Dec 18 00:31:41.715 INFO checking etri3600/Ray-Tracer-Rust against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 18 00:31:41.716 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-1/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/gh/etri3600/Ray-Tracer-Rust:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+96d1334e567237b1507cd277938e7ae2de75ff51-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 18 00:31:41.867 INFO [stdout] f292b4350b7d15dcd8a1b8c9bc02c1f259d5787f7e1a0db6fcebd609da5c5f48
Dec 18 00:31:41.874 INFO running `"docker" "start" "-a" "f292b4350b7d15dcd8a1b8c9bc02c1f259d5787f7e1a0db6fcebd609da5c5f48"`
Dec 18 00:31:42.511 INFO [stderr]     Checking inflate v0.4.4
Dec 18 00:31:42.513 INFO [stderr]     Checking crossbeam-epoch v0.3.1
Dec 18 00:31:42.513 INFO [stderr]    Compiling num-derive v0.2.3
Dec 18 00:31:43.397 INFO [stderr]     Checking png v0.12.0
Dec 18 00:31:43.668 INFO [stderr]     Checking crossbeam-deque v0.2.0
Dec 18 00:31:44.725 INFO [stderr]     Checking rayon-core v1.4.1
Dec 18 00:31:46.443 INFO [stderr]     Checking rayon v1.0.3
Dec 18 00:31:49.772 INFO [stderr]     Checking tiff v0.2.1
Dec 18 00:31:51.296 INFO [stderr]     Checking jpeg-decoder v0.1.15
Dec 18 00:31:52.313 INFO [stderr]     Checking image v0.20.1
Dec 18 00:31:56.546 INFO [stderr]     Checking Ray-Tracer v0.1.0 (/opt/crater/workdir)
Dec 18 00:31:57.284 INFO [stderr] warning: unused variable: `l`
Dec 18 00:31:57.284 INFO [stderr]    --> src/shape.rs:141:13
Dec 18 00:31:57.284 INFO [stderr]     |
Dec 18 00:31:57.284 INFO [stderr] 141 |         let l: Vector3 = self.location - ray.origin;
Dec 18 00:31:57.284 INFO [stderr]     |             ^ help: consider using `_l` instead
Dec 18 00:31:57.284 INFO [stderr]     |
Dec 18 00:31:57.284 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Dec 18 00:31:57.284 INFO [stderr] 
Dec 18 00:31:57.284 INFO [stderr] warning: unused variable: `normal`
Dec 18 00:31:57.284 INFO [stderr]    --> src/shape.rs:140:36
Dec 18 00:31:57.284 INFO [stderr]     |
Dec 18 00:31:57.284 INFO [stderr] 140 |     fn intersect(&self, ray: &Ray, normal: &mut Vector3, point: &mut Vector3) -> bool {
Dec 18 00:31:57.284 INFO [stderr]     |                                    ^^^^^^ help: consider using `_normal` instead
Dec 18 00:31:57.284 INFO [stderr] 
Dec 18 00:31:57.284 INFO [stderr] warning: unused variable: `point`
Dec 18 00:31:57.284 INFO [stderr]    --> src/shape.rs:140:58
Dec 18 00:31:57.284 INFO [stderr]     |
Dec 18 00:31:57.284 INFO [stderr] 140 |     fn intersect(&self, ray: &Ray, normal: &mut Vector3, point: &mut Vector3) -> bool {
Dec 18 00:31:57.284 INFO [stderr]     |                                                          ^^^^^ help: consider using `_point` instead
Dec 18 00:31:57.284 INFO [stderr] 
Dec 18 00:31:57.304 INFO [stderr] warning: unused variable: `l`
Dec 18 00:31:57.304 INFO [stderr]    --> src/shape.rs:141:13
Dec 18 00:31:57.304 INFO [stderr]     |
Dec 18 00:31:57.304 INFO [stderr] 141 |         let l: Vector3 = self.location - ray.origin;
Dec 18 00:31:57.304 INFO [stderr]     |             ^ help: consider using `_l` instead
Dec 18 00:31:57.304 INFO [stderr]     |
Dec 18 00:31:57.304 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Dec 18 00:31:57.304 INFO [stderr] 
Dec 18 00:31:57.304 INFO [stderr] warning: unused variable: `normal`
Dec 18 00:31:57.304 INFO [stderr]    --> src/shape.rs:140:36
Dec 18 00:31:57.304 INFO [stderr]     |
Dec 18 00:31:57.304 INFO [stderr] 140 |     fn intersect(&self, ray: &Ray, normal: &mut Vector3, point: &mut Vector3) -> bool {
Dec 18 00:31:57.304 INFO [stderr]     |                                    ^^^^^^ help: consider using `_normal` instead
Dec 18 00:31:57.304 INFO [stderr] 
Dec 18 00:31:57.304 INFO [stderr] warning: unused variable: `point`
Dec 18 00:31:57.304 INFO [stderr]    --> src/shape.rs:140:58
Dec 18 00:31:57.304 INFO [stderr]     |
Dec 18 00:31:57.304 INFO [stderr] 140 |     fn intersect(&self, ray: &Ray, normal: &mut Vector3, point: &mut Vector3) -> bool {
Dec 18 00:31:57.304 INFO [stderr]     |                                                          ^^^^^ help: consider using `_point` instead
Dec 18 00:31:57.304 INFO [stderr] 
Dec 18 00:31:57.361 INFO [stderr] warning: function is never used: `refraction`
Dec 18 00:31:57.361 INFO [stderr]   --> src/scene.rs:99:1
Dec 18 00:31:57.361 INFO [stderr]    |
Dec 18 00:31:57.361 INFO [stderr] 99 | fn refraction(incident: Vector3, normal: Vector3, n1: f32, n2: f32, refracted_ray: &mut Vector3) -> bool {
Dec 18 00:31:57.361 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 00:31:57.361 INFO [stderr]    |
Dec 18 00:31:57.361 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 18 00:31:57.361 INFO [stderr] 
Dec 18 00:31:57.361 INFO [stderr] warning: function is never used: `reflection`
Dec 18 00:31:57.361 INFO [stderr]    --> src/scene.rs:113:1
Dec 18 00:31:57.361 INFO [stderr]     |
Dec 18 00:31:57.361 INFO [stderr] 113 | fn reflection(incident: Vector3, normal: Vector3) -> Vector3
Dec 18 00:31:57.361 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 00:31:57.361 INFO [stderr] 
Dec 18 00:31:57.361 INFO [stderr] warning: function is never used: `fresnel`
Dec 18 00:31:57.361 INFO [stderr]    --> src/scene.rs:119:1
Dec 18 00:31:57.361 INFO [stderr]     |
Dec 18 00:31:57.361 INFO [stderr] 119 | fn fresnel(incident: Vector3, normal: Vector3, n1: f32, n2: f32) -> f32 {
Dec 18 00:31:57.361 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 00:31:57.361 INFO [stderr] 
Dec 18 00:31:57.361 INFO [stderr] warning: method is never used: `scale_linear`
Dec 18 00:31:57.361 INFO [stderr]   --> src/math/matrix.rs:19:5
Dec 18 00:31:57.362 INFO [stderr]    |
Dec 18 00:31:57.362 INFO [stderr] 19 |     pub fn scale_linear(s: f64) -> Matrix {
Dec 18 00:31:57.362 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 00:31:57.362 INFO [stderr] 
Dec 18 00:31:57.362 INFO [stderr] warning: method is never used: `scale`
Dec 18 00:31:57.362 INFO [stderr]   --> src/math/matrix.rs:24:5
Dec 18 00:31:57.362 INFO [stderr]    |
Dec 18 00:31:57.362 INFO [stderr] 24 |     pub fn scale(sx: f64, sy: f64, sz: f64) -> Matrix {
Dec 18 00:31:57.362 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 00:31:57.362 INFO [stderr] 
Dec 18 00:31:57.362 INFO [stderr] warning: method is never used: `rotate_x`
Dec 18 00:31:57.362 INFO [stderr]   --> src/math/matrix.rs:34:5
Dec 18 00:31:57.362 INFO [stderr]    |
Dec 18 00:31:57.362 INFO [stderr] 34 |     pub fn rotate_x(t: f64) -> Matrix {
Dec 18 00:31:57.362 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 00:31:57.362 INFO [stderr] 
Dec 18 00:31:57.362 INFO [stderr] warning: method is never used: `rotate_y`
Dec 18 00:31:57.362 INFO [stderr]   --> src/math/matrix.rs:46:5
Dec 18 00:31:57.362 INFO [stderr]    |
Dec 18 00:31:57.362 INFO [stderr] 46 |     pub fn rotate_y(t: f64) -> Matrix {
Dec 18 00:31:57.362 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 00:31:57.362 INFO [stderr] 
Dec 18 00:31:57.362 INFO [stderr] warning: method is never used: `rotate_z`
Dec 18 00:31:57.362 INFO [stderr]   --> src/math/matrix.rs:58:5
Dec 18 00:31:57.362 INFO [stderr]    |
Dec 18 00:31:57.362 INFO [stderr] 58 |     pub fn rotate_z(t: f64) -> Matrix {
Dec 18 00:31:57.362 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 00:31:57.362 INFO [stderr] 
Dec 18 00:31:57.362 INFO [stderr] warning: method is never used: `translate`
Dec 18 00:31:57.362 INFO [stderr]   --> src/math/matrix.rs:70:5
Dec 18 00:31:57.362 INFO [stderr]    |
Dec 18 00:31:57.362 INFO [stderr] 70 |     pub fn translate(tx: f64, ty:f64, tz: f64) -> Matrix {
Dec 18 00:31:57.362 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 00:31:57.362 INFO [stderr] 
Dec 18 00:31:57.362 INFO [stderr] warning: method is never used: `inverse`
Dec 18 00:31:57.362 INFO [stderr]   --> src/math/matrix.rs:79:5
Dec 18 00:31:57.362 INFO [stderr]    |
Dec 18 00:31:57.362 INFO [stderr] 79 |     pub fn inverse(&self) -> Matrix {
Dec 18 00:31:57.362 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 00:31:57.362 INFO [stderr] 
Dec 18 00:31:57.362 INFO [stderr] warning: method is never used: `new`
Dec 18 00:31:57.362 INFO [stderr]   --> src/math/quaternion.rs:13:5
Dec 18 00:31:57.362 INFO [stderr]    |
Dec 18 00:31:57.362 INFO [stderr] 13 |     pub fn new(x: f64, y: f64, z: f64, w: f64) -> Quat {
Dec 18 00:31:57.362 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 00:31:57.362 INFO [stderr] 
Dec 18 00:31:57.362 INFO [stderr] warning: method is never used: `identity`
Dec 18 00:31:57.362 INFO [stderr]   --> src/math/quaternion.rs:17:5
Dec 18 00:31:57.362 INFO [stderr]    |
Dec 18 00:31:57.362 INFO [stderr] 17 |     pub fn identity() -> Quat {
Dec 18 00:31:57.362 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 00:31:57.362 INFO [stderr] 
Dec 18 00:31:57.362 INFO [stderr] warning: method is never used: `normalize`
Dec 18 00:31:57.362 INFO [stderr]   --> src/math/quaternion.rs:21:5
Dec 18 00:31:57.362 INFO [stderr]    |
Dec 18 00:31:57.362 INFO [stderr] 21 |     pub fn normalize(&mut self) -> &mut Self {
Dec 18 00:31:57.362 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 00:31:57.362 INFO [stderr] 
Dec 18 00:31:57.362 INFO [stderr] warning: method is never used: `conjugate`
Dec 18 00:31:57.362 INFO [stderr]   --> src/math/quaternion.rs:33:5
Dec 18 00:31:57.362 INFO [stderr]    |
Dec 18 00:31:57.362 INFO [stderr] 33 |     pub fn conjugate(&mut self) -> &mut Self {
Dec 18 00:31:57.362 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 00:31:57.362 INFO [stderr] 
Dec 18 00:31:57.362 INFO [stderr] warning: method is never used: `rotate`
Dec 18 00:31:57.362 INFO [stderr]   --> src/math/quaternion.rs:40:5
Dec 18 00:31:57.362 INFO [stderr]    |
Dec 18 00:31:57.362 INFO [stderr] 40 |     pub fn rotate(&self, vec: Vector3) -> Vector3 {
Dec 18 00:31:57.362 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 00:31:57.362 INFO [stderr] 
Dec 18 00:31:57.362 INFO [stderr] warning: variant is never constructed: `Point`
Dec 18 00:31:57.362 INFO [stderr]  --> src/light.rs:8:5
Dec 18 00:31:57.362 INFO [stderr]   |
Dec 18 00:31:57.362 INFO [stderr] 8 |     Point,
Dec 18 00:31:57.362 INFO [stderr]   |     ^^^^^
Dec 18 00:31:57.362 INFO [stderr] 
Dec 18 00:31:57.362 INFO [stderr] warning: crate `Ray_Tracer` should have a snake case name such as `ray_tracer`
Dec 18 00:31:57.362 INFO [stderr]   |
Dec 18 00:31:57.362 INFO [stderr]   = note: #[warn(non_snake_case)] on by default
Dec 18 00:31:57.362 INFO [stderr] 
Dec 18 00:31:57.380 INFO [stderr] warning: function is never used: `refraction`
Dec 18 00:31:57.381 INFO [stderr]   --> src/scene.rs:99:1
Dec 18 00:31:57.381 INFO [stderr]    |
Dec 18 00:31:57.381 INFO [stderr] 99 | fn refraction(incident: Vector3, normal: Vector3, n1: f32, n2: f32, refracted_ray: &mut Vector3) -> bool {
Dec 18 00:31:57.381 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 00:31:57.381 INFO [stderr]    |
Dec 18 00:31:57.381 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 18 00:31:57.381 INFO [stderr] 
Dec 18 00:31:57.381 INFO [stderr] warning: function is never used: `reflection`
Dec 18 00:31:57.381 INFO [stderr]    --> src/scene.rs:113:1
Dec 18 00:31:57.381 INFO [stderr]     |
Dec 18 00:31:57.381 INFO [stderr] 113 | fn reflection(incident: Vector3, normal: Vector3) -> Vector3
Dec 18 00:31:57.381 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 00:31:57.381 INFO [stderr] 
Dec 18 00:31:57.381 INFO [stderr] warning: function is never used: `fresnel`
Dec 18 00:31:57.381 INFO [stderr]    --> src/scene.rs:119:1
Dec 18 00:31:57.381 INFO [stderr]     |
Dec 18 00:31:57.381 INFO [stderr] 119 | fn fresnel(incident: Vector3, normal: Vector3, n1: f32, n2: f32) -> f32 {
Dec 18 00:31:57.381 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 00:31:57.381 INFO [stderr] 
Dec 18 00:31:57.381 INFO [stderr] warning: method is never used: `scale_linear`
Dec 18 00:31:57.381 INFO [stderr]   --> src/math/matrix.rs:19:5
Dec 18 00:31:57.381 INFO [stderr]    |
Dec 18 00:31:57.381 INFO [stderr] 19 |     pub fn scale_linear(s: f64) -> Matrix {
Dec 18 00:31:57.381 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 00:31:57.381 INFO [stderr] 
Dec 18 00:31:57.381 INFO [stderr] warning: method is never used: `scale`
Dec 18 00:31:57.381 INFO [stderr]   --> src/math/matrix.rs:24:5
Dec 18 00:31:57.381 INFO [stderr]    |
Dec 18 00:31:57.381 INFO [stderr] 24 |     pub fn scale(sx: f64, sy: f64, sz: f64) -> Matrix {
Dec 18 00:31:57.381 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 00:31:57.381 INFO [stderr] 
Dec 18 00:31:57.381 INFO [stderr] warning: method is never used: `rotate_x`
Dec 18 00:31:57.381 INFO [stderr]   --> src/math/matrix.rs:34:5
Dec 18 00:31:57.381 INFO [stderr]    |
Dec 18 00:31:57.381 INFO [stderr] 34 |     pub fn rotate_x(t: f64) -> Matrix {
Dec 18 00:31:57.381 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 00:31:57.381 INFO [stderr] 
Dec 18 00:31:57.381 INFO [stderr] warning: method is never used: `rotate_y`
Dec 18 00:31:57.381 INFO [stderr]   --> src/math/matrix.rs:46:5
Dec 18 00:31:57.381 INFO [stderr]    |
Dec 18 00:31:57.381 INFO [stderr] 46 |     pub fn rotate_y(t: f64) -> Matrix {
Dec 18 00:31:57.381 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 00:31:57.381 INFO [stderr] 
Dec 18 00:31:57.381 INFO [stderr] warning: method is never used: `rotate_z`
Dec 18 00:31:57.381 INFO [stderr]   --> src/math/matrix.rs:58:5
Dec 18 00:31:57.381 INFO [stderr]    |
Dec 18 00:31:57.381 INFO [stderr] 58 |     pub fn rotate_z(t: f64) -> Matrix {
Dec 18 00:31:57.381 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 00:31:57.381 INFO [stderr] 
Dec 18 00:31:57.381 INFO [stderr] warning: method is never used: `translate`
Dec 18 00:31:57.381 INFO [stderr]   --> src/math/matrix.rs:70:5
Dec 18 00:31:57.381 INFO [stderr]    |
Dec 18 00:31:57.381 INFO [stderr] 70 |     pub fn translate(tx: f64, ty:f64, tz: f64) -> Matrix {
Dec 18 00:31:57.381 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 00:31:57.381 INFO [stderr] 
Dec 18 00:31:57.381 INFO [stderr] warning: method is never used: `inverse`
Dec 18 00:31:57.381 INFO [stderr]   --> src/math/matrix.rs:79:5
Dec 18 00:31:57.381 INFO [stderr]    |
Dec 18 00:31:57.381 INFO [stderr] 79 |     pub fn inverse(&self) -> Matrix {
Dec 18 00:31:57.381 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 00:31:57.381 INFO [stderr] 
Dec 18 00:31:57.381 INFO [stderr] warning: method is never used: `new`
Dec 18 00:31:57.381 INFO [stderr]   --> src/math/quaternion.rs:13:5
Dec 18 00:31:57.381 INFO [stderr]    |
Dec 18 00:31:57.381 INFO [stderr] 13 |     pub fn new(x: f64, y: f64, z: f64, w: f64) -> Quat {
Dec 18 00:31:57.381 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 00:31:57.381 INFO [stderr] 
Dec 18 00:31:57.381 INFO [stderr] warning: method is never used: `identity`
Dec 18 00:31:57.381 INFO [stderr]   --> src/math/quaternion.rs:17:5
Dec 18 00:31:57.381 INFO [stderr]    |
Dec 18 00:31:57.381 INFO [stderr] 17 |     pub fn identity() -> Quat {
Dec 18 00:31:57.381 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 00:31:57.381 INFO [stderr] 
Dec 18 00:31:57.381 INFO [stderr] warning: method is never used: `normalize`
Dec 18 00:31:57.381 INFO [stderr]   --> src/math/quaternion.rs:21:5
Dec 18 00:31:57.381 INFO [stderr]    |
Dec 18 00:31:57.381 INFO [stderr] 21 |     pub fn normalize(&mut self) -> &mut Self {
Dec 18 00:31:57.381 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 00:31:57.381 INFO [stderr] 
Dec 18 00:31:57.381 INFO [stderr] warning: method is never used: `conjugate`
Dec 18 00:31:57.381 INFO [stderr]   --> src/math/quaternion.rs:33:5
Dec 18 00:31:57.381 INFO [stderr]    |
Dec 18 00:31:57.381 INFO [stderr] 33 |     pub fn conjugate(&mut self) -> &mut Self {
Dec 18 00:31:57.381 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 00:31:57.381 INFO [stderr] 
Dec 18 00:31:57.381 INFO [stderr] warning: method is never used: `rotate`
Dec 18 00:31:57.381 INFO [stderr]   --> src/math/quaternion.rs:40:5
Dec 18 00:31:57.381 INFO [stderr]    |
Dec 18 00:31:57.381 INFO [stderr] 40 |     pub fn rotate(&self, vec: Vector3) -> Vector3 {
Dec 18 00:31:57.381 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 00:31:57.381 INFO [stderr] 
Dec 18 00:31:57.381 INFO [stderr] warning: variant is never constructed: `Point`
Dec 18 00:31:57.381 INFO [stderr]  --> src/light.rs:8:5
Dec 18 00:31:57.381 INFO [stderr]   |
Dec 18 00:31:57.381 INFO [stderr] 8 |     Point,
Dec 18 00:31:57.381 INFO [stderr]   |     ^^^^^
Dec 18 00:31:57.381 INFO [stderr] 
Dec 18 00:31:57.384 INFO [stderr] warning: crate `Ray_Tracer` should have a snake case name such as `ray_tracer`
Dec 18 00:31:57.384 INFO [stderr]   |
Dec 18 00:31:57.384 INFO [stderr]   = note: #[warn(non_snake_case)] on by default
Dec 18 00:31:57.384 INFO [stderr] 
Dec 18 00:31:57.410 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 15.01s
Dec 18 00:31:57.708 INFO running `"docker" "inspect" "f292b4350b7d15dcd8a1b8c9bc02c1f259d5787f7e1a0db6fcebd609da5c5f48"`
Dec 18 00:31:57.800 INFO running `"docker" "rm" "-f" "f292b4350b7d15dcd8a1b8c9bc02c1f259d5787f7e1a0db6fcebd609da5c5f48"`
Dec 18 00:31:57.956 INFO [stdout] f292b4350b7d15dcd8a1b8c9bc02c1f259d5787f7e1a0db6fcebd609da5c5f48