[INFO] cloning repository https://github.com/pxdeu/rust-raytracing-weekend
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/pxdeu/rust-raytracing-weekend" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpxdeu%2Frust-raytracing-weekend", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpxdeu%2Frust-raytracing-weekend'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d8839a203a187c9a831b79dc3d221bb06abae1b5
[INFO] testing pxdeu/rust-raytracing-weekend against try#8de4c7234dd9b97c9d76b58671343fdbbc9a433e+target=x86_64-unknown-linux-musl for musl_upgrade_1_2_5_with_libc_patch_0
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpxdeu%2Frust-raytracing-weekend" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/pxdeu/rust-raytracing-weekend
[INFO] finished tweaking git repo https://github.com/pxdeu/rust-raytracing-weekend
[INFO] tweaked toml for git repo https://github.com/pxdeu/rust-raytracing-weekend written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/pxdeu/rust-raytracing-weekend on toolchain 8de4c7234dd9b97c9d76b58671343fdbbc9a433e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/pxdeu/rust-raytracing-weekend already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded libc v0.2.84
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b7f6388c8fb828bd4f3fb68e0647d557226ca3e2b070ddaab0ed4ac449f00923
[INFO] running `Command { std: "docker" "start" "-a" "b7f6388c8fb828bd4f3fb68e0647d557226ca3e2b070ddaab0ed4ac449f00923", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b7f6388c8fb828bd4f3fb68e0647d557226ca3e2b070ddaab0ed4ac449f00923", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b7f6388c8fb828bd4f3fb68e0647d557226ca3e2b070ddaab0ed4ac449f00923", kill_on_drop: false }`
[INFO] [stdout] b7f6388c8fb828bd4f3fb68e0647d557226ca3e2b070ddaab0ed4ac449f00923
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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" "RUSTDOCFLAGS=--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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "build" "--frozen" "--message-format=json" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }`
[INFO] [stdout] a25d6c7c32aabcbac6e08970d2459071dae4dd516b02195600ce736332c26dd3
[INFO] running `Command { std: "docker" "start" "-a" "a25d6c7c32aabcbac6e08970d2459071dae4dd516b02195600ce736332c26dd3", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.84
[INFO] [stderr]    Compiling getrandom v0.2.2
[INFO] [stderr]    Compiling rand_core v0.6.1
[INFO] [stderr]    Compiling rand_chacha v0.3.0
[INFO] [stderr]    Compiling rand v0.8.3
[INFO] [stderr]    Compiling raytracing-weekend v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::f64::consts::PI`
[INFO] [stdout]  --> src/main.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::f64::consts::PI;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `HitRecord`
[INFO] [stdout]  --> src/main.rs:7:23
[INFO] [stdout]   |
[INFO] [stdout] 7 | use crate::hittable::{HitRecord, Hittable};
[INFO] [stdout]   |                       ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Div`, `Index`, `Mul`, and `Neg`
[INFO] [stdout]  --> src/vec3.rs:2:16
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::ops::{Div, Index, Mul, Neg};
[INFO] [stdout]   |                ^^^  ^^^^^  ^^^  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::util::random`
[INFO] [stdout]  --> src/vec3.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use crate::util::random;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Vec3`
[INFO] [stdout]  --> src/sphere.rs:4:27
[INFO] [stdout]   |
[INFO] [stdout] 4 | use crate::vec3::{Point3, Vec3};
[INFO] [stdout]   |                           ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::cmp`
[INFO] [stdout]  --> src/util.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::cmp;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Vec3`
[INFO] [stdout]  --> src/color.rs:1:26
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::vec3::{Color, Vec3};
[INFO] [stdout]   |                          ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::sphere::Sphere`
[INFO] [stdout]  --> src/metal.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use crate::sphere::Sphere;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::sphere::Sphere`
[INFO] [stdout]  --> src/dielectric.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use crate::sphere::Sphere;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Vec3`
[INFO] [stdout]  --> src/dielectric.rs:5:26
[INFO] [stdout]   |
[INFO] [stdout] 5 | use crate::vec3::{Color, Vec3};
[INFO] [stdout]   |                          ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::material::Material`
[INFO] [stdout]   --> src/main.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use crate::material::Material;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `r_in`
[INFO] [stdout]   --> src/lambertian.rs:17:23
[INFO] [stdout]    |
[INFO] [stdout] 17 |     fn scatter(&self, r_in: &Ray, rec: &HitRecord) -> Option<(Color, Ray)> {
[INFO] [stdout]    |                       ^^^^ help: if this is intentional, prefix it with an underscore: `_r_in`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `refracted`
[INFO] [stdout]   --> src/dielectric.rs:46:13
[INFO] [stdout]    |
[INFO] [stdout] 46 |         let refracted = unit_direction.refract(&rec.normal, refraction_ratio);
[INFO] [stdout]    |             ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_refracted`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `w` is never read
[INFO] [stdout]   --> src/camera.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 4  | pub struct Camera {
[INFO] [stdout]    |            ------ field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 11 |     w: Vec3,
[INFO] [stdout]    |     ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.17s
[INFO] running `Command { std: "docker" "inspect" "a25d6c7c32aabcbac6e08970d2459071dae4dd516b02195600ce736332c26dd3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a25d6c7c32aabcbac6e08970d2459071dae4dd516b02195600ce736332c26dd3", kill_on_drop: false }`
[INFO] [stdout] a25d6c7c32aabcbac6e08970d2459071dae4dd516b02195600ce736332c26dd3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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" "RUSTDOCFLAGS=--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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "test" "--frozen" "--no-run" "--message-format=json" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }`
[INFO] [stdout] 62a89d30c2cd728f3340f5f3e0b5f31757bb74e0ff48d5a2a1b8ca56c6fe1083
[INFO] running `Command { std: "docker" "start" "-a" "62a89d30c2cd728f3340f5f3e0b5f31757bb74e0ff48d5a2a1b8ca56c6fe1083", kill_on_drop: false }`
[INFO] [stderr]    Compiling raytracing-weekend v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::f64::consts::PI`
[INFO] [stdout]  --> src/main.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::f64::consts::PI;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `HitRecord`
[INFO] [stdout]  --> src/main.rs:7:23
[INFO] [stdout]   |
[INFO] [stdout] 7 | use crate::hittable::{HitRecord, Hittable};
[INFO] [stdout]   |                       ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Div`, `Index`, `Mul`, and `Neg`
[INFO] [stdout]  --> src/vec3.rs:2:16
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::ops::{Div, Index, Mul, Neg};
[INFO] [stdout]   |                ^^^  ^^^^^  ^^^  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::util::random`
[INFO] [stdout]  --> src/vec3.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use crate::util::random;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Vec3`
[INFO] [stdout]  --> src/sphere.rs:4:27
[INFO] [stdout]   |
[INFO] [stdout] 4 | use crate::vec3::{Point3, Vec3};
[INFO] [stdout]   |                           ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::cmp`
[INFO] [stdout]  --> src/util.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::cmp;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Vec3`
[INFO] [stdout]  --> src/color.rs:1:26
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::vec3::{Color, Vec3};
[INFO] [stdout]   |                          ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::sphere::Sphere`
[INFO] [stdout]  --> src/metal.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use crate::sphere::Sphere;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::sphere::Sphere`
[INFO] [stdout]  --> src/dielectric.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use crate::sphere::Sphere;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Vec3`
[INFO] [stdout]  --> src/dielectric.rs:5:26
[INFO] [stdout]   |
[INFO] [stdout] 5 | use crate::vec3::{Color, Vec3};
[INFO] [stdout]   |                          ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::material::Material`
[INFO] [stdout]   --> src/main.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use crate::material::Material;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `r_in`
[INFO] [stdout]   --> src/lambertian.rs:17:23
[INFO] [stdout]    |
[INFO] [stdout] 17 |     fn scatter(&self, r_in: &Ray, rec: &HitRecord) -> Option<(Color, Ray)> {
[INFO] [stdout]    |                       ^^^^ help: if this is intentional, prefix it with an underscore: `_r_in`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `refracted`
[INFO] [stdout]   --> src/dielectric.rs:46:13
[INFO] [stdout]    |
[INFO] [stdout] 46 |         let refracted = unit_direction.refract(&rec.normal, refraction_ratio);
[INFO] [stdout]    |             ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_refracted`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `w` is never read
[INFO] [stdout]   --> src/camera.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 4  | pub struct Camera {
[INFO] [stdout]    |            ------ field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 11 |     w: Vec3,
[INFO] [stdout]    |     ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.42s
[INFO] running `Command { std: "docker" "inspect" "62a89d30c2cd728f3340f5f3e0b5f31757bb74e0ff48d5a2a1b8ca56c6fe1083", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "62a89d30c2cd728f3340f5f3e0b5f31757bb74e0ff48d5a2a1b8ca56c6fe1083", kill_on_drop: false }`
[INFO] [stdout] 62a89d30c2cd728f3340f5f3e0b5f31757bb74e0ff48d5a2a1b8ca56c6fe1083
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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" "RUSTDOCFLAGS=--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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "test" "--frozen" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }`
[INFO] [stdout] 0aca3859ca0cb11f88f342618d9a7139396d2e2db95610229dcb9b96a80057e6
[INFO] running `Command { std: "docker" "start" "-a" "0aca3859ca0cb11f88f342618d9a7139396d2e2db95610229dcb9b96a80057e6", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `std::f64::consts::PI`
[INFO] [stderr]  --> src/main.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::f64::consts::PI;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `HitRecord`
[INFO] [stderr]  --> src/main.rs:7:23
[INFO] [stderr]   |
[INFO] [stderr] 7 | use crate::hittable::{HitRecord, Hittable};
[INFO] [stderr]   |                       ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Div`, `Index`, `Mul`, and `Neg`
[INFO] [stderr]  --> src/vec3.rs:2:16
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::ops::{Div, Index, Mul, Neg};
[INFO] [stderr]   |                ^^^  ^^^^^  ^^^  ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::util::random`
[INFO] [stderr]  --> src/vec3.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use crate::util::random;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Vec3`
[INFO] [stderr]  --> src/sphere.rs:4:27
[INFO] [stderr]   |
[INFO] [stderr] 4 | use crate::vec3::{Point3, Vec3};
[INFO] [stderr]   |                           ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::cmp`
[INFO] [stderr]  --> src/util.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::cmp;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Vec3`
[INFO] [stderr]  --> src/color.rs:1:26
[INFO] [stderr]   |
[INFO] [stderr] 1 | use crate::vec3::{Color, Vec3};
[INFO] [stderr]   |                          ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::sphere::Sphere`
[INFO] [stderr]  --> src/metal.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use crate::sphere::Sphere;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::sphere::Sphere`
[INFO] [stderr]  --> src/dielectric.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use crate::sphere::Sphere;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Vec3`
[INFO] [stderr]  --> src/dielectric.rs:5:26
[INFO] [stderr]   |
[INFO] [stderr] 5 | use crate::vec3::{Color, Vec3};
[INFO] [stderr]   |                          ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::material::Material`
[INFO] [stderr]   --> src/main.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 | use crate::material::Material;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `r_in`
[INFO] [stderr]   --> src/lambertian.rs:17:23
[INFO] [stderr]    |
[INFO] [stderr] 17 |     fn scatter(&self, r_in: &Ray, rec: &HitRecord) -> Option<(Color, Ray)> {
[INFO] [stderr]    |                       ^^^^ help: if this is intentional, prefix it with an underscore: `_r_in`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `refracted`
[INFO] [stderr]   --> src/dielectric.rs:46:13
[INFO] [stderr]    |
[INFO] [stderr] 46 |         let refracted = unit_direction.refract(&rec.normal, refraction_ratio);
[INFO] [stderr]    |             ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_refracted`
[INFO] [stderr] 
[INFO] [stderr] warning: field `w` is never read
[INFO] [stderr]   --> src/camera.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 4  | pub struct Camera {
[INFO] [stderr]    |            ------ field in this struct
[INFO] [stderr] ...
[INFO] [stderr] 11 |     w: Vec3,
[INFO] [stderr]    |     ^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `raytracing-weekend` (bin "raytracing-weekend" test) generated 14 warnings (run `cargo fix --bin "raytracing-weekend" --tests` to apply 10 suggestions)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/x86_64-unknown-linux-musl/debug/deps/raytracing_weekend-938d8cbd6c3bd78a)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "0aca3859ca0cb11f88f342618d9a7139396d2e2db95610229dcb9b96a80057e6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0aca3859ca0cb11f88f342618d9a7139396d2e2db95610229dcb9b96a80057e6", kill_on_drop: false }`
[INFO] [stdout] 0aca3859ca0cb11f88f342618d9a7139396d2e2db95610229dcb9b96a80057e6