[INFO] cloning repository https://github.com/dbearden/Ray-Tracer-Challenge
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dbearden/Ray-Tracer-Challenge" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdbearden%2FRay-Tracer-Challenge", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdbearden%2FRay-Tracer-Challenge'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 784d088220536f64b204a6a82a857f3b44ab9f67
[INFO] testing dbearden/Ray-Tracer-Challenge/784d088220536f64b204a6a82a857f3b44ab9f67 against nightly-2024-10-28 for randomize-layout
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdbearden%2FRay-Tracer-Challenge" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/dbearden/Ray-Tracer-Challenge on toolchain nightly-2024-10-28
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+nightly-2024-10-28" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/dbearden/Ray-Tracer-Challenge
[INFO] finished tweaking git repo https://github.com/dbearden/Ray-Tracer-Challenge
[INFO] tweaked toml for git repo https://github.com/dbearden/Ray-Tracer-Challenge written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/dbearden/Ray-Tracer-Challenge already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+nightly-2024-10-28" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+nightly-2024-10-28" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2df896b56811a4a75028b1eb153b93c827dacafb649ea662e08f589f2ad0d125
[INFO] running `Command { std: "docker" "start" "-a" "2df896b56811a4a75028b1eb153b93c827dacafb649ea662e08f589f2ad0d125", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2df896b56811a4a75028b1eb153b93c827dacafb649ea662e08f589f2ad0d125", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2df896b56811a4a75028b1eb153b93c827dacafb649ea662e08f589f2ad0d125", kill_on_drop: false }`
[INFO] [stdout] 2df896b56811a4a75028b1eb153b93c827dacafb649ea662e08f589f2ad0d125
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+nightly-2024-10-28" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 94d37fd6fc32de48707d4bb31e4593e95a2493839c527a1212cfcd7b8aa455f7
[INFO] running `Command { std: "docker" "start" "-a" "94d37fd6fc32de48707d4bb31e4593e95a2493839c527a1212cfcd7b8aa455f7", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling float-cmp v0.8.0
[INFO] [stderr]    Compiling ray_tracer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the feature `generic_const_exprs` is incomplete and may not be safe to use and/or cause compiler crashes
[INFO] [stdout]  --> src/bin/ch3/main.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(generic_const_exprs)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: see issue #76560 <https://github.com/rust-lang/rust/issues/76560> for more information
[INFO] [stdout]   = note: `#[warn(incomplete_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `vector::Vector`
[INFO] [stdout]  --> src/bin/ch3/tuple/mod.rs:8:9
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub use vector::Vector;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `generic_const_exprs` is incomplete and may not be safe to use and/or cause compiler crashes
[INFO] [stdout]  --> src/bin/ch7/main.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(generic_const_exprs)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: see issue #76560 <https://github.com/rust-lang/rust/issues/76560> for more information
[INFO] [stdout]   = note: `#[warn(incomplete_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `generic_const_exprs` is incomplete and may not be safe to use and/or cause compiler crashes
[INFO] [stdout]  --> src/bin/ch9/main.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(generic_const_exprs)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: see issue #76560 <https://github.com/rust-lang/rust/issues/76560> for more information
[INFO] [stdout]   = note: `#[warn(incomplete_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `generic_const_exprs` is incomplete and may not be safe to use and/or cause compiler crashes
[INFO] [stdout]  --> src/bin/ch4/main.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(generic_const_exprs)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: see issue #76560 <https://github.com/rust-lang/rust/issues/76560> for more information
[INFO] [stdout]   = note: `#[warn(incomplete_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `generic_const_exprs` is incomplete and may not be safe to use and/or cause compiler crashes
[INFO] [stdout]  --> src/bin/ch8/main.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(generic_const_exprs)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: see issue #76560 <https://github.com/rust-lang/rust/issues/76560> for more information
[INFO] [stdout]   = note: `#[warn(incomplete_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `path::is_separator`
[INFO] [stdout]  --> src/bin/ch8/world.rs:1:26
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{cell::RefCell, path::is_separator, rc::Rc};
[INFO] [stdout]   |                          ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `FRAC_PI_3`
[INFO] [stdout]   --> src/bin/ch8/main.rs:20:30
[INFO] [stdout]    |
[INFO] [stdout] 20 |     f64::consts::{FRAC_PI_2, FRAC_PI_3, FRAC_PI_4},
[INFO] [stdout]    |                              ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `generic_const_exprs` is incomplete and may not be safe to use and/or cause compiler crashes
[INFO] [stdout]  --> src/bin/ch5/main.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(generic_const_exprs)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: see issue #76560 <https://github.com/rust-lang/rust/issues/76560> for more information
[INFO] [stdout]   = note: `#[warn(incomplete_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::world::World`
[INFO] [stdout]  --> src/bin/ch9/ray.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use crate::world::World;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `rc::Rc`
[INFO] [stdout]  --> src/bin/ch9/shapes/plane.rs:1:25
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{f64::EPSILON, rc::Rc};
[INFO] [stdout]   |                         ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `float_cmp::approx_eq`
[INFO] [stdout]  --> src/bin/ch9/shapes/plane.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use float_cmp::approx_eq;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `cell::RefCell` and `rc::Rc`
[INFO] [stdout]  --> src/bin/ch9/shapes/sphere.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{cell::RefCell, rc::Rc};
[INFO] [stdout]   |           ^^^^^^^^^^^^^  ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Intersection`
[INFO] [stdout]  --> src/bin/ch9/shapes/sphere.rs:6:11
[INFO] [stdout]   |
[INFO] [stdout] 6 |     ray::{Intersection, Ray},
[INFO] [stdout]   |           ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `cell::RefCell` and `rc::Rc`
[INFO] [stdout]  --> src/bin/ch9/shapes/mod.rs:3:11
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::{cell::RefCell, fmt::Debug, rc::Rc};
[INFO] [stdout]   |           ^^^^^^^^^^^^^              ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Intersection`
[INFO] [stdout]   --> src/bin/ch9/shapes/mod.rs:11:11
[INFO] [stdout]    |
[INFO] [stdout] 11 |     ray::{Intersection, Ray},
[INFO] [stdout]    |           ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `path::is_separator`
[INFO] [stdout]  --> src/bin/ch9/world.rs:1:26
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{cell::RefCell, path::is_separator, rc::Rc};
[INFO] [stdout]   |                          ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `FRAC_PI_6`
[INFO] [stdout]   --> src/bin/ch9/main.rs:20:52
[INFO] [stdout]    |
[INFO] [stdout] 20 |     f64::consts::{FRAC_PI_2, FRAC_PI_3, FRAC_PI_4, FRAC_PI_6},
[INFO] [stdout]    |                                                    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `generic_const_exprs` is incomplete and may not be safe to use and/or cause compiler crashes
[INFO] [stdout]  --> src/bin/ch6/main.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(generic_const_exprs)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: see issue #76560 <https://github.com/rust-lang/rust/issues/76560> for more information
[INFO] [stdout]   = note: `#[warn(incomplete_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `generic_const_exprs` is incomplete and may not be safe to use and/or cause compiler crashes
[INFO] [stdout]  --> src/bin/ch12/main.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(generic_const_exprs)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: see issue #76560 <https://github.com/rust-lang/rust/issues/76560> for more information
[INFO] [stdout]   = note: `#[warn(incomplete_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `DEFAULT_REFLECTION_COUNT`
[INFO] [stdout]  --> src/bin/ch12/camera.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     DEFAULT_REFLECTION_COUNT,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `generic_const_exprs` is incomplete and may not be safe to use and/or cause compiler crashes
[INFO] [stdout]  --> src/bin/ch11/main.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(generic_const_exprs)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: see issue #76560 <https://github.com/rust-lang/rust/issues/76560> for more information
[INFO] [stdout]   = note: `#[warn(incomplete_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `cell::RefCell` and `rc::Rc`
[INFO] [stdout]  --> src/bin/ch12/materials.rs:2:11
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::{cell::RefCell, rc::Rc};
[INFO] [stdout]   |           ^^^^^^^^^^^^^  ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `dot` and `cross` are never used
[INFO] [stdout]   --> src/bin/ch1/tuple.rs:79:12
[INFO] [stdout]    |
[INFO] [stdout] 65 | impl Vector {
[INFO] [stdout]    | ----------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 79 |     pub fn dot(&self, other: Self) -> f64 {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 83 |     pub fn cross(&self, other: Self) -> Self {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `pattern::Stripe`
[INFO] [stdout]  --> src/bin/ch12/materials.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     pattern::Stripe,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `cell::RefCell` and `rc::Rc`
[INFO] [stdout]  --> src/bin/ch12/pattern/stripe.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{cell::RefCell, rc::Rc};
[INFO] [stdout]   |           ^^^^^^^^^^^^^  ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `generic_const_exprs` is incomplete and may not be safe to use and/or cause compiler crashes
[INFO] [stdout]  --> src/bin/ch13/main.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(generic_const_exprs)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: see issue #76560 <https://github.com/rust-lang/rust/issues/76560> for more information
[INFO] [stdout]   = note: `#[warn(incomplete_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `shape::Shape`
[INFO] [stdout]  --> src/bin/ch12/pattern/stripe.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     shape::Shape,
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `cell::RefCell` and `rc::Rc`
[INFO] [stdout]  --> src/bin/ch12/pattern/mod.rs:5:11
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::{cell::RefCell, fmt::Debug, rc::Rc};
[INFO] [stdout]   |           ^^^^^^^^^^^^^              ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `transformations::Transformation`
[INFO] [stdout]   --> src/bin/ch12/pattern/mod.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 |     transformations::Transformation,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `World`
[INFO] [stdout]  --> src/bin/ch12/ray.rs:5:34
[INFO] [stdout]   |
[INFO] [stdout] 5 | use crate::world::{Computations, World};
[INFO] [stdout]   |                                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Point`
[INFO] [stdout]  --> src/bin/ch12/shape/cube.rs:6:13
[INFO] [stdout]   |
[INFO] [stdout] 6 |     tuple::{Point, Tuple, Vector},
[INFO] [stdout]   |             ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `rc::Rc`
[INFO] [stdout]  --> src/bin/ch12/shape/plane.rs:1:25
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{f64::EPSILON, rc::Rc};
[INFO] [stdout]   |                         ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `float_cmp::approx_eq`
[INFO] [stdout]  --> src/bin/ch12/shape/plane.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use float_cmp::approx_eq;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `cell::RefCell` and `rc::Rc`
[INFO] [stdout]  --> src/bin/ch12/shape/sphere.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{cell::RefCell, rc::Rc};
[INFO] [stdout]   |           ^^^^^^^^^^^^^  ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Intersection`
[INFO] [stdout]  --> src/bin/ch12/shape/sphere.rs:7:11
[INFO] [stdout]   |
[INFO] [stdout] 7 |     ray::{Intersection, Ray},
[INFO] [stdout]   |           ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `cell::RefCell` and `rc::Rc`
[INFO] [stdout]  --> src/bin/ch12/shape/mod.rs:4:11
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::{cell::RefCell, fmt::Debug, rc::Rc};
[INFO] [stdout]   |           ^^^^^^^^^^^^^              ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Intersection` and `pattern::Pattern`
[INFO] [stdout]   --> src/bin/ch12/shape/mod.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 |     pattern::Pattern,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 14 |     ray::{Intersection, Ray},
[INFO] [stdout]    |           ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `materials::Material`
[INFO] [stdout]   --> src/bin/ch12/main.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 | use materials::Material;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `io::Write`
[INFO] [stdout]  --> src/bin/ch2/main.rs:2:11
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::{io::Write};
[INFO] [stdout]   |           ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `FRAC_PI_3`, `FRAC_PI_4`, and `FRAC_PI_6`
[INFO] [stdout]   --> src/bin/ch12/main.rs:24:30
[INFO] [stdout]    |
[INFO] [stdout] 24 |     f64::consts::{FRAC_PI_2, FRAC_PI_3, FRAC_PI_4, FRAC_PI_6},
[INFO] [stdout]    |                              ^^^^^^^^^  ^^^^^^^^^  ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Gradient`, `Ring`, and `lights::PointLight`
[INFO] [stdout]   --> src/bin/ch12/main.rs:33:5
[INFO] [stdout]    |
[INFO] [stdout] 33 |     lights::PointLight,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 34 |     pattern::{Checkerboard, Gradient, Pattern, Ring, Stripe},
[INFO] [stdout]    |                             ^^^^^^^^           ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `DEFAULT_REFLECTION_COUNT`
[INFO] [stdout]  --> src/bin/ch11/camera.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     DEFAULT_REFLECTION_COUNT,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `cell::RefCell` and `rc::Rc`
[INFO] [stdout]  --> src/bin/ch11/materials.rs:2:11
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::{cell::RefCell, rc::Rc};
[INFO] [stdout]   |           ^^^^^^^^^^^^^  ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `pattern::Stripe`
[INFO] [stdout]  --> src/bin/ch11/materials.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     pattern::Stripe,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `cell::RefCell` and `rc::Rc`
[INFO] [stdout]  --> src/bin/ch11/pattern/stripe.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{cell::RefCell, rc::Rc};
[INFO] [stdout]   |           ^^^^^^^^^^^^^  ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `shape::Shape`
[INFO] [stdout]  --> src/bin/ch11/pattern/stripe.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     shape::Shape,
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `cell::RefCell` and `rc::Rc`
[INFO] [stdout]  --> src/bin/ch11/pattern/mod.rs:5:11
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::{cell::RefCell, fmt::Debug, rc::Rc};
[INFO] [stdout]   |           ^^^^^^^^^^^^^              ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `transformations::Transformation`
[INFO] [stdout]   --> src/bin/ch11/pattern/mod.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 |     transformations::Transformation,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `generic_const_exprs` is incomplete and may not be safe to use and/or cause compiler crashes
[INFO] [stdout]  --> src/bin/ch10/main.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(generic_const_exprs)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: see issue #76560 <https://github.com/rust-lang/rust/issues/76560> for more information
[INFO] [stdout]   = note: `#[warn(incomplete_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `World`
[INFO] [stdout]  --> src/bin/ch11/ray.rs:5:34
[INFO] [stdout]   |
[INFO] [stdout] 5 | use crate::world::{Computations, World};
[INFO] [stdout]   |                                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `rc::Rc`
[INFO] [stdout]  --> src/bin/ch11/shape/plane.rs:1:25
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{f64::EPSILON, rc::Rc};
[INFO] [stdout]   |                         ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `float_cmp::approx_eq`
[INFO] [stdout]  --> src/bin/ch11/shape/plane.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use float_cmp::approx_eq;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `cell::RefCell` and `rc::Rc`
[INFO] [stdout]  --> src/bin/ch11/shape/sphere.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{cell::RefCell, rc::Rc};
[INFO] [stdout]   |           ^^^^^^^^^^^^^  ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Intersection`
[INFO] [stdout]  --> src/bin/ch11/shape/sphere.rs:7:11
[INFO] [stdout]   |
[INFO] [stdout] 7 |     ray::{Intersection, Ray},
[INFO] [stdout]   |           ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `cell::RefCell` and `rc::Rc`
[INFO] [stdout]  --> src/bin/ch11/shape/mod.rs:3:11
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::{cell::RefCell, fmt::Debug, rc::Rc};
[INFO] [stdout]   |           ^^^^^^^^^^^^^              ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Intersection` and `pattern::Pattern`
[INFO] [stdout]   --> src/bin/ch11/shape/mod.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     pattern::Pattern,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 12 |     ray::{Intersection, Ray},
[INFO] [stdout]    |           ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `FRAC_PI_3`, `FRAC_PI_4`, and `FRAC_PI_6`
[INFO] [stdout]   --> src/bin/ch11/main.rs:22:30
[INFO] [stdout]    |
[INFO] [stdout] 22 |     f64::consts::{FRAC_PI_2, FRAC_PI_3, FRAC_PI_4, FRAC_PI_6},
[INFO] [stdout]    |                              ^^^^^^^^^  ^^^^^^^^^  ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Gradient`, `Ring`, `Stripe`, and `lights::PointLight`
[INFO] [stdout]   --> src/bin/ch11/main.rs:31:5
[INFO] [stdout]    |
[INFO] [stdout] 31 |     lights::PointLight,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 32 |     pattern::{Checkerboard, Gradient, Pattern, Ring, Stripe},
[INFO] [stdout]    |                             ^^^^^^^^           ^^^^  ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `cell::RefCell` and `rc::Rc`
[INFO] [stdout]  --> src/bin/ch10/materials.rs:2:11
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::{cell::RefCell, rc::Rc};
[INFO] [stdout]   |           ^^^^^^^^^^^^^  ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `pattern::Stripe`
[INFO] [stdout]  --> src/bin/ch10/materials.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     pattern::Stripe,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `cell::RefCell` and `rc::Rc`
[INFO] [stdout]  --> src/bin/ch10/pattern/stripe.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{cell::RefCell, rc::Rc};
[INFO] [stdout]   |           ^^^^^^^^^^^^^  ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `shape::Shape`
[INFO] [stdout]  --> src/bin/ch10/pattern/stripe.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     shape::Shape,
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `cell::RefCell` and `rc::Rc`
[INFO] [stdout]  --> src/bin/ch10/pattern/mod.rs:5:11
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::{cell::RefCell, fmt::Debug, rc::Rc};
[INFO] [stdout]   |           ^^^^^^^^^^^^^              ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `transformations::Transformation`
[INFO] [stdout]   --> src/bin/ch10/pattern/mod.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 |     transformations::Transformation,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::world::World`
[INFO] [stdout]  --> src/bin/ch10/ray.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use crate::world::World;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `rc::Rc`
[INFO] [stdout]  --> src/bin/ch10/shape/plane.rs:1:25
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{f64::EPSILON, rc::Rc};
[INFO] [stdout]   |                         ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `float_cmp::approx_eq`
[INFO] [stdout]  --> src/bin/ch10/shape/plane.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use float_cmp::approx_eq;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `cell::RefCell` and `rc::Rc`
[INFO] [stdout]  --> src/bin/ch10/shape/sphere.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{cell::RefCell, rc::Rc};
[INFO] [stdout]   |           ^^^^^^^^^^^^^  ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Intersection`
[INFO] [stdout]  --> src/bin/ch10/shape/sphere.rs:7:11
[INFO] [stdout]   |
[INFO] [stdout] 7 |     ray::{Intersection, Ray},
[INFO] [stdout]   |           ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `DEFAULT_REFLECTION_COUNT`
[INFO] [stdout]  --> src/bin/ch13/camera.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     DEFAULT_REFLECTION_COUNT,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `cell::RefCell` and `rc::Rc`
[INFO] [stdout]  --> src/bin/ch10/shape/mod.rs:3:11
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::{cell::RefCell, fmt::Debug, rc::Rc};
[INFO] [stdout]   |           ^^^^^^^^^^^^^              ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Intersection` and `pattern::Pattern`
[INFO] [stdout]   --> src/bin/ch10/shape/mod.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     pattern::Pattern,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 12 |     ray::{Intersection, Ray},
[INFO] [stdout]    |           ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `FRAC_PI_6`
[INFO] [stdout]   --> src/bin/ch10/main.rs:21:52
[INFO] [stdout]    |
[INFO] [stdout] 21 |     f64::consts::{FRAC_PI_2, FRAC_PI_3, FRAC_PI_4, FRAC_PI_6},
[INFO] [stdout]    |                                                    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `cell::RefCell` and `rc::Rc`
[INFO] [stdout]  --> src/bin/ch13/materials.rs:2:11
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::{cell::RefCell, rc::Rc};
[INFO] [stdout]   |           ^^^^^^^^^^^^^  ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `pattern::Stripe`
[INFO] [stdout]  --> src/bin/ch13/materials.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     pattern::Stripe,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `cell::RefCell` and `rc::Rc`
[INFO] [stdout]  --> src/bin/ch13/pattern/stripe.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{cell::RefCell, rc::Rc};
[INFO] [stdout]   |           ^^^^^^^^^^^^^  ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `shape::Shape`
[INFO] [stdout]  --> src/bin/ch13/pattern/stripe.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     shape::Shape,
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `cell::RefCell` and `rc::Rc`
[INFO] [stdout]  --> src/bin/ch13/pattern/mod.rs:5:11
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::{cell::RefCell, fmt::Debug, rc::Rc};
[INFO] [stdout]   |           ^^^^^^^^^^^^^              ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `transformations::Transformation`
[INFO] [stdout]   --> src/bin/ch13/pattern/mod.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 |     transformations::Transformation,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `World`
[INFO] [stdout]  --> src/bin/ch13/ray.rs:5:34
[INFO] [stdout]   |
[INFO] [stdout] 5 | use crate::world::{Computations, World};
[INFO] [stdout]   |                                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Point`
[INFO] [stdout]  --> src/bin/ch13/shape/cube.rs:6:13
[INFO] [stdout]   |
[INFO] [stdout] 6 |     tuple::{Point, Tuple, Vector},
[INFO] [stdout]   |             ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `rc::Rc`
[INFO] [stdout]  --> src/bin/ch13/shape/plane.rs:1:25
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{f64::EPSILON, rc::Rc};
[INFO] [stdout]   |                         ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `float_cmp::approx_eq`
[INFO] [stdout]  --> src/bin/ch13/shape/plane.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use float_cmp::approx_eq;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `cell::RefCell` and `rc::Rc`
[INFO] [stdout]  --> src/bin/ch13/shape/sphere.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{cell::RefCell, rc::Rc};
[INFO] [stdout]   |           ^^^^^^^^^^^^^  ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Intersection`
[INFO] [stdout]  --> src/bin/ch13/shape/sphere.rs:7:11
[INFO] [stdout]   |
[INFO] [stdout] 7 |     ray::{Intersection, Ray},
[INFO] [stdout]   |           ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `cell::RefCell` and `rc::Rc`
[INFO] [stdout]  --> src/bin/ch13/shape/mod.rs:6:11
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::{cell::RefCell, fmt::Debug, rc::Rc};
[INFO] [stdout]   |           ^^^^^^^^^^^^^              ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Intersection` and `pattern::Pattern`
[INFO] [stdout]   --> src/bin/ch13/shape/mod.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 |     pattern::Pattern,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 18 |     ray::{Intersection, Ray},
[INFO] [stdout]    |           ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::assert_matches::assert_matches`
[INFO] [stdout]   --> src/bin/ch13/world.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | use std::assert_matches::assert_matches;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `materials::Material`
[INFO] [stdout]   --> src/bin/ch13/main.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 | use materials::Material;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `FRAC_PI_3`, `FRAC_PI_4`, and `FRAC_PI_6`
[INFO] [stdout]   --> src/bin/ch13/main.rs:24:30
[INFO] [stdout]    |
[INFO] [stdout] 24 |     f64::consts::{FRAC_PI_2, FRAC_PI_3, FRAC_PI_4, FRAC_PI_6},
[INFO] [stdout]    |                              ^^^^^^^^^  ^^^^^^^^^  ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Cone`, `Gradient`, `Ring`, and `lights::PointLight`
[INFO] [stdout]   --> src/bin/ch13/main.rs:33:5
[INFO] [stdout]    |
[INFO] [stdout] 33 |     lights::PointLight,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 34 |     pattern::{Checkerboard, Gradient, Pattern, Ring, Stripe},
[INFO] [stdout]    |                             ^^^^^^^^           ^^^^
[INFO] [stdout] 35 |     shape::{Cone, Cylinder},
[INFO] [stdout]    |             ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `w`, `dot`, and `cross` are never used
[INFO] [stdout]   --> src/bin/ch2/tuple/mod.rs:15:8
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub trait Tuple: Add + Sub + Neg + Mul<f64> + Div<f64> + Sized {
[INFO] [stdout]    |           ----- methods in this trait
[INFO] [stdout] ...
[INFO] [stdout] 15 |     fn w(&self) -> f64;
[INFO] [stdout]    |        ^
[INFO] [stdout] 16 |     fn dot(&self, other: Self) -> f64 {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 20 |     fn cross(&self, other: Self) -> Self {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `pixel_at` is never used
[INFO] [stdout]   --> src/bin/ch2/canvas/mod.rs:28:12
[INFO] [stdout]    |
[INFO] [stdout] 15 | impl Canvas {
[INFO] [stdout]    | ----------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 28 |     pub fn pixel_at(&self, x: usize, y: usize) -> Color {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/bin/ch11/pattern/mod.rs:20:40
[INFO] [stdout]    |
[INFO] [stdout] 20 |     fn pattern_at_shape(&self, shape: &Shape, point: &Point) -> Color {
[INFO] [stdout]    |                                        ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 20 |     fn pattern_at_shape(&self, shape: &dyn Shape, point: &Point) -> Color {
[INFO] [stdout]    |                                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/bin/ch10/pattern/mod.rs:20:40
[INFO] [stdout]    |
[INFO] [stdout] 20 |     fn pattern_at_shape(&self, shape: &Shape, point: &Point) -> Color {
[INFO] [stdout]    |                                        ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 20 |     fn pattern_at_shape(&self, shape: &dyn Shape, point: &Point) -> Color {
[INFO] [stdout]    |                                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/bin/ch12/pattern/mod.rs:20:40
[INFO] [stdout]    |
[INFO] [stdout] 20 |     fn pattern_at_shape(&self, shape: &Shape, point: &Point) -> Color {
[INFO] [stdout]    |                                        ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 20 |     fn pattern_at_shape(&self, shape: &dyn Shape, point: &Point) -> Color {
[INFO] [stdout]    |                                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/bin/ch13/pattern/mod.rs:20:40
[INFO] [stdout]    |
[INFO] [stdout] 20 |     fn pattern_at_shape(&self, shape: &Shape, point: &Point) -> Color {
[INFO] [stdout]    |                                        ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 20 |     fn pattern_at_shape(&self, shape: &dyn Shape, point: &Point) -> Color {
[INFO] [stdout]    |                                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `pixel_at` is never used
[INFO] [stdout]   --> src/bin/ch4/canvas/mod.rs:28:12
[INFO] [stdout]    |
[INFO] [stdout] 15 | impl Canvas {
[INFO] [stdout]    | ----------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 28 |     pub fn pixel_at(&self, x: usize, y: usize) -> Color {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `transpose` is never used
[INFO] [stdout]   --> src/bin/ch4/matrix.rs:18:12
[INFO] [stdout]    |
[INFO] [stdout] 12 | impl<const N: usize> Matrix<N> {
[INFO] [stdout]    | ------------------------------ method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 18 |     pub fn transpose(&self) -> Self {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple associated items are never used
[INFO] [stdout]   --> src/bin/ch4/matrix.rs:30:15
[INFO] [stdout]    |
[INFO] [stdout] 29 | impl Matrix<4> {
[INFO] [stdout]    | -------------- associated items in this implementation
[INFO] [stdout] 30 |     pub const IDENTITY: Matrix<4> = Matrix {
[INFO] [stdout]    |               ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 38 |     pub fn submatrix(&self, row: usize, col: usize) -> Matrix<3> {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 60 |     pub fn minor(&self, row: usize, col: usize) -> f64 {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 63 |     pub fn cofactor(&self, row: usize, col: usize) -> f64 {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 66 |     pub fn determinant(&self) -> f64 {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 74 |     pub fn is_invertible(&self) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 77 |     pub fn inverse(&self) -> Self {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple associated items are never used
[INFO] [stdout]    --> src/bin/ch4/matrix.rs:92:15
[INFO] [stdout]     |
[INFO] [stdout] 91  | impl Matrix<3> {
[INFO] [stdout]     | -------------- associated items in this implementation
[INFO] [stdout] 92  |     pub const IDENTITY: Matrix<3> = Matrix {
[INFO] [stdout]     |               ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 95  |     pub fn submatrix(&self, row: usize, col: usize) -> Matrix<2> {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 117 |     pub fn minor(&self, row: usize, col: usize) -> f64 {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 120 |     pub fn cofactor(&self, row: usize, col: usize) -> f64 {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 123 |     pub fn determinant(&self) -> f64 {
[INFO] [stdout]     |            ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 131 |     pub fn is_invertible(&self) -> bool {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 134 |     pub fn inverse(&self) -> Self {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `IDENTITY`, `minor`, `cofactor`, `determinant`, `is_invertible`, and `inverse` are never used
[INFO] [stdout]    --> src/bin/ch4/matrix.rs:149:15
[INFO] [stdout]     |
[INFO] [stdout] 148 | impl Matrix<2> {
[INFO] [stdout]     | -------------- associated items in this implementation
[INFO] [stdout] 149 |     pub const IDENTITY: Matrix<2> = Matrix {
[INFO] [stdout]     |               ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 152 |     pub fn minor(&self, row: usize, col: usize) -> f64 {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 155 |     pub fn cofactor(&self, row: usize, col: usize) -> f64 {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 158 |     pub fn determinant(&self) -> f64 {
[INFO] [stdout]     |            ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 161 |     pub fn is_invertible(&self) -> bool {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 164 |     pub fn inverse(&self) -> Self {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `scaling`, `shearing`, `rotation_x`, and `rotation_y` are never used
[INFO] [stdout]  --> src/bin/ch4/transformations.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub trait Transformation {
[INFO] [stdout]   |           -------------- methods in this trait
[INFO] [stdout] 2 |     fn translation(&self, x: f64, y: f64, z: f64) -> Self;
[INFO] [stdout] 3 |     fn scaling(&self, x: f64, y: f64, z: f64) -> Self;
[INFO] [stdout]   |        ^^^^^^^
[INFO] [stdout] 4 |     fn shearing(&self, xy: f64, xz: f64, yx: f64, yz: f64, zx: f64, zy: f64) -> Self;
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 5 |     fn rotation_x(&self, r: f64) -> Self;
[INFO] [stdout]   |        ^^^^^^^^^^
[INFO] [stdout] 6 |     fn rotation_y(&self, r: f64) -> Self;
[INFO] [stdout]   |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `dot`, `cross`, `magnitude`, and `normalize` are never used
[INFO] [stdout]   --> src/bin/ch4/tuple/mod.rs:16:8
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub trait Tuple: Add + Sub + Neg + Mul<f64> + Div<f64> + Sized {
[INFO] [stdout]    |           ----- methods in this trait
[INFO] [stdout] ...
[INFO] [stdout] 16 |     fn dot(&self, other: Self) -> f64 {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 20 |     fn cross(&self, other: Self) -> Self {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 28 |     fn magnitude(&self) -> f64 {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 32 |     fn normalize(&self) -> Self {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Tuple`
[INFO] [stdout]  --> src/bin/ch9/ray.rs:9:20
[INFO] [stdout]   |
[INFO] [stdout] 9 |     tuple::{Point, Tuple, Vector},
[INFO] [stdout]   |                    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Canvas` is never constructed
[INFO] [stdout]  --> src/bin/ch3/canvas/mod.rs:9:12
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub struct Canvas {
[INFO] [stdout]   |            ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `write`, `pixel_at`, and `to_ppm` are never used
[INFO] [stdout]   --> src/bin/ch3/canvas/mod.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout] 15 | impl Canvas {
[INFO] [stdout]    | ----------- associated items in this implementation
[INFO] [stdout] 16 |     pub fn new(width: usize, height: usize) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 24 |     pub fn write(&mut self, x: usize, y: usize, color: Color) {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 28 |     pub fn pixel_at(&self, x: usize, y: usize) -> Color {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 32 |     pub fn to_ppm(&self, filename: &str) -> io::Result<()> {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `IDENTITY`, `is_invertible`, and `inverse` are never used
[INFO] [stdout]    --> src/bin/ch3/matrix.rs:90:15
[INFO] [stdout]     |
[INFO] [stdout] 89  | impl Matrix<3> {
[INFO] [stdout]     | -------------- associated items in this implementation
[INFO] [stdout] 90  |     pub const IDENTITY: Matrix<3> = Matrix {
[INFO] [stdout]     |               ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 129 |     pub fn is_invertible(&self) -> bool {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 132 |     pub fn inverse(&self) -> Self {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `IDENTITY`, `minor`, `cofactor`, `is_invertible`, and `inverse` are never used
[INFO] [stdout]    --> src/bin/ch3/matrix.rs:147:15
[INFO] [stdout]     |
[INFO] [stdout] 146 | impl Matrix<2> {
[INFO] [stdout]     | -------------- associated items in this implementation
[INFO] [stdout] 147 |     pub const IDENTITY: Matrix<2> = Matrix {
[INFO] [stdout]     |               ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 150 |     pub fn minor(&self, row: usize, col: usize) -> f64 {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 153 |     pub fn cofactor(&self, row: usize, col: usize) -> f64 {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 159 |     pub fn is_invertible(&self) -> bool {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 162 |     pub fn inverse(&self) -> Self {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `dot`, `cross`, `magnitude`, and `normalize` are never used
[INFO] [stdout]   --> src/bin/ch3/tuple/mod.rs:16:8
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub trait Tuple: Add + Sub + Neg + Mul<f64> + Div<f64> + Sized {
[INFO] [stdout]    |           ----- methods in this trait
[INFO] [stdout] ...
[INFO] [stdout] 16 |     fn dot(&self, other: Self) -> f64 {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 20 |     fn cross(&self, other: Self) -> Self {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 28 |     fn magnitude(&self) -> f64 {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 32 |     fn normalize(&self) -> Self {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `p`
[INFO] [stdout]   --> src/bin/ch9/shapes/plane.rs:48:31
[INFO] [stdout]    |
[INFO] [stdout] 48 |     fn local_normal_at(&self, p: &crate::tuple::Point) -> crate::tuple::Vector {
[INFO] [stdout]    |                               ^ help: if this is intentional, prefix it with an underscore: `_p`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `pattern::Pattern`
[INFO] [stdout]  --> src/bin/ch10/shape/sphere.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     pattern::Pattern,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `pattern::Pattern`
[INFO] [stdout]   --> src/bin/ch10/ray.rs:10:13
[INFO] [stdout]    |
[INFO] [stdout] 10 | use crate::{pattern::Pattern, shape::Shape};
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Tuple`
[INFO] [stdout]  --> src/bin/ch10/ray.rs:8:20
[INFO] [stdout]   |
[INFO] [stdout] 8 |     tuple::{Point, Tuple, Vector},
[INFO] [stdout]   |                    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `pattern::Pattern`
[INFO] [stdout]  --> src/bin/ch10/shape/plane.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     pattern::Pattern,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Pattern`
[INFO] [stdout]   --> src/bin/ch11/main.rs:32:39
[INFO] [stdout]    |
[INFO] [stdout] 32 |     pattern::{Checkerboard, Gradient, Pattern, Ring, Stripe},
[INFO] [stdout]    |                                       ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `pattern::Pattern`
[INFO] [stdout]  --> src/bin/ch11/shape/sphere.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     pattern::Pattern,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `pattern::Pattern`
[INFO] [stdout]   --> src/bin/ch11/ray.rs:10:13
[INFO] [stdout]    |
[INFO] [stdout] 10 | use crate::{pattern::Pattern, shape::Shape};
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `pattern::Pattern`
[INFO] [stdout]  --> src/bin/ch11/shape/plane.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     pattern::Pattern,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `pixel_at` is never used
[INFO] [stdout]   --> src/bin/ch5/canvas/mod.rs:28:12
[INFO] [stdout]    |
[INFO] [stdout] 15 | impl Canvas {
[INFO] [stdout]    | ----------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 28 |     pub fn pixel_at(&self, x: usize, y: usize) -> Color {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `transpose` is never used
[INFO] [stdout]   --> src/bin/ch5/matrix.rs:18:12
[INFO] [stdout]    |
[INFO] [stdout] 12 | impl<const N: usize> Matrix<N> {
[INFO] [stdout]    | ------------------------------ method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 18 |     pub fn transpose(&self) -> Self {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `IDENTITY`, `is_invertible`, and `inverse` are never used
[INFO] [stdout]    --> src/bin/ch5/matrix.rs:92:15
[INFO] [stdout]     |
[INFO] [stdout] 91  | impl Matrix<3> {
[INFO] [stdout]     | -------------- associated items in this implementation
[INFO] [stdout] 92  |     pub const IDENTITY: Matrix<3> = Matrix {
[INFO] [stdout]     |               ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 131 |     pub fn is_invertible(&self) -> bool {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 134 |     pub fn inverse(&self) -> Self {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `IDENTITY`, `minor`, `cofactor`, `is_invertible`, and `inverse` are never used
[INFO] [stdout]    --> src/bin/ch5/matrix.rs:149:15
[INFO] [stdout]     |
[INFO] [stdout] 148 | impl Matrix<2> {
[INFO] [stdout]     | -------------- associated items in this implementation
[INFO] [stdout] 149 |     pub const IDENTITY: Matrix<2> = Matrix {
[INFO] [stdout]     |               ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 152 |     pub fn minor(&self, row: usize, col: usize) -> f64 {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 155 |     pub fn cofactor(&self, row: usize, col: usize) -> f64 {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 161 |     pub fn is_invertible(&self) -> bool {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 164 |     pub fn inverse(&self) -> Self {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `position` is never used
[INFO] [stdout]   --> src/bin/ch5/ray.rs:20:12
[INFO] [stdout]    |
[INFO] [stdout] 16 | impl Ray {
[INFO] [stdout]    | -------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 20 |     pub fn position(&self, t: f64) -> Point {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `object` is never read
[INFO] [stdout]   --> src/bin/ch5/ray.rs:52:5
[INFO] [stdout]    |
[INFO] [stdout] 50 | pub struct Intersection {
[INFO] [stdout]    |            ------------ field in this struct
[INFO] [stdout] 51 |     t: f64,
[INFO] [stdout] 52 |     object: Rc<RefCell<dyn Shape>>,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Intersection` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `intersections` is never used
[INFO] [stdout]   --> src/bin/ch5/ray.rs:67:4
[INFO] [stdout]    |
[INFO] [stdout] 67 | fn intersections(mut vec: Vec<Intersection>) -> Vec<Intersection> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `id` is never used
[INFO] [stdout]  --> src/bin/ch5/shapes/mod.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub trait Shape: Debug {
[INFO] [stdout]   |           ----- method in this trait
[INFO] [stdout] 8 |     fn id(&self) -> usize;
[INFO] [stdout]   |        ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `shearing`, `rotation_x`, `rotation_y`, and `rotation_z` are never used
[INFO] [stdout]  --> src/bin/ch5/transformations.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub trait Transformation {
[INFO] [stdout]   |           -------------- methods in this trait
[INFO] [stdout] ...
[INFO] [stdout] 4 |     fn shearing(&self, xy: f64, xz: f64, yx: f64, yz: f64, zx: f64, zy: f64) -> Self;
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 5 |     fn rotation_x(&self, r: f64) -> Self;
[INFO] [stdout]   |        ^^^^^^^^^^
[INFO] [stdout] 6 |     fn rotation_y(&self, r: f64) -> Self;
[INFO] [stdout]   |        ^^^^^^^^^^
[INFO] [stdout] 7 |     fn rotation_z(&self, r: f64) -> Self;
[INFO] [stdout]   |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `cross` is never used
[INFO] [stdout]   --> src/bin/ch5/tuple/mod.rs:20:8
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub trait Tuple: Add + Sub + Neg + Mul<f64> + Div<f64> + Sized {
[INFO] [stdout]    |           ----- method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 20 |     fn cross(&self, other: Self) -> Self {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `pattern::Pattern`
[INFO] [stdout]  --> src/bin/ch12/shape/sphere.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     pattern::Pattern,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `pattern::Pattern`
[INFO] [stdout]   --> src/bin/ch12/ray.rs:10:13
[INFO] [stdout]    |
[INFO] [stdout] 10 | use crate::{pattern::Pattern, shape::Shape};
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `pattern::Pattern`
[INFO] [stdout]  --> src/bin/ch12/shape/plane.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     pattern::Pattern,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `transform`
[INFO] [stdout]   --> src/bin/ch11/pattern/checkerboard.rs:39:33
[INFO] [stdout]    |
[INFO] [stdout] 39 |     fn set_transform(&mut self, transform: Matrix<4>) {
[INFO] [stdout]    |                                 ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_transform`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `pixel_at` is never used
[INFO] [stdout]   --> src/bin/ch6/canvas/mod.rs:28:12
[INFO] [stdout]    |
[INFO] [stdout] 15 | impl Canvas {
[INFO] [stdout]    | ----------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 28 |     pub fn pixel_at(&self, x: usize, y: usize) -> Color {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `IDENTITY`, `is_invertible`, and `inverse` are never used
[INFO] [stdout]    --> src/bin/ch6/matrix.rs:92:15
[INFO] [stdout]     |
[INFO] [stdout] 91  | impl Matrix<3> {
[INFO] [stdout]     | -------------- associated items in this implementation
[INFO] [stdout] 92  |     pub const IDENTITY: Matrix<3> = Matrix {
[INFO] [stdout]     |               ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 131 |     pub fn is_invertible(&self) -> bool {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 134 |     pub fn inverse(&self) -> Self {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `IDENTITY`, `minor`, `cofactor`, `is_invertible`, and `inverse` are never used
[INFO] [stdout]    --> src/bin/ch6/matrix.rs:149:15
[INFO] [stdout]     |
[INFO] [stdout] 148 | impl Matrix<2> {
[INFO] [stdout]     | -------------- associated items in this implementation
[INFO] [stdout] 149 |     pub const IDENTITY: Matrix<2> = Matrix {
[INFO] [stdout]     |               ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 152 |     pub fn minor(&self, row: usize, col: usize) -> f64 {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 155 |     pub fn cofactor(&self, row: usize, col: usize) -> f64 {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 161 |     pub fn is_invertible(&self) -> bool {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 164 |     pub fn inverse(&self) -> Self {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `intersections` is never used
[INFO] [stdout]   --> src/bin/ch6/ray.rs:67:4
[INFO] [stdout]    |
[INFO] [stdout] 67 | fn intersections(mut vec: Vec<Intersection>) -> Vec<Intersection> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `set_transform` is never used
[INFO] [stdout]   --> src/bin/ch6/ray.rs:77:8
[INFO] [stdout]    |
[INFO] [stdout] 77 | pub fn set_transform(s: Rc<RefCell<dyn Shape>>, t: Matrix<4>) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `id` and `set_transform` are never used
[INFO] [stdout]   --> src/bin/ch6/shapes/mod.rs:12:8
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub trait Shape: Debug {
[INFO] [stdout]    |           ----- methods in this trait
[INFO] [stdout] 12 |     fn id(&self) -> usize;
[INFO] [stdout]    |        ^^
[INFO] [stdout] 13 |     fn transform(&self) -> Matrix<4>;
[INFO] [stdout] 14 |     fn set_transform(&mut self, transform: Matrix<4>);
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `translation`, `scaling`, `shearing`, `rotation_x`, `rotation_y`, and `rotation_z` are never used
[INFO] [stdout]  --> src/bin/ch6/transformations.rs:2:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub trait Transformation {
[INFO] [stdout]   |           -------------- methods in this trait
[INFO] [stdout] 2 |     fn translation(&self, x: f64, y: f64, z: f64) -> Self;
[INFO] [stdout]   |        ^^^^^^^^^^^
[INFO] [stdout] 3 |     fn scaling(&self, x: f64, y: f64, z: f64) -> Self;
[INFO] [stdout]   |        ^^^^^^^
[INFO] [stdout] 4 |     fn shearing(&self, xy: f64, xz: f64, yx: f64, yz: f64, zx: f64, zy: f64) -> Self;
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 5 |     fn rotation_x(&self, r: f64) -> Self;
[INFO] [stdout]   |        ^^^^^^^^^^
[INFO] [stdout] 6 |     fn rotation_y(&self, r: f64) -> Self;
[INFO] [stdout]   |        ^^^^^^^^^^
[INFO] [stdout] 7 |     fn rotation_z(&self, r: f64) -> Self;
[INFO] [stdout]   |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `transform`
[INFO] [stdout]   --> src/bin/ch10/pattern/checkerboard.rs:39:33
[INFO] [stdout]    |
[INFO] [stdout] 39 |     fn set_transform(&mut self, transform: Matrix<4>) {
[INFO] [stdout]    |                                 ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_transform`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `field_of_view` is never read
[INFO] [stdout]   --> src/bin/ch8/camera.rs:12:9
[INFO] [stdout]    |
[INFO] [stdout] 9  | pub struct Camera {
[INFO] [stdout]    |            ------ field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 12 |     pub field_of_view: f64,
[INFO] [stdout]    |         ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `transform`
[INFO] [stdout]   --> src/bin/ch11/pattern/gradient.rs:34:33
[INFO] [stdout]    |
[INFO] [stdout] 34 |     fn set_transform(&mut self, transform: Matrix<4>) {
[INFO] [stdout]    |                                 ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_transform`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `pixel_at` is never used
[INFO] [stdout]   --> src/bin/ch8/canvas/mod.rs:28:12
[INFO] [stdout]    |
[INFO] [stdout] 15 | impl Canvas {
[INFO] [stdout]    | ----------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 28 |     pub fn pixel_at(&self, x: usize, y: usize) -> Color {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `cross` is never used
[INFO] [stdout]   --> src/bin/ch6/tuple/mod.rs:20:8
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub trait Tuple: Add + Sub + Neg + Mul<f64> + Div<f64> + Sized {
[INFO] [stdout]    |           ----- method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 20 |     fn cross(&self, other: Self) -> Self {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `IDENTITY`, `is_invertible`, and `inverse` are never used
[INFO] [stdout]    --> src/bin/ch8/matrix.rs:92:15
[INFO] [stdout]     |
[INFO] [stdout] 91  | impl Matrix<3> {
[INFO] [stdout]     | -------------- associated items in this implementation
[INFO] [stdout] 92  |     pub const IDENTITY: Matrix<3> = Matrix {
[INFO] [stdout]     |               ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 131 |     pub fn is_invertible(&self) -> bool {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 134 |     pub fn inverse(&self) -> Self {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `IDENTITY`, `minor`, `cofactor`, `is_invertible`, and `inverse` are never used
[INFO] [stdout]    --> src/bin/ch8/matrix.rs:149:15
[INFO] [stdout]     |
[INFO] [stdout] 148 | impl Matrix<2> {
[INFO] [stdout]     | -------------- associated items in this implementation
[INFO] [stdout] 149 |     pub const IDENTITY: Matrix<2> = Matrix {
[INFO] [stdout]     |               ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 152 |     pub fn minor(&self, row: usize, col: usize) -> f64 {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 155 |     pub fn cofactor(&self, row: usize, col: usize) -> f64 {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 161 |     pub fn is_invertible(&self) -> bool {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 164 |     pub fn inverse(&self) -> Self {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `set_transform` is never used
[INFO] [stdout]   --> src/bin/ch8/ray.rs:88:8
[INFO] [stdout]    |
[INFO] [stdout] 88 | pub fn set_transform(s: Rc<RefCell<dyn Shape>>, t: Matrix<4>) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `set_transform` and `get_mut_material` are never used
[INFO] [stdout]   --> src/bin/ch8/shapes/mod.rs:14:8
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub trait Shape: Debug {
[INFO] [stdout]    |           ----- methods in this trait
[INFO] [stdout] ...
[INFO] [stdout] 14 |     fn set_transform(&mut self, transform: Matrix<4>);
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 15 |     fn material(&self) -> Material;
[INFO] [stdout] 16 |     fn get_mut_material(&mut self) -> &mut Material;
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `shearing` and `rotation_z` are never used
[INFO] [stdout]   --> src/bin/ch8/transformations.rs:9:8
[INFO] [stdout]    |
[INFO] [stdout] 6  | pub trait Transformation {
[INFO] [stdout]    |           -------------- methods in this trait
[INFO] [stdout] ...
[INFO] [stdout] 9  |     fn shearing(&self, xy: f64, xz: f64, yx: f64, yz: f64, zx: f64, zy: f64) -> Self;
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 12 |     fn rotation_z(&self, r: f64) -> Self;
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/bin/ch8/world.rs:20:12
[INFO] [stdout]    |
[INFO] [stdout] 19 | impl World {
[INFO] [stdout]    | ---------- associated function in this implementation
[INFO] [stdout] 20 |     pub fn new() -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `t`, `point`, and `inside` are never read
[INFO] [stdout]   --> src/bin/ch8/world.rs:64:5
[INFO] [stdout]    |
[INFO] [stdout] 63 | pub struct Computations {
[INFO] [stdout]    |            ------------ fields in this struct
[INFO] [stdout] 64 |     t: f64,
[INFO] [stdout]    |     ^
[INFO] [stdout] 65 |     object: Rc<RefCell<dyn Shape>>,
[INFO] [stdout] 66 |     point: Point,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 69 |     inside: bool,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Computations` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `transform`
[INFO] [stdout]   --> src/bin/ch11/pattern/ring.rs:29:33
[INFO] [stdout]    |
[INFO] [stdout] 29 |     fn set_transform(&mut self, transform: Matrix<4>) {
[INFO] [stdout]    |                                 ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_transform`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `transform`
[INFO] [stdout]   --> src/bin/ch10/pattern/gradient.rs:34:33
[INFO] [stdout]    |
[INFO] [stdout] 34 |     fn set_transform(&mut self, transform: Matrix<4>) {
[INFO] [stdout]    |                                 ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_transform`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `transform`
[INFO] [stdout]   --> src/bin/ch10/pattern/ring.rs:29:33
[INFO] [stdout]    |
[INFO] [stdout] 29 |     fn set_transform(&mut self, transform: Matrix<4>) {
[INFO] [stdout]    |                                 ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_transform`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `field_of_view` is never read
[INFO] [stdout]   --> src/bin/ch9/camera.rs:12:9
[INFO] [stdout]    |
[INFO] [stdout] 9  | pub struct Camera {
[INFO] [stdout]    |            ------ field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 12 |     pub field_of_view: f64,
[INFO] [stdout]    |         ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `pixel_at` is never used
[INFO] [stdout]   --> src/bin/ch9/canvas/mod.rs:28:12
[INFO] [stdout]    |
[INFO] [stdout] 15 | impl Canvas {
[INFO] [stdout]    | ----------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 28 |     pub fn pixel_at(&self, x: usize, y: usize) -> Color {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `IDENTITY`, `is_invertible`, and `inverse` are never used
[INFO] [stdout]    --> src/bin/ch9/matrix.rs:98:15
[INFO] [stdout]     |
[INFO] [stdout] 97  | impl Matrix<3> {
[INFO] [stdout]     | -------------- associated items in this implementation
[INFO] [stdout] 98  |     pub const IDENTITY: Matrix<3> = Matrix {
[INFO] [stdout]     |               ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 137 |     pub fn is_invertible(&self) -> bool {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 140 |     pub fn inverse(&self) -> Self {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `IDENTITY`, `minor`, `cofactor`, `is_invertible`, and `inverse` are never used
[INFO] [stdout]    --> src/bin/ch9/matrix.rs:155:15
[INFO] [stdout]     |
[INFO] [stdout] 154 | impl Matrix<2> {
[INFO] [stdout]     | -------------- associated items in this implementation
[INFO] [stdout] 155 |     pub const IDENTITY: Matrix<2> = Matrix {
[INFO] [stdout]     |               ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 158 |     pub fn minor(&self, row: usize, col: usize) -> f64 {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 161 |     pub fn cofactor(&self, row: usize, col: usize) -> f64 {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 167 |     pub fn is_invertible(&self) -> bool {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 170 |     pub fn inverse(&self) -> Self {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `set_transform` and `get_mut_material` are never used
[INFO] [stdout]   --> src/bin/ch9/shapes/mod.rs:18:8
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub trait Shape: Debug {
[INFO] [stdout]    |           ----- methods in this trait
[INFO] [stdout] ...
[INFO] [stdout] 18 |     fn set_transform(&mut self, transform: Matrix<4>);
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 19 |     fn get_material(&self) -> Material;
[INFO] [stdout] 20 |     fn get_mut_material(self: &mut Self) -> &mut Material;
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `shearing` and `rotation_z` are never used
[INFO] [stdout]   --> src/bin/ch9/transformations.rs:9:8
[INFO] [stdout]    |
[INFO] [stdout] 6  | pub trait Transformation {
[INFO] [stdout]    |           -------------- methods in this trait
[INFO] [stdout] ...
[INFO] [stdout] 9  |     fn shearing(&self, xy: f64, xz: f64, yx: f64, yz: f64, zx: f64, zy: f64) -> Self;
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 12 |     fn rotation_z(&self, r: f64) -> Self;
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `p`
[INFO] [stdout]   --> src/bin/ch11/shape/plane.rs:49:31
[INFO] [stdout]    |
[INFO] [stdout] 49 |     fn local_normal_at(&self, p: &crate::tuple::Point) -> crate::tuple::Vector {
[INFO] [stdout]    |                               ^ help: if this is intentional, prefix it with an underscore: `_p`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `pattern::Pattern`
[INFO] [stdout]  --> src/bin/ch13/shape/plane.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     pattern::Pattern,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `pattern::Pattern`
[INFO] [stdout]   --> src/bin/ch13/ray.rs:10:13
[INFO] [stdout]    |
[INFO] [stdout] 10 | use crate::{pattern::Pattern, shape::Shape};
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `p`
[INFO] [stdout]   --> src/bin/ch10/shape/plane.rs:49:31
[INFO] [stdout]    |
[INFO] [stdout] 49 |     fn local_normal_at(&self, p: &crate::tuple::Point) -> crate::tuple::Vector {
[INFO] [stdout]    |                               ^ help: if this is intentional, prefix it with an underscore: `_p`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `pattern::Pattern`
[INFO] [stdout]  --> src/bin/ch13/shape/sphere.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     pattern::Pattern,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/bin/ch9/world.rs:20:12
[INFO] [stdout]    |
[INFO] [stdout] 19 | impl World {
[INFO] [stdout]    | ---------- associated function in this implementation
[INFO] [stdout] 20 |     pub fn new() -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `t`, `point`, and `inside` are never read
[INFO] [stdout]   --> src/bin/ch9/world.rs:78:5
[INFO] [stdout]    |
[INFO] [stdout] 77 | pub struct Computations {
[INFO] [stdout]    |            ------------ fields in this struct
[INFO] [stdout] 78 |     t: f64,
[INFO] [stdout]    |     ^
[INFO] [stdout] 79 |     object: Rc<RefCell<dyn Shape>>,
[INFO] [stdout] 80 |     point: Point,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 83 |     inside: bool,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Computations` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `field_of_view` is never read
[INFO] [stdout]   --> src/bin/ch7/camera.rs:12:9
[INFO] [stdout]    |
[INFO] [stdout] 9  | pub struct Camera {
[INFO] [stdout]    |            ------ field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 12 |     pub field_of_view: f64,
[INFO] [stdout]    |         ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `pixel_at` is never used
[INFO] [stdout]   --> src/bin/ch7/canvas/mod.rs:28:12
[INFO] [stdout]    |
[INFO] [stdout] 15 | impl Canvas {
[INFO] [stdout]    | ----------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 28 |     pub fn pixel_at(&self, x: usize, y: usize) -> Color {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `IDENTITY`, `is_invertible`, and `inverse` are never used
[INFO] [stdout]    --> src/bin/ch7/matrix.rs:92:15
[INFO] [stdout]     |
[INFO] [stdout] 91  | impl Matrix<3> {
[INFO] [stdout]     | -------------- associated items in this implementation
[INFO] [stdout] 92  |     pub const IDENTITY: Matrix<3> = Matrix {
[INFO] [stdout]     |               ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 131 |     pub fn is_invertible(&self) -> bool {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 134 |     pub fn inverse(&self) -> Self {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `IDENTITY`, `minor`, `cofactor`, `is_invertible`, and `inverse` are never used
[INFO] [stdout]    --> src/bin/ch7/matrix.rs:149:15
[INFO] [stdout]     |
[INFO] [stdout] 148 | impl Matrix<2> {
[INFO] [stdout]     | -------------- associated items in this implementation
[INFO] [stdout] 149 |     pub const IDENTITY: Matrix<2> = Matrix {
[INFO] [stdout]     |               ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 152 |     pub fn minor(&self, row: usize, col: usize) -> f64 {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 155 |     pub fn cofactor(&self, row: usize, col: usize) -> f64 {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 161 |     pub fn is_invertible(&self) -> bool {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 164 |     pub fn inverse(&self) -> Self {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `set_transform` is never used
[INFO] [stdout]   --> src/bin/ch7/ray.rs:88:8
[INFO] [stdout]    |
[INFO] [stdout] 88 | pub fn set_transform(s: Rc<RefCell<dyn Shape>>, t: Matrix<4>) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `set_transform` and `get_mut_material` are never used
[INFO] [stdout]   --> src/bin/ch7/shapes/mod.rs:14:8
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub trait Shape: Debug {
[INFO] [stdout]    |           ----- methods in this trait
[INFO] [stdout] ...
[INFO] [stdout] 14 |     fn set_transform(&mut self, transform: Matrix<4>);
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 15 |     fn material(&self) -> Material;
[INFO] [stdout] 16 |     fn get_mut_material(&mut self) -> &mut Material;
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `shearing` and `rotation_z` are never used
[INFO] [stdout]   --> src/bin/ch7/transformations.rs:9:8
[INFO] [stdout]    |
[INFO] [stdout] 6  | pub trait Transformation {
[INFO] [stdout]    |           -------------- methods in this trait
[INFO] [stdout] ...
[INFO] [stdout] 9  |     fn shearing(&self, xy: f64, xz: f64, yx: f64, yz: f64, zx: f64, zy: f64) -> Self;
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 12 |     fn rotation_z(&self, r: f64) -> Self;
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/bin/ch7/world.rs:19:12
[INFO] [stdout]    |
[INFO] [stdout] 18 | impl World {
[INFO] [stdout]    | ---------- associated function in this implementation
[INFO] [stdout] 19 |     pub fn new() -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `t` and `inside` are never read
[INFO] [stdout]   --> src/bin/ch7/world.rs:63:5
[INFO] [stdout]    |
[INFO] [stdout] 62 | pub struct Computations {
[INFO] [stdout]    |            ------------ fields in this struct
[INFO] [stdout] 63 |     t: f64,
[INFO] [stdout]    |     ^
[INFO] [stdout] ...
[INFO] [stdout] 68 |     inside: bool,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Computations` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `transform`
[INFO] [stdout]   --> src/bin/ch12/pattern/checkerboard.rs:39:33
[INFO] [stdout]    |
[INFO] [stdout] 39 |     fn set_transform(&mut self, transform: Matrix<4>) {
[INFO] [stdout]    |                                 ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_transform`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `transform`
[INFO] [stdout]   --> src/bin/ch12/pattern/gradient.rs:34:33
[INFO] [stdout]    |
[INFO] [stdout] 34 |     fn set_transform(&mut self, transform: Matrix<4>) {
[INFO] [stdout]    |                                 ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_transform`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `transform`
[INFO] [stdout]   --> src/bin/ch12/pattern/ring.rs:29:33
[INFO] [stdout]    |
[INFO] [stdout] 29 |     fn set_transform(&mut self, transform: Matrix<4>) {
[INFO] [stdout]    |                                 ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_transform`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/bin/ch10/main.rs:87:9
[INFO] [stdout]    |
[INFO] [stdout] 87 |     let mut pattern = Checkerboard::new(Color::WHITE, Color::BLACK);
[INFO] [stdout]    |         ----^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/bin/ch11/main.rs:46:9
[INFO] [stdout]    |
[INFO] [stdout] 46 |     let mut pattern = Checkerboard::new(Color::WHITE, Color::BLACK);
[INFO] [stdout]    |         ----^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `transform`
[INFO] [stdout]   --> src/bin/ch12/shape/cube.rs:58:33
[INFO] [stdout]    |
[INFO] [stdout] 58 |     fn set_transform(&mut self, transform: crate::matrix::Matrix<4>) {
[INFO] [stdout]    |                                 ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_transform`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `material`
[INFO] [stdout]   --> src/bin/ch12/shape/cube.rs:66:32
[INFO] [stdout]    |
[INFO] [stdout] 66 |     fn set_material(&mut self, material: crate::materials::Material) {
[INFO] [stdout]    |                                ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_material`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `transform`
[INFO] [stdout]   --> src/bin/ch13/pattern/checkerboard.rs:39:33
[INFO] [stdout]    |
[INFO] [stdout] 39 |     fn set_transform(&mut self, transform: Matrix<4>) {
[INFO] [stdout]    |                                 ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_transform`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `transform`
[INFO] [stdout]   --> src/bin/ch13/pattern/gradient.rs:34:33
[INFO] [stdout]    |
[INFO] [stdout] 34 |     fn set_transform(&mut self, transform: Matrix<4>) {
[INFO] [stdout]    |                                 ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_transform`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `p`
[INFO] [stdout]   --> src/bin/ch12/shape/plane.rs:49:31
[INFO] [stdout]    |
[INFO] [stdout] 49 |     fn local_normal_at(&self, p: &crate::tuple::Point) -> crate::tuple::Vector {
[INFO] [stdout]    |                               ^ help: if this is intentional, prefix it with an underscore: `_p`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `transform`
[INFO] [stdout]   --> src/bin/ch13/pattern/ring.rs:29:33
[INFO] [stdout]    |
[INFO] [stdout] 29 |     fn set_transform(&mut self, transform: Matrix<4>) {
[INFO] [stdout]    |                                 ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_transform`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `field_of_view` is never read
[INFO] [stdout]   --> src/bin/ch10/camera.rs:12:9
[INFO] [stdout]    |
[INFO] [stdout] 9  | pub struct Camera {
[INFO] [stdout]    |            ------ field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 12 |     pub field_of_view: f64,
[INFO] [stdout]    |         ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `pixel_at` is never used
[INFO] [stdout]   --> src/bin/ch10/canvas/mod.rs:28:12
[INFO] [stdout]    |
[INFO] [stdout] 15 | impl Canvas {
[INFO] [stdout]    | ----------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 28 |     pub fn pixel_at(&self, x: usize, y: usize) -> Color {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `IDENTITY`, `is_invertible`, and `inverse` are never used
[INFO] [stdout]    --> src/bin/ch10/matrix.rs:98:15
[INFO] [stdout]     |
[INFO] [stdout] 97  | impl Matrix<3> {
[INFO] [stdout]     | -------------- associated items in this implementation
[INFO] [stdout] 98  |     pub const IDENTITY: Matrix<3> = Matrix {
[INFO] [stdout]     |               ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 137 |     pub fn is_invertible(&self) -> bool {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 140 |     pub fn inverse(&self) -> Self {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `IDENTITY`, `minor`, `cofactor`, `is_invertible`, and `inverse` are never used
[INFO] [stdout]    --> src/bin/ch10/matrix.rs:155:15
[INFO] [stdout]     |
[INFO] [stdout] 154 | impl Matrix<2> {
[INFO] [stdout]     | -------------- associated items in this implementation
[INFO] [stdout] 155 |     pub const IDENTITY: Matrix<2> = Matrix {
[INFO] [stdout]     |               ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 158 |     pub fn minor(&self, row: usize, col: usize) -> f64 {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 161 |     pub fn cofactor(&self, row: usize, col: usize) -> f64 {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 167 |     pub fn is_invertible(&self) -> bool {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 170 |     pub fn inverse(&self) -> Self {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `transform` and `set_transform` are never used
[INFO] [stdout]   --> src/bin/ch10/pattern/mod.rs:24:8
[INFO] [stdout]    |
[INFO] [stdout] 18 | pub trait Pattern: Debug {
[INFO] [stdout]    |           ------- methods in this trait
[INFO] [stdout] ...
[INFO] [stdout] 24 |     fn transform(&self) -> Matrix<4>;
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 25 |     fn set_transform(&mut self, transform: Matrix<4>);
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `set_transform`, `set_material`, and `get_mut_material` are never used
[INFO] [stdout]   --> src/bin/ch10/shape/mod.rs:19:8
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub trait Shape: Debug {
[INFO] [stdout]    |           ----- methods in this trait
[INFO] [stdout] ...
[INFO] [stdout] 19 |     fn set_transform(&mut self, transform: Matrix<4>);
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 20 |     fn get_material(&self) -> &Material;
[INFO] [stdout] 21 |     fn set_material(&mut self, material: Material);
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 22 |     fn get_mut_material(&mut self) -> &mut Material;
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `transform`
[INFO] [stdout]   --> src/bin/ch13/shape/cone.rs:75:33
[INFO] [stdout]    |
[INFO] [stdout] 75 |     fn set_transform(&mut self, transform: Matrix<4>) {
[INFO] [stdout]    |                                 ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_transform`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `field_of_view` is never read
[INFO] [stdout]   --> src/bin/ch11/camera.rs:13:9
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub struct Camera {
[INFO] [stdout]    |            ------ field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 13 |     pub field_of_view: f64,
[INFO] [stdout]    |         ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `pixel_at` is never used
[INFO] [stdout]   --> src/bin/ch11/canvas/mod.rs:28:12
[INFO] [stdout]    |
[INFO] [stdout] 15 | impl Canvas {
[INFO] [stdout]    | ----------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 28 |     pub fn pixel_at(&self, x: usize, y: usize) -> Color {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `shearing` and `rotation_z` are never used
[INFO] [stdout]   --> src/bin/ch10/transformations.rs:9:8
[INFO] [stdout]    |
[INFO] [stdout] 6  | pub trait Transformation {
[INFO] [stdout]    |           -------------- methods in this trait
[INFO] [stdout] ...
[INFO] [stdout] 9  |     fn shearing(&self, xy: f64, xz: f64, yx: f64, yz: f64, zx: f64, zy: f64) -> Self;
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 12 |     fn rotation_z(&self, r: f64) -> Self;
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/bin/ch10/world.rs:20:12
[INFO] [stdout]    |
[INFO] [stdout] 19 | impl World {
[INFO] [stdout]    | ---------- associated function in this implementation
[INFO] [stdout] 20 |     pub fn new() -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `IDENTITY`, `is_invertible`, and `inverse` are never used
[INFO] [stdout]    --> src/bin/ch11/matrix.rs:98:15
[INFO] [stdout]     |
[INFO] [stdout] 97  | impl Matrix<3> {
[INFO] [stdout]     | -------------- associated items in this implementation
[INFO] [stdout] 98  |     pub const IDENTITY: Matrix<3> = Matrix {
[INFO] [stdout]     |               ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 137 |     pub fn is_invertible(&self) -> bool {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 140 |     pub fn inverse(&self) -> Self {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `t`, `point`, and `inside` are never read
[INFO] [stdout]   --> src/bin/ch10/world.rs:78:5
[INFO] [stdout]    |
[INFO] [stdout] 77 | pub struct Computations {
[INFO] [stdout]    |            ------------ fields in this struct
[INFO] [stdout] 78 |     t: f64,
[INFO] [stdout]    |     ^
[INFO] [stdout] 79 |     object: Rc<RefCell<dyn Shape>>,
[INFO] [stdout] 80 |     point: Point,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 83 |     inside: bool,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Computations` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `IDENTITY`, `minor`, `cofactor`, `is_invertible`, and `inverse` are never used
[INFO] [stdout]    --> src/bin/ch11/matrix.rs:155:15
[INFO] [stdout]     |
[INFO] [stdout] 154 | impl Matrix<2> {
[INFO] [stdout]     | -------------- associated items in this implementation
[INFO] [stdout] 155 |     pub const IDENTITY: Matrix<2> = Matrix {
[INFO] [stdout]     |               ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 158 |     pub fn minor(&self, row: usize, col: usize) -> f64 {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 161 |     pub fn cofactor(&self, row: usize, col: usize) -> f64 {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 167 |     pub fn is_invertible(&self) -> bool {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 170 |     pub fn inverse(&self) -> Self {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `transform` and `set_transform` are never used
[INFO] [stdout]   --> src/bin/ch11/pattern/mod.rs:24:8
[INFO] [stdout]    |
[INFO] [stdout] 18 | pub trait Pattern: Debug {
[INFO] [stdout]    |           ------- methods in this trait
[INFO] [stdout] ...
[INFO] [stdout] 24 |     fn transform(&self) -> Matrix<4>;
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 25 |     fn set_transform(&mut self, transform: Matrix<4>);
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/bin/ch11/pattern/gradient.rs:15:12
[INFO] [stdout]    |
[INFO] [stdout] 14 | impl Gradient {
[INFO] [stdout]    | ------------- associated function in this implementation
[INFO] [stdout] 15 |     pub fn new(a: Color, b: Color) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/bin/ch11/pattern/ring.rs:15:12
[INFO] [stdout]    |
[INFO] [stdout] 14 | impl Ring {
[INFO] [stdout]    | --------- associated function in this implementation
[INFO] [stdout] 15 |     pub fn new(a: Color, b: Color) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/bin/ch11/pattern/stripe.rs:21:12
[INFO] [stdout]    |
[INFO] [stdout] 20 | impl Stripe {
[INFO] [stdout]    | ----------- associated function in this implementation
[INFO] [stdout] 21 |     pub fn new(a: Color, b: Color) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `set_transform`, `set_material`, and `get_mut_material` are never used
[INFO] [stdout]   --> src/bin/ch11/shape/mod.rs:19:8
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub trait Shape: Debug {
[INFO] [stdout]    |           ----- methods in this trait
[INFO] [stdout] ...
[INFO] [stdout] 19 |     fn set_transform(&mut self, transform: Matrix<4>);
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 20 |     fn get_material(&self) -> &Material;
[INFO] [stdout] 21 |     fn set_material(&mut self, material: Material);
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 22 |     fn get_mut_material(&mut self) -> &mut Material;
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `material`
[INFO] [stdout]   --> src/bin/ch13/shape/cone.rs:83:32
[INFO] [stdout]    |
[INFO] [stdout] 83 |     fn set_material(&mut self, material: Material) {
[INFO] [stdout]    |                                ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_material`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `shearing`, `rotation_y`, and `rotation_z` are never used
[INFO] [stdout]   --> src/bin/ch11/transformations.rs:9:8
[INFO] [stdout]    |
[INFO] [stdout] 6  | pub trait Transformation {
[INFO] [stdout]    |           -------------- methods in this trait
[INFO] [stdout] ...
[INFO] [stdout] 9  |     fn shearing(&self, xy: f64, xz: f64, yx: f64, yz: f64, zx: f64, zy: f64) -> Self;
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 10 |     fn rotation_x(&self, r: f64) -> Self;
[INFO] [stdout] 11 |     fn rotation_y(&self, r: f64) -> Self;
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 12 |     fn rotation_z(&self, r: f64) -> Self;
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `transform`
[INFO] [stdout]   --> src/bin/ch13/shape/cube.rs:58:33
[INFO] [stdout]    |
[INFO] [stdout] 58 |     fn set_transform(&mut self, transform: crate::matrix::Matrix<4>) {
[INFO] [stdout]    |                                 ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_transform`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `magnitude` is never used
[INFO] [stdout]   --> src/bin/ch11/tuple/color.rs:26:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | impl Color {
[INFO] [stdout]    | ---------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 26 |     pub fn magnitude(&self) -> f64 {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/bin/ch11/world.rs:20:12
[INFO] [stdout]    |
[INFO] [stdout] 19 | impl World {
[INFO] [stdout]    | ---------- associated function in this implementation
[INFO] [stdout] 20 |     pub fn new() -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `material`
[INFO] [stdout]   --> src/bin/ch13/shape/cube.rs:66:32
[INFO] [stdout]    |
[INFO] [stdout] 66 |     fn set_material(&mut self, material: crate::materials::Material) {
[INFO] [stdout]    |                                ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_material`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `t`, `point`, and `inside` are never read
[INFO] [stdout]    --> src/bin/ch11/world.rs:159:9
[INFO] [stdout]     |
[INFO] [stdout] 158 | pub struct Computations {
[INFO] [stdout]     |            ------------ fields in this struct
[INFO] [stdout] 159 |     pub t: f64,
[INFO] [stdout]     |         ^
[INFO] [stdout] 160 |     pub object: Rc<RefCell<dyn Shape>>,
[INFO] [stdout] 161 |     pub point: Point,
[INFO] [stdout]     |         ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 165 |     pub inside: bool,
[INFO] [stdout]     |         ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Computations` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `transform`
[INFO] [stdout]   --> src/bin/ch13/shape/cylinder.rs:76:33
[INFO] [stdout]    |
[INFO] [stdout] 76 |     fn set_transform(&mut self, transform: crate::matrix::Matrix<4>) {
[INFO] [stdout]    |                                 ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_transform`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `material`
[INFO] [stdout]   --> src/bin/ch13/shape/cylinder.rs:84:32
[INFO] [stdout]    |
[INFO] [stdout] 84 |     fn set_material(&mut self, material: crate::materials::Material) {
[INFO] [stdout]    |                                ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_material`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `p`
[INFO] [stdout]   --> src/bin/ch13/shape/plane.rs:49:31
[INFO] [stdout]    |
[INFO] [stdout] 49 |     fn local_normal_at(&self, p: &crate::tuple::Point) -> crate::tuple::Vector {
[INFO] [stdout]    |                               ^ help: if this is intentional, prefix it with an underscore: `_p`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `float_cmp` is never used
[INFO] [stdout]    --> src/bin/ch12/main.rs:144:4
[INFO] [stdout]     |
[INFO] [stdout] 144 | fn float_cmp(first: &f64, second: &f64) -> std::cmp::Ordering {
[INFO] [stdout]     |    ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `field_of_view` is never read
[INFO] [stdout]   --> src/bin/ch12/camera.rs:13:9
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub struct Camera {
[INFO] [stdout]    |            ------ field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 13 |     pub field_of_view: f64,
[INFO] [stdout]    |         ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `pixel_at` is never used
[INFO] [stdout]   --> src/bin/ch12/canvas/mod.rs:28:12
[INFO] [stdout]    |
[INFO] [stdout] 15 | impl Canvas {
[INFO] [stdout]    | ----------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 28 |     pub fn pixel_at(&self, x: usize, y: usize) -> Color {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `IDENTITY`, `is_invertible`, and `inverse` are never used
[INFO] [stdout]    --> src/bin/ch12/matrix.rs:98:15
[INFO] [stdout]     |
[INFO] [stdout] 97  | impl Matrix<3> {
[INFO] [stdout]     | -------------- associated items in this implementation
[INFO] [stdout] 98  |     pub const IDENTITY: Matrix<3> = Matrix {
[INFO] [stdout]     |               ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 137 |     pub fn is_invertible(&self) -> bool {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 140 |     pub fn inverse(&self) -> Self {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `IDENTITY`, `minor`, `cofactor`, `is_invertible`, and `inverse` are never used
[INFO] [stdout]    --> src/bin/ch12/matrix.rs:155:15
[INFO] [stdout]     |
[INFO] [stdout] 154 | impl Matrix<2> {
[INFO] [stdout]     | -------------- associated items in this implementation
[INFO] [stdout] 155 |     pub const IDENTITY: Matrix<2> = Matrix {
[INFO] [stdout]     |               ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 158 |     pub fn minor(&self, row: usize, col: usize) -> f64 {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 161 |     pub fn cofactor(&self, row: usize, col: usize) -> f64 {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 167 |     pub fn is_invertible(&self) -> bool {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 170 |     pub fn inverse(&self) -> Self {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `transform` is never used
[INFO] [stdout]   --> src/bin/ch12/pattern/mod.rs:24:8
[INFO] [stdout]    |
[INFO] [stdout] 18 | pub trait Pattern: Debug {
[INFO] [stdout]    |           ------- method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 24 |     fn transform(&self) -> Matrix<4>;
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/bin/ch12/pattern/gradient.rs:15:12
[INFO] [stdout]    |
[INFO] [stdout] 14 | impl Gradient {
[INFO] [stdout]    | ------------- associated function in this implementation
[INFO] [stdout] 15 |     pub fn new(a: Color, b: Color) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/bin/ch12/pattern/ring.rs:15:12
[INFO] [stdout]    |
[INFO] [stdout] 14 | impl Ring {
[INFO] [stdout]    | --------- associated function in this implementation
[INFO] [stdout] 15 |     pub fn new(a: Color, b: Color) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `set_transform`, `set_material`, and `get_mut_material` are never used
[INFO] [stdout]   --> src/bin/ch12/shape/mod.rs:21:8
[INFO] [stdout]    |
[INFO] [stdout] 18 | pub trait Shape: Debug {
[INFO] [stdout]    |           ----- methods in this trait
[INFO] [stdout] ...
[INFO] [stdout] 21 |     fn set_transform(&mut self, transform: Matrix<4>);
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 22 |     fn get_material(&self) -> &Material;
[INFO] [stdout] 23 |     fn set_material(&mut self, material: Material);
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 24 |     fn get_mut_material(&mut self) -> &mut Material;
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `shearing`, `rotation_x`, `rotation_y`, and `rotation_z` are never used
[INFO] [stdout]   --> src/bin/ch12/transformations.rs:9:8
[INFO] [stdout]    |
[INFO] [stdout] 6  | pub trait Transformation {
[INFO] [stdout]    |           -------------- methods in this trait
[INFO] [stdout] ...
[INFO] [stdout] 9  |     fn shearing(&self, xy: f64, xz: f64, yx: f64, yz: f64, zx: f64, zy: f64) -> Self;
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 10 |     fn rotation_x(&self, r: f64) -> Self;
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 11 |     fn rotation_y(&self, r: f64) -> Self;
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 12 |     fn rotation_z(&self, r: f64) -> Self;
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `magnitude` is never used
[INFO] [stdout]   --> src/bin/ch12/tuple/color.rs:26:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | impl Color {
[INFO] [stdout]    | ---------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 26 |     pub fn magnitude(&self) -> f64 {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/bin/ch12/world.rs:20:12
[INFO] [stdout]    |
[INFO] [stdout] 19 | impl World {
[INFO] [stdout]    | ---------- associated function in this implementation
[INFO] [stdout] 20 |     pub fn new() -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `t`, `point`, and `inside` are never read
[INFO] [stdout]    --> src/bin/ch12/world.rs:159:9
[INFO] [stdout]     |
[INFO] [stdout] 158 | pub struct Computations {
[INFO] [stdout]     |            ------------ fields in this struct
[INFO] [stdout] 159 |     pub t: f64,
[INFO] [stdout]     |         ^
[INFO] [stdout] 160 |     pub object: Rc<RefCell<dyn Shape>>,
[INFO] [stdout] 161 |     pub point: Point,
[INFO] [stdout]     |         ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 165 |     pub inside: bool,
[INFO] [stdout]     |         ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Computations` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `float_cmp` is never used
[INFO] [stdout]    --> src/bin/ch13/main.rs:160:4
[INFO] [stdout]     |
[INFO] [stdout] 160 | fn float_cmp(first: &f64, second: &f64) -> std::cmp::Ordering {
[INFO] [stdout]     |    ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `field_of_view` is never read
[INFO] [stdout]   --> src/bin/ch13/camera.rs:13:9
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub struct Camera {
[INFO] [stdout]    |            ------ field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 13 |     pub field_of_view: f64,
[INFO] [stdout]    |         ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `pixel_at` is never used
[INFO] [stdout]   --> src/bin/ch13/canvas/mod.rs:28:12
[INFO] [stdout]    |
[INFO] [stdout] 15 | impl Canvas {
[INFO] [stdout]    | ----------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 28 |     pub fn pixel_at(&self, x: usize, y: usize) -> Color {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `IDENTITY`, `is_invertible`, and `inverse` are never used
[INFO] [stdout]    --> src/bin/ch13/matrix.rs:98:15
[INFO] [stdout]     |
[INFO] [stdout] 97  | impl Matrix<3> {
[INFO] [stdout]     | -------------- associated items in this implementation
[INFO] [stdout] 98  |     pub const IDENTITY: Matrix<3> = Matrix {
[INFO] [stdout]     |               ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 137 |     pub fn is_invertible(&self) -> bool {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 140 |     pub fn inverse(&self) -> Self {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `IDENTITY`, `minor`, `cofactor`, `is_invertible`, and `inverse` are never used
[INFO] [stdout]    --> src/bin/ch13/matrix.rs:155:15
[INFO] [stdout]     |
[INFO] [stdout] 154 | impl Matrix<2> {
[INFO] [stdout]     | -------------- associated items in this implementation
[INFO] [stdout] 155 |     pub const IDENTITY: Matrix<2> = Matrix {
[INFO] [stdout]     |               ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 158 |     pub fn minor(&self, row: usize, col: usize) -> f64 {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 161 |     pub fn cofactor(&self, row: usize, col: usize) -> f64 {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 167 |     pub fn is_invertible(&self) -> bool {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 170 |     pub fn inverse(&self) -> Self {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `transform` is never used
[INFO] [stdout]   --> src/bin/ch13/pattern/mod.rs:24:8
[INFO] [stdout]    |
[INFO] [stdout] 18 | pub trait Pattern: Debug {
[INFO] [stdout]    |           ------- method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 24 |     fn transform(&self) -> Matrix<4>;
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/bin/ch13/pattern/gradient.rs:15:12
[INFO] [stdout]    |
[INFO] [stdout] 14 | impl Gradient {
[INFO] [stdout]    | ------------- associated function in this implementation
[INFO] [stdout] 15 |     pub fn new(a: Color, b: Color) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/bin/ch13/pattern/ring.rs:15:12
[INFO] [stdout]    |
[INFO] [stdout] 14 | impl Ring {
[INFO] [stdout]    | --------- associated function in this implementation
[INFO] [stdout] 15 |     pub fn new(a: Color, b: Color) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `set_transform`, `set_material`, and `get_mut_material` are never used
[INFO] [stdout]   --> src/bin/ch13/shape/mod.rs:25:8
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub trait Shape: Debug {
[INFO] [stdout]    |           ----- methods in this trait
[INFO] [stdout] ...
[INFO] [stdout] 25 |     fn set_transform(&mut self, transform: Matrix<4>);
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 26 |     fn get_material(&self) -> &Material;
[INFO] [stdout] 27 |     fn set_material(&mut self, material: Material);
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 28 |     fn get_mut_material(&mut self) -> &mut Material;
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/bin/ch13/shape/cone.rs:31:12
[INFO] [stdout]    |
[INFO] [stdout] 30 | impl Cone {
[INFO] [stdout]    | --------- associated function in this implementation
[INFO] [stdout] 31 |     pub fn new(id: usize) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `shearing`, `rotation_x`, `rotation_y`, and `rotation_z` are never used
[INFO] [stdout]   --> src/bin/ch13/transformations.rs:9:8
[INFO] [stdout]    |
[INFO] [stdout] 6  | pub trait Transformation {
[INFO] [stdout]    |           -------------- methods in this trait
[INFO] [stdout] ...
[INFO] [stdout] 9  |     fn shearing(&self, xy: f64, xz: f64, yx: f64, yz: f64, zx: f64, zy: f64) -> Self;
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 10 |     fn rotation_x(&self, r: f64) -> Self;
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 11 |     fn rotation_y(&self, r: f64) -> Self;
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 12 |     fn rotation_z(&self, r: f64) -> Self;
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `magnitude` is never used
[INFO] [stdout]   --> src/bin/ch13/tuple/color.rs:26:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | impl Color {
[INFO] [stdout]    | ---------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 26 |     pub fn magnitude(&self) -> f64 {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/bin/ch13/world.rs:21:12
[INFO] [stdout]    |
[INFO] [stdout] 20 | impl World {
[INFO] [stdout]    | ---------- associated function in this implementation
[INFO] [stdout] 21 |     pub fn new() -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `t`, `point`, and `inside` are never read
[INFO] [stdout]    --> src/bin/ch13/world.rs:160:9
[INFO] [stdout]     |
[INFO] [stdout] 159 | pub struct Computations {
[INFO] [stdout]     |            ------------ fields in this struct
[INFO] [stdout] 160 |     pub t: f64,
[INFO] [stdout]     |         ^
[INFO] [stdout] 161 |     pub object: Rc<RefCell<dyn Shape>>,
[INFO] [stdout] 162 |     pub point: Point,
[INFO] [stdout]     |         ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 166 |     pub inside: bool,
[INFO] [stdout]     |         ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Computations` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.58s
[INFO] running `Command { std: "docker" "inspect" "94d37fd6fc32de48707d4bb31e4593e95a2493839c527a1212cfcd7b8aa455f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "94d37fd6fc32de48707d4bb31e4593e95a2493839c527a1212cfcd7b8aa455f7", kill_on_drop: false }`
[INFO] [stdout] 94d37fd6fc32de48707d4bb31e4593e95a2493839c527a1212cfcd7b8aa455f7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+nightly-2024-10-28" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cdd349e88daef8ccbee6a834c881a53554d51e07b27bba391a7ee80084d88fd4
[INFO] running `Command { std: "docker" "start" "-a" "cdd349e88daef8ccbee6a834c881a53554d51e07b27bba391a7ee80084d88fd4", kill_on_drop: false }`
[INFO] [stderr]    Compiling ray_tracer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the feature `generic_const_exprs` is incomplete and may not be safe to use and/or cause compiler crashes
[INFO] [stdout]  --> src/bin/ch3/main.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(generic_const_exprs)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: see issue #76560 <https://github.com/rust-lang/rust/issues/76560> for more information
[INFO] [stdout]   = note: `#[warn(incomplete_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `generic_const_exprs` is incomplete and may not be safe to use and/or cause compiler crashes
[INFO] [stdout]  --> src/bin/ch6/main.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(generic_const_exprs)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: see issue #76560 <https://github.com/rust-lang/rust/issues/76560> for more information
[INFO] [stdout]   = note: `#[warn(incomplete_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `generic_const_exprs` is incomplete and may not be safe to use and/or cause compiler crashes
[INFO] [stdout]  --> src/bin/ch4/main.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(generic_const_exprs)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: see issue #76560 <https://github.com/rust-lang/rust/issues/76560> for more information
[INFO] [stdout]   = note: `#[warn(incomplete_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `generic_const_exprs` is incomplete and may not be safe to use and/or cause compiler crashes
[INFO] [stdout]  --> src/bin/ch5/main.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(generic_const_exprs)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: see issue #76560 <https://github.com/rust-lang/rust/issues/76560> for more information
[INFO] [stdout]   = note: `#[warn(incomplete_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `dot` and `cross` are never used
[INFO] [stdout]   --> src/bin/ch1/tuple.rs:79:12
[INFO] [stdout]    |
[INFO] [stdout] 65 | impl Vector {
[INFO] [stdout]    | ----------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 79 |     pub fn dot(&self, other: Self) -> f64 {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 83 |     pub fn cross(&self, other: Self) -> Self {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `generic_const_exprs` is incomplete and may not be safe to use and/or cause compiler crashes
[INFO] [stdout]  --> src/bin/ch8/main.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(generic_const_exprs)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: see issue #76560 <https://github.com/rust-lang/rust/issues/76560> for more information
[INFO] [stdout]   = note: `#[warn(incomplete_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `generic_const_exprs` is incomplete and may not be safe to use and/or cause compiler crashes
[INFO] [stdout]  --> src/bin/ch9/main.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(generic_const_exprs)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: see issue #76560 <https://github.com/rust-lang/rust/issues/76560> for more information
[INFO] [stdout]   = note: `#[warn(incomplete_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::world::World`
[INFO] [stdout]  --> src/bin/ch9/ray.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use crate::world::World;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `float_cmp::approx_eq`
[INFO] [stdout]  --> src/bin/ch9/shapes/plane.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use float_cmp::approx_eq;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `path::is_separator`
[INFO] [stdout]  --> src/bin/ch8/world.rs:1:26
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{cell::RefCell, path::is_separator, rc::Rc};
[INFO] [stdout]   |                          ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `borrow::BorrowMut`
[INFO] [stdout]   --> src/bin/ch9/shapes/plane.rs:63:15
[INFO] [stdout]    |
[INFO] [stdout] 63 |     use std::{borrow::BorrowMut, cell::RefCell};
[INFO] [stdout]    |               ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `cell::RefCell` and `rc::Rc`
[INFO] [stdout]  --> src/bin/ch9/shapes/sphere.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{cell::RefCell, rc::Rc};
[INFO] [stdout]   |           ^^^^^^^^^^^^^  ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `FRAC_PI_3`
[INFO] [stdout]   --> src/bin/ch8/main.rs:20:30
[INFO] [stdout]    |
[INFO] [stdout] 20 |     f64::consts::{FRAC_PI_2, FRAC_PI_3, FRAC_PI_4},
[INFO] [stdout]    |                              ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Intersection`
[INFO] [stdout]  --> src/bin/ch9/shapes/sphere.rs:6:11
[INFO] [stdout]   |
[INFO] [stdout] 6 |     ray::{Intersection, Ray},
[INFO] [stdout]   |           ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `cell::RefCell` and `rc::Rc`
[INFO] [stdout]  --> src/bin/ch9/shapes/mod.rs:3:11
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::{cell::RefCell, fmt::Debug, rc::Rc};
[INFO] [stdout]   |           ^^^^^^^^^^^^^              ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Intersection`
[INFO] [stdout]   --> src/bin/ch9/shapes/mod.rs:11:11
[INFO] [stdout]    |
[INFO] [stdout] 11 |     ray::{Intersection, Ray},
[INFO] [stdout]    |           ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `any::type_name`
[INFO] [stdout]   --> src/bin/ch9/shapes/mod.rs:42:9
[INFO] [stdout]    |
[INFO] [stdout] 42 |         any::type_name,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `path::is_separator`
[INFO] [stdout]  --> src/bin/ch9/world.rs:1:26
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{cell::RefCell, path::is_separator, rc::Rc};
[INFO] [stdout]   |                          ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `cell::RefMut`
[INFO] [stdout]    --> src/bin/ch9/world.rs:163:34
[INFO] [stdout]     |
[INFO] [stdout] 163 |     use std::{borrow::BorrowMut, cell::RefMut};
[INFO] [stdout]     |                                  ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `FRAC_PI_6`
[INFO] [stdout]   --> src/bin/ch9/main.rs:20:52
[INFO] [stdout]    |
[INFO] [stdout] 20 |     f64::consts::{FRAC_PI_2, FRAC_PI_3, FRAC_PI_4, FRAC_PI_6},
[INFO] [stdout]    |                                                    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `generic_const_exprs` is incomplete and may not be safe to use and/or cause compiler crashes
[INFO] [stdout]  --> src/bin/ch7/main.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(generic_const_exprs)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: see issue #76560 <https://github.com/rust-lang/rust/issues/76560> for more information
[INFO] [stdout]   = note: `#[warn(incomplete_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `io::Write`
[INFO] [stdout]  --> src/bin/ch2/main.rs:2:11
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::{io::Write};
[INFO] [stdout]   |           ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `generic_const_exprs` is incomplete and may not be safe to use and/or cause compiler crashes
[INFO] [stdout]  --> src/bin/ch10/main.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(generic_const_exprs)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: see issue #76560 <https://github.com/rust-lang/rust/issues/76560> for more information
[INFO] [stdout]   = note: `#[warn(incomplete_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `pattern::Stripe`
[INFO] [stdout]  --> src/bin/ch10/materials.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     pattern::Stripe,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `generic_const_exprs` is incomplete and may not be safe to use and/or cause compiler crashes
[INFO] [stdout]  --> src/bin/ch11/main.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(generic_const_exprs)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: see issue #76560 <https://github.com/rust-lang/rust/issues/76560> for more information
[INFO] [stdout]   = note: `#[warn(incomplete_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `pattern::Stripe`
[INFO] [stdout]  --> src/bin/ch11/materials.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     pattern::Stripe,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `f64::consts::FRAC_2_PI`
[INFO] [stdout]   --> src/bin/ch11/materials.rs:90:43
[INFO] [stdout]    |
[INFO] [stdout] 90 |     use std::{f64::consts::FRAC_1_SQRT_2, f64::consts::FRAC_2_PI};
[INFO] [stdout]    |                                           ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Intersection`, `Plane`, and `Ray`
[INFO] [stdout]   --> src/bin/ch11/materials.rs:94:15
[INFO] [stdout]    |
[INFO] [stdout] 94 |         ray::{Intersection, Ray},
[INFO] [stdout]    |               ^^^^^^^^^^^^  ^^^
[INFO] [stdout] 95 |         shape::{Plane, Sphere},
[INFO] [stdout]    |                 ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `shape::Shape`
[INFO] [stdout]  --> src/bin/ch11/pattern/stripe.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     shape::Shape,
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `cell::RefCell` and `rc::Rc`
[INFO] [stdout]  --> src/bin/ch11/pattern/mod.rs:5:11
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::{cell::RefCell, fmt::Debug, rc::Rc};
[INFO] [stdout]   |           ^^^^^^^^^^^^^              ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `World`
[INFO] [stdout]  --> src/bin/ch11/ray.rs:5:34
[INFO] [stdout]   |
[INFO] [stdout] 5 | use crate::world::{Computations, World};
[INFO] [stdout]   |                                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `DEFAULT_REFLECTION_COUNT` and `tuple::Color`
[INFO] [stdout]   --> src/bin/ch11/ray.rs:94:73
[INFO] [stdout]    |
[INFO] [stdout] 94 |         matrix::Matrix, shape::Sphere, transformations::Transformation, tuple::Color,
[INFO] [stdout]    |                                                                         ^^^^^^^^^^^^
[INFO] [stdout] 95 |         world::prepare_computations, DEFAULT_REFLECTION_COUNT,
[INFO] [stdout]    |                                      ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `float_cmp::approx_eq`
[INFO] [stdout]  --> src/bin/ch11/shape/plane.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use float_cmp::approx_eq;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `cell::RefCell` and `rc::Rc`
[INFO] [stdout]  --> src/bin/ch11/shape/sphere.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{cell::RefCell, rc::Rc};
[INFO] [stdout]   |           ^^^^^^^^^^^^^  ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Intersection`
[INFO] [stdout]  --> src/bin/ch11/shape/sphere.rs:7:11
[INFO] [stdout]   |
[INFO] [stdout] 7 |     ray::{Intersection, Ray},
[INFO] [stdout]   |           ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `generic_const_exprs` is incomplete and may not be safe to use and/or cause compiler crashes
[INFO] [stdout]  --> src/bin/ch12/main.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(generic_const_exprs)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: see issue #76560 <https://github.com/rust-lang/rust/issues/76560> for more information
[INFO] [stdout]   = note: `#[warn(incomplete_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `cell::RefCell` and `rc::Rc`
[INFO] [stdout]  --> src/bin/ch11/shape/mod.rs:3:11
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::{cell::RefCell, fmt::Debug, rc::Rc};
[INFO] [stdout]   |           ^^^^^^^^^^^^^              ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `pattern::Stripe`
[INFO] [stdout]  --> src/bin/ch12/materials.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     pattern::Stripe,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `f64::consts::FRAC_2_PI`
[INFO] [stdout]   --> src/bin/ch12/materials.rs:90:43
[INFO] [stdout]    |
[INFO] [stdout] 90 |     use std::{f64::consts::FRAC_1_SQRT_2, f64::consts::FRAC_2_PI};
[INFO] [stdout]    |                                           ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Intersection`
[INFO] [stdout]   --> src/bin/ch11/shape/mod.rs:12:11
[INFO] [stdout]    |
[INFO] [stdout] 12 |     ray::{Intersection, Ray},
[INFO] [stdout]    |           ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Intersection`, `Plane`, and `Ray`
[INFO] [stdout]   --> src/bin/ch12/materials.rs:94:15
[INFO] [stdout]    |
[INFO] [stdout] 94 |         ray::{Intersection, Ray},
[INFO] [stdout]    |               ^^^^^^^^^^^^  ^^^
[INFO] [stdout] 95 |         shape::{Plane, Sphere},
[INFO] [stdout]    |                 ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `shape::Shape`
[INFO] [stdout]  --> src/bin/ch12/pattern/stripe.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     shape::Shape,
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `cell::RefCell` and `rc::Rc`
[INFO] [stdout]  --> src/bin/ch12/pattern/mod.rs:5:11
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::{cell::RefCell, fmt::Debug, rc::Rc};
[INFO] [stdout]   |           ^^^^^^^^^^^^^              ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `any::type_name`
[INFO] [stdout]   --> src/bin/ch11/shape/mod.rs:57:9
[INFO] [stdout]    |
[INFO] [stdout] 57 |         any::type_name,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `World`
[INFO] [stdout]  --> src/bin/ch12/ray.rs:5:34
[INFO] [stdout]   |
[INFO] [stdout] 5 | use crate::world::{Computations, World};
[INFO] [stdout]   |                                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `DEFAULT_REFLECTION_COUNT` and `tuple::Color`
[INFO] [stdout]   --> src/bin/ch12/ray.rs:94:73
[INFO] [stdout]    |
[INFO] [stdout] 94 |         matrix::Matrix, shape::Sphere, transformations::Transformation, tuple::Color,
[INFO] [stdout]    |                                                                         ^^^^^^^^^^^^
[INFO] [stdout] 95 |         world::prepare_computations, DEFAULT_REFLECTION_COUNT,
[INFO] [stdout]    |                                      ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `shape::Shape`
[INFO] [stdout]  --> src/bin/ch10/pattern/stripe.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     shape::Shape,
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Point`
[INFO] [stdout]  --> src/bin/ch12/shape/cube.rs:6:13
[INFO] [stdout]   |
[INFO] [stdout] 6 |     tuple::{Point, Tuple, Vector},
[INFO] [stdout]   |             ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `cell::RefMut`
[INFO] [stdout]    --> src/bin/ch11/world.rs:276:9
[INFO] [stdout]     |
[INFO] [stdout] 276 |         cell::RefMut,
[INFO] [stdout]     |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `float_cmp::approx_eq`
[INFO] [stdout]  --> src/bin/ch12/shape/plane.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use float_cmp::approx_eq;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `cell::RefCell` and `rc::Rc`
[INFO] [stdout]  --> src/bin/ch12/shape/sphere.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{cell::RefCell, rc::Rc};
[INFO] [stdout]   |           ^^^^^^^^^^^^^  ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `cell::RefCell` and `rc::Rc`
[INFO] [stdout]  --> src/bin/ch10/pattern/mod.rs:5:11
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::{cell::RefCell, fmt::Debug, rc::Rc};
[INFO] [stdout]   |           ^^^^^^^^^^^^^              ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `FRAC_PI_3`, `FRAC_PI_4`, and `FRAC_PI_6`
[INFO] [stdout]   --> src/bin/ch11/main.rs:22:30
[INFO] [stdout]    |
[INFO] [stdout] 22 |     f64::consts::{FRAC_PI_2, FRAC_PI_3, FRAC_PI_4, FRAC_PI_6},
[INFO] [stdout]    |                              ^^^^^^^^^  ^^^^^^^^^  ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::world::World`
[INFO] [stdout]  --> src/bin/ch10/ray.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use crate::world::World;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Gradient`, `Ring`, `Stripe`, and `lights::PointLight`
[INFO] [stdout]   --> src/bin/ch11/main.rs:31:5
[INFO] [stdout]    |
[INFO] [stdout] 31 |     lights::PointLight,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 32 |     pattern::{Checkerboard, Gradient, Pattern, Ring, Stripe},
[INFO] [stdout]    |                             ^^^^^^^^           ^^^^  ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Intersection`
[INFO] [stdout]  --> src/bin/ch12/shape/sphere.rs:7:11
[INFO] [stdout]   |
[INFO] [stdout] 7 |     ray::{Intersection, Ray},
[INFO] [stdout]   |           ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `float_cmp::approx_eq`
[INFO] [stdout]  --> src/bin/ch10/shape/plane.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use float_cmp::approx_eq;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `cell::RefCell` and `rc::Rc`
[INFO] [stdout]  --> src/bin/ch10/shape/sphere.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{cell::RefCell, rc::Rc};
[INFO] [stdout]   |           ^^^^^^^^^^^^^  ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `cell::RefCell` and `rc::Rc`
[INFO] [stdout]  --> src/bin/ch12/shape/mod.rs:4:11
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::{cell::RefCell, fmt::Debug, rc::Rc};
[INFO] [stdout]   |           ^^^^^^^^^^^^^              ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Intersection`
[INFO] [stdout]  --> src/bin/ch10/shape/sphere.rs:7:11
[INFO] [stdout]   |
[INFO] [stdout] 7 |     ray::{Intersection, Ray},
[INFO] [stdout]   |           ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Intersection`
[INFO] [stdout]   --> src/bin/ch12/shape/mod.rs:14:11
[INFO] [stdout]    |
[INFO] [stdout] 14 |     ray::{Intersection, Ray},
[INFO] [stdout]    |           ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `any::type_name`
[INFO] [stdout]   --> src/bin/ch12/shape/mod.rs:59:9
[INFO] [stdout]    |
[INFO] [stdout] 59 |         any::type_name,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `cell::RefCell` and `rc::Rc`
[INFO] [stdout]  --> src/bin/ch10/shape/mod.rs:3:11
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::{cell::RefCell, fmt::Debug, rc::Rc};
[INFO] [stdout]   |           ^^^^^^^^^^^^^              ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `cell::RefMut`
[INFO] [stdout]    --> src/bin/ch12/world.rs:276:9
[INFO] [stdout]     |
[INFO] [stdout] 276 |         cell::RefMut,
[INFO] [stdout]     |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `w`, `dot`, and `cross` are never used
[INFO] [stdout]   --> src/bin/ch2/tuple/mod.rs:15:8
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub trait Tuple: Add + Sub + Neg + Mul<f64> + Div<f64> + Sized {
[INFO] [stdout]    |           ----- methods in this trait
[INFO] [stdout] ...
[INFO] [stdout] 15 |     fn w(&self) -> f64;
[INFO] [stdout]    |        ^
[INFO] [stdout] 16 |     fn dot(&self, other: Self) -> f64 {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 20 |     fn cross(&self, other: Self) -> Self {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `materials::Material`
[INFO] [stdout]   --> src/bin/ch12/main.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 | use materials::Material;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Intersection`
[INFO] [stdout]   --> src/bin/ch10/shape/mod.rs:12:11
[INFO] [stdout]    |
[INFO] [stdout] 12 |     ray::{Intersection, Ray},
[INFO] [stdout]    |           ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `any::type_name`
[INFO] [stdout]   --> src/bin/ch10/shape/mod.rs:45:9
[INFO] [stdout]    |
[INFO] [stdout] 45 |         any::type_name,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::cell::RefMut`
[INFO] [stdout]    --> src/bin/ch10/world.rs:164:9
[INFO] [stdout]     |
[INFO] [stdout] 164 |     use std::cell::RefMut;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `FRAC_PI_3`, `FRAC_PI_4`, and `FRAC_PI_6`
[INFO] [stdout]   --> src/bin/ch12/main.rs:24:30
[INFO] [stdout]    |
[INFO] [stdout] 24 |     f64::consts::{FRAC_PI_2, FRAC_PI_3, FRAC_PI_4, FRAC_PI_6},
[INFO] [stdout]    |                              ^^^^^^^^^  ^^^^^^^^^  ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `FRAC_PI_6`
[INFO] [stdout]   --> src/bin/ch10/main.rs:21:52
[INFO] [stdout]    |
[INFO] [stdout] 21 |     f64::consts::{FRAC_PI_2, FRAC_PI_3, FRAC_PI_4, FRAC_PI_6},
[INFO] [stdout]    |                                                    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Gradient`, `Ring`, and `lights::PointLight`
[INFO] [stdout]   --> src/bin/ch12/main.rs:33:5
[INFO] [stdout]    |
[INFO] [stdout] 33 |     lights::PointLight,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 34 |     pattern::{Checkerboard, Gradient, Pattern, Ring, Stripe},
[INFO] [stdout]    |                             ^^^^^^^^           ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `generic_const_exprs` is incomplete and may not be safe to use and/or cause compiler crashes
[INFO] [stdout]  --> src/bin/ch13/main.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(generic_const_exprs)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: see issue #76560 <https://github.com/rust-lang/rust/issues/76560> for more information
[INFO] [stdout]   = note: `#[warn(incomplete_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `pattern::Stripe`
[INFO] [stdout]  --> src/bin/ch13/materials.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     pattern::Stripe,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `f64::consts::FRAC_2_PI`
[INFO] [stdout]   --> src/bin/ch13/materials.rs:90:43
[INFO] [stdout]    |
[INFO] [stdout] 90 |     use std::{f64::consts::FRAC_1_SQRT_2, f64::consts::FRAC_2_PI};
[INFO] [stdout]    |                                           ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Intersection`, `Plane`, and `Ray`
[INFO] [stdout]   --> src/bin/ch13/materials.rs:94:15
[INFO] [stdout]    |
[INFO] [stdout] 94 |         ray::{Intersection, Ray},
[INFO] [stdout]    |               ^^^^^^^^^^^^  ^^^
[INFO] [stdout] 95 |         shape::{Plane, Sphere},
[INFO] [stdout]    |                 ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `shape::Shape`
[INFO] [stdout]  --> src/bin/ch13/pattern/stripe.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     shape::Shape,
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `cell::RefCell` and `rc::Rc`
[INFO] [stdout]  --> src/bin/ch13/pattern/mod.rs:5:11
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::{cell::RefCell, fmt::Debug, rc::Rc};
[INFO] [stdout]   |           ^^^^^^^^^^^^^              ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `World`
[INFO] [stdout]  --> src/bin/ch13/ray.rs:5:34
[INFO] [stdout]   |
[INFO] [stdout] 5 | use crate::world::{Computations, World};
[INFO] [stdout]   |                                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `DEFAULT_REFLECTION_COUNT` and `tuple::Color`
[INFO] [stdout]   --> src/bin/ch13/ray.rs:94:73
[INFO] [stdout]    |
[INFO] [stdout] 94 |         matrix::Matrix, shape::Sphere, transformations::Transformation, tuple::Color,
[INFO] [stdout]    |                                                                         ^^^^^^^^^^^^
[INFO] [stdout] 95 |         world::prepare_computations, DEFAULT_REFLECTION_COUNT,
[INFO] [stdout]    |                                      ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Point`
[INFO] [stdout]  --> src/bin/ch13/shape/cube.rs:6:13
[INFO] [stdout]   |
[INFO] [stdout] 6 |     tuple::{Point, Tuple, Vector},
[INFO] [stdout]   |             ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `float_cmp::approx_eq`
[INFO] [stdout]  --> src/bin/ch13/shape/plane.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use float_cmp::approx_eq;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `cell::RefCell` and `rc::Rc`
[INFO] [stdout]  --> src/bin/ch13/shape/sphere.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{cell::RefCell, rc::Rc};
[INFO] [stdout]   |           ^^^^^^^^^^^^^  ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Intersection`
[INFO] [stdout]  --> src/bin/ch13/shape/sphere.rs:7:11
[INFO] [stdout]   |
[INFO] [stdout] 7 |     ray::{Intersection, Ray},
[INFO] [stdout]   |           ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `cell::RefCell` and `rc::Rc`
[INFO] [stdout]  --> src/bin/ch13/shape/mod.rs:6:11
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::{cell::RefCell, fmt::Debug, rc::Rc};
[INFO] [stdout]   |           ^^^^^^^^^^^^^              ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Intersection`
[INFO] [stdout]   --> src/bin/ch13/shape/mod.rs:18:11
[INFO] [stdout]    |
[INFO] [stdout] 18 |     ray::{Intersection, Ray},
[INFO] [stdout]    |           ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `any::type_name`
[INFO] [stdout]   --> src/bin/ch13/shape/mod.rs:63:9
[INFO] [stdout]    |
[INFO] [stdout] 63 |         any::type_name,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `cell::RefMut`
[INFO] [stdout]    --> src/bin/ch13/world.rs:276:9
[INFO] [stdout]     |
[INFO] [stdout] 276 |         cell::RefMut,
[INFO] [stdout]     |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `materials::Material`
[INFO] [stdout]   --> src/bin/ch13/main.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 | use materials::Material;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `FRAC_PI_3`, `FRAC_PI_4`, and `FRAC_PI_6`
[INFO] [stdout]   --> src/bin/ch13/main.rs:24:30
[INFO] [stdout]    |
[INFO] [stdout] 24 |     f64::consts::{FRAC_PI_2, FRAC_PI_3, FRAC_PI_4, FRAC_PI_6},
[INFO] [stdout]    |                              ^^^^^^^^^  ^^^^^^^^^  ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Cone`, `Gradient`, `Ring`, and `lights::PointLight`
[INFO] [stdout]   --> src/bin/ch13/main.rs:33:5
[INFO] [stdout]    |
[INFO] [stdout] 33 |     lights::PointLight,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 34 |     pattern::{Checkerboard, Gradient, Pattern, Ring, Stripe},
[INFO] [stdout]    |                             ^^^^^^^^           ^^^^
[INFO] [stdout] 35 |     shape::{Cone, Cylinder},
[INFO] [stdout]    |             ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/bin/ch10/pattern/mod.rs:20:40
[INFO] [stdout]    |
[INFO] [stdout] 20 |     fn pattern_at_shape(&self, shape: &Shape, point: &Point) -> Color {
[INFO] [stdout]    |                                        ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 20 |     fn pattern_at_shape(&self, shape: &dyn Shape, point: &Point) -> Color {
[INFO] [stdout]    |                                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/bin/ch11/pattern/mod.rs:20:40
[INFO] [stdout]    |
[INFO] [stdout] 20 |     fn pattern_at_shape(&self, shape: &Shape, point: &Point) -> Color {
[INFO] [stdout]    |                                        ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 20 |     fn pattern_at_shape(&self, shape: &dyn Shape, point: &Point) -> Color {
[INFO] [stdout]    |                                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/bin/ch12/pattern/mod.rs:20:40
[INFO] [stdout]    |
[INFO] [stdout] 20 |     fn pattern_at_shape(&self, shape: &Shape, point: &Point) -> Color {
[INFO] [stdout]    |                                        ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 20 |     fn pattern_at_shape(&self, shape: &dyn Shape, point: &Point) -> Color {
[INFO] [stdout]    |                                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/bin/ch13/pattern/mod.rs:20:40
[INFO] [stdout]    |
[INFO] [stdout] 20 |     fn pattern_at_shape(&self, shape: &Shape, point: &Point) -> Color {
[INFO] [stdout]    |                                        ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 20 |     fn pattern_at_shape(&self, shape: &dyn Shape, point: &Point) -> Color {
[INFO] [stdout]    |                                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `to_ppm` is never used
[INFO] [stdout]   --> src/bin/ch3/canvas/mod.rs:32:12
[INFO] [stdout]    |
[INFO] [stdout] 15 | impl Canvas {
[INFO] [stdout]    | ----------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 32 |     pub fn to_ppm(&self, filename: &str) -> io::Result<()> {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `IDENTITY`, `is_invertible`, and `inverse` are never used
[INFO] [stdout]    --> src/bin/ch3/matrix.rs:90:15
[INFO] [stdout]     |
[INFO] [stdout] 89  | impl Matrix<3> {
[INFO] [stdout]     | -------------- associated items in this implementation
[INFO] [stdout] 90  |     pub const IDENTITY: Matrix<3> = Matrix {
[INFO] [stdout]     |               ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 129 |     pub fn is_invertible(&self) -> bool {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 132 |     pub fn inverse(&self) -> Self {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `IDENTITY`, `minor`, `cofactor`, `is_invertible`, and `inverse` are never used
[INFO] [stdout]    --> src/bin/ch3/matrix.rs:147:15
[INFO] [stdout]     |
[INFO] [stdout] 146 | impl Matrix<2> {
[INFO] [stdout]     | -------------- associated items in this implementation
[INFO] [stdout] 147 |     pub const IDENTITY: Matrix<2> = Matrix {
[INFO] [stdout]     |               ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 150 |     pub fn minor(&self, row: usize, col: usize) -> f64 {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 153 |     pub fn cofactor(&self, row: usize, col: usize) -> f64 {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 159 |     pub fn is_invertible(&self) -> bool {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 162 |     pub fn inverse(&self) -> Self {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `dot`, `cross`, `magnitude`, and `normalize` are never used
[INFO] [stdout]   --> src/bin/ch3/tuple/mod.rs:16:8
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub trait Tuple: Add + Sub + Neg + Mul<f64> + Div<f64> + Sized {
[INFO] [stdout]    |           ----- methods in this trait
[INFO] [stdout] ...
[INFO] [stdout] 16 |     fn dot(&self, other: Self) -> f64 {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 20 |     fn cross(&self, other: Self) -> Self {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 28 |     fn magnitude(&self) -> f64 {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 32 |     fn normalize(&self) -> Self {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `IDENTITY`, `is_invertible`, and `inverse` are never used
[INFO] [stdout]    --> src/bin/ch4/matrix.rs:92:15
[INFO] [stdout]     |
[INFO] [stdout] 91  | impl Matrix<3> {
[INFO] [stdout]     | -------------- associated items in this implementation
[INFO] [stdout] 92  |     pub const IDENTITY: Matrix<3> = Matrix {
[INFO] [stdout]     |               ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 131 |     pub fn is_invertible(&self) -> bool {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 134 |     pub fn inverse(&self) -> Self {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `IDENTITY`, `minor`, `cofactor`, `is_invertible`, and `inverse` are never used
[INFO] [stdout]    --> src/bin/ch4/matrix.rs:149:15
[INFO] [stdout]     |
[INFO] [stdout] 148 | impl Matrix<2> {
[INFO] [stdout]     | -------------- associated items in this implementation
[INFO] [stdout] 149 |     pub const IDENTITY: Matrix<2> = Matrix {
[INFO] [stdout]     |               ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 152 |     pub fn minor(&self, row: usize, col: usize) -> f64 {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 155 |     pub fn cofactor(&self, row: usize, col: usize) -> f64 {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 161 |     pub fn is_invertible(&self) -> bool {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 164 |     pub fn inverse(&self) -> Self {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `dot`, `cross`, `magnitude`, and `normalize` are never used
[INFO] [stdout]   --> src/bin/ch4/tuple/mod.rs:16:8
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub trait Tuple: Add + Sub + Neg + Mul<f64> + Div<f64> + Sized {
[INFO] [stdout]    |           ----- methods in this trait
[INFO] [stdout] ...
[INFO] [stdout] 16 |     fn dot(&self, other: Self) -> f64 {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 20 |     fn cross(&self, other: Self) -> Self {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 28 |     fn magnitude(&self) -> f64 {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 32 |     fn normalize(&self) -> Self {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `A` should have a snake case name
[INFO] [stdout]    --> src/bin/ch4/transformations.rs:154:13
[INFO] [stdout]     |
[INFO] [stdout] 154 |         let A = Matrix::<4>::IDENTITY.rotation_x(FRAC_PI_2);
[INFO] [stdout]     |             ^ help: convert the identifier to snake case: `a`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `B` should have a snake case name
[INFO] [stdout]    --> src/bin/ch4/transformations.rs:155:13
[INFO] [stdout]     |
[INFO] [stdout] 155 |         let B = Matrix::<4>::IDENTITY.scaling(5.0, 5.0, 5.0);
[INFO] [stdout]     |             ^ help: convert the identifier to snake case: `b`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `C` should have a snake case name
[INFO] [stdout]    --> src/bin/ch4/transformations.rs:156:13
[INFO] [stdout]     |
[INFO] [stdout] 156 |         let C = Matrix::<4>::IDENTITY.translation(10.0, 5.0, 7.0);
[INFO] [stdout]     |             ^ help: convert the identifier to snake case (notice the capitalization): `c`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `T` should have a snake case name
[INFO] [stdout]    --> src/bin/ch4/transformations.rs:171:13
[INFO] [stdout]     |
[INFO] [stdout] 171 |         let T = Matrix::<4>::IDENTITY
[INFO] [stdout]     |             ^ help: convert the identifier to snake case: `t`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `borrow::BorrowMut`
[INFO] [stdout]    --> src/bin/ch9/world.rs:163:15
[INFO] [stdout]     |
[INFO] [stdout] 163 |     use std::{borrow::BorrowMut, cell::RefMut};
[INFO] [stdout]     |               ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `IDENTITY`, `is_invertible`, and `inverse` are never used
[INFO] [stdout]    --> src/bin/ch5/matrix.rs:92:15
[INFO] [stdout]     |
[INFO] [stdout] 91  | impl Matrix<3> {
[INFO] [stdout]     | -------------- associated items in this implementation
[INFO] [stdout] 92  |     pub const IDENTITY: Matrix<3> = Matrix {
[INFO] [stdout]     |               ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 131 |     pub fn is_invertible(&self) -> bool {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 134 |     pub fn inverse(&self) -> Self {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `IDENTITY`, `minor`, `cofactor`, `is_invertible`, and `inverse` are never used
[INFO] [stdout]    --> src/bin/ch5/matrix.rs:149:15
[INFO] [stdout]     |
[INFO] [stdout] 148 | impl Matrix<2> {
[INFO] [stdout]     | -------------- associated items in this implementation
[INFO] [stdout] 149 |     pub const IDENTITY: Matrix<2> = Matrix {
[INFO] [stdout]     |               ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 152 |     pub fn minor(&self, row: usize, col: usize) -> f64 {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 155 |     pub fn cofactor(&self, row: usize, col: usize) -> f64 {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 161 |     pub fn is_invertible(&self) -> bool {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 164 |     pub fn inverse(&self) -> Self {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `cross` is never used
[INFO] [stdout]   --> src/bin/ch5/tuple/mod.rs:20:8
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub trait Tuple: Add + Sub + Neg + Mul<f64> + Div<f64> + Sized {
[INFO] [stdout]    |           ----- method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 20 |     fn cross(&self, other: Self) -> Self {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `A` should have a snake case name
[INFO] [stdout]    --> src/bin/ch5/transformations.rs:154:13
[INFO] [stdout]     |
[INFO] [stdout] 154 |         let A = Matrix::<4>::IDENTITY.rotation_x(FRAC_PI_2);
[INFO] [stdout]     |             ^ help: convert the identifier to snake case: `a`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `B` should have a snake case name
[INFO] [stdout]    --> src/bin/ch5/transformations.rs:155:13
[INFO] [stdout]     |
[INFO] [stdout] 155 |         let B = Matrix::<4>::IDENTITY.scaling(5.0, 5.0, 5.0);
[INFO] [stdout]     |             ^ help: convert the identifier to snake case: `b`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `C` should have a snake case name
[INFO] [stdout]    --> src/bin/ch5/transformations.rs:156:13
[INFO] [stdout]     |
[INFO] [stdout] 156 |         let C = Matrix::<4>::IDENTITY.translation(10.0, 5.0, 7.0);
[INFO] [stdout]     |             ^ help: convert the identifier to snake case (notice the capitalization): `c`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `T` should have a snake case name
[INFO] [stdout]    --> src/bin/ch5/transformations.rs:171:13
[INFO] [stdout]     |
[INFO] [stdout] 171 |         let T = Matrix::<4>::IDENTITY
[INFO] [stdout]     |             ^ help: convert the identifier to snake case: `t`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `IDENTITY`, `is_invertible`, and `inverse` are never used
[INFO] [stdout]    --> src/bin/ch6/matrix.rs:92:15
[INFO] [stdout]     |
[INFO] [stdout] 91  | impl Matrix<3> {
[INFO] [stdout]     | -------------- associated items in this implementation
[INFO] [stdout] 92  |     pub const IDENTITY: Matrix<3> = Matrix {
[INFO] [stdout]     |               ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 131 |     pub fn is_invertible(&self) -> bool {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 134 |     pub fn inverse(&self) -> Self {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `IDENTITY`, `minor`, `cofactor`, `is_invertible`, and `inverse` are never used
[INFO] [stdout]    --> src/bin/ch6/matrix.rs:149:15
[INFO] [stdout]     |
[INFO] [stdout] 148 | impl Matrix<2> {
[INFO] [stdout]     | -------------- associated items in this implementation
[INFO] [stdout] 149 |     pub const IDENTITY: Matrix<2> = Matrix {
[INFO] [stdout]     |               ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 152 |     pub fn minor(&self, row: usize, col: usize) -> f64 {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 155 |     pub fn cofactor(&self, row: usize, col: usize) -> f64 {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 161 |     pub fn is_invertible(&self) -> bool {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 164 |     pub fn inverse(&self) -> Self {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `cross` is never used
[INFO] [stdout]   --> src/bin/ch6/tuple/mod.rs:20:8
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub trait Tuple: Add + Sub + Neg + Mul<f64> + Div<f64> + Sized {
[INFO] [stdout]    |           ----- method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 20 |     fn cross(&self, other: Self) -> Self {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `A` should have a snake case name
[INFO] [stdout]    --> src/bin/ch6/transformations.rs:154:13
[INFO] [stdout]     |
[INFO] [stdout] 154 |         let A = Matrix::<4>::IDENTITY.rotation_x(FRAC_PI_2);
[INFO] [stdout]     |             ^ help: convert the identifier to snake case: `a`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `B` should have a snake case name
[INFO] [stdout]    --> src/bin/ch6/transformations.rs:155:13
[INFO] [stdout]     |
[INFO] [stdout] 155 |         let B = Matrix::<4>::IDENTITY.scaling(5.0, 5.0, 5.0);
[INFO] [stdout]     |             ^ help: convert the identifier to snake case: `b`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `C` should have a snake case name
[INFO] [stdout]    --> src/bin/ch6/transformations.rs:156:13
[INFO] [stdout]     |
[INFO] [stdout] 156 |         let C = Matrix::<4>::IDENTITY.translation(10.0, 5.0, 7.0);
[INFO] [stdout]     |             ^ help: convert the identifier to snake case (notice the capitalization): `c`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `T` should have a snake case name
[INFO] [stdout]    --> src/bin/ch6/transformations.rs:171:13
[INFO] [stdout]     |
[INFO] [stdout] 171 |         let T = Matrix::<4>::IDENTITY
[INFO] [stdout]     |             ^ help: convert the identifier to snake case: `t`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `p`
[INFO] [stdout]   --> src/bin/ch9/shapes/plane.rs:48:31
[INFO] [stdout]    |
[INFO] [stdout] 48 |     fn local_normal_at(&self, p: &crate::tuple::Point) -> crate::tuple::Vector {
[INFO] [stdout]    |                               ^ help: if this is intentional, prefix it with an underscore: `_p`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `pattern::Pattern`
[INFO] [stdout]   --> src/bin/ch10/shape/mod.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     pattern::Pattern,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `pattern::Pattern`
[INFO] [stdout]  --> src/bin/ch10/shape/sphere.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     pattern::Pattern,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `pattern::Pattern`
[INFO] [stdout]   --> src/bin/ch10/ray.rs:10:13
[INFO] [stdout]    |
[INFO] [stdout] 10 | use crate::{pattern::Pattern, shape::Shape};
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `pattern::Pattern`
[INFO] [stdout]  --> src/bin/ch10/shape/plane.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     pattern::Pattern,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `IDENTITY`, `is_invertible`, and `inverse` are never used
[INFO] [stdout]    --> src/bin/ch7/matrix.rs:92:15
[INFO] [stdout]     |
[INFO] [stdout] 91  | impl Matrix<3> {
[INFO] [stdout]     | -------------- associated items in this implementation
[INFO] [stdout] 92  |     pub const IDENTITY: Matrix<3> = Matrix {
[INFO] [stdout]     |               ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 131 |     pub fn is_invertible(&self) -> bool {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 134 |     pub fn inverse(&self) -> Self {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `IDENTITY`, `minor`, `cofactor`, `is_invertible`, and `inverse` are never used
[INFO] [stdout]    --> src/bin/ch7/matrix.rs:149:15
[INFO] [stdout]     |
[INFO] [stdout] 148 | impl Matrix<2> {
[INFO] [stdout]     | -------------- associated items in this implementation
[INFO] [stdout] 149 |     pub const IDENTITY: Matrix<2> = Matrix {
[INFO] [stdout]     |               ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 152 |     pub fn minor(&self, row: usize, col: usize) -> f64 {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 155 |     pub fn cofactor(&self, row: usize, col: usize) -> f64 {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 161 |     pub fn is_invertible(&self) -> bool {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 164 |     pub fn inverse(&self) -> Self {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `A` should have a snake case name
[INFO] [stdout]    --> src/bin/ch7/transformations.rs:173:13
[INFO] [stdout]     |
[INFO] [stdout] 173 |         let A = Matrix::<4>::IDENTITY.rotation_x(FRAC_PI_2);
[INFO] [stdout]     |             ^ help: convert the identifier to snake case: `a`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `B` should have a snake case name
[INFO] [stdout]    --> src/bin/ch7/transformations.rs:174:13
[INFO] [stdout]     |
[INFO] [stdout] 174 |         let B = Matrix::<4>::IDENTITY.scaling(5.0, 5.0, 5.0);
[INFO] [stdout]     |             ^ help: convert the identifier to snake case: `b`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `C` should have a snake case name
[INFO] [stdout]    --> src/bin/ch7/transformations.rs:175:13
[INFO] [stdout]     |
[INFO] [stdout] 175 |         let C = Matrix::<4>::IDENTITY.translation(10.0, 5.0, 7.0);
[INFO] [stdout]     |             ^ help: convert the identifier to snake case (notice the capitalization): `c`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `T` should have a snake case name
[INFO] [stdout]    --> src/bin/ch7/transformations.rs:190:13
[INFO] [stdout]     |
[INFO] [stdout] 190 |         let T = Matrix::<4>::IDENTITY
[INFO] [stdout]     |             ^ help: convert the identifier to snake case: `t`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `transform`
[INFO] [stdout]   --> src/bin/ch10/pattern/checkerboard.rs:39:33
[INFO] [stdout]    |
[INFO] [stdout] 39 |     fn set_transform(&mut self, transform: Matrix<4>) {
[INFO] [stdout]    |                                 ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_transform`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `transform`
[INFO] [stdout]   --> src/bin/ch10/pattern/gradient.rs:34:33
[INFO] [stdout]    |
[INFO] [stdout] 34 |     fn set_transform(&mut self, transform: Matrix<4>) {
[INFO] [stdout]    |                                 ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_transform`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `transform`
[INFO] [stdout]   --> src/bin/ch10/pattern/ring.rs:29:33
[INFO] [stdout]    |
[INFO] [stdout] 29 |     fn set_transform(&mut self, transform: Matrix<4>) {
[INFO] [stdout]    |                                 ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_transform`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `IDENTITY`, `is_invertible`, and `inverse` are never used
[INFO] [stdout]    --> src/bin/ch8/matrix.rs:92:15
[INFO] [stdout]     |
[INFO] [stdout] 91  | impl Matrix<3> {
[INFO] [stdout]     | -------------- associated items in this implementation
[INFO] [stdout] 92  |     pub const IDENTITY: Matrix<3> = Matrix {
[INFO] [stdout]     |               ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 131 |     pub fn is_invertible(&self) -> bool {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 134 |     pub fn inverse(&self) -> Self {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `IDENTITY`, `minor`, `cofactor`, `is_invertible`, and `inverse` are never used
[INFO] [stdout]    --> src/bin/ch8/matrix.rs:149:15
[INFO] [stdout]     |
[INFO] [stdout] 148 | impl Matrix<2> {
[INFO] [stdout]     | -------------- associated items in this implementation
[INFO] [stdout] 149 |     pub const IDENTITY: Matrix<2> = Matrix {
[INFO] [stdout]     |               ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 152 |     pub fn minor(&self, row: usize, col: usize) -> f64 {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 155 |     pub fn cofactor(&self, row: usize, col: usize) -> f64 {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 161 |     pub fn is_invertible(&self) -> bool {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 164 |     pub fn inverse(&self) -> Self {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `IDENTITY`, `is_invertible`, and `inverse` are never used
[INFO] [stdout]    --> src/bin/ch9/matrix.rs:98:15
[INFO] [stdout]     |
[INFO] [stdout] 97  | impl Matrix<3> {
[INFO] [stdout]     | -------------- associated items in this implementation
[INFO] [stdout] 98  |     pub const IDENTITY: Matrix<3> = Matrix {
[INFO] [stdout]     |               ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 137 |     pub fn is_invertible(&self) -> bool {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 140 |     pub fn inverse(&self) -> Self {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `pattern::Pattern`
[INFO] [stdout]   --> src/bin/ch12/shape/mod.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 |     pattern::Pattern,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `pattern::Pattern`
[INFO] [stdout]  --> src/bin/ch12/shape/sphere.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     pattern::Pattern,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `A` should have a snake case name
[INFO] [stdout]    --> src/bin/ch8/transformations.rs:173:13
[INFO] [stdout]     |
[INFO] [stdout] 173 |         let A = Matrix::<4>::IDENTITY.rotation_x(FRAC_PI_2);
[INFO] [stdout]     |             ^ help: convert the identifier to snake case: `a`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `B` should have a snake case name
[INFO] [stdout]    --> src/bin/ch8/transformations.rs:174:13
[INFO] [stdout]     |
[INFO] [stdout] 174 |         let B = Matrix::<4>::IDENTITY.scaling(5.0, 5.0, 5.0);
[INFO] [stdout]     |             ^ help: convert the identifier to snake case: `b`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `C` should have a snake case name
[INFO] [stdout]    --> src/bin/ch8/transformations.rs:175:13
[INFO] [stdout]     |
[INFO] [stdout] 175 |         let C = Matrix::<4>::IDENTITY.translation(10.0, 5.0, 7.0);
[INFO] [stdout]     |             ^ help: convert the identifier to snake case (notice the capitalization): `c`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `p`
[INFO] [stdout]   --> src/bin/ch10/shape/plane.rs:49:31
[INFO] [stdout]    |
[INFO] [stdout] 49 |     fn local_normal_at(&self, p: &crate::tuple::Point) -> crate::tuple::Vector {
[INFO] [stdout]    |                               ^ help: if this is intentional, prefix it with an underscore: `_p`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `T` should have a snake case name
[INFO] [stdout]    --> src/bin/ch8/transformations.rs:190:13
[INFO] [stdout]     |
[INFO] [stdout] 190 |         let T = Matrix::<4>::IDENTITY
[INFO] [stdout]     |             ^ help: convert the identifier to snake case: `t`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `IDENTITY`, `minor`, `cofactor`, `is_invertible`, and `inverse` are never used
[INFO] [stdout]    --> src/bin/ch9/matrix.rs:155:15
[INFO] [stdout]     |
[INFO] [stdout] 154 | impl Matrix<2> {
[INFO] [stdout]     | -------------- associated items in this implementation
[INFO] [stdout] 155 |     pub const IDENTITY: Matrix<2> = Matrix {
[INFO] [stdout]     |               ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 158 |     pub fn minor(&self, row: usize, col: usize) -> f64 {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 161 |     pub fn cofactor(&self, row: usize, col: usize) -> f64 {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 167 |     pub fn is_invertible(&self) -> bool {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 170 |     pub fn inverse(&self) -> Self {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `pattern::Pattern`
[INFO] [stdout]   --> src/bin/ch12/ray.rs:10:13
[INFO] [stdout]    |
[INFO] [stdout] 10 | use crate::{pattern::Pattern, shape::Shape};
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `pattern::Pattern`
[INFO] [stdout]  --> src/bin/ch12/shape/plane.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     pattern::Pattern,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `A` should have a snake case name
[INFO] [stdout]    --> src/bin/ch9/transformations.rs:173:13
[INFO] [stdout]     |
[INFO] [stdout] 173 |         let A = Matrix::<4>::IDENTITY.rotation_x(FRAC_PI_2);
[INFO] [stdout]     |             ^ help: convert the identifier to snake case: `a`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `B` should have a snake case name
[INFO] [stdout]    --> src/bin/ch9/transformations.rs:174:13
[INFO] [stdout]     |
[INFO] [stdout] 174 |         let B = Matrix::<4>::IDENTITY.scaling(5.0, 5.0, 5.0);
[INFO] [stdout]     |             ^ help: convert the identifier to snake case: `b`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `C` should have a snake case name
[INFO] [stdout]    --> src/bin/ch9/transformations.rs:175:13
[INFO] [stdout]     |
[INFO] [stdout] 175 |         let C = Matrix::<4>::IDENTITY.translation(10.0, 5.0, 7.0);
[INFO] [stdout]     |             ^ help: convert the identifier to snake case (notice the capitalization): `c`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `T` should have a snake case name
[INFO] [stdout]    --> src/bin/ch9/transformations.rs:190:13
[INFO] [stdout]     |
[INFO] [stdout] 190 |         let T = Matrix::<4>::IDENTITY
[INFO] [stdout]     |             ^ help: convert the identifier to snake case: `t`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Pattern`
[INFO] [stdout]   --> src/bin/ch11/main.rs:32:39
[INFO] [stdout]    |
[INFO] [stdout] 32 |     pattern::{Checkerboard, Gradient, Pattern, Ring, Stripe},
[INFO] [stdout]    |                                       ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `pattern::Pattern`
[INFO] [stdout]  --> src/bin/ch11/shape/sphere.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     pattern::Pattern,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `pattern::Pattern`
[INFO] [stdout]   --> src/bin/ch11/shape/mod.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     pattern::Pattern,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `pattern::Pattern`
[INFO] [stdout]   --> src/bin/ch11/ray.rs:10:13
[INFO] [stdout]    |
[INFO] [stdout] 10 | use crate::{pattern::Pattern, shape::Shape};
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `pattern::Pattern`
[INFO] [stdout]  --> src/bin/ch11/shape/plane.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     pattern::Pattern,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `pattern::Pattern`
[INFO] [stdout]  --> src/bin/ch13/shape/sphere.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     pattern::Pattern,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `pattern::Pattern`
[INFO] [stdout]  --> src/bin/ch13/shape/plane.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     pattern::Pattern,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `pattern::Pattern`
[INFO] [stdout]   --> src/bin/ch13/ray.rs:10:13
[INFO] [stdout]    |
[INFO] [stdout] 10 | use crate::{pattern::Pattern, shape::Shape};
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `pattern::Pattern`
[INFO] [stdout]   --> src/bin/ch13/shape/mod.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 |     pattern::Pattern,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `transform`
[INFO] [stdout]   --> src/bin/ch12/pattern/checkerboard.rs:39:33
[INFO] [stdout]    |
[INFO] [stdout] 39 |     fn set_transform(&mut self, transform: Matrix<4>) {
[INFO] [stdout]    |                                 ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_transform`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `transform`
[INFO] [stdout]   --> src/bin/ch12/pattern/gradient.rs:34:33
[INFO] [stdout]    |
[INFO] [stdout] 34 |     fn set_transform(&mut self, transform: Matrix<4>) {
[INFO] [stdout]    |                                 ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_transform`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `transform`
[INFO] [stdout]   --> src/bin/ch12/pattern/ring.rs:29:33
[INFO] [stdout]    |
[INFO] [stdout] 29 |     fn set_transform(&mut self, transform: Matrix<4>) {
[INFO] [stdout]    |                                 ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_transform`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/bin/ch10/main.rs:87:9
[INFO] [stdout]    |
[INFO] [stdout] 87 |     let mut pattern = Checkerboard::new(Color::WHITE, Color::BLACK);
[INFO] [stdout]    |         ----^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `transform`
[INFO] [stdout]   --> src/bin/ch11/pattern/checkerboard.rs:39:33
[INFO] [stdout]    |
[INFO] [stdout] 39 |     fn set_transform(&mut self, transform: Matrix<4>) {
[INFO] [stdout]    |                                 ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_transform`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `transform`
[INFO] [stdout]   --> src/bin/ch11/pattern/gradient.rs:34:33
[INFO] [stdout]    |
[INFO] [stdout] 34 |     fn set_transform(&mut self, transform: Matrix<4>) {
[INFO] [stdout]    |                                 ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_transform`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `transform`
[INFO] [stdout]   --> src/bin/ch11/pattern/ring.rs:29:33
[INFO] [stdout]    |
[INFO] [stdout] 29 |     fn set_transform(&mut self, transform: Matrix<4>) {
[INFO] [stdout]    |                                 ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_transform`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `transform`
[INFO] [stdout]   --> src/bin/ch13/pattern/checkerboard.rs:39:33
[INFO] [stdout]    |
[INFO] [stdout] 39 |     fn set_transform(&mut self, transform: Matrix<4>) {
[INFO] [stdout]    |                                 ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_transform`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `transform`
[INFO] [stdout]   --> src/bin/ch13/pattern/gradient.rs:34:33
[INFO] [stdout]    |
[INFO] [stdout] 34 |     fn set_transform(&mut self, transform: Matrix<4>) {
[INFO] [stdout]    |                                 ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_transform`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `transform`
[INFO] [stdout]   --> src/bin/ch13/pattern/ring.rs:29:33
[INFO] [stdout]    |
[INFO] [stdout] 29 |     fn set_transform(&mut self, transform: Matrix<4>) {
[INFO] [stdout]    |                                 ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_transform`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `IDENTITY`, `is_invertible`, and `inverse` are never used
[INFO] [stdout]    --> src/bin/ch10/matrix.rs:98:15
[INFO] [stdout]     |
[INFO] [stdout] 97  | impl Matrix<3> {
[INFO] [stdout]     | -------------- associated items in this implementation
[INFO] [stdout] 98  |     pub const IDENTITY: Matrix<3> = Matrix {
[INFO] [stdout]     |               ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 137 |     pub fn is_invertible(&self) -> bool {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 140 |     pub fn inverse(&self) -> Self {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `IDENTITY`, `minor`, `cofactor`, `is_invertible`, and `inverse` are never used
[INFO] [stdout]    --> src/bin/ch10/matrix.rs:155:15
[INFO] [stdout]     |
[INFO] [stdout] 154 | impl Matrix<2> {
[INFO] [stdout]     | -------------- associated items in this implementation
[INFO] [stdout] 155 |     pub const IDENTITY: Matrix<2> = Matrix {
[INFO] [stdout]     |               ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 158 |     pub fn minor(&self, row: usize, col: usize) -> f64 {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 161 |     pub fn cofactor(&self, row: usize, col: usize) -> f64 {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 167 |     pub fn is_invertible(&self) -> bool {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 170 |     pub fn inverse(&self) -> Self {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `set_material` is never used
[INFO] [stdout]   --> src/bin/ch10/shape/mod.rs:21:8
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub trait Shape: Debug {
[INFO] [stdout]    |           ----- method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 21 |     fn set_material(&mut self, material: Material);
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `transform`
[INFO] [stdout]   --> src/bin/ch12/shape/cube.rs:58:33
[INFO] [stdout]    |
[INFO] [stdout] 58 |     fn set_transform(&mut self, transform: crate::matrix::Matrix<4>) {
[INFO] [stdout]    |                                 ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_transform`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `material`
[INFO] [stdout]   --> src/bin/ch12/shape/cube.rs:66:32
[INFO] [stdout]    |
[INFO] [stdout] 66 |     fn set_material(&mut self, material: crate::materials::Material) {
[INFO] [stdout]    |                                ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_material`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `A` should have a snake case name
[INFO] [stdout]    --> src/bin/ch10/transformations.rs:173:13
[INFO] [stdout]     |
[INFO] [stdout] 173 |         let A = Matrix::<4>::IDENTITY.rotation_x(FRAC_PI_2);
[INFO] [stdout]     |             ^ help: convert the identifier to snake case: `a`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `B` should have a snake case name
[INFO] [stdout]    --> src/bin/ch10/transformations.rs:174:13
[INFO] [stdout]     |
[INFO] [stdout] 174 |         let B = Matrix::<4>::IDENTITY.scaling(5.0, 5.0, 5.0);
[INFO] [stdout]     |             ^ help: convert the identifier to snake case: `b`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `C` should have a snake case name
[INFO] [stdout]    --> src/bin/ch10/transformations.rs:175:13
[INFO] [stdout]     |
[INFO] [stdout] 175 |         let C = Matrix::<4>::IDENTITY.translation(10.0, 5.0, 7.0);
[INFO] [stdout]     |             ^ help: convert the identifier to snake case (notice the capitalization): `c`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `T` should have a snake case name
[INFO] [stdout]    --> src/bin/ch10/transformations.rs:190:13
[INFO] [stdout]     |
[INFO] [stdout] 190 |         let T = Matrix::<4>::IDENTITY
[INFO] [stdout]     |             ^ help: convert the identifier to snake case: `t`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `p`
[INFO] [stdout]   --> src/bin/ch12/shape/plane.rs:49:31
[INFO] [stdout]    |
[INFO] [stdout] 49 |     fn local_normal_at(&self, p: &crate::tuple::Point) -> crate::tuple::Vector {
[INFO] [stdout]    |                               ^ help: if this is intentional, prefix it with an underscore: `_p`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `p`
[INFO] [stdout]   --> src/bin/ch11/shape/plane.rs:49:31
[INFO] [stdout]    |
[INFO] [stdout] 49 |     fn local_normal_at(&self, p: &crate::tuple::Point) -> crate::tuple::Vector {
[INFO] [stdout]    |                               ^ help: if this is intentional, prefix it with an underscore: `_p`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `transform`
[INFO] [stdout]   --> src/bin/ch13/shape/cone.rs:75:33
[INFO] [stdout]    |
[INFO] [stdout] 75 |     fn set_transform(&mut self, transform: Matrix<4>) {
[INFO] [stdout]    |                                 ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_transform`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `material`
[INFO] [stdout]   --> src/bin/ch13/shape/cone.rs:83:32
[INFO] [stdout]    |
[INFO] [stdout] 83 |     fn set_material(&mut self, material: Material) {
[INFO] [stdout]    |                                ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_material`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `transform`
[INFO] [stdout]   --> src/bin/ch13/shape/cube.rs:58:33
[INFO] [stdout]    |
[INFO] [stdout] 58 |     fn set_transform(&mut self, transform: crate::matrix::Matrix<4>) {
[INFO] [stdout]    |                                 ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_transform`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `material`
[INFO] [stdout]   --> src/bin/ch13/shape/cube.rs:66:32
[INFO] [stdout]    |
[INFO] [stdout] 66 |     fn set_material(&mut self, material: crate::materials::Material) {
[INFO] [stdout]    |                                ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_material`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `transform`
[INFO] [stdout]   --> src/bin/ch13/shape/cylinder.rs:76:33
[INFO] [stdout]    |
[INFO] [stdout] 76 |     fn set_transform(&mut self, transform: crate::matrix::Matrix<4>) {
[INFO] [stdout]    |                                 ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_transform`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `material`
[INFO] [stdout]   --> src/bin/ch13/shape/cylinder.rs:84:32
[INFO] [stdout]    |
[INFO] [stdout] 84 |     fn set_material(&mut self, material: crate::materials::Material) {
[INFO] [stdout]    |                                ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_material`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `p`
[INFO] [stdout]   --> src/bin/ch13/shape/plane.rs:49:31
[INFO] [stdout]    |
[INFO] [stdout] 49 |     fn local_normal_at(&self, p: &crate::tuple::Point) -> crate::tuple::Vector {
[INFO] [stdout]    |                               ^ help: if this is intentional, prefix it with an underscore: `_p`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/bin/ch11/main.rs:46:9
[INFO] [stdout]    |
[INFO] [stdout] 46 |     let mut pattern = Checkerboard::new(Color::WHITE, Color::BLACK);
[INFO] [stdout]    |         ----^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `float_cmp` is never used
[INFO] [stdout]    --> src/bin/ch12/main.rs:144:4
[INFO] [stdout]     |
[INFO] [stdout] 144 | fn float_cmp(first: &f64, second: &f64) -> std::cmp::Ordering {
[INFO] [stdout]     |    ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `IDENTITY`, `is_invertible`, and `inverse` are never used
[INFO] [stdout]    --> src/bin/ch12/matrix.rs:98:15
[INFO] [stdout]     |
[INFO] [stdout] 97  | impl Matrix<3> {
[INFO] [stdout]     | -------------- associated items in this implementation
[INFO] [stdout] 98  |     pub const IDENTITY: Matrix<3> = Matrix {
[INFO] [stdout]     |               ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 137 |     pub fn is_invertible(&self) -> bool {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 140 |     pub fn inverse(&self) -> Self {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `IDENTITY`, `minor`, `cofactor`, `is_invertible`, and `inverse` are never used
[INFO] [stdout]    --> src/bin/ch12/matrix.rs:155:15
[INFO] [stdout]     |
[INFO] [stdout] 154 | impl Matrix<2> {
[INFO] [stdout]     | -------------- associated items in this implementation
[INFO] [stdout] 155 |     pub const IDENTITY: Matrix<2> = Matrix {
[INFO] [stdout]     |               ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 158 |     pub fn minor(&self, row: usize, col: usize) -> f64 {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 161 |     pub fn cofactor(&self, row: usize, col: usize) -> f64 {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 167 |     pub fn is_invertible(&self) -> bool {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 170 |     pub fn inverse(&self) -> Self {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `set_material` is never used
[INFO] [stdout]   --> src/bin/ch12/shape/mod.rs:23:8
[INFO] [stdout]    |
[INFO] [stdout] 18 | pub trait Shape: Debug {
[INFO] [stdout]    |           ----- method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 23 |     fn set_material(&mut self, material: Material);
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `magnitude` is never used
[INFO] [stdout]   --> src/bin/ch12/tuple/color.rs:26:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | impl Color {
[INFO] [stdout]    | ---------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 26 |     pub fn magnitude(&self) -> f64 {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `Schlick_approximation_under_total_internal_reflection` should have a snake case name
[INFO] [stdout]    --> src/bin/ch12/ray.rs:348:8
[INFO] [stdout]     |
[INFO] [stdout] 348 |     fn Schlick_approximation_under_total_internal_reflection() {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case (notice the capitalization): `schlick_approximation_under_total_internal_reflection`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `A` should have a snake case name
[INFO] [stdout]    --> src/bin/ch12/transformations.rs:173:13
[INFO] [stdout]     |
[INFO] [stdout] 173 |         let A = Matrix::<4>::IDENTITY.rotation_x(FRAC_PI_2);
[INFO] [stdout]     |             ^ help: convert the identifier to snake case: `a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `B` should have a snake case name
[INFO] [stdout]    --> src/bin/ch12/transformations.rs:174:13
[INFO] [stdout]     |
[INFO] [stdout] 174 |         let B = Matrix::<4>::IDENTITY.scaling(5.0, 5.0, 5.0);
[INFO] [stdout]     |             ^ help: convert the identifier to snake case: `b`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `C` should have a snake case name
[INFO] [stdout]    --> src/bin/ch12/transformations.rs:175:13
[INFO] [stdout]     |
[INFO] [stdout] 175 |         let C = Matrix::<4>::IDENTITY.translation(10.0, 5.0, 7.0);
[INFO] [stdout]     |             ^ help: convert the identifier to snake case (notice the capitalization): `c`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `T` should have a snake case name
[INFO] [stdout]    --> src/bin/ch12/transformations.rs:190:13
[INFO] [stdout]     |
[INFO] [stdout] 190 |         let T = Matrix::<4>::IDENTITY
[INFO] [stdout]     |             ^ help: convert the identifier to snake case: `t`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `IDENTITY`, `is_invertible`, and `inverse` are never used
[INFO] [stdout]    --> src/bin/ch11/matrix.rs:98:15
[INFO] [stdout]     |
[INFO] [stdout] 97  | impl Matrix<3> {
[INFO] [stdout]     | -------------- associated items in this implementation
[INFO] [stdout] 98  |     pub const IDENTITY: Matrix<3> = Matrix {
[INFO] [stdout]     |               ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 137 |     pub fn is_invertible(&self) -> bool {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 140 |     pub fn inverse(&self) -> Self {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `IDENTITY`, `minor`, `cofactor`, `is_invertible`, and `inverse` are never used
[INFO] [stdout]    --> src/bin/ch11/matrix.rs:155:15
[INFO] [stdout]     |
[INFO] [stdout] 154 | impl Matrix<2> {
[INFO] [stdout]     | -------------- associated items in this implementation
[INFO] [stdout] 155 |     pub const IDENTITY: Matrix<2> = Matrix {
[INFO] [stdout]     |               ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 158 |     pub fn minor(&self, row: usize, col: usize) -> f64 {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 161 |     pub fn cofactor(&self, row: usize, col: usize) -> f64 {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 167 |     pub fn is_invertible(&self) -> bool {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 170 |     pub fn inverse(&self) -> Self {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `set_material` is never used
[INFO] [stdout]   --> src/bin/ch11/shape/mod.rs:21:8
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub trait Shape: Debug {
[INFO] [stdout]    |           ----- method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 21 |     fn set_material(&mut self, material: Material);
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `magnitude` is never used
[INFO] [stdout]   --> src/bin/ch11/tuple/color.rs:26:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | impl Color {
[INFO] [stdout]    | ---------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 26 |     pub fn magnitude(&self) -> f64 {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `Schlick_approximation_under_total_internal_reflection` should have a snake case name
[INFO] [stdout]    --> src/bin/ch11/ray.rs:348:8
[INFO] [stdout]     |
[INFO] [stdout] 348 |     fn Schlick_approximation_under_total_internal_reflection() {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case (notice the capitalization): `schlick_approximation_under_total_internal_reflection`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `A` should have a snake case name
[INFO] [stdout]    --> src/bin/ch11/transformations.rs:173:13
[INFO] [stdout]     |
[INFO] [stdout] 173 |         let A = Matrix::<4>::IDENTITY.rotation_x(FRAC_PI_2);
[INFO] [stdout]     |             ^ help: convert the identifier to snake case: `a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `B` should have a snake case name
[INFO] [stdout]    --> src/bin/ch11/transformations.rs:174:13
[INFO] [stdout]     |
[INFO] [stdout] 174 |         let B = Matrix::<4>::IDENTITY.scaling(5.0, 5.0, 5.0);
[INFO] [stdout]     |             ^ help: convert the identifier to snake case: `b`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `C` should have a snake case name
[INFO] [stdout]    --> src/bin/ch11/transformations.rs:175:13
[INFO] [stdout]     |
[INFO] [stdout] 175 |         let C = Matrix::<4>::IDENTITY.translation(10.0, 5.0, 7.0);
[INFO] [stdout]     |             ^ help: convert the identifier to snake case (notice the capitalization): `c`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `T` should have a snake case name
[INFO] [stdout]    --> src/bin/ch11/transformations.rs:190:13
[INFO] [stdout]     |
[INFO] [stdout] 190 |         let T = Matrix::<4>::IDENTITY
[INFO] [stdout]     |             ^ help: convert the identifier to snake case: `t`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `float_cmp` is never used
[INFO] [stdout]    --> src/bin/ch13/main.rs:160:4
[INFO] [stdout]     |
[INFO] [stdout] 160 | fn float_cmp(first: &f64, second: &f64) -> std::cmp::Ordering {
[INFO] [stdout]     |    ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `IDENTITY`, `is_invertible`, and `inverse` are never used
[INFO] [stdout]    --> src/bin/ch13/matrix.rs:98:15
[INFO] [stdout]     |
[INFO] [stdout] 97  | impl Matrix<3> {
[INFO] [stdout]     | -------------- associated items in this implementation
[INFO] [stdout] 98  |     pub const IDENTITY: Matrix<3> = Matrix {
[INFO] [stdout]     |               ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 137 |     pub fn is_invertible(&self) -> bool {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 140 |     pub fn inverse(&self) -> Self {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `IDENTITY`, `minor`, `cofactor`, `is_invertible`, and `inverse` are never used
[INFO] [stdout]    --> src/bin/ch13/matrix.rs:155:15
[INFO] [stdout]     |
[INFO] [stdout] 154 | impl Matrix<2> {
[INFO] [stdout]     | -------------- associated items in this implementation
[INFO] [stdout] 155 |     pub const IDENTITY: Matrix<2> = Matrix {
[INFO] [stdout]     |               ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 158 |     pub fn minor(&self, row: usize, col: usize) -> f64 {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 161 |     pub fn cofactor(&self, row: usize, col: usize) -> f64 {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 167 |     pub fn is_invertible(&self) -> bool {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 170 |     pub fn inverse(&self) -> Self {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `set_material` is never used
[INFO] [stdout]   --> src/bin/ch13/shape/mod.rs:27:8
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub trait Shape: Debug {
[INFO] [stdout]    |           ----- method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 27 |     fn set_material(&mut self, material: Material);
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `magnitude` is never used
[INFO] [stdout]   --> src/bin/ch13/tuple/color.rs:26:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | impl Color {
[INFO] [stdout]    | ---------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 26 |     pub fn magnitude(&self) -> f64 {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `Schlick_approximation_under_total_internal_reflection` should have a snake case name
[INFO] [stdout]    --> src/bin/ch13/ray.rs:348:8
[INFO] [stdout]     |
[INFO] [stdout] 348 |     fn Schlick_approximation_under_total_internal_reflection() {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case (notice the capitalization): `schlick_approximation_under_total_internal_reflection`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `A` should have a snake case name
[INFO] [stdout]    --> src/bin/ch13/transformations.rs:173:13
[INFO] [stdout]     |
[INFO] [stdout] 173 |         let A = Matrix::<4>::IDENTITY.rotation_x(FRAC_PI_2);
[INFO] [stdout]     |             ^ help: convert the identifier to snake case: `a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `B` should have a snake case name
[INFO] [stdout]    --> src/bin/ch13/transformations.rs:174:13
[INFO] [stdout]     |
[INFO] [stdout] 174 |         let B = Matrix::<4>::IDENTITY.scaling(5.0, 5.0, 5.0);
[INFO] [stdout]     |             ^ help: convert the identifier to snake case: `b`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `C` should have a snake case name
[INFO] [stdout]    --> src/bin/ch13/transformations.rs:175:13
[INFO] [stdout]     |
[INFO] [stdout] 175 |         let C = Matrix::<4>::IDENTITY.translation(10.0, 5.0, 7.0);
[INFO] [stdout]     |             ^ help: convert the identifier to snake case (notice the capitalization): `c`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `T` should have a snake case name
[INFO] [stdout]    --> src/bin/ch13/transformations.rs:190:13
[INFO] [stdout]     |
[INFO] [stdout] 190 |         let T = Matrix::<4>::IDENTITY
[INFO] [stdout]     |             ^ help: convert the identifier to snake case: `t`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.12s
[INFO] running `Command { std: "docker" "inspect" "cdd349e88daef8ccbee6a834c881a53554d51e07b27bba391a7ee80084d88fd4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cdd349e88daef8ccbee6a834c881a53554d51e07b27bba391a7ee80084d88fd4", kill_on_drop: false }`
[INFO] [stdout] cdd349e88daef8ccbee6a834c881a53554d51e07b27bba391a7ee80084d88fd4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+nightly-2024-10-28" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] cb9bb9e00fa9c7ea25f93c1defa45d415261bc55c121321ae5303b9fe85195d4
[INFO] running `Command { std: "docker" "start" "-a" "cb9bb9e00fa9c7ea25f93c1defa45d415261bc55c121321ae5303b9fe85195d4", kill_on_drop: false }`
[INFO] [stderr] warning: the feature `generic_const_exprs` is incomplete and may not be safe to use and/or cause compiler crashes
[INFO] [stderr]  --> src/bin/ch13/main.rs:1:12
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(generic_const_exprs)]
[INFO] [stderr]   |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: see issue #76560 <https://github.com/rust-lang/rust/issues/76560> for more information
[INFO] [stderr]   = note: `#[warn(incomplete_features)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `pattern::Stripe`
[INFO] [stderr]  --> src/bin/ch13/materials.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 |     pattern::Stripe,
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `f64::consts::FRAC_2_PI`
[INFO] [stderr]   --> src/bin/ch13/materials.rs:90:43
[INFO] [stderr]    |
[INFO] [stderr] 90 |     use std::{f64::consts::FRAC_1_SQRT_2, f64::consts::FRAC_2_PI};
[INFO] [stderr]    |                                           ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Intersection`, `Plane`, and `Ray`
[INFO] [stderr]   --> src/bin/ch13/materials.rs:94:15
[INFO] [stderr]    |
[INFO] [stderr] 94 |         ray::{Intersection, Ray},
[INFO] [stderr]    |               ^^^^^^^^^^^^  ^^^
[INFO] [stderr] 95 |         shape::{Plane, Sphere},
[INFO] [stderr]    |                 ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `shape::Shape`
[INFO] [stderr]  --> src/bin/ch13/pattern/stripe.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 |     shape::Shape,
[INFO] [stderr]   |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `cell::RefCell` and `rc::Rc`
[INFO] [stderr]  --> src/bin/ch13/pattern/mod.rs:5:11
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::{cell::RefCell, fmt::Debug, rc::Rc};
[INFO] [stderr]   |           ^^^^^^^^^^^^^              ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `World`
[INFO] [stderr]  --> src/bin/ch13/ray.rs:5:34
[INFO] [stderr]   |
[INFO] [stderr] 5 | use crate::world::{Computations, World};
[INFO] [stderr]   |                                  ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `DEFAULT_REFLECTION_COUNT` and `tuple::Color`
[INFO] [stderr]   --> src/bin/ch13/ray.rs:94:73
[INFO] [stderr]    |
[INFO] [stderr] 94 |         matrix::Matrix, shape::Sphere, transformations::Transformation, tuple::Color,
[INFO] [stderr]    |                                                                         ^^^^^^^^^^^^
[INFO] [stderr] 95 |         world::prepare_computations, DEFAULT_REFLECTION_COUNT,
[INFO] [stderr]    |                                      ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Point`
[INFO] [stderr]  --> src/bin/ch13/shape/cube.rs:6:13
[INFO] [stderr]   |
[INFO] [stderr] 6 |     tuple::{Point, Tuple, Vector},
[INFO] [stderr]   |             ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `float_cmp::approx_eq`
[INFO] [stderr]  --> src/bin/ch13/shape/plane.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use float_cmp::approx_eq;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `cell::RefCell` and `rc::Rc`
[INFO] [stderr]  --> src/bin/ch13/shape/sphere.rs:1:11
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::{cell::RefCell, rc::Rc};
[INFO] [stderr]   |           ^^^^^^^^^^^^^  ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Intersection`
[INFO] [stderr]  --> src/bin/ch13/shape/sphere.rs:7:11
[INFO] [stderr]   |
[INFO] [stderr] 7 |     ray::{Intersection, Ray},
[INFO] [stderr]   |           ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `cell::RefCell` and `rc::Rc`
[INFO] [stderr]  --> src/bin/ch13/shape/mod.rs:6:11
[INFO] [stderr]   |
[INFO] [stderr] 6 | use std::{cell::RefCell, fmt::Debug, rc::Rc};
[INFO] [stderr]   |           ^^^^^^^^^^^^^              ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Intersection`
[INFO] [stderr]   --> src/bin/ch13/shape/mod.rs:18:11
[INFO] [stderr]    |
[INFO] [stderr] 18 |     ray::{Intersection, Ray},
[INFO] [stderr]    |           ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `any::type_name`
[INFO] [stderr]   --> src/bin/ch13/shape/mod.rs:63:9
[INFO] [stderr]    |
[INFO] [stderr] 63 |         any::type_name,
[INFO] [stderr]    |         ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `cell::RefMut`
[INFO] [stderr]    --> src/bin/ch13/world.rs:276:9
[INFO] [stderr]     |
[INFO] [stderr] 276 |         cell::RefMut,
[INFO] [stderr]     |         ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `materials::Material`
[INFO] [stderr]   --> src/bin/ch13/main.rs:17:5
[INFO] [stderr]    |
[INFO] [stderr] 17 | use materials::Material;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `FRAC_PI_3`, `FRAC_PI_4`, and `FRAC_PI_6`
[INFO] [stderr]   --> src/bin/ch13/main.rs:24:30
[INFO] [stderr]    |
[INFO] [stderr] 24 |     f64::consts::{FRAC_PI_2, FRAC_PI_3, FRAC_PI_4, FRAC_PI_6},
[INFO] [stderr]    |                              ^^^^^^^^^  ^^^^^^^^^  ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Cone`, `Gradient`, `Ring`, and `lights::PointLight`
[INFO] [stderr]   --> src/bin/ch13/main.rs:33:5
[INFO] [stderr]    |
[INFO] [stderr] 33 |     lights::PointLight,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 34 |     pattern::{Checkerboard, Gradient, Pattern, Ring, Stripe},
[INFO] [stderr]    |                             ^^^^^^^^           ^^^^
[INFO] [stderr] 35 |     shape::{Cone, Cylinder},
[INFO] [stderr]    |             ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/bin/ch13/pattern/mod.rs:20:40
[INFO] [stderr]    |
[INFO] [stderr] 20 |     fn pattern_at_shape(&self, shape: &Shape, point: &Point) -> Color {
[INFO] [stderr]    |                                        ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 20 |     fn pattern_at_shape(&self, shape: &dyn Shape, point: &Point) -> Color {
[INFO] [stderr]    |                                        +++
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `pattern::Pattern`
[INFO] [stderr]  --> src/bin/ch13/shape/sphere.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 |     pattern::Pattern,
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `pattern::Pattern`
[INFO] [stderr]  --> src/bin/ch13/shape/plane.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 |     pattern::Pattern,
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `pattern::Pattern`
[INFO] [stderr]   --> src/bin/ch13/ray.rs:10:13
[INFO] [stderr]    |
[INFO] [stderr] 10 | use crate::{pattern::Pattern, shape::Shape};
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `pattern::Pattern`
[INFO] [stderr]   --> src/bin/ch13/shape/mod.rs:17:5
[INFO] [stderr]    |
[INFO] [stderr] 17 |     pattern::Pattern,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `transform`
[INFO] [stderr]   --> src/bin/ch13/pattern/checkerboard.rs:39:33
[INFO] [stderr]    |
[INFO] [stderr] 39 |     fn set_transform(&mut self, transform: Matrix<4>) {
[INFO] [stderr]    |                                 ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_transform`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `transform`
[INFO] [stderr]   --> src/bin/ch13/pattern/gradient.rs:34:33
[INFO] [stderr]    |
[INFO] [stderr] 34 |     fn set_transform(&mut self, transform: Matrix<4>) {
[INFO] [stderr]    |                                 ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_transform`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `transform`
[INFO] [stderr]   --> src/bin/ch13/pattern/ring.rs:29:33
[INFO] [stderr]    |
[INFO] [stderr] 29 |     fn set_transform(&mut self, transform: Matrix<4>) {
[INFO] [stderr]    |                                 ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_transform`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `transform`
[INFO] [stderr]   --> src/bin/ch13/shape/cone.rs:75:33
[INFO] [stderr]    |
[INFO] [stderr] 75 |     fn set_transform(&mut self, transform: Matrix<4>) {
[INFO] [stderr]    |                                 ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_transform`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `material`
[INFO] [stderr]   --> src/bin/ch13/shape/cone.rs:83:32
[INFO] [stderr]    |
[INFO] [stderr] 83 |     fn set_material(&mut self, material: Material) {
[INFO] [stderr]    |                                ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_material`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `transform`
[INFO] [stderr]   --> src/bin/ch13/shape/cube.rs:58:33
[INFO] [stderr]    |
[INFO] [stderr] 58 |     fn set_transform(&mut self, transform: crate::matrix::Matrix<4>) {
[INFO] [stderr]    |                                 ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_transform`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `material`
[INFO] [stderr]   --> src/bin/ch13/shape/cube.rs:66:32
[INFO] [stderr]    |
[INFO] [stderr] 66 |     fn set_material(&mut self, material: crate::materials::Material) {
[INFO] [stderr]    |                                ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_material`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `transform`
[INFO] [stderr]   --> src/bin/ch13/shape/cylinder.rs:76:33
[INFO] [stderr]    |
[INFO] [stderr] 76 |     fn set_transform(&mut self, transform: crate::matrix::Matrix<4>) {
[INFO] [stderr]    |                                 ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_transform`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `material`
[INFO] [stderr]   --> src/bin/ch13/shape/cylinder.rs:84:32
[INFO] [stderr]    |
[INFO] [stderr] 84 |     fn set_material(&mut self, material: crate::materials::Material) {
[INFO] [stderr]    |                                ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_material`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `p`
[INFO] [stderr]   --> src/bin/ch13/shape/plane.rs:49:31
[INFO] [stderr]    |
[INFO] [stderr] 49 |     fn local_normal_at(&self, p: &crate::tuple::Point) -> crate::tuple::Vector {
[INFO] [stderr]    |                               ^ help: if this is intentional, prefix it with an underscore: `_p`
[INFO] [stderr] 
[INFO] [stderr] warning: function `float_cmp` is never used
[INFO] [stderr]    --> src/bin/ch13/main.rs:160:4
[INFO] [stderr]     |
[INFO] [stderr] 160 | fn float_cmp(first: &f64, second: &f64) -> std::cmp::Ordering {
[INFO] [stderr]     |    ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated items `IDENTITY`, `is_invertible`, and `inverse` are never used
[INFO] [stderr]    --> src/bin/ch13/matrix.rs:98:15
[INFO] [stderr]     |
[INFO] [stderr] 97  | impl Matrix<3> {
[INFO] [stderr]     | -------------- associated items in this implementation
[INFO] [stderr] 98  |     pub const IDENTITY: Matrix<3> = Matrix {
[INFO] [stderr]     |               ^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 137 |     pub fn is_invertible(&self) -> bool {
[INFO] [stderr]     |            ^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 140 |     pub fn inverse(&self) -> Self {
[INFO] [stderr]     |            ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated items `IDENTITY`, `minor`, `cofactor`, `is_invertible`, and `inverse` are never used
[INFO] [stderr]    --> src/bin/ch13/matrix.rs:155:15
[INFO] [stderr]     |
[INFO] [stderr] 154 | impl Matrix<2> {
[INFO] [stderr]     | -------------- associated items in this implementation
[INFO] [stderr] 155 |     pub const IDENTITY: Matrix<2> = Matrix {
[INFO] [stderr]     |               ^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 158 |     pub fn minor(&self, row: usize, col: usize) -> f64 {
[INFO] [stderr]     |            ^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 161 |     pub fn cofactor(&self, row: usize, col: usize) -> f64 {
[INFO] [stderr]     |            ^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 167 |     pub fn is_invertible(&self) -> bool {
[INFO] [stderr]     |            ^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 170 |     pub fn inverse(&self) -> Self {
[INFO] [stderr]     |            ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method `set_material` is never used
[INFO] [stderr]   --> src/bin/ch13/shape/mod.rs:27:8
[INFO] [stderr]    |
[INFO] [stderr] 22 | pub trait Shape: Debug {
[INFO] [stderr]    |           ----- method in this trait
[INFO] [stderr] ...
[INFO] [stderr] 27 |     fn set_material(&mut self, material: Material);
[INFO] [stderr]    |        ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method `magnitude` is never used
[INFO] [stderr]   --> src/bin/ch13/tuple/color.rs:26:12
[INFO] [stderr]    |
[INFO] [stderr] 11 | impl Color {
[INFO] [stderr]    | ---------- method in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 26 |     pub fn magnitude(&self) -> f64 {
[INFO] [stderr]    |            ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `Schlick_approximation_under_total_internal_reflection` should have a snake case name
[INFO] [stderr]    --> src/bin/ch13/ray.rs:348:8
[INFO] [stderr]     |
[INFO] [stderr] 348 |     fn Schlick_approximation_under_total_internal_reflection() {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case (notice the capitalization): `schlick_approximation_under_total_internal_reflection`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable `A` should have a snake case name
[INFO] [stderr]    --> src/bin/ch13/transformations.rs:173:13
[INFO] [stderr]     |
[INFO] [stderr] 173 |         let A = Matrix::<4>::IDENTITY.rotation_x(FRAC_PI_2);
[INFO] [stderr]     |             ^ help: convert the identifier to snake case: `a`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `B` should have a snake case name
[INFO] [stderr]    --> src/bin/ch13/transformations.rs:174:13
[INFO] [stderr]     |
[INFO] [stderr] 174 |         let B = Matrix::<4>::IDENTITY.scaling(5.0, 5.0, 5.0);
[INFO] [stderr]     |             ^ help: convert the identifier to snake case: `b`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `C` should have a snake case name
[INFO] [stderr]    --> src/bin/ch13/transformations.rs:175:13
[INFO] [stderr]     |
[INFO] [stderr] 175 |         let C = Matrix::<4>::IDENTITY.translation(10.0, 5.0, 7.0);
[INFO] [stderr]     |             ^ help: convert the identifier to snake case (notice the capitalization): `c`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `T` should have a snake case name
[INFO] [stderr]    --> src/bin/ch13/transformations.rs:190:13
[INFO] [stderr]     |
[INFO] [stderr] 190 |         let T = Matrix::<4>::IDENTITY
[INFO] [stderr]     |             ^ help: convert the identifier to snake case: `t`
[INFO] [stderr] 
[INFO] [stderr] warning: `ray_tracer` (bin "ch13" test) generated 44 warnings (run `cargo fix --bin "ch13" --tests` to apply 19 suggestions)
[INFO] [stderr] warning: the feature `generic_const_exprs` is incomplete and may not be safe to use and/or cause compiler crashes
[INFO] [stderr]  --> src/bin/ch6/main.rs:1:12
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(generic_const_exprs)]
[INFO] [stderr]   |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: see issue #76560 <https://github.com/rust-lang/rust/issues/76560> for more information
[INFO] [stderr]   = note: `#[warn(incomplete_features)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated items `IDENTITY`, `is_invertible`, and `inverse` are never used
[INFO] [stderr]    --> src/bin/ch6/matrix.rs:92:15
[INFO] [stderr]     |
[INFO] [stderr] 91  | impl Matrix<3> {
[INFO] [stderr]     | -------------- associated items in this implementation
[INFO] [stderr] 92  |     pub const IDENTITY: Matrix<3> = Matrix {
[INFO] [stderr]     |               ^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 131 |     pub fn is_invertible(&self) -> bool {
[INFO] [stderr]     |            ^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 134 |     pub fn inverse(&self) -> Self {
[INFO] [stderr]     |            ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated items `IDENTITY`, `minor`, `cofactor`, `is_invertible`, and `inverse` are never used
[INFO] [stderr]    --> src/bin/ch6/matrix.rs:149:15
[INFO] [stderr]     |
[INFO] [stderr] 148 | impl Matrix<2> {
[INFO] [stderr]     | -------------- associated items in this implementation
[INFO] [stderr] 149 |     pub const IDENTITY: Matrix<2> = Matrix {
[INFO] [stderr]     |               ^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 152 |     pub fn minor(&self, row: usize, col: usize) -> f64 {
[INFO] [stderr]     |            ^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 155 |     pub fn cofactor(&self, row: usize, col: usize) -> f64 {
[INFO] [stderr]     |            ^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 161 |     pub fn is_invertible(&self) -> bool {
[INFO] [stderr]     |            ^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 164 |     pub fn inverse(&self) -> Self {
[INFO] [stderr]     |            ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method `cross` is never used
[INFO] [stderr]   --> src/bin/ch6/tuple/mod.rs:20:8
[INFO] [stderr]    |
[INFO] [stderr] 10 | pub trait Tuple: Add + Sub + Neg + Mul<f64> + Div<f64> + Sized {
[INFO] [stderr]    |           ----- method in this trait
[INFO] [stderr] ...
[INFO] [stderr] 20 |     fn cross(&self, other: Self) -> Self {
[INFO] [stderr]    |        ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable `A` should have a snake case name
[INFO] [stderr]    --> src/bin/ch6/transformations.rs:154:13
[INFO] [stderr]     |
[INFO] [stderr] 154 |         let A = Matrix::<4>::IDENTITY.rotation_x(FRAC_PI_2);
[INFO] [stderr]     |             ^ help: convert the identifier to snake case: `a`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable `B` should have a snake case name
[INFO] [stderr]    --> src/bin/ch6/transformations.rs:155:13
[INFO] [stderr]     |
[INFO] [stderr] 155 |         let B = Matrix::<4>::IDENTITY.scaling(5.0, 5.0, 5.0);
[INFO] [stderr]     |             ^ help: convert the identifier to snake case: `b`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `C` should have a snake case name
[INFO] [stderr]    --> src/bin/ch6/transformations.rs:156:13
[INFO] [stderr]     |
[INFO] [stderr] 156 |         let C = Matrix::<4>::IDENTITY.translation(10.0, 5.0, 7.0);
[INFO] [stderr]     |             ^ help: convert the identifier to snake case (notice the capitalization): `c`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `T` should have a snake case name
[INFO] [stderr]    --> src/bin/ch6/transformations.rs:171:13
[INFO] [stderr]     |
[INFO] [stderr] 171 |         let T = Matrix::<4>::IDENTITY
[INFO] [stderr]     |             ^ help: convert the identifier to snake case: `t`
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `io::Write`
[INFO] [stderr]  --> src/bin/ch2/main.rs:2:11
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::{io::Write};
[INFO] [stderr]   |           ^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: methods `w`, `dot`, and `cross` are never used
[INFO] [stderr]   --> src/bin/ch2/tuple/mod.rs:15:8
[INFO] [stderr]    |
[INFO] [stderr] 10 | pub trait Tuple: Add + Sub + Neg + Mul<f64> + Div<f64> + Sized {
[INFO] [stderr]    |           ----- methods in this trait
[INFO] [stderr] ...
[INFO] [stderr] 15 |     fn w(&self) -> f64;
[INFO] [stderr]    |        ^
[INFO] [stderr] 16 |     fn dot(&self, other: Self) -> f64 {
[INFO] [stderr]    |        ^^^
[INFO] [stderr] ...
[INFO] [stderr] 20 |     fn cross(&self, other: Self) -> Self {
[INFO] [stderr]    |        ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: the feature `generic_const_exprs` is incomplete and may not be safe to use and/or cause compiler crashes
[INFO] [stderr]  --> src/bin/ch3/main.rs:1:12
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(generic_const_exprs)]
[INFO] [stderr]   |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: see issue #76560 <https://github.com/rust-lang/rust/issues/76560> for more information
[INFO] [stderr]   = note: `#[warn(incomplete_features)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method `to_ppm` is never used
[INFO] [stderr]   --> src/bin/ch3/canvas/mod.rs:32:12
[INFO] [stderr]    |
[INFO] [stderr] 15 | impl Canvas {
[INFO] [stderr]    | ----------- method in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 32 |     pub fn to_ppm(&self, filename: &str) -> io::Result<()> {
[INFO] [stderr]    |            ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated items `IDENTITY`, `is_invertible`, and `inverse` are never used
[INFO] [stderr]    --> src/bin/ch3/matrix.rs:90:15
[INFO] [stderr]     |
[INFO] [stderr] 89  | impl Matrix<3> {
[INFO] [stderr]     | -------------- associated items in this implementation
[INFO] [stderr] 90  |     pub const IDENTITY: Matrix<3> = Matrix {
[INFO] [stderr]     |               ^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 129 |     pub fn is_invertible(&self) -> bool {
[INFO] [stderr]     |            ^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 132 |     pub fn inverse(&self) -> Self {
[INFO] [stderr]     |            ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated items `IDENTITY`, `minor`, `cofactor`, `is_invertible`, and `inverse` are never used
[INFO] [stderr]    --> src/bin/ch3/matrix.rs:147:15
[INFO] [stderr]     |
[INFO] [stderr] 146 | impl Matrix<2> {
[INFO] [stderr]     | -------------- associated items in this implementation
[INFO] [stderr] 147 |     pub const IDENTITY: Matrix<2> = Matrix {
[INFO] [stderr]     |               ^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 150 |     pub fn minor(&self, row: usize, col: usize) -> f64 {
[INFO] [stderr]     |            ^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 153 |     pub fn cofactor(&self, row: usize, col: usize) -> f64 {
[INFO] [stderr]     |            ^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 159 |     pub fn is_invertible(&self) -> bool {
[INFO] [stderr]     |            ^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 162 |     pub fn inverse(&self) -> Self {
[INFO] [stderr]     |            ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: methods `dot`, `cross`, `magnitude`, and `normalize` are never used
[INFO] [stderr]   --> src/bin/ch3/tuple/mod.rs:16:8
[INFO] [stderr]    |
[INFO] [stderr] 10 | pub trait Tuple: Add + Sub + Neg + Mul<f64> + Div<f64> + Sized {
[INFO] [stderr]    |           ----- methods in this trait
[INFO] [stderr] ...
[INFO] [stderr] 16 |     fn dot(&self, other: Self) -> f64 {
[INFO] [stderr]    |        ^^^
[INFO] [stderr] ...
[INFO] [stderr] 20 |     fn cross(&self, other: Self) -> Self {
[INFO] [stderr]    |        ^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 28 |     fn magnitude(&self) -> f64 {
[INFO] [stderr]    |        ^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 32 |     fn normalize(&self) -> Self {
[INFO] [stderr]    |        ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: the feature `generic_const_exprs` is incomplete and may not be safe to use and/or cause compiler crashes
[INFO] [stderr]  --> src/bin/ch9/main.rs:1:12
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(generic_const_exprs)]
[INFO] [stderr]   |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: see issue #76560 <https://github.com/rust-lang/rust/issues/76560> for more information
[INFO] [stderr]   = note: `#[warn(incomplete_features)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::world::World`
[INFO] [stderr]  --> src/bin/ch9/ray.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use crate::world::World;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `float_cmp::approx_eq`
[INFO] [stderr]  --> src/bin/ch9/shapes/plane.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use float_cmp::approx_eq;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `borrow::BorrowMut`
[INFO] [stderr]   --> src/bin/ch9/shapes/plane.rs:63:15
[INFO] [stderr]    |
[INFO] [stderr] 63 |     use std::{borrow::BorrowMut, cell::RefCell};
[INFO] [stderr]    |               ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `cell::RefCell` and `rc::Rc`
[INFO] [stderr]  --> src/bin/ch9/shapes/sphere.rs:1:11
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::{cell::RefCell, rc::Rc};
[INFO] [stderr]   |           ^^^^^^^^^^^^^  ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Intersection`
[INFO] [stderr]  --> src/bin/ch9/shapes/sphere.rs:6:11
[INFO] [stderr]   |
[INFO] [stderr] 6 |     ray::{Intersection, Ray},
[INFO] [stderr]   |           ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `cell::RefCell` and `rc::Rc`
[INFO] [stderr]  --> src/bin/ch9/shapes/mod.rs:3:11
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::{cell::RefCell, fmt::Debug, rc::Rc};
[INFO] [stderr]   |           ^^^^^^^^^^^^^              ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Intersection`
[INFO] [stderr]   --> src/bin/ch9/shapes/mod.rs:11:11
[INFO] [stderr]    |
[INFO] [stderr] 11 |     ray::{Intersection, Ray},
[INFO] [stderr]    |           ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `any::type_name`
[INFO] [stderr]   --> src/bin/ch9/shapes/mod.rs:42:9
[INFO] [stderr]    |
[INFO] [stderr] 42 |         any::type_name,
[INFO] [stderr]    |         ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `path::is_separator`
[INFO] [stderr]  --> src/bin/ch9/world.rs:1:26
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::{cell::RefCell, path::is_separator, rc::Rc};
[INFO] [stderr]   |                          ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `cell::RefMut`
[INFO] [stderr]    --> src/bin/ch9/world.rs:163:34
[INFO] [stderr]     |
[INFO] [stderr] 163 |     use std::{borrow::BorrowMut, cell::RefMut};
[INFO] [stderr]     |                                  ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `FRAC_PI_6`
[INFO] [stderr]   --> src/bin/ch9/main.rs:20:52
[INFO] [stderr]    |
[INFO] [stderr] 20 |     f64::consts::{FRAC_PI_2, FRAC_PI_3, FRAC_PI_4, FRAC_PI_6},
[INFO] [stderr]    |                                                    ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `borrow::BorrowMut`
[INFO] [stderr]    --> src/bin/ch9/world.rs:163:15
[INFO] [stderr]     |
[INFO] [stderr] 163 |     use std::{borrow::BorrowMut, cell::RefMut};
[INFO] [stderr]     |               ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `p`
[INFO] [stderr]   --> src/bin/ch9/shapes/plane.rs:48:31
[INFO] [stderr]    |
[INFO] [stderr] 48 |     fn local_normal_at(&self, p: &crate::tuple::Point) -> crate::tuple::Vector {
[INFO] [stderr]    |                               ^ help: if this is intentional, prefix it with an underscore: `_p`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated items `IDENTITY`, `is_invertible`, and `inverse` are never used
[INFO] [stderr]    --> src/bin/ch9/matrix.rs:98:15
[INFO] [stderr]     |
[INFO] [stderr] 97  | impl Matrix<3> {
[INFO] [stderr]     | -------------- associated items in this implementation
[INFO] [stderr] 98  |     pub const IDENTITY: Matrix<3> = Matrix {
[INFO] [stderr]     |               ^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 137 |     pub fn is_invertible(&self) -> bool {
[INFO] [stderr]     |            ^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 140 |     pub fn inverse(&self) -> Self {
[INFO] [stderr]     |            ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated items `IDENTITY`, `minor`, `cofactor`, `is_invertible`, and `inverse` are never used
[INFO] [stderr]    --> src/bin/ch9/matrix.rs:155:15
[INFO] [stderr]     |
[INFO] [stderr] 154 | impl Matrix<2> {
[INFO] [stderr]     | -------------- associated items in this implementation
[INFO] [stderr] 155 |     pub const IDENTITY: Matrix<2> = Matrix {
[INFO] [stderr]     |               ^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 158 |     pub fn minor(&self, row: usize, col: usize) -> f64 {
[INFO] [stderr]     |            ^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 161 |     pub fn cofactor(&self, row: usize, col: usize) -> f64 {
[INFO] [stderr]     |            ^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 167 |     pub fn is_invertible(&self) -> bool {
[INFO] [stderr]     |            ^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 170 |     pub fn inverse(&self) -> Self {
[INFO] [stderr]     |            ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable `A` should have a snake case name
[INFO] [stderr]    --> src/bin/ch9/transformations.rs:173:13
[INFO] [stderr]     |
[INFO] [stderr] 173 |         let A = Matrix::<4>::IDENTITY.rotation_x(FRAC_PI_2);
[INFO] [stderr]     |             ^ help: convert the identifier to snake case: `a`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable `B` should have a snake case name
[INFO] [stderr]    --> src/bin/ch9/transformations.rs:174:13
[INFO] [stderr]     |
[INFO] [stderr] 174 |         let B = Matrix::<4>::IDENTITY.scaling(5.0, 5.0, 5.0);
[INFO] [stderr]     |             ^ help: convert the identifier to snake case: `b`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `C` should have a snake case name
[INFO] [stderr]    --> src/bin/ch9/transformations.rs:175:13
[INFO] [stderr]     |
[INFO] [stderr] 175 |         let C = Matrix::<4>::IDENTITY.translation(10.0, 5.0, 7.0);
[INFO] [stderr]     |             ^ help: convert the identifier to snake case (notice the capitalization): `c`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `T` should have a snake case name
[INFO] [stderr]    --> src/bin/ch9/transformations.rs:190:13
[INFO] [stderr]     |
[INFO] [stderr] 190 |         let T = Matrix::<4>::IDENTITY
[INFO] [stderr]     |             ^ help: convert the identifier to snake case: `t`
[INFO] [stderr] 
[INFO] [stderr] warning: the feature `generic_const_exprs` is incomplete and may not be safe to use and/or cause compiler crashes
[INFO] [stderr]  --> src/bin/ch4/main.rs:1:12
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(generic_const_exprs)]
[INFO] [stderr]   |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: see issue #76560 <https://github.com/rust-lang/rust/issues/76560> for more information
[INFO] [stderr]   = note: `#[warn(incomplete_features)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated items `IDENTITY`, `is_invertible`, and `inverse` are never used
[INFO] [stderr]    --> src/bin/ch4/matrix.rs:92:15
[INFO] [stderr]     |
[INFO] [stderr] 91  | impl Matrix<3> {
[INFO] [stderr]     | -------------- associated items in this implementation
[INFO] [stderr] 92  |     pub const IDENTITY: Matrix<3> = Matrix {
[INFO] [stderr]     |               ^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 131 |     pub fn is_invertible(&self) -> bool {
[INFO] [stderr]     |            ^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 134 |     pub fn inverse(&self) -> Self {
[INFO] [stderr]     |            ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated items `IDENTITY`, `minor`, `cofactor`, `is_invertible`, and `inverse` are never used
[INFO] [stderr]    --> src/bin/ch4/matrix.rs:149:15
[INFO] [stderr]     |
[INFO] [stderr] 148 | impl Matrix<2> {
[INFO] [stderr]     | -------------- associated items in this implementation
[INFO] [stderr] 149 |     pub const IDENTITY: Matrix<2> = Matrix {
[INFO] [stderr]     |               ^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 152 |     pub fn minor(&self, row: usize, col: usize) -> f64 {
[INFO] [stderr]     |            ^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 155 |     pub fn cofactor(&self, row: usize, col: usize) -> f64 {
[INFO] [stderr]     |            ^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 161 |     pub fn is_invertible(&self) -> bool {
[INFO] [stderr]     |            ^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 164 |     pub fn inverse(&self) -> Self {
[INFO] [stderr]     |            ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: methods `dot`, `cross`, `magnitude`, and `normalize` are never used
[INFO] [stderr]   --> src/bin/ch4/tuple/mod.rs:16:8
[INFO] [stderr]    |
[INFO] [stderr] 10 | pub trait Tuple: Add + Sub + Neg + Mul<f64> + Div<f64> + Sized {
[INFO] [stderr]    |           ----- methods in this trait
[INFO] [stderr] ...
[INFO] [stderr] 16 |     fn dot(&self, other: Self) -> f64 {
[INFO] [stderr]    |        ^^^
[INFO] [stderr] ...
[INFO] [stderr] 20 |     fn cross(&self, other: Self) -> Self {
[INFO] [stderr]    |        ^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 28 |     fn magnitude(&self) -> f64 {
[INFO] [stderr]    |        ^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 32 |     fn normalize(&self) -> Self {
[INFO] [stderr]    |        ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable `A` should have a snake case name
[INFO] [stderr]    --> src/bin/ch4/transformations.rs:154:13
[INFO] [stderr]     |
[INFO] [stderr] 154 |         let A = Matrix::<4>::IDENTITY.rotation_x(FRAC_PI_2);
[INFO] [stderr]     |             ^ help: convert the identifier to snake case: `a`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable `B` should have a snake case name
[INFO] [stderr]    --> src/bin/ch4/transformations.rs:155:13
[INFO] [stderr]     |
[INFO] [stderr] 155 |         let B = Matrix::<4>::IDENTITY.scaling(5.0, 5.0, 5.0);
[INFO] [stderr]     |             ^ help: convert the identifier to snake case: `b`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `C` should have a snake case name
[INFO] [stderr]    --> src/bin/ch4/transformations.rs:156:13
[INFO] [stderr]     |
[INFO] [stderr] 156 |         let C = Matrix::<4>::IDENTITY.translation(10.0, 5.0, 7.0);
[INFO] [stderr]     |             ^ help: convert the identifier to snake case (notice the capitalization): `c`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `T` should have a snake case name
[INFO] [stderr]    --> src/bin/ch4/transformations.rs:171:13
[INFO] [stderr]     |
[INFO] [stderr] 171 |         let T = Matrix::<4>::IDENTITY
[INFO] [stderr]     |             ^ help: convert the identifier to snake case: `t`
[INFO] [stderr] 
[INFO] [stderr] warning: the feature `generic_const_exprs` is incomplete and may not be safe to use and/or cause compiler crashes
[INFO] [stderr]  --> src/bin/ch10/main.rs:1:12
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(generic_const_exprs)]
[INFO] [stderr]   |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: see issue #76560 <https://github.com/rust-lang/rust/issues/76560> for more information
[INFO] [stderr]   = note: `#[warn(incomplete_features)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `pattern::Stripe`
[INFO] [stderr]  --> src/bin/ch10/materials.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 |     pattern::Stripe,
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `shape::Shape`
[INFO] [stderr]  --> src/bin/ch10/pattern/stripe.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 |     shape::Shape,
[INFO] [stderr]   |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `cell::RefCell` and `rc::Rc`
[INFO] [stderr]  --> src/bin/ch10/pattern/mod.rs:5:11
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::{cell::RefCell, fmt::Debug, rc::Rc};
[INFO] [stderr]   |           ^^^^^^^^^^^^^              ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::world::World`
[INFO] [stderr]  --> src/bin/ch10/ray.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use crate::world::World;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `float_cmp::approx_eq`
[INFO] [stderr]  --> src/bin/ch10/shape/plane.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use float_cmp::approx_eq;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `cell::RefCell` and `rc::Rc`
[INFO] [stderr]  --> src/bin/ch10/shape/sphere.rs:1:11
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::{cell::RefCell, rc::Rc};
[INFO] [stderr]   |           ^^^^^^^^^^^^^  ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Intersection`
[INFO] [stderr]  --> src/bin/ch10/shape/sphere.rs:7:11
[INFO] [stderr]   |
[INFO] [stderr] 7 |     ray::{Intersection, Ray},
[INFO] [stderr]   |           ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `cell::RefCell` and `rc::Rc`
[INFO] [stderr]  --> src/bin/ch10/shape/mod.rs:3:11
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::{cell::RefCell, fmt::Debug, rc::Rc};
[INFO] [stderr]   |           ^^^^^^^^^^^^^              ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Intersection`
[INFO] [stderr]   --> src/bin/ch10/shape/mod.rs:12:11
[INFO] [stderr]    |
[INFO] [stderr] 12 |     ray::{Intersection, Ray},
[INFO] [stderr]    |           ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `any::type_name`
[INFO] [stderr]   --> src/bin/ch10/shape/mod.rs:45:9
[INFO] [stderr]    |
[INFO] [stderr] 45 |         any::type_name,
[INFO] [stderr]    |         ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::cell::RefMut`
[INFO] [stderr]    --> src/bin/ch10/world.rs:164:9
[INFO] [stderr]     |
[INFO] [stderr] 164 |     use std::cell::RefMut;
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `FRAC_PI_6`
[INFO] [stderr]   --> src/bin/ch10/main.rs:21:52
[INFO] [stderr]    |
[INFO] [stderr] 21 |     f64::consts::{FRAC_PI_2, FRAC_PI_3, FRAC_PI_4, FRAC_PI_6},
[INFO] [stderr]    |                                                    ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/bin/ch10/pattern/mod.rs:20:40
[INFO] [stderr]    |
[INFO] [stderr] 20 |     fn pattern_at_shape(&self, shape: &Shape, point: &Point) -> Color {
[INFO] [stderr]    |                                        ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 20 |     fn pattern_at_shape(&self, shape: &dyn Shape, point: &Point) -> Color {
[INFO] [stderr]    |                                        +++
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `pattern::Pattern`
[INFO] [stderr]   --> src/bin/ch10/shape/mod.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 |     pattern::Pattern,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `pattern::Pattern`
[INFO] [stderr]  --> src/bin/ch10/shape/sphere.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 |     pattern::Pattern,
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `pattern::Pattern`
[INFO] [stderr]   --> src/bin/ch10/ray.rs:10:13
[INFO] [stderr]    |
[INFO] [stderr] 10 | use crate::{pattern::Pattern, shape::Shape};
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `pattern::Pattern`
[INFO] [stderr]  --> src/bin/ch10/shape/plane.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 |     pattern::Pattern,
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `transform`
[INFO] [stderr]   --> src/bin/ch10/pattern/checkerboard.rs:39:33
[INFO] [stderr]    |
[INFO] [stderr] 39 |     fn set_transform(&mut self, transform: Matrix<4>) {
[INFO] [stderr]    |                                 ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_transform`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `transform`
[INFO] [stderr]   --> src/bin/ch10/pattern/gradient.rs:34:33
[INFO] [stderr]    |
[INFO] [stderr] 34 |     fn set_transform(&mut self, transform: Matrix<4>) {
[INFO] [stderr]    |                                 ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_transform`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `transform`
[INFO] [stderr]   --> src/bin/ch10/pattern/ring.rs:29:33
[INFO] [stderr]    |
[INFO] [stderr] 29 |     fn set_transform(&mut self, transform: Matrix<4>) {
[INFO] [stderr]    |                                 ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_transform`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `p`
[INFO] [stderr]   --> src/bin/ch10/shape/plane.rs:49:31
[INFO] [stderr]    |
[INFO] [stderr] 49 |     fn local_normal_at(&self, p: &crate::tuple::Point) -> crate::tuple::Vector {
[INFO] [stderr]    |                               ^ help: if this is intentional, prefix it with an underscore: `_p`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/bin/ch10/main.rs:87:9
[INFO] [stderr]    |
[INFO] [stderr] 87 |     let mut pattern = Checkerboard::new(Color::WHITE, Color::BLACK);
[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: associated items `IDENTITY`, `is_invertible`, and `inverse` are never used
[INFO] [stderr]    --> src/bin/ch10/matrix.rs:98:15
[INFO] [stderr]     |
[INFO] [stderr] 97  | impl Matrix<3> {
[INFO] [stderr]     | -------------- associated items in this implementation
[INFO] [stderr] 98  |     pub const IDENTITY: Matrix<3> = Matrix {
[INFO] [stderr]     |               ^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 137 |     pub fn is_invertible(&self) -> bool {
[INFO] [stderr]     |            ^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 140 |     pub fn inverse(&self) -> Self {
[INFO] [stderr]     |            ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated items `IDENTITY`, `minor`, `cofactor`, `is_invertible`, and `inverse` are never used
[INFO] [stderr]    --> src/bin/ch10/matrix.rs:155:15
[INFO] [stderr]     |
[INFO] [stderr] 154 | impl Matrix<2> {
[INFO] [stderr]     | -------------- associated items in this implementation
[INFO] [stderr] 155 |     pub const IDENTITY: Matrix<2> = Matrix {
[INFO] [stderr]     |               ^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 158 |     pub fn minor(&self, row: usize, col: usize) -> f64 {
[INFO] [stderr]     |            ^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 161 |     pub fn cofactor(&self, row: usize, col: usize) -> f64 {
[INFO] [stderr]     |            ^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 167 |     pub fn is_invertible(&self) -> bool {
[INFO] [stderr]     |            ^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 170 |     pub fn inverse(&self) -> Self {
[INFO] [stderr]     |            ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method `set_material` is never used
[INFO] [stderr]   --> src/bin/ch10/shape/mod.rs:21:8
[INFO] [stderr]    |
[INFO] [stderr] 16 | pub trait Shape: Debug {
[INFO] [stderr]    |           ----- method in this trait
[INFO] [stderr] ...
[INFO] [stderr] 21 |     fn set_material(&mut self, material: Material);
[INFO] [stderr]    |        ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable `A` should have a snake case name
[INFO] [stderr]    --> src/bin/ch10/transformations.rs:173:13
[INFO] [stderr]     |
[INFO] [stderr] 173 |         let A = Matrix::<4>::IDENTITY.rotation_x(FRAC_PI_2);
[INFO] [stderr]     |             ^ help: convert the identifier to snake case: `a`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable `B` should have a snake case name
[INFO] [stderr]    --> src/bin/ch10/transformations.rs:174:13
[INFO] [stderr]     |
[INFO] [stderr] 174 |         let B = Matrix::<4>::IDENTITY.scaling(5.0, 5.0, 5.0);
[INFO] [stderr]     |             ^ help: convert the identifier to snake case: `b`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `C` should have a snake case name
[INFO] [stderr]    --> src/bin/ch10/transformations.rs:175:13
[INFO] [stderr]     |
[INFO] [stderr] 175 |         let C = Matrix::<4>::IDENTITY.translation(10.0, 5.0, 7.0);
[INFO] [stderr]     |             ^ help: convert the identifier to snake case (notice the capitalization): `c`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `T` should have a snake case name
[INFO] [stderr]    --> src/bin/ch10/transformations.rs:190:13
[INFO] [stderr]     |
[INFO] [stderr] 190 |         let T = Matrix::<4>::IDENTITY
[INFO] [stderr]     |             ^ help: convert the identifier to snake case: `t`
[INFO] [stderr] 
[INFO] [stderr] warning: the feature `generic_const_exprs` is incomplete and may not be safe to use and/or cause compiler crashes
[INFO] [stderr]  --> src/bin/ch5/main.rs:1:12
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(generic_const_exprs)]
[INFO] [stderr]   |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: see issue #76560 <https://github.com/rust-lang/rust/issues/76560> for more information
[INFO] [stderr]   = note: `#[warn(incomplete_features)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated items `IDENTITY`, `is_invertible`, and `inverse` are never used
[INFO] [stderr]    --> src/bin/ch5/matrix.rs:92:15
[INFO] [stderr]     |
[INFO] [stderr] 91  | impl Matrix<3> {
[INFO] [stderr]     | -------------- associated items in this implementation
[INFO] [stderr] 92  |     pub const IDENTITY: Matrix<3> = Matrix {
[INFO] [stderr]     |               ^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 131 |     pub fn is_invertible(&self) -> bool {
[INFO] [stderr]     |            ^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 134 |     pub fn inverse(&self) -> Self {
[INFO] [stderr]     |            ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated items `IDENTITY`, `minor`, `cofactor`, `is_invertible`, and `inverse` are never used
[INFO] [stderr]    --> src/bin/ch5/matrix.rs:149:15
[INFO] [stderr]     |
[INFO] [stderr] 148 | impl Matrix<2> {
[INFO] [stderr]     | -------------- associated items in this implementation
[INFO] [stderr] 149 |     pub const IDENTITY: Matrix<2> = Matrix {
[INFO] [stderr]     |               ^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 152 |     pub fn minor(&self, row: usize, col: usize) -> f64 {
[INFO] [stderr]     |            ^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 155 |     pub fn cofactor(&self, row: usize, col: usize) -> f64 {
[INFO] [stderr]     |            ^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 161 |     pub fn is_invertible(&self) -> bool {
[INFO] [stderr]     |            ^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 164 |     pub fn inverse(&self) -> Self {
[INFO] [stderr]     |            ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method `cross` is never used
[INFO] [stderr]   --> src/bin/ch5/tuple/mod.rs:20:8
[INFO] [stderr]    |
[INFO] [stderr] 10 | pub trait Tuple: Add + Sub + Neg + Mul<f64> + Div<f64> + Sized {
[INFO] [stderr]    |           ----- method in this trait
[INFO] [stderr] ...
[INFO] [stderr] 20 |     fn cross(&self, other: Self) -> Self {
[INFO] [stderr]    |        ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable `A` should have a snake case name
[INFO] [stderr]    --> src/bin/ch5/transformations.rs:154:13
[INFO] [stderr]     |
[INFO] [stderr] 154 |         let A = Matrix::<4>::IDENTITY.rotation_x(FRAC_PI_2);
[INFO] [stderr]     |             ^ help: convert the identifier to snake case: `a`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable `B` should have a snake case name
[INFO] [stderr]    --> src/bin/ch5/transformations.rs:155:13
[INFO] [stderr]     |
[INFO] [stderr] 155 |         let B = Matrix::<4>::IDENTITY.scaling(5.0, 5.0, 5.0);
[INFO] [stderr]     |             ^ help: convert the identifier to snake case: `b`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `C` should have a snake case name
[INFO] [stderr]    --> src/bin/ch5/transformations.rs:156:13
[INFO] [stderr]     |
[INFO] [stderr] 156 |         let C = Matrix::<4>::IDENTITY.translation(10.0, 5.0, 7.0);
[INFO] [stderr]     |             ^ help: convert the identifier to snake case (notice the capitalization): `c`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `T` should have a snake case name
[INFO] [stderr]    --> src/bin/ch5/transformations.rs:171:13
[INFO] [stderr]     |
[INFO] [stderr] 171 |         let T = Matrix::<4>::IDENTITY
[INFO] [stderr]     |             ^ help: convert the identifier to snake case: `t`
[INFO] [stderr] 
[INFO] [stderr] warning: the feature `generic_const_exprs` is incomplete and may not be safe to use and/or cause compiler crashes
[INFO] [stderr]  --> src/bin/ch8/main.rs:1:12
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(generic_const_exprs)]
[INFO] [stderr]   |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: see issue #76560 <https://github.com/rust-lang/rust/issues/76560> for more information
[INFO] [stderr]   = note: `#[warn(incomplete_features)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `path::is_separator`
[INFO] [stderr]  --> src/bin/ch8/world.rs:1:26
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::{cell::RefCell, path::is_separator, rc::Rc};
[INFO] [stderr]   |                          ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `FRAC_PI_3`
[INFO] [stderr]   --> src/bin/ch8/main.rs:20:30
[INFO] [stderr]    |
[INFO] [stderr] 20 |     f64::consts::{FRAC_PI_2, FRAC_PI_3, FRAC_PI_4},
[INFO] [stderr]    |                              ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated items `IDENTITY`, `is_invertible`, and `inverse` are never used
[INFO] [stderr]    --> src/bin/ch8/matrix.rs:92:15
[INFO] [stderr]     |
[INFO] [stderr] 91  | impl Matrix<3> {
[INFO] [stderr]     | -------------- associated items in this implementation
[INFO] [stderr] 92  |     pub const IDENTITY: Matrix<3> = Matrix {
[INFO] [stderr]     |               ^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 131 |     pub fn is_invertible(&self) -> bool {
[INFO] [stderr]     |            ^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 134 |     pub fn inverse(&self) -> Self {
[INFO] [stderr]     |            ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated items `IDENTITY`, `minor`, `cofactor`, `is_invertible`, and `inverse` are never used
[INFO] [stderr]    --> src/bin/ch8/matrix.rs:149:15
[INFO] [stderr]     |
[INFO] [stderr] 148 | impl Matrix<2> {
[INFO] [stderr]     | -------------- associated items in this implementation
[INFO] [stderr] 149 |     pub const IDENTITY: Matrix<2> = Matrix {
[INFO] [stderr]     |               ^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 152 |     pub fn minor(&self, row: usize, col: usize) -> f64 {
[INFO] [stderr]     |            ^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 155 |     pub fn cofactor(&self, row: usize, col: usize) -> f64 {
[INFO] [stderr]     |            ^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 161 |     pub fn is_invertible(&self) -> bool {
[INFO] [stderr]     |            ^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 164 |     pub fn inverse(&self) -> Self {
[INFO] [stderr]     |            ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable `A` should have a snake case name
[INFO] [stderr]    --> src/bin/ch8/transformations.rs:173:13
[INFO] [stderr]     |
[INFO] [stderr] 173 |         let A = Matrix::<4>::IDENTITY.rotation_x(FRAC_PI_2);
[INFO] [stderr]     |             ^ help: convert the identifier to snake case: `a`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable `B` should have a snake case name
[INFO] [stderr]    --> src/bin/ch8/transformations.rs:174:13
[INFO] [stderr]     |
[INFO] [stderr] 174 |         let B = Matrix::<4>::IDENTITY.scaling(5.0, 5.0, 5.0);
[INFO] [stderr]     |             ^ help: convert the identifier to snake case: `b`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `C` should have a snake case name
[INFO] [stderr]    --> src/bin/ch8/transformations.rs:175:13
[INFO] [stderr]     |
[INFO] [stderr] 175 |         let C = Matrix::<4>::IDENTITY.translation(10.0, 5.0, 7.0);
[INFO] [stderr]     |             ^ help: convert the identifier to snake case (notice the capitalization): `c`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `T` should have a snake case name
[INFO] [stderr]    --> src/bin/ch8/transformations.rs:190:13
[INFO] [stderr]     |
[INFO] [stderr] 190 |         let T = Matrix::<4>::IDENTITY
[INFO] [stderr]     |             ^ help: convert the identifier to snake case: `t`
[INFO] [stderr] 
[INFO] [stderr] warning: methods `dot` and `cross` are never used
[INFO] [stderr]   --> src/bin/ch1/tuple.rs:79:12
[INFO] [stderr]    |
[INFO] [stderr] 65 | impl Vector {
[INFO] [stderr]    | ----------- methods in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 79 |     pub fn dot(&self, other: Self) -> f64 {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] ...
[INFO] [stderr] 83 |     pub fn cross(&self, other: Self) -> Self {
[INFO] [stderr]    |            ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: the feature `generic_const_exprs` is incomplete and may not be safe to use and/or cause compiler crashes
[INFO] [stderr]  --> src/bin/ch12/main.rs:1:12
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(generic_const_exprs)]
[INFO] [stderr]   |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: see issue #76560 <https://github.com/rust-lang/rust/issues/76560> for more information
[INFO] [stderr]   = note: `#[warn(incomplete_features)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `pattern::Stripe`
[INFO] [stderr]  --> src/bin/ch12/materials.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 |     pattern::Stripe,
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `f64::consts::FRAC_2_PI`
[INFO] [stderr]   --> src/bin/ch12/materials.rs:90:43
[INFO] [stderr]    |
[INFO] [stderr] 90 |     use std::{f64::consts::FRAC_1_SQRT_2, f64::consts::FRAC_2_PI};
[INFO] [stderr]    |                                           ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Intersection`, `Plane`, and `Ray`
[INFO] [stderr]   --> src/bin/ch12/materials.rs:94:15
[INFO] [stderr]    |
[INFO] [stderr] 94 |         ray::{Intersection, Ray},
[INFO] [stderr]    |               ^^^^^^^^^^^^  ^^^
[INFO] [stderr] 95 |         shape::{Plane, Sphere},
[INFO] [stderr]    |                 ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `shape::Shape`
[INFO] [stderr]  --> src/bin/ch12/pattern/stripe.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 |     shape::Shape,
[INFO] [stderr]   |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `cell::RefCell` and `rc::Rc`
[INFO] [stderr]  --> src/bin/ch12/pattern/mod.rs:5:11
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::{cell::RefCell, fmt::Debug, rc::Rc};
[INFO] [stderr]   |           ^^^^^^^^^^^^^              ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `World`
[INFO] [stderr]  --> src/bin/ch12/ray.rs:5:34
[INFO] [stderr]   |
[INFO] [stderr] 5 | use crate::world::{Computations, World};
[INFO] [stderr]   |                                  ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `DEFAULT_REFLECTION_COUNT` and `tuple::Color`
[INFO] [stderr]   --> src/bin/ch12/ray.rs:94:73
[INFO] [stderr]    |
[INFO] [stderr] 94 |         matrix::Matrix, shape::Sphere, transformations::Transformation, tuple::Color,
[INFO] [stderr]    |                                                                         ^^^^^^^^^^^^
[INFO] [stderr] 95 |         world::prepare_computations, DEFAULT_REFLECTION_COUNT,
[INFO] [stderr]    |                                      ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Point`
[INFO] [stderr]  --> src/bin/ch12/shape/cube.rs:6:13
[INFO] [stderr]   |
[INFO] [stderr] 6 |     tuple::{Point, Tuple, Vector},
[INFO] [stderr]   |             ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `float_cmp::approx_eq`
[INFO] [stderr]  --> src/bin/ch12/shape/plane.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use float_cmp::approx_eq;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `cell::RefCell` and `rc::Rc`
[INFO] [stderr]  --> src/bin/ch12/shape/sphere.rs:1:11
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::{cell::RefCell, rc::Rc};
[INFO] [stderr]   |           ^^^^^^^^^^^^^  ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Intersection`
[INFO] [stderr]  --> src/bin/ch12/shape/sphere.rs:7:11
[INFO] [stderr]   |
[INFO] [stderr] 7 |     ray::{Intersection, Ray},
[INFO] [stderr]   |           ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `cell::RefCell` and `rc::Rc`
[INFO] [stderr]  --> src/bin/ch12/shape/mod.rs:4:11
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::{cell::RefCell, fmt::Debug, rc::Rc};
[INFO] [stderr]   |           ^^^^^^^^^^^^^              ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Intersection`
[INFO] [stderr]   --> src/bin/ch12/shape/mod.rs:14:11
[INFO] [stderr]    |
[INFO] [stderr] 14 |     ray::{Intersection, Ray},
[INFO] [stderr]    |           ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `any::type_name`
[INFO] [stderr]   --> src/bin/ch12/shape/mod.rs:59:9
[INFO] [stderr]    |
[INFO] [stderr] 59 |         any::type_name,
[INFO] [stderr]    |         ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `cell::RefMut`
[INFO] [stderr]    --> src/bin/ch12/world.rs:276:9
[INFO] [stderr]     |
[INFO] [stderr] 276 |         cell::RefMut,
[INFO] [stderr]     |         ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `materials::Material`
[INFO] [stderr]   --> src/bin/ch12/main.rs:17:5
[INFO] [stderr]    |
[INFO] [stderr] 17 | use materials::Material;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `FRAC_PI_3`, `FRAC_PI_4`, and `FRAC_PI_6`
[INFO] [stderr]   --> src/bin/ch12/main.rs:24:30
[INFO] [stderr]    |
[INFO] [stderr] 24 |     f64::consts::{FRAC_PI_2, FRAC_PI_3, FRAC_PI_4, FRAC_PI_6},
[INFO] [stderr]    |                              ^^^^^^^^^  ^^^^^^^^^  ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Gradient`, `Ring`, and `lights::PointLight`
[INFO] [stderr]   --> src/bin/ch12/main.rs:33:5
[INFO] [stderr]    |
[INFO] [stderr] 33 |     lights::PointLight,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 34 |     pattern::{Checkerboard, Gradient, Pattern, Ring, Stripe},
[INFO] [stderr]    |                             ^^^^^^^^           ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/bin/ch12/pattern/mod.rs:20:40
[INFO] [stderr]    |
[INFO] [stderr] 20 |     fn pattern_at_shape(&self, shape: &Shape, point: &Point) -> Color {
[INFO] [stderr]    |                                        ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 20 |     fn pattern_at_shape(&self, shape: &dyn Shape, point: &Point) -> Color {
[INFO] [stderr]    |                                        +++
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `pattern::Pattern`
[INFO] [stderr]   --> src/bin/ch12/shape/mod.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 |     pattern::Pattern,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `pattern::Pattern`
[INFO] [stderr]  --> src/bin/ch12/shape/sphere.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 |     pattern::Pattern,
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `pattern::Pattern`
[INFO] [stderr]   --> src/bin/ch12/ray.rs:10:13
[INFO] [stderr]    |
[INFO] [stderr] 10 | use crate::{pattern::Pattern, shape::Shape};
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `pattern::Pattern`
[INFO] [stderr]  --> src/bin/ch12/shape/plane.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 |     pattern::Pattern,
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `transform`
[INFO] [stderr]   --> src/bin/ch12/pattern/checkerboard.rs:39:33
[INFO] [stderr]    |
[INFO] [stderr] 39 |     fn set_transform(&mut self, transform: Matrix<4>) {
[INFO] [stderr]    |                                 ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_transform`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `transform`
[INFO] [stderr]   --> src/bin/ch12/pattern/gradient.rs:34:33
[INFO] [stderr]    |
[INFO] [stderr] 34 |     fn set_transform(&mut self, transform: Matrix<4>) {
[INFO] [stderr]    |                                 ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_transform`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `transform`
[INFO] [stderr]   --> src/bin/ch12/pattern/ring.rs:29:33
[INFO] [stderr]    |
[INFO] [stderr] 29 |     fn set_transform(&mut self, transform: Matrix<4>) {
[INFO] [stderr]    |                                 ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_transform`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `transform`
[INFO] [stderr]   --> src/bin/ch12/shape/cube.rs:58:33
[INFO] [stderr]    |
[INFO] [stderr] 58 |     fn set_transform(&mut self, transform: crate::matrix::Matrix<4>) {
[INFO] [stderr]    |                                 ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_transform`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `material`
[INFO] [stderr]   --> src/bin/ch12/shape/cube.rs:66:32
[INFO] [stderr]    |
[INFO] [stderr] 66 |     fn set_material(&mut self, material: crate::materials::Material) {
[INFO] [stderr]    |                                ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_material`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `p`
[INFO] [stderr]   --> src/bin/ch12/shape/plane.rs:49:31
[INFO] [stderr]    |
[INFO] [stderr] 49 |     fn local_normal_at(&self, p: &crate::tuple::Point) -> crate::tuple::Vector {
[INFO] [stderr]    |                               ^ help: if this is intentional, prefix it with an underscore: `_p`
[INFO] [stderr] 
[INFO] [stderr] warning: function `float_cmp` is never used
[INFO] [stderr]    --> src/bin/ch12/main.rs:144:4
[INFO] [stderr]     |
[INFO] [stderr] 144 | fn float_cmp(first: &f64, second: &f64) -> std::cmp::Ordering {
[INFO] [stderr]     |    ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated items `IDENTITY`, `is_invertible`, and `inverse` are never used
[INFO] [stderr]    --> src/bin/ch12/matrix.rs:98:15
[INFO] [stderr]     |
[INFO] [stderr] 97  | impl Matrix<3> {
[INFO] [stderr]     | -------------- associated items in this implementation
[INFO] [stderr] 98  |     pub const IDENTITY: Matrix<3> = Matrix {
[INFO] [stderr]     |               ^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 137 |     pub fn is_invertible(&self) -> bool {
[INFO] [stderr]     |            ^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 140 |     pub fn inverse(&self) -> Self {
[INFO] [stderr]     |            ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated items `IDENTITY`, `minor`, `cofactor`, `is_invertible`, and `inverse` are never used
[INFO] [stderr]    --> src/bin/ch12/matrix.rs:155:15
[INFO] [stderr]     |
[INFO] [stderr] 154 | impl Matrix<2> {
[INFO] [stderr]     | -------------- associated items in this implementation
[INFO] [stderr] 155 |     pub const IDENTITY: Matrix<2> = Matrix {
[INFO] [stderr]     |               ^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 158 |     pub fn minor(&self, row: usize, col: usize) -> f64 {
[INFO] [stderr]     |            ^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 161 |     pub fn cofactor(&self, row: usize, col: usize) -> f64 {
[INFO] [stderr]     |            ^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 167 |     pub fn is_invertible(&self) -> bool {
[INFO] [stderr]     |            ^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 170 |     pub fn inverse(&self) -> Self {
[INFO] [stderr]     |            ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method `set_material` is never used
[INFO] [stderr]   --> src/bin/ch12/shape/mod.rs:23:8
[INFO] [stderr]    |
[INFO] [stderr] 18 | pub trait Shape: Debug {
[INFO] [stderr]    |           ----- method in this trait
[INFO] [stderr] ...
[INFO] [stderr] 23 |     fn set_material(&mut self, material: Material);
[INFO] [stderr]    |        ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method `magnitude` is never used
[INFO] [stderr]   --> src/bin/ch12/tuple/color.rs:26:12
[INFO] [stderr]    |
[INFO] [stderr] 11 | impl Color {
[INFO] [stderr]    | ---------- method in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 26 |     pub fn magnitude(&self) -> f64 {
[INFO] [stderr]    |            ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `Schlick_approximation_under_total_internal_reflection` should have a snake case name
[INFO] [stderr]    --> src/bin/ch12/ray.rs:348:8
[INFO] [stderr]     |
[INFO] [stderr] 348 |     fn Schlick_approximation_under_total_internal_reflection() {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case (notice the capitalization): `schlick_approximation_under_total_internal_reflection`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable `A` should have a snake case name
[INFO] [stderr]    --> src/bin/ch12/transformations.rs:173:13
[INFO] [stderr]     |
[INFO] [stderr] 173 |         let A = Matrix::<4>::IDENTITY.rotation_x(FRAC_PI_2);
[INFO] [stderr]     |             ^ help: convert the identifier to snake case: `a`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `B` should have a snake case name
[INFO] [stderr]    --> src/bin/ch12/transformations.rs:174:13
[INFO] [stderr]     |
[INFO] [stderr] 174 |         let B = Matrix::<4>::IDENTITY.scaling(5.0, 5.0, 5.0);
[INFO] [stderr]     |             ^ help: convert the identifier to snake case: `b`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `C` should have a snake case name
[INFO] [stderr]    --> src/bin/ch12/transformations.rs:175:13
[INFO] [stderr]     |
[INFO] [stderr] 175 |         let C = Matrix::<4>::IDENTITY.translation(10.0, 5.0, 7.0);
[INFO] [stderr]     |             ^ help: convert the identifier to snake case (notice the capitalization): `c`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `T` should have a snake case name
[INFO] [stderr]    --> src/bin/ch12/transformations.rs:190:13
[INFO] [stderr]     |
[INFO] [stderr] 190 |         let T = Matrix::<4>::IDENTITY
[INFO] [stderr]     |             ^ help: convert the identifier to snake case: `t`
[INFO] [stderr] 
[INFO] [stderr] warning: the feature `generic_const_exprs` is incomplete and may not be safe to use and/or cause compiler crashes
[INFO] [stderr]  --> src/bin/ch11/main.rs:1:12
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(generic_const_exprs)]
[INFO] [stderr]   |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: see issue #76560 <https://github.com/rust-lang/rust/issues/76560> for more information
[INFO] [stderr]   = note: `#[warn(incomplete_features)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `pattern::Stripe`
[INFO] [stderr]  --> src/bin/ch11/materials.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 |     pattern::Stripe,
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `f64::consts::FRAC_2_PI`
[INFO] [stderr]   --> src/bin/ch11/materials.rs:90:43
[INFO] [stderr]    |
[INFO] [stderr] 90 |     use std::{f64::consts::FRAC_1_SQRT_2, f64::consts::FRAC_2_PI};
[INFO] [stderr]    |                                           ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Intersection`, `Plane`, and `Ray`
[INFO] [stderr]   --> src/bin/ch11/materials.rs:94:15
[INFO] [stderr]    |
[INFO] [stderr] 94 |         ray::{Intersection, Ray},
[INFO] [stderr]    |               ^^^^^^^^^^^^  ^^^
[INFO] [stderr] 95 |         shape::{Plane, Sphere},
[INFO] [stderr]    |                 ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `shape::Shape`
[INFO] [stderr]  --> src/bin/ch11/pattern/stripe.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 |     shape::Shape,
[INFO] [stderr]   |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `cell::RefCell` and `rc::Rc`
[INFO] [stderr]  --> src/bin/ch11/pattern/mod.rs:5:11
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::{cell::RefCell, fmt::Debug, rc::Rc};
[INFO] [stderr]   |           ^^^^^^^^^^^^^              ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `World`
[INFO] [stderr]  --> src/bin/ch11/ray.rs:5:34
[INFO] [stderr]   |
[INFO] [stderr] 5 | use crate::world::{Computations, World};
[INFO] [stderr]   |                                  ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `DEFAULT_REFLECTION_COUNT` and `tuple::Color`
[INFO] [stderr]   --> src/bin/ch11/ray.rs:94:73
[INFO] [stderr]    |
[INFO] [stderr] 94 |         matrix::Matrix, shape::Sphere, transformations::Transformation, tuple::Color,
[INFO] [stderr]    |                                                                         ^^^^^^^^^^^^
[INFO] [stderr] 95 |         world::prepare_computations, DEFAULT_REFLECTION_COUNT,
[INFO] [stderr]    |                                      ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `float_cmp::approx_eq`
[INFO] [stderr]  --> src/bin/ch11/shape/plane.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use float_cmp::approx_eq;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `cell::RefCell` and `rc::Rc`
[INFO] [stderr]  --> src/bin/ch11/shape/sphere.rs:1:11
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::{cell::RefCell, rc::Rc};
[INFO] [stderr]   |           ^^^^^^^^^^^^^  ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Intersection`
[INFO] [stderr]  --> src/bin/ch11/shape/sphere.rs:7:11
[INFO] [stderr]   |
[INFO] [stderr] 7 |     ray::{Intersection, Ray},
[INFO] [stderr]   |           ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `cell::RefCell` and `rc::Rc`
[INFO] [stderr]  --> src/bin/ch11/shape/mod.rs:3:11
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::{cell::RefCell, fmt::Debug, rc::Rc};
[INFO] [stderr]   |           ^^^^^^^^^^^^^              ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Intersection`
[INFO] [stderr]   --> src/bin/ch11/shape/mod.rs:12:11
[INFO] [stderr]    |
[INFO] [stderr] 12 |     ray::{Intersection, Ray},
[INFO] [stderr]    |           ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `any::type_name`
[INFO] [stderr]   --> src/bin/ch11/shape/mod.rs:57:9
[INFO] [stderr]    |
[INFO] [stderr] 57 |         any::type_name,
[INFO] [stderr]    |         ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `cell::RefMut`
[INFO] [stderr]    --> src/bin/ch11/world.rs:276:9
[INFO] [stderr]     |
[INFO] [stderr] 276 |         cell::RefMut,
[INFO] [stderr]     |         ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `FRAC_PI_3`, `FRAC_PI_4`, and `FRAC_PI_6`
[INFO] [stderr]   --> src/bin/ch11/main.rs:22:30
[INFO] [stderr]    |
[INFO] [stderr] 22 |     f64::consts::{FRAC_PI_2, FRAC_PI_3, FRAC_PI_4, FRAC_PI_6},
[INFO] [stderr]    |                              ^^^^^^^^^  ^^^^^^^^^  ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Gradient`, `Ring`, `Stripe`, and `lights::PointLight`
[INFO] [stderr]   --> src/bin/ch11/main.rs:31:5
[INFO] [stderr]    |
[INFO] [stderr] 31 |     lights::PointLight,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 32 |     pattern::{Checkerboard, Gradient, Pattern, Ring, Stripe},
[INFO] [stderr]    |                             ^^^^^^^^           ^^^^  ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/bin/ch11/pattern/mod.rs:20:40
[INFO] [stderr]    |
[INFO] [stderr] 20 |     fn pattern_at_shape(&self, shape: &Shape, point: &Point) -> Color {
[INFO] [stderr]    |                                        ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 20 |     fn pattern_at_shape(&self, shape: &dyn Shape, point: &Point) -> Color {
[INFO] [stderr]    |                                        +++
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Pattern`
[INFO] [stderr]   --> src/bin/ch11/main.rs:32:39
[INFO] [stderr]    |
[INFO] [stderr] 32 |     pattern::{Checkerboard, Gradient, Pattern, Ring, Stripe},
[INFO] [stderr]    |                                       ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `pattern::Pattern`
[INFO] [stderr]  --> src/bin/ch11/shape/sphere.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 |     pattern::Pattern,
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `pattern::Pattern`
[INFO] [stderr]   --> src/bin/ch11/shape/mod.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 |     pattern::Pattern,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `pattern::Pattern`
[INFO] [stderr]   --> src/bin/ch11/ray.rs:10:13
[INFO] [stderr]    |
[INFO] [stderr] 10 | use crate::{pattern::Pattern, shape::Shape};
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `pattern::Pattern`
[INFO] [stderr]  --> src/bin/ch11/shape/plane.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 |     pattern::Pattern,
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `transform`
[INFO] [stderr]   --> src/bin/ch11/pattern/checkerboard.rs:39:33
[INFO] [stderr]    |
[INFO] [stderr] 39 |     fn set_transform(&mut self, transform: Matrix<4>) {
[INFO] [stderr]    |                                 ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_transform`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `transform`
[INFO] [stderr]   --> src/bin/ch11/pattern/gradient.rs:34:33
[INFO] [stderr]    |
[INFO] [stderr] 34 |     fn set_transform(&mut self, transform: Matrix<4>) {
[INFO] [stderr]    |                                 ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_transform`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `transform`
[INFO] [stderr]   --> src/bin/ch11/pattern/ring.rs:29:33
[INFO] [stderr]    |
[INFO] [stderr] 29 |     fn set_transform(&mut self, transform: Matrix<4>) {
[INFO] [stderr]    |                                 ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_transform`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `p`
[INFO] [stderr]   --> src/bin/ch11/shape/plane.rs:49:31
[INFO] [stderr]    |
[INFO] [stderr] 49 |     fn local_normal_at(&self, p: &crate::tuple::Point) -> crate::tuple::Vector {
[INFO] [stderr]    |                               ^ help: if this is intentional, prefix it with an underscore: `_p`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/bin/ch11/main.rs:46:9
[INFO] [stderr]    |
[INFO] [stderr] 46 |     let mut pattern = Checkerboard::new(Color::WHITE, Color::BLACK);
[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: associated items `IDENTITY`, `is_invertible`, and `inverse` are never used
[INFO] [stderr]    --> src/bin/ch11/matrix.rs:98:15
[INFO] [stderr]     |
[INFO] [stderr] 97  | impl Matrix<3> {
[INFO] [stderr]     | -------------- associated items in this implementation
[INFO] [stderr] 98  |     pub const IDENTITY: Matrix<3> = Matrix {
[INFO] [stderr]     |               ^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 137 |     pub fn is_invertible(&self) -> bool {
[INFO] [stderr]     |            ^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 140 |     pub fn inverse(&self) -> Self {
[INFO] [stderr]     |            ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated items `IDENTITY`, `minor`, `cofactor`, `is_invertible`, and `inverse` are never used
[INFO] [stderr]    --> src/bin/ch11/matrix.rs:155:15
[INFO] [stderr]     |
[INFO] [stderr] 154 | impl Matrix<2> {
[INFO] [stderr]     | -------------- associated items in this implementation
[INFO] [stderr] 155 |     pub const IDENTITY: Matrix<2> = Matrix {
[INFO] [stderr]     |               ^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 158 |     pub fn minor(&self, row: usize, col: usize) -> f64 {
[INFO] [stderr]     |            ^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 161 |     pub fn cofactor(&self, row: usize, col: usize) -> f64 {
[INFO] [stderr]     |            ^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 167 |     pub fn is_invertible(&self) -> bool {
[INFO] [stderr]     |            ^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 170 |     pub fn inverse(&self) -> Self {
[INFO] [stderr]     |            ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method `set_material` is never used
[INFO] [stderr]   --> src/bin/ch11/shape/mod.rs:21:8
[INFO] [stderr]    |
[INFO] [stderr] 16 | pub trait Shape: Debug {
[INFO] [stderr]    |           ----- method in this trait
[INFO] [stderr] ...
[INFO] [stderr] 21 |     fn set_material(&mut self, material: Material);
[INFO] [stderr]    |        ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method `magnitude` is never used
[INFO] [stderr]   --> src/bin/ch11/tuple/color.rs:26:12
[INFO] [stderr]    |
[INFO] [stderr] 11 | impl Color {
[INFO] [stderr]    | ---------- method in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 26 |     pub fn magnitude(&self) -> f64 {
[INFO] [stderr]    |            ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `Schlick_approximation_under_total_internal_reflection` should have a snake case name
[INFO] [stderr]    --> src/bin/ch11/ray.rs:348:8
[INFO] [stderr]     |
[INFO] [stderr] 348 |     fn Schlick_approximation_under_total_internal_reflection() {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case (notice the capitalization): `schlick_approximation_under_total_internal_reflection`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable `A` should have a snake case name
[INFO] [stderr]    --> src/bin/ch11/transformations.rs:173:13
[INFO] [stderr]     |
[INFO] [stderr] 173 |         let A = Matrix::<4>::IDENTITY.rotation_x(FRAC_PI_2);
[INFO] [stderr]     |             ^ help: convert the identifier to snake case: `a`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `B` should have a snake case name
[INFO] [stderr]    --> src/bin/ch11/transformations.rs:174:13
[INFO] [stderr]     |
[INFO] [stderr] 174 |         let B = Matrix::<4>::IDENTITY.scaling(5.0, 5.0, 5.0);
[INFO] [stderr]     |             ^ help: convert the identifier to snake case: `b`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `C` should have a snake case name
[INFO] [stderr]    --> src/bin/ch11/transformations.rs:175:13
[INFO] [stderr]     |
[INFO] [stderr] 175 |         let C = Matrix::<4>::IDENTITY.translation(10.0, 5.0, 7.0);
[INFO] [stderr]     |             ^ help: convert the identifier to snake case (notice the capitalization): `c`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `T` should have a snake case name
[INFO] [stderr]    --> src/bin/ch11/transformations.rs:190:13
[INFO] [stderr]     |
[INFO] [stderr] 190 |         let T = Matrix::<4>::IDENTITY
[INFO] [stderr]     |             ^ help: convert the identifier to snake case: `t`
[INFO] [stderr] 
[INFO] [stderr] warning: the feature `generic_const_exprs` is incomplete and may not be safe to use and/or cause compiler crashes
[INFO] [stderr]  --> src/bin/ch7/main.rs:1:12
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(generic_const_exprs)]
[INFO] [stderr]   |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: see issue #76560 <https://github.com/rust-lang/rust/issues/76560> for more information
[INFO] [stderr]   = note: `#[warn(incomplete_features)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated items `IDENTITY`, `is_invertible`, and `inverse` are never used
[INFO] [stderr]    --> src/bin/ch7/matrix.rs:92:15
[INFO] [stderr]     |
[INFO] [stderr] 91  | impl Matrix<3> {
[INFO] [stderr]     | -------------- associated items in this implementation
[INFO] [stderr] 92  |     pub const IDENTITY: Matrix<3> = Matrix {
[INFO] [stderr]     |               ^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 131 |     pub fn is_invertible(&self) -> bool {
[INFO] [stderr]     |            ^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 134 |     pub fn inverse(&self) -> Self {
[INFO] [stderr]     |            ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated items `IDENTITY`, `minor`, `cofactor`, `is_invertible`, and `inverse` are never used
[INFO] [stderr]    --> src/bin/ch7/matrix.rs:149:15
[INFO] [stderr]     |
[INFO] [stderr] 148 | impl Matrix<2> {
[INFO] [stderr]     | -------------- associated items in this implementation
[INFO] [stderr] 149 |     pub const IDENTITY: Matrix<2> = Matrix {
[INFO] [stderr]     |               ^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 152 |     pub fn minor(&self, row: usize, col: usize) -> f64 {
[INFO] [stderr]     |            ^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 155 |     pub fn cofactor(&self, row: usize, col: usize) -> f64 {
[INFO] [stderr]     |            ^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 161 |     pub fn is_invertible(&self) -> bool {
[INFO] [stderr]     |            ^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 164 |     pub fn inverse(&self) -> Self {
[INFO] [stderr]     |            ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable `A` should have a snake case name
[INFO] [stderr]    --> src/bin/ch7/transformations.rs:173:13
[INFO] [stderr]     |
[INFO] [stderr] 173 |         let A = Matrix::<4>::IDENTITY.rotation_x(FRAC_PI_2);
[INFO] [stderr]     |             ^ help: convert the identifier to snake case: `a`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable `B` should have a snake case name
[INFO] [stderr]    --> src/bin/ch7/transformations.rs:174:13
[INFO] [stderr]     |
[INFO] [stderr] 174 |         let B = Matrix::<4>::IDENTITY.scaling(5.0, 5.0, 5.0);
[INFO] [stderr]     |             ^ help: convert the identifier to snake case: `b`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `C` should have a snake case name
[INFO] [stderr]    --> src/bin/ch7/transformations.rs:175:13
[INFO] [stderr]     |
[INFO] [stderr] 175 |         let C = Matrix::<4>::IDENTITY.translation(10.0, 5.0, 7.0);
[INFO] [stderr]     |             ^ help: convert the identifier to snake case (notice the capitalization): `c`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `T` should have a snake case name
[INFO] [stderr]    --> src/bin/ch7/transformations.rs:190:13
[INFO] [stderr]     |
[INFO] [stderr] 190 |         let T = Matrix::<4>::IDENTITY
[INFO] [stderr]     |             ^ help: convert the identifier to snake case: `t`
[INFO] [stderr] 
[INFO] [stderr] warning: `ray_tracer` (bin "ch6" test) generated 8 warnings
[INFO] [stderr] warning: `ray_tracer` (bin "ch2" test) generated 2 warnings
[INFO] [stderr] warning: `ray_tracer` (bin "ch3" test) generated 5 warnings
[INFO] [stderr] warning: `ray_tracer` (bin "ch9" test) generated 20 warnings (run `cargo fix --bin "ch9" --tests` to apply 11 suggestions)
[INFO] [stderr] warning: `ray_tracer` (bin "ch4" test) generated 8 warnings
[INFO] [stderr] warning: `ray_tracer` (bin "ch10" test) generated 30 warnings (run `cargo fix --bin "ch10" --tests` to apply 14 suggestions)
[INFO] [stderr] warning: `ray_tracer` (bin "ch5" test) generated 8 warnings
[INFO] [stderr] warning: `ray_tracer` (bin "ch8" test) generated 9 warnings (run `cargo fix --bin "ch8" --tests` to apply 2 suggestions)
[INFO] [stderr] warning: `ray_tracer` (bin "ch1" test) generated 1 warning
[INFO] [stderr] warning: `ray_tracer` (bin "ch12" test) generated 40 warnings (run `cargo fix --bin "ch12" --tests` to apply 19 suggestions)
[INFO] [stderr] warning: `ray_tracer` (bin "ch11" test) generated 37 warnings (run `cargo fix --bin "ch11" --tests` to apply 18 suggestions)
[INFO] [stderr] warning: `ray_tracer` (bin "ch7" test) generated 7 warnings
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/bin/ch1/main.rs (/opt/rustwide/target/debug/deps/ch1-5c3b4ea545c6c3b0)
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test tuple::tests::point_minus_point ... ok
[INFO] [stdout] test tuple::tests::point_plus_vector ... ok
[INFO] [stdout] test tuple::tests::vector_plus_vector ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/bin/ch10/main.rs (/opt/rustwide/target/debug/deps/ch10-9cebcf081b764662)
[INFO] [stdout] 
[INFO] [stdout] running 145 tests
[INFO] [stdout] test camera::tests::constructing_a_camera ... ok
[INFO] [stdout] test camera::tests::constructing_ray_through_center_of_canvas ... ok
[INFO] [stdout] test camera::tests::pixel_size_for_horizontal_canvas ... ok
[INFO] [stdout] test camera::tests::pixel_size_for_vertical_canvas ... ok
[INFO] [stdout] test camera::tests::constructing_ray_when_camera_transformed ... ok
[INFO] [stdout] test camera::tests::constructing_ray_through_corner_of_canvas ... ok
[INFO] [stdout] test canvas::tests::canvas_creation ... ok
[INFO] [stdout] test canvas::tests::write_pixel ... ok
[INFO] [stdout] test lights::tests::point_light_has_position_and_intensity ... ok
[INFO] [stdout] test materials::tests::default_material ... ok
[INFO] [stdout] test materials::tests::lighting_with_eye_between_light_and_surface ... ok
[INFO] [stdout] test materials::tests::lighting_with_eye_in_reflection_path ... ok
[INFO] [stdout] test materials::tests::lighting_with_eye_offset_by_45 ... ok
[INFO] [stdout] test materials::tests::lighting_with_light_behind_surface ... ok
[INFO] [stdout] test materials::tests::lighting_with_light_offset_by_45 ... ok
[INFO] [stdout] test materials::tests::lighting_with_surface_in_shadow ... ok
[INFO] [stdout] test matrix::tests::cofactor_3x3 ... ok
[INFO] [stdout] test matrix::tests::another_inverse ... ok
[INFO] [stdout] test matrix::tests::another_inverse_again ... ok
[INFO] [stdout] test matrix::tests::create_4x4 ... ok
[INFO] [stdout] test matrix::tests::determinant_2x2 ... ok
[INFO] [stdout] test matrix::tests::determinant_3x3 ... ok
[INFO] [stdout] test matrix::tests::determinant_4x4 ... ok
[INFO] [stdout] test matrix::tests::create_3x3 ... ok
[INFO] [stdout] test matrix::tests::equality ... ok
[INFO] [stdout] test matrix::tests::inequality ... ok
[INFO] [stdout] test matrix::tests::not_invertible ... ok
[INFO] [stdout] test matrix::tests::create_2x2 ... ok
[INFO] [stdout] test matrix::tests::submatrix_4x4 ... ok
[INFO] [stdout] test matrix::tests::transpose_identity ... ok
[INFO] [stdout] test matrix::tests::inverse ... ok
[INFO] [stdout] test matrix::tests::invertible ... ok
[INFO] [stdout] test matrix::tests::minor_3x3 ... ok
[INFO] [stdout] test matrix::tests::multiply_by_identity ... ok
[INFO] [stdout] test matrix::tests::multiply_by_matrix ... ok
[INFO] [stdout] test matrix::tests::submatrix_3x3 ... ok
[INFO] [stdout] test matrix::tests::transpose_matrix ... ok
[INFO] [stdout] test matrix::tests::multiply_by_point ... ok
[INFO] [stdout] test matrix::tests::inverse_multiplication ... ok
[INFO] [stdout] test pattern::stripe::tests::create_stripe_pattern ... ok
[INFO] [stdout] test pattern::checkerboard::tests::checker_should_repeat_in_y ... ok
[INFO] [stdout] test pattern::gradient::tests::gradient_linearly_interpolates_between_colors ... ok
[INFO] [stdout] test pattern::checkerboard::tests::checker_should_repeat_in_x ... ok
[INFO] [stdout] test pattern::stripe::tests::lighting_with_pattern_applied ... ok
[INFO] [stdout] test pattern::stripe::tests::stripes_with_both_transformation ... ok
[INFO] [stdout] test pattern::stripe::tests::stripe_constant_in_y ... ok
[INFO] [stdout] test pattern::stripe::tests::stripes_with_object_transformation ... ok
[INFO] [stdout] test pattern::stripe::tests::stripe_constant_in_z ... ok
[INFO] [stdout] test pattern::tests::default_pattern_transformation ... ok
[INFO] [stdout] test pattern::tests::assign_transformation ... ok
[INFO] [stdout] test pattern::stripe::tests::stripes_with_pattern_transformation ... ok
[INFO] [stdout] test pattern::stripe::tests::stripe_alternates_in_x ... ok
[INFO] [stdout] test ray::tests::aggregating_intersections ... ok
[INFO] [stdout] test pattern::tests::pattern_with_object_transformation ... ok
[INFO] [stdout] test pattern::ring::tests::ring_should_extend_in_both_x_and_z ... ok
[INFO] [stdout] test ray::tests::create_and_query_ray ... ok
[INFO] [stdout] test pattern::tests::pattern_with_both_transforms ... ok
[INFO] [stdout] test ray::tests::change_sphere_transformation ... ok
[INFO] [stdout] test ray::tests::default_sphere_transformation ... ok
[INFO] [stdout] test ray::tests::hit_is_always_lowest_nonnegative_intersection ... ok
[INFO] [stdout] test pattern::checkerboard::tests::checker_should_repeat_in_z ... ok
[INFO] [stdout] test ray::tests::hit_when_all_positive_t ... ok
[INFO] [stdout] test ray::tests::hit_when_some_negative_t ... ok
[INFO] [stdout] test pattern::tests::pattern_with_pattern_transform ... ok
[INFO] [stdout] test ray::tests::intersect_scaled_sphere_with_ray ... ok
[INFO] [stdout] test ray::tests::hit_when_all_negative_t ... ok
[INFO] [stdout] test ray::tests::point_from_distance ... ok
[INFO] [stdout] test ray::tests::intersection_encapsulates_t_and_object ... ok
[INFO] [stdout] test ray::tests::intersect_translated_sphere_with_ray ... ok
[INFO] [stdout] test ray::tests::ray_intersect_sphere_at_tangent ... ok
[INFO] [stdout] test ray::tests::intersect_sets_object_on_intersection ... ok
[INFO] [stdout] test ray::tests::ray_misses_sphere ... ok
[INFO] [stdout] test ray::tests::ray_originates_in_sphere ... ok
[INFO] [stdout] test ray::tests::ray_intersect_sphere_at_two_points ... ok
[INFO] [stdout] test ray::tests::translate_ray ... ok
[INFO] [stdout] test ray::tests::scale_ray ... ok
[INFO] [stdout] test shape::plane::tests::intersect_coplanar_ray ... ok
[INFO] [stdout] test shape::plane::tests::intersect_ray_parallel ... ok
[INFO] [stdout] test ray::tests::sphere_behind_ray ... ok
[INFO] [stdout] test shape::sphere::tests::reflect_vector_at_45 ... ok
[INFO] [stdout] test shape::plane::tests::ray_intersect_from_below ... ok
[INFO] [stdout] test shape::sphere::tests::reflect_vector_off_slant ... ok
[INFO] [stdout] test shape::plane::tests::ray_intersect_from_above ... ok
[INFO] [stdout] test shape::sphere::tests::normal_is_normalized ... ok
[INFO] [stdout] test shape::tests::assign_material ... ok
[INFO] [stdout] test shape::tests::assign_transformation ... ok
[INFO] [stdout] test shape::sphere::tests::sphere_normal_on_z ... ok
[INFO] [stdout] test shape::plane::tests::normal_of_plane_is_constant ... ok
[INFO] [stdout] test shape::sphere::tests::sphere_normal_on_x ... ok
[INFO] [stdout] test shape::tests::default_material ... ok
[INFO] [stdout] test shape::tests::compute_normal_of_transformed_shape ... ok
[INFO] [stdout] test shape::tests::compute_normal_of_translated_shape ... ok
[INFO] [stdout] test shape::sphere::tests::sphere_normal_at_nonaxial ... ok
[INFO] [stdout] test transformations::tests::chained_transformations_applied_in_reverse ... ok
[INFO] [stdout] test transformations::tests::arbitrary_view_transformation ... ok
[INFO] [stdout] test shape::sphere::tests::sphere_normal_on_y ... ok
[INFO] [stdout] test transformations::tests::individual_transformations_applied_in_sequence ... ok
[INFO] [stdout] test shape::tests::intersect_scaled_shape_with_ray ... ok
[INFO] [stdout] test shape::tests::intersect_translated_sphere_with_ray ... ok
[INFO] [stdout] test shape::tests::default_transformation ... ok
[INFO] [stdout] test transformations::tests::multiply_by_transformation ... ok
[INFO] [stdout] test transformations::tests::inverse_rotation_around_x ... ok
[INFO] [stdout] test transformations::tests::rotate_around_x ... ok
[INFO] [stdout] test transformations::tests::rotate_around_y ... ok
[INFO] [stdout] test transformations::tests::rotate_around_z ... ok
[INFO] [stdout] test transformations::tests::multiply_by_translation_inverse ... ok
[INFO] [stdout] test transformations::tests::inverse_scaling_a_vector ... ok
[INFO] [stdout] test transformations::tests::shear_x_by_y ... ok
[INFO] [stdout] test transformations::tests::reflection ... ok
[INFO] [stdout] test transformations::tests::shear_x_by_z ... ok
[INFO] [stdout] test transformations::tests::shear_y_by_x ... ok
[INFO] [stdout] test transformations::tests::scaling_a_point ... ok
[INFO] [stdout] test transformations::tests::shear_y_by_z ... ok
[INFO] [stdout] test transformations::tests::shear_z_by_x ... ok
[INFO] [stdout] test transformations::tests::shear_z_by_y ... ok
[INFO] [stdout] test transformations::tests::scaling_a_vector ... ok
[INFO] [stdout] test transformations::tests::translation_does_not_affect_vector ... ok
[INFO] [stdout] test transformations::tests::view_transformation_moves_the_world ... ok
[INFO] [stdout] test tuple::color::tests::addition ... ok
[INFO] [stdout] test tuple::color::tests::color_multiplication ... ok
[INFO] [stdout] test transformations::tests::view_transformation_matrix_looking_in_positive_z ... ok
[INFO] [stdout] test tuple::color::tests::multiplication_by_scalar ... ok
[INFO] [stdout] test tuple::color::tests::subtraction ... ok
[INFO] [stdout] test transformations::tests::transformation_matrix_for_default_orientation ... ok
[INFO] [stdout] test tuple::tests::vector_plus_vector ... ok
[INFO] [stdout] test tuple::tests::point_minus_point ... ok
[INFO] [stdout] test tuple::tests::point_plus_vector ... ok
[INFO] [stdout] test world::tests::create_a_world ... ok
[INFO] [stdout] test world::tests::default_world ... ok
[INFO] [stdout] test world::tests::color_when_ray_misses ... ok
[INFO] [stdout] test world::tests::hit_should_offset_point ... ok
[INFO] [stdout] test world::tests::color_when_ray_hits ... ok
[INFO] [stdout] test world::tests::hit_when_intersection_occurs_on_exterior ... ok
[INFO] [stdout] test world::tests::no_shadow_when_object_behind_point ... ok
[INFO] [stdout] test world::tests::color_with_intersection_behind_ray ... ok
[INFO] [stdout] test world::tests::precomputing_state_of_intersection ... ok
[INFO] [stdout] test world::tests::hit_when_intersection_occurs_on_interior ... ok
[INFO] [stdout] test world::tests::shadow_when_object_between_point_and_light ... ok
[INFO] [stdout] test world::tests::intersect_world_with_ray ... ok
[INFO] [stdout] test world::tests::shading_an_intersection_from_inside ... ok
[INFO] [stdout] test world::tests::no_shadow_when_not_colinear_with_point_and_light ... ok
[INFO] [stdout] test world::tests::no_shadow_when_object_behind_light ... ok
[INFO] [stdout] test world::tests::shading_an_intersection ... ok
[INFO] [stdout] test world::tests::shade_hit_given_intersection_in_shadow ... ok
[INFO] [stdout] test camera::tests::render_world_with_camera ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 145 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.03s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/bin/ch11/main.rs (/opt/rustwide/target/debug/deps/ch11-b9eb57357642f5f2)
[INFO] [stdout] 
[INFO] [stdout] running 165 tests
[INFO] [stdout] test camera::tests::constructing_a_camera ... ok
[INFO] [stdout] test camera::tests::constructing_ray_through_center_of_canvas ... ok
[INFO] [stdout] test camera::tests::pixel_size_for_horizontal_canvas ... ok
[INFO] [stdout] test camera::tests::constructing_ray_through_corner_of_canvas ... ok
[INFO] [stdout] test camera::tests::pixel_size_for_vertical_canvas ... ok
[INFO] [stdout] test camera::tests::constructing_ray_when_camera_transformed ... ok
[INFO] [stdout] test canvas::tests::canvas_creation ... ok
[INFO] [stdout] test canvas::tests::write_pixel ... ok
[INFO] [stdout] test lights::tests::point_light_has_position_and_intensity ... ok
[INFO] [stdout] test materials::tests::default_material ... ok
[INFO] [stdout] test materials::tests::default_reflectivity ... ok
[INFO] [stdout] test materials::tests::default_transparency_and_refractive_index ... ok
[INFO] [stdout] test materials::tests::lighting_with_eye_between_light_and_surface ... ok
[INFO] [stdout] test materials::tests::lighting_with_eye_in_reflection_path ... ok
[INFO] [stdout] test materials::tests::lighting_with_eye_offset_by_45 ... ok
[INFO] [stdout] test materials::tests::lighting_with_light_behind_surface ... ok
[INFO] [stdout] test materials::tests::lighting_with_light_offset_by_45 ... ok
[INFO] [stdout] test materials::tests::lighting_with_surface_in_shadow ... ok
[INFO] [stdout] test matrix::tests::another_inverse ... ok
[INFO] [stdout] test matrix::tests::cofactor_3x3 ... ok
[INFO] [stdout] test matrix::tests::another_inverse_again ... ok
[INFO] [stdout] test matrix::tests::create_2x2 ... ok
[INFO] [stdout] test matrix::tests::create_3x3 ... ok
[INFO] [stdout] test matrix::tests::create_4x4 ... ok
[INFO] [stdout] test matrix::tests::determinant_2x2 ... ok
[INFO] [stdout] test matrix::tests::determinant_3x3 ... ok
[INFO] [stdout] test matrix::tests::equality ... ok
[INFO] [stdout] test matrix::tests::inequality ... ok
[INFO] [stdout] test matrix::tests::invertible ... ok
[INFO] [stdout] test matrix::tests::inverse ... ok
[INFO] [stdout] test matrix::tests::minor_3x3 ... ok
[INFO] [stdout] test matrix::tests::multiply_by_identity ... ok
[INFO] [stdout] test matrix::tests::multiply_by_matrix ... ok
[INFO] [stdout] test matrix::tests::not_invertible ... ok
[INFO] [stdout] test matrix::tests::determinant_4x4 ... ok
[INFO] [stdout] test matrix::tests::transpose_identity ... ok
[INFO] [stdout] test matrix::tests::submatrix_3x3 ... ok
[INFO] [stdout] test matrix::tests::transpose_matrix ... ok
[INFO] [stdout] test matrix::tests::multiply_by_point ... ok
[INFO] [stdout] test matrix::tests::submatrix_4x4 ... ok
[INFO] [stdout] test matrix::tests::inverse_multiplication ... ok
[INFO] [stdout] test pattern::checkerboard::tests::checker_should_repeat_in_y ... ok
[INFO] [stdout] test pattern::stripe::tests::create_stripe_pattern ... ok
[INFO] [stdout] test pattern::checkerboard::tests::checker_should_repeat_in_x ... ok
[INFO] [stdout] test pattern::stripe::tests::stripe_constant_in_y ... ok
[INFO] [stdout] test pattern::tests::assign_transformation ... ok
[INFO] [stdout] test pattern::stripe::tests::stripes_with_both_transformation ... ok
[INFO] [stdout] test pattern::checkerboard::tests::checker_should_repeat_in_z ... ok
[INFO] [stdout] test pattern::tests::default_pattern_transformation ... ok
[INFO] [stdout] test pattern::stripe::tests::stripe_constant_in_z ... ok
[INFO] [stdout] test pattern::stripe::tests::stripes_with_pattern_transformation ... ok
[INFO] [stdout] test pattern::stripe::tests::lighting_with_pattern_applied ... ok
[INFO] [stdout] test pattern::stripe::tests::stripes_with_object_transformation ... ok
[INFO] [stdout] test pattern::tests::pattern_with_pattern_transform ... ok
[INFO] [stdout] test pattern::ring::tests::ring_should_extend_in_both_x_and_z ... ok
[INFO] [stdout] test ray::tests::aggregating_intersections ... ok
[INFO] [stdout] test pattern::tests::pattern_with_object_transformation ... ok
[INFO] [stdout] test ray::tests::change_sphere_transformation ... ok
[INFO] [stdout] test pattern::gradient::tests::gradient_linearly_interpolates_between_colors ... ok
[INFO] [stdout] test ray::tests::create_and_query_ray ... ok
[INFO] [stdout] test ray::tests::hit_when_all_positive_t ... ok
[INFO] [stdout] test ray::tests::Schlick_approximation_under_total_internal_reflection ... ok
[INFO] [stdout] test pattern::stripe::tests::stripe_alternates_in_x ... ok
[INFO] [stdout] test pattern::tests::pattern_with_both_transforms ... ok
[INFO] [stdout] test ray::tests::intersection_encapsulates_t_and_object ... ok
[INFO] [stdout] test ray::tests::point_from_distance ... ok
[INFO] [stdout] test ray::tests::intersect_translated_sphere_with_ray ... ok
[INFO] [stdout] test ray::tests::ray_intersect_sphere_at_tangent ... ok
[INFO] [stdout] test ray::tests::hit_is_always_lowest_nonnegative_intersection ... ok
[INFO] [stdout] test ray::tests::hit_when_all_negative_t ... ok
[INFO] [stdout] test ray::tests::default_sphere_transformation ... ok
[INFO] [stdout] test ray::tests::intersect_sets_object_on_intersection ... ok
[INFO] [stdout] test ray::tests::intersect_scaled_sphere_with_ray ... ok
[INFO] [stdout] test ray::tests::hit_when_some_negative_t ... ok
[INFO] [stdout] test ray::tests::scale_ray ... ok
[INFO] [stdout] test ray::tests::ray_misses_sphere ... ok
[INFO] [stdout] test ray::tests::ray_originates_in_sphere ... ok
[INFO] [stdout] test ray::tests::ray_intersect_sphere_at_two_points ... ok
[INFO] [stdout] test ray::tests::translate_ray ... ok
[INFO] [stdout] test ray::tests::sphere_behind_ray ... ok
[INFO] [stdout] test ray::tests::schlick_approximation_with_small_angle_and_n2_gt_n1 ... ok
[INFO] [stdout] test shape::plane::tests::intersect_ray_parallel ... ok
[INFO] [stdout] test shape::sphere::tests::helper_for_producing_sphere_with_glassy_material ... ok
[INFO] [stdout] test shape::plane::tests::ray_intersect_from_above ... ok
[INFO] [stdout] test shape::plane::tests::ray_intersect_from_below ... ok
[INFO] [stdout] test shape::sphere::tests::reflect_vector_at_45 ... ok
[INFO] [stdout] test shape::sphere::tests::reflect_vector_off_slant ... ok
[INFO] [stdout] test ray::tests::schlick_approximation_with_perpendicular_viewing_angle ... ok
[INFO] [stdout] test shape::sphere::tests::normal_is_normalized ... ok
[INFO] [stdout] test ray::tests::finding_n1_and_n2_at_various_intersections ... ok
[INFO] [stdout] test shape::sphere::tests::sphere_normal_at_nonaxial ... ok
[INFO] [stdout] test shape::plane::tests::intersect_coplanar_ray ... ok
[INFO] [stdout] test ray::tests::under_point_offset_below_surface ... ok
[INFO] [stdout] test shape::plane::tests::normal_of_plane_is_constant ... ok
[INFO] [stdout] test shape::tests::assign_material ... ok
[INFO] [stdout] test shape::tests::assign_transformation ... ok
[INFO] [stdout] test shape::sphere::tests::sphere_normal_on_y ... ok
[INFO] [stdout] test shape::tests::default_material ... ok
[INFO] [stdout] test shape::sphere::tests::sphere_normal_on_z ... ok
[INFO] [stdout] test shape::sphere::tests::sphere_normal_on_x ... ok
[INFO] [stdout] test shape::tests::default_transformation ... ok
[INFO] [stdout] test shape::tests::compute_normal_of_transformed_shape ... ok
[INFO] [stdout] test transformations::tests::arbitrary_view_transformation ... ok
[INFO] [stdout] test transformations::tests::chained_transformations_applied_in_reverse ... ok
[INFO] [stdout] test shape::tests::compute_normal_of_translated_shape ... ok
[INFO] [stdout] test shape::tests::intersect_scaled_shape_with_ray ... ok
[INFO] [stdout] test shape::tests::intersect_translated_sphere_with_ray ... ok
[INFO] [stdout] test transformations::tests::individual_transformations_applied_in_sequence ... ok
[INFO] [stdout] test transformations::tests::multiply_by_transformation ... ok
[INFO] [stdout] test transformations::tests::inverse_rotation_around_x ... ok
[INFO] [stdout] test transformations::tests::inverse_scaling_a_vector ... ok
[INFO] [stdout] test transformations::tests::reflection ... ok
[INFO] [stdout] test transformations::tests::rotate_around_x ... ok
[INFO] [stdout] test transformations::tests::rotate_around_y ... ok
[INFO] [stdout] test transformations::tests::rotate_around_z ... ok
[INFO] [stdout] test transformations::tests::scaling_a_vector ... ok
[INFO] [stdout] test transformations::tests::scaling_a_point ... ok
[INFO] [stdout] test transformations::tests::multiply_by_translation_inverse ... ok
[INFO] [stdout] test transformations::tests::shear_x_by_y ... ok
[INFO] [stdout] test transformations::tests::shear_y_by_x ... ok
[INFO] [stdout] test transformations::tests::shear_y_by_z ... ok
[INFO] [stdout] test transformations::tests::shear_z_by_x ... ok
[INFO] [stdout] test transformations::tests::shear_z_by_y ... ok
[INFO] [stdout] test transformations::tests::transformation_matrix_for_default_orientation ... ok
[INFO] [stdout] test transformations::tests::view_transformation_moves_the_world ... ok
[INFO] [stdout] test transformations::tests::shear_x_by_z ... ok
[INFO] [stdout] test transformations::tests::view_transformation_matrix_looking_in_positive_z ... ok
[INFO] [stdout] test tuple::color::tests::multiplication_by_scalar ... ok
[INFO] [stdout] test tuple::color::tests::addition ... ok
[INFO] [stdout] test tuple::color::tests::subtraction ... ok
[INFO] [stdout] test tuple::color::tests::color_multiplication ... ok
[INFO] [stdout] test tuple::tests::point_minus_point ... ok
[INFO] [stdout] test tuple::tests::point_plus_vector ... ok
[INFO] [stdout] test tuple::tests::vector_plus_vector ... ok
[INFO] [stdout] test transformations::tests::translation_does_not_affect_vector ... ok
[INFO] [stdout] test world::tests::color_when_ray_misses ... ok
[INFO] [stdout] test world::tests::create_a_world ... ok
[INFO] [stdout] test world::tests::default_world ... ok
[INFO] [stdout] test world::tests::color_when_ray_hits ... ok
[INFO] [stdout] test world::tests::intersect_world_with_ray ... ok
[INFO] [stdout] test world::tests::no_shadow_when_not_colinear_with_point_and_light ... ok
[INFO] [stdout] test world::tests::hit_should_offset_point ... ok
[INFO] [stdout] test world::tests::no_shadow_when_object_behind_point ... ok
[INFO] [stdout] test world::tests::no_shadow_when_object_behind_light ... ok
[INFO] [stdout] test world::tests::precomputing_reflection_vector ... ok
[INFO] [stdout] test world::tests::hit_when_intersection_occurs_on_interior ... ok
[INFO] [stdout] test world::tests::hit_when_intersection_occurs_on_exterior ... ok
[INFO] [stdout] test world::tests::precomputing_state_of_intersection ... ok
[INFO] [stdout] test world::tests::reflected_color_at_max_recursive_depth ... ok
[INFO] [stdout] test world::tests::reflection_for_nonreflective_material ... ok
[INFO] [stdout] test world::tests::refracted_color_at_maximum_recursive_depth ... ok
[INFO] [stdout] test world::tests::refracted_color_with_opaque_surface ... ok
[INFO] [stdout] test world::tests::color_with_intersection_behind_ray ... ok
[INFO] [stdout] test world::tests::refracted_color_under_total_internal_reflection ... ok
[INFO] [stdout] test world::tests::shading_an_intersection ... ok
[INFO] [stdout] test world::tests::reflected_color_for_reflective_material ... ok
[INFO] [stdout] test world::tests::shade_hit_given_intersection_in_shadow ... ok
[INFO] [stdout] test world::tests::shadow_when_object_between_point_and_light ... ok
[INFO] [stdout] test world::tests::shading_an_intersection_from_inside ... ok
[INFO] [stdout] test world::tests::refracted_color_with_refracted_ray ... ok
[INFO] [stdout] test world::tests::color_at_with_mutually_reflective_surfaces ... ok
[INFO] [stdout] test world::tests::shade_hit_with_transparent_material ... ok
[INFO] [stdout] test world::tests::shade_hit_with_reflective_material ... ok
[INFO] [stdout] test world::tests::shade_hit_with_reflective_transparent_material ... ok
[INFO] [stdout] test camera::tests::render_world_with_camera ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 165 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.03s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/bin/ch12/main.rs (/opt/rustwide/target/debug/deps/ch12-d2bffab104a4a81b)
[INFO] [stdout] 
[INFO] [stdout] running 168 tests
[INFO] [stdout] test camera::tests::constructing_a_camera ... ok
[INFO] [stdout] test camera::tests::constructing_ray_through_center_of_canvas ... ok
[INFO] [stdout] test camera::tests::pixel_size_for_horizontal_canvas ... ok
[INFO] [stdout] test camera::tests::constructing_ray_through_corner_of_canvas ... ok
[INFO] [stdout] test camera::tests::pixel_size_for_vertical_canvas ... ok
[INFO] [stdout] test camera::tests::constructing_ray_when_camera_transformed ... ok
[INFO] [stdout] test canvas::tests::canvas_creation ... ok
[INFO] [stdout] test canvas::tests::write_pixel ... ok
[INFO] [stdout] test lights::tests::point_light_has_position_and_intensity ... ok
[INFO] [stdout] test materials::tests::default_material ... ok
[INFO] [stdout] test materials::tests::default_reflectivity ... ok
[INFO] [stdout] test materials::tests::default_transparency_and_refractive_index ... ok
[INFO] [stdout] test materials::tests::lighting_with_eye_in_reflection_path ... ok
[INFO] [stdout] test materials::tests::lighting_with_eye_between_light_and_surface ... ok
[INFO] [stdout] test materials::tests::lighting_with_light_behind_surface ... ok
[INFO] [stdout] test materials::tests::lighting_with_surface_in_shadow ... ok
[INFO] [stdout] test materials::tests::lighting_with_light_offset_by_45 ... ok
[INFO] [stdout] test materials::tests::lighting_with_eye_offset_by_45 ... ok
[INFO] [stdout] test matrix::tests::cofactor_3x3 ... ok
[INFO] [stdout] test matrix::tests::create_2x2 ... ok
[INFO] [stdout] test matrix::tests::create_3x3 ... ok
[INFO] [stdout] test matrix::tests::create_4x4 ... ok
[INFO] [stdout] test matrix::tests::determinant_2x2 ... ok
[INFO] [stdout] test matrix::tests::determinant_3x3 ... ok
[INFO] [stdout] test matrix::tests::another_inverse_again ... ok
[INFO] [stdout] test matrix::tests::determinant_4x4 ... ok
[INFO] [stdout] test matrix::tests::equality ... ok
[INFO] [stdout] test matrix::tests::minor_3x3 ... ok
[INFO] [stdout] test matrix::tests::another_inverse ... ok
[INFO] [stdout] test matrix::tests::inequality ... ok
[INFO] [stdout] test matrix::tests::multiply_by_point ... ok
[INFO] [stdout] test matrix::tests::not_invertible ... ok
[INFO] [stdout] test matrix::tests::submatrix_4x4 ... ok
[INFO] [stdout] test matrix::tests::multiply_by_identity ... ok
[INFO] [stdout] test matrix::tests::inverse ... ok
[INFO] [stdout] test matrix::tests::submatrix_3x3 ... ok
[INFO] [stdout] test matrix::tests::transpose_identity ... ok
[INFO] [stdout] test matrix::tests::transpose_matrix ... ok
[INFO] [stdout] test matrix::tests::multiply_by_matrix ... ok
[INFO] [stdout] test matrix::tests::invertible ... ok
[INFO] [stdout] test matrix::tests::inverse_multiplication ... ok
[INFO] [stdout] test pattern::checkerboard::tests::checker_should_repeat_in_x ... ok
[INFO] [stdout] test pattern::checkerboard::tests::checker_should_repeat_in_y ... ok
[INFO] [stdout] test pattern::stripe::tests::create_stripe_pattern ... ok
[INFO] [stdout] test pattern::checkerboard::tests::checker_should_repeat_in_z ... ok
[INFO] [stdout] test pattern::gradient::tests::gradient_linearly_interpolates_between_colors ... ok
[INFO] [stdout] test pattern::ring::tests::ring_should_extend_in_both_x_and_z ... ok
[INFO] [stdout] test pattern::stripe::tests::lighting_with_pattern_applied ... ok
[INFO] [stdout] test pattern::stripe::tests::stripe_alternates_in_x ... ok
[INFO] [stdout] test pattern::tests::assign_transformation ... ok
[INFO] [stdout] test pattern::stripe::tests::stripes_with_both_transformation ... ok
[INFO] [stdout] test pattern::stripe::tests::stripe_constant_in_y ... ok
[INFO] [stdout] test pattern::tests::default_pattern_transformation ... ok
[INFO] [stdout] test pattern::stripe::tests::stripe_constant_in_z ... ok
[INFO] [stdout] test pattern::stripe::tests::stripes_with_object_transformation ... ok
[INFO] [stdout] test ray::tests::aggregating_intersections ... ok
[INFO] [stdout] test pattern::tests::pattern_with_both_transforms ... ok
[INFO] [stdout] test ray::tests::change_sphere_transformation ... ok
[INFO] [stdout] test ray::tests::create_and_query_ray ... ok
[INFO] [stdout] test pattern::tests::pattern_with_object_transformation ... ok
[INFO] [stdout] test pattern::stripe::tests::stripes_with_pattern_transformation ... ok
[INFO] [stdout] test ray::tests::Schlick_approximation_under_total_internal_reflection ... ok
[INFO] [stdout] test ray::tests::hit_is_always_lowest_nonnegative_intersection ... ok
[INFO] [stdout] test pattern::tests::pattern_with_pattern_transform ... ok
[INFO] [stdout] test ray::tests::hit_when_all_negative_t ... ok
[INFO] [stdout] test ray::tests::hit_when_all_positive_t ... ok
[INFO] [stdout] test ray::tests::hit_when_some_negative_t ... ok
[INFO] [stdout] test ray::tests::default_sphere_transformation ... ok
[INFO] [stdout] test ray::tests::intersect_scaled_sphere_with_ray ... ok
[INFO] [stdout] test ray::tests::point_from_distance ... ok
[INFO] [stdout] test ray::tests::intersect_sets_object_on_intersection ... ok
[INFO] [stdout] test ray::tests::ray_intersect_sphere_at_tangent ... ok
[INFO] [stdout] test ray::tests::intersection_encapsulates_t_and_object ... ok
[INFO] [stdout] test ray::tests::scale_ray ... ok
[INFO] [stdout] test ray::tests::ray_misses_sphere ... ok
[INFO] [stdout] test ray::tests::ray_originates_in_sphere ... ok
[INFO] [stdout] test ray::tests::ray_intersect_sphere_at_two_points ... ok
[INFO] [stdout] test ray::tests::intersect_translated_sphere_with_ray ... ok
[INFO] [stdout] test ray::tests::schlick_approximation_with_perpendicular_viewing_angle ... ok
[INFO] [stdout] test ray::tests::translate_ray ... ok
[INFO] [stdout] test shape::cube::tests::normal_of_cube ... ok
[INFO] [stdout] test ray::tests::schlick_approximation_with_small_angle_and_n2_gt_n1 ... ok
[INFO] [stdout] test shape::cube::tests::ray_intersect_cube ... ok
[INFO] [stdout] test shape::cube::tests::ray_misses_cube ... ok
[INFO] [stdout] test shape::plane::tests::intersect_coplanar_ray ... ok
[INFO] [stdout] test ray::tests::finding_n1_and_n2_at_various_intersections ... ok
[INFO] [stdout] test ray::tests::under_point_offset_below_surface ... ok
[INFO] [stdout] test shape::plane::tests::intersect_ray_parallel ... ok
[INFO] [stdout] test shape::sphere::tests::helper_for_producing_sphere_with_glassy_material ... ok
[INFO] [stdout] test ray::tests::sphere_behind_ray ... ok
[INFO] [stdout] test shape::sphere::tests::reflect_vector_at_45 ... ok
[INFO] [stdout] test shape::sphere::tests::normal_is_normalized ... ok
[INFO] [stdout] test shape::plane::tests::ray_intersect_from_above ... ok
[INFO] [stdout] test shape::sphere::tests::sphere_normal_at_nonaxial ... ok
[INFO] [stdout] test shape::sphere::tests::sphere_normal_on_x ... ok
[INFO] [stdout] test shape::tests::assign_material ... ok
[INFO] [stdout] test shape::sphere::tests::sphere_normal_on_y ... ok
[INFO] [stdout] test shape::tests::default_material ... ok
[INFO] [stdout] test shape::plane::tests::ray_intersect_from_below ... ok
[INFO] [stdout] test shape::tests::default_transformation ... ok
[INFO] [stdout] test shape::plane::tests::normal_of_plane_is_constant ... ok
[INFO] [stdout] test shape::sphere::tests::sphere_normal_on_z ... ok
[INFO] [stdout] test shape::sphere::tests::reflect_vector_off_slant ... ok
[INFO] [stdout] test shape::tests::compute_normal_of_translated_shape ... ok
[INFO] [stdout] test shape::tests::intersect_scaled_shape_with_ray ... ok
[INFO] [stdout] test shape::tests::compute_normal_of_transformed_shape ... ok
[INFO] [stdout] test transformations::tests::arbitrary_view_transformation ... ok
[INFO] [stdout] test transformations::tests::chained_transformations_applied_in_reverse ... ok
[INFO] [stdout] test transformations::tests::individual_transformations_applied_in_sequence ... ok
[INFO] [stdout] test shape::tests::intersect_translated_sphere_with_ray ... ok
[INFO] [stdout] test transformations::tests::inverse_rotation_around_x ... ok
[INFO] [stdout] test transformations::tests::inverse_scaling_a_vector ... ok
[INFO] [stdout] test transformations::tests::reflection ... ok
[INFO] [stdout] test transformations::tests::rotate_around_x ... ok
[INFO] [stdout] test shape::tests::assign_transformation ... ok
[INFO] [stdout] test transformations::tests::rotate_around_y ... ok
[INFO] [stdout] test transformations::tests::rotate_around_z ... ok
[INFO] [stdout] test transformations::tests::scaling_a_point ... ok
[INFO] [stdout] test transformations::tests::multiply_by_transformation ... ok
[INFO] [stdout] test transformations::tests::multiply_by_translation_inverse ... ok
[INFO] [stdout] test transformations::tests::scaling_a_vector ... ok
[INFO] [stdout] test transformations::tests::shear_x_by_z ... ok
[INFO] [stdout] test transformations::tests::shear_y_by_x ... ok
[INFO] [stdout] test transformations::tests::shear_y_by_z ... ok
[INFO] [stdout] test transformations::tests::shear_x_by_y ... ok
[INFO] [stdout] test transformations::tests::shear_z_by_y ... ok
[INFO] [stdout] test transformations::tests::shear_z_by_x ... ok
[INFO] [stdout] test transformations::tests::transformation_matrix_for_default_orientation ... ok
[INFO] [stdout] test transformations::tests::view_transformation_matrix_looking_in_positive_z ... ok
[INFO] [stdout] test transformations::tests::translation_does_not_affect_vector ... ok
[INFO] [stdout] test transformations::tests::view_transformation_moves_the_world ... ok
[INFO] [stdout] test tuple::color::tests::addition ... ok
[INFO] [stdout] test tuple::color::tests::color_multiplication ... ok
[INFO] [stdout] test tuple::color::tests::multiplication_by_scalar ... ok
[INFO] [stdout] test tuple::color::tests::subtraction ... ok
[INFO] [stdout] test tuple::tests::point_minus_point ... ok
[INFO] [stdout] test tuple::tests::point_plus_vector ... ok
[INFO] [stdout] test tuple::tests::vector_plus_vector ... ok
[INFO] [stdout] test world::tests::create_a_world ... ok
[INFO] [stdout] test world::tests::color_when_ray_misses ... ok
[INFO] [stdout] test world::tests::default_world ... ok
[INFO] [stdout] test world::tests::intersect_world_with_ray ... ok
[INFO] [stdout] test world::tests::no_shadow_when_not_colinear_with_point_and_light ... ok
[INFO] [stdout] test world::tests::color_when_ray_hits ... ok
[INFO] [stdout] test world::tests::no_shadow_when_object_behind_light ... ok
[INFO] [stdout] test world::tests::color_with_intersection_behind_ray ... ok
[INFO] [stdout] test world::tests::no_shadow_when_object_behind_point ... ok
[INFO] [stdout] test world::tests::precomputing_reflection_vector ... ok
[INFO] [stdout] test world::tests::precomputing_state_of_intersection ... ok
[INFO] [stdout] test world::tests::hit_should_offset_point ... ok
[INFO] [stdout] test world::tests::reflected_color_at_max_recursive_depth ... ok
[INFO] [stdout] test world::tests::hit_when_intersection_occurs_on_exterior ... ok
[INFO] [stdout] test world::tests::reflection_for_nonreflective_material ... ok
[INFO] [stdout] test world::tests::hit_when_intersection_occurs_on_interior ... ok
[INFO] [stdout] test world::tests::refracted_color_at_maximum_recursive_depth ... ok
[INFO] [stdout] test world::tests::refracted_color_under_total_internal_reflection ... ok
[INFO] [stdout] test world::tests::refracted_color_with_opaque_surface ... ok
[INFO] [stdout] test world::tests::shadow_when_object_between_point_and_light ... ok
[INFO] [stdout] test world::tests::reflected_color_for_reflective_material ... ok
[INFO] [stdout] test world::tests::shade_hit_given_intersection_in_shadow ... ok
[INFO] [stdout] test world::tests::shading_an_intersection_from_inside ... ok
[INFO] [stdout] test world::tests::refracted_color_with_refracted_ray ... ok
[INFO] [stdout] test world::tests::shading_an_intersection ... ok
[INFO] [stdout] test world::tests::shade_hit_with_reflective_material ... ok
[INFO] [stdout] test world::tests::color_at_with_mutually_reflective_surfaces ... ok
[INFO] [stdout] test world::tests::shade_hit_with_transparent_material ... ok
[INFO] [stdout] test world::tests::shade_hit_with_reflective_transparent_material ... ok
[INFO] [stdout] test camera::tests::render_world_with_camera ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 168 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.03s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/bin/ch13/main.rs (/opt/rustwide/target/debug/deps/ch13-bb3171982fd0a529)
[INFO] [stdout] 
[INFO] [stdout] running 180 tests
[INFO] [stdout] test camera::tests::constructing_a_camera ... ok
[INFO] [stdout] test camera::tests::constructing_ray_through_center_of_canvas ... ok
[INFO] [stdout] test camera::tests::pixel_size_for_horizontal_canvas ... ok
[INFO] [stdout] test camera::tests::pixel_size_for_vertical_canvas ... ok
[INFO] [stdout] test camera::tests::constructing_ray_through_corner_of_canvas ... ok
[INFO] [stdout] test camera::tests::constructing_ray_when_camera_transformed ... ok
[INFO] [stdout] test canvas::tests::canvas_creation ... ok
[INFO] [stdout] test canvas::tests::write_pixel ... ok
[INFO] [stdout] test lights::tests::point_light_has_position_and_intensity ... ok
[INFO] [stdout] test materials::tests::default_material ... ok
[INFO] [stdout] test materials::tests::default_reflectivity ... ok
[INFO] [stdout] test materials::tests::default_transparency_and_refractive_index ... ok
[INFO] [stdout] test materials::tests::lighting_with_eye_between_light_and_surface ... ok
[INFO] [stdout] test materials::tests::lighting_with_eye_in_reflection_path ... ok
[INFO] [stdout] test materials::tests::lighting_with_eye_offset_by_45 ... ok
[INFO] [stdout] test materials::tests::lighting_with_light_behind_surface ... ok
[INFO] [stdout] test materials::tests::lighting_with_light_offset_by_45 ... ok
[INFO] [stdout] test materials::tests::lighting_with_surface_in_shadow ... ok
[INFO] [stdout] test matrix::tests::cofactor_3x3 ... ok
[INFO] [stdout] test matrix::tests::another_inverse ... ok
[INFO] [stdout] test matrix::tests::create_2x2 ... ok
[INFO] [stdout] test matrix::tests::another_inverse_again ... ok
[INFO] [stdout] test matrix::tests::determinant_3x3 ... ok
[INFO] [stdout] test matrix::tests::determinant_4x4 ... ok
[INFO] [stdout] test matrix::tests::create_3x3 ... ok
[INFO] [stdout] test matrix::tests::create_4x4 ... ok
[INFO] [stdout] test matrix::tests::inequality ... ok
[INFO] [stdout] test matrix::tests::determinant_2x2 ... ok
[INFO] [stdout] test matrix::tests::equality ... ok
[INFO] [stdout] test matrix::tests::inverse_multiplication ... ok
[INFO] [stdout] test matrix::tests::invertible ... ok
[INFO] [stdout] test matrix::tests::multiply_by_matrix ... ok
[INFO] [stdout] test matrix::tests::multiply_by_point ... ok
[INFO] [stdout] test matrix::tests::not_invertible ... ok
[INFO] [stdout] test matrix::tests::submatrix_3x3 ... ok
[INFO] [stdout] test matrix::tests::inverse ... ok
[INFO] [stdout] test matrix::tests::submatrix_4x4 ... ok
[INFO] [stdout] test matrix::tests::transpose_matrix ... ok
[INFO] [stdout] test matrix::tests::multiply_by_identity ... ok
[INFO] [stdout] test pattern::checkerboard::tests::checker_should_repeat_in_x ... ok
[INFO] [stdout] test pattern::checkerboard::tests::checker_should_repeat_in_y ... ok
[INFO] [stdout] test matrix::tests::minor_3x3 ... ok
[INFO] [stdout] test matrix::tests::transpose_identity ... ok
[INFO] [stdout] test pattern::stripe::tests::create_stripe_pattern ... ok
[INFO] [stdout] test pattern::checkerboard::tests::checker_should_repeat_in_z ... ok
[INFO] [stdout] test pattern::stripe::tests::stripes_with_object_transformation ... ok
[INFO] [stdout] test pattern::stripe::tests::stripes_with_both_transformation ... ok
[INFO] [stdout] test pattern::stripe::tests::stripe_constant_in_y ... ok
[INFO] [stdout] test pattern::tests::assign_transformation ... ok
[INFO] [stdout] test pattern::gradient::tests::gradient_linearly_interpolates_between_colors ... ok
[INFO] [stdout] test pattern::stripe::tests::stripe_constant_in_z ... ok
[INFO] [stdout] test pattern::stripe::tests::stripe_alternates_in_x ... ok
[INFO] [stdout] test pattern::stripe::tests::lighting_with_pattern_applied ... ok
[INFO] [stdout] test pattern::ring::tests::ring_should_extend_in_both_x_and_z ... ok
[INFO] [stdout] test ray::tests::aggregating_intersections ... ok
[INFO] [stdout] test pattern::tests::default_pattern_transformation ... ok
[INFO] [stdout] test ray::tests::change_sphere_transformation ... ok
[INFO] [stdout] test ray::tests::create_and_query_ray ... ok
[INFO] [stdout] test ray::tests::default_sphere_transformation ... ok
[INFO] [stdout] test ray::tests::hit_is_always_lowest_nonnegative_intersection ... ok
[INFO] [stdout] test ray::tests::Schlick_approximation_under_total_internal_reflection ... ok
[INFO] [stdout] test pattern::tests::pattern_with_both_transforms ... ok
[INFO] [stdout] test pattern::tests::pattern_with_pattern_transform ... ok
[INFO] [stdout] test pattern::stripe::tests::stripes_with_pattern_transformation ... ok
[INFO] [stdout] test pattern::tests::pattern_with_object_transformation ... ok
[INFO] [stdout] test ray::tests::hit_when_all_positive_t ... ok
[INFO] [stdout] test ray::tests::hit_when_all_negative_t ... ok
[INFO] [stdout] test ray::tests::point_from_distance ... ok
[INFO] [stdout] test ray::tests::intersection_encapsulates_t_and_object ... ok
[INFO] [stdout] test ray::tests::ray_intersect_sphere_at_tangent ... ok
[INFO] [stdout] test ray::tests::ray_intersect_sphere_at_two_points ... ok
[INFO] [stdout] test ray::tests::finding_n1_and_n2_at_various_intersections ... ok
[INFO] [stdout] test ray::tests::hit_when_some_negative_t ... ok
[INFO] [stdout] test ray::tests::ray_misses_sphere ... ok
[INFO] [stdout] test ray::tests::scale_ray ... ok
[INFO] [stdout] test ray::tests::ray_originates_in_sphere ... ok
[INFO] [stdout] test ray::tests::intersect_scaled_sphere_with_ray ... ok
[INFO] [stdout] test ray::tests::intersect_sets_object_on_intersection ... ok
[INFO] [stdout] test ray::tests::schlick_approximation_with_perpendicular_viewing_angle ... ok
[INFO] [stdout] test ray::tests::schlick_approximation_with_small_angle_and_n2_gt_n1 ... ok
[INFO] [stdout] test shape::cone::tests::intersecting_cone_with_ray_parallel_to_one_half ... ok
[INFO] [stdout] test shape::cone::tests::intersecting_cone_with_ray ... ok
[INFO] [stdout] test ray::tests::intersect_translated_sphere_with_ray ... ok
[INFO] [stdout] test shape::cube::tests::ray_misses_cube ... ok
[INFO] [stdout] test ray::tests::sphere_behind_ray ... ok
[INFO] [stdout] test shape::cone::tests::computing_normal_vector_on_cone ... ok
[INFO] [stdout] test shape::cone::tests::intersecting_cone_end_caps ... ok
[INFO] [stdout] test shape::cube::tests::normal_of_cube ... ok
[INFO] [stdout] test shape::cube::tests::ray_intersect_cube ... ok
[INFO] [stdout] test ray::tests::under_point_offset_below_surface ... ok
[INFO] [stdout] test ray::tests::translate_ray ... ok
[INFO] [stdout] test shape::cylinder::tests::default_min_and_max_for_cylinder ... ok
[INFO] [stdout] test shape::cylinder::tests::intersect_constrained_cylinder ... ok
[INFO] [stdout] test shape::cylinder::tests::default_closed_value_for_cylinder ... ok
[INFO] [stdout] test shape::cylinder::tests::normal_vector_of_cylinder_end_caps ... ok
[INFO] [stdout] test shape::cylinder::tests::normal_vector_on_cylinder ... ok
[INFO] [stdout] test shape::cylinder::tests::ray_misses_cylinder ... ok
[INFO] [stdout] test shape::plane::tests::intersect_coplanar_ray ... ok
[INFO] [stdout] test shape::cylinder::tests::ray_strikes_cylinder ... ok
[INFO] [stdout] test shape::plane::tests::intersect_ray_parallel ... ok
[INFO] [stdout] test shape::cylinder::tests::intersecting_caps_of_closed_cylinder ... ok
[INFO] [stdout] test shape::sphere::tests::helper_for_producing_sphere_with_glassy_material ... ok
[INFO] [stdout] test shape::plane::tests::ray_intersect_from_below ... ok
[INFO] [stdout] test shape::sphere::tests::reflect_vector_at_45 ... ok
[INFO] [stdout] test shape::plane::tests::ray_intersect_from_above ... ok
[INFO] [stdout] test shape::sphere::tests::normal_is_normalized ... ok
[INFO] [stdout] test shape::sphere::tests::sphere_normal_at_nonaxial ... ok
[INFO] [stdout] test shape::sphere::tests::reflect_vector_off_slant ... ok
[INFO] [stdout] test shape::plane::tests::normal_of_plane_is_constant ... ok
[INFO] [stdout] test shape::sphere::tests::sphere_normal_on_y ... ok
[INFO] [stdout] test shape::sphere::tests::sphere_normal_on_z ... ok
[INFO] [stdout] test shape::tests::default_material ... ok
[INFO] [stdout] test shape::tests::assign_material ... ok
[INFO] [stdout] test shape::tests::default_transformation ... ok
[INFO] [stdout] test shape::sphere::tests::sphere_normal_on_x ... ok
[INFO] [stdout] test shape::tests::assign_transformation ... ok
[INFO] [stdout] test shape::tests::compute_normal_of_transformed_shape ... ok
[INFO] [stdout] test transformations::tests::arbitrary_view_transformation ... ok
[INFO] [stdout] test transformations::tests::chained_transformations_applied_in_reverse ... ok
[INFO] [stdout] test shape::tests::intersect_scaled_shape_with_ray ... ok
[INFO] [stdout] test shape::tests::intersect_translated_sphere_with_ray ... ok
[INFO] [stdout] test transformations::tests::individual_transformations_applied_in_sequence ... ok
[INFO] [stdout] test shape::tests::compute_normal_of_translated_shape ... ok
[INFO] [stdout] test transformations::tests::inverse_rotation_around_x ... ok
[INFO] [stdout] test transformations::tests::multiply_by_transformation ... ok
[INFO] [stdout] test transformations::tests::inverse_scaling_a_vector ... ok
[INFO] [stdout] test transformations::tests::reflection ... ok
[INFO] [stdout] test transformations::tests::multiply_by_translation_inverse ... ok
[INFO] [stdout] test transformations::tests::rotate_around_x ... ok
[INFO] [stdout] test transformations::tests::rotate_around_y ... ok
[INFO] [stdout] test transformations::tests::rotate_around_z ... ok
[INFO] [stdout] test transformations::tests::scaling_a_point ... ok
[INFO] [stdout] test transformations::tests::scaling_a_vector ... ok
[INFO] [stdout] test transformations::tests::shear_x_by_y ... ok
[INFO] [stdout] test transformations::tests::shear_y_by_x ... ok
[INFO] [stdout] test transformations::tests::shear_y_by_z ... ok
[INFO] [stdout] test transformations::tests::shear_z_by_x ... ok
[INFO] [stdout] test transformations::tests::shear_z_by_y ... ok
[INFO] [stdout] test transformations::tests::shear_x_by_z ... ok
[INFO] [stdout] test transformations::tests::translation_does_not_affect_vector ... ok
[INFO] [stdout] test transformations::tests::transformation_matrix_for_default_orientation ... ok
[INFO] [stdout] test transformations::tests::view_transformation_matrix_looking_in_positive_z ... ok
[INFO] [stdout] test transformations::tests::view_transformation_moves_the_world ... ok
[INFO] [stdout] test tuple::color::tests::addition ... ok
[INFO] [stdout] test tuple::color::tests::color_multiplication ... ok
[INFO] [stdout] test tuple::color::tests::multiplication_by_scalar ... ok
[INFO] [stdout] test tuple::color::tests::subtraction ... ok
[INFO] [stdout] test tuple::tests::point_plus_vector ... ok
[INFO] [stdout] test tuple::tests::point_minus_point ... ok
[INFO] [stdout] test tuple::tests::vector_plus_vector ... ok
[INFO] [stdout] test world::tests::create_a_world ... ok
[INFO] [stdout] test world::tests::default_world ... ok
[INFO] [stdout] test world::tests::color_when_ray_misses ... ok
[INFO] [stdout] test world::tests::hit_when_intersection_occurs_on_exterior ... ok
[INFO] [stdout] test world::tests::hit_should_offset_point ... ok
[INFO] [stdout] test world::tests::hit_when_intersection_occurs_on_interior ... ok
[INFO] [stdout] test world::tests::intersect_world_with_ray ... ok
[INFO] [stdout] test world::tests::no_shadow_when_not_colinear_with_point_and_light ... ok
[INFO] [stdout] test world::tests::color_when_ray_hits ... ok
[INFO] [stdout] test world::tests::color_with_intersection_behind_ray ... ok
[INFO] [stdout] test world::tests::precomputing_state_of_intersection ... ok
[INFO] [stdout] test world::tests::no_shadow_when_object_behind_light ... ok
[INFO] [stdout] test world::tests::no_shadow_when_object_behind_point ... ok
[INFO] [stdout] test world::tests::refracted_color_at_maximum_recursive_depth ... ok
[INFO] [stdout] test world::tests::reflection_for_nonreflective_material ... ok
[INFO] [stdout] test world::tests::precomputing_reflection_vector ... ok
[INFO] [stdout] test world::tests::reflected_color_at_max_recursive_depth ... ok
[INFO] [stdout] test world::tests::refracted_color_with_opaque_surface ... ok
[INFO] [stdout] test world::tests::refracted_color_under_total_internal_reflection ... ok
[INFO] [stdout] test world::tests::reflected_color_for_reflective_material ... ok
[INFO] [stdout] test world::tests::shadow_when_object_between_point_and_light ... ok
[INFO] [stdout] test world::tests::shading_an_intersection ... ok
[INFO] [stdout] test world::tests::shading_an_intersection_from_inside ... ok
[INFO] [stdout] test world::tests::shade_hit_given_intersection_in_shadow ... ok
[INFO] [stdout] test world::tests::refracted_color_with_refracted_ray ... ok
[INFO] [stdout] test world::tests::shade_hit_with_reflective_material ... ok
[INFO] [stdout] test world::tests::color_at_with_mutually_reflective_surfaces ... ok
[INFO] [stdout] test world::tests::shade_hit_with_transparent_material ... ok
[INFO] [stdout] test world::tests::shade_hit_with_reflective_transparent_material ... ok
[INFO] [stdout] test camera::tests::render_world_with_camera ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 180 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.03s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/bin/ch2/main.rs (/opt/rustwide/target/debug/deps/ch2-d11e88a5164cde07)
[INFO] [stdout] 
[INFO] [stdout] running 9 tests
[INFO] [stdout] test canvas::tests::canvas_creation ... ok
[INFO] [stdout] test canvas::tests::write_pixel ... ok
[INFO] [stdout] test tuple::color::tests::addition ... ok
[INFO] [stdout] test tuple::color::tests::color_multiplication ... ok
[INFO] [stdout] test tuple::color::tests::multiplication_by_scalar ... ok
[INFO] [stdout] test tuple::color::tests::subtraction ... ok
[INFO] [stdout] test tuple::tests::point_minus_point ... ok
[INFO] [stdout] test tuple::tests::point_plus_vector ... ok
[INFO] [stdout] test tuple::tests::vector_plus_vector ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 9 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/bin/ch3/main.rs (/opt/rustwide/target/debug/deps/ch3-c69482f10eecaf92)
[INFO] [stdout] 
[INFO] [stdout] running 32 tests
[INFO] [stdout] test canvas::tests::canvas_creation ... ok
[INFO] [stdout] test canvas::tests::write_pixel ... ok
[INFO] [stdout] test matrix::tests::another_inverse ... ok
[INFO] [stdout] test matrix::tests::cofactor_3x3 ... ok
[INFO] [stdout] test matrix::tests::another_inverse_again ... ok
[INFO] [stdout] test matrix::tests::create_2x2 ... ok
[INFO] [stdout] test matrix::tests::create_3x3 ... ok
[INFO] [stdout] test matrix::tests::create_4x4 ... ok
[INFO] [stdout] test matrix::tests::determinant_2x2 ... ok
[INFO] [stdout] test matrix::tests::determinant_3x3 ... ok
[INFO] [stdout] test matrix::tests::determinant_4x4 ... ok
[INFO] [stdout] test matrix::tests::equality ... ok
[INFO] [stdout] test matrix::tests::inequality ... ok
[INFO] [stdout] test matrix::tests::inverse ... ok
[INFO] [stdout] test matrix::tests::invertible ... ok
[INFO] [stdout] test matrix::tests::inverse_multiplication ... ok
[INFO] [stdout] test matrix::tests::minor_3x3 ... ok
[INFO] [stdout] test matrix::tests::multiply_by_identity ... ok
[INFO] [stdout] test matrix::tests::multiply_by_matrix ... ok
[INFO] [stdout] test matrix::tests::multiply_by_point ... ok
[INFO] [stdout] test matrix::tests::not_invertible ... ok
[INFO] [stdout] test matrix::tests::submatrix_3x3 ... ok
[INFO] [stdout] test matrix::tests::submatrix_4x4 ... ok
[INFO] [stdout] test matrix::tests::transpose_identity ... ok
[INFO] [stdout] test matrix::tests::transpose_matrix ... ok
[INFO] [stdout] test tuple::color::tests::addition ... ok
[INFO] [stdout] test tuple::color::tests::color_multiplication ... ok
[INFO] [stdout] test tuple::color::tests::multiplication_by_scalar ... ok
[INFO] [stdout] test tuple::color::tests::subtraction ... ok
[INFO] [stdout] test tuple::tests::point_plus_vector ... ok
[INFO] [stdout] test tuple::tests::point_minus_point ... ok
[INFO] [stdout] test tuple::tests::vector_plus_vector ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 32 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/bin/ch4/main.rs (/opt/rustwide/target/debug/deps/ch4-f9c5c5e4284ecb97)
[INFO] [stdout] 
[INFO] [stdout] running 51 tests
[INFO] [stdout] test canvas::tests::canvas_creation ... ok
[INFO] [stdout] test canvas::tests::write_pixel ... ok
[INFO] [stdout] test matrix::tests::another_inverse ... ok
[INFO] [stdout] test matrix::tests::cofactor_3x3 ... ok
[INFO] [stdout] test matrix::tests::create_2x2 ... ok
[INFO] [stdout] test matrix::tests::another_inverse_again ... ok
[INFO] [stdout] test matrix::tests::create_3x3 ... ok
[INFO] [stdout] test matrix::tests::create_4x4 ... ok
[INFO] [stdout] test matrix::tests::determinant_2x2 ... ok
[INFO] [stdout] test matrix::tests::determinant_3x3 ... ok
[INFO] [stdout] test matrix::tests::determinant_4x4 ... ok
[INFO] [stdout] test matrix::tests::equality ... ok
[INFO] [stdout] test matrix::tests::inequality ... ok
[INFO] [stdout] test matrix::tests::inverse ... ok
[INFO] [stdout] test matrix::tests::invertible ... ok
[INFO] [stdout] test matrix::tests::inverse_multiplication ... ok
[INFO] [stdout] test matrix::tests::minor_3x3 ... ok
[INFO] [stdout] test matrix::tests::multiply_by_identity ... ok
[INFO] [stdout] test matrix::tests::multiply_by_point ... ok
[INFO] [stdout] test matrix::tests::multiply_by_matrix ... ok
[INFO] [stdout] test matrix::tests::submatrix_3x3 ... ok
[INFO] [stdout] test matrix::tests::submatrix_4x4 ... ok
[INFO] [stdout] test matrix::tests::transpose_identity ... ok
[INFO] [stdout] test matrix::tests::transpose_matrix ... ok
[INFO] [stdout] test transformations::tests::chained_transformations_applied_in_reverse ... ok
[INFO] [stdout] test transformations::tests::individual_transformations_applied_in_sequence ... ok
[INFO] [stdout] test transformations::tests::inverse_rotation_around_x ... ok
[INFO] [stdout] test transformations::tests::reflection ... ok
[INFO] [stdout] test transformations::tests::inverse_scaling_a_vector ... ok
[INFO] [stdout] test transformations::tests::multiply_by_translation_inverse ... ok
[INFO] [stdout] test transformations::tests::rotate_around_x ... ok
[INFO] [stdout] test transformations::tests::rotate_around_y ... ok
[INFO] [stdout] test transformations::tests::rotate_around_z ... ok
[INFO] [stdout] test matrix::tests::not_invertible ... ok
[INFO] [stdout] test transformations::tests::scaling_a_point ... ok
[INFO] [stdout] test transformations::tests::scaling_a_vector ... ok
[INFO] [stdout] test transformations::tests::shear_y_by_z ... ok
[INFO] [stdout] test transformations::tests::shear_x_by_z ... ok
[INFO] [stdout] test transformations::tests::shear_z_by_x ... ok
[INFO] [stdout] test transformations::tests::multiply_by_transformation ... ok
[INFO] [stdout] test transformations::tests::shear_z_by_y ... ok
[INFO] [stdout] test transformations::tests::translation_does_not_affect_vector ... ok
[INFO] [stdout] test transformations::tests::shear_y_by_x ... ok
[INFO] [stdout] test tuple::color::tests::addition ... ok
[INFO] [stdout] test transformations::tests::shear_x_by_y ... ok
[INFO] [stdout] test tuple::tests::point_minus_point ... ok
[INFO] [stdout] test tuple::tests::point_plus_vector ... ok
[INFO] [stdout] test tuple::color::tests::subtraction ... ok
[INFO] [stdout] test tuple::tests::vector_plus_vector ... ok
[INFO] [stdout] test tuple::color::tests::multiplication_by_scalar ... ok
[INFO] [stdout] test tuple::color::tests::color_multiplication ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 51 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/bin/ch5/main.rs (/opt/rustwide/target/debug/deps/ch5-d50ec537704bd396)
[INFO] [stdout] 
[INFO] [stdout] running 71 tests
[INFO] [stdout] test canvas::tests::canvas_creation ... ok
[INFO] [stdout] test canvas::tests::write_pixel ... ok
[INFO] [stdout] test matrix::tests::another_inverse ... ok
[INFO] [stdout] test matrix::tests::cofactor_3x3 ... ok
[INFO] [stdout] test matrix::tests::another_inverse_again ... ok
[INFO] [stdout] test matrix::tests::create_2x2 ... ok
[INFO] [stdout] test matrix::tests::create_3x3 ... ok
[INFO] [stdout] test matrix::tests::create_4x4 ... ok
[INFO] [stdout] test matrix::tests::determinant_2x2 ... ok
[INFO] [stdout] test matrix::tests::determinant_3x3 ... ok
[INFO] [stdout] test matrix::tests::determinant_4x4 ... ok
[INFO] [stdout] test matrix::tests::equality ... ok
[INFO] [stdout] test matrix::tests::inequality ... ok
[INFO] [stdout] test matrix::tests::inverse ... ok
[INFO] [stdout] test matrix::tests::invertible ... ok
[INFO] [stdout] test matrix::tests::minor_3x3 ... ok
[INFO] [stdout] test matrix::tests::inverse_multiplication ... ok
[INFO] [stdout] test matrix::tests::multiply_by_identity ... ok
[INFO] [stdout] test matrix::tests::multiply_by_point ... ok
[INFO] [stdout] test matrix::tests::not_invertible ... ok
[INFO] [stdout] test matrix::tests::multiply_by_matrix ... ok
[INFO] [stdout] test matrix::tests::submatrix_3x3 ... ok
[INFO] [stdout] test matrix::tests::transpose_identity ... ok
[INFO] [stdout] test ray::tests::aggregating_intersections ... ok
[INFO] [stdout] test ray::tests::change_sphere_transformation ... ok
[INFO] [stdout] test ray::tests::create_and_query_ray ... ok
[INFO] [stdout] test ray::tests::hit_is_always_lowest_nonnegative_intersection ... ok
[INFO] [stdout] test matrix::tests::transpose_matrix ... ok
[INFO] [stdout] test ray::tests::hit_when_some_negative_t ... ok
[INFO] [stdout] test matrix::tests::submatrix_4x4 ... ok
[INFO] [stdout] test ray::tests::hit_when_all_positive_t ... ok
[INFO] [stdout] test ray::tests::intersection_encapsulates_t_and_object ... ok
[INFO] [stdout] test ray::tests::point_from_distance ... ok
[INFO] [stdout] test ray::tests::intersect_translated_sphere_with_ray ... ok
[INFO] [stdout] test ray::tests::ray_intersect_sphere_at_tangent ... ok
[INFO] [stdout] test ray::tests::ray_misses_sphere ... ok
[INFO] [stdout] test ray::tests::scale_ray ... ok
[INFO] [stdout] test ray::tests::ray_intersect_sphere_at_two_points ... ok
[INFO] [stdout] test ray::tests::ray_originates_in_sphere ... ok
[INFO] [stdout] test ray::tests::default_sphere_transformation ... ok
[INFO] [stdout] test ray::tests::hit_when_all_negative_t ... ok
[INFO] [stdout] test ray::tests::sphere_behind_ray ... ok
[INFO] [stdout] test ray::tests::translate_ray ... ok
[INFO] [stdout] test ray::tests::intersect_sets_object_on_intersection ... ok
[INFO] [stdout] test transformations::tests::chained_transformations_applied_in_reverse ... ok
[INFO] [stdout] test transformations::tests::inverse_rotation_around_x ... ok
[INFO] [stdout] test transformations::tests::inverse_scaling_a_vector ... ok
[INFO] [stdout] test ray::tests::intersect_scaled_sphere_with_ray ... ok
[INFO] [stdout] test transformations::tests::individual_transformations_applied_in_sequence ... ok
[INFO] [stdout] test transformations::tests::reflection ... ok
[INFO] [stdout] test transformations::tests::multiply_by_translation_inverse ... ok
[INFO] [stdout] test transformations::tests::rotate_around_z ... ok
[INFO] [stdout] test transformations::tests::scaling_a_point ... ok
[INFO] [stdout] test transformations::tests::multiply_by_transformation ... ok
[INFO] [stdout] test transformations::tests::scaling_a_vector ... ok
[INFO] [stdout] test transformations::tests::shear_x_by_y ... ok
[INFO] [stdout] test transformations::tests::rotate_around_x ... ok
[INFO] [stdout] test transformations::tests::shear_y_by_x ... ok
[INFO] [stdout] test transformations::tests::rotate_around_y ... ok
[INFO] [stdout] test transformations::tests::shear_y_by_z ... ok
[INFO] [stdout] test transformations::tests::shear_z_by_x ... ok
[INFO] [stdout] test transformations::tests::translation_does_not_affect_vector ... ok
[INFO] [stdout] test tuple::color::tests::addition ... ok
[INFO] [stdout] test tuple::color::tests::color_multiplication ... ok
[INFO] [stdout] test transformations::tests::shear_z_by_y ... ok
[INFO] [stdout] test transformations::tests::shear_x_by_z ... ok
[INFO] [stdout] test tuple::tests::point_minus_point ... ok
[INFO] [stdout] test tuple::color::tests::multiplication_by_scalar ... ok
[INFO] [stdout] test tuple::tests::vector_plus_vector ... ok
[INFO] [stdout] test tuple::tests::point_plus_vector ... ok
[INFO] [stdout] test tuple::color::tests::subtraction ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 71 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/bin/ch6/main.rs (/opt/rustwide/target/debug/deps/ch6-d07deb94b2192db9)
[INFO] [stdout] 
[INFO] [stdout] running 89 tests
[INFO] [stdout] test canvas::tests::canvas_creation ... ok
[INFO] [stdout] test lights::tests::point_light_has_position_and_intensity ... ok
[INFO] [stdout] test canvas::tests::write_pixel ... ok
[INFO] [stdout] test materials::tests::default_material ... ok
[INFO] [stdout] test materials::tests::lighting_with_eye_between_light_and_surface ... ok
[INFO] [stdout] test materials::tests::lighting_with_eye_in_reflection_path ... ok
[INFO] [stdout] test materials::tests::lighting_with_eye_offset_by_45 ... ok
[INFO] [stdout] test materials::tests::lighting_with_light_behind_surface ... ok
[INFO] [stdout] test materials::tests::lighting_with_light_offset_by_45 ... ok
[INFO] [stdout] test matrix::tests::another_inverse ... ok
[INFO] [stdout] test matrix::tests::cofactor_3x3 ... ok
[INFO] [stdout] test matrix::tests::another_inverse_again ... ok
[INFO] [stdout] test matrix::tests::create_3x3 ... ok
[INFO] [stdout] test matrix::tests::create_2x2 ... ok
[INFO] [stdout] test matrix::tests::create_4x4 ... ok
[INFO] [stdout] test matrix::tests::determinant_2x2 ... ok
[INFO] [stdout] test matrix::tests::determinant_3x3 ... ok
[INFO] [stdout] test matrix::tests::determinant_4x4 ... ok
[INFO] [stdout] test matrix::tests::equality ... ok
[INFO] [stdout] test matrix::tests::inequality ... ok
[INFO] [stdout] test matrix::tests::invertible ... ok
[INFO] [stdout] test matrix::tests::inverse ... ok
[INFO] [stdout] test matrix::tests::inverse_multiplication ... ok
[INFO] [stdout] test matrix::tests::multiply_by_identity ... ok
[INFO] [stdout] test matrix::tests::minor_3x3 ... ok
[INFO] [stdout] test matrix::tests::multiply_by_point ... ok
[INFO] [stdout] test matrix::tests::transpose_matrix ... ok
[INFO] [stdout] test ray::tests::aggregating_intersections ... ok
[INFO] [stdout] test matrix::tests::not_invertible ... ok
[INFO] [stdout] test ray::tests::change_sphere_transformation ... ok
[INFO] [stdout] test matrix::tests::multiply_by_matrix ... ok
[INFO] [stdout] test ray::tests::create_and_query_ray ... ok
[INFO] [stdout] test ray::tests::default_sphere_transformation ... ok
[INFO] [stdout] test matrix::tests::submatrix_4x4 ... ok
[INFO] [stdout] test ray::tests::hit_is_always_lowest_nonnegative_intersection ... ok
[INFO] [stdout] test matrix::tests::submatrix_3x3 ... ok
[INFO] [stdout] test matrix::tests::transpose_identity ... ok
[INFO] [stdout] test ray::tests::intersect_scaled_sphere_with_ray ... ok
[INFO] [stdout] test ray::tests::intersect_sets_object_on_intersection ... ok
[INFO] [stdout] test ray::tests::intersection_encapsulates_t_and_object ... ok
[INFO] [stdout] test ray::tests::intersect_translated_sphere_with_ray ... ok
[INFO] [stdout] test ray::tests::hit_when_all_positive_t ... ok
[INFO] [stdout] test ray::tests::hit_when_some_negative_t ... ok
[INFO] [stdout] test ray::tests::ray_intersect_sphere_at_two_points ... ok
[INFO] [stdout] test ray::tests::scale_ray ... ok
[INFO] [stdout] test ray::tests::ray_misses_sphere ... ok
[INFO] [stdout] test ray::tests::hit_when_all_negative_t ... ok
[INFO] [stdout] test ray::tests::ray_originates_in_sphere ... ok
[INFO] [stdout] test ray::tests::point_from_distance ... ok
[INFO] [stdout] test ray::tests::translate_ray ... ok
[INFO] [stdout] test ray::tests::ray_intersect_sphere_at_tangent ... ok
[INFO] [stdout] test ray::tests::sphere_behind_ray ... ok
[INFO] [stdout] test shapes::sphere::tests::reflect_vector_at_45 ... ok
[INFO] [stdout] test shapes::sphere::tests::compute_normal_of_translated_sphere ... ok
[INFO] [stdout] test shapes::sphere::tests::reflect_vector_off_slant ... ok
[INFO] [stdout] test shapes::sphere::tests::sphere_may_be_assigned_material ... ok
[INFO] [stdout] test shapes::sphere::tests::normal_is_normalized ... ok
[INFO] [stdout] test shapes::sphere::tests::sphere_has_default_material ... ok
[INFO] [stdout] test shapes::sphere::tests::compute_normal_of_transformed_sphere ... ok
[INFO] [stdout] test shapes::sphere::tests::sphere_normal_on_x ... ok
[INFO] [stdout] test shapes::sphere::tests::sphere_normal_at_nonaxial ... ok
[INFO] [stdout] test shapes::sphere::tests::sphere_normal_on_z ... ok
[INFO] [stdout] test shapes::sphere::tests::sphere_normal_on_y ... ok
[INFO] [stdout] test transformations::tests::chained_transformations_applied_in_reverse ... ok
[INFO] [stdout] test transformations::tests::individual_transformations_applied_in_sequence ... ok
[INFO] [stdout] test transformations::tests::inverse_rotation_around_x ... ok
[INFO] [stdout] test transformations::tests::inverse_scaling_a_vector ... ok
[INFO] [stdout] test transformations::tests::rotate_around_y ... ok
[INFO] [stdout] test transformations::tests::multiply_by_translation_inverse ... ok
[INFO] [stdout] test transformations::tests::scaling_a_point ... ok
[INFO] [stdout] test transformations::tests::scaling_a_vector ... ok
[INFO] [stdout] test transformations::tests::rotate_around_z ... ok
[INFO] [stdout] test transformations::tests::shear_x_by_y ... ok
[INFO] [stdout] test transformations::tests::shear_x_by_z ... ok
[INFO] [stdout] test transformations::tests::shear_y_by_x ... ok
[INFO] [stdout] test transformations::tests::reflection ... ok
[INFO] [stdout] test transformations::tests::rotate_around_x ... ok
[INFO] [stdout] test transformations::tests::shear_y_by_z ... ok
[INFO] [stdout] test tuple::tests::vector_plus_vector ... ok
[INFO] [stdout] test transformations::tests::shear_z_by_x ... ok
[INFO] [stdout] test transformations::tests::multiply_by_transformation ... ok
[INFO] [stdout] test transformations::tests::translation_does_not_affect_vector ... ok
[INFO] [stdout] test tuple::color::tests::addition ... ok
[INFO] [stdout] test tuple::color::tests::color_multiplication ... ok
[INFO] [stdout] test tuple::color::tests::multiplication_by_scalar ... ok
[INFO] [stdout] test tuple::color::tests::subtraction ... ok
[INFO] [stdout] test transformations::tests::shear_z_by_y ... ok
[INFO] [stdout] test tuple::tests::point_minus_point ... ok
[INFO] [stdout] test tuple::tests::point_plus_vector ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 89 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/bin/ch7/main.rs (/opt/rustwide/target/debug/deps/ch7-c3cd27b7b12c9d06)
[INFO] [stdout] 
[INFO] [stdout] running 111 tests
[INFO] [stdout] test camera::tests::constructing_a_camera ... ok
[INFO] [stdout] test camera::tests::constructing_ray_through_corner_of_canvas ... ok
[INFO] [stdout] test camera::tests::constructing_ray_through_center_of_canvas ... ok
[INFO] [stdout] test camera::tests::pixel_size_for_vertical_canvas ... ok
[INFO] [stdout] test camera::tests::constructing_ray_when_camera_transformed ... ok
[INFO] [stdout] test camera::tests::pixel_size_for_horizontal_canvas ... ok
[INFO] [stdout] test canvas::tests::canvas_creation ... ok
[INFO] [stdout] test canvas::tests::write_pixel ... ok
[INFO] [stdout] test lights::tests::point_light_has_position_and_intensity ... ok
[INFO] [stdout] test materials::tests::default_material ... ok
[INFO] [stdout] test materials::tests::lighting_with_eye_between_light_and_surface ... ok
[INFO] [stdout] test materials::tests::lighting_with_eye_in_reflection_path ... ok
[INFO] [stdout] test materials::tests::lighting_with_eye_offset_by_45 ... ok
[INFO] [stdout] test materials::tests::lighting_with_light_behind_surface ... ok
[INFO] [stdout] test materials::tests::lighting_with_light_offset_by_45 ... ok
[INFO] [stdout] test matrix::tests::cofactor_3x3 ... ok
[INFO] [stdout] test matrix::tests::another_inverse ... ok
[INFO] [stdout] test matrix::tests::create_2x2 ... ok
[INFO] [stdout] test matrix::tests::another_inverse_again ... ok
[INFO] [stdout] test matrix::tests::create_4x4 ... ok
[INFO] [stdout] test matrix::tests::determinant_2x2 ... ok
[INFO] [stdout] test matrix::tests::create_3x3 ... ok
[INFO] [stdout] test matrix::tests::determinant_4x4 ... ok
[INFO] [stdout] test matrix::tests::inequality ... ok
[INFO] [stdout] test matrix::tests::equality ... ok
[INFO] [stdout] test matrix::tests::determinant_3x3 ... ok
[INFO] [stdout] test matrix::tests::inverse ... ok
[INFO] [stdout] test matrix::tests::invertible ... ok
[INFO] [stdout] test matrix::tests::minor_3x3 ... ok
[INFO] [stdout] test matrix::tests::inverse_multiplication ... ok
[INFO] [stdout] test matrix::tests::multiply_by_identity ... ok
[INFO] [stdout] test matrix::tests::multiply_by_matrix ... ok
[INFO] [stdout] test matrix::tests::multiply_by_point ... ok
[INFO] [stdout] test ray::tests::create_and_query_ray ... ok
[INFO] [stdout] test ray::tests::default_sphere_transformation ... ok
[INFO] [stdout] test ray::tests::hit_is_always_lowest_nonnegative_intersection ... ok
[INFO] [stdout] test ray::tests::hit_when_all_negative_t ... ok
[INFO] [stdout] test matrix::tests::not_invertible ... ok
[INFO] [stdout] test matrix::tests::submatrix_3x3 ... ok
[INFO] [stdout] test matrix::tests::submatrix_4x4 ... ok
[INFO] [stdout] test matrix::tests::transpose_identity ... ok
[INFO] [stdout] test matrix::tests::transpose_matrix ... ok
[INFO] [stdout] test ray::tests::aggregating_intersections ... ok
[INFO] [stdout] test ray::tests::hit_when_all_positive_t ... ok
[INFO] [stdout] test ray::tests::hit_when_some_negative_t ... ok
[INFO] [stdout] test ray::tests::intersect_sets_object_on_intersection ... ok
[INFO] [stdout] test ray::tests::intersection_encapsulates_t_and_object ... ok
[INFO] [stdout] test ray::tests::change_sphere_transformation ... ok
[INFO] [stdout] test ray::tests::point_from_distance ... ok
[INFO] [stdout] test ray::tests::intersect_scaled_sphere_with_ray ... ok
[INFO] [stdout] test ray::tests::ray_intersect_sphere_at_tangent ... ok
[INFO] [stdout] test ray::tests::ray_misses_sphere ... ok
[INFO] [stdout] test ray::tests::ray_intersect_sphere_at_two_points ... ok
[INFO] [stdout] test ray::tests::sphere_behind_ray ... ok
[INFO] [stdout] test ray::tests::translate_ray ... ok
[INFO] [stdout] test ray::tests::intersect_translated_sphere_with_ray ... ok
[INFO] [stdout] test shapes::sphere::tests::reflect_vector_off_slant ... ok
[INFO] [stdout] test shapes::sphere::tests::reflect_vector_at_45 ... ok
[INFO] [stdout] test shapes::sphere::tests::sphere_has_default_material ... ok
[INFO] [stdout] test shapes::sphere::tests::compute_normal_of_translated_sphere ... ok
[INFO] [stdout] test shapes::sphere::tests::sphere_may_be_assigned_material ... ok
[INFO] [stdout] test ray::tests::scale_ray ... ok
[INFO] [stdout] test ray::tests::ray_originates_in_sphere ... ok
[INFO] [stdout] test shapes::sphere::tests::sphere_normal_at_nonaxial ... ok
[INFO] [stdout] test shapes::sphere::tests::normal_is_normalized ... ok
[INFO] [stdout] test transformations::tests::individual_transformations_applied_in_sequence ... ok
[INFO] [stdout] test transformations::tests::chained_transformations_applied_in_reverse ... ok
[INFO] [stdout] test shapes::sphere::tests::compute_normal_of_transformed_sphere ... ok
[INFO] [stdout] test transformations::tests::multiply_by_transformation ... ok
[INFO] [stdout] test transformations::tests::inverse_scaling_a_vector ... ok
[INFO] [stdout] test shapes::sphere::tests::sphere_normal_on_y ... ok
[INFO] [stdout] test transformations::tests::reflection ... ok
[INFO] [stdout] test transformations::tests::rotate_around_x ... ok
[INFO] [stdout] test shapes::sphere::tests::sphere_normal_on_z ... ok
[INFO] [stdout] test transformations::tests::rotate_around_y ... ok
[INFO] [stdout] test transformations::tests::rotate_around_z ... ok
[INFO] [stdout] test shapes::sphere::tests::sphere_normal_on_x ... ok
[INFO] [stdout] test transformations::tests::scaling_a_point ... ok
[INFO] [stdout] test transformations::tests::inverse_rotation_around_x ... ok
[INFO] [stdout] test transformations::tests::arbitrary_view_transformation ... ok
[INFO] [stdout] test transformations::tests::multiply_by_translation_inverse ... ok
[INFO] [stdout] test transformations::tests::scaling_a_vector ... ok
[INFO] [stdout] test transformations::tests::shear_z_by_y ... ok
[INFO] [stdout] test transformations::tests::translation_does_not_affect_vector ... ok
[INFO] [stdout] test transformations::tests::view_transformation_matrix_looking_in_positive_z ... ok
[INFO] [stdout] test transformations::tests::shear_y_by_x ... ok
[INFO] [stdout] test transformations::tests::shear_x_by_z ... ok
[INFO] [stdout] test transformations::tests::transformation_matrix_for_default_orientation ... ok
[INFO] [stdout] test transformations::tests::shear_y_by_z ... ok
[INFO] [stdout] test transformations::tests::shear_z_by_x ... ok
[INFO] [stdout] test transformations::tests::view_transformation_moves_the_world ... ok
[INFO] [stdout] test tuple::color::tests::addition ... ok
[INFO] [stdout] test transformations::tests::shear_x_by_y ... ok
[INFO] [stdout] test tuple::color::tests::color_multiplication ... ok
[INFO] [stdout] test tuple::color::tests::multiplication_by_scalar ... ok
[INFO] [stdout] test tuple::tests::point_minus_point ... ok
[INFO] [stdout] test tuple::color::tests::subtraction ... ok
[INFO] [stdout] test tuple::tests::vector_plus_vector ... ok
[INFO] [stdout] test world::tests::default_world ... ok
[INFO] [stdout] test world::tests::create_a_world ... ok
[INFO] [stdout] test world::tests::color_when_ray_misses ... ok
[INFO] [stdout] test tuple::tests::point_plus_vector ... ok
[INFO] [stdout] test world::tests::hit_when_intersection_occurs_on_exterior ... ok
[INFO] [stdout] test world::tests::color_when_ray_hits ... ok
[INFO] [stdout] test world::tests::color_with_intersection_behind_ray ... ok
[INFO] [stdout] test world::tests::intersect_world_with_ray ... ok
[INFO] [stdout] test world::tests::hit_when_intersection_occurs_on_interior ... ok
[INFO] [stdout] test world::tests::precomputing_state_of_intersection ... ok
[INFO] [stdout] test world::tests::shading_an_intersection ... ok
[INFO] [stdout] test world::tests::shading_an_intersection_from_inside ... ok
[INFO] [stdout] test camera::tests::render_world_with_camera ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 111 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/bin/ch8/main.rs (/opt/rustwide/target/debug/deps/ch8-3203afcc9252de2c)
[INFO] [stdout] 
[INFO] [stdout] running 118 tests
[INFO] [stdout] test camera::tests::constructing_a_camera ... ok
[INFO] [stdout] test camera::tests::pixel_size_for_horizontal_canvas ... ok
[INFO] [stdout] test camera::tests::constructing_ray_through_center_of_canvas ... ok
[INFO] [stdout] test camera::tests::constructing_ray_through_corner_of_canvas ... ok
[INFO] [stdout] test camera::tests::constructing_ray_when_camera_transformed ... ok
[INFO] [stdout] test camera::tests::pixel_size_for_vertical_canvas ... ok
[INFO] [stdout] test canvas::tests::canvas_creation ... ok
[INFO] [stdout] test canvas::tests::write_pixel ... ok
[INFO] [stdout] test materials::tests::default_material ... ok
[INFO] [stdout] test lights::tests::point_light_has_position_and_intensity ... ok
[INFO] [stdout] test materials::tests::lighting_with_eye_between_light_and_surface ... ok
[INFO] [stdout] test materials::tests::lighting_with_eye_in_reflection_path ... ok
[INFO] [stdout] test materials::tests::lighting_with_eye_offset_by_45 ... ok
[INFO] [stdout] test materials::tests::lighting_with_light_behind_surface ... ok
[INFO] [stdout] test materials::tests::lighting_with_light_offset_by_45 ... ok
[INFO] [stdout] test materials::tests::lighting_with_surface_in_shadow ... ok
[INFO] [stdout] test matrix::tests::another_inverse ... ok
[INFO] [stdout] test matrix::tests::cofactor_3x3 ... ok
[INFO] [stdout] test matrix::tests::another_inverse_again ... ok
[INFO] [stdout] test matrix::tests::create_2x2 ... ok
[INFO] [stdout] test matrix::tests::create_3x3 ... ok
[INFO] [stdout] test matrix::tests::create_4x4 ... ok
[INFO] [stdout] test matrix::tests::determinant_2x2 ... ok
[INFO] [stdout] test matrix::tests::determinant_3x3 ... ok
[INFO] [stdout] test matrix::tests::determinant_4x4 ... ok
[INFO] [stdout] test matrix::tests::equality ... ok
[INFO] [stdout] test matrix::tests::inequality ... ok
[INFO] [stdout] test matrix::tests::inverse ... ok
[INFO] [stdout] test matrix::tests::minor_3x3 ... ok
[INFO] [stdout] test matrix::tests::inverse_multiplication ... ok
[INFO] [stdout] test matrix::tests::invertible ... ok
[INFO] [stdout] test matrix::tests::multiply_by_identity ... ok
[INFO] [stdout] test matrix::tests::multiply_by_point ... ok
[INFO] [stdout] test matrix::tests::multiply_by_matrix ... ok
[INFO] [stdout] test matrix::tests::submatrix_3x3 ... ok
[INFO] [stdout] test matrix::tests::transpose_identity ... ok
[INFO] [stdout] test matrix::tests::transpose_matrix ... ok
[INFO] [stdout] test ray::tests::create_and_query_ray ... ok
[INFO] [stdout] test ray::tests::change_sphere_transformation ... ok
[INFO] [stdout] test ray::tests::default_sphere_transformation ... ok
[INFO] [stdout] test ray::tests::hit_when_all_negative_t ... ok
[INFO] [stdout] test matrix::tests::not_invertible ... ok
[INFO] [stdout] test matrix::tests::submatrix_4x4 ... ok
[INFO] [stdout] test ray::tests::hit_when_some_negative_t ... ok
[INFO] [stdout] test ray::tests::hit_is_always_lowest_nonnegative_intersection ... ok
[INFO] [stdout] test ray::tests::intersect_scaled_sphere_with_ray ... ok
[INFO] [stdout] test ray::tests::intersection_encapsulates_t_and_object ... ok
[INFO] [stdout] test ray::tests::hit_when_all_positive_t ... ok
[INFO] [stdout] test ray::tests::point_from_distance ... ok
[INFO] [stdout] test ray::tests::ray_intersect_sphere_at_tangent ... ok
[INFO] [stdout] test ray::tests::intersect_sets_object_on_intersection ... ok
[INFO] [stdout] test ray::tests::scale_ray ... ok
[INFO] [stdout] test ray::tests::ray_misses_sphere ... ok
[INFO] [stdout] test ray::tests::ray_intersect_sphere_at_two_points ... ok
[INFO] [stdout] test ray::tests::ray_originates_in_sphere ... ok
[INFO] [stdout] test ray::tests::aggregating_intersections ... ok
[INFO] [stdout] test ray::tests::translate_ray ... ok
[INFO] [stdout] test shapes::sphere::tests::compute_normal_of_translated_sphere ... ok
[INFO] [stdout] test shapes::sphere::tests::compute_normal_of_transformed_sphere ... ok
[INFO] [stdout] test shapes::sphere::tests::reflect_vector_at_45 ... ok
[INFO] [stdout] test ray::tests::intersect_translated_sphere_with_ray ... ok
[INFO] [stdout] test ray::tests::sphere_behind_ray ... ok
[INFO] [stdout] test shapes::sphere::tests::reflect_vector_off_slant ... ok
[INFO] [stdout] test shapes::sphere::tests::sphere_has_default_material ... ok
[INFO] [stdout] test shapes::sphere::tests::sphere_may_be_assigned_material ... ok
[INFO] [stdout] test shapes::sphere::tests::normal_is_normalized ... ok
[INFO] [stdout] test transformations::tests::arbitrary_view_transformation ... ok
[INFO] [stdout] test shapes::sphere::tests::sphere_normal_on_x ... ok
[INFO] [stdout] test shapes::sphere::tests::sphere_normal_on_y ... ok
[INFO] [stdout] test shapes::sphere::tests::sphere_normal_on_z ... ok
[INFO] [stdout] test shapes::sphere::tests::sphere_normal_at_nonaxial ... ok
[INFO] [stdout] test transformations::tests::rotate_around_x ... ok
[INFO] [stdout] test transformations::tests::rotate_around_y ... ok
[INFO] [stdout] test transformations::tests::individual_transformations_applied_in_sequence ... ok
[INFO] [stdout] test transformations::tests::inverse_rotation_around_x ... ok
[INFO] [stdout] test transformations::tests::scaling_a_point ... ok
[INFO] [stdout] test transformations::tests::rotate_around_z ... ok
[INFO] [stdout] test transformations::tests::chained_transformations_applied_in_reverse ... ok
[INFO] [stdout] test transformations::tests::inverse_scaling_a_vector ... ok
[INFO] [stdout] test transformations::tests::multiply_by_transformation ... ok
[INFO] [stdout] test transformations::tests::multiply_by_translation_inverse ... ok
[INFO] [stdout] test transformations::tests::reflection ... ok
[INFO] [stdout] test transformations::tests::scaling_a_vector ... ok
[INFO] [stdout] test transformations::tests::shear_y_by_x ... ok
[INFO] [stdout] test transformations::tests::shear_y_by_z ... ok
[INFO] [stdout] test transformations::tests::shear_x_by_y ... ok
[INFO] [stdout] test transformations::tests::shear_x_by_z ... ok
[INFO] [stdout] test transformations::tests::shear_z_by_x ... ok
[INFO] [stdout] test transformations::tests::shear_z_by_y ... ok
[INFO] [stdout] test transformations::tests::transformation_matrix_for_default_orientation ... ok
[INFO] [stdout] test transformations::tests::translation_does_not_affect_vector ... ok
[INFO] [stdout] test transformations::tests::view_transformation_moves_the_world ... ok
[INFO] [stdout] test tuple::color::tests::addition ... ok
[INFO] [stdout] test tuple::color::tests::color_multiplication ... ok
[INFO] [stdout] test transformations::tests::view_transformation_matrix_looking_in_positive_z ... ok
[INFO] [stdout] test tuple::tests::point_minus_point ... ok
[INFO] [stdout] test tuple::tests::vector_plus_vector ... ok
[INFO] [stdout] test tuple::tests::point_plus_vector ... ok
[INFO] [stdout] test world::tests::default_world ... ok
[INFO] [stdout] test world::tests::color_when_ray_misses ... ok
[INFO] [stdout] test tuple::color::tests::multiplication_by_scalar ... ok
[INFO] [stdout] test world::tests::create_a_world ... ok
[INFO] [stdout] test tuple::color::tests::subtraction ... ok
[INFO] [stdout] test world::tests::hit_should_offset_point ... ok
[INFO] [stdout] test world::tests::hit_when_intersection_occurs_on_exterior ... ok
[INFO] [stdout] test world::tests::color_when_ray_hits ... ok
[INFO] [stdout] test world::tests::color_with_intersection_behind_ray ... ok
[INFO] [stdout] test world::tests::intersect_world_with_ray ... ok
[INFO] [stdout] test world::tests::no_shadow_when_not_colinear_with_point_and_light ... ok
[INFO] [stdout] test world::tests::hit_when_intersection_occurs_on_interior ... ok
[INFO] [stdout] test world::tests::precomputing_state_of_intersection ... ok
[INFO] [stdout] test world::tests::no_shadow_when_object_behind_light ... ok
[INFO] [stdout] test world::tests::no_shadow_when_object_behind_point ... ok
[INFO] [stdout] test world::tests::shadow_when_object_between_point_and_light ... ok
[INFO] [stdout] test world::tests::shading_an_intersection ... ok
[INFO] [stdout] test world::tests::shading_an_intersection_from_inside ... ok
[INFO] [stdout] test world::tests::shade_hit_given_intersection_in_shadow ... ok
[INFO] [stdout] test camera::tests::render_world_with_camera ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 118 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.03s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/bin/ch9/main.rs (/opt/rustwide/target/debug/deps/ch9-8402a2cd11261f92)
[INFO] [stdout] 
[INFO] [stdout] running 127 tests
[INFO] [stdout] test camera::tests::constructing_a_camera ... ok
[INFO] [stdout] test camera::tests::constructing_ray_through_center_of_canvas ... ok
[INFO] [stdout] test camera::tests::constructing_ray_through_corner_of_canvas ... ok
[INFO] [stdout] test camera::tests::pixel_size_for_horizontal_canvas ... ok
[INFO] [stdout] test camera::tests::pixel_size_for_vertical_canvas ... ok
[INFO] [stdout] test camera::tests::constructing_ray_when_camera_transformed ... ok
[INFO] [stdout] test canvas::tests::canvas_creation ... ok
[INFO] [stdout] test canvas::tests::write_pixel ... ok
[INFO] [stdout] test lights::tests::point_light_has_position_and_intensity ... ok
[INFO] [stdout] test materials::tests::default_material ... ok
[INFO] [stdout] test materials::tests::lighting_with_eye_between_light_and_surface ... ok
[INFO] [stdout] test materials::tests::lighting_with_eye_in_reflection_path ... ok
[INFO] [stdout] test materials::tests::lighting_with_eye_offset_by_45 ... ok
[INFO] [stdout] test materials::tests::lighting_with_light_behind_surface ... ok
[INFO] [stdout] test materials::tests::lighting_with_light_offset_by_45 ... ok
[INFO] [stdout] test materials::tests::lighting_with_surface_in_shadow ... ok
[INFO] [stdout] test matrix::tests::cofactor_3x3 ... ok
[INFO] [stdout] test matrix::tests::create_2x2 ... ok
[INFO] [stdout] test matrix::tests::another_inverse ... ok
[INFO] [stdout] test matrix::tests::another_inverse_again ... ok
[INFO] [stdout] test matrix::tests::create_3x3 ... ok
[INFO] [stdout] test matrix::tests::create_4x4 ... ok
[INFO] [stdout] test matrix::tests::determinant_2x2 ... ok
[INFO] [stdout] test matrix::tests::equality ... ok
[INFO] [stdout] test matrix::tests::determinant_4x4 ... ok
[INFO] [stdout] test matrix::tests::determinant_3x3 ... ok
[INFO] [stdout] test matrix::tests::invertible ... ok
[INFO] [stdout] test matrix::tests::multiply_by_point ... ok
[INFO] [stdout] test matrix::tests::submatrix_4x4 ... ok
[INFO] [stdout] test matrix::tests::inverse ... ok
[INFO] [stdout] test matrix::tests::submatrix_3x3 ... ok
[INFO] [stdout] test matrix::tests::transpose_identity ... ok
[INFO] [stdout] test matrix::tests::transpose_matrix ... ok
[INFO] [stdout] test matrix::tests::multiply_by_identity ... ok
[INFO] [stdout] test ray::tests::aggregating_intersections ... ok
[INFO] [stdout] test ray::tests::change_sphere_transformation ... ok
[INFO] [stdout] test ray::tests::create_and_query_ray ... ok
[INFO] [stdout] test ray::tests::default_sphere_transformation ... ok
[INFO] [stdout] test ray::tests::hit_is_always_lowest_nonnegative_intersection ... ok
[INFO] [stdout] test matrix::tests::minor_3x3 ... ok
[INFO] [stdout] test ray::tests::hit_when_all_positive_t ... ok
[INFO] [stdout] test matrix::tests::multiply_by_matrix ... ok
[INFO] [stdout] test ray::tests::hit_when_all_negative_t ... ok
[INFO] [stdout] test ray::tests::hit_when_some_negative_t ... ok
[INFO] [stdout] test matrix::tests::inverse_multiplication ... ok
[INFO] [stdout] test matrix::tests::inequality ... ok
[INFO] [stdout] test matrix::tests::not_invertible ... ok
[INFO] [stdout] test ray::tests::intersection_encapsulates_t_and_object ... ok
[INFO] [stdout] test ray::tests::intersect_scaled_sphere_with_ray ... ok
[INFO] [stdout] test ray::tests::intersect_sets_object_on_intersection ... ok
[INFO] [stdout] test ray::tests::ray_intersect_sphere_at_tangent ... ok
[INFO] [stdout] test ray::tests::ray_intersect_sphere_at_two_points ... ok
[INFO] [stdout] test ray::tests::ray_misses_sphere ... ok
[INFO] [stdout] test ray::tests::intersect_translated_sphere_with_ray ... ok
[INFO] [stdout] test ray::tests::point_from_distance ... ok
[INFO] [stdout] test ray::tests::ray_originates_in_sphere ... ok
[INFO] [stdout] test shapes::plane::tests::ray_intersect_from_above ... ok
[INFO] [stdout] test ray::tests::scale_ray ... ok
[INFO] [stdout] test shapes::sphere::tests::reflect_vector_at_45 ... ok
[INFO] [stdout] test shapes::sphere::tests::reflect_vector_off_slant ... ok
[INFO] [stdout] test shapes::plane::tests::ray_intersect_from_below ... ok
[INFO] [stdout] test ray::tests::sphere_behind_ray ... ok
[INFO] [stdout] test shapes::sphere::tests::sphere_normal_at_nonaxial ... ok
[INFO] [stdout] test shapes::plane::tests::intersect_coplanar_ray ... ok
[INFO] [stdout] test shapes::sphere::tests::sphere_normal_on_x ... ok
[INFO] [stdout] test ray::tests::translate_ray ... ok
[INFO] [stdout] test shapes::plane::tests::normal_of_plane_is_constant ... ok
[INFO] [stdout] test shapes::plane::tests::intersect_ray_parallel ... ok
[INFO] [stdout] test shapes::sphere::tests::sphere_normal_on_y ... ok
[INFO] [stdout] test shapes::tests::assign_material ... ok
[INFO] [stdout] test shapes::tests::assign_transformation ... ok
[INFO] [stdout] test shapes::sphere::tests::normal_is_normalized ... ok
[INFO] [stdout] test shapes::sphere::tests::sphere_normal_on_z ... ok
[INFO] [stdout] test shapes::tests::compute_normal_of_transformed_shape ... ok
[INFO] [stdout] test shapes::tests::default_material ... ok
[INFO] [stdout] test shapes::tests::compute_normal_of_translated_shape ... ok
[INFO] [stdout] test shapes::tests::default_transformation ... ok
[INFO] [stdout] test transformations::tests::chained_transformations_applied_in_reverse ... ok
[INFO] [stdout] test shapes::tests::intersect_scaled_shape_with_ray ... ok
[INFO] [stdout] test transformations::tests::individual_transformations_applied_in_sequence ... ok
[INFO] [stdout] test shapes::tests::intersect_translated_sphere_with_ray ... ok
[INFO] [stdout] test transformations::tests::arbitrary_view_transformation ... ok
[INFO] [stdout] test transformations::tests::inverse_rotation_around_x ... ok
[INFO] [stdout] test transformations::tests::inverse_scaling_a_vector ... ok
[INFO] [stdout] test transformations::tests::multiply_by_transformation ... ok
[INFO] [stdout] test transformations::tests::reflection ... ok
[INFO] [stdout] test transformations::tests::rotate_around_x ... ok
[INFO] [stdout] test transformations::tests::rotate_around_y ... ok
[INFO] [stdout] test transformations::tests::rotate_around_z ... ok
[INFO] [stdout] test transformations::tests::scaling_a_point ... ok
[INFO] [stdout] test transformations::tests::multiply_by_translation_inverse ... ok
[INFO] [stdout] test transformations::tests::scaling_a_vector ... ok
[INFO] [stdout] test transformations::tests::shear_x_by_y ... ok
[INFO] [stdout] test transformations::tests::shear_y_by_x ... ok
[INFO] [stdout] test transformations::tests::shear_x_by_z ... ok
[INFO] [stdout] test transformations::tests::shear_y_by_z ... ok
[INFO] [stdout] test transformations::tests::shear_z_by_x ... ok
[INFO] [stdout] test transformations::tests::shear_z_by_y ... ok
[INFO] [stdout] test transformations::tests::transformation_matrix_for_default_orientation ... ok
[INFO] [stdout] test transformations::tests::translation_does_not_affect_vector ... ok
[INFO] [stdout] test transformations::tests::view_transformation_matrix_looking_in_positive_z ... ok
[INFO] [stdout] test tuple::color::tests::color_multiplication ... ok
[INFO] [stdout] test transformations::tests::view_transformation_moves_the_world ... ok
[INFO] [stdout] test tuple::color::tests::addition ... ok
[INFO] [stdout] test tuple::color::tests::multiplication_by_scalar ... ok
[INFO] [stdout] test tuple::tests::point_minus_point ... ok
[INFO] [stdout] test tuple::color::tests::subtraction ... ok
[INFO] [stdout] test tuple::tests::vector_plus_vector ... ok
[INFO] [stdout] test tuple::tests::point_plus_vector ... ok
[INFO] [stdout] test world::tests::default_world ... ok
[INFO] [stdout] test world::tests::color_when_ray_misses ... ok
[INFO] [stdout] test world::tests::create_a_world ... ok
[INFO] [stdout] test world::tests::hit_should_offset_point ... ok
[INFO] [stdout] test world::tests::hit_when_intersection_occurs_on_exterior ... ok
[INFO] [stdout] test world::tests::hit_when_intersection_occurs_on_interior ... ok
[INFO] [stdout] test world::tests::no_shadow_when_not_colinear_with_point_and_light ... ok
[INFO] [stdout] test world::tests::no_shadow_when_object_behind_light ... ok
[INFO] [stdout] test world::tests::no_shadow_when_object_behind_point ... ok
[INFO] [stdout] test world::tests::color_with_intersection_behind_ray ... ok
[INFO] [stdout] test world::tests::color_when_ray_hits ... ok
[INFO] [stdout] test world::tests::intersect_world_with_ray ... ok
[INFO] [stdout] test world::tests::shadow_when_object_between_point_and_light ... ok
[INFO] [stdout] test world::tests::precomputing_state_of_intersection ... ok
[INFO] [stdout] test world::tests::shading_an_intersection ... ok
[INFO] [stdout] test world::tests::shading_an_intersection_from_inside ... ok
[INFO] [stdout] test world::tests::shade_hit_given_intersection_in_shadow ... ok
[INFO] [stdout] test camera::tests::render_world_with_camera ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 127 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.04s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "cb9bb9e00fa9c7ea25f93c1defa45d415261bc55c121321ae5303b9fe85195d4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cb9bb9e00fa9c7ea25f93c1defa45d415261bc55c121321ae5303b9fe85195d4", kill_on_drop: false }`
[INFO] [stdout] cb9bb9e00fa9c7ea25f93c1defa45d415261bc55c121321ae5303b9fe85195d4
