Dec 19 10:07:20.474 INFO checking rlupton20/yars-raytracer against try#e70472fc501b855c9080f3772432c10fe20b8866 for pr-56955
Dec 19 10:07:20.475 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-6/try#e70472fc501b855c9080f3772432c10fe20b8866:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/try#e70472fc501b855c9080f3772432c10fe20b8866/gh/rlupton20/yars-raytracer:/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" "+e70472fc501b855c9080f3772432c10fe20b8866-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 10:07:20.916 INFO [stdout] 9215eb9192494d1c05ec84e0e3cce89cfdcb9fedc8427dbf76cc18a5e27cdb4b
Dec 19 10:07:20.924 INFO running `"docker" "start" "-a" "9215eb9192494d1c05ec84e0e3cce89cfdcb9fedc8427dbf76cc18a5e27cdb4b"`
Dec 19 10:07:22.976 INFO [stderr]     Checking rustc-serialize v0.3.20
Dec 19 10:07:22.980 INFO [stderr]     Checking deque v0.3.1
Dec 19 10:07:22.980 INFO [stderr]     Checking enum_primitive v0.1.0
Dec 19 10:07:22.980 INFO [stderr]     Checking png v0.5.2
Dec 19 10:07:23.804 INFO [stderr]     Checking rayon v0.5.0
Dec 19 10:07:26.670 INFO [stderr]     Checking jpeg-decoder v0.1.8
Dec 19 10:07:30.204 INFO [stderr]     Checking num-bigint v0.1.35
Dec 19 10:07:31.089 INFO [stderr]     Checking num-rational v0.1.35
Dec 19 10:07:31.476 INFO [stderr]     Checking image v0.10.3
Dec 19 10:07:34.729 INFO [stderr]     Checking yars-raytracer v0.1.0 (/opt/crater/workdir)
Dec 19 10:07:35.030 INFO [stderr] warning: unused import: `std::vec::Vec`
Dec 19 10:07:35.030 INFO [stderr]  --> src/space_algebra/mod.rs:8:5
Dec 19 10:07:35.031 INFO [stderr]   |
Dec 19 10:07:35.031 INFO [stderr] 8 | use std::vec::Vec;
Dec 19 10:07:35.031 INFO [stderr]   |     ^^^^^^^^^^^^^
Dec 19 10:07:35.032 INFO [stderr]   |
Dec 19 10:07:35.032 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 19 10:07:35.032 INFO [stderr] 
Dec 19 10:07:35.033 INFO [stderr] warning: unused import: `InnerProductSpace`
Dec 19 10:07:35.033 INFO [stderr]  --> src/ray/mod.rs:4:15
Dec 19 10:07:35.034 INFO [stderr]   |
Dec 19 10:07:35.034 INFO [stderr] 4 | use algebra::{InnerProductSpace, Real};
Dec 19 10:07:35.034 INFO [stderr]   |               ^^^^^^^^^^^^^^^^^
Dec 19 10:07:35.035 INFO [stderr] 
Dec 19 10:07:35.035 INFO [stderr] warning: unused import: `image::Rgb`
Dec 19 10:07:35.036 INFO [stderr]  --> src/materials/mod.rs:2:5
Dec 19 10:07:35.036 INFO [stderr]   |
Dec 19 10:07:35.036 INFO [stderr] 2 | use image::Rgb;
Dec 19 10:07:35.037 INFO [stderr]   |     ^^^^^^^^^^
Dec 19 10:07:35.037 INFO [stderr] 
Dec 19 10:07:35.037 INFO [stderr] warning: unused import: `image::Rgb`
Dec 19 10:07:35.038 INFO [stderr]  --> src/shapes/mod.rs:2:5
Dec 19 10:07:35.038 INFO [stderr]   |
Dec 19 10:07:35.038 INFO [stderr] 2 | use image::Rgb;
Dec 19 10:07:35.039 INFO [stderr]   |     ^^^^^^^^^^
Dec 19 10:07:35.039 INFO [stderr] 
Dec 19 10:07:35.039 INFO [stderr] warning: unused imports: `Add`, `Mul`
Dec 19 10:07:35.040 INFO [stderr]  --> src/shade/mod.rs:8:16
Dec 19 10:07:35.040 INFO [stderr]   |
Dec 19 10:07:35.040 INFO [stderr] 8 | use std::ops::{Add, Mul};
Dec 19 10:07:35.041 INFO [stderr]   |                ^^^  ^^^
Dec 19 10:07:35.041 INFO [stderr] 
Dec 19 10:07:35.042 INFO [stderr] warning: unused import: `super::*`
Dec 19 10:07:35.042 INFO [stderr]    --> src/shade/mod.rs:186:9
Dec 19 10:07:35.042 INFO [stderr]     |
Dec 19 10:07:35.043 INFO [stderr] 186 |     use super::*;
Dec 19 10:07:35.043 INFO [stderr]     |         ^^^^^^^^
Dec 19 10:07:35.043 INFO [stderr] 
Dec 19 10:07:35.044 INFO [stderr] warning: unused import: `image::Rgb`
Dec 19 10:07:35.044 INFO [stderr]    --> src/shade/mod.rs:187:9
Dec 19 10:07:35.044 INFO [stderr]     |
Dec 19 10:07:35.045 INFO [stderr] 187 |     use image::Rgb;
Dec 19 10:07:35.045 INFO [stderr]     |         ^^^^^^^^^^
Dec 19 10:07:35.045 INFO [stderr] 
Dec 19 10:07:35.046 INFO [stderr] warning: unused import: `vector3d::Vec3`
Dec 19 10:07:35.046 INFO [stderr]    --> src/shade/mod.rs:188:9
Dec 19 10:07:35.046 INFO [stderr]     |
Dec 19 10:07:35.047 INFO [stderr] 188 |     use vector3d::Vec3;
Dec 19 10:07:35.047 INFO [stderr]     |         ^^^^^^^^^^^^^^
Dec 19 10:07:35.047 INFO [stderr] 
Dec 19 10:07:35.108 INFO [stderr] warning: unused import: `std::vec::Vec`
Dec 19 10:07:35.108 INFO [stderr]  --> src/space_algebra/mod.rs:8:5
Dec 19 10:07:35.108 INFO [stderr]   |
Dec 19 10:07:35.108 INFO [stderr] 8 | use std::vec::Vec;
Dec 19 10:07:35.109 INFO [stderr]   |     ^^^^^^^^^^^^^
Dec 19 10:07:35.109 INFO [stderr]   |
Dec 19 10:07:35.109 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 19 10:07:35.109 INFO [stderr] 
Dec 19 10:07:35.109 INFO [stderr] warning: unused import: `InnerProductSpace`
Dec 19 10:07:35.109 INFO [stderr]  --> src/ray/mod.rs:4:15
Dec 19 10:07:35.109 INFO [stderr]   |
Dec 19 10:07:35.109 INFO [stderr] 4 | use algebra::{InnerProductSpace, Real};
Dec 19 10:07:35.109 INFO [stderr]   |               ^^^^^^^^^^^^^^^^^
Dec 19 10:07:35.109 INFO [stderr] 
Dec 19 10:07:35.109 INFO [stderr] warning: unused import: `algebra::InnerProductSpace`
Dec 19 10:07:35.109 INFO [stderr]  --> src/camera/mod.rs:3:5
Dec 19 10:07:35.109 INFO [stderr]   |
Dec 19 10:07:35.109 INFO [stderr] 3 | use algebra::InnerProductSpace;
Dec 19 10:07:35.109 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 10:07:35.109 INFO [stderr] 
Dec 19 10:07:35.109 INFO [stderr] warning: unused import: `std::f64::consts::PI`
Dec 19 10:07:35.109 INFO [stderr]  --> src/camera/mod.rs:8:5
Dec 19 10:07:35.109 INFO [stderr]   |
Dec 19 10:07:35.109 INFO [stderr] 8 | use std::f64::consts::PI;
Dec 19 10:07:35.109 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^
Dec 19 10:07:35.109 INFO [stderr] 
Dec 19 10:07:35.109 INFO [stderr] warning: unused import: `image::Rgb`
Dec 19 10:07:35.109 INFO [stderr]  --> src/materials/mod.rs:2:5
Dec 19 10:07:35.109 INFO [stderr]   |
Dec 19 10:07:35.109 INFO [stderr] 2 | use image::Rgb;
Dec 19 10:07:35.109 INFO [stderr]   |     ^^^^^^^^^^
Dec 19 10:07:35.109 INFO [stderr] 
Dec 19 10:07:35.109 INFO [stderr] warning: unused import: `image::Rgb`
Dec 19 10:07:35.109 INFO [stderr]  --> src/shapes/mod.rs:2:5
Dec 19 10:07:35.109 INFO [stderr]   |
Dec 19 10:07:35.109 INFO [stderr] 2 | use image::Rgb;
Dec 19 10:07:35.109 INFO [stderr]   |     ^^^^^^^^^^
Dec 19 10:07:35.109 INFO [stderr] 
Dec 19 10:07:35.109 INFO [stderr] warning: unused import: `shapes::Sphere`
Dec 19 10:07:35.109 INFO [stderr]  --> src/shade/mod.rs:5:5
Dec 19 10:07:35.109 INFO [stderr]   |
Dec 19 10:07:35.109 INFO [stderr] 5 | use shapes::Sphere;
Dec 19 10:07:35.118 INFO [stderr]   |     ^^^^^^^^^^^^^^
Dec 19 10:07:35.118 INFO [stderr] 
Dec 19 10:07:35.118 INFO [stderr] warning: unused imports: `Ray`, `Shadable`
Dec 19 10:07:35.118 INFO [stderr]  --> src/shade/mod.rs:7:11
Dec 19 10:07:35.118 INFO [stderr]   |
Dec 19 10:07:35.118 INFO [stderr] 7 | use ray::{Ray, ShadeCell, Shadable};
Dec 19 10:07:35.118 INFO [stderr]   |           ^^^             ^^^^^^^^
Dec 19 10:07:35.118 INFO [stderr] 
Dec 19 10:07:35.118 INFO [stderr] warning: unused imports: `Add`, `Mul`
Dec 19 10:07:35.118 INFO [stderr]  --> src/shade/mod.rs:8:16
Dec 19 10:07:35.118 INFO [stderr]   |
Dec 19 10:07:35.118 INFO [stderr] 8 | use std::ops::{Add, Mul};
Dec 19 10:07:35.118 INFO [stderr]   |                ^^^  ^^^
Dec 19 10:07:35.118 INFO [stderr] 
Dec 19 10:07:35.248 INFO [stderr] warning: unused import: `algebra::Group`
Dec 19 10:07:35.248 INFO [stderr]  --> src/space_algebra/mod.rs:6:5
Dec 19 10:07:35.248 INFO [stderr]   |
Dec 19 10:07:35.248 INFO [stderr] 6 | use algebra::Group;
Dec 19 10:07:35.248 INFO [stderr]   |     ^^^^^^^^^^^^^^
Dec 19 10:07:35.248 INFO [stderr] 
Dec 19 10:07:35.250 INFO [stderr] warning: unused import: `algebra::Group`
Dec 19 10:07:35.250 INFO [stderr]  --> src/space_algebra/mod.rs:6:5
Dec 19 10:07:35.250 INFO [stderr]   |
Dec 19 10:07:35.250 INFO [stderr] 6 | use algebra::Group;
Dec 19 10:07:35.250 INFO [stderr]   |     ^^^^^^^^^^^^^^
Dec 19 10:07:35.250 INFO [stderr] 
Dec 19 10:07:35.269 INFO [stderr] warning: unused variable: `i`
Dec 19 10:07:35.269 INFO [stderr]   --> src/raytrace/mod.rs:21:28
Dec 19 10:07:35.269 INFO [stderr]    |
Dec 19 10:07:35.269 INFO [stderr] 21 |                 .filter(|&(i,op_col)| op_col.is_some())
Dec 19 10:07:35.269 INFO [stderr]    |                            ^ help: consider using `_i` instead
Dec 19 10:07:35.269 INFO [stderr]    |
Dec 19 10:07:35.269 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 19 10:07:35.269 INFO [stderr] 
Dec 19 10:07:35.269 INFO [stderr] warning: unused variable: `i`
Dec 19 10:07:35.269 INFO [stderr]   --> src/raytrace/mod.rs:21:28
Dec 19 10:07:35.269 INFO [stderr]    |
Dec 19 10:07:35.269 INFO [stderr] 21 |                 .filter(|&(i,op_col)| op_col.is_some())
Dec 19 10:07:35.270 INFO [stderr]    |                            ^ help: consider using `_i` instead
Dec 19 10:07:35.270 INFO [stderr]    |
Dec 19 10:07:35.270 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 19 10:07:35.270 INFO [stderr] 
Dec 19 10:07:35.329 INFO [stderr] warning: comparison is useless due to type limits
Dec 19 10:07:35.329 INFO [stderr]   --> src/camera/mod.rs:71:17
Dec 19 10:07:35.329 INFO [stderr]    |
Dec 19 10:07:35.329 INFO [stderr] 71 |         assert!(x >= 0);
Dec 19 10:07:35.329 INFO [stderr]    |                 ^^^^^^
Dec 19 10:07:35.329 INFO [stderr]    |
Dec 19 10:07:35.329 INFO [stderr]    = note: #[warn(unused_comparisons)] on by default
Dec 19 10:07:35.329 INFO [stderr] 
Dec 19 10:07:35.329 INFO [stderr] warning: comparison is useless due to type limits
Dec 19 10:07:35.329 INFO [stderr]   --> src/camera/mod.rs:73:17
Dec 19 10:07:35.329 INFO [stderr]    |
Dec 19 10:07:35.329 INFO [stderr] 73 |         assert!(y >= 0);
Dec 19 10:07:35.329 INFO [stderr]    |                 ^^^^^^
Dec 19 10:07:35.329 INFO [stderr] 
Dec 19 10:07:35.367 INFO [stderr] warning: function `test_SO3_multiplication` should have a snake case name such as `test_so3_multiplication`
Dec 19 10:07:35.367 INFO [stderr]   --> src/space_algebra/mod.rs:94:1
Dec 19 10:07:35.367 INFO [stderr]    |
Dec 19 10:07:35.367 INFO [stderr] 94 | / fn test_SO3_multiplication() {
Dec 19 10:07:35.367 INFO [stderr] 95 | |     let tolerance = 0.0000001;
Dec 19 10:07:35.367 INFO [stderr] 96 | |     let SO3(m1) = SO3::rotation_x(3.0) * SO3::rotation_x(-3.0);
Dec 19 10:07:35.367 INFO [stderr] 97 | |     assert!(Matrix3::dist(m1, Matrix3::identity()) < tolerance);
Dec 19 10:07:35.367 INFO [stderr] 98 | | }
Dec 19 10:07:35.367 INFO [stderr]    | |_^
Dec 19 10:07:35.367 INFO [stderr]    |
Dec 19 10:07:35.367 INFO [stderr]    = note: #[warn(non_snake_case)] on by default
Dec 19 10:07:35.367 INFO [stderr] 
Dec 19 10:07:35.368 INFO [stderr] warning: function `test_SO3_multiply_vector` should have a snake case name such as `test_so3_multiply_vector`
Dec 19 10:07:35.368 INFO [stderr]    --> src/space_algebra/mod.rs:101:1
Dec 19 10:07:35.368 INFO [stderr]     |
Dec 19 10:07:35.368 INFO [stderr] 101 | / fn test_SO3_multiply_vector() {
Dec 19 10:07:35.368 INFO [stderr] 102 | |     let s = SO3::rotation_x(1.0);
Dec 19 10:07:35.368 INFO [stderr] 103 | |     let v = Vec3(1.0, 0.0, 0.0);
Dec 19 10:07:35.368 INFO [stderr] 104 | |     let expected = Vec3(1.0, 0.0, 0.0);
Dec 19 10:07:35.368 INFO [stderr] 105 | |
Dec 19 10:07:35.368 INFO [stderr] 106 | |     assert!(s * v == expected);
Dec 19 10:07:35.368 INFO [stderr] 107 | | }
Dec 19 10:07:35.368 INFO [stderr]     | |_^
Dec 19 10:07:35.368 INFO [stderr] 
Dec 19 10:07:35.372 INFO [stderr] warning: comparison is useless due to type limits
Dec 19 10:07:35.372 INFO [stderr]   --> src/camera/mod.rs:71:17
Dec 19 10:07:35.372 INFO [stderr]    |
Dec 19 10:07:35.372 INFO [stderr] 71 |         assert!(x >= 0);
Dec 19 10:07:35.372 INFO [stderr]    |                 ^^^^^^
Dec 19 10:07:35.372 INFO [stderr]    |
Dec 19 10:07:35.372 INFO [stderr]    = note: #[warn(unused_comparisons)] on by default
Dec 19 10:07:35.372 INFO [stderr] 
Dec 19 10:07:35.372 INFO [stderr] warning: comparison is useless due to type limits
Dec 19 10:07:35.372 INFO [stderr]   --> src/camera/mod.rs:73:17
Dec 19 10:07:35.372 INFO [stderr]    |
Dec 19 10:07:35.372 INFO [stderr] 73 |         assert!(y >= 0);
Dec 19 10:07:35.372 INFO [stderr]    |                 ^^^^^^
Dec 19 10:07:35.372 INFO [stderr] 
Dec 19 10:07:35.590 INFO [stderr] warning: unused import: `yars_raytracer::algebra::InnerProductSpace`
Dec 19 10:07:35.590 INFO [stderr]  --> src/main.rs:8:5
Dec 19 10:07:35.590 INFO [stderr]   |
Dec 19 10:07:35.590 INFO [stderr] 8 | use yars_raytracer::algebra::InnerProductSpace;
Dec 19 10:07:35.590 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 10:07:35.590 INFO [stderr]   |
Dec 19 10:07:35.590 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 19 10:07:35.590 INFO [stderr] 
Dec 19 10:07:35.590 INFO [stderr] warning: unused import: `yars_raytracer::ray::Orientable`
Dec 19 10:07:35.590 INFO [stderr]   --> src/main.rs:10:5
Dec 19 10:07:35.590 INFO [stderr]    |
Dec 19 10:07:35.590 INFO [stderr] 10 | use yars_raytracer::ray::Orientable;
Dec 19 10:07:35.590 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 10:07:35.590 INFO [stderr] 
Dec 19 10:07:35.590 INFO [stderr] warning: unused import: `Shader`
Dec 19 10:07:35.590 INFO [stderr]   --> src/main.rs:13:29
Dec 19 10:07:35.590 INFO [stderr]    |
Dec 19 10:07:35.590 INFO [stderr] 13 | use yars_raytracer::shade::{Shader, PhongShader};
Dec 19 10:07:35.590 INFO [stderr]    |                             ^^^^^^
Dec 19 10:07:35.590 INFO [stderr] 
Dec 19 10:07:35.590 INFO [stderr] warning: unused imports: `Ray`, `ShadeCell`
Dec 19 10:07:35.590 INFO [stderr]   --> src/main.rs:19:27
Dec 19 10:07:35.590 INFO [stderr]    |
Dec 19 10:07:35.590 INFO [stderr] 19 | use yars_raytracer::ray::{Ray, Shadable, ShadeCell};
Dec 19 10:07:35.590 INFO [stderr]    |                           ^^^            ^^^^^^^^^
Dec 19 10:07:35.590 INFO [stderr] 
Dec 19 10:07:35.616 INFO [stderr] warning: unused import: `yars_raytracer::algebra::InnerProductSpace`
Dec 19 10:07:35.616 INFO [stderr]  --> src/main.rs:8:5
Dec 19 10:07:35.616 INFO [stderr]   |
Dec 19 10:07:35.616 INFO [stderr] 8 | use yars_raytracer::algebra::InnerProductSpace;
Dec 19 10:07:35.616 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 10:07:35.620 INFO [stderr]   |
Dec 19 10:07:35.620 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 19 10:07:35.620 INFO [stderr] 
Dec 19 10:07:35.620 INFO [stderr] warning: unused import: `yars_raytracer::ray::Orientable`
Dec 19 10:07:35.620 INFO [stderr]   --> src/main.rs:10:5
Dec 19 10:07:35.620 INFO [stderr]    |
Dec 19 10:07:35.620 INFO [stderr] 10 | use yars_raytracer::ray::Orientable;
Dec 19 10:07:35.620 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 10:07:35.620 INFO [stderr] 
Dec 19 10:07:35.620 INFO [stderr] warning: unused import: `Shader`
Dec 19 10:07:35.620 INFO [stderr]   --> src/main.rs:13:29
Dec 19 10:07:35.620 INFO [stderr]    |
Dec 19 10:07:35.620 INFO [stderr] 13 | use yars_raytracer::shade::{Shader, PhongShader};
Dec 19 10:07:35.620 INFO [stderr]    |                             ^^^^^^
Dec 19 10:07:35.620 INFO [stderr] 
Dec 19 10:07:35.620 INFO [stderr] warning: unused imports: `Ray`, `ShadeCell`
Dec 19 10:07:35.620 INFO [stderr]   --> src/main.rs:19:27
Dec 19 10:07:35.620 INFO [stderr]    |
Dec 19 10:07:35.620 INFO [stderr] 19 | use yars_raytracer::ray::{Ray, Shadable, ShadeCell};
Dec 19 10:07:35.620 INFO [stderr]    |                           ^^^            ^^^^^^^^^
Dec 19 10:07:35.620 INFO [stderr] 
Dec 19 10:07:35.652 INFO [stderr] warning: unused variable: `a_colour`
Dec 19 10:07:35.652 INFO [stderr]   --> src/main.rs:33:9
Dec 19 10:07:35.652 INFO [stderr]    |
Dec 19 10:07:35.652 INFO [stderr] 33 |     let a_colour = Rgb([255 as u8; 3]);
Dec 19 10:07:35.652 INFO [stderr]    |         ^^^^^^^^ help: consider using `_a_colour` instead
Dec 19 10:07:35.652 INFO [stderr]    |
Dec 19 10:07:35.652 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 19 10:07:35.652 INFO [stderr] 
Dec 19 10:07:35.664 INFO [stderr] warning: variable `WIDTH` should have a snake case name such as `width`
Dec 19 10:07:35.664 INFO [stderr]   --> src/main.rs:22:9
Dec 19 10:07:35.664 INFO [stderr]    |
Dec 19 10:07:35.664 INFO [stderr] 22 |     let WIDTH = 800;
Dec 19 10:07:35.664 INFO [stderr]    |         ^^^^^
Dec 19 10:07:35.664 INFO [stderr]    |
Dec 19 10:07:35.664 INFO [stderr]    = note: #[warn(non_snake_case)] on by default
Dec 19 10:07:35.664 INFO [stderr] 
Dec 19 10:07:35.664 INFO [stderr] warning: variable `HEIGHT` should have a snake case name such as `height`
Dec 19 10:07:35.664 INFO [stderr]   --> src/main.rs:23:9
Dec 19 10:07:35.664 INFO [stderr]    |
Dec 19 10:07:35.664 INFO [stderr] 23 |     let HEIGHT = 600;
Dec 19 10:07:35.664 INFO [stderr]    |         ^^^^^^
Dec 19 10:07:35.664 INFO [stderr] 
Dec 19 10:07:35.664 INFO [stderr] warning: variable `OUTPUT` should have a snake case name such as `output`
Dec 19 10:07:35.664 INFO [stderr]   --> src/main.rs:24:9
Dec 19 10:07:35.664 INFO [stderr]    |
Dec 19 10:07:35.664 INFO [stderr] 24 |     let OUTPUT = "output.png";
Dec 19 10:07:35.664 INFO [stderr]    |         ^^^^^^
Dec 19 10:07:35.664 INFO [stderr] 
Dec 19 10:07:35.676 INFO [stderr] warning: unused variable: `a_colour`
Dec 19 10:07:35.676 INFO [stderr]   --> src/main.rs:33:9
Dec 19 10:07:35.676 INFO [stderr]    |
Dec 19 10:07:35.676 INFO [stderr] 33 |     let a_colour = Rgb([255 as u8; 3]);
Dec 19 10:07:35.676 INFO [stderr]    |         ^^^^^^^^ help: consider using `_a_colour` instead
Dec 19 10:07:35.676 INFO [stderr]    |
Dec 19 10:07:35.676 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 19 10:07:35.676 INFO [stderr] 
Dec 19 10:07:35.680 INFO [stderr] warning: variable `WIDTH` should have a snake case name such as `width`
Dec 19 10:07:35.680 INFO [stderr]   --> src/main.rs:22:9
Dec 19 10:07:35.680 INFO [stderr]    |
Dec 19 10:07:35.680 INFO [stderr] 22 |     let WIDTH = 800;
Dec 19 10:07:35.680 INFO [stderr]    |         ^^^^^
Dec 19 10:07:35.680 INFO [stderr]    |
Dec 19 10:07:35.680 INFO [stderr]    = note: #[warn(non_snake_case)] on by default
Dec 19 10:07:35.680 INFO [stderr] 
Dec 19 10:07:35.680 INFO [stderr] warning: variable `HEIGHT` should have a snake case name such as `height`
Dec 19 10:07:35.680 INFO [stderr]   --> src/main.rs:23:9
Dec 19 10:07:35.680 INFO [stderr]    |
Dec 19 10:07:35.680 INFO [stderr] 23 |     let HEIGHT = 600;
Dec 19 10:07:35.680 INFO [stderr]    |         ^^^^^^
Dec 19 10:07:35.680 INFO [stderr] 
Dec 19 10:07:35.680 INFO [stderr] warning: variable `OUTPUT` should have a snake case name such as `output`
Dec 19 10:07:35.680 INFO [stderr]   --> src/main.rs:24:9
Dec 19 10:07:35.680 INFO [stderr]    |
Dec 19 10:07:35.680 INFO [stderr] 24 |     let OUTPUT = "output.png";
Dec 19 10:07:35.680 INFO [stderr]    |         ^^^^^^
Dec 19 10:07:35.680 INFO [stderr] 
Dec 19 10:07:35.722 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 12.86s
Dec 19 10:07:36.436 INFO running `"docker" "inspect" "9215eb9192494d1c05ec84e0e3cce89cfdcb9fedc8427dbf76cc18a5e27cdb4b"`
Dec 19 10:07:36.744 INFO running `"docker" "rm" "-f" "9215eb9192494d1c05ec84e0e3cce89cfdcb9fedc8427dbf76cc18a5e27cdb4b"`
Dec 19 10:07:37.056 INFO [stdout] 9215eb9192494d1c05ec84e0e3cce89cfdcb9fedc8427dbf76cc18a5e27cdb4b