Dec 18 06:56:43.121 INFO checking Kethku/RustyRayTracer against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 18 06:56:43.121 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-6/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/gh/Kethku/RustyRayTracer:/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 06:56:43.359 INFO [stdout] 73f63809fd4462c8e36fe564018befa9224d2e2a69a2f8dbeef455f0bc1f4a8e
Dec 18 06:56:43.362 INFO running `"docker" "start" "-a" "73f63809fd4462c8e36fe564018befa9224d2e2a69a2f8dbeef455f0bc1f4a8e"`
Dec 18 06:56:44.263 INFO [stderr]     Checking time v0.1.39
Dec 18 06:56:44.263 INFO [stderr]     Checking x11-dl v2.14.0
Dec 18 06:56:47.303 INFO [stderr]     Checking minifb v0.10.4
Dec 18 06:56:47.988 INFO [stderr]     Checking rusty_ray_tracer v0.1.0 (/opt/crater/workdir)
Dec 18 06:56:48.312 INFO [stderr] warning: unused import: `Barrier`
Dec 18 06:56:48.312 INFO [stderr]  --> src/main.rs:6:29
Dec 18 06:56:48.312 INFO [stderr]   |
Dec 18 06:56:48.312 INFO [stderr] 6 | use std::sync::{Arc, Mutex, Barrier};
Dec 18 06:56:48.312 INFO [stderr]   |                             ^^^^^^^
Dec 18 06:56:48.312 INFO [stderr]   |
Dec 18 06:56:48.312 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 18 06:56:48.312 INFO [stderr] 
Dec 18 06:56:48.312 INFO [stderr] warning: unused import: `std::f64::*`
Dec 18 06:56:48.312 INFO [stderr]  --> src/main.rs:9:5
Dec 18 06:56:48.312 INFO [stderr]   |
Dec 18 06:56:48.312 INFO [stderr] 9 | use std::f64::*;
Dec 18 06:56:48.312 INFO [stderr]   |     ^^^^^^^^^^^
Dec 18 06:56:48.312 INFO [stderr] 
Dec 18 06:56:48.312 INFO [stderr] warning: unused import: `characteristics::*`
Dec 18 06:56:48.312 INFO [stderr]  --> src/scene.rs:6:5
Dec 18 06:56:48.312 INFO [stderr]   |
Dec 18 06:56:48.312 INFO [stderr] 6 | use characteristics::*;
Dec 18 06:56:48.312 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^
Dec 18 06:56:48.312 INFO [stderr] 
Dec 18 06:56:48.312 INFO [stderr] warning: unused import: `distance_field::*`
Dec 18 06:56:48.312 INFO [stderr]  --> src/atmosphere.rs:2:5
Dec 18 06:56:48.312 INFO [stderr]   |
Dec 18 06:56:48.312 INFO [stderr] 2 | use distance_field::*;
Dec 18 06:56:48.312 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^
Dec 18 06:56:48.312 INFO [stderr] 
Dec 18 06:56:48.312 INFO [stderr] warning: unused import: `scene::*`
Dec 18 06:56:48.312 INFO [stderr]  --> src/atmosphere.rs:3:5
Dec 18 06:56:48.312 INFO [stderr]   |
Dec 18 06:56:48.312 INFO [stderr] 3 | use scene::*;
Dec 18 06:56:48.312 INFO [stderr]   |     ^^^^^^^^
Dec 18 06:56:48.324 INFO [stderr] 
Dec 18 06:56:48.324 INFO [stderr] warning: unused import: `atmosphere::*`
Dec 18 06:56:48.324 INFO [stderr]  --> src/scene_renderer.rs:7:5
Dec 18 06:56:48.324 INFO [stderr]   |
Dec 18 06:56:48.324 INFO [stderr] 7 | use atmosphere::*;
Dec 18 06:56:48.324 INFO [stderr]   |     ^^^^^^^^^^^^^
Dec 18 06:56:48.324 INFO [stderr] 
Dec 18 06:56:48.424 INFO [stderr] warning: unused import: `Barrier`
Dec 18 06:56:48.424 INFO [stderr]  --> src/main.rs:6:29
Dec 18 06:56:48.424 INFO [stderr]   |
Dec 18 06:56:48.424 INFO [stderr] 6 | use std::sync::{Arc, Mutex, Barrier};
Dec 18 06:56:48.424 INFO [stderr]   |                             ^^^^^^^
Dec 18 06:56:48.424 INFO [stderr]   |
Dec 18 06:56:48.424 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 18 06:56:48.424 INFO [stderr] 
Dec 18 06:56:48.424 INFO [stderr] warning: unused import: `std::f64::*`
Dec 18 06:56:48.424 INFO [stderr]  --> src/main.rs:9:5
Dec 18 06:56:48.424 INFO [stderr]   |
Dec 18 06:56:48.424 INFO [stderr] 9 | use std::f64::*;
Dec 18 06:56:48.424 INFO [stderr]   |     ^^^^^^^^^^^
Dec 18 06:56:48.424 INFO [stderr] 
Dec 18 06:56:48.424 INFO [stderr] warning: unused import: `characteristics::*`
Dec 18 06:56:48.424 INFO [stderr]  --> src/scene.rs:6:5
Dec 18 06:56:48.425 INFO [stderr]   |
Dec 18 06:56:48.425 INFO [stderr] 6 | use characteristics::*;
Dec 18 06:56:48.425 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^
Dec 18 06:56:48.425 INFO [stderr] 
Dec 18 06:56:48.425 INFO [stderr] warning: unused import: `distance_field::*`
Dec 18 06:56:48.425 INFO [stderr]  --> src/atmosphere.rs:2:5
Dec 18 06:56:48.425 INFO [stderr]   |
Dec 18 06:56:48.425 INFO [stderr] 2 | use distance_field::*;
Dec 18 06:56:48.425 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^
Dec 18 06:56:48.425 INFO [stderr] 
Dec 18 06:56:48.425 INFO [stderr] warning: unused import: `scene::*`
Dec 18 06:56:48.425 INFO [stderr]  --> src/atmosphere.rs:3:5
Dec 18 06:56:48.425 INFO [stderr]   |
Dec 18 06:56:48.425 INFO [stderr] 3 | use scene::*;
Dec 18 06:56:48.425 INFO [stderr]   |     ^^^^^^^^
Dec 18 06:56:48.425 INFO [stderr] 
Dec 18 06:56:48.425 INFO [stderr] warning: unused import: `atmosphere::*`
Dec 18 06:56:48.425 INFO [stderr]  --> src/scene_renderer.rs:7:5
Dec 18 06:56:48.425 INFO [stderr]   |
Dec 18 06:56:48.425 INFO [stderr] 7 | use atmosphere::*;
Dec 18 06:56:48.425 INFO [stderr]   |     ^^^^^^^^^^^^^
Dec 18 06:56:48.425 INFO [stderr] 
Dec 18 06:56:48.508 INFO [stderr] warning: unused variable: `i`
Dec 18 06:56:48.508 INFO [stderr]   --> src/scene_renderer.rs:68:21
Dec 18 06:56:48.508 INFO [stderr]    |
Dec 18 06:56:48.508 INFO [stderr] 68 |                 for i in 0..iterations {
Dec 18 06:56:48.508 INFO [stderr]    |                     ^ help: consider using `_i` instead
Dec 18 06:56:48.508 INFO [stderr]    |
Dec 18 06:56:48.508 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 18 06:56:48.508 INFO [stderr] 
Dec 18 06:56:48.508 INFO [stderr] warning: unused variable: `intersect`
Dec 18 06:56:48.508 INFO [stderr]   --> src/scene_renderer.rs:82:30
Dec 18 06:56:48.508 INFO [stderr]    |
Dec 18 06:56:48.508 INFO [stderr] 82 |                         Some(intersect) => continue,
Dec 18 06:56:48.508 INFO [stderr]    |                              ^^^^^^^^^ help: consider using `_intersect` instead
Dec 18 06:56:48.508 INFO [stderr] 
Dec 18 06:56:48.508 INFO [stderr] warning: unused variable: `pos`
Dec 18 06:56:48.508 INFO [stderr]   --> src/distance_field.rs:48:31
Dec 18 06:56:48.508 INFO [stderr]    |
Dec 18 06:56:48.508 INFO [stderr] 48 |     fn characteristics(&self, pos: Vector) -> Characteristics {
Dec 18 06:56:48.508 INFO [stderr]    |                               ^^^ help: consider using `_pos` instead
Dec 18 06:56:48.508 INFO [stderr] 
Dec 18 06:56:48.508 INFO [stderr] warning: unused variable: `pos`
Dec 18 06:56:48.508 INFO [stderr]   --> src/distance_field.rs:85:22
Dec 18 06:56:48.508 INFO [stderr]    |
Dec 18 06:56:48.508 INFO [stderr] 85 |     fn normal(&self, pos: Vector) -> Vector {
Dec 18 06:56:48.509 INFO [stderr]    |                      ^^^ help: consider using `_pos` instead
Dec 18 06:56:48.509 INFO [stderr] 
Dec 18 06:56:48.509 INFO [stderr] warning: unused variable: `pos`
Dec 18 06:56:48.509 INFO [stderr]   --> src/distance_field.rs:89:31
Dec 18 06:56:48.509 INFO [stderr]    |
Dec 18 06:56:48.509 INFO [stderr] 89 |     fn characteristics(&self, pos: Vector) -> Characteristics {
Dec 18 06:56:48.509 INFO [stderr]    |                               ^^^ help: consider using `_pos` instead
Dec 18 06:56:48.509 INFO [stderr] 
Dec 18 06:56:48.548 INFO [stderr] warning: struct is never constructed: `Sphere`
Dec 18 06:56:48.548 INFO [stderr]   --> src/distance_field.rs:14:1
Dec 18 06:56:48.548 INFO [stderr]    |
Dec 18 06:56:48.548 INFO [stderr] 14 | pub struct Sphere {
Dec 18 06:56:48.548 INFO [stderr]    | ^^^^^^^^^^^^^^^^^
Dec 18 06:56:48.548 INFO [stderr]    |
Dec 18 06:56:48.548 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 18 06:56:48.548 INFO [stderr] 
Dec 18 06:56:48.548 INFO [stderr] warning: method is never used: `new`
Dec 18 06:56:48.548 INFO [stderr]   --> src/distance_field.rs:21:5
Dec 18 06:56:48.548 INFO [stderr]    |
Dec 18 06:56:48.548 INFO [stderr] 21 |     pub fn new(pos: Vector, r: f64, chars: Characteristics) -> Scene<Sphere> {
Dec 18 06:56:48.548 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 06:56:48.548 INFO [stderr] 
Dec 18 06:56:48.548 INFO [stderr] warning: struct is never constructed: `Plane`
Dec 18 06:56:48.548 INFO [stderr]   --> src/distance_field.rs:53:1
Dec 18 06:56:48.548 INFO [stderr]    |
Dec 18 06:56:48.548 INFO [stderr] 53 | pub struct Plane {
Dec 18 06:56:48.548 INFO [stderr]    | ^^^^^^^^^^^^^^^^
Dec 18 06:56:48.548 INFO [stderr] 
Dec 18 06:56:48.548 INFO [stderr] warning: method is never used: `new`
Dec 18 06:56:48.548 INFO [stderr]   --> src/distance_field.rs:60:5
Dec 18 06:56:48.548 INFO [stderr]    |
Dec 18 06:56:48.548 INFO [stderr] 60 |     pub fn new(normal: Vector, point: Vector, chars: Characteristics) -> Scene<Plane> {
Dec 18 06:56:48.548 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 06:56:48.548 INFO [stderr] 
Dec 18 06:56:48.548 INFO [stderr] warning: constant item is never used: `MINIMUM_THRESHOLD`
Dec 18 06:56:48.548 INFO [stderr]   --> src/scene.rs:12:1
Dec 18 06:56:48.548 INFO [stderr]    |
Dec 18 06:56:48.549 INFO [stderr] 12 | const MINIMUM_THRESHOLD: f64 = 0.001;
Dec 18 06:56:48.549 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 06:56:48.549 INFO [stderr] 
Dec 18 06:56:48.549 INFO [stderr] warning: method is never used: `trace`
Dec 18 06:56:48.549 INFO [stderr]   --> src/scene.rs:14:5
Dec 18 06:56:48.549 INFO [stderr]    |
Dec 18 06:56:48.549 INFO [stderr] 14 |     pub fn trace(&self, position: Vector, direction: Vector, sun_dir: Vector) -> Vector {
Dec 18 06:56:48.549 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 06:56:48.549 INFO [stderr] 
Dec 18 06:56:48.549 INFO [stderr] warning: method is never used: `default`
Dec 18 06:56:48.549 INFO [stderr]   --> src/characteristics.rs:12:5
Dec 18 06:56:48.549 INFO [stderr]    |
Dec 18 06:56:48.549 INFO [stderr] 12 |     pub fn default() -> Characteristics {
Dec 18 06:56:48.549 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 06:56:48.549 INFO [stderr] 
Dec 18 06:56:48.549 INFO [stderr] warning: method is never used: `mirror`
Dec 18 06:56:48.549 INFO [stderr]   --> src/characteristics.rs:21:5
Dec 18 06:56:48.549 INFO [stderr]    |
Dec 18 06:56:48.549 INFO [stderr] 21 |     pub fn mirror(color: Vector) -> Characteristics {
Dec 18 06:56:48.549 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 06:56:48.549 INFO [stderr] 
Dec 18 06:56:48.549 INFO [stderr] warning: method is never used: `matte`
Dec 18 06:56:48.549 INFO [stderr]   --> src/characteristics.rs:30:5
Dec 18 06:56:48.549 INFO [stderr]    |
Dec 18 06:56:48.549 INFO [stderr] 30 |     pub fn matte(color: Vector) -> Characteristics {
Dec 18 06:56:48.549 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 06:56:48.549 INFO [stderr] 
Dec 18 06:56:48.549 INFO [stderr] warning: constant item is never used: `UP`
Dec 18 06:56:48.549 INFO [stderr]   --> src/scene_renderer.rs:10:1
Dec 18 06:56:48.549 INFO [stderr]    |
Dec 18 06:56:48.549 INFO [stderr] 10 | / const UP: Vector = Vector {
Dec 18 06:56:48.549 INFO [stderr] 11 | |     x: 0.0,
Dec 18 06:56:48.549 INFO [stderr] 12 | |     y: 1.0,
Dec 18 06:56:48.549 INFO [stderr] 13 | |     z: 0.0
Dec 18 06:56:48.549 INFO [stderr] 14 | | };
Dec 18 06:56:48.549 INFO [stderr]    | |__^
Dec 18 06:56:48.549 INFO [stderr] 
Dec 18 06:56:48.549 INFO [stderr] warning: function is never used: `scene_renderer`
Dec 18 06:56:48.549 INFO [stderr]   --> src/scene_renderer.rs:16:1
Dec 18 06:56:48.549 INFO [stderr]    |
Dec 18 06:56:48.549 INFO [stderr] 16 | pub fn scene_renderer(colors_mutex: Arc<Mutex<Vec<Vector>>>, width: usize, height: usize, threads: usize) {
Dec 18 06:56:48.549 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 06:56:48.549 INFO [stderr] 
Dec 18 06:56:48.549 INFO [stderr] warning: the feature `iterator_step_by` has been stable since 1.28.0 and no longer requires an attribute to enable
Dec 18 06:56:48.549 INFO [stderr]  --> src/main.rs:1:12
Dec 18 06:56:48.549 INFO [stderr]   |
Dec 18 06:56:48.549 INFO [stderr] 1 | #![feature(iterator_step_by)]
Dec 18 06:56:48.549 INFO [stderr]   |            ^^^^^^^^^^^^^^^^
Dec 18 06:56:48.549 INFO [stderr]   |
Dec 18 06:56:48.549 INFO [stderr]   = note: #[warn(stable_features)] on by default
Dec 18 06:56:48.549 INFO [stderr] 
Dec 18 06:56:48.610 INFO [stderr] warning: unused variable: `i`
Dec 18 06:56:48.610 INFO [stderr]   --> src/scene_renderer.rs:68:21
Dec 18 06:56:48.610 INFO [stderr]    |
Dec 18 06:56:48.610 INFO [stderr] 68 |                 for i in 0..iterations {
Dec 18 06:56:48.610 INFO [stderr]    |                     ^ help: consider using `_i` instead
Dec 18 06:56:48.610 INFO [stderr]    |
Dec 18 06:56:48.610 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 18 06:56:48.610 INFO [stderr] 
Dec 18 06:56:48.610 INFO [stderr] warning: unused variable: `intersect`
Dec 18 06:56:48.610 INFO [stderr]   --> src/scene_renderer.rs:82:30
Dec 18 06:56:48.610 INFO [stderr]    |
Dec 18 06:56:48.610 INFO [stderr] 82 |                         Some(intersect) => continue,
Dec 18 06:56:48.610 INFO [stderr]    |                              ^^^^^^^^^ help: consider using `_intersect` instead
Dec 18 06:56:48.610 INFO [stderr] 
Dec 18 06:56:48.610 INFO [stderr] warning: unused variable: `pos`
Dec 18 06:56:48.610 INFO [stderr]   --> src/distance_field.rs:48:31
Dec 18 06:56:48.610 INFO [stderr]    |
Dec 18 06:56:48.610 INFO [stderr] 48 |     fn characteristics(&self, pos: Vector) -> Characteristics {
Dec 18 06:56:48.610 INFO [stderr]    |                               ^^^ help: consider using `_pos` instead
Dec 18 06:56:48.610 INFO [stderr] 
Dec 18 06:56:48.610 INFO [stderr] warning: unused variable: `pos`
Dec 18 06:56:48.610 INFO [stderr]   --> src/distance_field.rs:85:22
Dec 18 06:56:48.610 INFO [stderr]    |
Dec 18 06:56:48.610 INFO [stderr] 85 |     fn normal(&self, pos: Vector) -> Vector {
Dec 18 06:56:48.610 INFO [stderr]    |                      ^^^ help: consider using `_pos` instead
Dec 18 06:56:48.610 INFO [stderr] 
Dec 18 06:56:48.610 INFO [stderr] warning: unused variable: `pos`
Dec 18 06:56:48.610 INFO [stderr]   --> src/distance_field.rs:89:31
Dec 18 06:56:48.611 INFO [stderr]    |
Dec 18 06:56:48.611 INFO [stderr] 89 |     fn characteristics(&self, pos: Vector) -> Characteristics {
Dec 18 06:56:48.611 INFO [stderr]    |                               ^^^ help: consider using `_pos` instead
Dec 18 06:56:48.611 INFO [stderr] 
Dec 18 06:56:48.646 INFO [stderr] warning: struct is never constructed: `Sphere`
Dec 18 06:56:48.648 INFO [stderr]   --> src/distance_field.rs:14:1
Dec 18 06:56:48.648 INFO [stderr]    |
Dec 18 06:56:48.648 INFO [stderr] 14 | pub struct Sphere {
Dec 18 06:56:48.648 INFO [stderr]    | ^^^^^^^^^^^^^^^^^
Dec 18 06:56:48.648 INFO [stderr]    |
Dec 18 06:56:48.648 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 18 06:56:48.648 INFO [stderr] 
Dec 18 06:56:48.648 INFO [stderr] warning: method is never used: `new`
Dec 18 06:56:48.648 INFO [stderr]   --> src/distance_field.rs:21:5
Dec 18 06:56:48.648 INFO [stderr]    |
Dec 18 06:56:48.648 INFO [stderr] 21 |     pub fn new(pos: Vector, r: f64, chars: Characteristics) -> Scene<Sphere> {
Dec 18 06:56:48.648 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 06:56:48.648 INFO [stderr] 
Dec 18 06:56:48.648 INFO [stderr] warning: struct is never constructed: `Plane`
Dec 18 06:56:48.648 INFO [stderr]   --> src/distance_field.rs:53:1
Dec 18 06:56:48.648 INFO [stderr]    |
Dec 18 06:56:48.648 INFO [stderr] 53 | pub struct Plane {
Dec 18 06:56:48.648 INFO [stderr]    | ^^^^^^^^^^^^^^^^
Dec 18 06:56:48.648 INFO [stderr] 
Dec 18 06:56:48.648 INFO [stderr] warning: method is never used: `new`
Dec 18 06:56:48.648 INFO [stderr]   --> src/distance_field.rs:60:5
Dec 18 06:56:48.648 INFO [stderr]    |
Dec 18 06:56:48.648 INFO [stderr] 60 |     pub fn new(normal: Vector, point: Vector, chars: Characteristics) -> Scene<Plane> {
Dec 18 06:56:48.648 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 06:56:48.648 INFO [stderr] 
Dec 18 06:56:48.648 INFO [stderr] warning: constant item is never used: `MINIMUM_THRESHOLD`
Dec 18 06:56:48.648 INFO [stderr]   --> src/scene.rs:12:1
Dec 18 06:56:48.648 INFO [stderr]    |
Dec 18 06:56:48.648 INFO [stderr] 12 | const MINIMUM_THRESHOLD: f64 = 0.001;
Dec 18 06:56:48.648 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 06:56:48.648 INFO [stderr] 
Dec 18 06:56:48.648 INFO [stderr] warning: method is never used: `trace`
Dec 18 06:56:48.648 INFO [stderr]   --> src/scene.rs:14:5
Dec 18 06:56:48.648 INFO [stderr]    |
Dec 18 06:56:48.648 INFO [stderr] 14 |     pub fn trace(&self, position: Vector, direction: Vector, sun_dir: Vector) -> Vector {
Dec 18 06:56:48.648 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 06:56:48.648 INFO [stderr] 
Dec 18 06:56:48.648 INFO [stderr] warning: method is never used: `default`
Dec 18 06:56:48.648 INFO [stderr]   --> src/characteristics.rs:12:5
Dec 18 06:56:48.648 INFO [stderr]    |
Dec 18 06:56:48.648 INFO [stderr] 12 |     pub fn default() -> Characteristics {
Dec 18 06:56:48.648 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 06:56:48.648 INFO [stderr] 
Dec 18 06:56:48.648 INFO [stderr] warning: method is never used: `mirror`
Dec 18 06:56:48.648 INFO [stderr]   --> src/characteristics.rs:21:5
Dec 18 06:56:48.648 INFO [stderr]    |
Dec 18 06:56:48.648 INFO [stderr] 21 |     pub fn mirror(color: Vector) -> Characteristics {
Dec 18 06:56:48.648 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 06:56:48.648 INFO [stderr] 
Dec 18 06:56:48.648 INFO [stderr] warning: method is never used: `matte`
Dec 18 06:56:48.648 INFO [stderr]   --> src/characteristics.rs:30:5
Dec 18 06:56:48.649 INFO [stderr]    |
Dec 18 06:56:48.649 INFO [stderr] 30 |     pub fn matte(color: Vector) -> Characteristics {
Dec 18 06:56:48.649 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 06:56:48.649 INFO [stderr] 
Dec 18 06:56:48.649 INFO [stderr] warning: constant item is never used: `UP`
Dec 18 06:56:48.649 INFO [stderr]   --> src/scene_renderer.rs:10:1
Dec 18 06:56:48.649 INFO [stderr]    |
Dec 18 06:56:48.649 INFO [stderr] 10 | / const UP: Vector = Vector {
Dec 18 06:56:48.649 INFO [stderr] 11 | |     x: 0.0,
Dec 18 06:56:48.649 INFO [stderr] 12 | |     y: 1.0,
Dec 18 06:56:48.649 INFO [stderr] 13 | |     z: 0.0
Dec 18 06:56:48.649 INFO [stderr] 14 | | };
Dec 18 06:56:48.649 INFO [stderr]    | |__^
Dec 18 06:56:48.649 INFO [stderr] 
Dec 18 06:56:48.660 INFO [stderr] warning: function is never used: `scene_renderer`
Dec 18 06:56:48.660 INFO [stderr]   --> src/scene_renderer.rs:16:1
Dec 18 06:56:48.660 INFO [stderr]    |
Dec 18 06:56:48.660 INFO [stderr] 16 | pub fn scene_renderer(colors_mutex: Arc<Mutex<Vec<Vector>>>, width: usize, height: usize, threads: usize) {
Dec 18 06:56:48.660 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 06:56:48.660 INFO [stderr] 
Dec 18 06:56:48.660 INFO [stderr] warning: the feature `iterator_step_by` has been stable since 1.28.0 and no longer requires an attribute to enable
Dec 18 06:56:48.660 INFO [stderr]  --> src/main.rs:1:12
Dec 18 06:56:48.660 INFO [stderr]   |
Dec 18 06:56:48.660 INFO [stderr] 1 | #![feature(iterator_step_by)]
Dec 18 06:56:48.660 INFO [stderr]   |            ^^^^^^^^^^^^^^^^
Dec 18 06:56:48.660 INFO [stderr]   |
Dec 18 06:56:48.660 INFO [stderr]   = note: #[warn(stable_features)] on by default
Dec 18 06:56:48.660 INFO [stderr] 
Dec 18 06:56:48.705 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.57s
Dec 18 06:56:49.090 INFO running `"docker" "inspect" "73f63809fd4462c8e36fe564018befa9224d2e2a69a2f8dbeef455f0bc1f4a8e"`
Dec 18 06:56:49.182 INFO running `"docker" "rm" "-f" "73f63809fd4462c8e36fe564018befa9224d2e2a69a2f8dbeef455f0bc1f4a8e"`
Dec 18 06:56:49.274 INFO [stdout] 73f63809fd4462c8e36fe564018befa9224d2e2a69a2f8dbeef455f0bc1f4a8e