[INFO] cloning repository https://github.com/qianxi0410/ray-tracing-in-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/qianxi0410/ray-tracing-in-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fqianxi0410%2Fray-tracing-in-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fqianxi0410%2Fray-tracing-in-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d6e121cd8e14a9e508f2a9e80d101ae534fcbae0
[INFO] testing qianxi0410/ray-tracing-in-rust against 1.60.0 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fqianxi0410%2Fray-tracing-in-rust" "/workspace/builds/worker-55/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-55/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/qianxi0410/ray-tracing-in-rust on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/qianxi0410/ray-tracing-in-rust
[INFO] finished tweaking git repo https://github.com/qianxi0410/ray-tracing-in-rust
[INFO] tweaked toml for git repo https://github.com/qianxi0410/ray-tracing-in-rust written to /workspace/builds/worker-55/source/Cargo.toml
[INFO] crate git repo https://github.com/qianxi0410/ray-tracing-in-rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-55/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-55/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a09651c83c2a8624e34c35bd982e63390cc0ecd30725ad69f6ffb7bd9a5ba99d
[INFO] running `Command { std: "docker" "start" "-a" "a09651c83c2a8624e34c35bd982e63390cc0ecd30725ad69f6ffb7bd9a5ba99d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a09651c83c2a8624e34c35bd982e63390cc0ecd30725ad69f6ffb7bd9a5ba99d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a09651c83c2a8624e34c35bd982e63390cc0ecd30725ad69f6ffb7bd9a5ba99d", kill_on_drop: false }`
[INFO] [stdout] a09651c83c2a8624e34c35bd982e63390cc0ecd30725ad69f6ffb7bd9a5ba99d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-55/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-55/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9731dcb8f766e564d9969ab14d2f197af7c0e75f1ed9a34e222b52ac615d7514
[INFO] running `Command { std: "docker" "start" "-a" "9731dcb8f766e564d9969ab14d2f197af7c0e75f1ed9a34e222b52ac615d7514", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.101
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling getrandom v0.2.3
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.4
[INFO] [stderr]    Compiling ray-tracing-in-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::borrow::Borrow`
[INFO] [stdout]  --> src/main.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::borrow::Borrow;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::f64::consts::PI`
[INFO] [stdout]  --> src/main.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::f64::consts::PI;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Vec3d`
[INFO] [stdout]  --> src/hittable_list.rs:6:30
[INFO] [stdout]   |
[INFO] [stdout] 6 |     vec3::{Color3d, Point3d, Vec3d},
[INFO] [stdout]   |                              ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `process::Output`
[INFO] [stdout]  --> src/vec3.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     process::Output,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/main.rs:77:32
[INFO] [stdout]    |
[INFO] [stdout] 77 | fn ray_color_5(r: &Ray, word: &Hittable) -> Color3d {
[INFO] [stdout]    |                                ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 77 - fn ray_color_5(r: &Ray, word: &Hittable) -> Color3d {
[INFO] [stdout] 77 + fn ray_color_5(r: &Ray, word: &dyn Hittable) -> Color3d {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/main.rs:87:32
[INFO] [stdout]    |
[INFO] [stdout] 87 | fn ray_color_6(r: &Ray, word: &Hittable, depth: i32) -> Color3d {
[INFO] [stdout]    |                                ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 87 - fn ray_color_6(r: &Ray, word: &Hittable, depth: i32) -> Color3d {
[INFO] [stdout] 87 + fn ray_color_6(r: &Ray, word: &dyn Hittable, depth: i32) -> Color3d {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `material::Material`
[INFO] [stdout]   --> src/main.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | use material::Material;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `r_in`
[INFO] [stdout]   --> src/material.rs:41:23
[INFO] [stdout]    |
[INFO] [stdout] 41 |     fn scatter(&self, r_in: &Ray, rec: &HitRecord) -> Option<(Color3d, 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: function is never used: `ray_color`
[INFO] [stdout]   --> src/main.rs:29:4
[INFO] [stdout]    |
[INFO] [stdout] 29 | fn ray_color(r: &Ray) -> Color3d {
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `ray_color_sphere`
[INFO] [stdout]   --> src/main.rs:35:4
[INFO] [stdout]    |
[INFO] [stdout] 35 | fn ray_color_sphere(r: &Ray) -> Color3d {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `hit_sphere`
[INFO] [stdout]   --> src/main.rs:44:4
[INFO] [stdout]    |
[INFO] [stdout] 44 | fn hit_sphere(center: &Point3d, radius: f64, r: &Ray) -> bool {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `hit_sphere_color`
[INFO] [stdout]   --> src/main.rs:53:4
[INFO] [stdout]    |
[INFO] [stdout] 53 | fn hit_sphere_color(center: &Point3d, radius: f64, r: &Ray) -> f64 {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `ray_color_sphere_color`
[INFO] [stdout]   --> src/main.rs:66:4
[INFO] [stdout]    |
[INFO] [stdout] 66 | fn ray_color_sphere_color(r: &Ray) -> Color3d {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `ray_color_5`
[INFO] [stdout]   --> src/main.rs:77:4
[INFO] [stdout]    |
[INFO] [stdout] 77 | fn ray_color_5(r: &Ray, word: &Hittable) -> Color3d {
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `ray_color_6`
[INFO] [stdout]   --> src/main.rs:87:4
[INFO] [stdout]    |
[INFO] [stdout] 87 | fn ray_color_6(r: &Ray, word: &Hittable, depth: i32) -> Color3d {
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `ASPECT_RATIO`
[INFO] [stdout]    --> src/main.rs:451:1
[INFO] [stdout]     |
[INFO] [stdout] 451 | const ASPECT_RATIO: f64 = 16.0 / 9.0;
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `IMAGE_WIDTH`
[INFO] [stdout]    --> src/main.rs:452:1
[INFO] [stdout]     |
[INFO] [stdout] 452 | const IMAGE_WIDTH: i32 = 400;
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `IMAGE_HEIGHT`
[INFO] [stdout]    --> src/main.rs:453:1
[INFO] [stdout]     |
[INFO] [stdout] 453 | const IMAGE_HEIGHT: i32 = (IMAGE_WIDTH as f64 / ASPECT_RATIO) as i32;
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `SAMPLES_PER_PIXEL`
[INFO] [stdout]    --> src/main.rs:454:1
[INFO] [stdout]     |
[INFO] [stdout] 454 | const SAMPLES_PER_PIXEL: i32 = 100;
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `MAX_DEPTH`
[INFO] [stdout]    --> src/main.rs:455:1
[INFO] [stdout]     |
[INFO] [stdout] 455 | const MAX_DEPTH: i32 = 50;
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `scene13`
[INFO] [stdout]    --> src/main.rs:704:4
[INFO] [stdout]     |
[INFO] [stdout] 704 | fn scene13() -> io::Result<()> {
[INFO] [stdout]     |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `w`
[INFO] [stdout]   --> src/camera.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 |     w: Vec3d,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `set_face_normal`
[INFO] [stdout]   --> src/hittable.rs:17:12
[INFO] [stdout]    |
[INFO] [stdout] 17 |     pub fn set_face_normal(&mut self, r: &Ray, outward_normal: &Vec3d) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `clear`
[INFO] [stdout]   --> src/hittable_list.rs:18:12
[INFO] [stdout]    |
[INFO] [stdout] 18 |     pub fn clear(&mut self) {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `N` should have a snake case name
[INFO] [stdout]   --> src/main.rs:69:13
[INFO] [stdout]    |
[INFO] [stdout] 69 |         let N = (r.at(t) - Vec3d::new(0.0, 0.0, -1.0)).unit_vector();
[INFO] [stdout]    |             ^ help: convert the identifier to snake case: `n`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/main.rs:124:5
[INFO] [stdout]     |
[INFO] [stdout] 124 |     scene14();
[INFO] [stdout]     |     ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/main.rs:765:5
[INFO] [stdout]     |
[INFO] [stdout] 765 |     fp.write(format!("P3\n{} {}\n255\n", IMAGE_WIDTH, IMAGE_HEIGHT).as_bytes());
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/main.rs:777:13
[INFO] [stdout]     |
[INFO] [stdout] 777 |             write_color(&mut fp, color, SAMPLES_PER_PIXEL);
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/main.rs:815:5
[INFO] [stdout]     |
[INFO] [stdout] 815 |     fp.write(format!("P3\n{} {}\n255\n", IMAGE_WIDTH, IMAGE_HEIGHT).as_bytes());
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/main.rs:828:13
[INFO] [stdout]     |
[INFO] [stdout] 828 |             write_color(&mut fp, color, SAMPLES_PER_PIXEL);
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static variable `distribution` should have an upper case name
[INFO] [stdout]   --> src/utils.rs:13:20
[INFO] [stdout]    |
[INFO] [stdout] 13 |         static ref distribution: Uniform<f64> = Uniform::new(0.0, 1.0);
[INFO] [stdout]    |                    ^^^^^^^^^^^^ help: convert the identifier to upper case: `DISTRIBUTION`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_upper_case_globals)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 31 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 26s
[INFO] running `Command { std: "docker" "inspect" "9731dcb8f766e564d9969ab14d2f197af7c0e75f1ed9a34e222b52ac615d7514", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9731dcb8f766e564d9969ab14d2f197af7c0e75f1ed9a34e222b52ac615d7514", kill_on_drop: false }`
[INFO] [stdout] 9731dcb8f766e564d9969ab14d2f197af7c0e75f1ed9a34e222b52ac615d7514
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-55/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-55/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 17eb3f31770e602c728f051a2f62085e2c7eef50f29904cfdffa3878afc864dc
[INFO] running `Command { std: "docker" "start" "-a" "17eb3f31770e602c728f051a2f62085e2c7eef50f29904cfdffa3878afc864dc", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling ray-tracing-in-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::borrow::Borrow`
[INFO] [stdout]  --> src/main.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::borrow::Borrow;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::f64::consts::PI`
[INFO] [stdout]  --> src/main.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::f64::consts::PI;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Vec3d`
[INFO] [stdout]  --> src/hittable_list.rs:6:30
[INFO] [stdout]   |
[INFO] [stdout] 6 |     vec3::{Color3d, Point3d, Vec3d},
[INFO] [stdout]   |                              ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `process::Output`
[INFO] [stdout]  --> src/vec3.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     process::Output,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/main.rs:77:32
[INFO] [stdout]    |
[INFO] [stdout] 77 | fn ray_color_5(r: &Ray, word: &Hittable) -> Color3d {
[INFO] [stdout]    |                                ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 77 - fn ray_color_5(r: &Ray, word: &Hittable) -> Color3d {
[INFO] [stdout] 77 + fn ray_color_5(r: &Ray, word: &dyn Hittable) -> Color3d {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/main.rs:87:32
[INFO] [stdout]    |
[INFO] [stdout] 87 | fn ray_color_6(r: &Ray, word: &Hittable, depth: i32) -> Color3d {
[INFO] [stdout]    |                                ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 87 - fn ray_color_6(r: &Ray, word: &Hittable, depth: i32) -> Color3d {
[INFO] [stdout] 87 + fn ray_color_6(r: &Ray, word: &dyn Hittable, depth: i32) -> Color3d {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `material::Material`
[INFO] [stdout]   --> src/main.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | use material::Material;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `r_in`
[INFO] [stdout]   --> src/material.rs:41:23
[INFO] [stdout]    |
[INFO] [stdout] 41 |     fn scatter(&self, r_in: &Ray, rec: &HitRecord) -> Option<(Color3d, 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: function is never used: `ray_color`
[INFO] [stdout]   --> src/main.rs:29:4
[INFO] [stdout]    |
[INFO] [stdout] 29 | fn ray_color(r: &Ray) -> Color3d {
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `ray_color_sphere`
[INFO] [stdout]   --> src/main.rs:35:4
[INFO] [stdout]    |
[INFO] [stdout] 35 | fn ray_color_sphere(r: &Ray) -> Color3d {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `hit_sphere`
[INFO] [stdout]   --> src/main.rs:44:4
[INFO] [stdout]    |
[INFO] [stdout] 44 | fn hit_sphere(center: &Point3d, radius: f64, r: &Ray) -> bool {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `hit_sphere_color`
[INFO] [stdout]   --> src/main.rs:53:4
[INFO] [stdout]    |
[INFO] [stdout] 53 | fn hit_sphere_color(center: &Point3d, radius: f64, r: &Ray) -> f64 {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `ray_color_sphere_color`
[INFO] [stdout]   --> src/main.rs:66:4
[INFO] [stdout]    |
[INFO] [stdout] 66 | fn ray_color_sphere_color(r: &Ray) -> Color3d {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `ray_color_5`
[INFO] [stdout]   --> src/main.rs:77:4
[INFO] [stdout]    |
[INFO] [stdout] 77 | fn ray_color_5(r: &Ray, word: &Hittable) -> Color3d {
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `ray_color_6`
[INFO] [stdout]   --> src/main.rs:87:4
[INFO] [stdout]    |
[INFO] [stdout] 87 | fn ray_color_6(r: &Ray, word: &Hittable, depth: i32) -> Color3d {
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `ASPECT_RATIO`
[INFO] [stdout]    --> src/main.rs:451:1
[INFO] [stdout]     |
[INFO] [stdout] 451 | const ASPECT_RATIO: f64 = 16.0 / 9.0;
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `IMAGE_WIDTH`
[INFO] [stdout]    --> src/main.rs:452:1
[INFO] [stdout]     |
[INFO] [stdout] 452 | const IMAGE_WIDTH: i32 = 400;
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `IMAGE_HEIGHT`
[INFO] [stdout]    --> src/main.rs:453:1
[INFO] [stdout]     |
[INFO] [stdout] 453 | const IMAGE_HEIGHT: i32 = (IMAGE_WIDTH as f64 / ASPECT_RATIO) as i32;
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `SAMPLES_PER_PIXEL`
[INFO] [stdout]    --> src/main.rs:454:1
[INFO] [stdout]     |
[INFO] [stdout] 454 | const SAMPLES_PER_PIXEL: i32 = 100;
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `MAX_DEPTH`
[INFO] [stdout]    --> src/main.rs:455:1
[INFO] [stdout]     |
[INFO] [stdout] 455 | const MAX_DEPTH: i32 = 50;
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `scene13`
[INFO] [stdout]    --> src/main.rs:704:4
[INFO] [stdout]     |
[INFO] [stdout] 704 | fn scene13() -> io::Result<()> {
[INFO] [stdout]     |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `w`
[INFO] [stdout]   --> src/camera.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 |     w: Vec3d,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `set_face_normal`
[INFO] [stdout]   --> src/hittable.rs:17:12
[INFO] [stdout]    |
[INFO] [stdout] 17 |     pub fn set_face_normal(&mut self, r: &Ray, outward_normal: &Vec3d) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `clear`
[INFO] [stdout]   --> src/hittable_list.rs:18:12
[INFO] [stdout]    |
[INFO] [stdout] 18 |     pub fn clear(&mut self) {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `N` should have a snake case name
[INFO] [stdout]   --> src/main.rs:69:13
[INFO] [stdout]    |
[INFO] [stdout] 69 |         let N = (r.at(t) - Vec3d::new(0.0, 0.0, -1.0)).unit_vector();
[INFO] [stdout]    |             ^ help: convert the identifier to snake case: `n`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/main.rs:124:5
[INFO] [stdout]     |
[INFO] [stdout] 124 |     scene14();
[INFO] [stdout]     |     ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/main.rs:765:5
[INFO] [stdout]     |
[INFO] [stdout] 765 |     fp.write(format!("P3\n{} {}\n255\n", IMAGE_WIDTH, IMAGE_HEIGHT).as_bytes());
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/main.rs:777:13
[INFO] [stdout]     |
[INFO] [stdout] 777 |             write_color(&mut fp, color, SAMPLES_PER_PIXEL);
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/main.rs:815:5
[INFO] [stdout]     |
[INFO] [stdout] 815 |     fp.write(format!("P3\n{} {}\n255\n", IMAGE_WIDTH, IMAGE_HEIGHT).as_bytes());
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/main.rs:828:13
[INFO] [stdout]     |
[INFO] [stdout] 828 |             write_color(&mut fp, color, SAMPLES_PER_PIXEL);
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static variable `distribution` should have an upper case name
[INFO] [stdout]   --> src/utils.rs:13:20
[INFO] [stdout]    |
[INFO] [stdout] 13 |         static ref distribution: Uniform<f64> = Uniform::new(0.0, 1.0);
[INFO] [stdout]    |                    ^^^^^^^^^^^^ help: convert the identifier to upper case: `DISTRIBUTION`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_upper_case_globals)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 31 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.33s
[INFO] running `Command { std: "docker" "inspect" "17eb3f31770e602c728f051a2f62085e2c7eef50f29904cfdffa3878afc864dc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "17eb3f31770e602c728f051a2f62085e2c7eef50f29904cfdffa3878afc864dc", kill_on_drop: false }`
[INFO] [stdout] 17eb3f31770e602c728f051a2f62085e2c7eef50f29904cfdffa3878afc864dc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-55/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-55/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 7207313d8bf2e977b7cdaed15ae2d3ab4bf2c3fa0ae089f00e556e263593a6fb
[INFO] running `Command { std: "docker" "start" "-a" "7207313d8bf2e977b7cdaed15ae2d3ab4bf2c3fa0ae089f00e556e263593a6fb", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: unused import: `std::borrow::Borrow`
[INFO] [stderr]  --> src/main.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::borrow::Borrow;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::f64::consts::PI`
[INFO] [stderr]  --> src/main.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::f64::consts::PI;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Vec3d`
[INFO] [stderr]  --> src/hittable_list.rs:6:30
[INFO] [stderr]   |
[INFO] [stderr] 6 |     vec3::{Color3d, Point3d, Vec3d},
[INFO] [stderr]   |                              ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `process::Output`
[INFO] [stderr]  --> src/vec3.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 |     process::Output,
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:77:32
[INFO] [stderr]    |
[INFO] [stderr] 77 | fn ray_color_5(r: &Ray, word: &Hittable) -> Color3d {
[INFO] [stderr]    |                                ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 77 - fn ray_color_5(r: &Ray, word: &Hittable) -> Color3d {
[INFO] [stderr] 77 + fn ray_color_5(r: &Ray, word: &dyn Hittable) -> Color3d {
[INFO] [stderr]    | 
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:87:32
[INFO] [stderr]    |
[INFO] [stderr] 87 | fn ray_color_6(r: &Ray, word: &Hittable, depth: i32) -> Color3d {
[INFO] [stderr]    |                                ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 87 - fn ray_color_6(r: &Ray, word: &Hittable, depth: i32) -> Color3d {
[INFO] [stderr] 87 + fn ray_color_6(r: &Ray, word: &dyn Hittable, depth: i32) -> Color3d {
[INFO] [stderr]    | 
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `material::Material`
[INFO] [stderr]   --> src/main.rs:16:5
[INFO] [stderr]    |
[INFO] [stderr] 16 | use material::Material;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `r_in`
[INFO] [stderr]   --> src/material.rs:41:23
[INFO] [stderr]    |
[INFO] [stderr] 41 |     fn scatter(&self, r_in: &Ray, rec: &HitRecord) -> Option<(Color3d, 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: function is never used: `ray_color`
[INFO] [stderr]   --> src/main.rs:29:4
[INFO] [stderr]    |
[INFO] [stderr] 29 | fn ray_color(r: &Ray) -> Color3d {
[INFO] [stderr]    |    ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `ray_color_sphere`
[INFO] [stderr]   --> src/main.rs:35:4
[INFO] [stderr]    |
[INFO] [stderr] 35 | fn ray_color_sphere(r: &Ray) -> Color3d {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `hit_sphere`
[INFO] [stderr]   --> src/main.rs:44:4
[INFO] [stderr]    |
[INFO] [stderr] 44 | fn hit_sphere(center: &Point3d, radius: f64, r: &Ray) -> bool {
[INFO] [stderr]    |    ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `hit_sphere_color`
[INFO] [stderr]   --> src/main.rs:53:4
[INFO] [stderr]    |
[INFO] [stderr] 53 | fn hit_sphere_color(center: &Point3d, radius: f64, r: &Ray) -> f64 {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `ray_color_sphere_color`
[INFO] [stderr]   --> src/main.rs:66:4
[INFO] [stderr]    |
[INFO] [stderr] 66 | fn ray_color_sphere_color(r: &Ray) -> Color3d {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `ray_color_5`
[INFO] [stderr]   --> src/main.rs:77:4
[INFO] [stderr]    |
[INFO] [stderr] 77 | fn ray_color_5(r: &Ray, word: &Hittable) -> Color3d {
[INFO] [stderr]    |    ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `ray_color_6`
[INFO] [stderr]   --> src/main.rs:87:4
[INFO] [stderr]    |
[INFO] [stderr] 87 | fn ray_color_6(r: &Ray, word: &Hittable, depth: i32) -> Color3d {
[INFO] [stderr]    |    ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant is never used: `ASPECT_RATIO`
[INFO] [stderr]    --> src/main.rs:451:1
[INFO] [stderr]     |
[INFO] [stderr] 451 | const ASPECT_RATIO: f64 = 16.0 / 9.0;
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant is never used: `IMAGE_WIDTH`
[INFO] [stderr]    --> src/main.rs:452:1
[INFO] [stderr]     |
[INFO] [stderr] 452 | const IMAGE_WIDTH: i32 = 400;
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant is never used: `IMAGE_HEIGHT`
[INFO] [stderr]    --> src/main.rs:453:1
[INFO] [stderr]     |
[INFO] [stderr] 453 | const IMAGE_HEIGHT: i32 = (IMAGE_WIDTH as f64 / ASPECT_RATIO) as i32;
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant is never used: `SAMPLES_PER_PIXEL`
[INFO] [stderr]    --> src/main.rs:454:1
[INFO] [stderr]     |
[INFO] [stderr] 454 | const SAMPLES_PER_PIXEL: i32 = 100;
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant is never used: `MAX_DEPTH`
[INFO] [stderr]    --> src/main.rs:455:1
[INFO] [stderr]     |
[INFO] [stderr] 455 | const MAX_DEPTH: i32 = 50;
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `scene13`
[INFO] [stderr]    --> src/main.rs:704:4
[INFO] [stderr]     |
[INFO] [stderr] 704 | fn scene13() -> io::Result<()> {
[INFO] [stderr]     |    ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `w`
[INFO] [stderr]   --> src/camera.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 |     w: Vec3d,
[INFO] [stderr]    |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `set_face_normal`
[INFO] [stderr]   --> src/hittable.rs:17:12
[INFO] [stderr]    |
[INFO] [stderr] 17 |     pub fn set_face_normal(&mut self, r: &Ray, outward_normal: &Vec3d) {
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `clear`
[INFO] [stderr]   --> src/hittable_list.rs:18:12
[INFO] [stderr]    |
[INFO] [stderr] 18 |     pub fn clear(&mut self) {
[INFO] [stderr]    |            ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable `N` should have a snake case name
[INFO] [stderr]   --> src/main.rs:69:13
[INFO] [stderr]    |
[INFO] [stderr] 69 |         let N = (r.at(t) - Vec3d::new(0.0, 0.0, -1.0)).unit_vector();
[INFO] [stderr]    |             ^ help: convert the identifier to snake case: `n`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/main.rs:124:5
[INFO] [stderr]     |
[INFO] [stderr] 124 |     scene14();
[INFO] [stderr]     |     ^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/main.rs:765:5
[INFO] [stderr]     |
[INFO] [stderr] 765 |     fp.write(format!("P3\n{} {}\n255\n", IMAGE_WIDTH, IMAGE_HEIGHT).as_bytes());
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/main.rs:777:13
[INFO] [stderr]     |
[INFO] [stderr] 777 |             write_color(&mut fp, color, SAMPLES_PER_PIXEL);
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/main.rs:815:5
[INFO] [stderr]     |
[INFO] [stderr] 815 |     fp.write(format!("P3\n{} {}\n255\n", IMAGE_WIDTH, IMAGE_HEIGHT).as_bytes());
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/main.rs:828:13
[INFO] [stderr]     |
[INFO] [stderr] 828 |             write_color(&mut fp, color, SAMPLES_PER_PIXEL);
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: static variable `distribution` should have an upper case name
[INFO] [stderr]   --> src/utils.rs:13:20
[INFO] [stderr]    |
[INFO] [stderr] 13 |         static ref distribution: Uniform<f64> = Uniform::new(0.0, 1.0);
[INFO] [stderr]    |                    ^^^^^^^^^^^^ help: convert the identifier to upper case: `DISTRIBUTION`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_upper_case_globals)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `ray-tracing-in-rust` (bin "ray-tracing-in-rust" test) generated 31 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/ray_tracing_in_rust-8290ce4359de8532)
[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" "7207313d8bf2e977b7cdaed15ae2d3ab4bf2c3fa0ae089f00e556e263593a6fb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7207313d8bf2e977b7cdaed15ae2d3ab4bf2c3fa0ae089f00e556e263593a6fb", kill_on_drop: false }`
[INFO] [stdout] 7207313d8bf2e977b7cdaed15ae2d3ab4bf2c3fa0ae089f00e556e263593a6fb