[INFO] cloning repository https://github.com/tdejager/tinytracer
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tdejager/tinytracer" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftdejager%2Ftinytracer", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftdejager%2Ftinytracer'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 65fe48de3337c3c3bee6ced228a94fbf72e093a6
[INFO] testing tdejager/tinytracer against master#61223975d46f794466efa832bc7562b9707ecc46+rustflags=-Copt-level=3 for pr-121282
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftdejager%2Ftinytracer" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/tdejager/tinytracer on toolchain 61223975d46f794466efa832bc7562b9707ecc46
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+61223975d46f794466efa832bc7562b9707ecc46" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/tdejager/tinytracer
[INFO] finished tweaking git repo https://github.com/tdejager/tinytracer
[INFO] tweaked toml for git repo https://github.com/tdejager/tinytracer written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/tdejager/tinytracer 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" "+61223975d46f794466efa832bc7562b9707ecc46" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+61223975d46f794466efa832bc7562b9707ecc46" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2ee7105d65465f76b6660baa6d4d0b4cf0f527c375ee4254e8cc2436a373dba8
[INFO] running `Command { std: "docker" "start" "-a" "2ee7105d65465f76b6660baa6d4d0b4cf0f527c375ee4254e8cc2436a373dba8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2ee7105d65465f76b6660baa6d4d0b4cf0f527c375ee4254e8cc2436a373dba8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2ee7105d65465f76b6660baa6d4d0b4cf0f527c375ee4254e8cc2436a373dba8", kill_on_drop: false }`
[INFO] [stdout] 2ee7105d65465f76b6660baa6d4d0b4cf0f527c375ee4254e8cc2436a373dba8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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 -Copt-level=3" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+61223975d46f794466efa832bc7562b9707ecc46" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9e1a68cac1372eb31a7da15373c918f4b39f1e926cf298e3d1de79fd9573145a
[INFO] running `Command { std: "docker" "start" "-a" "9e1a68cac1372eb31a7da15373c918f4b39f1e926cf298e3d1de79fd9573145a", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.6
[INFO] [stderr]    Compiling byteorder v1.3.1
[INFO] [stderr]    Compiling tinytracer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `byteorder::ByteOrder`
[INFO] [stdout]  --> src/main.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use byteorder::ByteOrder;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `byteorder::NativeEndian`
[INFO] [stdout]  --> src/main.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use byteorder::NativeEndian;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::mem`
[INFO] [stdout]  --> src/main.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::mem;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around index expression
[INFO] [stdout]    --> src/main.rs:124:25
[INFO] [stdout]     |
[INFO] [stdout] 124 |             framebuffer[(i + j * WIDTH)] = Vec3 {
[INFO] [stdout]     |                         ^             ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 124 -             framebuffer[(i + j * WIDTH)] = Vec3 {
[INFO] [stdout] 124 +             framebuffer[i + j * WIDTH] = Vec3 {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `d2`
[INFO] [stdout]    --> src/main.rs:105:13
[INFO] [stdout]     |
[INFO] [stdout] 105 |         let d2 = L.dot(L) - tca*tca;
[INFO] [stdout]     |             ^^ help: if this is intentional, prefix it with an underscore: `_d2`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `t0`
[INFO] [stdout]    --> src/main.rs:102:66
[INFO] [stdout]     |
[INFO] [stdout] 102 |     pub fn ray_intersect(&self, orig: Vec3<f32>, dir: Vec3<f32>, t0: f32) -> bool {
[INFO] [stdout]     |                                                                  ^^ help: if this is intentional, prefix it with an underscore: `_t0`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `dot` is never used
[INFO] [stdout]   --> src/main.rs:41:12
[INFO] [stdout]    |
[INFO] [stdout] 40 | impl<T: Float> Vec3<T> {
[INFO] [stdout]    | ---------------------- method in this implementation
[INFO] [stdout] 41 |     pub fn dot(&self, other: Vec3<T>) -> T {
[INFO] [stdout]    |            ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Sphere` is never constructed
[INFO] [stdout]   --> src/main.rs:92:8
[INFO] [stdout]    |
[INFO] [stdout] 92 | struct Sphere {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Sphere` 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: associated items `new` and `ray_intersect` are never used
[INFO] [stdout]    --> src/main.rs:98:12
[INFO] [stdout]     |
[INFO] [stdout] 97  | impl Sphere {
[INFO] [stdout]     | ----------- associated items in this implementation
[INFO] [stdout] 98  |     pub fn new(center: Vec3<f32>, radius: f32) -> Sphere {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 102 |     pub fn ray_intersect(&self, orig: Vec3<f32>, dir: Vec3<f32>, t0: f32) -> bool {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `L` should have a snake case name
[INFO] [stdout]    --> src/main.rs:103:13
[INFO] [stdout]     |
[INFO] [stdout] 103 |         let L = self.center - orig;
[INFO] [stdout]     |             ^ help: convert the identifier to snake case: `l`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.09s
[INFO] running `Command { std: "docker" "inspect" "9e1a68cac1372eb31a7da15373c918f4b39f1e926cf298e3d1de79fd9573145a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9e1a68cac1372eb31a7da15373c918f4b39f1e926cf298e3d1de79fd9573145a", kill_on_drop: false }`
[INFO] [stdout] 9e1a68cac1372eb31a7da15373c918f4b39f1e926cf298e3d1de79fd9573145a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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 -Copt-level=3" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+61223975d46f794466efa832bc7562b9707ecc46" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 25d4893fe661ee709e8ad283cbfb0eff94c0cca7a1e4c227d654e789c79c613e
[INFO] running `Command { std: "docker" "start" "-a" "25d4893fe661ee709e8ad283cbfb0eff94c0cca7a1e4c227d654e789c79c613e", kill_on_drop: false }`
[INFO] [stderr]    Compiling tinytracer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `byteorder::ByteOrder`
[INFO] [stdout]  --> src/main.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use byteorder::ByteOrder;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `byteorder::NativeEndian`
[INFO] [stdout]  --> src/main.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use byteorder::NativeEndian;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::mem`
[INFO] [stdout]  --> src/main.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::mem;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around index expression
[INFO] [stdout]    --> src/main.rs:124:25
[INFO] [stdout]     |
[INFO] [stdout] 124 |             framebuffer[(i + j * WIDTH)] = Vec3 {
[INFO] [stdout]     |                         ^             ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 124 -             framebuffer[(i + j * WIDTH)] = Vec3 {
[INFO] [stdout] 124 +             framebuffer[i + j * WIDTH] = Vec3 {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `d2`
[INFO] [stdout]    --> src/main.rs:105:13
[INFO] [stdout]     |
[INFO] [stdout] 105 |         let d2 = L.dot(L) - tca*tca;
[INFO] [stdout]     |             ^^ help: if this is intentional, prefix it with an underscore: `_d2`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `t0`
[INFO] [stdout]    --> src/main.rs:102:66
[INFO] [stdout]     |
[INFO] [stdout] 102 |     pub fn ray_intersect(&self, orig: Vec3<f32>, dir: Vec3<f32>, t0: f32) -> bool {
[INFO] [stdout]     |                                                                  ^^ help: if this is intentional, prefix it with an underscore: `_t0`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `dot` is never used
[INFO] [stdout]   --> src/main.rs:41:12
[INFO] [stdout]    |
[INFO] [stdout] 40 | impl<T: Float> Vec3<T> {
[INFO] [stdout]    | ---------------------- method in this implementation
[INFO] [stdout] 41 |     pub fn dot(&self, other: Vec3<T>) -> T {
[INFO] [stdout]    |            ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Sphere` is never constructed
[INFO] [stdout]   --> src/main.rs:92:8
[INFO] [stdout]    |
[INFO] [stdout] 92 | struct Sphere {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Sphere` 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: associated items `new` and `ray_intersect` are never used
[INFO] [stdout]    --> src/main.rs:98:12
[INFO] [stdout]     |
[INFO] [stdout] 97  | impl Sphere {
[INFO] [stdout]     | ----------- associated items in this implementation
[INFO] [stdout] 98  |     pub fn new(center: Vec3<f32>, radius: f32) -> Sphere {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 102 |     pub fn ray_intersect(&self, orig: Vec3<f32>, dir: Vec3<f32>, t0: f32) -> bool {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `L` should have a snake case name
[INFO] [stdout]    --> src/main.rs:103:13
[INFO] [stdout]     |
[INFO] [stdout] 103 |         let L = self.center - orig;
[INFO] [stdout]     |             ^ help: convert the identifier to snake case: `l`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.20s
[INFO] running `Command { std: "docker" "inspect" "25d4893fe661ee709e8ad283cbfb0eff94c0cca7a1e4c227d654e789c79c613e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "25d4893fe661ee709e8ad283cbfb0eff94c0cca7a1e4c227d654e789c79c613e", kill_on_drop: false }`
[INFO] [stdout] 25d4893fe661ee709e8ad283cbfb0eff94c0cca7a1e4c227d654e789c79c613e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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 -Copt-level=3" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+61223975d46f794466efa832bc7562b9707ecc46" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 92543b4a54a1e9ffc7fb9db0b8544bf554facadee303ecc19a2fc3081a166080
[INFO] running `Command { std: "docker" "start" "-a" "92543b4a54a1e9ffc7fb9db0b8544bf554facadee303ecc19a2fc3081a166080", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `byteorder::ByteOrder`
[INFO] [stderr]  --> src/main.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use byteorder::ByteOrder;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `byteorder::NativeEndian`
[INFO] [stderr]  --> src/main.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use byteorder::NativeEndian;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::mem`
[INFO] [stderr]  --> src/main.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use std::mem;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around index expression
[INFO] [stderr]    --> src/main.rs:124:25
[INFO] [stderr]     |
[INFO] [stderr] 124 |             framebuffer[(i + j * WIDTH)] = Vec3 {
[INFO] [stderr]     |                         ^             ^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 124 -             framebuffer[(i + j * WIDTH)] = Vec3 {
[INFO] [stderr] 124 +             framebuffer[i + j * WIDTH] = Vec3 {
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `d2`
[INFO] [stderr]    --> src/main.rs:105:13
[INFO] [stderr]     |
[INFO] [stderr] 105 |         let d2 = L.dot(L) - tca*tca;
[INFO] [stderr]     |             ^^ help: if this is intentional, prefix it with an underscore: `_d2`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `t0`
[INFO] [stderr]    --> src/main.rs:102:66
[INFO] [stderr]     |
[INFO] [stderr] 102 |     pub fn ray_intersect(&self, orig: Vec3<f32>, dir: Vec3<f32>, t0: f32) -> bool {
[INFO] [stderr]     |                                                                  ^^ help: if this is intentional, prefix it with an underscore: `_t0`
[INFO] [stderr] 
[INFO] [stderr] warning: method `dot` is never used
[INFO] [stderr]   --> src/main.rs:41:12
[INFO] [stderr]    |
[INFO] [stderr] 40 | impl<T: Float> Vec3<T> {
[INFO] [stderr]    | ---------------------- method in this implementation
[INFO] [stderr] 41 |     pub fn dot(&self, other: Vec3<T>) -> T {
[INFO] [stderr]    |            ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Sphere` is never constructed
[INFO] [stderr]   --> src/main.rs:92:8
[INFO] [stderr]    |
[INFO] [stderr] 92 | struct Sphere {
[INFO] [stderr]    |        ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `Sphere` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: associated items `new` and `ray_intersect` are never used
[INFO] [stderr]    --> src/main.rs:98:12
[INFO] [stderr]     |
[INFO] [stderr] 97  | impl Sphere {
[INFO] [stderr]     | ----------- associated items in this implementation
[INFO] [stderr] 98  |     pub fn new(center: Vec3<f32>, radius: f32) -> Sphere {
[INFO] [stderr]     |            ^^^
[INFO] [stderr] ...
[INFO] [stderr] 102 |     pub fn ray_intersect(&self, orig: Vec3<f32>, dir: Vec3<f32>, t0: f32) -> bool {
[INFO] [stderr]     |            ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable `L` should have a snake case name
[INFO] [stderr]    --> src/main.rs:103:13
[INFO] [stderr]     |
[INFO] [stderr] 103 |         let L = self.center - orig;
[INFO] [stderr]     |             ^ help: convert the identifier to snake case: `l`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `tinytracer` (bin "tinytracer" test) generated 10 warnings (run `cargo fix --bin "tinytracer" --tests` to apply 4 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/tinytracer-08cb64c278fd5ded)
[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" "92543b4a54a1e9ffc7fb9db0b8544bf554facadee303ecc19a2fc3081a166080", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "92543b4a54a1e9ffc7fb9db0b8544bf554facadee303ecc19a2fc3081a166080", kill_on_drop: false }`
[INFO] [stdout] 92543b4a54a1e9ffc7fb9db0b8544bf554facadee303ecc19a2fc3081a166080