[INFO] updating cached repository tcsc/raygun
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/tcsc/raygun
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/tcsc/raygun" "work/ex/pr-57745/sources/master#f613dc138b4012cf3d2eb40718fbcc7cf0a34039/gh/tcsc/raygun"`
[INFO] [stderr] Cloning into 'work/ex/pr-57745/sources/master#f613dc138b4012cf3d2eb40718fbcc7cf0a34039/gh/tcsc/raygun'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/tcsc/raygun" "work/ex/pr-57745/sources/try#29640c57b5f92febba0e40c50cb863c9a7ede51d/gh/tcsc/raygun"`
[INFO] [stderr] Cloning into 'work/ex/pr-57745/sources/try#29640c57b5f92febba0e40c50cb863c9a7ede51d/gh/tcsc/raygun'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] ae3c9f0770c2c8f99ceae299ec0510bf275469b6
[INFO] sha for GitHub repo tcsc/raygun: ae3c9f0770c2c8f99ceae299ec0510bf275469b6
[INFO] validating manifest of tcsc/raygun on toolchain master#f613dc138b4012cf3d2eb40718fbcc7cf0a34039
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+f613dc138b4012cf3d2eb40718fbcc7cf0a34039-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of tcsc/raygun on toolchain try#29640c57b5f92febba0e40c50cb863c9a7ede51d
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+29640c57b5f92febba0e40c50cb863c9a7ede51d-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing tcsc/raygun
[INFO] finished frobbing tcsc/raygun
[INFO] frobbed toml for tcsc/raygun written to work/ex/pr-57745/sources/master#f613dc138b4012cf3d2eb40718fbcc7cf0a34039/gh/tcsc/raygun/Cargo.toml
[INFO] started frobbing tcsc/raygun
[INFO] finished frobbing tcsc/raygun
[INFO] frobbed toml for tcsc/raygun written to work/ex/pr-57745/sources/try#29640c57b5f92febba0e40c50cb863c9a7ede51d/gh/tcsc/raygun/Cargo.toml
[INFO] crate tcsc/raygun has a lockfile. skipping
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+f613dc138b4012cf3d2eb40718fbcc7cf0a34039-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+29640c57b5f92febba0e40c50cb863c9a7ede51d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking tcsc/raygun against try#29640c57b5f92febba0e40c50cb863c9a7ede51d for pr-57745
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57745/worker-3/try#29640c57b5f92febba0e40c50cb863c9a7ede51d:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57745/sources/try#29640c57b5f92febba0e40c50cb863c9a7ede51d/gh/tcsc/raygun:/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" "+29640c57b5f92febba0e40c50cb863c9a7ede51d-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 66011b365d08c4f6f0b93cf6704c183287a554a3b7912189c7743f14c60d575b
[INFO] running `"docker" "start" "-a" "66011b365d08c4f6f0b93cf6704c183287a554a3b7912189c7743f14c60d575b"`
[INFO] [stderr]    Compiling cc v1.0.1
[INFO] [stderr]     Checking term v0.4.6
[INFO] [stderr]     Checking downcast v0.9.1
[INFO] [stderr]     Checking memchr v1.0.1
[INFO] [stderr]     Checking itertools v0.6.5
[INFO] [stderr]    Compiling tempdir v0.3.5
[INFO] [stderr]     Checking float-cmp v0.2.5
[INFO] [stderr]    Compiling serde v1.0.15
[INFO] [stderr]     Checking aho-corasick v0.6.3
[INFO] [stderr]     Checking nom v3.2.0
[INFO] [stderr]     Checking simplelog v0.4.3
[INFO] [stderr]     Checking regex v0.2.2
[INFO] [stderr]    Compiling backtrace-sys v0.1.16
[INFO] [stderr]    Compiling semver v0.8.0
[INFO] [stderr]    Compiling serde_json v1.0.4
[INFO] [stderr]    Compiling backtrace v0.3.3
[INFO] [stderr]    Compiling error-chain v0.11.0
[INFO] [stderr]    Compiling cargo_metadata v0.3.0
[INFO] [stderr]    Compiling skeptic v0.13.2
[INFO] [stderr]    Compiling liquid v0.10.1
[INFO] [stderr]     Checking raygun v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `std::error::Error`
[INFO] [stderr]   --> src/main.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 | use std::error::Error;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Config`, `LogLevelFilter`, `TermLogger`
[INFO] [stderr]   --> src/main.rs:14:17
[INFO] [stderr]    |
[INFO] [stderr] 14 | use simplelog::{TermLogger, LogLevelFilter, Config};
[INFO] [stderr]    |                 ^^^^^^^^^^  ^^^^^^^^^^^^^^  ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Object`
[INFO] [stderr]  --> src/light/point_light.rs:5:33
[INFO] [stderr]   |
[INFO] [stderr] 5 | use primitive::{AxisAlignedBox, Object, Primitive};
[INFO] [stderr]   |                                 ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Ulps`
[INFO] [stderr]    --> src/math/matrix.rs:253:21
[INFO] [stderr]     |
[INFO] [stderr] 253 |     use float_cmp::{Ulps, ApproxEqUlps};
[INFO] [stderr]     |                     ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Point`, `Vector`
[INFO] [stderr]  --> src/math/transform.rs:2:18
[INFO] [stderr]   |
[INFO] [stderr] 2 | use math::{self, Point, Matrix, Vector};
[INFO] [stderr]   |                  ^^^^^          ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Vector`
[INFO] [stderr]  --> src/primitive/aabb.rs:1:19
[INFO] [stderr]   |
[INFO] [stderr] 1 | use math::{Point, Vector};
[INFO] [stderr]   |                   ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `self`
[INFO] [stderr]  --> src/primitive/_box.rs:2:12
[INFO] [stderr]   |
[INFO] [stderr] 2 | use math::{self, point, Point, Vector};
[INFO] [stderr]   |            ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Object`
[INFO] [stderr]  --> src/primitive/_box.rs:3:33
[INFO] [stderr]   |
[INFO] [stderr] 3 | use primitive::{AxisAlignedBox, Object, Primitive};
[INFO] [stderr]   |                                 ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Matrix`
[INFO] [stderr]  --> src/primitive/union.rs:2:12
[INFO] [stderr]   |
[INFO] [stderr] 2 | use math::{Matrix, Point, Transform, Vector};
[INFO] [stderr]   |            ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `IDENTITY`
[INFO] [stderr]   --> src/primitive/union.rs:65:31
[INFO] [stderr]    |
[INFO] [stderr] 65 |     use math::{point, vector, IDENTITY};
[INFO] [stderr]    |                               ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Finish`
[INFO] [stderr]  --> src/primitive/object.rs:4:16
[INFO] [stderr]   |
[INFO] [stderr] 4 | use material::{Finish, Material};
[INFO] [stderr]   |                ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Vector`
[INFO] [stderr]  --> src/primitive/object.rs:5:30
[INFO] [stderr]   |
[INFO] [stderr] 5 | use math::{Point, Transform, Vector};
[INFO] [stderr]   |                              ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `math::point`
[INFO] [stderr]   --> src/primitive/object.rs:87:13
[INFO] [stderr]    |
[INFO] [stderr] 87 |         use math::point;
[INFO] [stderr]    |             ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Object`
[INFO] [stderr]  --> src/primitive/plane.rs:2:17
[INFO] [stderr]   |
[INFO] [stderr] 2 | use primitive::{Object, Primitive};
[INFO] [stderr]   |                 ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Object`
[INFO] [stderr]  --> src/primitive/sphere.rs:5:33
[INFO] [stderr]   |
[INFO] [stderr] 5 | use primitive::{AxisAlignedBox, Object, Primitive};
[INFO] [stderr]   |                                 ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `primitive::primitive::*`
[INFO] [stderr]   --> src/primitive/sphere.rs:88:9
[INFO] [stderr]    |
[INFO] [stderr] 88 |     use primitive::primitive::*;
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::boxed`
[INFO] [stderr]   --> src/primitive/mod.rs:17:5
[INFO] [stderr]    |
[INFO] [stderr] 17 | use std::boxed;
[INFO] [stderr]    |     ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::sync::Arc`
[INFO] [stderr]   --> src/primitive/mod.rs:18:5
[INFO] [stderr]    |
[INFO] [stderr] 18 | use std::sync::Arc;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `self`
[INFO] [stderr]  --> src/material.rs:1:14
[INFO] [stderr]   |
[INFO] [stderr] 1 | use colour::{self, Colour};
[INFO] [stderr]   |              ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Light`, `PointLight`
[INFO] [stderr]  --> src/scene.rs:6:13
[INFO] [stderr]   |
[INFO] [stderr] 6 | use light::{Light, PointLight};
[INFO] [stderr]   |             ^^^^^  ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::ops::Deref`
[INFO] [stderr]   --> src/scene.rs:66:21
[INFO] [stderr]    |
[INFO] [stderr] 66 |                 use std::ops::Deref;
[INFO] [stderr]    |                     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Matrix`, `self`
[INFO] [stderr]  --> src/scenefile/constructs.rs:8:12
[INFO] [stderr]   |
[INFO] [stderr] 8 | use math::{self, Matrix, Vector, Transform};
[INFO] [stderr]   |            ^^^^  ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `point`
[INFO] [stderr]   --> src/scenefile/camera.rs:59:20
[INFO] [stderr]    |
[INFO] [stderr] 59 |         use math::{point, vector};
[INFO] [stderr]    |                    ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::f64::consts::FRAC_1_SQRT_2`
[INFO] [stderr]   --> src/scenefile/camera.rs:60:13
[INFO] [stderr]    |
[INFO] [stderr] 60 |         use std::f64::consts::FRAC_1_SQRT_2;
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `math::Transform`
[INFO] [stderr]  --> src/scenefile/lights.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | use math::Transform;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `material::Finish`
[INFO] [stderr]   --> src/scenefile/material/mod.rs:74:13
[INFO] [stderr]    |
[INFO] [stderr] 74 |         use material::Finish;
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Vector`, `self`
[INFO] [stderr]  --> src/scenefile/primitive.rs:4:12
[INFO] [stderr]   |
[INFO] [stderr] 4 | use math::{self, Vector, Transform};
[INFO] [stderr]   |            ^^^^  ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::str`
[INFO] [stderr]  --> src/scenefile/primitive.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | use std::str;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::cell::RefCell`
[INFO] [stderr]   --> src/scenefile/primitive.rs:86:9
[INFO] [stderr]    |
[INFO] [stderr] 86 |     use std::cell::RefCell;
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `nom`
[INFO] [stderr]    --> src/scenefile/primitive.rs:133:9
[INFO] [stderr]     |
[INFO] [stderr] 133 |     use nom;
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `nom::IResult`
[INFO] [stderr]    --> src/scenefile/primitive.rs:141:13
[INFO] [stderr]     |
[INFO] [stderr] 141 |         use nom::IResult;
[INFO] [stderr]     |             ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `nom::IResult`
[INFO] [stderr]    --> src/scenefile/primitive.rs:157:13
[INFO] [stderr]     |
[INFO] [stderr] 157 |         use nom::IResult;
[INFO] [stderr]     |             ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `nom::IResult`
[INFO] [stderr]    --> src/scenefile/primitive.rs:172:13
[INFO] [stderr]     |
[INFO] [stderr] 172 |         use nom::IResult;
[INFO] [stderr]     |             ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `math::point`
[INFO] [stderr]    --> src/scenefile/primitive.rs:187:13
[INFO] [stderr]     |
[INFO] [stderr] 187 |         use math::point;
[INFO] [stderr]     |             ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `nom::IResult`
[INFO] [stderr]    --> src/scenefile/primitive.rs:189:13
[INFO] [stderr]     |
[INFO] [stderr] 189 |         use nom::IResult;
[INFO] [stderr]     |             ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `self`, `translation_matrix`
[INFO] [stderr]  --> src/scenefile/transform.rs:2:12
[INFO] [stderr]   |
[INFO] [stderr] 2 | use math::{self, Vector, Transform, translation_matrix};
[INFO] [stderr]   |            ^^^^                     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `nom`
[INFO] [stderr]   --> src/scenefile/transform.rs:47:9
[INFO] [stderr]    |
[INFO] [stderr] 47 |     use nom;
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `super::*`
[INFO] [stderr]    --> src/scenefile/mod.rs:113:9
[INFO] [stderr]     |
[INFO] [stderr] 113 |     use super::*;
[INFO] [stderr]     |         ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `nom`
[INFO] [stderr]    --> src/scenefile/mod.rs:114:9
[INFO] [stderr]     |
[INFO] [stderr] 114 |     use nom;
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `super::*`
[INFO] [stderr]    --> src/render.rs:257:9
[INFO] [stderr]     |
[INFO] [stderr] 257 |     use super::*;
[INFO] [stderr]     |         ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `colour`
[INFO] [stderr]    --> src/render.rs:259:9
[INFO] [stderr]     |
[INFO] [stderr] 259 |     use colour;
[INFO] [stderr]     |         ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `light::PointLight`
[INFO] [stderr]    --> src/render.rs:263:9
[INFO] [stderr]     |
[INFO] [stderr] 263 |     use light::PointLight;
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `scenefile::SceneError`
[INFO] [stderr]   --> src/main.rs:28:5
[INFO] [stderr]    |
[INFO] [stderr] 28 | use scenefile::SceneError;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Object`
[INFO] [stderr]  --> src/light/point_light.rs:5:33
[INFO] [stderr]   |
[INFO] [stderr] 5 | use primitive::{AxisAlignedBox, Object, Primitive};
[INFO] [stderr]   |                                 ^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Point`, `Vector`
[INFO] [stderr]  --> src/math/transform.rs:2:18
[INFO] [stderr]   |
[INFO] [stderr] 2 | use math::{self, Point, Matrix, Vector};
[INFO] [stderr]   |                  ^^^^^          ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `degrees`
[INFO] [stderr]  --> src/math/transform.rs:3:29
[INFO] [stderr]   |
[INFO] [stderr] 3 | use units::{Angle, Radians, degrees};
[INFO] [stderr]   |                             ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Vector`
[INFO] [stderr]  --> src/primitive/aabb.rs:1:19
[INFO] [stderr]   |
[INFO] [stderr] 1 | use math::{Point, Vector};
[INFO] [stderr]   |                   ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `self`
[INFO] [stderr]  --> src/primitive/_box.rs:2:12
[INFO] [stderr]   |
[INFO] [stderr] 2 | use math::{self, point, Point, Vector};
[INFO] [stderr]   |            ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Object`
[INFO] [stderr]  --> src/primitive/_box.rs:3:33
[INFO] [stderr]   |
[INFO] [stderr] 3 | use primitive::{AxisAlignedBox, Object, Primitive};
[INFO] [stderr]   |                                 ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Matrix`
[INFO] [stderr]  --> src/primitive/union.rs:2:12
[INFO] [stderr]   |
[INFO] [stderr] 2 | use math::{Matrix, Point, Transform, Vector};
[INFO] [stderr]   |            ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Finish`
[INFO] [stderr]  --> src/primitive/object.rs:4:16
[INFO] [stderr]   |
[INFO] [stderr] 4 | use material::{Finish, Material};
[INFO] [stderr]   |                ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Vector`
[INFO] [stderr]  --> src/primitive/object.rs:5:30
[INFO] [stderr]   |
[INFO] [stderr] 5 | use math::{Point, Transform, Vector};
[INFO] [stderr]   |                              ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `math::point`
[INFO] [stderr]   --> src/primitive/object.rs:87:13
[INFO] [stderr]    |
[INFO] [stderr] 87 |         use math::point;
[INFO] [stderr]    |             ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Object`
[INFO] [stderr]  --> src/primitive/plane.rs:2:17
[INFO] [stderr]   |
[INFO] [stderr] 2 | use primitive::{Object, Primitive};
[INFO] [stderr]   |                 ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Object`
[INFO] [stderr]  --> src/primitive/sphere.rs:5:33
[INFO] [stderr]   |
[INFO] [stderr] 5 | use primitive::{AxisAlignedBox, Object, Primitive};
[INFO] [stderr]   |                                 ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::boxed`
[INFO] [stderr]   --> src/primitive/mod.rs:17:5
[INFO] [stderr]    |
[INFO] [stderr] 17 | use std::boxed;
[INFO] [stderr]    |     ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::sync::Arc`
[INFO] [stderr]   --> src/primitive/mod.rs:18:5
[INFO] [stderr]    |
[INFO] [stderr] 18 | use std::sync::Arc;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `self`
[INFO] [stderr]  --> src/material.rs:1:14
[INFO] [stderr]   |
[INFO] [stderr] 1 | use colour::{self, Colour};
[INFO] [stderr]   |              ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Light`, `PointLight`
[INFO] [stderr]  --> src/scene.rs:6:13
[INFO] [stderr]   |
[INFO] [stderr] 6 | use light::{Light, PointLight};
[INFO] [stderr]   |             ^^^^^  ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::ops::Deref`
[INFO] [stderr]   --> src/scene.rs:66:21
[INFO] [stderr]    |
[INFO] [stderr] 66 |                 use std::ops::Deref;
[INFO] [stderr]    |                     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Matrix`, `self`
[INFO] [stderr]  --> src/scenefile/constructs.rs:8:12
[INFO] [stderr]   |
[INFO] [stderr] 8 | use math::{self, Matrix, Vector, Transform};
[INFO] [stderr]   |            ^^^^  ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `math::Transform`
[INFO] [stderr]  --> src/scenefile/lights.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | use math::Transform;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Transform`, `Vector`, `self`
[INFO] [stderr]  --> src/scenefile/primitive.rs:4:12
[INFO] [stderr]   |
[INFO] [stderr] 4 | use math::{self, Vector, Transform};
[INFO] [stderr]   |            ^^^^  ^^^^^^  ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `units::degrees`
[INFO] [stderr]  --> src/scenefile/primitive.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use units::degrees;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::str`
[INFO] [stderr]  --> src/scenefile/primitive.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | use std::str;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::cell::RefCell`
[INFO] [stderr]   --> src/scenefile/primitive.rs:86:9
[INFO] [stderr]    |
[INFO] [stderr] 86 |     use std::cell::RefCell;
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `self`, `translation_matrix`
[INFO] [stderr]  --> src/scenefile/transform.rs:2:12
[INFO] [stderr]   |
[INFO] [stderr] 2 | use math::{self, Vector, Transform, translation_matrix};
[INFO] [stderr]   |            ^^^^                     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
[INFO] [stderr]   --> src/scenefile/mod.rs:77:49
[INFO] [stderr]    |
[INFO] [stderr] 77 |                             let mut cause = err.cause();
[INFO] [stderr]    |                                                 ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(deprecated)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
[INFO] [stderr]   --> src/scenefile/mod.rs:82:53
[INFO] [stderr]    |
[INFO] [stderr] 82 |                                         cause = err.cause();
[INFO] [stderr]    |                                                     ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
[INFO] [stderr]   --> src/scenefile/mod.rs:77:49
[INFO] [stderr]    |
[INFO] [stderr] 77 |                             let mut cause = err.cause();
[INFO] [stderr]    |                                                 ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(deprecated)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
[INFO] [stderr]   --> src/scenefile/mod.rs:82:53
[INFO] [stderr]    |
[INFO] [stderr] 82 |                                         cause = err.cause();
[INFO] [stderr]    |                                                     ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `light::Light`
[INFO] [stderr]   --> src/render.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 | use light::Light;
[INFO] [stderr]    |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `scene`
[INFO] [stderr]   --> src/scenefile/lights.rs:11:41
[INFO] [stderr]    |
[INFO] [stderr] 11 | pub fn point_light<'a>(input: &'a [u8], scene: &SceneState) -> IResult<&'a [u8], Object> {
[INFO] [stderr]    |                                         ^^^^^ help: consider using `_scene` instead
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `scene`
[INFO] [stderr]   --> src/scenefile/primitive.rs:17:36
[INFO] [stderr]    |
[INFO] [stderr] 17 | fn sphere<'a, 'b>(input: &'a [u8], scene: &'b SceneState) -> IResult<&'a [u8], Object> {
[INFO] [stderr]    |                                    ^^^^^ help: consider using `_scene` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `scene`
[INFO] [stderr]   --> src/scenefile/primitive.rs:40:34
[INFO] [stderr]    |
[INFO] [stderr] 40 | fn _box<'a, 'b>(input: &'a [u8], scene: &'b SceneState) -> IResult<&'a [u8], Object> {
[INFO] [stderr]    |                                  ^^^^^ help: consider using `_scene` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `scene`
[INFO] [stderr]   --> src/scenefile/primitive.rs:60:35
[INFO] [stderr]    |
[INFO] [stderr] 60 | fn plane<'a, 'b>(input: &'a [u8], scene: &'b SceneState) -> IResult<&'a [u8], Object> {
[INFO] [stderr]    |                                   ^^^^^ help: consider using `_scene` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `object`
[INFO] [stderr]   --> src/primitive/primitive.rs:29:31
[INFO] [stderr]    |
[INFO] [stderr] 29 |     fn accept_children(&self, object: &Object, visitor: &mut SceneVisitor) {}
[INFO] [stderr]    |                               ^^^^^^ help: consider using `_object` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `visitor`
[INFO] [stderr]   --> src/primitive/primitive.rs:29:48
[INFO] [stderr]    |
[INFO] [stderr] 29 |     fn accept_children(&self, object: &Object, visitor: &mut SceneVisitor) {}
[INFO] [stderr]    |                                                ^^^^^^^ help: consider using `_visitor` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `t`
[INFO] [stderr]   --> src/scene.rs:20:34
[INFO] [stderr]    |
[INFO] [stderr] 20 |     fn push_transform(&mut self, t: &Transform) {}
[INFO] [stderr]    |                                  ^ help: consider using `_t` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `r`
[INFO] [stderr]   --> src/light/point_light.rs:28:26
[INFO] [stderr]    |
[INFO] [stderr] 28 |     fn intersects(&self, r: Ray) -> Option<f64> {
[INFO] [stderr]    |                          ^ help: consider using `_r` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `pt`
[INFO] [stderr]   --> src/light/point_light.rs:39:22
[INFO] [stderr]    |
[INFO] [stderr] 39 |     fn normal(&self, pt: Point) -> Vector {
[INFO] [stderr]    |                      ^^ help: consider using `_pt` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `p`
[INFO] [stderr]   --> src/light/point_light.rs:62:27
[INFO] [stderr]    |
[INFO] [stderr] 62 |     fn illuminates(&self, p: Point) -> Option<Colour> {
[INFO] [stderr]    |                           ^ help: consider using `_p` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `r`
[INFO] [stderr]   --> src/primitive/union.rs:20:26
[INFO] [stderr]    |
[INFO] [stderr] 20 |     fn intersects(&self, r: Ray) -> Option<f64> {
[INFO] [stderr]    |                          ^ help: consider using `_r` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `pt`
[INFO] [stderr]   --> src/primitive/union.rs:24:22
[INFO] [stderr]    |
[INFO] [stderr] 24 |     fn normal(&self, pt: Point) -> Vector {
[INFO] [stderr]    |                      ^^ help: consider using `_pt` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `pt`
[INFO] [stderr]   --> src/primitive/plane.rs:24:22
[INFO] [stderr]    |
[INFO] [stderr] 24 |     fn normal(&self, pt: Point) -> Vector {
[INFO] [stderr]    |                      ^^ help: consider using `_pt` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `p`
[INFO] [stderr]   --> src/material.rs:44:33
[INFO] [stderr]    |
[INFO] [stderr] 44 |     pub fn sample<'a>(&'a self, p: Point) -> (Colour, &'a Finish) {
[INFO] [stderr]    |                                 ^ help: consider using `_p` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `r`
[INFO] [stderr]   --> src/scene.rs:88:23
[INFO] [stderr]    |
[INFO] [stderr] 88 |     pub fn sky(&self, r: Ray) -> Colour {
[INFO] [stderr]    |                       ^ help: consider using `_r` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `base`
[INFO] [stderr]   --> src/scenefile/constructs.rs:24:13
[INFO] [stderr]    |
[INFO] [stderr] 24 |         let base = Arc::new(Transform::default());
[INFO] [stderr]    |             ^^^^ help: consider using `_base` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `base`
[INFO] [stderr]   --> src/scenefile/constructs.rs:34:13
[INFO] [stderr]    |
[INFO] [stderr] 34 |         let base = Arc::new(Transform::default());
[INFO] [stderr]    |             ^^^^ help: consider using `_base` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `light::Light`
[INFO] [stderr]   --> src/render.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 | use light::Light;
[INFO] [stderr]    |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `scene`
[INFO] [stderr]   --> src/scenefile/lights.rs:11:41
[INFO] [stderr]    |
[INFO] [stderr] 11 | pub fn point_light<'a>(input: &'a [u8], scene: &SceneState) -> IResult<&'a [u8], Object> {
[INFO] [stderr]    |                                         ^^^^^ help: consider using `_scene` instead
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `scene`
[INFO] [stderr]   --> src/scenefile/primitive.rs:17:36
[INFO] [stderr]    |
[INFO] [stderr] 17 | fn sphere<'a, 'b>(input: &'a [u8], scene: &'b SceneState) -> IResult<&'a [u8], Object> {
[INFO] [stderr]    |                                    ^^^^^ help: consider using `_scene` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `scene`
[INFO] [stderr]   --> src/scenefile/primitive.rs:40:34
[INFO] [stderr]    |
[INFO] [stderr] 40 | fn _box<'a, 'b>(input: &'a [u8], scene: &'b SceneState) -> IResult<&'a [u8], Object> {
[INFO] [stderr]    |                                  ^^^^^ help: consider using `_scene` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `scene`
[INFO] [stderr]   --> src/scenefile/primitive.rs:60:35
[INFO] [stderr]    |
[INFO] [stderr] 60 | fn plane<'a, 'b>(input: &'a [u8], scene: &'b SceneState) -> IResult<&'a [u8], Object> {
[INFO] [stderr]    |                                   ^^^^^ help: consider using `_scene` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `r`
[INFO] [stderr]   --> src/primitive/plane.rs:82:13
[INFO] [stderr]    |
[INFO] [stderr] 82 |         let r = Ray::new(point(0.0, 1.0, 0.0),
[INFO] [stderr]    |             ^ help: consider using `_r` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `object`
[INFO] [stderr]   --> src/primitive/primitive.rs:29:31
[INFO] [stderr]    |
[INFO] [stderr] 29 |     fn accept_children(&self, object: &Object, visitor: &mut SceneVisitor) {}
[INFO] [stderr]    |                               ^^^^^^ help: consider using `_object` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `visitor`
[INFO] [stderr]   --> src/primitive/primitive.rs:29:48
[INFO] [stderr]    |
[INFO] [stderr] 29 |     fn accept_children(&self, object: &Object, visitor: &mut SceneVisitor) {}
[INFO] [stderr]    |                                                ^^^^^^^ help: consider using `_visitor` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `t`
[INFO] [stderr]   --> src/scene.rs:20:34
[INFO] [stderr]    |
[INFO] [stderr] 20 |     fn push_transform(&mut self, t: &Transform) {}
[INFO] [stderr]    |                                  ^ help: consider using `_t` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `r`
[INFO] [stderr]   --> src/light/point_light.rs:28:26
[INFO] [stderr]    |
[INFO] [stderr] 28 |     fn intersects(&self, r: Ray) -> Option<f64> {
[INFO] [stderr]    |                          ^ help: consider using `_r` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `pt`
[INFO] [stderr]   --> src/light/point_light.rs:39:22
[INFO] [stderr]    |
[INFO] [stderr] 39 |     fn normal(&self, pt: Point) -> Vector {
[INFO] [stderr]    |                      ^^ help: consider using `_pt` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `p`
[INFO] [stderr]   --> src/light/point_light.rs:62:27
[INFO] [stderr]    |
[INFO] [stderr] 62 |     fn illuminates(&self, p: Point) -> Option<Colour> {
[INFO] [stderr]    |                           ^ help: consider using `_p` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `r`
[INFO] [stderr]   --> src/primitive/union.rs:20:26
[INFO] [stderr]    |
[INFO] [stderr] 20 |     fn intersects(&self, r: Ray) -> Option<f64> {
[INFO] [stderr]    |                          ^ help: consider using `_r` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `pt`
[INFO] [stderr]   --> src/primitive/union.rs:24:22
[INFO] [stderr]    |
[INFO] [stderr] 24 |     fn normal(&self, pt: Point) -> Vector {
[INFO] [stderr]    |                      ^^ help: consider using `_pt` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `pt`
[INFO] [stderr]   --> src/primitive/plane.rs:24:22
[INFO] [stderr]    |
[INFO] [stderr] 24 |     fn normal(&self, pt: Point) -> Vector {
[INFO] [stderr]    |                      ^^ help: consider using `_pt` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `p`
[INFO] [stderr]   --> src/material.rs:44:33
[INFO] [stderr]    |
[INFO] [stderr] 44 |     pub fn sample<'a>(&'a self, p: Point) -> (Colour, &'a Finish) {
[INFO] [stderr]    |                                 ^ help: consider using `_p` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `r`
[INFO] [stderr]   --> src/scene.rs:88:23
[INFO] [stderr]    |
[INFO] [stderr] 88 |     pub fn sky(&self, r: Ray) -> Colour {
[INFO] [stderr]    |                       ^ help: consider using `_r` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `base`
[INFO] [stderr]   --> src/scenefile/constructs.rs:24:13
[INFO] [stderr]    |
[INFO] [stderr] 24 |         let base = Arc::new(Transform::default());
[INFO] [stderr]    |             ^^^^ help: consider using `_base` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `base`
[INFO] [stderr]   --> src/scenefile/constructs.rs:34:13
[INFO] [stderr]    |
[INFO] [stderr] 34 |         let base = Arc::new(Transform::default());
[INFO] [stderr]    |             ^^^^ help: consider using `_base` instead
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/light/point_light.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 |     pub fn new(pos: Point, colour: Colour) -> PointLight {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `position`
[INFO] [stderr]   --> src/light/point_light.rs:18:5
[INFO] [stderr]    |
[INFO] [stderr] 18 |     pub fn position(&self) -> Point {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `colour`
[INFO] [stderr]   --> src/light/point_light.rs:22:5
[INFO] [stderr]    |
[INFO] [stderr] 22 |     pub fn colour(&self) -> Colour {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `unit_vector`
[INFO] [stderr]   --> src/math/vector.rs:21:1
[INFO] [stderr]    |
[INFO] [stderr] 21 | pub fn unit_vector(x: f64, y: f64, z: f64) -> UnitVector {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `min`
[INFO] [stderr]   --> src/math/mod.rs:11:1
[INFO] [stderr]    |
[INFO] [stderr] 11 | pub fn min<T: PartialOrd>(a: T, b: T) -> T {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `max`
[INFO] [stderr]   --> src/math/mod.rs:20:1
[INFO] [stderr]    |
[INFO] [stderr] 20 | pub fn max<T: PartialOrd>(a: T, b: T) -> T {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `radians`
[INFO] [stderr]    --> src/units/angle.rs:138:1
[INFO] [stderr]     |
[INFO] [stderr] 138 | pub fn radians(n: f64) -> Angle<Radians> {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/primitive/_box.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 |     pub fn new(lower: Point, upper: Point) -> Box {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `lower`
[INFO] [stderr]   --> src/primitive/_box.rs:21:5
[INFO] [stderr]    |
[INFO] [stderr] 21 |     pub fn lower(&self) -> &Point {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `upper`
[INFO] [stderr]   --> src/primitive/_box.rs:25:5
[INFO] [stderr]    |
[INFO] [stderr] 25 |     pub fn upper(&self) -> &Point {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/primitive/union.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 |     pub fn new() -> Union {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `from`
[INFO] [stderr]   --> src/primitive/object.rs:20:5
[INFO] [stderr]    |
[INFO] [stderr] 20 |     pub fn from(p: Arc<Primitive>) -> Object {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `as_primitive`
[INFO] [stderr]   --> src/primitive/object.rs:77:5
[INFO] [stderr]    |
[INFO] [stderr] 77 |     pub fn as_primitive<P: Primitive>(&self) -> Option<&P> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/primitive/sphere.rs:17:5
[INFO] [stderr]    |
[INFO] [stderr] 17 |     pub fn new(loc: Point, radius: f64) -> Sphere {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `with_loc`
[INFO] [stderr]   --> src/camera.rs:33:5
[INFO] [stderr]    |
[INFO] [stderr] 33 |     pub fn with_loc(&self, x: f64, y: f64, z: f64) -> Camera {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `with_dir`
[INFO] [stderr]   --> src/camera.rs:37:5
[INFO] [stderr]    |
[INFO] [stderr] 37 |     pub fn with_dir(&self, x: f64, y: f64, z: f64) -> Camera {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `width`
[INFO] [stderr]   --> src/camera.rs:86:5
[INFO] [stderr]    |
[INFO] [stderr] 86 |     width: isize,
[INFO] [stderr]    |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `height`
[INFO] [stderr]   --> src/camera.rs:87:5
[INFO] [stderr]    |
[INFO] [stderr] 87 |     height: isize,
[INFO] [stderr]    |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/scene.rs:31:5
[INFO] [stderr]    |
[INFO] [stderr] 31 |     pub fn new() -> Scene {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `add_object`
[INFO] [stderr]   --> src/scene.rs:38:5
[INFO] [stderr]    |
[INFO] [stderr] 38 |     pub fn add_object(&mut self, obj: Object) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/scenefile/constructs.rs:23:5
[INFO] [stderr]    |
[INFO] [stderr] 23 |     pub fn new(width: isize, height: isize) -> SceneState {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/scenefile/lights.rs:45:13
[INFO] [stderr]    |
[INFO] [stderr] 45 |         let mut state = SceneState::default();
[INFO] [stderr]    |             ----^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/scenefile/primitive.rs:191:13
[INFO] [stderr]     |
[INFO] [stderr] 191 |         let mut state = SceneState::default();
[INFO] [stderr]     |             ----^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/render.rs:308:13
[INFO] [stderr]     |
[INFO] [stderr] 308 |         let mut s = Scene::new();
[INFO] [stderr]     |             ----^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `BLACK`
[INFO] [stderr]  --> src/colour.rs:9:1
[INFO] [stderr]   |
[INFO] [stderr] 9 | pub const BLACK : Colour = Colour { r: 0.0, g: 0.0, b: 0.0 };
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/light/point_light.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 |     pub fn new(pos: Point, colour: Colour) -> PointLight {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `position`
[INFO] [stderr]   --> src/light/point_light.rs:18:5
[INFO] [stderr]    |
[INFO] [stderr] 18 |     pub fn position(&self) -> Point {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `colour`
[INFO] [stderr]   --> src/light/point_light.rs:22:5
[INFO] [stderr]    |
[INFO] [stderr] 22 |     pub fn colour(&self) -> Colour {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `UnitVector`
[INFO] [stderr]   --> src/math/vector.rs:18:1
[INFO] [stderr]    |
[INFO] [stderr] 18 | pub type UnitVector = Vector;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `unit_vector`
[INFO] [stderr]   --> src/math/vector.rs:21:1
[INFO] [stderr]    |
[INFO] [stderr] 21 | pub fn unit_vector(x: f64, y: f64, z: f64) -> UnitVector {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `min`
[INFO] [stderr]   --> src/math/mod.rs:11:1
[INFO] [stderr]    |
[INFO] [stderr] 11 | pub fn min<T: PartialOrd>(a: T, b: T) -> T {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `max`
[INFO] [stderr]   --> src/math/mod.rs:20:1
[INFO] [stderr]    |
[INFO] [stderr] 20 | pub fn max<T: PartialOrd>(a: T, b: T) -> T {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/primitive/_box.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 |     pub fn new(lower: Point, upper: Point) -> Box {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/primitive/union.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 |     pub fn new() -> Union {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `surface_at`
[INFO] [stderr]   --> src/primitive/object.rs:50:5
[INFO] [stderr]    |
[INFO] [stderr] 50 |     pub fn surface_at(&self, pt: Point) -> SurfaceInfo {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `accept`
[INFO] [stderr]   --> src/primitive/object.rs:81:5
[INFO] [stderr]    |
[INFO] [stderr] 81 |     pub fn accept(&self, visitor: &mut SceneVisitor) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `SurfaceInfo`
[INFO] [stderr]   --> src/primitive/mod.rs:28:1
[INFO] [stderr]    |
[INFO] [stderr] 28 | pub struct SurfaceInfo<'a> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `with_dir`
[INFO] [stderr]   --> src/camera.rs:37:5
[INFO] [stderr]    |
[INFO] [stderr] 37 |     pub fn with_dir(&self, x: f64, y: f64, z: f64) -> Camera {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `width`
[INFO] [stderr]   --> src/camera.rs:86:5
[INFO] [stderr]    |
[INFO] [stderr] 86 |     width: isize,
[INFO] [stderr]    |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `height`
[INFO] [stderr]   --> src/camera.rs:87:5
[INFO] [stderr]    |
[INFO] [stderr] 87 |     height: isize,
[INFO] [stderr]    |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `sample`
[INFO] [stderr]   --> src/material.rs:44:5
[INFO] [stderr]    |
[INFO] [stderr] 44 |     pub fn sample<'a>(&'a self, p: Point) -> (Colour, &'a Finish) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `visit`
[INFO] [stderr]   --> src/scene.rs:42:5
[INFO] [stderr]    |
[INFO] [stderr] 42 |     pub fn visit(&self, v: &mut SceneVisitor) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `lights`
[INFO] [stderr]   --> src/scene.rs:49:5
[INFO] [stderr]    |
[INFO] [stderr] 49 |     pub fn lights<'a>(&'a self) -> Vec<LightInfo> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `LightVisitor`
[INFO] [stderr]   --> src/scene.rs:50:9
[INFO] [stderr]    |
[INFO] [stderr] 50 |         struct LightVisitor {
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `sky`
[INFO] [stderr]   --> src/scene.rs:88:5
[INFO] [stderr]    |
[INFO] [stderr] 88 |     pub fn sky(&self, r: Ray) -> Colour {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `RenderOptions`
[INFO] [stderr]   --> src/render.rs:13:1
[INFO] [stderr]    |
[INFO] [stderr] 13 | pub struct RenderOptions {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `render`
[INFO] [stderr]   --> src/render.rs:19:1
[INFO] [stderr]    |
[INFO] [stderr] 19 | pub fn render(scene: &Scene, options: RenderOptions) -> Option<RgbaImage> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `pack_pixel`
[INFO] [stderr]   --> src/render.rs:76:1
[INFO] [stderr]    |
[INFO] [stderr] 76 | fn pack_pixel(c: Colour) -> Rgba<u8> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `obj`
[INFO] [stderr]   --> src/render.rs:89:5
[INFO] [stderr]    |
[INFO] [stderr] 89 |     obj: &'a Object,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `point`
[INFO] [stderr]   --> src/render.rs:91:5
[INFO] [stderr]    |
[INFO] [stderr] 91 |     point: Point,
[INFO] [stderr]    |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `blinn_phong_highlight`
[INFO] [stderr]    --> src/render.rs:128:1
[INFO] [stderr]     |
[INFO] [stderr] 128 | / fn blinn_phong_highlight(viewdir: UnitVector,
[INFO] [stderr] 129 | |                          light_ray: Ray,
[INFO] [stderr] 130 | |                          surface_normal: UnitVector,
[INFO] [stderr] 131 | |                          light_colour: Colour,
[INFO] [stderr] ...   |
[INFO] [stderr] 142 | |     }
[INFO] [stderr] 143 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `light_surface`
[INFO] [stderr]    --> src/render.rs:148:1
[INFO] [stderr]     |
[INFO] [stderr] 148 | / fn light_surface(viewdir: UnitVector,
[INFO] [stderr] 149 | |                  surface_pt: Point,
[INFO] [stderr] 150 | |                  surface_normal: UnitVector,
[INFO] [stderr] 151 | |                  surface_colour: Colour,
[INFO] [stderr] ...   |
[INFO] [stderr] 181 | |     result
[INFO] [stderr] 182 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `reflect`
[INFO] [stderr]    --> src/render.rs:196:1
[INFO] [stderr]     |
[INFO] [stderr] 196 | fn reflect(inbound: Ray, pt: Point, normal: Vector) -> Ray {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `trace`
[INFO] [stderr]    --> src/render.rs:209:1
[INFO] [stderr]     |
[INFO] [stderr] 209 | fn trace(inbound_ray: Ray, scene: &Scene, lights: &Vec<LightInfo>) -> Colour {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Args`
[INFO] [stderr]   --> src/main.rs:73:1
[INFO] [stderr]    |
[INFO] [stderr] 73 | struct Args {
[INFO] [stderr]    | ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `parse_args`
[INFO] [stderr]   --> src/main.rs:80:1
[INFO] [stderr]    |
[INFO] [stderr] 80 | fn parse_args() -> Args {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/scenefile/mod.rs:118:9
[INFO] [stderr]     |
[INFO] [stderr] 118 |         super::load_scene("Hello");
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_must_use)] on by default
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/scenefile/mod.rs:123:9
[INFO] [stderr]     |
[INFO] [stderr] 123 |         super::load_scene("scenes/example.rg");
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 56.44s
[INFO] running `"docker" "inspect" "66011b365d08c4f6f0b93cf6704c183287a554a3b7912189c7743f14c60d575b"`
[INFO] running `"docker" "rm" "-f" "66011b365d08c4f6f0b93cf6704c183287a554a3b7912189c7743f14c60d575b"`
[INFO] [stdout] 66011b365d08c4f6f0b93cf6704c183287a554a3b7912189c7743f14c60d575b