[INFO] cloning repository https://github.com/xeinherjar/rayray
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/xeinherjar/rayray" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxeinherjar%2Frayray", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxeinherjar%2Frayray'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 98959469f637dd8419ef044846e8e30a4bcec7fc
[INFO] testing xeinherjar/rayray against beta-2026-03-05 for beta-1.95-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxeinherjar%2Frayray" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/xeinherjar/rayray
[INFO] finished tweaking git repo https://github.com/xeinherjar/rayray
[INFO] tweaked toml for git repo https://github.com/xeinherjar/rayray written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/xeinherjar/rayray on toolchain beta-2026-03-05
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-03-05" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/xeinherjar/rayray 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" "+beta-2026-03-05" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-03-05" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2e57b8324e81dd3c8846fe2306843117d4bd599382b83b41f423cfabb29365a6
[INFO] running `Command { std: "docker" "start" "-a" "2e57b8324e81dd3c8846fe2306843117d4bd599382b83b41f423cfabb29365a6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2e57b8324e81dd3c8846fe2306843117d4bd599382b83b41f423cfabb29365a6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2e57b8324e81dd3c8846fe2306843117d4bd599382b83b41f423cfabb29365a6", kill_on_drop: false }`
[INFO] [stdout] 2e57b8324e81dd3c8846fe2306843117d4bd599382b83b41f423cfabb29365a6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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" "RUSTDOCFLAGS=--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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-03-05" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8c5ee531aedaa10dfcfc3544ab643aa6dfb2b4b1cb79e95a30e52ae7ab13d4a8
[INFO] running `Command { std: "docker" "start" "-a" "8c5ee531aedaa10dfcfc3544ab643aa6dfb2b4b1cb79e95a30e52ae7ab13d4a8", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stderr]    Compiling rayray v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Point3D`
[INFO] [stdout]  --> src/tuple3d.rs:3:15
[INFO] [stdout]   |
[INFO] [stdout] 3 | use point3d::{Point3D};
[INFO] [stdout]   |               ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Vector3D`
[INFO] [stdout]  --> src/tuple3d.rs:4:16
[INFO] [stdout]   |
[INFO] [stdout] 4 | use vector3d::{Vector3D};
[INFO] [stdout]   |                ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Read`
[INFO] [stdout]  --> src/canvas.rs:5:15
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::io::{Read, Write};
[INFO] [stdout]   |               ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::*`
[INFO] [stdout]   --> src/canvas.rs:95:9
[INFO] [stdout]    |
[INFO] [stdout] 95 |     use super::*;
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `idx`
[INFO] [stdout]   --> src/canvas.rs:60:14
[INFO] [stdout]    |
[INFO] [stdout] 60 |         for (idx, color) in self.canvas.iter().enumerate() {
[INFO] [stdout]    |              ^^^ help: if this is intentional, prefix it with an underscore: `_idx`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Point3D` is never constructed
[INFO] [stdout]  --> src/point3d.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct Point3D {
[INFO] [stdout]   |            ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/point3d.rs:14:12
[INFO] [stdout]    |
[INFO] [stdout] 13 | impl Point3D {
[INFO] [stdout]    | ------------ associated function in this implementation
[INFO] [stdout] 14 |     pub fn new(x: f64, y: f64, z: f64) -> Point3D {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Vector3D` is never constructed
[INFO] [stdout]  --> src/vector3d.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct Vector3D {
[INFO] [stdout]   |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `magnitude`, `normalize`, `dot`, and `cross` are never used
[INFO] [stdout]   --> src/vector3d.rs:14:12
[INFO] [stdout]    |
[INFO] [stdout] 13 | impl Vector3D {
[INFO] [stdout]    | ------------- associated items in this implementation
[INFO] [stdout] 14 |     pub fn new(x: f64, y: f64, z: f64) -> Vector3D {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 18 |     pub fn magnitude(&self) -> f64 {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 22 |     pub fn normalize(&self) -> Vector3D {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 27 |     pub fn dot(&self, other: Vector3D) -> f64 {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 31 |     pub fn cross(&self, other: Vector3D) -> Vector3D {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Tuple3D` is never constructed
[INFO] [stdout]  --> src/tuple3d.rs:7:12
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub struct Tuple3D {
[INFO] [stdout]   |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `magnitude`, `normalize`, and `dot` are never used
[INFO] [stdout]   --> src/tuple3d.rs:15:12
[INFO] [stdout]    |
[INFO] [stdout] 14 | impl Tuple3D {
[INFO] [stdout]    | ------------ associated items in this implementation
[INFO] [stdout] 15 |     pub fn new(x: f64, y: f64, z: f64, w: f64) -> Tuple3D {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 19 |     fn magnitude(&self) -> f64 {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 23 |     fn normalize(&self) -> Tuple3D {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 28 |     fn dot(&self, other: Tuple3D) -> f64 {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Color` is never constructed
[INFO] [stdout]  --> src/color.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct Color {
[INFO] [stdout]   |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/color.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | impl Color {
[INFO] [stdout]    | ---------- associated function in this implementation
[INFO] [stdout] 12 |     pub fn new(r: f64, g: f64, b: f64) -> Color {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Canvas` is never constructed
[INFO] [stdout]  --> src/canvas.rs:8:12
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub struct Canvas {
[INFO] [stdout]   |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `get`, `put`, and `save_ppm` are never used
[INFO] [stdout]   --> src/canvas.rs:15:12
[INFO] [stdout]    |
[INFO] [stdout] 14 | impl Canvas {
[INFO] [stdout]    | ----------- associated items in this implementation
[INFO] [stdout] 15 |     pub fn new(width: u64, height: u64) -> Canvas {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 20 |     pub fn get(self, x: u64, y: u64) -> Color {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 25 |     pub fn put(&mut self, x: u64, y: u64, color: Color) -> () {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 30 |     pub fn save_ppm(self, path: String) -> () {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.36s
[INFO] running `Command { std: "docker" "inspect" "8c5ee531aedaa10dfcfc3544ab643aa6dfb2b4b1cb79e95a30e52ae7ab13d4a8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8c5ee531aedaa10dfcfc3544ab643aa6dfb2b4b1cb79e95a30e52ae7ab13d4a8", kill_on_drop: false }`
[INFO] [stdout] 8c5ee531aedaa10dfcfc3544ab643aa6dfb2b4b1cb79e95a30e52ae7ab13d4a8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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" "RUSTDOCFLAGS=--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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-03-05" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7f61527d955d347c9c972f4878d7c23dffdaa18c545bc183bcea8977caa6f5f3
[INFO] running `Command { std: "docker" "start" "-a" "7f61527d955d347c9c972f4878d7c23dffdaa18c545bc183bcea8977caa6f5f3", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stderr]    Compiling rayray v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Point3D`
[INFO] [stdout]  --> src/tuple3d.rs:3:15
[INFO] [stdout]   |
[INFO] [stdout] 3 | use point3d::{Point3D};
[INFO] [stdout]   |               ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Vector3D`
[INFO] [stdout]  --> src/tuple3d.rs:4:16
[INFO] [stdout]   |
[INFO] [stdout] 4 | use vector3d::{Vector3D};
[INFO] [stdout]   |                ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Read`
[INFO] [stdout]  --> src/canvas.rs:5:15
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::io::{Read, Write};
[INFO] [stdout]   |               ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `idx`
[INFO] [stdout]   --> src/canvas.rs:60:14
[INFO] [stdout]    |
[INFO] [stdout] 60 |         for (idx, color) in self.canvas.iter().enumerate() {
[INFO] [stdout]    |              ^^^ help: if this is intentional, prefix it with an underscore: `_idx`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `w` is never read
[INFO] [stdout]   --> src/point3d.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout]  6 | pub struct Point3D {
[INFO] [stdout]    |            ------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 10 |     pub w: f64,
[INFO] [stdout]    |         ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Point3D` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `w` is never read
[INFO] [stdout]   --> src/vector3d.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout]  6 | pub struct Vector3D {
[INFO] [stdout]    |            -------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 10 |     pub w: f64,
[INFO] [stdout]    |         ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Vector3D` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `magnitude` and `normalize` are never used
[INFO] [stdout]   --> src/tuple3d.rs:19:8
[INFO] [stdout]    |
[INFO] [stdout] 14 | impl Tuple3D {
[INFO] [stdout]    | ------------ methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 19 |     fn magnitude(&self) -> f64 {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 23 |     fn normalize(&self) -> Tuple3D {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.47s
[INFO] running `Command { std: "docker" "inspect" "7f61527d955d347c9c972f4878d7c23dffdaa18c545bc183bcea8977caa6f5f3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7f61527d955d347c9c972f4878d7c23dffdaa18c545bc183bcea8977caa6f5f3", kill_on_drop: false }`
[INFO] [stdout] 7f61527d955d347c9c972f4878d7c23dffdaa18c545bc183bcea8977caa6f5f3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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" "RUSTDOCFLAGS=--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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-03-05" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] eca29aabb631570a4436ee11b0adc15e340fd472f19aa5e272dd72d22f6406d2
[INFO] running `Command { std: "docker" "start" "-a" "eca29aabb631570a4436ee11b0adc15e340fd472f19aa5e272dd72d22f6406d2", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stderr] warning: unused import: `Point3D`
[INFO] [stderr]  --> src/tuple3d.rs:3:15
[INFO] [stderr]   |
[INFO] [stderr] 3 | use point3d::{Point3D};
[INFO] [stderr]   |               ^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Vector3D`
[INFO] [stderr]  --> src/tuple3d.rs:4:16
[INFO] [stderr]   |
[INFO] [stderr] 4 | use vector3d::{Vector3D};
[INFO] [stderr]   |                ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Read`
[INFO] [stderr]  --> src/canvas.rs:5:15
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::io::{Read, Write};
[INFO] [stderr]   |               ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `idx`
[INFO] [stderr]   --> src/canvas.rs:60:14
[INFO] [stderr]    |
[INFO] [stderr] 60 |         for (idx, color) in self.canvas.iter().enumerate() {
[INFO] [stderr]    |              ^^^ help: if this is intentional, prefix it with an underscore: `_idx`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field `w` is never read
[INFO] [stderr]   --> src/point3d.rs:10:9
[INFO] [stderr]    |
[INFO] [stderr]  6 | pub struct Point3D {
[INFO] [stderr]    |            ------- field in this struct
[INFO] [stderr] ...
[INFO] [stderr] 10 |     pub w: f64,
[INFO] [stderr]    |         ^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `Point3D` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field `w` is never read
[INFO] [stderr]   --> src/vector3d.rs:10:9
[INFO] [stderr]    |
[INFO] [stderr]  6 | pub struct Vector3D {
[INFO] [stderr]    |            -------- field in this struct
[INFO] [stderr] ...
[INFO] [stderr] 10 |     pub w: f64,
[INFO] [stderr]    |         ^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `Vector3D` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: methods `magnitude` and `normalize` are never used
[INFO] [stderr]   --> src/tuple3d.rs:19:8
[INFO] [stderr]    |
[INFO] [stderr] 14 | impl Tuple3D {
[INFO] [stderr]    | ------------ methods in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 19 |     fn magnitude(&self) -> f64 {
[INFO] [stderr]    |        ^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 23 |     fn normalize(&self) -> Tuple3D {
[INFO] [stderr]    |        ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `rayray` (bin "rayray" test) generated 7 warnings (run `cargo fix --bin "rayray" -p rayray --tests` to apply 4 suggestions)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/rayray-df3b1bb4754d525f)
[INFO] [stdout] 
[INFO] [stdout] running 33 tests
[INFO] [stdout] test color::tests::color_mul_color ... ok
[INFO] [stdout] test canvas::teets::color_get ... ok
[INFO] [stdout] test color::tests::color_plus_color ... ok
[INFO] [stdout] test canvas::teets::color_put ... ok
[INFO] [stdout] test color::tests::colors_are_equal ... ok
[INFO] [stdout] test color::tests::color_sub_color ... ok
[INFO] [stdout] test point3d::tests::point_minus_vector ... ok
[INFO] [stdout] test point3d::tests::point_plus_vector ... ok
[INFO] [stdout] test point3d::tests::points_are_equal ... ok
[INFO] [stdout] test point3d::tests::point_minus_point ... ok
[INFO] [stdout] test tuple3d::tests::tuple_dot_product ... ok
[INFO] [stdout] test tuple3d::tests::tuple_mul_scaler ... ok
[INFO] [stdout] test tuple3d::tests::tuple_mul_scaler_fraction ... ok
[INFO] [stdout] test tuple3d::tests::tuple_negate ... ok
[INFO] [stdout] test tuple3d::tests::tuples_are_equal ... ok
[INFO] [stdout] test tuple3d::tests::tuple_plus_tuple ... ok
[INFO] [stdout] test vector3d::tests::vector_cross_product ... ok
[INFO] [stdout] test vector3d::tests::vector_dot_product ... ok
[INFO] [stdout] test vector3d::tests::vector_magnitude ... ok
[INFO] [stdout] test vector3d::tests::vector_magnitude_neg ... ok
[INFO] [stdout] test vector3d::tests::vector_magnitude_x ... ok
[INFO] [stdout] test vector3d::tests::vector_magnitude_y ... ok
[INFO] [stdout] test vector3d::tests::vector_minus_vector ... ok
[INFO] [stdout] test vector3d::tests::vector_negate ... ok
[INFO] [stdout] test vector3d::tests::vector_normalize_to_unit ... ok
[INFO] [stdout] test vector3d::tests::vector_plus_vector ... ok
[INFO] [stdout] test vector3d::tests::vector_plus_point ... ok
[INFO] [stdout] test vector3d::tests::vectors_are_equal ... ok
[INFO] [stdout] test vector3d::tests::vector_normalize ... ok
[INFO] [stdout] test color::tests::color_mul_scaler ... ok
[INFO] [stdout] test vector3d::tests::vector_magnitude_z ... ok
[INFO] [stdout] test tuple3d::tests::tuple_div_scaler ... ok
[INFO] [stdout] test canvas::teets::save_ppm ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- canvas::teets::save_ppm stdout ----
[INFO] [stdout] 
[INFO] [stdout] thread 'canvas::teets::save_ppm' (26) panicked at src/canvas.rs:87:25:
[INFO] [stdout] called `Result::unwrap()` on an `Err` value: Os { code: 30, kind: ReadOnlyFilesystem, message: "Read-only file system" }
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x62af21fa7b8a - std[b80a194dd3c418bb]::backtrace_rs::backtrace::libunwind::trace
[INFO] [stdout]                                at /rustc/ad726b5063362ec9897ef3d67452fc5606ee70fa/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stdout]    1:     0x62af21fa7b8a - std[b80a194dd3c418bb]::backtrace_rs::backtrace::trace_unsynchronized::<std[b80a194dd3c418bb]::sys::backtrace::_print_fmt::{closure#1}>
[INFO] [stdout]                                at /rustc/ad726b5063362ec9897ef3d67452fc5606ee70fa/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stdout]    2:     0x62af21fa7b8a - std[b80a194dd3c418bb]::sys::backtrace::_print_fmt
[INFO] [stdout]                                at /rustc/ad726b5063362ec9897ef3d67452fc5606ee70fa/library/std/src/sys/backtrace.rs:74:9
[INFO] [stdout]    3:     0x62af21fa7b8a - <<std[b80a194dd3c418bb]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[10b6fa85044e1869]::fmt::Display>::fmt
[INFO] [stdout]                                at /rustc/ad726b5063362ec9897ef3d67452fc5606ee70fa/library/std/src/sys/backtrace.rs:44:26
[INFO] [stdout]    4:     0x62af21fbbeba - <core[10b6fa85044e1869]::fmt::rt::Argument>::fmt
[INFO] [stdout]                                at /rustc/ad726b5063362ec9897ef3d67452fc5606ee70fa/library/core/src/fmt/rt.rs:152:76
[INFO] [stdout]    5:     0x62af21fbbeba - core[10b6fa85044e1869]::fmt::write
[INFO] [stdout]    6:     0x62af21fac412 - std[b80a194dd3c418bb]::io::default_write_fmt::<alloc[dd269455e567d8e9]::vec::Vec<u8>>
[INFO] [stdout]                                at /rustc/ad726b5063362ec9897ef3d67452fc5606ee70fa/library/std/src/io/mod.rs:639:11
[INFO] [stdout]    7:     0x62af21fac412 - <alloc[dd269455e567d8e9]::vec::Vec<u8> as std[b80a194dd3c418bb]::io::Write>::write_fmt
[INFO] [stdout]                                at /rustc/ad726b5063362ec9897ef3d67452fc5606ee70fa/library/std/src/io/mod.rs:1994:13
[INFO] [stdout]    8:     0x62af21f86d9f - <std[b80a194dd3c418bb]::sys::backtrace::BacktraceLock>::print
[INFO] [stdout]                                at /rustc/ad726b5063362ec9897ef3d67452fc5606ee70fa/library/std/src/sys/backtrace.rs:47:9
[INFO] [stdout]    9:     0x62af21f86d9f - std[b80a194dd3c418bb]::panicking::default_hook::{closure#0}
[INFO] [stdout]                                at /rustc/ad726b5063362ec9897ef3d67452fc5606ee70fa/library/std/src/panicking.rs:292:27
[INFO] [stdout]   10:     0x62af21fa00f9 - std[b80a194dd3c418bb]::panicking::default_hook
[INFO] [stdout]                                at /rustc/ad726b5063362ec9897ef3d67452fc5606ee70fa/library/std/src/panicking.rs:316:9
[INFO] [stdout]   11:     0x62af21f3d15c - <alloc[dd269455e567d8e9]::boxed::Box<dyn for<'a, 'b> core[10b6fa85044e1869]::ops::function::Fn<(&'a std[b80a194dd3c418bb]::panic::PanicHookInfo<'b>,), Output = ()> + core[10b6fa85044e1869]::marker::Sync + core[10b6fa85044e1869]::marker::Send> as core[10b6fa85044e1869]::ops::function::Fn<(&std[b80a194dd3c418bb]::panic::PanicHookInfo,)>>::call
[INFO] [stdout]                                at /rustc/ad726b5063362ec9897ef3d67452fc5606ee70fa/library/alloc/src/boxed.rs:2254:9
[INFO] [stdout]   12:     0x62af21f3d15c - test[826cbc6ef54ab466]::test_main_with_exit_callback::<test[826cbc6ef54ab466]::test_main::{closure#0}>::{closure#0}
[INFO] [stdout]                                at /rustc/ad726b5063362ec9897ef3d67452fc5606ee70fa/library/test/src/lib.rs:145:21
[INFO] [stdout]   13:     0x62af21fa02b2 - <alloc[dd269455e567d8e9]::boxed::Box<dyn for<'a, 'b> core[10b6fa85044e1869]::ops::function::Fn<(&'a std[b80a194dd3c418bb]::panic::PanicHookInfo<'b>,), Output = ()> + core[10b6fa85044e1869]::marker::Sync + core[10b6fa85044e1869]::marker::Send> as core[10b6fa85044e1869]::ops::function::Fn<(&std[b80a194dd3c418bb]::panic::PanicHookInfo,)>>::call
[INFO] [stdout]                                at /rustc/ad726b5063362ec9897ef3d67452fc5606ee70fa/library/alloc/src/boxed.rs:2254:9
[INFO] [stdout]   14:     0x62af21fa02b2 - std[b80a194dd3c418bb]::panicking::panic_with_hook
[INFO] [stdout]                                at /rustc/ad726b5063362ec9897ef3d67452fc5606ee70fa/library/std/src/panicking.rs:833:13
[INFO] [stdout]   15:     0x62af21f86e58 - std[b80a194dd3c418bb]::panicking::panic_handler::{closure#0}
[INFO] [stdout]                                at /rustc/ad726b5063362ec9897ef3d67452fc5606ee70fa/library/std/src/panicking.rs:698:13
[INFO] [stdout]   16:     0x62af21f7e7f9 - std[b80a194dd3c418bb]::sys::backtrace::__rust_end_short_backtrace::<std[b80a194dd3c418bb]::panicking::panic_handler::{closure#0}, !>
[INFO] [stdout]                                at /rustc/ad726b5063362ec9897ef3d67452fc5606ee70fa/library/std/src/sys/backtrace.rs:182:18
[INFO] [stdout]   17:     0x62af21f87b6d - __rustc[9698a3e60dd14283]::rust_begin_unwind
[INFO] [stdout]                                at /rustc/ad726b5063362ec9897ef3d67452fc5606ee70fa/library/std/src/panicking.rs:689:5
[INFO] [stdout]   18:     0x62af21fbc6cc - core[10b6fa85044e1869]::panicking::panic_fmt
[INFO] [stdout]                                at /rustc/ad726b5063362ec9897ef3d67452fc5606ee70fa/library/core/src/panicking.rs:80:14
[INFO] [stdout]   19:     0x62af21fbc4a2 - core[10b6fa85044e1869]::result::unwrap_failed
[INFO] [stdout]                                at /rustc/ad726b5063362ec9897ef3d67452fc5606ee70fa/library/core/src/result.rs:1867:5
[INFO] [stdout]   20:     0x62af21f3038e - core::result::Result<T,E>::unwrap::h3c9d7b8c643fd722
[INFO] [stdout]                                at /rustc/ad726b5063362ec9897ef3d67452fc5606ee70fa/library/core/src/result.rs:1233:23
[INFO] [stdout]   21:     0x62af21f3038e - rayray::canvas::Canvas::save_ppm::h7b7fa42e684344da
[INFO] [stdout]                                at /opt/rustwide/workdir/src/canvas.rs:87:25
[INFO] [stdout]   22:     0x62af21f2f934 - rayray::canvas::teets::save_ppm::h1d07fce31fd8cdfc
[INFO] [stdout]                                at /opt/rustwide/workdir/src/canvas.rs:124:13
[INFO] [stdout]   23:     0x62af21f2f997 - rayray::canvas::teets::save_ppm::{{closure}}::h8bcd3838774f41b3
[INFO] [stdout]                                at /opt/rustwide/workdir/src/canvas.rs:115:18
[INFO] [stdout]   24:     0x62af21f2da76 - core::ops::function::FnOnce::call_once::haac9e6e90054c4ce
[INFO] [stdout]                                at /rustc/ad726b5063362ec9897ef3d67452fc5606ee70fa/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   25:     0x62af21f3123b - <fn() -> core[10b6fa85044e1869]::result::Result<(), alloc[dd269455e567d8e9]::string::String> as core[10b6fa85044e1869]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/ad726b5063362ec9897ef3d67452fc5606ee70fa/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   26:     0x62af21f3123b - test[826cbc6ef54ab466]::__rust_begin_short_backtrace::<core[10b6fa85044e1869]::result::Result<(), alloc[dd269455e567d8e9]::string::String>, fn() -> core[10b6fa85044e1869]::result::Result<(), alloc[dd269455e567d8e9]::string::String>>
[INFO] [stdout]                                at /rustc/ad726b5063362ec9897ef3d67452fc5606ee70fa/library/test/src/lib.rs:663:18
[INFO] [stdout]   27:     0x62af21f3dc2b - test[826cbc6ef54ab466]::run_test_in_process::{closure#0}
[INFO] [stdout]                                at /rustc/ad726b5063362ec9897ef3d67452fc5606ee70fa/library/test/src/lib.rs:686:74
[INFO] [stdout]   28:     0x62af21f3dc2b - <core[10b6fa85044e1869]::panic::unwind_safe::AssertUnwindSafe<test[826cbc6ef54ab466]::run_test_in_process::{closure#0}> as core[10b6fa85044e1869]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/ad726b5063362ec9897ef3d67452fc5606ee70fa/library/core/src/panic/unwind_safe.rs:274:9
[INFO] [stdout]   29:     0x62af21f3dc2b - std[b80a194dd3c418bb]::panicking::catch_unwind::do_call::<core[10b6fa85044e1869]::panic::unwind_safe::AssertUnwindSafe<test[826cbc6ef54ab466]::run_test_in_process::{closure#0}>, core[10b6fa85044e1869]::result::Result<(), alloc[dd269455e567d8e9]::string::String>>
[INFO] [stdout]                                at /rustc/ad726b5063362ec9897ef3d67452fc5606ee70fa/library/std/src/panicking.rs:581:40
[INFO] [stdout]   30:     0x62af21f3dc2b - std[b80a194dd3c418bb]::panicking::catch_unwind::<core[10b6fa85044e1869]::result::Result<(), alloc[dd269455e567d8e9]::string::String>, core[10b6fa85044e1869]::panic::unwind_safe::AssertUnwindSafe<test[826cbc6ef54ab466]::run_test_in_process::{closure#0}>>
[INFO] [stdout]                                at /rustc/ad726b5063362ec9897ef3d67452fc5606ee70fa/library/std/src/panicking.rs:544:19
[INFO] [stdout]   31:     0x62af21f3dc2b - std[b80a194dd3c418bb]::panic::catch_unwind::<core[10b6fa85044e1869]::panic::unwind_safe::AssertUnwindSafe<test[826cbc6ef54ab466]::run_test_in_process::{closure#0}>, core[10b6fa85044e1869]::result::Result<(), alloc[dd269455e567d8e9]::string::String>>
[INFO] [stdout]                                at /rustc/ad726b5063362ec9897ef3d67452fc5606ee70fa/library/std/src/panic.rs:359:14
[INFO] [stdout]   32:     0x62af21f3dc2b - test[826cbc6ef54ab466]::run_test_in_process
[INFO] [stdout]                                at /rustc/ad726b5063362ec9897ef3d67452fc5606ee70fa/library/test/src/lib.rs:686:27
[INFO] [stdout]   33:     0x62af21f3dc2b - test[826cbc6ef54ab466]::run_test::{closure#0}
[INFO] [stdout]                                at /rustc/ad726b5063362ec9897ef3d67452fc5606ee70fa/library/test/src/lib.rs:607:43
[INFO] [stdout]   34:     0x62af21f39344 - test[826cbc6ef54ab466]::run_test::{closure#1}
[INFO] [stdout]                                at /rustc/ad726b5063362ec9897ef3d67452fc5606ee70fa/library/test/src/lib.rs:637:41
[INFO] [stdout]   35:     0x62af21f39344 - std[b80a194dd3c418bb]::sys::backtrace::__rust_begin_short_backtrace::<test[826cbc6ef54ab466]::run_test::{closure#1}, ()>
[INFO] [stdout]                                at /rustc/ad726b5063362ec9897ef3d67452fc5606ee70fa/library/std/src/sys/backtrace.rs:166:18
[INFO] [stdout]   36:     0x62af21f40832 - std[b80a194dd3c418bb]::thread::lifecycle::spawn_unchecked::<test[826cbc6ef54ab466]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}
[INFO] [stdout]                                at /rustc/ad726b5063362ec9897ef3d67452fc5606ee70fa/library/std/src/thread/lifecycle.rs:91:13
[INFO] [stdout]   37:     0x62af21f40832 - <core[10b6fa85044e1869]::panic::unwind_safe::AssertUnwindSafe<std[b80a194dd3c418bb]::thread::lifecycle::spawn_unchecked<test[826cbc6ef54ab466]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}> as core[10b6fa85044e1869]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/ad726b5063362ec9897ef3d67452fc5606ee70fa/library/core/src/panic/unwind_safe.rs:274:9
[INFO] [stdout]   38:     0x62af21f40832 - std[b80a194dd3c418bb]::panicking::catch_unwind::do_call::<core[10b6fa85044e1869]::panic::unwind_safe::AssertUnwindSafe<std[b80a194dd3c418bb]::thread::lifecycle::spawn_unchecked<test[826cbc6ef54ab466]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>, ()>
[INFO] [stdout]                                at /rustc/ad726b5063362ec9897ef3d67452fc5606ee70fa/library/std/src/panicking.rs:581:40
[INFO] [stdout]   39:     0x62af21f40832 - std[b80a194dd3c418bb]::panicking::catch_unwind::<(), core[10b6fa85044e1869]::panic::unwind_safe::AssertUnwindSafe<std[b80a194dd3c418bb]::thread::lifecycle::spawn_unchecked<test[826cbc6ef54ab466]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>>
[INFO] [stdout]                                at /rustc/ad726b5063362ec9897ef3d67452fc5606ee70fa/library/std/src/panicking.rs:544:19
[INFO] [stdout]   40:     0x62af21f40832 - std[b80a194dd3c418bb]::panic::catch_unwind::<core[10b6fa85044e1869]::panic::unwind_safe::AssertUnwindSafe<std[b80a194dd3c418bb]::thread::lifecycle::spawn_unchecked<test[826cbc6ef54ab466]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>, ()>
[INFO] [stdout]                                at /rustc/ad726b5063362ec9897ef3d67452fc5606ee70fa/library/std/src/panic.rs:359:14
[INFO] [stdout]   41:     0x62af21f40832 - std[b80a194dd3c418bb]::thread::lifecycle::spawn_unchecked::<test[826cbc6ef54ab466]::run_test::{closure#1}, ()>::{closure#1}
[INFO] [stdout]                                at /rustc/ad726b5063362ec9897ef3d67452fc5606ee70fa/library/std/src/thread/lifecycle.rs:89:26
[INFO] [stdout]   42:     0x62af21f40832 - <std[b80a194dd3c418bb]::thread::lifecycle::spawn_unchecked<test[826cbc6ef54ab466]::run_test::{closure#1}, ()>::{closure#1} as core[10b6fa85044e1869]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
[INFO] [stdout]                                at /rustc/ad726b5063362ec9897ef3d67452fc5606ee70fa/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   43:     0x62af21fa749f - <alloc[dd269455e567d8e9]::boxed::Box<dyn core[10b6fa85044e1869]::ops::function::FnOnce<(), Output = ()> + core[10b6fa85044e1869]::marker::Send> as core[10b6fa85044e1869]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/ad726b5063362ec9897ef3d67452fc5606ee70fa/library/alloc/src/boxed.rs:2240:9
[INFO] [stdout]   44:     0x62af21fa749f - <std[b80a194dd3c418bb]::sys::thread::unix::Thread>::new::thread_start
[INFO] [stdout]                                at /rustc/ad726b5063362ec9897ef3d67452fc5606ee70fa/library/std/src/sys/thread/unix.rs:118:17
[INFO] [stdout]   45:     0x7ff29b5c1aa4 - <unknown>
[INFO] [stdout]   46:     0x7ff29b64ea64 - clone
[INFO] [stdout]   47:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     canvas::teets::save_ppm
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 32 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.03s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass `--bin rayray`
[INFO] running `Command { std: "docker" "inspect" "eca29aabb631570a4436ee11b0adc15e340fd472f19aa5e272dd72d22f6406d2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eca29aabb631570a4436ee11b0adc15e340fd472f19aa5e272dd72d22f6406d2", kill_on_drop: false }`
[INFO] [stdout] eca29aabb631570a4436ee11b0adc15e340fd472f19aa5e272dd72d22f6406d2
