[INFO] cloning repository https://github.com/celialewis3/rust_raytracer
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/celialewis3/rust_raytracer" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcelialewis3%2Frust_raytracer", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcelialewis3%2Frust_raytracer'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] bdfa683ebf44dfaddebb0a0190447fc0e8a10dd6
[INFO] testing celialewis3/rust_raytracer against try#ecabaf78506b7a4668d42dc20268c086b93f0fad for pr-87041
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcelialewis3%2Frust_raytracer" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/celialewis3/rust_raytracer on toolchain ecabaf78506b7a4668d42dc20268c086b93f0fad
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/celialewis3/rust_raytracer
[INFO] finished tweaking git repo https://github.com/celialewis3/rust_raytracer
[INFO] tweaked toml for git repo https://github.com/celialewis3/rust_raytracer written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/celialewis3/rust_raytracer already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b814dfd28a6f9b0fa638c206fd872975aed2396cdc1e3a0de577339e1a0e7a21
[INFO] running `Command { std: "docker" "start" "-a" "b814dfd28a6f9b0fa638c206fd872975aed2396cdc1e3a0de577339e1a0e7a21", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b814dfd28a6f9b0fa638c206fd872975aed2396cdc1e3a0de577339e1a0e7a21", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b814dfd28a6f9b0fa638c206fd872975aed2396cdc1e3a0de577339e1a0e7a21", kill_on_drop: false }`
[INFO] [stdout] b814dfd28a6f9b0fa638c206fd872975aed2396cdc1e3a0de577339e1a0e7a21
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5429d4ddd87a3dc202803202fa5b21ea79700b86579fbe6e36d494db1e4c4d5f
[INFO] running `Command { std: "docker" "start" "-a" "5429d4ddd87a3dc202803202fa5b21ea79700b86579fbe6e36d494db1e4c4d5f", kill_on_drop: false }`
[INFO] [stderr]    Compiling raytracer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::ops::*`
[INFO] [stdout]  --> src/ray.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::ops::*;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `unit_direction`
[INFO] [stdout]   --> src/main.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 10 |     let unit_direction: Vec3 = Vec3::unit_vector(&r.direction());
[INFO] [stdout]    |         ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_unit_direction`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/vec3.rs:10:12
[INFO] [stdout]    |
[INFO] [stdout] 10 |     pub fn new(e0: f32, e1: f32, e2: f32) -> Vec3 {
[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: `length_squared`
[INFO] [stdout]   --> src/vec3.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout] 16 |     pub fn length_squared(self) -> f32 {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `length`
[INFO] [stdout]   --> src/vec3.rs:21:12
[INFO] [stdout]    |
[INFO] [stdout] 21 |     pub fn length(self) -> f32 {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `unit_vector`
[INFO] [stdout]   --> src/vec3.rs:25:12
[INFO] [stdout]    |
[INFO] [stdout] 25 |     pub fn unit_vector(v: &Vec3) -> Vec3 {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `x`
[INFO] [stdout]   --> src/vec3.rs:29:12
[INFO] [stdout]    |
[INFO] [stdout] 29 |     pub fn x(&self) -> f32 {
[INFO] [stdout]    |            ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `y`
[INFO] [stdout]   --> src/vec3.rs:33:12
[INFO] [stdout]    |
[INFO] [stdout] 33 |     pub fn y(&self) -> f32 {
[INFO] [stdout]    |            ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `z`
[INFO] [stdout]   --> src/vec3.rs:37:12
[INFO] [stdout]    |
[INFO] [stdout] 37 |     pub fn z(&self) -> f32 {
[INFO] [stdout]    |            ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `ray`
[INFO] [stdout]   --> src/ray.rs:13:12
[INFO] [stdout]    |
[INFO] [stdout] 13 |     pub fn ray(origin: Vec3, direction: Vec3) -> Ray {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `origin`
[INFO] [stdout]   --> src/ray.rs:17:12
[INFO] [stdout]    |
[INFO] [stdout] 17 |     pub fn origin(self) -> Vec3 {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `direction`
[INFO] [stdout]   --> src/ray.rs:21:12
[INFO] [stdout]    |
[INFO] [stdout] 21 |     pub fn direction(self) -> Vec3 {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `point_at`
[INFO] [stdout]   --> src/ray.rs:25:12
[INFO] [stdout]    |
[INFO] [stdout] 25 |     pub fn point_at(self, t: f32) -> Vec3 {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `color`
[INFO] [stdout]  --> src/main.rs:9:4
[INFO] [stdout]   |
[INFO] [stdout] 9 | fn color(r: &Ray) {
[INFO] [stdout]   |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 14 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.62s
[INFO] running `Command { std: "docker" "inspect" "5429d4ddd87a3dc202803202fa5b21ea79700b86579fbe6e36d494db1e4c4d5f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5429d4ddd87a3dc202803202fa5b21ea79700b86579fbe6e36d494db1e4c4d5f", kill_on_drop: false }`
[INFO] [stdout] 5429d4ddd87a3dc202803202fa5b21ea79700b86579fbe6e36d494db1e4c4d5f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6666f2c97fc1c57d782e78cc56aec6ec2d8eba526febd4607e8199e2b2a288a3
[INFO] running `Command { std: "docker" "start" "-a" "6666f2c97fc1c57d782e78cc56aec6ec2d8eba526febd4607e8199e2b2a288a3", kill_on_drop: false }`
[INFO] [stderr]    Compiling raytracer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::ops::*`
[INFO] [stdout]  --> src/ray.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::ops::*;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::*`
[INFO] [stdout]   --> src/ray.rs:34:9
[INFO] [stdout]    |
[INFO] [stdout] 34 |     use super::*;
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `unit_direction`
[INFO] [stdout]   --> src/main.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 10 |     let unit_direction: Vec3 = Vec3::unit_vector(&r.direction());
[INFO] [stdout]    |         ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_unit_direction`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `length_squared`
[INFO] [stdout]   --> src/vec3.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout] 16 |     pub fn length_squared(self) -> f32 {
[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: `length`
[INFO] [stdout]   --> src/vec3.rs:21:12
[INFO] [stdout]    |
[INFO] [stdout] 21 |     pub fn length(self) -> f32 {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `unit_vector`
[INFO] [stdout]   --> src/vec3.rs:25:12
[INFO] [stdout]    |
[INFO] [stdout] 25 |     pub fn unit_vector(v: &Vec3) -> Vec3 {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `x`
[INFO] [stdout]   --> src/vec3.rs:29:12
[INFO] [stdout]    |
[INFO] [stdout] 29 |     pub fn x(&self) -> f32 {
[INFO] [stdout]    |            ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `y`
[INFO] [stdout]   --> src/vec3.rs:33:12
[INFO] [stdout]    |
[INFO] [stdout] 33 |     pub fn y(&self) -> f32 {
[INFO] [stdout]    |            ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `z`
[INFO] [stdout]   --> src/vec3.rs:37:12
[INFO] [stdout]    |
[INFO] [stdout] 37 |     pub fn z(&self) -> f32 {
[INFO] [stdout]    |            ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `ray`
[INFO] [stdout]   --> src/ray.rs:13:12
[INFO] [stdout]    |
[INFO] [stdout] 13 |     pub fn ray(origin: Vec3, direction: Vec3) -> Ray {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `origin`
[INFO] [stdout]   --> src/ray.rs:17:12
[INFO] [stdout]    |
[INFO] [stdout] 17 |     pub fn origin(self) -> Vec3 {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `direction`
[INFO] [stdout]   --> src/ray.rs:21:12
[INFO] [stdout]    |
[INFO] [stdout] 21 |     pub fn direction(self) -> Vec3 {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `point_at`
[INFO] [stdout]   --> src/ray.rs:25:12
[INFO] [stdout]    |
[INFO] [stdout] 25 |     pub fn point_at(self, t: f32) -> Vec3 {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `color`
[INFO] [stdout]  --> src/main.rs:9:4
[INFO] [stdout]   |
[INFO] [stdout] 9 | fn color(r: &Ray) {
[INFO] [stdout]   |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 14 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.79s
[INFO] running `Command { std: "docker" "inspect" "6666f2c97fc1c57d782e78cc56aec6ec2d8eba526febd4607e8199e2b2a288a3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6666f2c97fc1c57d782e78cc56aec6ec2d8eba526febd4607e8199e2b2a288a3", kill_on_drop: false }`
[INFO] [stdout] 6666f2c97fc1c57d782e78cc56aec6ec2d8eba526febd4607e8199e2b2a288a3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 71baeae50976542977279bec6eadef36257448723eda870aa4e27e3b40fc888e
[INFO] running `Command { std: "docker" "start" "-a" "71baeae50976542977279bec6eadef36257448723eda870aa4e27e3b40fc888e", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `std::ops::*`
[INFO] [stderr]  --> src/ray.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::ops::*;
[INFO] [stderr]   |     ^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `super::*`
[INFO] [stderr]   --> src/ray.rs:34:9
[INFO] [stderr]    |
[INFO] [stderr] 34 |     use super::*;
[INFO] [stderr]    |         ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `unit_direction`
[INFO] [stderr]   --> src/main.rs:10:9
[INFO] [stderr]    |
[INFO] [stderr] 10 |     let unit_direction: Vec3 = Vec3::unit_vector(&r.direction());
[INFO] [stderr]    |         ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_unit_direction`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `length_squared`
[INFO] [stderr]   --> src/vec3.rs:16:12
[INFO] [stderr]    |
[INFO] [stderr] 16 |     pub fn length_squared(self) -> f32 {
[INFO] [stderr]    |            ^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `length`
[INFO] [stderr]   --> src/vec3.rs:21:12
[INFO] [stderr]    |
[INFO] [stderr] 21 |     pub fn length(self) -> f32 {
[INFO] [stderr]    |            ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `unit_vector`
[INFO] [stderr]   --> src/vec3.rs:25:12
[INFO] [stderr]    |
[INFO] [stderr] 25 |     pub fn unit_vector(v: &Vec3) -> Vec3 {
[INFO] [stderr]    |            ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `x`
[INFO] [stderr]   --> src/vec3.rs:29:12
[INFO] [stderr]    |
[INFO] [stderr] 29 |     pub fn x(&self) -> f32 {
[INFO] [stderr]    |            ^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `y`
[INFO] [stderr]   --> src/vec3.rs:33:12
[INFO] [stderr]    |
[INFO] [stderr] 33 |     pub fn y(&self) -> f32 {
[INFO] [stderr]    |            ^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `z`
[INFO] [stderr]   --> src/vec3.rs:37:12
[INFO] [stderr]    |
[INFO] [stderr] 37 |     pub fn z(&self) -> f32 {
[INFO] [stderr]    |            ^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `ray`
[INFO] [stderr]   --> src/ray.rs:13:12
[INFO] [stderr]    |
[INFO] [stderr] 13 |     pub fn ray(origin: Vec3, direction: Vec3) -> Ray {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `origin`
[INFO] [stderr]   --> src/ray.rs:17:12
[INFO] [stderr]    |
[INFO] [stderr] 17 |     pub fn origin(self) -> Vec3 {
[INFO] [stderr]    |            ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `direction`
[INFO] [stderr]   --> src/ray.rs:21:12
[INFO] [stderr]    |
[INFO] [stderr] 21 |     pub fn direction(self) -> Vec3 {
[INFO] [stderr]    |            ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `point_at`
[INFO] [stderr]   --> src/ray.rs:25:12
[INFO] [stderr]    |
[INFO] [stderr] 25 |     pub fn point_at(self, t: f32) -> Vec3 {
[INFO] [stderr]    |            ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `color`
[INFO] [stderr]  --> src/main.rs:9:4
[INFO] [stderr]   |
[INFO] [stderr] 9 | fn color(r: &Ray) {
[INFO] [stderr]   |    ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 14 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/raytracer-5c78e7644e992d71)
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test vec3::tests::test_ray_point_at_parameter ... ok
[INFO] [stdout] test vec3::tests::test_vec_add ... ok
[INFO] [stdout] test ray::tests::test_ray_point_at_parameter ... ok
[INFO] [stdout] test ray::tests::test_ray_origin ... ok
[INFO] [stdout] test vec3::tests::test_vec_divide ... ok
[INFO] [stdout] test ray::tests::test_ray_direction ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "71baeae50976542977279bec6eadef36257448723eda870aa4e27e3b40fc888e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "71baeae50976542977279bec6eadef36257448723eda870aa4e27e3b40fc888e", kill_on_drop: false }`
[INFO] [stdout] 71baeae50976542977279bec6eadef36257448723eda870aa4e27e3b40fc888e