[INFO] updating cached repository https://github.com/fredrikln/the-raytracer-challenge
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 0f416cb2ad3569af0dbcaf40a574d52454b0c2b4
[INFO] checking fredrikln/the-raytracer-challenge against master#fdc0011561c6365c596dfd8fa1ef388162bc89c7 for pr-66504-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffredrikln%2Fthe-raytracer-challenge" "/workspace/builds/worker-7/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/fredrikln/the-raytracer-challenge on toolchain fdc0011561c6365c596dfd8fa1ef388162bc89c7
[INFO] running `"/workspace/cargo-home/bin/cargo" "+fdc0011561c6365c596dfd8fa1ef388162bc89c7" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/fredrikln/the-raytracer-challenge
[INFO] finished tweaking git repo https://github.com/fredrikln/the-raytracer-challenge
[INFO] tweaked toml for git repo https://github.com/fredrikln/the-raytracer-challenge written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/fredrikln/the-raytracer-challenge already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+fdc0011561c6365c596dfd8fa1ef388162bc89c7" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+fdc0011561c6365c596dfd8fa1ef388162bc89c7" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] a462f8d880fb8861a3161303a21c83cd271c9625e734a9f6a08879000d37c8a5
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "a462f8d880fb8861a3161303a21c83cd271c9625e734a9f6a08879000d37c8a5"`
[INFO] [stderr]    Compiling num-traits v0.2.9
[INFO] [stderr]     Checking png v0.15.0
[INFO] [stderr]     Checking jpeg-decoder v0.1.16
[INFO] [stderr]     Checking num-integer v0.1.41
[INFO] [stderr]     Checking tiff v0.3.1
[INFO] [stderr]     Checking num-iter v0.1.39
[INFO] [stderr]     Checking num-rational v0.2.2
[INFO] [stderr]     Checking image v0.22.3
[INFO] [stderr]     Checking raytracer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `vector::Vector`
[INFO] [stderr]  --> src/main.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | use vector::Vector;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `vector::Vector`
[INFO] [stderr]  --> src/main.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | use vector::Vector;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `magnitude`
[INFO] [stderr]   --> src/vector.rs:12:3
[INFO] [stderr]    |
[INFO] [stderr] 12 |   pub fn magnitude(&self) -> f32 {
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `normalize`
[INFO] [stderr]   --> src/vector.rs:16:3
[INFO] [stderr]    |
[INFO] [stderr] 16 |   pub fn normalize(&self) -> Vector {
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `dot`
[INFO] [stderr]   --> src/vector.rs:25:3
[INFO] [stderr]    |
[INFO] [stderr] 25 |   pub fn dot(&self, other: &Self) -> f32 {
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `cross`
[INFO] [stderr]   --> src/vector.rs:29:3
[INFO] [stderr]    |
[INFO] [stderr] 29 |   pub fn cross(&self, other: &Self) -> Vector {
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get_pixel`
[INFO] [stderr]   --> src/canvas.rs:96:3
[INFO] [stderr]    |
[INFO] [stderr] 96 |   pub fn get_pixel(&self, x: u32, y: u32) -> Color {
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `identity`
[INFO] [stderr]   --> src/matrix.rs:23:3
[INFO] [stderr]    |
[INFO] [stderr] 23 |   pub fn identity() -> Matrix {
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `transpose`
[INFO] [stderr]   --> src/matrix.rs:34:3
[INFO] [stderr]    |
[INFO] [stderr] 34 |   pub fn transpose(&self) -> Matrix {
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `cofactor`
[INFO] [stderr]   --> src/matrix.rs:46:3
[INFO] [stderr]    |
[INFO] [stderr] 46 |   pub fn cofactor(&self, row: usize, col: usize) -> f32 {
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `determinant`
[INFO] [stderr]   --> src/matrix.rs:50:3
[INFO] [stderr]    |
[INFO] [stderr] 50 |   pub fn determinant(&self) -> f32 {
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `invertible`
[INFO] [stderr]   --> src/matrix.rs:54:3
[INFO] [stderr]    |
[INFO] [stderr] 54 |   pub fn invertible(&self) -> bool {
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `inverse`
[INFO] [stderr]   --> src/matrix.rs:58:3
[INFO] [stderr]    |
[INFO] [stderr] 58 |   pub fn inverse(&self) -> Option<Matrix> {
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `scale`
[INFO] [stderr]   --> src/matrix.rs:75:3
[INFO] [stderr]    |
[INFO] [stderr] 75 |   pub fn scale(x: f32, y: f32, z: f32) -> Matrix {
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `scale_linear`
[INFO] [stderr]   --> src/matrix.rs:86:3
[INFO] [stderr]    |
[INFO] [stderr] 86 |   pub fn scale_linear(i: f32) -> Matrix {
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `rotate_x`
[INFO] [stderr]   --> src/matrix.rs:90:3
[INFO] [stderr]    |
[INFO] [stderr] 90 |   pub fn rotate_x(r: f32) -> Matrix {
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `rotate_y`
[INFO] [stderr]    --> src/matrix.rs:101:3
[INFO] [stderr]     |
[INFO] [stderr] 101 |   pub fn rotate_y(r: f32) -> Matrix {
[INFO] [stderr]     |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `shear`
[INFO] [stderr]    --> src/matrix.rs:123:3
[INFO] [stderr]     |
[INFO] [stderr] 123 |   pub fn shear(xy: f32, xz: f32, yx: f32, yz: f32, zx: f32, zy: f32) -> Matrix {
[INFO] [stderr]     |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `determinant`
[INFO] [stderr]    --> src/matrix.rs:222:4
[INFO] [stderr]     |
[INFO] [stderr] 222 | fn determinant(matrix: [[f32; 2]; 2]) -> f32 {
[INFO] [stderr]     |    ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `submatrix3`
[INFO] [stderr]    --> src/matrix.rs:226:4
[INFO] [stderr]     |
[INFO] [stderr] 226 | fn submatrix3(matrix: [[f32; 3]; 3], row: usize, col: usize) -> [[f32; 2]; 2] {
[INFO] [stderr]     |    ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `submatrix4`
[INFO] [stderr]    --> src/matrix.rs:248:4
[INFO] [stderr]     |
[INFO] [stderr] 248 | fn submatrix4(matrix: [[f32; 4]; 4], row: usize, col: usize) -> [[f32; 3]; 3] {
[INFO] [stderr]     |    ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `minor3`
[INFO] [stderr]    --> src/matrix.rs:270:4
[INFO] [stderr]     |
[INFO] [stderr] 270 | fn minor3(matrix: [[f32; 3]; 3], row: usize, col: usize) -> f32 {
[INFO] [stderr]     |    ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `cofactor3`
[INFO] [stderr]    --> src/matrix.rs:274:4
[INFO] [stderr]     |
[INFO] [stderr] 274 | fn cofactor3(matrix: [[f32; 3]; 3], row: usize, col: usize) -> f32 {
[INFO] [stderr]     |    ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `determinant3`
[INFO] [stderr]    --> src/matrix.rs:282:4
[INFO] [stderr]     |
[INFO] [stderr] 282 | fn determinant3(matrix: [[f32; 3]; 3]) -> f32 {
[INFO] [stderr]     |    ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `minor4`
[INFO] [stderr]    --> src/matrix.rs:291:4
[INFO] [stderr]     |
[INFO] [stderr] 291 | fn minor4(matrix: [[f32; 4]; 4], row: usize, col: usize) -> f32 {
[INFO] [stderr]     |    ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `cofactor4`
[INFO] [stderr]    --> src/matrix.rs:295:4
[INFO] [stderr]     |
[INFO] [stderr] 295 | fn cofactor4(matrix: [[f32; 4]; 4], row: usize, col: usize) -> f32 {
[INFO] [stderr]     |    ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `determinant4`
[INFO] [stderr]    --> src/matrix.rs:303:4
[INFO] [stderr]     |
[INFO] [stderr] 303 | fn determinant4(matrix: [[f32; 4]; 4]) -> f32 {
[INFO] [stderr]     |    ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `invertible`
[INFO] [stderr]    --> src/matrix.rs:312:4
[INFO] [stderr]     |
[INFO] [stderr] 312 | fn invertible(matrix: [[f32; 4]; 4]) -> bool {
[INFO] [stderr]     |    ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `inverse`
[INFO] [stderr]    --> src/matrix.rs:316:4
[INFO] [stderr]     |
[INFO] [stderr] 316 | fn inverse(matrix: [[f32; 4]; 4]) -> Option<[[f32; 4]; 4]> {
[INFO] [stderr]     |    ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `transpose`
[INFO] [stderr]    --> src/matrix.rs:339:4
[INFO] [stderr]     |
[INFO] [stderr] 339 | fn transpose(matrix: [[f32; 4]; 4]) -> [[f32; 4]; 4] {
[INFO] [stderr]     |    ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `cofactor`
[INFO] [stderr]   --> src/matrix.rs:46:3
[INFO] [stderr]    |
[INFO] [stderr] 46 |   pub fn cofactor(&self, row: usize, col: usize) -> f32 {
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `determinant`
[INFO] [stderr]   --> src/matrix.rs:50:3
[INFO] [stderr]    |
[INFO] [stderr] 50 |   pub fn determinant(&self) -> f32 {
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `scale_linear`
[INFO] [stderr]   --> src/matrix.rs:86:3
[INFO] [stderr]    |
[INFO] [stderr] 86 |   pub fn scale_linear(i: f32) -> Matrix {
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 16.02s
[INFO] running `"docker" "inspect" "a462f8d880fb8861a3161303a21c83cd271c9625e734a9f6a08879000d37c8a5"`
[INFO] running `"docker" "rm" "-f" "a462f8d880fb8861a3161303a21c83cd271c9625e734a9f6a08879000d37c8a5"`
[INFO] [stdout] a462f8d880fb8861a3161303a21c83cd271c9625e734a9f6a08879000d37c8a5