160e36953e9fd3b25bcab10662442a8ab8c52361234063ca5f", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `crate::material::Material`
[INFO] [stderr]  --> src/world/mod.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use crate::material::Material;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::matrix::Matrix`
[INFO] [stderr]  --> src/world/mod.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use crate::matrix::Matrix;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::shape::sphere::Sphere`
[INFO] [stderr]   --> src/world/mod.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 | use crate::shape::sphere::Sphere;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `canvas::Canvas`
[INFO] [stderr]   --> src/main.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 | use canvas::Canvas;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::shape::plane::Plane`
[INFO] [stderr]  --> src/intersections/mod.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use crate::shape::plane::Plane;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::shape::sphere::Sphere`
[INFO] [stderr]  --> src/intersections/mod.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use crate::shape::sphere::Sphere;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `ray::Ray`
[INFO] [stderr]   --> src/main.rs:20:5
[INFO] [stderr]    |
[INFO] [stderr] 20 | use ray::Ray;
[INFO] [stderr]    |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::colors::Color`
[INFO] [stderr]  --> src/shape/mod.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use crate::colors::Color;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `dot`
[INFO] [stderr]  --> src/shape/mod.rs:7:22
[INFO] [stderr]   |
[INFO] [stderr] 7 | use crate::vectors::{dot, point, vector, Tuple};
[INFO] [stderr]   |                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::f64`
[INFO] [stderr]  --> src/shape/mod.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 | use std::f64;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::colors::Color`
[INFO] [stderr]  --> src/shape/plane.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use crate::colors::Color;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::transform::Transform`
[INFO] [stderr]  --> src/shape/plane.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use crate::transform::Transform;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `dot`, `point`
[INFO] [stderr]  --> src/shape/plane.rs:8:22
[INFO] [stderr]   |
[INFO] [stderr] 8 | use crate::vectors::{dot, point, vector, Tuple};
[INFO] [stderr]   |                      ^^^  ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::f64`
[INFO] [stderr]   --> src/shape/plane.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 | use std::f64;
[INFO] [stderr]    |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `if` condition
[INFO] [stderr]   --> src/shape/plane.rs:30:8
[INFO] [stderr]    |
[INFO] [stderr] 30 |     if (ray.direction.y.abs() < 1e-10) {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `if` condition
[INFO] [stderr]   --> src/light/mod.rs:60:6
[INFO] [stderr]    |
[INFO] [stderr] 60 |   if (is_in_shadow) {
[INFO] [stderr]    |      ^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `lighting`
[INFO] [stderr]   --> src/main.rs:25:13
[INFO] [stderr]    |
[INFO] [stderr] 25 | use light::{lighting, PointLight};
[INFO] [stderr]    |             ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Tuple`
[INFO] [stderr]  --> src/camera/mod.rs:6:37
[INFO] [stderr]   |
[INFO] [stderr] 6 | use crate::vectors::{point, vector, Tuple};
[INFO] [stderr]   |                                     ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::thread`
[INFO] [stderr]  --> src/camera/mod.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 | use std::thread;
[INFO] [stderr]   |     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `for` iterator expression
[INFO] [stderr]   --> src/camera/mod.rs:90:14
[INFO] [stderr]    |
[INFO] [stderr] 90 |     for y in (0..self.vsize) {
[INFO] [stderr]    |              ^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `for` iterator expression
[INFO] [stderr]   --> src/camera/mod.rs:91:16
[INFO] [stderr]    |
[INFO] [stderr] 91 |       for x in (0..self.hsize) {
[INFO] [stderr]    |                ^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Tuple`
[INFO] [stderr]  --> src/material/mod.rs:5:37
[INFO] [stderr]   |
[INFO] [stderr] 5 | use crate::vectors::{point, vector, Tuple};
[INFO] [stderr]   |                                     ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Duration`
[INFO] [stderr]   --> src/main.rs:30:17
[INFO] [stderr]    |
[INFO] [stderr] 30 | use std::time::{Duration, Instant};
[INFO] [stderr]    |                 ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `vector`
[INFO] [stderr]  --> src/pattern/mod.rs:4:29
[INFO] [stderr]   |
[INFO] [stderr] 4 | use crate::vectors::{point, vector, Tuple};
[INFO] [stderr]   |                             ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::matrix::Matrix`
[INFO] [stderr]  --> src/pattern/checker.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use crate::matrix::Matrix;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `ShapeType`, `Shape`
[INFO] [stderr]  --> src/pattern/checker.rs:4:20
[INFO] [stderr]   |
[INFO] [stderr] 4 | use crate::shape::{Shape, ShapeType};
[INFO] [stderr]   |                    ^^^^^  ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `vector`
[INFO] [stderr]  --> src/pattern/checker.rs:5:29
[INFO] [stderr]   |
[INFO] [stderr] 5 | use crate::vectors::{point, vector, Tuple};
[INFO] [stderr]   |                             ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::Transform`
[INFO] [stderr]  --> src/pattern/checker.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use crate::Transform;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::matrix::Matrix`
[INFO] [stderr]  --> src/pattern/gradient.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use crate::matrix::Matrix;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `ShapeType`, `Shape`
[INFO] [stderr]  --> src/pattern/gradient.rs:4:20
[INFO] [stderr]   |
[INFO] [stderr] 4 | use crate::shape::{Shape, ShapeType};
[INFO] [stderr]   |                    ^^^^^  ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `vector`
[INFO] [stderr]  --> src/pattern/gradient.rs:5:29
[INFO] [stderr]   |
[INFO] [stderr] 5 | use crate::vectors::{point, vector, Tuple};
[INFO] [stderr]   |                             ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::Transform`
[INFO] [stderr]  --> src/pattern/gradient.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use crate::Transform;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::matrix::Matrix`
[INFO] [stderr]  --> src/pattern/ring.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use crate::matrix::Matrix;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `ShapeType`, `Shape`
[INFO] [stderr]  --> src/pattern/ring.rs:4:20
[INFO] [stderr]   |
[INFO] [stderr] 4 | use crate::shape::{Shape, ShapeType};
[INFO] [stderr]   |                    ^^^^^  ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `vector`
[INFO] [stderr]  --> src/pattern/ring.rs:5:29
[INFO] [stderr]   |
[INFO] [stderr] 5 | use crate::vectors::{point, vector, Tuple};
[INFO] [stderr]   |                             ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::Transform`
[INFO] [stderr]  --> src/pattern/ring.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use crate::Transform;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::matrix::Matrix`
[INFO] [stderr]  --> src/pattern/stripe.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use crate::matrix::Matrix;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `ShapeType`, `Shape`
[INFO] [stderr]  --> src/pattern/stripe.rs:4:20
[INFO] [stderr]   |
[INFO] [stderr] 4 | use crate::shape::{Shape, ShapeType};
[INFO] [stderr]   |                    ^^^^^  ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `vector`
[INFO] [stderr]  --> src/pattern/stripe.rs:5:29
[INFO] [stderr]   |
[INFO] [stderr] 5 | use crate::vectors::{point, vector, Tuple};
[INFO] [stderr]   |                             ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::Transform`
[INFO] [stderr]  --> src/pattern/stripe.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use crate::Transform;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable statement
[INFO] [stderr]    --> src/world/mod.rs:198:5
[INFO] [stderr]     |
[INFO] [stderr] 196 |     return Color::mult(color, comps.object.material.transparency);
[INFO] [stderr]     |     ------------------------------------------------------------- any code following this expression is unreachable
[INFO] [stderr] 197 | 
[INFO] [stderr] 198 |     return color;
[INFO] [stderr]     |     ^^^^^^^^^^^^^ unreachable statement
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unreachable_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stderr]   --> src/canvas/mod.rs:42:65
[INFO] [stderr]    |
[INFO] [stderr] 42 |       Err(why) => panic!("couldn't create {}: {}", display, why.description()),
[INFO] [stderr]    |                                                                 ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stderr]   --> src/canvas/mod.rs:49:67
[INFO] [stderr]    |
[INFO] [stderr] 49 |       Err(why) => panic!("couldn't write to {}: {}", display, why.description()),
[INFO] [stderr]    |                                                                   ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `xs`
[INFO] [stderr]    --> src/world/mod.rs:525:7
[INFO] [stderr]     |
[INFO] [stderr] 525 |   let xs = world.intersect_world(r).intersections;
[INFO] [stderr]     |       ^^ help: if this is intentional, prefix it with an underscore: `_xs`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `hit`
[INFO] [stderr]   --> src/intersections/mod.rs:64:7
[INFO] [stderr]    |
[INFO] [stderr] 64 |   let hit = xs.hit();
[INFO] [stderr]    |       ^^^ help: if this is intentional, prefix it with an underscore: `_hit`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `object`
[INFO] [stderr]   --> src/shape/plane.rs:46:20
[INFO] [stderr]    |
[INFO] [stderr] 46 |   pub fn normal_at(object: &Shape, local_point: Tuple) -> Tuple {
[INFO] [stderr]    |                    ^^^^^^ help: if this is intentional, prefix it with an underscore: `_object`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `local_point`
[INFO] [stderr]   --> src/shape/plane.rs:46:36
[INFO] [stderr]    |
[INFO] [stderr] 46 |   pub fn normal_at(object: &Shape, local_point: Tuple) -> Tuple {
[INFO] [stderr]    |                                    ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_local_point`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `object`
[INFO] [stderr]   --> src/shape/sphere.rs:69:20
[INFO] [stderr]    |
[INFO] [stderr] 69 |   pub fn normal_at(object: &Shape, object_point: Tuple) -> Tuple {
[INFO] [stderr]    |                    ^^^^^^ help: if this is intentional, prefix it with an underscore: `_object`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `x`
[INFO] [stderr]    --> src/pattern/stripe.rs:113:7
[INFO] [stderr]     |
[INFO] [stderr] 113 |   let x = Stripe::pattern_at(&pattern, point(-0.1, 0., 0.));
[INFO] [stderr]     |       ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:56:9
[INFO] [stderr]    |
[INFO] [stderr] 56 |     let mut floor_pattern = Pattern::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/main.rs:72:9
[INFO] [stderr]    |
[INFO] [stderr] 72 |     let mut pattern = Pattern::new(
[INFO] [stderr]    |         ----^^^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:89:9
[INFO] [stderr]    |
[INFO] [stderr] 89 |     let mut pattern = Pattern::new(
[INFO] [stderr]    |         ----^^^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/world/mod.rs:320:7
[INFO] [stderr]     |
[INFO] [stderr] 320 |   let mut world = World::default_world2();
[INFO] [stderr]     |       ----^^^^^
[INFO] [stderr]     |       |
[INFO] [stderr]     |       help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/world/mod.rs:330:7
[INFO] [stderr]     |
[INFO] [stderr] 330 |   let mut world = World::default_world();
[INFO] [stderr]     |       ----^^^^^
[INFO] [stderr]     |       |
[INFO] [stderr]     |       help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/world/mod.rs:339:7
[INFO] [stderr]     |
[INFO] [stderr] 339 |   let mut world = World::default_world();
[INFO] [stderr]     |       ----^^^^^
[INFO] [stderr]     |       |
[INFO] [stderr]     |       help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/world/mod.rs:348:7
[INFO] [stderr]     |
[INFO] [stderr] 348 |   let mut world = World::default_world();
[INFO] [stderr]     |       ----^^^^^
[INFO] [stderr]     |       |
[INFO] [stderr]     |       help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/world/mod.rs:357:7
[INFO] [stderr]     |
[INFO] [stderr] 357 |   let mut world = World::default_world();
[INFO] [stderr]     |       ----^^^^^
[INFO] [stderr]     |       |
[INFO] [stderr]     |       help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/world/mod.rs:366:7
[INFO] [stderr]     |
[INFO] [stderr] 366 |   let mut world = World::default_world();
[INFO] [stderr]     |       ----^^^^^
[INFO] [stderr]     |       |
[INFO] [stderr]     |       help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/shape/sphere.rs:253:7
[INFO] [stderr]     |
[INFO] [stderr] 253 |   let mut s = Sphere::new(point(0., 0., 0.), 1.);
[INFO] [stderr]     |       ----^
[INFO] [stderr]     |       |
[INFO] [stderr]     |       help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/light/mod.rs:30:7
[INFO] [stderr]    |
[INFO] [stderr] 30 |   let mut diffuse;
[INFO] [stderr]    |       ----^^^^^^^
[INFO] [stderr]    |       |
[INFO] [stderr]    |       help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/light/mod.rs:31:7
[INFO] [stderr]    |
[INFO] [stderr] 31 |   let mut specular;
[INFO] [stderr]    |       ----^^^^^^^^
[INFO] [stderr]    |       |
[INFO] [stderr]    |       help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/camera/mod.rs:25:9
[INFO] [stderr]    |
[INFO] [stderr] 25 |     let mut half_width;
[INFO] [stderr]    |         ----^^^^^^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/camera/mod.rs:26:9
[INFO] [stderr]    |
[INFO] [stderr] 26 |     let mut half_height;
[INFO] [stderr]    |         ----^^^^^^^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/camera/mod.rs:27:9
[INFO] [stderr]    |
[INFO] [stderr] 27 |     let mut half_view = (fov / 2.0).tan();
[INFO] [stderr]    |         ----^^^^^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]   --> src/world/mod.rs:22:10
[INFO] [stderr]    |
[INFO] [stderr] 22 |   pub fn new(pos: Tuple, vel: Tuple) -> Proj {
[INFO] [stderr]    |          ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `wind`
[INFO] [stderr]   --> src/world/mod.rs:29:3
[INFO] [stderr]    |
[INFO] [stderr] 29 |   wind: Tuple, // vector
[INFO] [stderr]    |   ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `grav`
[INFO] [stderr]   --> src/world/mod.rs:30:3
[INFO] [stderr]    |
[INFO] [stderr] 30 |   grav: Tuple, // vector
[INFO] [stderr]    |   ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]   --> src/world/mod.rs:34:10
[INFO] [stderr]    |
[INFO] [stderr] 34 |   pub fn new(wind: Tuple, grav: Tuple) -> Env {
[INFO] [stderr]    |          ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `tick`
[INFO] [stderr]   --> src/world/mod.rs:42:8
[INFO] [stderr]    |
[INFO] [stderr] 42 | pub fn tick(env: Env, proj: Proj) -> Proj {
[INFO] [stderr]    |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `negate`
[INFO] [stderr]   --> src/colors/mod.rs:19:10
[INFO] [stderr]    |
[INFO] [stderr] 19 |   pub fn negate(&self) -> Color {
[INFO] [stderr]    |          ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `div`
[INFO] [stderr]   --> src/colors/mod.rs:28:10
[INFO] [stderr]    |
[INFO] [stderr] 28 |   pub fn div(c: Color, a: f64) -> Color {
[INFO] [stderr]    |          ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `set`
[INFO] [stderr]   --> src/matrix/mod.rs:23:10
[INFO] [stderr]    |
[INFO] [stderr] 23 |   pub fn set(&mut self, r: usize, c: usize, d: f64) {
[INFO] [stderr]    |          ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]   --> src/shape/plane.rs:20:10
[INFO] [stderr]    |
[INFO] [stderr] 20 |   pub fn new() -> Plane {
[INFO] [stderr]    |          ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]   --> src/pattern/checker.rs:15:10
[INFO] [stderr]    |
[INFO] [stderr] 15 |   pub fn new(color1: Color, color2: Color) -> Checker {
[INFO] [stderr]    |          ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]   --> src/pattern/gradient.rs:15:10
[INFO] [stderr]    |
[INFO] [stderr] 15 |   pub fn new(color1: Color, color2: Color) -> Gradient {
[INFO] [stderr]    |          ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]   --> src/pattern/ring.rs:15:10
[INFO] [stderr]    |
[INFO] [stderr] 15 |   pub fn new(color1: Color, color2: Color) -> Ring {
[INFO] [stderr]    |          ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]   --> src/pattern/stripe.rs:15:10
[INFO] [stderr]    |
[INFO] [stderr] 15 |   pub fn new(color1: Color, color2: Color) -> Stripe {
[INFO] [stderr]    |          ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `ray_tracer` (bin "ray_tracer" test) generated 77 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/ray_tracer-a664f1bae8eeddea)
[INFO] [stdout] running 169 tests
[INFO] [stdout] test colors::it_adds_color ... ok
[INFO] [stdout] test colors::it_multiplies_two_colors ... ok
[INFO] [stdout] test colors::it_scales_a_color ... ok
[INFO] [stdout] test colors::it_subs_color ... ok
[INFO] [stdout] test canvas::it_writes_a_pixel ... ok
[INFO] [stdout] test camera::constructing_a_ray_through_corner_of_canvas ... ok
[INFO] [stdout] test camera::pixel_size_for_a_vertical_canvas ... ok
[INFO] [stdout] test camera::constructing_a_camera ... ok
[INFO] [stdout] test camera::pixel_size_for_a_horizontal_canvas ... ok
[INFO] [stdout] test camera::constructing_a_ray_through_center_of_canvas ... ok
[INFO] [stdout] test camera::constructing_a_ray_when_the_camera_is_transformed ... ok
[INFO] [stdout] test intersections::intersection_encapsulates_a_t_and_object ... ok
[INFO] [stdout] test intersections::intersections_aggregate ... ok
[INFO] [stdout] test intersections::intersections_aggregate_2 ... ok
[INFO] [stdout] test intersections::intersections_hit_is_lowest_non_negative ... ok
[INFO] [stdout] test intersections::intersections_hit_when_intersections_are_inside ... ok
[INFO] [stdout] test intersections::intersections_hit_when_all_intersections_are_postive ... ok
[INFO] [stdout] test intersections::intersections_hit_when_intersections_are_negative ... ok
[INFO] [stdout] test intersections::schlick_approximation_under_total_internal_reflection ... ok
[INFO] [stdout] test light::a_point_light_has_position_and_intensity ... ok
[INFO] [stdout] test intersections::precompute_the_reflection_vector ... ok
[INFO] [stdout] test material::create_a_new_material ... ok
[INFO] [stdout] test intersections::precompute_the_state_of_an_intersection ... ok
[INFO] [stdout] test intersections::schlick_approximation_with_small_angle_and_n2_greater_than_n1 ... ok
[INFO] [stdout] test intersections::schlick_approximation_under_a_perpendicular_viewing_angle ... ok
[INFO] [stdout] test matrix::it_calculates_determinant_of_2x2_pt2 ... ok
[INFO] [stdout] test material::lighting_an_applied_pattern ... ok
[INFO] [stdout] test light::lighting_with_eye_between_light_and_surface_eye_at_45 ... ok
[INFO] [stdout] test matrix::it_calculates_determinant_of_3x3 ... ok
[INFO] [stdout] test light::lighting_with_eye_between_light_and_surface_light_at_45 ... ok
[INFO] [stdout] test light::lighting_with_light_behind_surface ... ok
[INFO] [stdout] test matrix::it_calculates_determinant_of_4x4 ... ok
[INFO] [stdout] test matrix::it_checks_for_equality_for_identical_matrices ... ok
[INFO] [stdout] test matrix::it_checks_for_not_equality_for_different_matrices ... ok
[INFO] [stdout] test light::lighting_with_with_the_surface_in_shadow ... ok
[INFO] [stdout] test intersections::the_hit_should_offset_the_point ... ok
[INFO] [stdout] test intersections::the_hit_when_an_intersection_occurs_on_outside ... ok
[INFO] [stdout] test matrix::it_checks_if_invertible ... ok
[INFO] [stdout] test matrix::it_checks_if_not_invertible ... ok
[INFO] [stdout] test matrix::it_creates_a_2x2_matrix ... ok
[INFO] [stdout] test intersections::the_under_point_is_offset_below_the_surface ... ok
[INFO] [stdout] test matrix::it_creates_a_3x3_matrix ... ok
[INFO] [stdout] test light::lighting_with_eye_between_light_and_surface ... ok
[INFO] [stdout] test light::lighting_with_eye_in_path_of_reflection ... ok
[INFO] [stdout] test matrix::it_creates_a_4x4_matrix ... ok
[INFO] [stdout] test matrix::it_gets_cofactor_of_3x3_even ... ok
[INFO] [stdout] test matrix::it_gets_cofactor_of_3x3_odd ... ok
[INFO] [stdout] test intersections::the_hit_when_an_intersection_occurs_on_inside ... ok
[INFO] [stdout] test matrix::it_gets_minor_of_3x3 ... ok
[INFO] [stdout] test matrix::it_multiplies_matrices ... ok
[INFO] [stdout] test matrix::it_inverts_a_matrix ... ok
[INFO] [stdout] test matrix::it_multiplies_matrices_by_tuple ... ok
[INFO] [stdout] test matrix::it_multiplies_matrix_by_identity ... ok
[INFO] [stdout] test matrix::it_returns_submatrix_of_3x3 ... ok
[INFO] [stdout] test matrix::it_transposes_a_matrix ... ok
[INFO] [stdout] test matrix::it_returns_submatrix_of_4x4 ... ok
[INFO] [stdout] test matrix::it_transposes_an_identity_matrix ... ok
[INFO] [stdout] test pattern::checker::checker_should_repeat_in_x ... ok
[INFO] [stdout] test pattern::checker::checker_should_repeat_in_y ... ok
[INFO] [stdout] test pattern::checker::checker_should_repeat_in_z ... ok
[INFO] [stdout] test pattern::gradient::creating_a_gradient ... ok
[INFO] [stdout] test pattern::ring::creating_a_ring ... ok
[INFO] [stdout] test pattern::stripe::a_stripe_pattern_is_constant_in_y ... ok
[INFO] [stdout] test pattern::stripe::a_stripe_pattern_alternates_in_x ... ok
[INFO] [stdout] test pattern::stripe::creating_a_stripe_pattern ... ok
[INFO] [stdout] test pattern::stripe::a_stripe_pattern_is_constant_in_z ... ok
[INFO] [stdout] test ray::it_scales_a_ray ... ok
[INFO] [stdout] test ray::it_translates_a_ray ... ok
[INFO] [stdout] test ray::it_computes_position_over_t ... ok
[INFO] [stdout] test shape::plane::the_normal_of_a_plane_is_constant_everywhere ... ok
[INFO] [stdout] test pattern::pattern_with_an_object_transformation ... ok
[INFO] [stdout] test shape::assigns_a_transformation ... ok
[INFO] [stdout] test pattern::stripes_with_both_object_and_pattern_transformation ... ok
[INFO] [stdout] test pattern::pattern_with_a_pattern_transformation ... ok
[INFO] [stdout] test shape::creates_a_glass_sphere ... ok
[INFO] [stdout] test shape::assigns_a_material ... ok
[INFO] [stdout] test pattern::pattern_with_both_object_and_pattern_transformation ... ok
[INFO] [stdout] test shape::sphere::can_set_transformation ... ok
[INFO] [stdout] test shape::sphere::compute_normal_at_a_non_axial_point ... ok
[INFO] [stdout] test pattern::stripes_with_an_object_transformation ... ok
[INFO] [stdout] test shape::sphere::a_sphere_has_a_default_material ... ok
[INFO] [stdout] test pattern::stripes_with_a_pattern_transformation ... ok
[INFO] [stdout] test shape::sphere::a_sphere_can_change_its_material ... ok
[INFO] [stdout] test shape::finding_n1_and_n2_and_various_intersections ... ok
[INFO] [stdout] test shape::sphere::compute_normal_at_a_point_on_y_axis ... ok
[INFO] [stdout] test shape::sphere::default_transformation_is_identity ... ok
[INFO] [stdout] test shape::sphere::compute_normal_at_a_point_on_x_axis ... ok
[INFO] [stdout] test shape::sphere::intersecting_scaled_sphere_with_a_ray ... ok
[INFO] [stdout] test transform::a_view_transformation_matrix_looking_in_positive_z_direction ... ok
[INFO] [stdout] test shape::sphere::compute_normal_on_a_translated_sphere ... ok
[INFO] [stdout] test transform::it_individual_transforms_work_sequentially ... ok
[INFO] [stdout] test transform::it_rotates_a_point_around_y_axis ... ok
[INFO] [stdout] test transform::it_rotates_a_point_around_x_axis_opposite_direction ... ok
[INFO] [stdout] test transform::it_chains_transformations_in_reverse_order ... ok
[INFO] [stdout] test shape::sphere::compute_normal_at_a_point_on_z_axis ... ok
[INFO] [stdout] test shape::sphere::it_computes_intersects_3 ... ok
[INFO] [stdout] test transform::an_arbitrary_view_transformation ... ok
[INFO] [stdout] test transform::it_rotates_a_point_around_z_axis ... ok
[INFO] [stdout] test transform::it_rotates_a_point_around_x_axis ... ok
[INFO] [stdout] test shape::sphere::it_computes_intersects_1 ... ok
[INFO] [stdout] test transform::it_scales_point ... ok
[INFO] [stdout] test shape::sphere::intersecting_translated_sphere_with_a_ray ... ok
[INFO] [stdout] test shape::sphere::compute_normal_on_a_transformed_sphere ... ok
[INFO] [stdout] test transform::it_scales_inverse_vector ... ok
[INFO] [stdout] test transform::it_scales_reflects ... ok
[INFO] [stdout] test shape::sphere::it_computes_intersects_5 ... ok
[INFO] [stdout] test transform::it_shears_along_y_in_proportion_to_x ... ok
[INFO] [stdout] test transform::it_scales_vector ... ok
[INFO] [stdout] test transform::it_shears_along_x_in_proportion_to_y ... ok
[INFO] [stdout] test transform::it_shears_along_x_in_proportion_to_z ... ok
[INFO] [stdout] test shape::sphere::it_computes_intersects_2 ... ok
[INFO] [stdout] test transform::it_shears_along_z_in_proportion_to_x ... ok
[INFO] [stdout] test transform::it_shears_along_y_in_proportion_to_z ... ok
[INFO] [stdout] test shape::sphere::it_computes_intersects_4 ... ok
[INFO] [stdout] test shape::sphere::the_normal_is_a_normalized_vector ... ok
[INFO] [stdout] test transform::it_translates ... ok
[INFO] [stdout] test transform::it_shears_along_z_in_proportion_to_y ... ok
[INFO] [stdout] test transform::it_translates_inverse ... ok
[INFO] [stdout] test transform::the_view_transformation_matrix_moves_the_world ... ok
[INFO] [stdout] test shape::the_default_transformation ... ok
[INFO] [stdout] test transform::it_translates_inverse_vector ... ok
[INFO] [stdout] test vectors::it_adds_two_tuples ... ok
[INFO] [stdout] test vectors::it_computes_cross_product ... ok
[INFO] [stdout] test transform::the_transformation_matrix_for_the_default_orientation ... ok
[INFO] [stdout] test vectors::it_computes_dot_product ... ok
[INFO] [stdout] test vectors::it_creates_a_point ... ok
[INFO] [stdout] test vectors::it_creates_a_tuple_where_w_0_is_a_vector ... ok
[INFO] [stdout] test vectors::it_creates_a_vector ... ok
[INFO] [stdout] test vectors::it_divides_a_tuple ... ok
[INFO] [stdout] test vectors::it_negates_a_tuple ... ok
[INFO] [stdout] test vectors::it_scales_a_tuple ... ok
[INFO] [stdout] test vectors::it_subtracts_a_vector_from_a_point ... ok
[INFO] [stdout] test vectors::it_subtracts_a_vector_from_zero_vector ... ok
[INFO] [stdout] test vectors::it_subtracts_two_tuples ... ok
[INFO] [stdout] test vectors::magnitude_of_normalized_vector ... ok
[INFO] [stdout] test vectors::normalizes_vector_1_2_3 ... ok
[INFO] [stdout] test vectors::normalizes_vector_4_0_0 ... ok
[INFO] [stdout] test vectors::reflect_a_45_deg_vector ... ok
[INFO] [stdout] test vectors::reflect_a_45_deg_vector_rotated ... ok
[INFO] [stdout] test vectors::vector_0_0_1_magnitude_is_1 ... ok
[INFO] [stdout] test vectors::vector_0_1_0_magnitude_is_1 ... ok
[INFO] [stdout] test vectors::vector_1_2_3_magnitude_is_root_14 ... ok
[INFO] [stdout] test vectors::vector_minus1_minus2_minus3_magnitude_is_root_14 ... ok
[INFO] [stdout] test world::new_world_contains_no_light_or_objects ... ok
[INFO] [stdout] test world::refracted_color_of_an_opaque_surface ... ok
[INFO] [stdout] test world::ray_along_z_axis_intersects_default_world ... ok
[INFO] [stdout] test world::the_reflected_color_at_maximum_recursion_depth ... ok
[INFO] [stdout] test world::the_color_with_an_intersection_from_behind ... ok
[INFO] [stdout] test world::shading_an_intersection ... ok
[INFO] [stdout] test world::refracted_color_at_maximum_recursion_depth ... ok
[INFO] [stdout] test world::shade_hit_of_a_reflective_material ... ok
[INFO] [stdout] test world::refracted_color_at_total_internal_reflection ... ok
[INFO] [stdout] test world::color_at_with_mutually_reflective_surfaces ... ok
[INFO] [stdout] test world::shading_an_intersection_from_inside ... ok
[INFO] [stdout] test world::default_world_contains_some_light_or_objects ... ok
[INFO] [stdout] test world::there_is_a_shadow_when_an_object_is_between_the_point_and_the_light ... ok
[INFO] [stdout] test world::the_color_when_a_ray_hits ... ok
[INFO] [stdout] test world::the_color_when_a_ray_misses ... ok
[INFO] [stdout] test world::refracted_color_with_a_refracted_ray ... ok
[INFO] [stdout] test world::the_reflected_color_of_a_non_reflective_material ... ok
[INFO] [stdout] test world::there_is_no_shadow_when_nothing_is_collinear_with_point_and_light ... ok
[INFO] [stdout] test world::there_is_no_shadow_when_an_object_is_behind_the_light ... ok
[INFO] [stdout] test world::shade_hit_with_a_transparent_material ... ok
[INFO] [stdout] test world::the_reflected_color_of_a_reflective_material ... ok
[INFO] [stdout] test world::there_is_no_shadow_when_an_object_is_behind_the_point ... ok
[INFO] [stdout] test world::shade_hit_with_a_reflective_and_transparent_material ... ok
[INFO] [stdout] test canvas::it_creates_a_canvas ... FAILED
[INFO] [stdout] test canvas::it_writes_to_ppm ... FAILED
[INFO] [stderr] error: test failed, to rerun pass '--bin ray_tracer'
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/deps/ray_tracer-a664f1bae8eeddea` (signal: 11, SIGSEGV: invalid memory reference)
[INFO] running `Command { std: "docker" "inspect" "a6c3a5b9eec714160e36953e9fd3b25bcab10662442a8ab8c52361234063ca5f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a6c3a5b9eec714160e36953e9fd3b25bcab10662442a8ab8c52361234063ca5f", kill_on_drop: false }`
[INFO] [stdout] a6c3a5b9eec714160e36953e9fd3b25bcab10662442a8ab8c52361234063ca5f
