[INFO] cloning repository https://github.com/lemiesz/RayTracing
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/lemiesz/RayTracing" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flemiesz%2FRayTracing", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flemiesz%2FRayTracing'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0eda2e423963ae40ddb9d9d8bb3aa9d248201d96
[INFO] testing lemiesz/RayTracing against beta-2022-04-10 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flemiesz%2FRayTracing" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/lemiesz/RayTracing on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/lemiesz/RayTracing
[INFO] finished tweaking git repo https://github.com/lemiesz/RayTracing
[INFO] tweaked toml for git repo https://github.com/lemiesz/RayTracing written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/lemiesz/RayTracing already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 23b53d8a9657f30f6ca48216734889c36182926532171113ceed9e42eb330a0b
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "23b53d8a9657f30f6ca48216734889c36182926532171113ceed9e42eb330a0b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "23b53d8a9657f30f6ca48216734889c36182926532171113ceed9e42eb330a0b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "23b53d8a9657f30f6ca48216734889c36182926532171113ceed9e42eb330a0b", kill_on_drop: false }`
[INFO] [stdout] 23b53d8a9657f30f6ca48216734889c36182926532171113ceed9e42eb330a0b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] bf7aa1b8bd716c4ffa05e5c403870b86c2fce59c041d0abf1ba6d3455a189205
[INFO] running `Command { std: "docker" "start" "-a" "bf7aa1b8bd716c4ffa05e5c403870b86c2fce59c041d0abf1ba6d3455a189205", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.86
[INFO] [stderr]    Compiling weezl v0.1.4
[INFO] [stderr]    Compiling bytemuck v1.5.1
[INFO] [stderr]    Compiling crossbeam-utils v0.8.2
[INFO] [stderr]    Compiling deflate v0.8.6
[INFO] [stderr]    Compiling png v0.16.8
[INFO] [stderr]    Compiling gif v0.11.1
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.2
[INFO] [stderr]    Compiling crossbeam-channel v0.5.0
[INFO] [stderr]    Compiling crossbeam-deque v0.8.0
[INFO] [stderr]    Compiling rayon-core v1.9.0
[INFO] [stderr]    Compiling rayon v1.5.0
[INFO] [stderr]    Compiling jpeg-decoder v0.1.22
[INFO] [stderr]    Compiling tiff v0.6.1
[INFO] [stderr]    Compiling image v0.23.13
[INFO] [stderr]    Compiling app v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `HitRecord`
[INFO] [stdout]  --> src/main.rs:4:11
[INFO] [stdout]   |
[INFO] [stdout] 4 | use hit::{HitRecord, Hittable, HittableList, Sphere};
[INFO] [stdout]   |           ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `borrow::Borrow`
[INFO] [stdout]  --> src/main.rs:9:11
[INFO] [stdout]   |
[INFO] [stdout] 9 | use std::{borrow::Borrow, fs::File, rc::Rc};
[INFO] [stdout]   |           ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Rgb`, `io::Reader as ImageReader`
[INFO] [stdout]   --> src/main.rs:11:13
[INFO] [stdout]    |
[INFO] [stdout] 11 | use image::{io::Reader as ImageReader, ImageBuffer, Rgb};
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `hit_anything` is assigned to, but never used
[INFO] [stdout]   --> src/hit.rs:99:17
[INFO] [stdout]    |
[INFO] [stdout] 99 |         let mut hit_anything: bool = false;
[INFO] [stdout]    |                 ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout]    = note: consider using `_hit_anything` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `hit_anything` is never read
[INFO] [stdout]    --> src/hit.rs:108:21
[INFO] [stdout]     |
[INFO] [stdout] 108 |                     hit_anything = true;
[INFO] [stdout]     |                     ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `PI`
[INFO] [stdout]   --> src/main.rs:14:1
[INFO] [stdout]    |
[INFO] [stdout] 14 | const PI: f32 = 3.1415926535897932385;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `degrees_to_radians`
[INFO] [stdout]   --> src/main.rs:16:4
[INFO] [stdout]    |
[INFO] [stdout] 16 | fn degrees_to_radians(degrees: f32) -> f32 {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `write_color_old`
[INFO] [stdout]   --> src/main.rs:35:4
[INFO] [stdout]    |
[INFO] [stdout] 35 | fn write_color_old(s: Vec3) {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `create_gradient`
[INFO] [stdout]   --> src/main.rs:56:4
[INFO] [stdout]    |
[INFO] [stdout] 56 | fn create_gradient() {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `hit_sphere`
[INFO] [stdout]    --> src/main.rs:140:4
[INFO] [stdout]     |
[INFO] [stdout] 140 | fn hit_sphere(center: Point3, radius: f32, ray: &Ray) -> f32 {
[INFO] [stdout]     |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated constant is never used: `DEFAULT`
[INFO] [stdout]   --> src/hit.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | /     pub const DEFAULT: HitRecord = HitRecord {
[INFO] [stdout] 13 | |         front_face: false,
[INFO] [stdout] 14 | |         p: Vec3::ZERO,
[INFO] [stdout] 15 | |         t: 0.0,
[INFO] [stdout] 16 | |         normal: Vec3::ONE,
[INFO] [stdout] 17 | |     };
[INFO] [stdout]    | |______^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 11 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 47.90s
[INFO] running `Command { std: "docker" "inspect" "bf7aa1b8bd716c4ffa05e5c403870b86c2fce59c041d0abf1ba6d3455a189205", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bf7aa1b8bd716c4ffa05e5c403870b86c2fce59c041d0abf1ba6d3455a189205", kill_on_drop: false }`
[INFO] [stdout] bf7aa1b8bd716c4ffa05e5c403870b86c2fce59c041d0abf1ba6d3455a189205
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 60f254b34e1b9bcf1db3a4e491abc3dd8e2cd322261861e92d21ee708c91c8c1
[INFO] running `Command { std: "docker" "start" "-a" "60f254b34e1b9bcf1db3a4e491abc3dd8e2cd322261861e92d21ee708c91c8c1", kill_on_drop: false }`
[INFO] [stderr]    Compiling app v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `HitRecord`
[INFO] [stdout]  --> src/main.rs:4:11
[INFO] [stdout]   |
[INFO] [stdout] 4 | use hit::{HitRecord, Hittable, HittableList, Sphere};
[INFO] [stdout]   |           ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `borrow::Borrow`
[INFO] [stdout]  --> src/main.rs:9:11
[INFO] [stdout]   |
[INFO] [stdout] 9 | use std::{borrow::Borrow, fs::File, rc::Rc};
[INFO] [stdout]   |           ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Rgb`, `io::Reader as ImageReader`
[INFO] [stdout]   --> src/main.rs:11:13
[INFO] [stdout]    |
[INFO] [stdout] 11 | use image::{io::Reader as ImageReader, ImageBuffer, Rgb};
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `hit_anything` is assigned to, but never used
[INFO] [stdout]   --> src/hit.rs:99:17
[INFO] [stdout]    |
[INFO] [stdout] 99 |         let mut hit_anything: bool = false;
[INFO] [stdout]    |                 ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout]    = note: consider using `_hit_anything` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `hit_anything` is never read
[INFO] [stdout]    --> src/hit.rs:108:21
[INFO] [stdout]     |
[INFO] [stdout] 108 |                     hit_anything = true;
[INFO] [stdout]     |                     ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/vec3/vec3.rs:492:13
[INFO] [stdout]     |
[INFO] [stdout] 492 |         let mut a = Vec3::new(3.0, 2.0, 1.0);
[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: constant is never used: `PI`
[INFO] [stdout]   --> src/main.rs:14:1
[INFO] [stdout]    |
[INFO] [stdout] 14 | const PI: f32 = 3.1415926535897932385;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `degrees_to_radians`
[INFO] [stdout]   --> src/main.rs:16:4
[INFO] [stdout]    |
[INFO] [stdout] 16 | fn degrees_to_radians(degrees: f32) -> f32 {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `write_color_old`
[INFO] [stdout]   --> src/main.rs:35:4
[INFO] [stdout]    |
[INFO] [stdout] 35 | fn write_color_old(s: Vec3) {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `create_gradient`
[INFO] [stdout]   --> src/main.rs:56:4
[INFO] [stdout]    |
[INFO] [stdout] 56 | fn create_gradient() {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `hit_sphere`
[INFO] [stdout]    --> src/main.rs:140:4
[INFO] [stdout]     |
[INFO] [stdout] 140 | fn hit_sphere(center: Point3, radius: f32, ray: &Ray) -> f32 {
[INFO] [stdout]     |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated constant is never used: `DEFAULT`
[INFO] [stdout]   --> src/hit.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | /     pub const DEFAULT: HitRecord = HitRecord {
[INFO] [stdout] 13 | |         front_face: false,
[INFO] [stdout] 14 | |         p: Vec3::ZERO,
[INFO] [stdout] 15 | |         t: 0.0,
[INFO] [stdout] 16 | |         normal: Vec3::ONE,
[INFO] [stdout] 17 | |     };
[INFO] [stdout]    | |______^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 12 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.18s
[INFO] [stderr]   Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/app-374c85474ed0098e)
[INFO] running `Command { std: "docker" "inspect" "60f254b34e1b9bcf1db3a4e491abc3dd8e2cd322261861e92d21ee708c91c8c1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "60f254b34e1b9bcf1db3a4e491abc3dd8e2cd322261861e92d21ee708c91c8c1", kill_on_drop: false }`
[INFO] [stdout] 60f254b34e1b9bcf1db3a4e491abc3dd8e2cd322261861e92d21ee708c91c8c1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 78111376a22860edbcded6b46c5e9ec68db6ad8a104dd662ae52e5eaace3dd54
[INFO] running `Command { std: "docker" "start" "-a" "78111376a22860edbcded6b46c5e9ec68db6ad8a104dd662ae52e5eaace3dd54", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `HitRecord`
[INFO] [stdout] 
[INFO] [stderr]  --> src/main.rs:4:11
[INFO] [stdout] running 15 tests
[INFO] [stderr]   |
[INFO] [stdout] test ray::tests::at_scales ... ok
[INFO] [stderr] 4 | use hit::{HitRecord, Hittable, HittableList, Sphere};
[INFO] [stdout] test ray::tests::test ... ok
[INFO] [stderr]   |           ^^^^^^^^^
[INFO] [stdout] test vec3::vec3::tests::component ... ok
[INFO] [stderr]   |
[INFO] [stdout] test vec3::vec3::tests::cross ... ok
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] test vec3::vec3::tests::divide ... ok
[INFO] [stderr] 
[INFO] [stdout] test vec3::vec3::tests::length ... ok
[INFO] [stderr] warning: unused import: `borrow::Borrow`
[INFO] [stdout] test vec3::vec3::tests::max ... ok
[INFO] [stderr]  --> src/main.rs:9:11
[INFO] [stdout] test vec3::vec3::tests::min ... ok
[INFO] [stderr]   |
[INFO] [stdout] test vec3::vec3::tests::dot ... ok
[INFO] [stderr] 9 | use std::{borrow::Borrow, fs::File, rc::Rc};
[INFO] [stdout] test vec3::vec3::tests::multiply ... ok
[INFO] [stderr]   |           ^^^^^^^^^^^^^^
[INFO] [stdout] test vec3::vec3::tests::with_component ... ok
[INFO] [stderr] 
[INFO] [stdout] test vec3::vec3::tests::add ... ok
[INFO] [stderr] warning: unused imports: `Rgb`, `io::Reader as ImageReader`
[INFO] [stderr]   --> src/main.rs:11:13
[INFO] [stderr]    |
[INFO] [stderr] 11 | use image::{io::Reader as ImageReader, ImageBuffer, Rgb};
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^               ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable `hit_anything` is assigned to, but never used
[INFO] [stderr]   --> src/hit.rs:99:17
[INFO] [stderr]    |
[INFO] [stderr] 99 |         let mut hit_anything: bool = false;
[INFO] [stderr]    |                 ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr]    = note: consider using `_hit_anything` instead
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `hit_anything` is never read
[INFO] [stderr]    --> src/hit.rs:108:21
[INFO] [stderr]     |
[INFO] [stderr] 108 |                     hit_anything = true;
[INFO] [stderr]     |                     ^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/vec3/vec3.rs:492:13
[INFO] [stderr]     |
[INFO] [stderr] 492 |         let mut a = Vec3::new(3.0, 2.0, 1.0);
[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: constant is never used: `PI`
[INFO] [stderr]   --> src/main.rs:14:1
[INFO] [stderr]    |
[INFO] [stderr] 14 | const PI: f32 = 3.1415926535897932385;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `degrees_to_radians`
[INFO] [stderr]   --> src/main.rs:16:4
[INFO] [stderr]    |
[INFO] [stderr] 16 | fn degrees_to_radians(degrees: f32) -> f32 {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `write_color_old`
[INFO] [stderr]   --> src/main.rs:35:4
[INFO] [stderr]    |
[INFO] [stderr] 35 | fn write_color_old(s: Vec3) {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `create_gradient`
[INFO] [stderr]   --> src/main.rs:56:4
[INFO] [stderr]    |
[INFO] [stderr] 56 | fn create_gradient() {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `hit_sphere`
[INFO] [stderr]    --> src/main.rs:140:4
[INFO] [stderr]     |
[INFO] [stderr] 140 | fn hit_sphere(center: Point3, radius: f32, ray: &Ray) -> f32 {
[INFO] [stderr]     |    ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated constant is never used: `DEFAULT`
[INFO] [stderr]   --> src/hit.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 | /     pub const DEFAULT: HitRecord = HitRecord {
[INFO] [stderr] 13 | |         front_face: false,
[INFO] [stderr] 14 | |         p: Vec3::ZERO,
[INFO] [stderr] 15 | |         t: 0.0,
[INFO] [stderr] 16 | |         normal: Vec3::ONE,
[INFO] [stderr] 17 | |     };
[INFO] [stderr]    | |______^
[INFO] [stderr] 
[INFO] [stderr] warning: `app` (bin "app" test) generated 12 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/app-374c85474ed0098e)
[INFO] [stdout] test vec3::vec3::tests::normalize ... ok
[INFO] [stdout] test vec3::vec3::tests::set_component ... ok
[INFO] [stdout] test vec3::vec3::tests::subtract ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 15 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "78111376a22860edbcded6b46c5e9ec68db6ad8a104dd662ae52e5eaace3dd54", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "78111376a22860edbcded6b46c5e9ec68db6ad8a104dd662ae52e5eaace3dd54", kill_on_drop: false }`
[INFO] [stdout] 78111376a22860edbcded6b46c5e9ec68db6ad8a104dd662ae52e5eaace3dd54