[INFO] cloning repository https://github.com/leviathan88/ray_tracer
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/leviathan88/ray_tracer" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fleviathan88%2Fray_tracer", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fleviathan88%2Fray_tracer'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] bb18c665f678c99141053d2fbe5e3f8c38b881ca
[INFO] checking leviathan88/ray_tracer against master#a609fb45efad59dfd459c76e50899be9f0583b5a for pr-80579
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fleviathan88%2Fray_tracer" "/workspace/builds/worker-11/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-11/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/leviathan88/ray_tracer on toolchain a609fb45efad59dfd459c76e50899be9f0583b5a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/leviathan88/ray_tracer
[INFO] finished tweaking git repo https://github.com/leviathan88/ray_tracer
[INFO] tweaked toml for git repo https://github.com/leviathan88/ray_tracer written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] crate git repo https://github.com/leviathan88/ray_tracer already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4d3a0c27cbc9b1b05f2bb885468dec801e777c412efeeb8949f66b5149f20ce8
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "4d3a0c27cbc9b1b05f2bb885468dec801e777c412efeeb8949f66b5149f20ce8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4d3a0c27cbc9b1b05f2bb885468dec801e777c412efeeb8949f66b5149f20ce8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4d3a0c27cbc9b1b05f2bb885468dec801e777c412efeeb8949f66b5149f20ce8", kill_on_drop: false }`
[INFO] [stdout] 4d3a0c27cbc9b1b05f2bb885468dec801e777c412efeeb8949f66b5149f20ce8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ac2cd1248e16bb898db999d5b2c81e6d7a0cac97f1fa2c9f4567eafb5b0aabe6
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "ac2cd1248e16bb898db999d5b2c81e6d7a0cac97f1fa2c9f4567eafb5b0aabe6", kill_on_drop: false }`
[INFO] [stderr]     Checking ray_tracer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `super::*`
[INFO] [stdout]    --> src/tuples/mod.rs:161:9
[INFO] [stdout]     |
[INFO] [stdout] 161 |     use super::*;
[INFO] [stdout]     |         ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::*`
[INFO] [stdout]   --> src/utils/mod.rs:15:9
[INFO] [stdout]    |
[INFO] [stdout] 15 |     use super::*;
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::*`
[INFO] [stdout]    --> src/color/mod.rs:157:9
[INFO] [stdout]     |
[INFO] [stdout] 157 |     use super::*;
[INFO] [stdout]     |         ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::*`
[INFO] [stdout]   --> src/canvas/mod.rs:95:9
[INFO] [stdout]    |
[INFO] [stdout] 95 |     use super::*;
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::*`
[INFO] [stdout]   --> src/matrix/mod.rs:46:9
[INFO] [stdout]    |
[INFO] [stdout] 46 |     use super::*;
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `m`
[INFO] [stdout]   --> src/main.rs:37:9
[INFO] [stdout]    |
[INFO] [stdout] 37 |     let m = Matrix::construct_empty_3x3();
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_m`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_equal_to`
[INFO] [stdout]   --> src/tuples/mod.rs:60:12
[INFO] [stdout]    |
[INFO] [stdout] 60 |     pub fn is_equal_to(&self, tuple: &Tuple) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `negate`
[INFO] [stdout]   --> src/tuples/mod.rs:67:12
[INFO] [stdout]    |
[INFO] [stdout] 67 |     pub fn negate(&self) -> Self {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `calculate_dot_product`
[INFO] [stdout]   --> src/tuples/mod.rs:88:12
[INFO] [stdout]    |
[INFO] [stdout] 88 |     pub fn calculate_dot_product(&self, tuple: &Tuple) -> Float {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_vector_cross_product`
[INFO] [stdout]   --> src/tuples/mod.rs:92:12
[INFO] [stdout]    |
[INFO] [stdout] 92 |     pub fn get_vector_cross_product(&self, vector: &Tuple) -> Self {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `compare_floats_32`
[INFO] [stdout]  --> src/utils/mod.rs:8:12
[INFO] [stdout]   |
[INFO] [stdout] 8 |     pub fn compare_floats_32(a: f32, b: f32) -> bool {
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/color/mod.rs:20:12
[INFO] [stdout]    |
[INFO] [stdout] 20 |     pub fn new(red: ColorType, green: ColorType, blue: ColorType) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `to_ppm_value`
[INFO] [stdout]   --> src/color/mod.rs:28:8
[INFO] [stdout]    |
[INFO] [stdout] 28 |     fn to_ppm_value(value: ColorType) -> ColorType {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_equal_to`
[INFO] [stdout]   --> src/color/mod.rs:37:12
[INFO] [stdout]    |
[INFO] [stdout] 37 |     pub fn is_equal_to(self, other_color: Color) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `to_string`
[INFO] [stdout]   --> src/color/mod.rs:43:12
[INFO] [stdout]    |
[INFO] [stdout] 43 |     pub fn to_string(&self) -> String {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `red`
[INFO] [stdout]   --> src/color/mod.rs:58:12
[INFO] [stdout]    |
[INFO] [stdout] 58 |     pub fn red() -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `green`
[INFO] [stdout]   --> src/color/mod.rs:66:12
[INFO] [stdout]    |
[INFO] [stdout] 66 |     pub fn green() -> Self {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `blue`
[INFO] [stdout]   --> src/color/mod.rs:74:12
[INFO] [stdout]    |
[INFO] [stdout] 74 |     pub fn blue() -> Self {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `width`
[INFO] [stdout]  --> src/canvas/mod.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     width: Size,
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `height`
[INFO] [stdout]   --> src/canvas/mod.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     height: Size,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new_with_color`
[INFO] [stdout]   --> src/canvas/mod.rs:23:12
[INFO] [stdout]    |
[INFO] [stdout] 23 |     pub fn new_with_color(width: Size, height: Size, color: Color) -> Self {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_pixel_at`
[INFO] [stdout]   --> src/canvas/mod.rs:31:12
[INFO] [stdout]    |
[INFO] [stdout] 31 |     pub fn get_pixel_at(&self, x: Size, y: Size) -> Color {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `format_ppm_header`
[INFO] [stdout]   --> src/canvas/mod.rs:39:12
[INFO] [stdout]    |
[INFO] [stdout] 39 |     pub fn format_ppm_header(&self) -> String {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `format_ppm_data`
[INFO] [stdout]   --> src/canvas/mod.rs:43:12
[INFO] [stdout]    |
[INFO] [stdout] 43 |     pub fn format_ppm_data(&self) -> String {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `format_vector`
[INFO] [stdout]   --> src/canvas/mod.rs:54:8
[INFO] [stdout]    |
[INFO] [stdout] 54 |     fn format_vector(vec: Vec<String>) -> String {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `save_to_disk`
[INFO] [stdout]   --> src/canvas/mod.rs:80:12
[INFO] [stdout]    |
[INFO] [stdout] 80 |     pub fn save_to_disk(&self) -> std::io::Result<()> {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `construct_empty_4x4`
[INFO] [stdout]  --> src/matrix/mod.rs:8:12
[INFO] [stdout]   |
[INFO] [stdout] 8 |     pub fn construct_empty_4x4() -> MatrixType {
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `construct_empty_2x2`
[INFO] [stdout]   --> src/matrix/mod.rs:18:12
[INFO] [stdout]    |
[INFO] [stdout] 18 |     pub fn construct_empty_2x2() -> MatrixType {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `are_equal`
[INFO] [stdout]   --> src/matrix/mod.rs:23:12
[INFO] [stdout]    |
[INFO] [stdout] 23 |     pub fn are_equal(m1: &MatrixType, m2: &MatrixType) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `m`
[INFO] [stdout]   --> src/main.rs:37:9
[INFO] [stdout]    |
[INFO] [stdout] 37 |     let m = Matrix::construct_empty_3x3();
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_m`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `green`
[INFO] [stdout]   --> src/color/mod.rs:66:12
[INFO] [stdout]    |
[INFO] [stdout] 66 |     pub fn green() -> Self {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `blue`
[INFO] [stdout]   --> src/color/mod.rs:74:12
[INFO] [stdout]    |
[INFO] [stdout] 74 |     pub fn blue() -> Self {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `save_to_disk`
[INFO] [stdout]   --> src/canvas/mod.rs:80:12
[INFO] [stdout]    |
[INFO] [stdout] 80 |     pub fn save_to_disk(&self) -> std::io::Result<()> {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `construct_empty_2x2`
[INFO] [stdout]   --> src/matrix/mod.rs:18:12
[INFO] [stdout]    |
[INFO] [stdout] 18 |     pub fn construct_empty_2x2() -> MatrixType {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/canvas/mod.rs:86:9
[INFO] [stdout]    |
[INFO] [stdout] 86 |         file.write(header.as_bytes());
[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 `std::result::Result` that must be used
[INFO] [stdout]   --> src/canvas/mod.rs:87:9
[INFO] [stdout]    |
[INFO] [stdout] 87 |         file.write(data.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: 31 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/canvas/mod.rs:86:9
[INFO] [stdout]    |
[INFO] [stdout] 86 |         file.write(header.as_bytes());
[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 `std::result::Result` that must be used
[INFO] [stdout]   --> src/canvas/mod.rs:87:9
[INFO] [stdout]    |
[INFO] [stdout] 87 |         file.write(data.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: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.96s
[INFO] running `Command { std: "docker" "inspect" "ac2cd1248e16bb898db999d5b2c81e6d7a0cac97f1fa2c9f4567eafb5b0aabe6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ac2cd1248e16bb898db999d5b2c81e6d7a0cac97f1fa2c9f4567eafb5b0aabe6", kill_on_drop: false }`
[INFO] [stdout] ac2cd1248e16bb898db999d5b2c81e6d7a0cac97f1fa2c9f4567eafb5b0aabe6