[INFO] cloning repository https://github.com/JakubSzamuk/ray-tracing
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/JakubSzamuk/ray-tracing" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJakubSzamuk%2Fray-tracing", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJakubSzamuk%2Fray-tracing'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ab3ffea88da971781dba6cff0541f306759fbffc
[INFO] testing JakubSzamuk/ray-tracing/ab3ffea88da971781dba6cff0541f306759fbffc against master#9e297bf54d31eb3b30067208ff9af4416945a2ed for pr-125507
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJakubSzamuk%2Fray-tracing" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/JakubSzamuk/ray-tracing on toolchain 9e297bf54d31eb3b30067208ff9af4416945a2ed
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9e297bf54d31eb3b30067208ff9af4416945a2ed" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/JakubSzamuk/ray-tracing
[INFO] finished tweaking git repo https://github.com/JakubSzamuk/ray-tracing
[INFO] tweaked toml for git repo https://github.com/JakubSzamuk/ray-tracing written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/JakubSzamuk/ray-tracing 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" "+9e297bf54d31eb3b30067208ff9af4416945a2ed" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:beeedbb442662e57d416641ecc3200b38e573c25b057896194468d05594dd835" "/opt/rustwide/cargo-home/bin/cargo" "+9e297bf54d31eb3b30067208ff9af4416945a2ed" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 592a43d3b9d6c5d951feff6aa799ef6e9fb1bef6c5cee37e45228e589258897f
[INFO] running `Command { std: "docker" "start" "-a" "592a43d3b9d6c5d951feff6aa799ef6e9fb1bef6c5cee37e45228e589258897f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "592a43d3b9d6c5d951feff6aa799ef6e9fb1bef6c5cee37e45228e589258897f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "592a43d3b9d6c5d951feff6aa799ef6e9fb1bef6c5cee37e45228e589258897f", kill_on_drop: false }`
[INFO] [stdout] 592a43d3b9d6c5d951feff6aa799ef6e9fb1bef6c5cee37e45228e589258897f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:beeedbb442662e57d416641ecc3200b38e573c25b057896194468d05594dd835" "/opt/rustwide/cargo-home/bin/cargo" "+9e297bf54d31eb3b30067208ff9af4416945a2ed" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 34785eea2625af797fde093e5eb7e01d6b0dd3232a355d7327006c68ff17534f
[INFO] running `Command { std: "docker" "start" "-a" "34785eea2625af797fde093e5eb7e01d6b0dd3232a355d7327006c68ff17534f", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.149
[INFO] [stderr]    Compiling ppv-lite86 v0.2.17
[INFO] [stderr]    Compiling getrandom v0.2.10
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling ray-tracing v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Color`
[INFO] [stdout]  --> src/sphere.rs:3:30
[INFO] [stdout]   |
[INFO] [stdout] 3 | use super::vectors::{Point3, Color};
[INFO] [stdout]   |                              ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fmt::format`
[INFO] [stdout]  --> src/progress.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::fmt::format;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::image::VIEWPORT_HEIGHT`
[INFO] [stdout]  --> src/camera.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::image::VIEWPORT_HEIGHT;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `stderr`
[INFO] [stdout]  --> src/camera.rs:9:33
[INFO] [stdout]   |
[INFO] [stdout] 9 | use std::io::{Write, BufWriter, stderr};
[INFO] [stdout]   |                                 ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::time::SystemTime`
[INFO] [stdout]   --> src/camera.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use std::time::SystemTime;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `for` iterator expression
[INFO] [stdout]   --> src/camera.rs:97:14
[INFO] [stdout]    |
[INFO] [stdout] 97 |     for j in (0..self.viewport_height) {
[INFO] [stdout]    |              ^                       ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 97 -     for j in (0..self.viewport_height) {
[INFO] [stdout] 97 +     for j in 0..self.viewport_height {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Hit`
[INFO] [stdout]   --> src/main.rs:11:16
[INFO] [stdout]    |
[INFO] [stdout] 11 | use material::{Hit, Diffuse, Metal};
[INFO] [stdout]    |                ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `VIEWPORT_HEIGHT` is never used
[INFO] [stdout]  --> src/image.rs:4:11
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub const VIEWPORT_HEIGHT: f64 = 2.0;
[INFO] [stdout]   |           ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Progress` is never constructed
[INFO] [stdout]  --> src/progress.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct Progress {
[INFO] [stdout]   |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new` and `update` are never used
[INFO] [stdout]   --> src/progress.rs:12:10
[INFO] [stdout]    |
[INFO] [stdout] 11 | impl Progress {
[INFO] [stdout]    | ------------- associated items in this implementation
[INFO] [stdout] 12 |   pub fn new(width: u64, height: u64) -> Progress {
[INFO] [stdout]    |          ^^^
[INFO] [stdout] ...
[INFO] [stdout] 26 |   pub fn update(&mut self, current: u64, time_taken: u64) -> String {
[INFO] [stdout]    |          ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `focal_length` is never read
[INFO] [stdout]   --> src/camera.rs:19:3
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub struct Camera {
[INFO] [stdout]    |            ------ field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 19 |   focal_length: f64,
[INFO] [stdout]    |   ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Quality` is never constructed
[INFO] [stdout]   --> src/camera.rs:27:8
[INFO] [stdout]    |
[INFO] [stdout] 27 | struct Quality {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 12 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.47s
[INFO] running `Command { std: "docker" "inspect" "34785eea2625af797fde093e5eb7e01d6b0dd3232a355d7327006c68ff17534f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "34785eea2625af797fde093e5eb7e01d6b0dd3232a355d7327006c68ff17534f", kill_on_drop: false }`
[INFO] [stdout] 34785eea2625af797fde093e5eb7e01d6b0dd3232a355d7327006c68ff17534f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:beeedbb442662e57d416641ecc3200b38e573c25b057896194468d05594dd835" "/opt/rustwide/cargo-home/bin/cargo" "+9e297bf54d31eb3b30067208ff9af4416945a2ed" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 89316cc6552ad5bc03da9647d9862cf1a171ec00725dbd96ea381c373cdd05f1
[INFO] running `Command { std: "docker" "start" "-a" "89316cc6552ad5bc03da9647d9862cf1a171ec00725dbd96ea381c373cdd05f1", kill_on_drop: false }`
[INFO] [stderr]    Compiling ray-tracing v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Color`
[INFO] [stdout]  --> src/sphere.rs:3:30
[INFO] [stdout]   |
[INFO] [stdout] 3 | use super::vectors::{Point3, Color};
[INFO] [stdout]   |                              ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fmt::format`
[INFO] [stdout]  --> src/progress.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::fmt::format;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::image::VIEWPORT_HEIGHT`
[INFO] [stdout]  --> src/camera.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::image::VIEWPORT_HEIGHT;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `stderr`
[INFO] [stdout]  --> src/camera.rs:9:33
[INFO] [stdout]   |
[INFO] [stdout] 9 | use std::io::{Write, BufWriter, stderr};
[INFO] [stdout]   |                                 ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::time::SystemTime`
[INFO] [stdout]   --> src/camera.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use std::time::SystemTime;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `for` iterator expression
[INFO] [stdout]   --> src/camera.rs:97:14
[INFO] [stdout]    |
[INFO] [stdout] 97 |     for j in (0..self.viewport_height) {
[INFO] [stdout]    |              ^                       ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 97 -     for j in (0..self.viewport_height) {
[INFO] [stdout] 97 +     for j in 0..self.viewport_height {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Hit`
[INFO] [stdout]   --> src/main.rs:11:16
[INFO] [stdout]    |
[INFO] [stdout] 11 | use material::{Hit, Diffuse, Metal};
[INFO] [stdout]    |                ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `VIEWPORT_HEIGHT` is never used
[INFO] [stdout]  --> src/image.rs:4:11
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub const VIEWPORT_HEIGHT: f64 = 2.0;
[INFO] [stdout]   |           ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Progress` is never constructed
[INFO] [stdout]  --> src/progress.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct Progress {
[INFO] [stdout]   |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new` and `update` are never used
[INFO] [stdout]   --> src/progress.rs:12:10
[INFO] [stdout]    |
[INFO] [stdout] 11 | impl Progress {
[INFO] [stdout]    | ------------- associated items in this implementation
[INFO] [stdout] 12 |   pub fn new(width: u64, height: u64) -> Progress {
[INFO] [stdout]    |          ^^^
[INFO] [stdout] ...
[INFO] [stdout] 26 |   pub fn update(&mut self, current: u64, time_taken: u64) -> String {
[INFO] [stdout]    |          ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `focal_length` is never read
[INFO] [stdout]   --> src/camera.rs:19:3
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub struct Camera {
[INFO] [stdout]    |            ------ field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 19 |   focal_length: f64,
[INFO] [stdout]    |   ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Quality` is never constructed
[INFO] [stdout]   --> src/camera.rs:27:8
[INFO] [stdout]    |
[INFO] [stdout] 27 | struct Quality {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 12 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.22s
[INFO] running `Command { std: "docker" "inspect" "89316cc6552ad5bc03da9647d9862cf1a171ec00725dbd96ea381c373cdd05f1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "89316cc6552ad5bc03da9647d9862cf1a171ec00725dbd96ea381c373cdd05f1", kill_on_drop: false }`
[INFO] [stdout] 89316cc6552ad5bc03da9647d9862cf1a171ec00725dbd96ea381c373cdd05f1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:beeedbb442662e57d416641ecc3200b38e573c25b057896194468d05594dd835" "/opt/rustwide/cargo-home/bin/cargo" "+9e297bf54d31eb3b30067208ff9af4416945a2ed" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 22a02b1f319060eb142a9a6b7fd5bc296c7b9dea2bb6190361cb6735f20595eb
[INFO] running `Command { std: "docker" "start" "-a" "22a02b1f319060eb142a9a6b7fd5bc296c7b9dea2bb6190361cb6735f20595eb", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `Color`
[INFO] [stderr]  --> src/sphere.rs:3:30
[INFO] [stderr]   |
[INFO] [stderr] 3 | use super::vectors::{Point3, Color};
[INFO] [stderr]   |                              ^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::fmt::format`
[INFO] [stderr]  --> src/progress.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::fmt::format;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::image::VIEWPORT_HEIGHT`
[INFO] [stderr]  --> src/camera.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use crate::image::VIEWPORT_HEIGHT;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `stderr`
[INFO] [stderr]  --> src/camera.rs:9:33
[INFO] [stderr]   |
[INFO] [stderr] 9 | use std::io::{Write, BufWriter, stderr};
[INFO] [stderr]   |                                 ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::time::SystemTime`
[INFO] [stderr]   --> src/camera.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 | use std::time::SystemTime;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `for` iterator expression
[INFO] [stderr]   --> src/camera.rs:97:14
[INFO] [stderr]    |
[INFO] [stderr] 97 |     for j in (0..self.viewport_height) {
[INFO] [stderr]    |              ^                       ^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr] 97 -     for j in (0..self.viewport_height) {
[INFO] [stderr] 97 +     for j in 0..self.viewport_height {
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Hit`
[INFO] [stderr]   --> src/main.rs:11:16
[INFO] [stderr]    |
[INFO] [stderr] 11 | use material::{Hit, Diffuse, Metal};
[INFO] [stderr]    |                ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant `VIEWPORT_HEIGHT` is never used
[INFO] [stderr]  --> src/image.rs:4:11
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub const VIEWPORT_HEIGHT: f64 = 2.0;
[INFO] [stderr]   |           ^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Progress` is never constructed
[INFO] [stderr]  --> src/progress.rs:3:12
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub struct Progress {
[INFO] [stderr]   |            ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated items `new` and `update` are never used
[INFO] [stderr]   --> src/progress.rs:12:10
[INFO] [stderr]    |
[INFO] [stderr] 11 | impl Progress {
[INFO] [stderr]    | ------------- associated items in this implementation
[INFO] [stderr] 12 |   pub fn new(width: u64, height: u64) -> Progress {
[INFO] [stderr]    |          ^^^
[INFO] [stderr] ...
[INFO] [stderr] 26 |   pub fn update(&mut self, current: u64, time_taken: u64) -> String {
[INFO] [stderr]    |          ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field `focal_length` is never read
[INFO] [stderr]   --> src/camera.rs:19:3
[INFO] [stderr]    |
[INFO] [stderr] 14 | pub struct Camera {
[INFO] [stderr]    |            ------ field in this struct
[INFO] [stderr] ...
[INFO] [stderr] 19 |   focal_length: f64,
[INFO] [stderr]    |   ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Quality` is never constructed
[INFO] [stderr]   --> src/camera.rs:27:8
[INFO] [stderr]    |
[INFO] [stderr] 27 | struct Quality {
[INFO] [stderr]    |        ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `ray-tracing` (bin "ray-tracing" test) generated 12 warnings (run `cargo fix --bin "ray-tracing" --tests` to apply 7 suggestions)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/ray_tracing-47860c9dd2c436f2)
[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" "22a02b1f319060eb142a9a6b7fd5bc296c7b9dea2bb6190361cb6735f20595eb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "22a02b1f319060eb142a9a6b7fd5bc296c7b9dea2bb6190361cb6735f20595eb", kill_on_drop: false }`
[INFO] [stdout] 22a02b1f319060eb142a9a6b7fd5bc296c7b9dea2bb6190361cb6735f20595eb