[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] db8ad4754445c49e59e9a2f86dfedc2aae96f00b
[INFO] testing dbearden/Ray-Tracer-Challenge against try#ecabaf78506b7a4668d42dc20268c086b93f0fad for pr-87041
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdbearden%2FRay-Tracer-Challenge" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/dbearden/Ray-Tracer-Challenge on toolchain ecabaf78506b7a4668d42dc20268c086b93f0fad
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "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-1/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: "/workspace/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 11d8674091ee8a6d83bb0e4b1b3bd2d461bdd04275abae58bb3cbec76b047152
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "11d8674091ee8a6d83bb0e4b1b3bd2d461bdd04275abae58bb3cbec76b047152", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "11d8674091ee8a6d83bb0e4b1b3bd2d461bdd04275abae58bb3cbec76b047152", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "11d8674091ee8a6d83bb0e4b1b3bd2d461bdd04275abae58bb3cbec76b047152", kill_on_drop: false }`
[INFO] [stdout] 11d8674091ee8a6d83bb0e4b1b3bd2d461bdd04275abae58bb3cbec76b047152
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ab680c058ec75e84d546d6d831c41b6b3dad50ebeeddb5f1ffe5ea103a1fc972
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "ab680c058ec75e84d546d6d831c41b6b3dad50ebeeddb5f1ffe5ea103a1fc972", 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 `const_generics` 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(const_generics)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(incomplete_features)]` on by default
[INFO] [stdout]   = note: see issue #44580 <https://github.com/rust-lang/rust/issues/44580> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `const_evaluatable_checked` is incomplete and may not be safe to use and/or cause compiler crashes
[INFO] [stdout]  --> src/bin/ch6/main.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(const_evaluatable_checked)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: see issue #76560 <https://github.com/rust-lang/rust/issues/76560> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `const_generics` is incomplete and may not be safe to use and/or cause compiler crashes
[INFO] [stdout]  --> src/bin/ch3/main.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(const_generics)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(incomplete_features)]` on by default
[INFO] [stdout]   = note: see issue #44580 <https://github.com/rust-lang/rust/issues/44580> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `const_evaluatable_checked` is incomplete and may not be safe to use and/or cause compiler crashes
[INFO] [stdout]  --> src/bin/ch3/main.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(const_evaluatable_checked)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: see issue #76560 <https://github.com/rust-lang/rust/issues/76560> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `const_generics` is incomplete and may not be safe to use and/or cause compiler crashes
[INFO] [stdout]  --> src/bin/ch4/main.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(const_generics)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(incomplete_features)]` on by default
[INFO] [stdout]   = note: see issue #44580 <https://github.com/rust-lang/rust/issues/44580> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `const_evaluatable_checked` is incomplete and may not be safe to use and/or cause compiler crashes
[INFO] [stdout]  --> src/bin/ch4/main.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(const_evaluatable_checked)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: see issue #76560 <https://github.com/rust-lang/rust/issues/76560> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `const_generics` 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(const_generics)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(incomplete_features)]` on by default
[INFO] [stdout]   = note: see issue #44580 <https://github.com/rust-lang/rust/issues/44580> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `const_evaluatable_checked` is incomplete and may not be safe to use and/or cause compiler crashes
[INFO] [stdout]  --> src/bin/ch8/main.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(const_evaluatable_checked)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: see issue #76560 <https://github.com/rust-lang/rust/issues/76560> for more information
[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: the feature `const_generics` 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(const_generics)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(incomplete_features)]` on by default
[INFO] [stdout]   = note: see issue #44580 <https://github.com/rust-lang/rust/issues/44580> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `FRAC_PI_3`
[INFO] [stdout]   --> src/bin/ch8/main.rs:21:30
[INFO] [stdout]    |
[INFO] [stdout] 21 |     f64::consts::{FRAC_PI_2, FRAC_PI_3, FRAC_PI_4},
[INFO] [stdout]    |                              ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `const_generics` 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(const_generics)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(incomplete_features)]` on by default
[INFO] [stdout]   = note: see issue #44580 <https://github.com/rust-lang/rust/issues/44580> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `const_evaluatable_checked` is incomplete and may not be safe to use and/or cause compiler crashes
[INFO] [stdout]  --> src/bin/ch7/main.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(const_evaluatable_checked)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: see issue #76560 <https://github.com/rust-lang/rust/issues/76560> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `const_evaluatable_checked` is incomplete and may not be safe to use and/or cause compiler crashes
[INFO] [stdout]  --> src/bin/ch9/main.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(const_evaluatable_checked)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: see issue #76560 <https://github.com/rust-lang/rust/issues/76560> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `const_generics` 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(const_generics)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(incomplete_features)]` on by default
[INFO] [stdout]   = note: see issue #44580 <https://github.com/rust-lang/rust/issues/44580> for more information
[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`, `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`, `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: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: the feature `const_generics` 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(const_generics)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(incomplete_features)]` on by default
[INFO] [stdout]   = note: see issue #44580 <https://github.com/rust-lang/rust/issues/44580> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `const_generics` 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(const_generics)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(incomplete_features)]` on by default
[INFO] [stdout]   = note: see issue #44580 <https://github.com/rust-lang/rust/issues/44580> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `const_generics` 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(const_generics)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(incomplete_features)]` on by default
[INFO] [stdout]   = note: see issue #44580 <https://github.com/rust-lang/rust/issues/44580> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `const_evaluatable_checked` is incomplete and may not be safe to use and/or cause compiler crashes
[INFO] [stdout]  --> src/bin/ch13/main.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(const_evaluatable_checked)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: see issue #76560 <https://github.com/rust-lang/rust/issues/76560> for more information
[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: the feature `const_generics` 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(const_generics)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(incomplete_features)]` on by default
[INFO] [stdout]   = note: see issue #44580 <https://github.com/rust-lang/rust/issues/44580> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `const_evaluatable_checked` is incomplete and may not be safe to use and/or cause compiler crashes
[INFO] [stdout]  --> src/bin/ch11/main.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(const_evaluatable_checked)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: see issue #76560 <https://github.com/rust-lang/rust/issues/76560> for more information
[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`, `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`, `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`, `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: 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]    |                                        ^^^^^ help: use `dyn`: `dyn Shape`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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`, `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`, `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`, `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: the feature `const_evaluatable_checked` is incomplete and may not be safe to use and/or cause compiler crashes
[INFO] [stdout]  --> src/bin/ch12/main.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(const_evaluatable_checked)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: see issue #76560 <https://github.com/rust-lang/rust/issues/76560> for more information
[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: unused imports: `cell::RefCell`, `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: 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`, `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: 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`, `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: 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]    |                                        ^^^^^ help: use `dyn`: `dyn Shape`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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`, `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: the feature `const_evaluatable_checked` is incomplete and may not be safe to use and/or cause compiler crashes
[INFO] [stdout]  --> src/bin/ch5/main.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(const_evaluatable_checked)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: see issue #76560 <https://github.com/rust-lang/rust/issues/76560> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `const_evaluatable_checked` is incomplete and may not be safe to use and/or cause compiler crashes
[INFO] [stdout]  --> src/bin/ch10/main.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(const_evaluatable_checked)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: see issue #76560 <https://github.com/rust-lang/rust/issues/76560> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `cell::RefCell`, `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`, `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 imports: `cell::RefCell`, `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`, `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:18:5
[INFO] [stdout]    |
[INFO] [stdout] 18 | use materials::Material;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `FRAC_PI_3`, `FRAC_PI_4`, `FRAC_PI_6`
[INFO] [stdout]   --> src/bin/ch12/main.rs:25:30
[INFO] [stdout]    |
[INFO] [stdout] 25 |     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`, `lights::PointLight`
[INFO] [stdout]   --> src/bin/ch12/main.rs:34:5
[INFO] [stdout]    |
[INFO] [stdout] 34 |     lights::PointLight,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 35 |     pattern::{Checkerboard, Gradient, Pattern, Ring, Stripe},
[INFO] [stdout]    |                             ^^^^^^^^           ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `cell::RefCell`, `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 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`, `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: 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]    |                                        ^^^^^ help: use `dyn`: `dyn Shape`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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`, `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 imports: `cell::RefCell`, `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`, `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 imports: `FRAC_PI_3`, `FRAC_PI_4`, `FRAC_PI_6`
[INFO] [stdout]   --> src/bin/ch11/main.rs:23:30
[INFO] [stdout]    |
[INFO] [stdout] 23 |     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`, `lights::PointLight`
[INFO] [stdout]   --> src/bin/ch11/main.rs:32:5
[INFO] [stdout]    |
[INFO] [stdout] 32 |     lights::PointLight,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 33 |     pattern::{Checkerboard, Gradient, Pattern, Ring, Stripe},
[INFO] [stdout]    |                             ^^^^^^^^           ^^^^  ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `cell::RefCell`, `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`, `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: 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]    |                                        ^^^^^ help: use `dyn`: `dyn Shape`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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: `FRAC_PI_6`
[INFO] [stdout]   --> src/bin/ch10/main.rs:22:52
[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: `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`, `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`, `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`, `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: `materials::Material`
[INFO] [stdout]   --> src/bin/ch13/main.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 18 | use materials::Material;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `FRAC_PI_3`, `FRAC_PI_4`, `FRAC_PI_6`
[INFO] [stdout]   --> src/bin/ch13/main.rs:25:30
[INFO] [stdout]    |
[INFO] [stdout] 25 |     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`, `lights::PointLight`
[INFO] [stdout]   --> src/bin/ch13/main.rs:34:5
[INFO] [stdout]    |
[INFO] [stdout] 34 |     lights::PointLight,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 35 |     pattern::{Checkerboard, Gradient, Pattern, Ring, Stripe},
[INFO] [stdout]    |                             ^^^^^^^^           ^^^^
[INFO] [stdout] 36 |     shape::{Cone, Cylinder},
[INFO] [stdout]    |             ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `dot`
[INFO] [stdout]   --> src/bin/ch1/tuple.rs:79:12
[INFO] [stdout]    |
[INFO] [stdout] 79 |     pub fn dot(&self, other: Self) -> f64 {
[INFO] [stdout]    |            ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `cross`
[INFO] [stdout]   --> src/bin/ch1/tuple.rs:83:12
[INFO] [stdout]    |
[INFO] [stdout] 83 |     pub fn cross(&self, other: Self) -> Self {
[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: associated function is never used: `pixel_at`
[INFO] [stdout]   --> src/bin/ch2/canvas/mod.rs:28:12
[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: struct is never constructed: `Canvas`
[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 function is never used: `new`
[INFO] [stdout]   --> src/bin/ch3/canvas/mod.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout] 16 |     pub fn new(width: usize, height: usize) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `write`
[INFO] [stdout]   --> src/bin/ch3/canvas/mod.rs:24:12
[INFO] [stdout]    |
[INFO] [stdout] 24 |     pub fn write(&mut self, x: usize, y: usize, color: Color) {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `pixel_at`
[INFO] [stdout]   --> src/bin/ch3/canvas/mod.rs:28:12
[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 function is never used: `to_ppm`
[INFO] [stdout]   --> src/bin/ch3/canvas/mod.rs:32:12
[INFO] [stdout]    |
[INFO] [stdout] 32 |     pub fn to_ppm(&self, filename: &str) -> io::Result<()> {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated constant is never used: `IDENTITY`
[INFO] [stdout]   --> src/bin/ch3/matrix.rs:90:5
[INFO] [stdout]    |
[INFO] [stdout] 90 | /     pub const IDENTITY: Matrix<3> = Matrix {
[INFO] [stdout] 91 | |         data: [[1.0, 0.0, 0.0], [0.0, 1.0, 0.0], [0.0, 0.0, 1.0]],
[INFO] [stdout] 92 | |     };
[INFO] [stdout]    | |______^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_invertible`
[INFO] [stdout]    --> src/bin/ch3/matrix.rs:129:12
[INFO] [stdout]     |
[INFO] [stdout] 129 |     pub fn is_invertible(&self) -> bool {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `inverse`
[INFO] [stdout]    --> src/bin/ch3/matrix.rs:132:12
[INFO] [stdout]     |
[INFO] [stdout] 132 |     pub fn inverse(&self) -> Self {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated constant is never used: `IDENTITY`
[INFO] [stdout]    --> src/bin/ch3/matrix.rs:147:5
[INFO] [stdout]     |
[INFO] [stdout] 147 | /     pub const IDENTITY: Matrix<2> = Matrix {
[INFO] [stdout] 148 | |         data: [[1.0, 0.0], [0.0, 1.0]],
[INFO] [stdout] 149 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `minor`
[INFO] [stdout]    --> src/bin/ch3/matrix.rs:150:12
[INFO] [stdout]     |
[INFO] [stdout] 150 |     pub fn minor(&self, row: usize, col: usize) -> f64 {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `cofactor`
[INFO] [stdout]    --> src/bin/ch3/matrix.rs:153:12
[INFO] [stdout]     |
[INFO] [stdout] 153 |     pub fn cofactor(&self, row: usize, col: usize) -> f64 {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_invertible`
[INFO] [stdout]    --> src/bin/ch3/matrix.rs:159:12
[INFO] [stdout]     |
[INFO] [stdout] 159 |     pub fn is_invertible(&self) -> bool {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `inverse`
[INFO] [stdout]    --> src/bin/ch3/matrix.rs:162:12
[INFO] [stdout]     |
[INFO] [stdout] 162 |     pub fn inverse(&self) -> Self {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `pixel_at`
[INFO] [stdout]   --> src/bin/ch4/canvas/mod.rs:28:12
[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 function is never used: `transpose`
[INFO] [stdout]   --> src/bin/ch4/matrix.rs:18:12
[INFO] [stdout]    |
[INFO] [stdout] 18 |     pub fn transpose(&self) -> Self {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated constant is never used: `IDENTITY`
[INFO] [stdout]   --> src/bin/ch4/matrix.rs:30:5
[INFO] [stdout]    |
[INFO] [stdout] 30 | /     pub const IDENTITY: Matrix<4> = Matrix {
[INFO] [stdout] 31 | |         data: [
[INFO] [stdout] 32 | |             [1.0, 0.0, 0.0, 0.0],
[INFO] [stdout] 33 | |             [0.0, 1.0, 0.0, 0.0],
[INFO] [stdout] ...  |
[INFO] [stdout] 36 | |         ],
[INFO] [stdout] 37 | |     };
[INFO] [stdout]    | |______^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `submatrix`
[INFO] [stdout]   --> src/bin/ch4/matrix.rs:38:12
[INFO] [stdout]    |
[INFO] [stdout] 38 |     pub fn submatrix(&self, row: usize, col: usize) -> Matrix<3> {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `minor`
[INFO] [stdout]   --> src/bin/ch4/matrix.rs:60:12
[INFO] [stdout]    |
[INFO] [stdout] 60 |     pub fn minor(&self, row: usize, col: usize) -> f64 {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `cofactor`
[INFO] [stdout]   --> src/bin/ch4/matrix.rs:63:12
[INFO] [stdout]    |
[INFO] [stdout] 63 |     pub fn cofactor(&self, row: usize, col: usize) -> f64 {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `determinant`
[INFO] [stdout]   --> src/bin/ch4/matrix.rs:66:12
[INFO] [stdout]    |
[INFO] [stdout] 66 |     pub fn determinant(&self) -> f64 {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_invertible`
[INFO] [stdout]   --> src/bin/ch4/matrix.rs:74:12
[INFO] [stdout]    |
[INFO] [stdout] 74 |     pub fn is_invertible(&self) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `inverse`
[INFO] [stdout]   --> src/bin/ch4/matrix.rs:77:12
[INFO] [stdout]    |
[INFO] [stdout] 77 |     pub fn inverse(&self) -> Self {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated constant is never used: `IDENTITY`
[INFO] [stdout]   --> src/bin/ch4/matrix.rs:92:5
[INFO] [stdout]    |
[INFO] [stdout] 92 | /     pub const IDENTITY: Matrix<3> = Matrix {
[INFO] [stdout] 93 | |         data: [[1.0, 0.0, 0.0], [0.0, 1.0, 0.0], [0.0, 0.0, 1.0]],
[INFO] [stdout] 94 | |     };
[INFO] [stdout]    | |______^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `submatrix`
[INFO] [stdout]   --> src/bin/ch4/matrix.rs:95:12
[INFO] [stdout]    |
[INFO] [stdout] 95 |     pub fn submatrix(&self, row: usize, col: usize) -> Matrix<2> {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `minor`
[INFO] [stdout]    --> src/bin/ch4/matrix.rs:117:12
[INFO] [stdout]     |
[INFO] [stdout] 117 |     pub fn minor(&self, row: usize, col: usize) -> f64 {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `cofactor`
[INFO] [stdout]    --> src/bin/ch4/matrix.rs:120:12
[INFO] [stdout]     |
[INFO] [stdout] 120 |     pub fn cofactor(&self, row: usize, col: usize) -> f64 {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `determinant`
[INFO] [stdout]    --> src/bin/ch4/matrix.rs:123:12
[INFO] [stdout]     |
[INFO] [stdout] 123 |     pub fn determinant(&self) -> f64 {
[INFO] [stdout]     |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_invertible`
[INFO] [stdout]    --> src/bin/ch4/matrix.rs:131:12
[INFO] [stdout]     |
[INFO] [stdout] 131 |     pub fn is_invertible(&self) -> bool {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `inverse`
[INFO] [stdout]    --> src/bin/ch4/matrix.rs:134:12
[INFO] [stdout]     |
[INFO] [stdout] 134 |     pub fn inverse(&self) -> Self {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated constant is never used: `IDENTITY`
[INFO] [stdout]    --> src/bin/ch4/matrix.rs:149:5
[INFO] [stdout]     |
[INFO] [stdout] 149 | /     pub const IDENTITY: Matrix<2> = Matrix {
[INFO] [stdout] 150 | |         data: [[1.0, 0.0], [0.0, 1.0]],
[INFO] [stdout] 151 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `minor`
[INFO] [stdout]    --> src/bin/ch4/matrix.rs:152:12
[INFO] [stdout]     |
[INFO] [stdout] 152 |     pub fn minor(&self, row: usize, col: usize) -> f64 {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `cofactor`
[INFO] [stdout]    --> src/bin/ch4/matrix.rs:155:12
[INFO] [stdout]     |
[INFO] [stdout] 155 |     pub fn cofactor(&self, row: usize, col: usize) -> f64 {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `determinant`
[INFO] [stdout]    --> src/bin/ch4/matrix.rs:158:12
[INFO] [stdout]     |
[INFO] [stdout] 158 |     pub fn determinant(&self) -> f64 {
[INFO] [stdout]     |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_invertible`
[INFO] [stdout]    --> src/bin/ch4/matrix.rs:161:12
[INFO] [stdout]     |
[INFO] [stdout] 161 |     pub fn is_invertible(&self) -> bool {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `inverse`
[INFO] [stdout]    --> src/bin/ch4/matrix.rs:164:12
[INFO] [stdout]     |
[INFO] [stdout] 164 |     pub fn inverse(&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: 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: associated function is never used: `pixel_at`
[INFO] [stdout]   --> src/bin/ch5/canvas/mod.rs:28:12
[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 function is never used: `transpose`
[INFO] [stdout]   --> src/bin/ch5/matrix.rs:18:12
[INFO] [stdout]    |
[INFO] [stdout] 18 |     pub fn transpose(&self) -> Self {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated constant is never used: `IDENTITY`
[INFO] [stdout]   --> src/bin/ch5/matrix.rs:92:5
[INFO] [stdout]    |
[INFO] [stdout] 92 | /     pub const IDENTITY: Matrix<3> = Matrix {
[INFO] [stdout] 93 | |         data: [[1.0, 0.0, 0.0], [0.0, 1.0, 0.0], [0.0, 0.0, 1.0]],
[INFO] [stdout] 94 | |     };
[INFO] [stdout]    | |______^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_invertible`
[INFO] [stdout]    --> src/bin/ch5/matrix.rs:131:12
[INFO] [stdout]     |
[INFO] [stdout] 131 |     pub fn is_invertible(&self) -> bool {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `inverse`
[INFO] [stdout]    --> src/bin/ch5/matrix.rs:134:12
[INFO] [stdout]     |
[INFO] [stdout] 134 |     pub fn inverse(&self) -> Self {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated constant is never used: `IDENTITY`
[INFO] [stdout]    --> src/bin/ch5/matrix.rs:149:5
[INFO] [stdout]     |
[INFO] [stdout] 149 | /     pub const IDENTITY: Matrix<2> = Matrix {
[INFO] [stdout] 150 | |         data: [[1.0, 0.0], [0.0, 1.0]],
[INFO] [stdout] 151 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `minor`
[INFO] [stdout]    --> src/bin/ch5/matrix.rs:152:12
[INFO] [stdout]     |
[INFO] [stdout] 152 |     pub fn minor(&self, row: usize, col: usize) -> f64 {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `cofactor`
[INFO] [stdout]    --> src/bin/ch5/matrix.rs:155:12
[INFO] [stdout]     |
[INFO] [stdout] 155 |     pub fn cofactor(&self, row: usize, col: usize) -> f64 {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_invertible`
[INFO] [stdout]    --> src/bin/ch5/matrix.rs:161:12
[INFO] [stdout]     |
[INFO] [stdout] 161 |     pub fn is_invertible(&self) -> bool {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `inverse`
[INFO] [stdout]    --> src/bin/ch5/matrix.rs:164:12
[INFO] [stdout]     |
[INFO] [stdout] 164 |     pub fn inverse(&self) -> Self {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `position`
[INFO] [stdout]   --> src/bin/ch5/ray.rs:20:12
[INFO] [stdout]    |
[INFO] [stdout] 20 |     pub fn position(&self, t: f64) -> Point {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `intersections`
[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: 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/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`
[INFO] [stdout]   --> src/bin/ch11/main.rs:33:39
[INFO] [stdout]    |
[INFO] [stdout] 33 |     pattern::{Checkerboard, Gradient, Pattern, Ring, Stripe},
[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: 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: `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: variable does not need to be mutable
[INFO] [stdout]   --> src/bin/ch11/main.rs:47:9
[INFO] [stdout]    |
[INFO] [stdout] 47 |     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: associated function is never used: `pixel_at`
[INFO] [stdout]   --> src/bin/ch8/canvas/mod.rs:28:12
[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 constant is never used: `IDENTITY`
[INFO] [stdout]   --> src/bin/ch8/matrix.rs:92:5
[INFO] [stdout]    |
[INFO] [stdout] 92 | /     pub const IDENTITY: Matrix<3> = Matrix {
[INFO] [stdout] 93 | |         data: [[1.0, 0.0, 0.0], [0.0, 1.0, 0.0], [0.0, 0.0, 1.0]],
[INFO] [stdout] 94 | |     };
[INFO] [stdout]    | |______^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_invertible`
[INFO] [stdout]    --> src/bin/ch8/matrix.rs:131:12
[INFO] [stdout]     |
[INFO] [stdout] 131 |     pub fn is_invertible(&self) -> bool {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `inverse`
[INFO] [stdout]    --> src/bin/ch8/matrix.rs:134:12
[INFO] [stdout]     |
[INFO] [stdout] 134 |     pub fn inverse(&self) -> Self {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated constant is never used: `IDENTITY`
[INFO] [stdout]    --> src/bin/ch8/matrix.rs:149:5
[INFO] [stdout]     |
[INFO] [stdout] 149 | /     pub const IDENTITY: Matrix<2> = Matrix {
[INFO] [stdout] 150 | |         data: [[1.0, 0.0], [0.0, 1.0]],
[INFO] [stdout] 151 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `minor`
[INFO] [stdout]    --> src/bin/ch8/matrix.rs:152:12
[INFO] [stdout]     |
[INFO] [stdout] 152 |     pub fn minor(&self, row: usize, col: usize) -> f64 {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `cofactor`
[INFO] [stdout]    --> src/bin/ch8/matrix.rs:155:12
[INFO] [stdout]     |
[INFO] [stdout] 155 |     pub fn cofactor(&self, row: usize, col: usize) -> f64 {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_invertible`
[INFO] [stdout]    --> src/bin/ch8/matrix.rs:161:12
[INFO] [stdout]     |
[INFO] [stdout] 161 |     pub fn is_invertible(&self) -> bool {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `inverse`
[INFO] [stdout]    --> src/bin/ch8/matrix.rs:164:12
[INFO] [stdout]     |
[INFO] [stdout] 164 |     pub fn inverse(&self) -> Self {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `set_transform`
[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: associated function is never used: `new`
[INFO] [stdout]   --> src/bin/ch8/world.rs:20:12
[INFO] [stdout]    |
[INFO] [stdout] 20 |     pub fn new() -> Self {
[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/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: 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 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: 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: associated function is never used: `pixel_at`
[INFO] [stdout]   --> src/bin/ch6/canvas/mod.rs:28:12
[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 constant is never used: `IDENTITY`
[INFO] [stdout]   --> src/bin/ch6/matrix.rs:92:5
[INFO] [stdout]    |
[INFO] [stdout] 92 | /     pub const IDENTITY: Matrix<3> = Matrix {
[INFO] [stdout] 93 | |         data: [[1.0, 0.0, 0.0], [0.0, 1.0, 0.0], [0.0, 0.0, 1.0]],
[INFO] [stdout] 94 | |     };
[INFO] [stdout]    | |______^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_invertible`
[INFO] [stdout]    --> src/bin/ch6/matrix.rs:131:12
[INFO] [stdout]     |
[INFO] [stdout] 131 |     pub fn is_invertible(&self) -> bool {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `inverse`
[INFO] [stdout]    --> src/bin/ch6/matrix.rs:134:12
[INFO] [stdout]     |
[INFO] [stdout] 134 |     pub fn inverse(&self) -> Self {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated constant is never used: `IDENTITY`
[INFO] [stdout]    --> src/bin/ch6/matrix.rs:149:5
[INFO] [stdout]     |
[INFO] [stdout] 149 | /     pub const IDENTITY: Matrix<2> = Matrix {
[INFO] [stdout] 150 | |         data: [[1.0, 0.0], [0.0, 1.0]],
[INFO] [stdout] 151 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `minor`
[INFO] [stdout]    --> src/bin/ch6/matrix.rs:152:12
[INFO] [stdout]     |
[INFO] [stdout] 152 |     pub fn minor(&self, row: usize, col: usize) -> f64 {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `cofactor`
[INFO] [stdout]    --> src/bin/ch6/matrix.rs:155:12
[INFO] [stdout]     |
[INFO] [stdout] 155 |     pub fn cofactor(&self, row: usize, col: usize) -> f64 {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_invertible`
[INFO] [stdout]    --> src/bin/ch6/matrix.rs:161:12
[INFO] [stdout]     |
[INFO] [stdout] 161 |     pub fn is_invertible(&self) -> bool {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `inverse`
[INFO] [stdout]    --> src/bin/ch6/matrix.rs:164:12
[INFO] [stdout]     |
[INFO] [stdout] 164 |     pub fn inverse(&self) -> Self {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `intersections`
[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 is never used: `set_transform`
[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: variable does not need to be mutable
[INFO] [stdout]   --> src/bin/ch10/main.rs:88:9
[INFO] [stdout]    |
[INFO] [stdout] 88 |     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 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 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 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: 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: `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 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/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 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: 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: associated function is never used: `pixel_at`
[INFO] [stdout]   --> src/bin/ch7/canvas/mod.rs:28:12
[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 constant is never used: `IDENTITY`
[INFO] [stdout]   --> src/bin/ch7/matrix.rs:92:5
[INFO] [stdout]    |
[INFO] [stdout] 92 | /     pub const IDENTITY: Matrix<3> = Matrix {
[INFO] [stdout] 93 | |         data: [[1.0, 0.0, 0.0], [0.0, 1.0, 0.0], [0.0, 0.0, 1.0]],
[INFO] [stdout] 94 | |     };
[INFO] [stdout]    | |______^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_invertible`
[INFO] [stdout]    --> src/bin/ch7/matrix.rs:131:12
[INFO] [stdout]     |
[INFO] [stdout] 131 |     pub fn is_invertible(&self) -> bool {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `inverse`
[INFO] [stdout]    --> src/bin/ch7/matrix.rs:134:12
[INFO] [stdout]     |
[INFO] [stdout] 134 |     pub fn inverse(&self) -> Self {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated constant is never used: `IDENTITY`
[INFO] [stdout]    --> src/bin/ch7/matrix.rs:149:5
[INFO] [stdout]     |
[INFO] [stdout] 149 | /     pub const IDENTITY: Matrix<2> = Matrix {
[INFO] [stdout] 150 | |         data: [[1.0, 0.0], [0.0, 1.0]],
[INFO] [stdout] 151 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `minor`
[INFO] [stdout]    --> src/bin/ch7/matrix.rs:152:12
[INFO] [stdout]     |
[INFO] [stdout] 152 |     pub fn minor(&self, row: usize, col: usize) -> f64 {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `cofactor`
[INFO] [stdout]    --> src/bin/ch7/matrix.rs:155:12
[INFO] [stdout]     |
[INFO] [stdout] 155 |     pub fn cofactor(&self, row: usize, col: usize) -> f64 {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_invertible`
[INFO] [stdout]    --> src/bin/ch7/matrix.rs:161:12
[INFO] [stdout]     |
[INFO] [stdout] 161 |     pub fn is_invertible(&self) -> bool {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `inverse`
[INFO] [stdout]    --> src/bin/ch7/matrix.rs:164:12
[INFO] [stdout]     |
[INFO] [stdout] 164 |     pub fn inverse(&self) -> Self {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `set_transform`
[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: associated function is never used: `new`
[INFO] [stdout]   --> src/bin/ch7/world.rs:19:12
[INFO] [stdout]    |
[INFO] [stdout] 19 |     pub fn new() -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `pixel_at`
[INFO] [stdout]   --> src/bin/ch9/canvas/mod.rs:28:12
[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 constant is never used: `IDENTITY`
[INFO] [stdout]    --> src/bin/ch9/matrix.rs:98:5
[INFO] [stdout]     |
[INFO] [stdout] 98  | /     pub const IDENTITY: Matrix<3> = Matrix {
[INFO] [stdout] 99  | |         data: [[1.0, 0.0, 0.0], [0.0, 1.0, 0.0], [0.0, 0.0, 1.0]],
[INFO] [stdout] 100 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_invertible`
[INFO] [stdout]    --> src/bin/ch9/matrix.rs:137:12
[INFO] [stdout]     |
[INFO] [stdout] 137 |     pub fn is_invertible(&self) -> bool {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `inverse`
[INFO] [stdout]    --> src/bin/ch9/matrix.rs:140:12
[INFO] [stdout]     |
[INFO] [stdout] 140 |     pub fn inverse(&self) -> Self {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated constant is never used: `IDENTITY`
[INFO] [stdout]    --> src/bin/ch9/matrix.rs:155:5
[INFO] [stdout]     |
[INFO] [stdout] 155 | /     pub const IDENTITY: Matrix<2> = Matrix {
[INFO] [stdout] 156 | |         data: [[1.0, 0.0], [0.0, 1.0]],
[INFO] [stdout] 157 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `minor`
[INFO] [stdout]    --> src/bin/ch9/matrix.rs:158:12
[INFO] [stdout]     |
[INFO] [stdout] 158 |     pub fn minor(&self, row: usize, col: usize) -> f64 {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `cofactor`
[INFO] [stdout]    --> src/bin/ch9/matrix.rs:161:12
[INFO] [stdout]     |
[INFO] [stdout] 161 |     pub fn cofactor(&self, row: usize, col: usize) -> f64 {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_invertible`
[INFO] [stdout]    --> src/bin/ch9/matrix.rs:167:12
[INFO] [stdout]     |
[INFO] [stdout] 167 |     pub fn is_invertible(&self) -> bool {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `inverse`
[INFO] [stdout]    --> src/bin/ch9/matrix.rs:170:12
[INFO] [stdout]     |
[INFO] [stdout] 170 |     pub fn inverse(&self) -> Self {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/bin/ch9/world.rs:20:12
[INFO] [stdout]    |
[INFO] [stdout] 20 |     pub fn new() -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `pixel_at`
[INFO] [stdout]   --> src/bin/ch11/canvas/mod.rs:28:12
[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 constant is never used: `IDENTITY`
[INFO] [stdout]    --> src/bin/ch11/matrix.rs:98:5
[INFO] [stdout]     |
[INFO] [stdout] 98  | /     pub const IDENTITY: Matrix<3> = Matrix {
[INFO] [stdout] 99  | |         data: [[1.0, 0.0, 0.0], [0.0, 1.0, 0.0], [0.0, 0.0, 1.0]],
[INFO] [stdout] 100 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_invertible`
[INFO] [stdout]    --> src/bin/ch11/matrix.rs:137:12
[INFO] [stdout]     |
[INFO] [stdout] 137 |     pub fn is_invertible(&self) -> bool {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `pixel_at`
[INFO] [stdout]   --> src/bin/ch10/canvas/mod.rs:28:12
[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 constant is never used: `IDENTITY`
[INFO] [stdout]    --> src/bin/ch10/matrix.rs:98:5
[INFO] [stdout]     |
[INFO] [stdout] 98  | /     pub const IDENTITY: Matrix<3> = Matrix {
[INFO] [stdout] 99  | |         data: [[1.0, 0.0, 0.0], [0.0, 1.0, 0.0], [0.0, 0.0, 1.0]],
[INFO] [stdout] 100 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_invertible`
[INFO] [stdout]    --> src/bin/ch10/matrix.rs:137:12
[INFO] [stdout]     |
[INFO] [stdout] 137 |     pub fn is_invertible(&self) -> bool {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `inverse`
[INFO] [stdout]    --> src/bin/ch10/matrix.rs:140:12
[INFO] [stdout]     |
[INFO] [stdout] 140 |     pub fn inverse(&self) -> Self {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated constant is never used: `IDENTITY`
[INFO] [stdout]    --> src/bin/ch10/matrix.rs:155:5
[INFO] [stdout]     |
[INFO] [stdout] 155 | /     pub const IDENTITY: Matrix<2> = Matrix {
[INFO] [stdout] 156 | |         data: [[1.0, 0.0], [0.0, 1.0]],
[INFO] [stdout] 157 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `minor`
[INFO] [stdout]    --> src/bin/ch10/matrix.rs:158:12
[INFO] [stdout]     |
[INFO] [stdout] 158 |     pub fn minor(&self, row: usize, col: usize) -> f64 {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `cofactor`
[INFO] [stdout]    --> src/bin/ch10/matrix.rs:161:12
[INFO] [stdout]     |
[INFO] [stdout] 161 |     pub fn cofactor(&self, row: usize, col: usize) -> f64 {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_invertible`
[INFO] [stdout]    --> src/bin/ch10/matrix.rs:167:12
[INFO] [stdout]     |
[INFO] [stdout] 167 |     pub fn is_invertible(&self) -> bool {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `inverse`
[INFO] [stdout]    --> src/bin/ch10/matrix.rs:170:12
[INFO] [stdout]     |
[INFO] [stdout] 170 |     pub fn inverse(&self) -> Self {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/bin/ch10/world.rs:20:12
[INFO] [stdout]    |
[INFO] [stdout] 20 |     pub fn new() -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `inverse`
[INFO] [stdout]    --> src/bin/ch11/matrix.rs:140:12
[INFO] [stdout]     |
[INFO] [stdout] 140 |     pub fn inverse(&self) -> Self {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated constant is never used: `IDENTITY`
[INFO] [stdout]    --> src/bin/ch11/matrix.rs:155:5
[INFO] [stdout]     |
[INFO] [stdout] 155 | /     pub const IDENTITY: Matrix<2> = Matrix {
[INFO] [stdout] 156 | |         data: [[1.0, 0.0], [0.0, 1.0]],
[INFO] [stdout] 157 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `minor`
[INFO] [stdout]    --> src/bin/ch11/matrix.rs:158:12
[INFO] [stdout]     |
[INFO] [stdout] 158 |     pub fn minor(&self, row: usize, col: usize) -> f64 {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `cofactor`
[INFO] [stdout]    --> src/bin/ch11/matrix.rs:161:12
[INFO] [stdout]     |
[INFO] [stdout] 161 |     pub fn cofactor(&self, row: usize, col: usize) -> f64 {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_invertible`
[INFO] [stdout]    --> src/bin/ch11/matrix.rs:167:12
[INFO] [stdout]     |
[INFO] [stdout] 167 |     pub fn is_invertible(&self) -> bool {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `inverse`
[INFO] [stdout]    --> src/bin/ch11/matrix.rs:170:12
[INFO] [stdout]     |
[INFO] [stdout] 170 |     pub fn inverse(&self) -> Self {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/bin/ch11/pattern/gradient.rs:15:12
[INFO] [stdout]    |
[INFO] [stdout] 15 |     pub fn new(a: Color, b: Color) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/bin/ch11/pattern/ring.rs:15:12
[INFO] [stdout]    |
[INFO] [stdout] 15 |     pub fn new(a: Color, b: Color) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/bin/ch11/pattern/stripe.rs:21:12
[INFO] [stdout]    |
[INFO] [stdout] 21 |     pub fn new(a: Color, b: Color) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `magnitude`
[INFO] [stdout]   --> src/bin/ch11/tuple/color.rs:26:12
[INFO] [stdout]    |
[INFO] [stdout] 26 |     pub fn magnitude(&self) -> f64 {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/bin/ch11/world.rs:20:12
[INFO] [stdout]    |
[INFO] [stdout] 20 |     pub fn new() -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `pixel_at`
[INFO] [stdout]   --> src/bin/ch12/canvas/mod.rs:28:12
[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 constant is never used: `IDENTITY`
[INFO] [stdout]    --> src/bin/ch12/matrix.rs:98:5
[INFO] [stdout]     |
[INFO] [stdout] 98  | /     pub const IDENTITY: Matrix<3> = Matrix {
[INFO] [stdout] 99  | |         data: [[1.0, 0.0, 0.0], [0.0, 1.0, 0.0], [0.0, 0.0, 1.0]],
[INFO] [stdout] 100 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_invertible`
[INFO] [stdout]    --> src/bin/ch12/matrix.rs:137:12
[INFO] [stdout]     |
[INFO] [stdout] 137 |     pub fn is_invertible(&self) -> bool {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `inverse`
[INFO] [stdout]    --> src/bin/ch12/matrix.rs:140:12
[INFO] [stdout]     |
[INFO] [stdout] 140 |     pub fn inverse(&self) -> Self {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated constant is never used: `IDENTITY`
[INFO] [stdout]    --> src/bin/ch12/matrix.rs:155:5
[INFO] [stdout]     |
[INFO] [stdout] 155 | /     pub const IDENTITY: Matrix<2> = Matrix {
[INFO] [stdout] 156 | |         data: [[1.0, 0.0], [0.0, 1.0]],
[INFO] [stdout] 157 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `minor`
[INFO] [stdout]    --> src/bin/ch12/matrix.rs:158:12
[INFO] [stdout]     |
[INFO] [stdout] 158 |     pub fn minor(&self, row: usize, col: usize) -> f64 {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `cofactor`
[INFO] [stdout]    --> src/bin/ch12/matrix.rs:161:12
[INFO] [stdout]     |
[INFO] [stdout] 161 |     pub fn cofactor(&self, row: usize, col: usize) -> f64 {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_invertible`
[INFO] [stdout]    --> src/bin/ch12/matrix.rs:167:12
[INFO] [stdout]     |
[INFO] [stdout] 167 |     pub fn is_invertible(&self) -> bool {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `inverse`
[INFO] [stdout]    --> src/bin/ch12/matrix.rs:170:12
[INFO] [stdout]     |
[INFO] [stdout] 170 |     pub fn inverse(&self) -> Self {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/bin/ch12/pattern/gradient.rs:15:12
[INFO] [stdout]    |
[INFO] [stdout] 15 |     pub fn new(a: Color, b: Color) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/bin/ch12/pattern/ring.rs:15:12
[INFO] [stdout]    |
[INFO] [stdout] 15 |     pub fn new(a: Color, b: Color) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `magnitude`
[INFO] [stdout]   --> src/bin/ch12/tuple/color.rs:26:12
[INFO] [stdout]    |
[INFO] [stdout] 26 |     pub fn magnitude(&self) -> f64 {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/bin/ch12/world.rs:20:12
[INFO] [stdout]    |
[INFO] [stdout] 20 |     pub fn new() -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `float_cmp`
[INFO] [stdout]    --> src/bin/ch12/main.rs:145:4
[INFO] [stdout]     |
[INFO] [stdout] 145 | fn float_cmp(first: &f64, second: &f64) -> std::cmp::Ordering {
[INFO] [stdout]     |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `pixel_at`
[INFO] [stdout]   --> src/bin/ch13/canvas/mod.rs:28:12
[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 constant is never used: `IDENTITY`
[INFO] [stdout]    --> src/bin/ch13/matrix.rs:98:5
[INFO] [stdout]     |
[INFO] [stdout] 98  | /     pub const IDENTITY: Matrix<3> = Matrix {
[INFO] [stdout] 99  | |         data: [[1.0, 0.0, 0.0], [0.0, 1.0, 0.0], [0.0, 0.0, 1.0]],
[INFO] [stdout] 100 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_invertible`
[INFO] [stdout]    --> src/bin/ch13/matrix.rs:137:12
[INFO] [stdout]     |
[INFO] [stdout] 137 |     pub fn is_invertible(&self) -> bool {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `inverse`
[INFO] [stdout]    --> src/bin/ch13/matrix.rs:140:12
[INFO] [stdout]     |
[INFO] [stdout] 140 |     pub fn inverse(&self) -> Self {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated constant is never used: `IDENTITY`
[INFO] [stdout]    --> src/bin/ch13/matrix.rs:155:5
[INFO] [stdout]     |
[INFO] [stdout] 155 | /     pub const IDENTITY: Matrix<2> = Matrix {
[INFO] [stdout] 156 | |         data: [[1.0, 0.0], [0.0, 1.0]],
[INFO] [stdout] 157 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `minor`
[INFO] [stdout]    --> src/bin/ch13/matrix.rs:158:12
[INFO] [stdout]     |
[INFO] [stdout] 158 |     pub fn minor(&self, row: usize, col: usize) -> f64 {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `cofactor`
[INFO] [stdout]    --> src/bin/ch13/matrix.rs:161:12
[INFO] [stdout]     |
[INFO] [stdout] 161 |     pub fn cofactor(&self, row: usize, col: usize) -> f64 {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_invertible`
[INFO] [stdout]    --> src/bin/ch13/matrix.rs:167:12
[INFO] [stdout]     |
[INFO] [stdout] 167 |     pub fn is_invertible(&self) -> bool {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `inverse`
[INFO] [stdout]    --> src/bin/ch13/matrix.rs:170:12
[INFO] [stdout]     |
[INFO] [stdout] 170 |     pub fn inverse(&self) -> Self {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/bin/ch13/pattern/gradient.rs:15:12
[INFO] [stdout]    |
[INFO] [stdout] 15 |     pub fn new(a: Color, b: Color) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/bin/ch13/pattern/ring.rs:15:12
[INFO] [stdout]    |
[INFO] [stdout] 15 |     pub fn new(a: Color, b: Color) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/bin/ch13/shape/cone.rs:31:12
[INFO] [stdout]    |
[INFO] [stdout] 31 |     pub fn new(id: usize) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `magnitude`
[INFO] [stdout]   --> src/bin/ch13/tuple/color.rs:26:12
[INFO] [stdout]    |
[INFO] [stdout] 26 |     pub fn magnitude(&self) -> f64 {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/bin/ch13/world.rs:20:12
[INFO] [stdout]    |
[INFO] [stdout] 20 |     pub fn new() -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `float_cmp`
[INFO] [stdout]    --> src/bin/ch13/main.rs:161:4
[INFO] [stdout]     |
[INFO] [stdout] 161 | fn float_cmp(first: &f64, second: &f64) -> std::cmp::Ordering {
[INFO] [stdout]     |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 15 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 24 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 14 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 13 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 15 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 23 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 13 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 36 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 42 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 44 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 49 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 21.74s
[INFO] running `Command { std: "docker" "inspect" "ab680c058ec75e84d546d6d831c41b6b3dad50ebeeddb5f1ffe5ea103a1fc972", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ab680c058ec75e84d546d6d831c41b6b3dad50ebeeddb5f1ffe5ea103a1fc972", kill_on_drop: false }`
[INFO] [stdout] ab680c058ec75e84d546d6d831c41b6b3dad50ebeeddb5f1ffe5ea103a1fc972
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5f173a044350c84a4d2a7706f1e6e92c5d37a58bda72777e4c10acf186fb73f1
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "5f173a044350c84a4d2a7706f1e6e92c5d37a58bda72777e4c10acf186fb73f1", kill_on_drop: false }`
[INFO] [stderr]    Compiling ray_tracer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the feature `const_generics` is incomplete and may not be safe to use and/or cause compiler crashes
[INFO] [stdout]  --> src/bin/ch3/main.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(const_generics)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(incomplete_features)]` on by default
[INFO] [stdout]   = note: see issue #44580 <https://github.com/rust-lang/rust/issues/44580> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `const_evaluatable_checked` is incomplete and may not be safe to use and/or cause compiler crashes
[INFO] [stdout]  --> src/bin/ch3/main.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(const_evaluatable_checked)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: see issue #76560 <https://github.com/rust-lang/rust/issues/76560> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `const_generics` 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(const_generics)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(incomplete_features)]` on by default
[INFO] [stdout]   = note: see issue #44580 <https://github.com/rust-lang/rust/issues/44580> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `const_evaluatable_checked` is incomplete and may not be safe to use and/or cause compiler crashes
[INFO] [stdout]  --> src/bin/ch5/main.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(const_evaluatable_checked)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: see issue #76560 <https://github.com/rust-lang/rust/issues/76560> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `const_generics` is incomplete and may not be safe to use and/or cause compiler crashes
[INFO] [stdout]  --> src/bin/ch4/main.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(const_generics)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(incomplete_features)]` on by default
[INFO] [stdout]   = note: see issue #44580 <https://github.com/rust-lang/rust/issues/44580> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `const_evaluatable_checked` is incomplete and may not be safe to use and/or cause compiler crashes
[INFO] [stdout]  --> src/bin/ch4/main.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(const_evaluatable_checked)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: see issue #76560 <https://github.com/rust-lang/rust/issues/76560> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `const_generics` 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(const_generics)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(incomplete_features)]` on by default
[INFO] [stdout]   = note: see issue #44580 <https://github.com/rust-lang/rust/issues/44580> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `const_evaluatable_checked` is incomplete and may not be safe to use and/or cause compiler crashes
[INFO] [stdout]  --> src/bin/ch6/main.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(const_evaluatable_checked)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: see issue #76560 <https://github.com/rust-lang/rust/issues/76560> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `dot`
[INFO] [stdout]   --> src/bin/ch1/tuple.rs:79:12
[INFO] [stdout]    |
[INFO] [stdout] 79 |     pub fn dot(&self, other: Self) -> f64 {
[INFO] [stdout]    |            ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `cross`
[INFO] [stdout]   --> src/bin/ch1/tuple.rs:83:12
[INFO] [stdout]    |
[INFO] [stdout] 83 |     pub fn cross(&self, other: Self) -> Self {
[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: the feature `const_generics` 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(const_generics)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(incomplete_features)]` on by default
[INFO] [stdout]   = note: see issue #44580 <https://github.com/rust-lang/rust/issues/44580> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `const_evaluatable_checked` is incomplete and may not be safe to use and/or cause compiler crashes
[INFO] [stdout]  --> src/bin/ch8/main.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(const_evaluatable_checked)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: see issue #76560 <https://github.com/rust-lang/rust/issues/76560> for more information
[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:21:30
[INFO] [stdout]    |
[INFO] [stdout] 21 |     f64::consts::{FRAC_PI_2, FRAC_PI_3, FRAC_PI_4},
[INFO] [stdout]    |                              ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `const_generics` 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(const_generics)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(incomplete_features)]` on by default
[INFO] [stdout]   = note: see issue #44580 <https://github.com/rust-lang/rust/issues/44580> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `const_evaluatable_checked` is incomplete and may not be safe to use and/or cause compiler crashes
[INFO] [stdout]  --> src/bin/ch7/main.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(const_evaluatable_checked)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: see issue #76560 <https://github.com/rust-lang/rust/issues/76560> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `const_generics` 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(const_generics)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(incomplete_features)]` on by default
[INFO] [stdout]   = note: see issue #44580 <https://github.com/rust-lang/rust/issues/44580> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `const_evaluatable_checked` is incomplete and may not be safe to use and/or cause compiler crashes
[INFO] [stdout]  --> src/bin/ch9/main.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(const_evaluatable_checked)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: see issue #76560 <https://github.com/rust-lang/rust/issues/76560> for more information
[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: `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`, `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`, `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: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: the feature `const_generics` 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(const_generics)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(incomplete_features)]` on by default
[INFO] [stdout]   = note: see issue #44580 <https://github.com/rust-lang/rust/issues/44580> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `const_evaluatable_checked` is incomplete and may not be safe to use and/or cause compiler crashes
[INFO] [stdout]  --> src/bin/ch10/main.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(const_evaluatable_checked)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: see issue #76560 <https://github.com/rust-lang/rust/issues/76560> for more information
[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: 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`, `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: 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]    |                                        ^^^^^ help: use `dyn`: `dyn Shape`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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: `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`, `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 imports: `cell::RefCell`, `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: `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 import: `FRAC_PI_6`
[INFO] [stdout]   --> src/bin/ch10/main.rs:22:52
[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: the feature `const_generics` 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(const_generics)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(incomplete_features)]` on by default
[INFO] [stdout]   = note: see issue #44580 <https://github.com/rust-lang/rust/issues/44580> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `const_evaluatable_checked` is incomplete and may not be safe to use and/or cause compiler crashes
[INFO] [stdout]  --> src/bin/ch11/main.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(const_evaluatable_checked)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: see issue #76560 <https://github.com/rust-lang/rust/issues/76560> for more information
[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`, `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`, `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: 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]    |                                        ^^^^^ help: use `dyn`: `dyn Shape`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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`, `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`, `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`, `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: `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 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: `cell::RefMut`
[INFO] [stdout]    --> src/bin/ch11/world.rs:275:9
[INFO] [stdout]     |
[INFO] [stdout] 275 |         cell::RefMut,
[INFO] [stdout]     |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `FRAC_PI_3`, `FRAC_PI_4`, `FRAC_PI_6`
[INFO] [stdout]   --> src/bin/ch11/main.rs:23:30
[INFO] [stdout]    |
[INFO] [stdout] 23 |     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`, `lights::PointLight`
[INFO] [stdout]   --> src/bin/ch11/main.rs:32:5
[INFO] [stdout]    |
[INFO] [stdout] 32 |     lights::PointLight,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 33 |     pattern::{Checkerboard, Gradient, Pattern, Ring, Stripe},
[INFO] [stdout]    |                             ^^^^^^^^           ^^^^  ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `const_generics` 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(const_generics)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(incomplete_features)]` on by default
[INFO] [stdout]   = note: see issue #44580 <https://github.com/rust-lang/rust/issues/44580> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `const_evaluatable_checked` is incomplete and may not be safe to use and/or cause compiler crashes
[INFO] [stdout]  --> src/bin/ch12/main.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(const_evaluatable_checked)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: see issue #76560 <https://github.com/rust-lang/rust/issues/76560> for more information
[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 imports: `Intersection`, `Plane`, `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`, `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: 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]    |                                        ^^^^^ help: use `dyn`: `dyn Shape`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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`, `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: `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: `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`, `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`, `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/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 import: `cell::RefMut`
[INFO] [stdout]    --> src/bin/ch12/world.rs:275:9
[INFO] [stdout]     |
[INFO] [stdout] 275 |         cell::RefMut,
[INFO] [stdout]     |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `materials::Material`
[INFO] [stdout]   --> src/bin/ch12/main.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 18 | use materials::Material;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `FRAC_PI_3`, `FRAC_PI_4`, `FRAC_PI_6`
[INFO] [stdout]   --> src/bin/ch12/main.rs:25:30
[INFO] [stdout]    |
[INFO] [stdout] 25 |     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`, `lights::PointLight`
[INFO] [stdout]   --> src/bin/ch12/main.rs:34:5
[INFO] [stdout]    |
[INFO] [stdout] 34 |     lights::PointLight,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 35 |     pattern::{Checkerboard, Gradient, Pattern, Ring, Stripe},
[INFO] [stdout]    |                             ^^^^^^^^           ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `const_generics` 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(const_generics)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(incomplete_features)]` on by default
[INFO] [stdout]   = note: see issue #44580 <https://github.com/rust-lang/rust/issues/44580> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `const_evaluatable_checked` is incomplete and may not be safe to use and/or cause compiler crashes
[INFO] [stdout]  --> src/bin/ch13/main.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(const_evaluatable_checked)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: see issue #76560 <https://github.com/rust-lang/rust/issues/76560> for more information
[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`, `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`, `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: 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]    |                                        ^^^^^ help: use `dyn`: `dyn Shape`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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`, `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`, `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`, `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:275:9
[INFO] [stdout]     |
[INFO] [stdout] 275 |         cell::RefMut,
[INFO] [stdout]     |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `materials::Material`
[INFO] [stdout]   --> src/bin/ch13/main.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 18 | use materials::Material;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `FRAC_PI_3`, `FRAC_PI_4`, `FRAC_PI_6`
[INFO] [stdout]   --> src/bin/ch13/main.rs:25:30
[INFO] [stdout]    |
[INFO] [stdout] 25 |     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`, `lights::PointLight`
[INFO] [stdout]   --> src/bin/ch13/main.rs:34:5
[INFO] [stdout]    |
[INFO] [stdout] 34 |     lights::PointLight,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 35 |     pattern::{Checkerboard, Gradient, Pattern, Ring, Stripe},
[INFO] [stdout]    |                             ^^^^^^^^           ^^^^
[INFO] [stdout] 36 |     shape::{Cone, Cylinder},
[INFO] [stdout]    |             ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `to_ppm`
[INFO] [stdout]   --> src/bin/ch3/canvas/mod.rs:32:12
[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 constant is never used: `IDENTITY`
[INFO] [stdout]   --> src/bin/ch3/matrix.rs:90:5
[INFO] [stdout]    |
[INFO] [stdout] 90 | /     pub const IDENTITY: Matrix<3> = Matrix {
[INFO] [stdout] 91 | |         data: [[1.0, 0.0, 0.0], [0.0, 1.0, 0.0], [0.0, 0.0, 1.0]],
[INFO] [stdout] 92 | |     };
[INFO] [stdout]    | |______^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_invertible`
[INFO] [stdout]    --> src/bin/ch3/matrix.rs:129:12
[INFO] [stdout]     |
[INFO] [stdout] 129 |     pub fn is_invertible(&self) -> bool {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `inverse`
[INFO] [stdout]    --> src/bin/ch3/matrix.rs:132:12
[INFO] [stdout]     |
[INFO] [stdout] 132 |     pub fn inverse(&self) -> Self {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated constant is never used: `IDENTITY`
[INFO] [stdout]    --> src/bin/ch3/matrix.rs:147:5
[INFO] [stdout]     |
[INFO] [stdout] 147 | /     pub const IDENTITY: Matrix<2> = Matrix {
[INFO] [stdout] 148 | |         data: [[1.0, 0.0], [0.0, 1.0]],
[INFO] [stdout] 149 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `minor`
[INFO] [stdout]    --> src/bin/ch3/matrix.rs:150:12
[INFO] [stdout]     |
[INFO] [stdout] 150 |     pub fn minor(&self, row: usize, col: usize) -> f64 {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `cofactor`
[INFO] [stdout]    --> src/bin/ch3/matrix.rs:153:12
[INFO] [stdout]     |
[INFO] [stdout] 153 |     pub fn cofactor(&self, row: usize, col: usize) -> f64 {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_invertible`
[INFO] [stdout]    --> src/bin/ch3/matrix.rs:159:12
[INFO] [stdout]     |
[INFO] [stdout] 159 |     pub fn is_invertible(&self) -> bool {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `inverse`
[INFO] [stdout]    --> src/bin/ch3/matrix.rs:162:12
[INFO] [stdout]     |
[INFO] [stdout] 162 |     pub fn inverse(&self) -> Self {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated constant is never used: `IDENTITY`
[INFO] [stdout]   --> src/bin/ch4/matrix.rs:92:5
[INFO] [stdout]    |
[INFO] [stdout] 92 | /     pub const IDENTITY: Matrix<3> = Matrix {
[INFO] [stdout] 93 | |         data: [[1.0, 0.0, 0.0], [0.0, 1.0, 0.0], [0.0, 0.0, 1.0]],
[INFO] [stdout] 94 | |     };
[INFO] [stdout]    | |______^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_invertible`
[INFO] [stdout]    --> src/bin/ch4/matrix.rs:131:12
[INFO] [stdout]     |
[INFO] [stdout] 131 |     pub fn is_invertible(&self) -> bool {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `inverse`
[INFO] [stdout]    --> src/bin/ch4/matrix.rs:134:12
[INFO] [stdout]     |
[INFO] [stdout] 134 |     pub fn inverse(&self) -> Self {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated constant is never used: `IDENTITY`
[INFO] [stdout]    --> src/bin/ch4/matrix.rs:149:5
[INFO] [stdout]     |
[INFO] [stdout] 149 | /     pub const IDENTITY: Matrix<2> = Matrix {
[INFO] [stdout] 150 | |         data: [[1.0, 0.0], [0.0, 1.0]],
[INFO] [stdout] 151 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `minor`
[INFO] [stdout]    --> src/bin/ch4/matrix.rs:152:12
[INFO] [stdout]     |
[INFO] [stdout] 152 |     pub fn minor(&self, row: usize, col: usize) -> f64 {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `cofactor`
[INFO] [stdout]    --> src/bin/ch4/matrix.rs:155:12
[INFO] [stdout]     |
[INFO] [stdout] 155 |     pub fn cofactor(&self, row: usize, col: usize) -> f64 {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_invertible`
[INFO] [stdout]    --> src/bin/ch4/matrix.rs:161:12
[INFO] [stdout]     |
[INFO] [stdout] 161 |     pub fn is_invertible(&self) -> bool {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `inverse`
[INFO] [stdout]    --> src/bin/ch4/matrix.rs:164:12
[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/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: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated constant is never used: `IDENTITY`
[INFO] [stdout]   --> src/bin/ch5/matrix.rs:92:5
[INFO] [stdout]    |
[INFO] [stdout] 92 | /     pub const IDENTITY: Matrix<3> = Matrix {
[INFO] [stdout] 93 | |         data: [[1.0, 0.0, 0.0], [0.0, 1.0, 0.0], [0.0, 0.0, 1.0]],
[INFO] [stdout] 94 | |     };
[INFO] [stdout]    | |______^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_invertible`
[INFO] [stdout]    --> src/bin/ch5/matrix.rs:131:12
[INFO] [stdout]     |
[INFO] [stdout] 131 |     pub fn is_invertible(&self) -> bool {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `inverse`
[INFO] [stdout]    --> src/bin/ch5/matrix.rs:134:12
[INFO] [stdout]     |
[INFO] [stdout] 134 |     pub fn inverse(&self) -> Self {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated constant is never used: `IDENTITY`
[INFO] [stdout]    --> src/bin/ch5/matrix.rs:149:5
[INFO] [stdout]     |
[INFO] [stdout] 149 | /     pub const IDENTITY: Matrix<2> = Matrix {
[INFO] [stdout] 150 | |         data: [[1.0, 0.0], [0.0, 1.0]],
[INFO] [stdout] 151 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `minor`
[INFO] [stdout]    --> src/bin/ch5/matrix.rs:152:12
[INFO] [stdout]     |
[INFO] [stdout] 152 |     pub fn minor(&self, row: usize, col: usize) -> f64 {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `cofactor`
[INFO] [stdout]    --> src/bin/ch5/matrix.rs:155:12
[INFO] [stdout]     |
[INFO] [stdout] 155 |     pub fn cofactor(&self, row: usize, col: usize) -> f64 {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_invertible`
[INFO] [stdout]    --> src/bin/ch5/matrix.rs:161:12
[INFO] [stdout]     |
[INFO] [stdout] 161 |     pub fn is_invertible(&self) -> bool {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `inverse`
[INFO] [stdout]    --> src/bin/ch5/matrix.rs:164:12
[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/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: 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: 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: associated constant is never used: `IDENTITY`
[INFO] [stdout]   --> src/bin/ch6/matrix.rs:92:5
[INFO] [stdout]    |
[INFO] [stdout] 92 | /     pub const IDENTITY: Matrix<3> = Matrix {
[INFO] [stdout] 93 | |         data: [[1.0, 0.0, 0.0], [0.0, 1.0, 0.0], [0.0, 0.0, 1.0]],
[INFO] [stdout] 94 | |     };
[INFO] [stdout]    | |______^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_invertible`
[INFO] [stdout]    --> src/bin/ch6/matrix.rs:131:12
[INFO] [stdout]     |
[INFO] [stdout] 131 |     pub fn is_invertible(&self) -> bool {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `inverse`
[INFO] [stdout]    --> src/bin/ch6/matrix.rs:134:12
[INFO] [stdout]     |
[INFO] [stdout] 134 |     pub fn inverse(&self) -> Self {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated constant is never used: `IDENTITY`
[INFO] [stdout]    --> src/bin/ch6/matrix.rs:149:5
[INFO] [stdout]     |
[INFO] [stdout] 149 | /     pub const IDENTITY: Matrix<2> = Matrix {
[INFO] [stdout] 150 | |         data: [[1.0, 0.0], [0.0, 1.0]],
[INFO] [stdout] 151 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `minor`
[INFO] [stdout]    --> src/bin/ch6/matrix.rs:152:12
[INFO] [stdout]     |
[INFO] [stdout] 152 |     pub fn minor(&self, row: usize, col: usize) -> f64 {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `cofactor`
[INFO] [stdout]    --> src/bin/ch6/matrix.rs:155:12
[INFO] [stdout]     |
[INFO] [stdout] 155 |     pub fn cofactor(&self, row: usize, col: usize) -> f64 {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_invertible`
[INFO] [stdout]    --> src/bin/ch6/matrix.rs:161:12
[INFO] [stdout]     |
[INFO] [stdout] 161 |     pub fn is_invertible(&self) -> bool {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `inverse`
[INFO] [stdout]    --> src/bin/ch6/matrix.rs:164:12
[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/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 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: 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/shape/mod.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     pattern::Pattern,
[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: 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: 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/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/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`
[INFO] [stdout]   --> src/bin/ch11/main.rs:33:39
[INFO] [stdout]    |
[INFO] [stdout] 33 |     pattern::{Checkerboard, Gradient, Pattern, Ring, Stripe},
[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: variable does not need to be mutable
[INFO] [stdout]   --> src/bin/ch10/main.rs:88:9
[INFO] [stdout]    |
[INFO] [stdout] 88 |     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/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: `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: associated constant is never used: `IDENTITY`
[INFO] [stdout]   --> src/bin/ch8/matrix.rs:92:5
[INFO] [stdout]    |
[INFO] [stdout] 92 | /     pub const IDENTITY: Matrix<3> = Matrix {
[INFO] [stdout] 93 | |         data: [[1.0, 0.0, 0.0], [0.0, 1.0, 0.0], [0.0, 0.0, 1.0]],
[INFO] [stdout] 94 | |     };
[INFO] [stdout]    | |______^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_invertible`
[INFO] [stdout]    --> src/bin/ch8/matrix.rs:131:12
[INFO] [stdout]     |
[INFO] [stdout] 131 |     pub fn is_invertible(&self) -> bool {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `inverse`
[INFO] [stdout]    --> src/bin/ch8/matrix.rs:134:12
[INFO] [stdout]     |
[INFO] [stdout] 134 |     pub fn inverse(&self) -> Self {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated constant is never used: `IDENTITY`
[INFO] [stdout]    --> src/bin/ch8/matrix.rs:149:5
[INFO] [stdout]     |
[INFO] [stdout] 149 | /     pub const IDENTITY: Matrix<2> = Matrix {
[INFO] [stdout] 150 | |         data: [[1.0, 0.0], [0.0, 1.0]],
[INFO] [stdout] 151 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `minor`
[INFO] [stdout]    --> src/bin/ch8/matrix.rs:152:12
[INFO] [stdout]     |
[INFO] [stdout] 152 |     pub fn minor(&self, row: usize, col: usize) -> f64 {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `cofactor`
[INFO] [stdout]    --> src/bin/ch8/matrix.rs:155:12
[INFO] [stdout]     |
[INFO] [stdout] 155 |     pub fn cofactor(&self, row: usize, col: usize) -> f64 {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_invertible`
[INFO] [stdout]    --> src/bin/ch8/matrix.rs:161:12
[INFO] [stdout]     |
[INFO] [stdout] 161 |     pub fn is_invertible(&self) -> bool {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `inverse`
[INFO] [stdout]    --> src/bin/ch8/matrix.rs:164:12
[INFO] [stdout]     |
[INFO] [stdout] 164 |     pub fn inverse(&self) -> Self {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/bin/ch11/main.rs:47:9
[INFO] [stdout]    |
[INFO] [stdout] 47 |     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: 1 warning emitted
[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: 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 constant is never used: `IDENTITY`
[INFO] [stdout]   --> src/bin/ch7/matrix.rs:92:5
[INFO] [stdout]    |
[INFO] [stdout] 92 | /     pub const IDENTITY: Matrix<3> = Matrix {
[INFO] [stdout] 93 | |         data: [[1.0, 0.0, 0.0], [0.0, 1.0, 0.0], [0.0, 0.0, 1.0]],
[INFO] [stdout] 94 | |     };
[INFO] [stdout]    | |______^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_invertible`
[INFO] [stdout]    --> src/bin/ch7/matrix.rs:131:12
[INFO] [stdout]     |
[INFO] [stdout] 131 |     pub fn is_invertible(&self) -> bool {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `inverse`
[INFO] [stdout]    --> src/bin/ch7/matrix.rs:134:12
[INFO] [stdout]     |
[INFO] [stdout] 134 |     pub fn inverse(&self) -> Self {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated constant is never used: `IDENTITY`
[INFO] [stdout]    --> src/bin/ch7/matrix.rs:149:5
[INFO] [stdout]     |
[INFO] [stdout] 149 | /     pub const IDENTITY: Matrix<2> = Matrix {
[INFO] [stdout] 150 | |         data: [[1.0, 0.0], [0.0, 1.0]],
[INFO] [stdout] 151 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `minor`
[INFO] [stdout]    --> src/bin/ch7/matrix.rs:152:12
[INFO] [stdout]     |
[INFO] [stdout] 152 |     pub fn minor(&self, row: usize, col: usize) -> f64 {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `cofactor`
[INFO] [stdout]    --> src/bin/ch7/matrix.rs:155:12
[INFO] [stdout]     |
[INFO] [stdout] 155 |     pub fn cofactor(&self, row: usize, col: usize) -> f64 {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_invertible`
[INFO] [stdout]    --> src/bin/ch7/matrix.rs:161:12
[INFO] [stdout]     |
[INFO] [stdout] 161 |     pub fn is_invertible(&self) -> bool {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `inverse`
[INFO] [stdout]    --> src/bin/ch7/matrix.rs:164:12
[INFO] [stdout]     |
[INFO] [stdout] 164 |     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: 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/shape/mod.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 |     pattern::Pattern,
[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/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: 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: `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: associated constant is never used: `IDENTITY`
[INFO] [stdout]    --> src/bin/ch9/matrix.rs:98:5
[INFO] [stdout]     |
[INFO] [stdout] 98  | /     pub const IDENTITY: Matrix<3> = Matrix {
[INFO] [stdout] 99  | |         data: [[1.0, 0.0, 0.0], [0.0, 1.0, 0.0], [0.0, 0.0, 1.0]],
[INFO] [stdout] 100 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_invertible`
[INFO] [stdout]    --> src/bin/ch9/matrix.rs:137:12
[INFO] [stdout]     |
[INFO] [stdout] 137 |     pub fn is_invertible(&self) -> bool {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `inverse`
[INFO] [stdout]    --> src/bin/ch9/matrix.rs:140:12
[INFO] [stdout]     |
[INFO] [stdout] 140 |     pub fn inverse(&self) -> Self {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated constant is never used: `IDENTITY`
[INFO] [stdout]    --> src/bin/ch9/matrix.rs:155:5
[INFO] [stdout]     |
[INFO] [stdout] 155 | /     pub const IDENTITY: Matrix<2> = Matrix {
[INFO] [stdout] 156 | |         data: [[1.0, 0.0], [0.0, 1.0]],
[INFO] [stdout] 157 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `minor`
[INFO] [stdout]    --> src/bin/ch9/matrix.rs:158:12
[INFO] [stdout]     |
[INFO] [stdout] 158 |     pub fn minor(&self, row: usize, col: usize) -> f64 {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `cofactor`
[INFO] [stdout]    --> src/bin/ch9/matrix.rs:161:12
[INFO] [stdout]     |
[INFO] [stdout] 161 |     pub fn cofactor(&self, row: usize, col: usize) -> f64 {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_invertible`
[INFO] [stdout]    --> src/bin/ch9/matrix.rs:167:12
[INFO] [stdout]     |
[INFO] [stdout] 167 |     pub fn is_invertible(&self) -> bool {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `inverse`
[INFO] [stdout]    --> src/bin/ch9/matrix.rs:170:12
[INFO] [stdout]     |
[INFO] [stdout] 170 |     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/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::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/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/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/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: 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: 11 warnings emitted
[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: associated constant is never used: `IDENTITY`
[INFO] [stdout]    --> src/bin/ch10/matrix.rs:98:5
[INFO] [stdout]     |
[INFO] [stdout] 98  | /     pub const IDENTITY: Matrix<3> = Matrix {
[INFO] [stdout] 99  | |         data: [[1.0, 0.0, 0.0], [0.0, 1.0, 0.0], [0.0, 0.0, 1.0]],
[INFO] [stdout] 100 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_invertible`
[INFO] [stdout]    --> src/bin/ch10/matrix.rs:137:12
[INFO] [stdout]     |
[INFO] [stdout] 137 |     pub fn is_invertible(&self) -> bool {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `inverse`
[INFO] [stdout]    --> src/bin/ch10/matrix.rs:140:12
[INFO] [stdout]     |
[INFO] [stdout] 140 |     pub fn inverse(&self) -> Self {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated constant is never used: `IDENTITY`
[INFO] [stdout]    --> src/bin/ch10/matrix.rs:155:5
[INFO] [stdout]     |
[INFO] [stdout] 155 | /     pub const IDENTITY: Matrix<2> = Matrix {
[INFO] [stdout] 156 | |         data: [[1.0, 0.0], [0.0, 1.0]],
[INFO] [stdout] 157 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `minor`
[INFO] [stdout]    --> src/bin/ch10/matrix.rs:158:12
[INFO] [stdout]     |
[INFO] [stdout] 158 |     pub fn minor(&self, row: usize, col: usize) -> f64 {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `cofactor`
[INFO] [stdout]    --> src/bin/ch10/matrix.rs:161:12
[INFO] [stdout]     |
[INFO] [stdout] 161 |     pub fn cofactor(&self, row: usize, col: usize) -> f64 {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_invertible`
[INFO] [stdout]    --> src/bin/ch10/matrix.rs:167:12
[INFO] [stdout]     |
[INFO] [stdout] 167 |     pub fn is_invertible(&self) -> bool {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `inverse`
[INFO] [stdout]    --> src/bin/ch10/matrix.rs:170:12
[INFO] [stdout]     |
[INFO] [stdout] 170 |     pub fn inverse(&self) -> Self {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated constant is never used: `IDENTITY`
[INFO] [stdout]    --> src/bin/ch11/matrix.rs:98:5
[INFO] [stdout]     |
[INFO] [stdout] 98  | /     pub const IDENTITY: Matrix<3> = Matrix {
[INFO] [stdout] 99  | |         data: [[1.0, 0.0, 0.0], [0.0, 1.0, 0.0], [0.0, 0.0, 1.0]],
[INFO] [stdout] 100 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_invertible`
[INFO] [stdout]    --> src/bin/ch11/matrix.rs:137:12
[INFO] [stdout]     |
[INFO] [stdout] 137 |     pub fn is_invertible(&self) -> bool {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `inverse`
[INFO] [stdout]    --> src/bin/ch11/matrix.rs:140:12
[INFO] [stdout]     |
[INFO] [stdout] 140 |     pub fn inverse(&self) -> Self {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated constant is never used: `IDENTITY`
[INFO] [stdout]    --> src/bin/ch11/matrix.rs:155:5
[INFO] [stdout]     |
[INFO] [stdout] 155 | /     pub const IDENTITY: Matrix<2> = Matrix {
[INFO] [stdout] 156 | |         data: [[1.0, 0.0], [0.0, 1.0]],
[INFO] [stdout] 157 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `minor`
[INFO] [stdout]    --> src/bin/ch11/matrix.rs:158:12
[INFO] [stdout]     |
[INFO] [stdout] 158 |     pub fn minor(&self, row: usize, col: usize) -> f64 {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `cofactor`
[INFO] [stdout]    --> src/bin/ch11/matrix.rs:161:12
[INFO] [stdout]     |
[INFO] [stdout] 161 |     pub fn cofactor(&self, row: usize, col: usize) -> f64 {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_invertible`
[INFO] [stdout]    --> src/bin/ch11/matrix.rs:167:12
[INFO] [stdout]     |
[INFO] [stdout] 167 |     pub fn is_invertible(&self) -> bool {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `inverse`
[INFO] [stdout]    --> src/bin/ch11/matrix.rs:170:12
[INFO] [stdout]     |
[INFO] [stdout] 170 |     pub fn inverse(&self) -> Self {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `magnitude`
[INFO] [stdout]   --> src/bin/ch11/tuple/color.rs:26:12
[INFO] [stdout]    |
[INFO] [stdout] 26 |     pub fn magnitude(&self) -> f64 {
[INFO] [stdout]    |            ^^^^^^^^^
[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: 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: 14 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated constant is never used: `IDENTITY`
[INFO] [stdout]    --> src/bin/ch12/matrix.rs:98:5
[INFO] [stdout]     |
[INFO] [stdout] 98  | /     pub const IDENTITY: Matrix<3> = Matrix {
[INFO] [stdout] 99  | |         data: [[1.0, 0.0, 0.0], [0.0, 1.0, 0.0], [0.0, 0.0, 1.0]],
[INFO] [stdout] 100 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_invertible`
[INFO] [stdout]    --> src/bin/ch12/matrix.rs:137:12
[INFO] [stdout]     |
[INFO] [stdout] 137 |     pub fn is_invertible(&self) -> bool {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `inverse`
[INFO] [stdout]    --> src/bin/ch12/matrix.rs:140:12
[INFO] [stdout]     |
[INFO] [stdout] 140 |     pub fn inverse(&self) -> Self {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated constant is never used: `IDENTITY`
[INFO] [stdout]    --> src/bin/ch12/matrix.rs:155:5
[INFO] [stdout]     |
[INFO] [stdout] 155 | /     pub const IDENTITY: Matrix<2> = Matrix {
[INFO] [stdout] 156 | |         data: [[1.0, 0.0], [0.0, 1.0]],
[INFO] [stdout] 157 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `minor`
[INFO] [stdout]    --> src/bin/ch12/matrix.rs:158:12
[INFO] [stdout]     |
[INFO] [stdout] 158 |     pub fn minor(&self, row: usize, col: usize) -> f64 {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `cofactor`
[INFO] [stdout]    --> src/bin/ch12/matrix.rs:161:12
[INFO] [stdout]     |
[INFO] [stdout] 161 |     pub fn cofactor(&self, row: usize, col: usize) -> f64 {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_invertible`
[INFO] [stdout]    --> src/bin/ch12/matrix.rs:167:12
[INFO] [stdout]     |
[INFO] [stdout] 167 |     pub fn is_invertible(&self) -> bool {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `inverse`
[INFO] [stdout]    --> src/bin/ch12/matrix.rs:170:12
[INFO] [stdout]     |
[INFO] [stdout] 170 |     pub fn inverse(&self) -> Self {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `magnitude`
[INFO] [stdout]   --> src/bin/ch12/tuple/color.rs:26:12
[INFO] [stdout]    |
[INFO] [stdout] 26 |     pub fn magnitude(&self) -> f64 {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `float_cmp`
[INFO] [stdout]    --> src/bin/ch12/main.rs:145:4
[INFO] [stdout]     |
[INFO] [stdout] 145 | fn float_cmp(first: &f64, second: &f64) -> std::cmp::Ordering {
[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 constant is never used: `IDENTITY`
[INFO] [stdout]    --> src/bin/ch13/matrix.rs:98:5
[INFO] [stdout]     |
[INFO] [stdout] 98  | /     pub const IDENTITY: Matrix<3> = Matrix {
[INFO] [stdout] 99  | |         data: [[1.0, 0.0, 0.0], [0.0, 1.0, 0.0], [0.0, 0.0, 1.0]],
[INFO] [stdout] 100 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_invertible`
[INFO] [stdout]    --> src/bin/ch13/matrix.rs:137:12
[INFO] [stdout]     |
[INFO] [stdout] 137 |     pub fn is_invertible(&self) -> bool {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `inverse`
[INFO] [stdout]    --> src/bin/ch13/matrix.rs:140:12
[INFO] [stdout]     |
[INFO] [stdout] 140 |     pub fn inverse(&self) -> Self {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated constant is never used: `IDENTITY`
[INFO] [stdout]    --> src/bin/ch13/matrix.rs:155:5
[INFO] [stdout]     |
[INFO] [stdout] 155 | /     pub const IDENTITY: Matrix<2> = Matrix {
[INFO] [stdout] 156 | |         data: [[1.0, 0.0], [0.0, 1.0]],
[INFO] [stdout] 157 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `minor`
[INFO] [stdout]    --> src/bin/ch13/matrix.rs:158:12
[INFO] [stdout]     |
[INFO] [stdout] 158 |     pub fn minor(&self, row: usize, col: usize) -> f64 {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `cofactor`
[INFO] [stdout]    --> src/bin/ch13/matrix.rs:161:12
[INFO] [stdout]     |
[INFO] [stdout] 161 |     pub fn cofactor(&self, row: usize, col: usize) -> f64 {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_invertible`
[INFO] [stdout]    --> src/bin/ch13/matrix.rs:167:12
[INFO] [stdout]     |
[INFO] [stdout] 167 |     pub fn is_invertible(&self) -> bool {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `inverse`
[INFO] [stdout]    --> src/bin/ch13/matrix.rs:170:12
[INFO] [stdout]     |
[INFO] [stdout] 170 |     pub fn inverse(&self) -> Self {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `magnitude`
[INFO] [stdout]   --> src/bin/ch13/tuple/color.rs:26:12
[INFO] [stdout]    |
[INFO] [stdout] 26 |     pub fn magnitude(&self) -> f64 {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `float_cmp`
[INFO] [stdout]    --> src/bin/ch13/main.rs:161:4
[INFO] [stdout]     |
[INFO] [stdout] 161 | fn float_cmp(first: &f64, second: &f64) -> std::cmp::Ordering {
[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] [stdout] warning: 14 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 14 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 16 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 14 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 27 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 46 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 36 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 43 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 50 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 24.62s
[INFO] running `Command { std: "docker" "inspect" "5f173a044350c84a4d2a7706f1e6e92c5d37a58bda72777e4c10acf186fb73f1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5f173a044350c84a4d2a7706f1e6e92c5d37a58bda72777e4c10acf186fb73f1", kill_on_drop: false }`
[INFO] [stdout] 5f173a044350c84a4d2a7706f1e6e92c5d37a58bda72777e4c10acf186fb73f1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 1fc276b6f8082a4efb3ea3ad51fb527927e87168bb2d8ad9bf3be349047dbd9c
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "1fc276b6f8082a4efb3ea3ad51fb527927e87168bb2d8ad9bf3be349047dbd9c", kill_on_drop: false }`
[INFO] [stderr] warning: the feature `const_generics` is incomplete and may not be safe to use and/or cause compiler crashes
[INFO] [stderr]  --> src/bin/ch3/main.rs:2:12
[INFO] [stderr]   |
[INFO] [stderr] 2 | #![feature(const_generics)]
[INFO] [stderr]   |            ^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(incomplete_features)]` on by default
[INFO] [stderr]   = note: see issue #44580 <https://github.com/rust-lang/rust/issues/44580> for more information
[INFO] [stderr] 
[INFO] [stderr] warning: the feature `const_evaluatable_checked` is incomplete and may not be safe to use and/or cause compiler crashes
[INFO] [stderr]  --> src/bin/ch3/main.rs:3:12
[INFO] [stderr]   |
[INFO] [stderr] 3 | #![feature(const_evaluatable_checked)]
[INFO] [stderr]   |            ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: see issue #76560 <https://github.com/rust-lang/rust/issues/76560> for more information
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `to_ppm`
[INFO] [stderr]   --> src/bin/ch3/canvas/mod.rs:32:12
[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 constant is never used: `IDENTITY`
[INFO] [stderr]   --> src/bin/ch3/matrix.rs:90:5
[INFO] [stderr]    |
[INFO] [stderr] 90 | /     pub const IDENTITY: Matrix<3> = Matrix {
[INFO] [stderr] 91 | |         data: [[1.0, 0.0, 0.0], [0.0, 1.0, 0.0], [0.0, 0.0, 1.0]],
[INFO] [stderr] 92 | |     };
[INFO] [stderr]    | |______^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `is_invertible`
[INFO] [stderr]    --> src/bin/ch3/matrix.rs:129:12
[INFO] [stderr]     |
[INFO] [stderr] 129 |     pub fn is_invertible(&self) -> bool {
[INFO] [stderr]     |            ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `inverse`
[INFO] [stderr]    --> src/bin/ch3/matrix.rs:132:12
[INFO] [stderr]     |
[INFO] [stderr] 132 |     pub fn inverse(&self) -> Self {
[INFO] [stderr]     |            ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated constant is never used: `IDENTITY`
[INFO] [stderr]    --> src/bin/ch3/matrix.rs:147:5
[INFO] [stderr]     |
[INFO] [stderr] 147 | /     pub const IDENTITY: Matrix<2> = Matrix {
[INFO] [stderr] 148 | |         data: [[1.0, 0.0], [0.0, 1.0]],
[INFO] [stderr] 149 | |     };
[INFO] [stderr]     | |______^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `minor`
[INFO] [stderr]    --> src/bin/ch3/matrix.rs:150:12
[INFO] [stderr]     |
[INFO] [stderr] 150 |     pub fn minor(&self, row: usize, col: usize) -> f64 {
[INFO] [stderr]     |            ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `cofactor`
[INFO] [stderr]    --> src/bin/ch3/matrix.rs:153:12
[INFO] [stderr]     |
[INFO] [stderr] 153 |     pub fn cofactor(&self, row: usize, col: usize) -> f64 {
[INFO] [stderr]     |            ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `is_invertible`
[INFO] [stderr]    --> src/bin/ch3/matrix.rs:159:12
[INFO] [stderr]     |
[INFO] [stderr] 159 |     pub fn is_invertible(&self) -> bool {
[INFO] [stderr]     |            ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `inverse`
[INFO] [stderr]    --> src/bin/ch3/matrix.rs:162:12
[INFO] [stderr]     |
[INFO] [stderr] 162 |     pub fn inverse(&self) -> Self {
[INFO] [stderr]     |            ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 11 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: the feature `const_generics` 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(const_generics)]
[INFO] [stderr]   |            ^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(incomplete_features)]` on by default
[INFO] [stderr]   = note: see issue #44580 <https://github.com/rust-lang/rust/issues/44580> for more information
[INFO] [stderr] 
[INFO] [stderr] warning: the feature `const_evaluatable_checked` is incomplete and may not be safe to use and/or cause compiler crashes
[INFO] [stderr]  --> src/bin/ch8/main.rs:2:12
[INFO] [stderr]   |
[INFO] [stderr] 2 | #![feature(const_evaluatable_checked)]
[INFO] [stderr]   |            ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: see issue #76560 <https://github.com/rust-lang/rust/issues/76560> for more information
[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:21:30
[INFO] [stderr]    |
[INFO] [stderr] 21 |     f64::consts::{FRAC_PI_2, FRAC_PI_3, FRAC_PI_4},
[INFO] [stderr]    |                              ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated constant is never used: `IDENTITY`
[INFO] [stderr]   --> src/bin/ch8/matrix.rs:92:5
[INFO] [stderr]    |
[INFO] [stderr] 92 | /     pub const IDENTITY: Matrix<3> = Matrix {
[INFO] [stderr] 93 | |         data: [[1.0, 0.0, 0.0], [0.0, 1.0, 0.0], [0.0, 0.0, 1.0]],
[INFO] [stderr] 94 | |     };
[INFO] [stderr]    | |______^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `is_invertible`
[INFO] [stderr]    --> src/bin/ch8/matrix.rs:131:12
[INFO] [stderr]     |
[INFO] [stderr] 131 |     pub fn is_invertible(&self) -> bool {
[INFO] [stderr]     |            ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `inverse`
[INFO] [stderr]    --> src/bin/ch8/matrix.rs:134:12
[INFO] [stderr]     |
[INFO] [stderr] 134 |     pub fn inverse(&self) -> Self {
[INFO] [stderr]     |            ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated constant is never used: `IDENTITY`
[INFO] [stderr]    --> src/bin/ch8/matrix.rs:149:5
[INFO] [stderr]     |
[INFO] [stderr] 149 | /     pub const IDENTITY: Matrix<2> = Matrix {
[INFO] [stderr] 150 | |         data: [[1.0, 0.0], [0.0, 1.0]],
[INFO] [stderr] 151 | |     };
[INFO] [stderr]     | |______^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `minor`
[INFO] [stderr]    --> src/bin/ch8/matrix.rs:152:12
[INFO] [stderr]     |
[INFO] [stderr] 152 |     pub fn minor(&self, row: usize, col: usize) -> f64 {
[INFO] [stderr]     |            ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `cofactor`
[INFO] [stderr]    --> src/bin/ch8/matrix.rs:155:12
[INFO] [stderr]     |
[INFO] [stderr] 155 |     pub fn cofactor(&self, row: usize, col: usize) -> f64 {
[INFO] [stderr]     |            ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `is_invertible`
[INFO] [stderr]    --> src/bin/ch8/matrix.rs:161:12
[INFO] [stderr]     |
[INFO] [stderr] 161 |     pub fn is_invertible(&self) -> bool {
[INFO] [stderr]     |            ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `inverse`
[INFO] [stderr]    --> src/bin/ch8/matrix.rs:164:12
[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: 16 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: the feature `const_generics` is incomplete and may not be safe to use and/or cause compiler crashes
[INFO] [stderr]  --> src/bin/ch4/main.rs:2:12
[INFO] [stderr]   |
[INFO] [stderr] 2 | #![feature(const_generics)]
[INFO] [stderr]   |            ^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(incomplete_features)]` on by default
[INFO] [stderr]   = note: see issue #44580 <https://github.com/rust-lang/rust/issues/44580> for more information
[INFO] [stderr] 
[INFO] [stderr] warning: the feature `const_evaluatable_checked` is incomplete and may not be safe to use and/or cause compiler crashes
[INFO] [stderr]  --> src/bin/ch4/main.rs:3:12
[INFO] [stderr]   |
[INFO] [stderr] 3 | #![feature(const_evaluatable_checked)]
[INFO] [stderr]   |            ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: see issue #76560 <https://github.com/rust-lang/rust/issues/76560> for more information
[INFO] [stderr] 
[INFO] [stderr] warning: associated constant is never used: `IDENTITY`
[INFO] [stderr]   --> src/bin/ch4/matrix.rs:92:5
[INFO] [stderr]    |
[INFO] [stderr] 92 | /     pub const IDENTITY: Matrix<3> = Matrix {
[INFO] [stderr] 93 | |         data: [[1.0, 0.0, 0.0], [0.0, 1.0, 0.0], [0.0, 0.0, 1.0]],
[INFO] [stderr] 94 | |     };
[INFO] [stderr]    | |______^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `is_invertible`
[INFO] [stderr]    --> src/bin/ch4/matrix.rs:131:12
[INFO] [stderr]     |
[INFO] [stderr] 131 |     pub fn is_invertible(&self) -> bool {
[INFO] [stderr]     |            ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `inverse`
[INFO] [stderr]    --> src/bin/ch4/matrix.rs:134:12
[INFO] [stderr]     |
[INFO] [stderr] 134 |     pub fn inverse(&self) -> Self {
[INFO] [stderr]     |            ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated constant is never used: `IDENTITY`
[INFO] [stderr]    --> src/bin/ch4/matrix.rs:149:5
[INFO] [stderr]     |
[INFO] [stderr] 149 | /     pub const IDENTITY: Matrix<2> = Matrix {
[INFO] [stderr] 150 | |         data: [[1.0, 0.0], [0.0, 1.0]],
[INFO] [stderr] 151 | |     };
[INFO] [stderr]     | |______^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `minor`
[INFO] [stderr]    --> src/bin/ch4/matrix.rs:152:12
[INFO] [stderr]     |
[INFO] [stderr] 152 |     pub fn minor(&self, row: usize, col: usize) -> f64 {
[INFO] [stderr]     |            ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `cofactor`
[INFO] [stderr]    --> src/bin/ch4/matrix.rs:155:12
[INFO] [stderr]     |
[INFO] [stderr] 155 |     pub fn cofactor(&self, row: usize, col: usize) -> f64 {
[INFO] [stderr]     |            ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `is_invertible`
[INFO] [stderr]    --> src/bin/ch4/matrix.rs:161:12
[INFO] [stderr]     |
[INFO] [stderr] 161 |     pub fn is_invertible(&self) -> bool {
[INFO] [stderr]     |            ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `inverse`
[INFO] [stderr]    --> src/bin/ch4/matrix.rs:164:12
[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/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: 14 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: the feature `const_generics` 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(const_generics)]
[INFO] [stderr]   |            ^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(incomplete_features)]` on by default
[INFO] [stderr]   = note: see issue #44580 <https://github.com/rust-lang/rust/issues/44580> for more information
[INFO] [stderr] 
[INFO] [stderr] warning: the feature `const_evaluatable_checked` is incomplete and may not be safe to use and/or cause compiler crashes
[INFO] [stderr]  --> src/bin/ch13/main.rs:2:12
[INFO] [stderr]   |
[INFO] [stderr] 2 | #![feature(const_evaluatable_checked)]
[INFO] [stderr]   |            ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: see issue #76560 <https://github.com/rust-lang/rust/issues/76560> for more information
[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`, `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`, `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: 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]    |                                        ^^^^^ help: use `dyn`: `dyn Shape`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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`, `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`, `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`, `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:275:9
[INFO] [stderr]     |
[INFO] [stderr] 275 |         cell::RefMut,
[INFO] [stderr]     |         ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `materials::Material`
[INFO] [stderr]   --> src/bin/ch13/main.rs:18:5
[INFO] [stderr]    |
[INFO] [stderr] 18 | use materials::Material;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `FRAC_PI_3`, `FRAC_PI_4`, `FRAC_PI_6`
[INFO] [stderr]   --> src/bin/ch13/main.rs:25:30
[INFO] [stderr]    |
[INFO] [stderr] 25 |     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`, `lights::PointLight`
[INFO] [stderr]   --> src/bin/ch13/main.rs:34:5
[INFO] [stderr]    |
[INFO] [stderr] 34 |     lights::PointLight,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 35 |     pattern::{Checkerboard, Gradient, Pattern, Ring, Stripe},
[INFO] [stderr]    |                             ^^^^^^^^           ^^^^
[INFO] [stderr] 36 |     shape::{Cone, Cylinder},
[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/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/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/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: associated constant is never used: `IDENTITY`
[INFO] [stderr]    --> src/bin/ch13/matrix.rs:98:5
[INFO] [stderr]     |
[INFO] [stderr] 98  | /     pub const IDENTITY: Matrix<3> = Matrix {
[INFO] [stderr] 99  | |         data: [[1.0, 0.0, 0.0], [0.0, 1.0, 0.0], [0.0, 0.0, 1.0]],
[INFO] [stderr] 100 | |     };
[INFO] [stderr]     | |______^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `is_invertible`
[INFO] [stderr]    --> src/bin/ch13/matrix.rs:137:12
[INFO] [stderr]     |
[INFO] [stderr] 137 |     pub fn is_invertible(&self) -> bool {
[INFO] [stderr]     |            ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `inverse`
[INFO] [stderr]    --> src/bin/ch13/matrix.rs:140:12
[INFO] [stderr]     |
[INFO] [stderr] 140 |     pub fn inverse(&self) -> Self {
[INFO] [stderr]     |            ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated constant is never used: `IDENTITY`
[INFO] [stderr]    --> src/bin/ch13/matrix.rs:155:5
[INFO] [stderr]     |
[INFO] [stderr] 155 | /     pub const IDENTITY: Matrix<2> = Matrix {
[INFO] [stderr] 156 | |         data: [[1.0, 0.0], [0.0, 1.0]],
[INFO] [stderr] 157 | |     };
[INFO] [stderr]     | |______^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `minor`
[INFO] [stderr]    --> src/bin/ch13/matrix.rs:158:12
[INFO] [stderr]     |
[INFO] [stderr] 158 |     pub fn minor(&self, row: usize, col: usize) -> f64 {
[INFO] [stderr]     |            ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `cofactor`
[INFO] [stderr]    --> src/bin/ch13/matrix.rs:161:12
[INFO] [stderr]     |
[INFO] [stderr] 161 |     pub fn cofactor(&self, row: usize, col: usize) -> f64 {
[INFO] [stderr]     |            ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `is_invertible`
[INFO] [stderr]    --> src/bin/ch13/matrix.rs:167:12
[INFO] [stderr]     |
[INFO] [stderr] 167 |     pub fn is_invertible(&self) -> bool {
[INFO] [stderr]     |            ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `inverse`
[INFO] [stderr]    --> src/bin/ch13/matrix.rs:170:12
[INFO] [stderr]     |
[INFO] [stderr] 170 |     pub fn inverse(&self) -> Self {
[INFO] [stderr]     |            ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `magnitude`
[INFO] [stderr]   --> src/bin/ch13/tuple/color.rs:26:12
[INFO] [stderr]    |
[INFO] [stderr] 26 |     pub fn magnitude(&self) -> f64 {
[INFO] [stderr]    |            ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `float_cmp`
[INFO] [stderr]    --> src/bin/ch13/main.rs:161:4
[INFO] [stderr]     |
[INFO] [stderr] 161 | fn float_cmp(first: &f64, second: &f64) -> std::cmp::Ordering {
[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: 50 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `dot`
[INFO] [stderr]   --> src/bin/ch1/tuple.rs:79:12
[INFO] [stderr]    |
[INFO] [stderr] 79 |     pub fn dot(&self, other: Self) -> f64 {
[INFO] [stderr]    |            ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `cross`
[INFO] [stderr]   --> src/bin/ch1/tuple.rs:83:12
[INFO] [stderr]    |
[INFO] [stderr] 83 |     pub fn cross(&self, other: Self) -> Self {
[INFO] [stderr]    |            ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: the feature `const_generics` 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(const_generics)]
[INFO] [stderr]   |            ^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(incomplete_features)]` on by default
[INFO] [stderr]   = note: see issue #44580 <https://github.com/rust-lang/rust/issues/44580> for more information
[INFO] [stderr] 
[INFO] [stderr] warning: the feature `const_evaluatable_checked` is incomplete and may not be safe to use and/or cause compiler crashes
[INFO] [stderr]  --> src/bin/ch12/main.rs:2:12
[INFO] [stderr]   |
[INFO] [stderr] 2 | #![feature(const_evaluatable_checked)]
[INFO] [stderr]   |            ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: see issue #76560 <https://github.com/rust-lang/rust/issues/76560> for more information
[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`, `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`, `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: 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]    |                                        ^^^^^ help: use `dyn`: `dyn Shape`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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`, `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`, `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`, `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:275:9
[INFO] [stderr]     |
[INFO] [stderr] 275 |         cell::RefMut,
[INFO] [stderr]     |         ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `materials::Material`
[INFO] [stderr]   --> src/bin/ch12/main.rs:18:5
[INFO] [stderr]    |
[INFO] [stderr] 18 | use materials::Material;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `FRAC_PI_3`, `FRAC_PI_4`, `FRAC_PI_6`
[INFO] [stderr]   --> src/bin/ch12/main.rs:25:30
[INFO] [stderr]    |
[INFO] [stderr] 25 |     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`, `lights::PointLight`
[INFO] [stderr]   --> src/bin/ch12/main.rs:34:5
[INFO] [stderr]    |
[INFO] [stderr] 34 |     lights::PointLight,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 35 |     pattern::{Checkerboard, Gradient, Pattern, Ring, Stripe},
[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 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/shape/mod.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 |     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: associated constant is never used: `IDENTITY`
[INFO] [stderr]    --> src/bin/ch12/matrix.rs:98:5
[INFO] [stderr]     |
[INFO] [stderr] 98  | /     pub const IDENTITY: Matrix<3> = Matrix {
[INFO] [stderr] 99  | |         data: [[1.0, 0.0, 0.0], [0.0, 1.0, 0.0], [0.0, 0.0, 1.0]],
[INFO] [stderr] 100 | |     };
[INFO] [stderr]     | |______^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `is_invertible`
[INFO] [stderr]    --> src/bin/ch12/matrix.rs:137:12
[INFO] [stderr]     |
[INFO] [stderr] 137 |     pub fn is_invertible(&self) -> bool {
[INFO] [stderr]     |            ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `inverse`
[INFO] [stderr]    --> src/bin/ch12/matrix.rs:140:12
[INFO] [stderr]     |
[INFO] [stderr] 140 |     pub fn inverse(&self) -> Self {
[INFO] [stderr]     |            ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated constant is never used: `IDENTITY`
[INFO] [stderr]    --> src/bin/ch12/matrix.rs:155:5
[INFO] [stderr]     |
[INFO] [stderr] 155 | /     pub const IDENTITY: Matrix<2> = Matrix {
[INFO] [stderr] 156 | |         data: [[1.0, 0.0], [0.0, 1.0]],
[INFO] [stderr] 157 | |     };
[INFO] [stderr]     | |______^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `minor`
[INFO] [stderr]    --> src/bin/ch12/matrix.rs:158:12
[INFO] [stderr]     |
[INFO] [stderr] 158 |     pub fn minor(&self, row: usize, col: usize) -> f64 {
[INFO] [stderr]     |            ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `cofactor`
[INFO] [stderr]    --> src/bin/ch12/matrix.rs:161:12
[INFO] [stderr]     |
[INFO] [stderr] 161 |     pub fn cofactor(&self, row: usize, col: usize) -> f64 {
[INFO] [stderr]     |            ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `is_invertible`
[INFO] [stderr]    --> src/bin/ch12/matrix.rs:167:12
[INFO] [stderr]     |
[INFO] [stderr] 167 |     pub fn is_invertible(&self) -> bool {
[INFO] [stderr]     |            ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `inverse`
[INFO] [stderr]    --> src/bin/ch12/matrix.rs:170:12
[INFO] [stderr]     |
[INFO] [stderr] 170 |     pub fn inverse(&self) -> Self {
[INFO] [stderr]     |            ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `magnitude`
[INFO] [stderr]   --> src/bin/ch12/tuple/color.rs:26:12
[INFO] [stderr]    |
[INFO] [stderr] 26 |     pub fn magnitude(&self) -> f64 {
[INFO] [stderr]    |            ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `float_cmp`
[INFO] [stderr]    --> src/bin/ch12/main.rs:145:4
[INFO] [stderr]     |
[INFO] [stderr] 145 | fn float_cmp(first: &f64, second: &f64) -> std::cmp::Ordering {
[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: 46 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: the feature `const_generics` 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(const_generics)]
[INFO] [stderr]   |            ^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(incomplete_features)]` on by default
[INFO] [stderr]   = note: see issue #44580 <https://github.com/rust-lang/rust/issues/44580> for more information
[INFO] [stderr] 
[INFO] [stderr] warning: the feature `const_evaluatable_checked` is incomplete and may not be safe to use and/or cause compiler crashes
[INFO] [stderr]  --> src/bin/ch10/main.rs:2:12
[INFO] [stderr]   |
[INFO] [stderr] 2 | #![feature(const_evaluatable_checked)]
[INFO] [stderr]   |            ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: see issue #76560 <https://github.com/rust-lang/rust/issues/76560> for more information
[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`, `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: 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]    |                                        ^^^^^ help: use `dyn`: `dyn Shape`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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`, `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`, `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:22:52
[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 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 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/shape/mod.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 |     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:88:9
[INFO] [stderr]    |
[INFO] [stderr] 88 |     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 constant is never used: `IDENTITY`
[INFO] [stderr]    --> src/bin/ch10/matrix.rs:98:5
[INFO] [stderr]     |
[INFO] [stderr] 98  | /     pub const IDENTITY: Matrix<3> = Matrix {
[INFO] [stderr] 99  | |         data: [[1.0, 0.0, 0.0], [0.0, 1.0, 0.0], [0.0, 0.0, 1.0]],
[INFO] [stderr] 100 | |     };
[INFO] [stderr]     | |______^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `is_invertible`
[INFO] [stderr]    --> src/bin/ch10/matrix.rs:137:12
[INFO] [stderr]     |
[INFO] [stderr] 137 |     pub fn is_invertible(&self) -> bool {
[INFO] [stderr]     |            ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `inverse`
[INFO] [stderr]    --> src/bin/ch10/matrix.rs:140:12
[INFO] [stderr]     |
[INFO] [stderr] 140 |     pub fn inverse(&self) -> Self {
[INFO] [stderr]     |            ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated constant is never used: `IDENTITY`
[INFO] [stderr]    --> src/bin/ch10/matrix.rs:155:5
[INFO] [stderr]     |
[INFO] [stderr] 155 | /     pub const IDENTITY: Matrix<2> = Matrix {
[INFO] [stderr] 156 | |         data: [[1.0, 0.0], [0.0, 1.0]],
[INFO] [stderr] 157 | |     };
[INFO] [stderr]     | |______^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `minor`
[INFO] [stderr]    --> src/bin/ch10/matrix.rs:158:12
[INFO] [stderr]     |
[INFO] [stderr] 158 |     pub fn minor(&self, row: usize, col: usize) -> f64 {
[INFO] [stderr]     |            ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `cofactor`
[INFO] [stderr]    --> src/bin/ch10/matrix.rs:161:12
[INFO] [stderr]     |
[INFO] [stderr] 161 |     pub fn cofactor(&self, row: usize, col: usize) -> f64 {
[INFO] [stderr]     |            ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `is_invertible`
[INFO] [stderr]    --> src/bin/ch10/matrix.rs:167:12
[INFO] [stderr]     |
[INFO] [stderr] 167 |     pub fn is_invertible(&self) -> bool {
[INFO] [stderr]     |            ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `inverse`
[INFO] [stderr]    --> src/bin/ch10/matrix.rs:170:12
[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/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: 36 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: the feature `const_generics` 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(const_generics)]
[INFO] [stderr]   |            ^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(incomplete_features)]` on by default
[INFO] [stderr]   = note: see issue #44580 <https://github.com/rust-lang/rust/issues/44580> for more information
[INFO] [stderr] 
[INFO] [stderr] warning: the feature `const_evaluatable_checked` is incomplete and may not be safe to use and/or cause compiler crashes
[INFO] [stderr]  --> src/bin/ch9/main.rs:2:12
[INFO] [stderr]   |
[INFO] [stderr] 2 | #![feature(const_evaluatable_checked)]
[INFO] [stderr]   |            ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: see issue #76560 <https://github.com/rust-lang/rust/issues/76560> for more information
[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`, `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`, `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: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: 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 constant is never used: `IDENTITY`
[INFO] [stderr]    --> src/bin/ch9/matrix.rs:98:5
[INFO] [stderr]     |
[INFO] [stderr] 98  | /     pub const IDENTITY: Matrix<3> = Matrix {
[INFO] [stderr] 99  | |         data: [[1.0, 0.0, 0.0], [0.0, 1.0, 0.0], [0.0, 0.0, 1.0]],
[INFO] [stderr] 100 | |     };
[INFO] [stderr]     | |______^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `is_invertible`
[INFO] [stderr]    --> src/bin/ch9/matrix.rs:137:12
[INFO] [stderr]     |
[INFO] [stderr] 137 |     pub fn is_invertible(&self) -> bool {
[INFO] [stderr]     |            ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `inverse`
[INFO] [stderr]    --> src/bin/ch9/matrix.rs:140:12
[INFO] [stderr]     |
[INFO] [stderr] 140 |     pub fn inverse(&self) -> Self {
[INFO] [stderr]     |            ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated constant is never used: `IDENTITY`
[INFO] [stderr]    --> src/bin/ch9/matrix.rs:155:5
[INFO] [stderr]     |
[INFO] [stderr] 155 | /     pub const IDENTITY: Matrix<2> = Matrix {
[INFO] [stderr] 156 | |         data: [[1.0, 0.0], [0.0, 1.0]],
[INFO] [stderr] 157 | |     };
[INFO] [stderr]     | |______^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `minor`
[INFO] [stderr]    --> src/bin/ch9/matrix.rs:158:12
[INFO] [stderr]     |
[INFO] [stderr] 158 |     pub fn minor(&self, row: usize, col: usize) -> f64 {
[INFO] [stderr]     |            ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `cofactor`
[INFO] [stderr]    --> src/bin/ch9/matrix.rs:161:12
[INFO] [stderr]     |
[INFO] [stderr] 161 |     pub fn cofactor(&self, row: usize, col: usize) -> f64 {
[INFO] [stderr]     |            ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `is_invertible`
[INFO] [stderr]    --> src/bin/ch9/matrix.rs:167:12
[INFO] [stderr]     |
[INFO] [stderr] 167 |     pub fn is_invertible(&self) -> bool {
[INFO] [stderr]     |            ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `inverse`
[INFO] [stderr]    --> src/bin/ch9/matrix.rs:170:12
[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: 27 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: the feature `const_generics` 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(const_generics)]
[INFO] [stderr]   |            ^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(incomplete_features)]` on by default
[INFO] [stderr]   = note: see issue #44580 <https://github.com/rust-lang/rust/issues/44580> for more information
[INFO] [stderr] 
[INFO] [stderr] warning: the feature `const_evaluatable_checked` is incomplete and may not be safe to use and/or cause compiler crashes
[INFO] [stderr]  --> src/bin/ch7/main.rs:2:12
[INFO] [stderr]   |
[INFO] [stderr] 2 | #![feature(const_evaluatable_checked)]
[INFO] [stderr]   |            ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: see issue #76560 <https://github.com/rust-lang/rust/issues/76560> for more information
[INFO] [stderr] 
[INFO] [stderr] warning: associated constant is never used: `IDENTITY`
[INFO] [stderr]   --> src/bin/ch7/matrix.rs:92:5
[INFO] [stderr]    |
[INFO] [stderr] 92 | /     pub const IDENTITY: Matrix<3> = Matrix {
[INFO] [stderr] 93 | |         data: [[1.0, 0.0, 0.0], [0.0, 1.0, 0.0], [0.0, 0.0, 1.0]],
[INFO] [stderr] 94 | |     };
[INFO] [stderr]    | |______^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `is_invertible`
[INFO] [stderr]    --> src/bin/ch7/matrix.rs:131:12
[INFO] [stderr]     |
[INFO] [stderr] 131 |     pub fn is_invertible(&self) -> bool {
[INFO] [stderr]     |            ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `inverse`
[INFO] [stderr]    --> src/bin/ch7/matrix.rs:134:12
[INFO] [stderr]     |
[INFO] [stderr] 134 |     pub fn inverse(&self) -> Self {
[INFO] [stderr]     |            ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated constant is never used: `IDENTITY`
[INFO] [stderr]    --> src/bin/ch7/matrix.rs:149:5
[INFO] [stderr]     |
[INFO] [stderr] 149 | /     pub const IDENTITY: Matrix<2> = Matrix {
[INFO] [stderr] 150 | |         data: [[1.0, 0.0], [0.0, 1.0]],
[INFO] [stderr] 151 | |     };
[INFO] [stderr]     | |______^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `minor`
[INFO] [stderr]    --> src/bin/ch7/matrix.rs:152:12
[INFO] [stderr]     |
[INFO] [stderr] 152 |     pub fn minor(&self, row: usize, col: usize) -> f64 {
[INFO] [stderr]     |            ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `cofactor`
[INFO] [stderr]    --> src/bin/ch7/matrix.rs:155:12
[INFO] [stderr]     |
[INFO] [stderr] 155 |     pub fn cofactor(&self, row: usize, col: usize) -> f64 {
[INFO] [stderr]     |            ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `is_invertible`
[INFO] [stderr]    --> src/bin/ch7/matrix.rs:161:12
[INFO] [stderr]     |
[INFO] [stderr] 161 |     pub fn is_invertible(&self) -> bool {
[INFO] [stderr]     |            ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `inverse`
[INFO] [stderr]    --> src/bin/ch7/matrix.rs:164:12
[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: 14 warnings emitted
[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: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] warning: the feature `const_generics` 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(const_generics)]
[INFO] [stderr]   |            ^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(incomplete_features)]` on by default
[INFO] [stderr]   = note: see issue #44580 <https://github.com/rust-lang/rust/issues/44580> for more information
[INFO] [stderr] 
[INFO] [stderr] warning: the feature `const_evaluatable_checked` is incomplete and may not be safe to use and/or cause compiler crashes
[INFO] [stderr]  --> src/bin/ch6/main.rs:2:12
[INFO] [stderr]   |
[INFO] [stderr] 2 | #![feature(const_evaluatable_checked)]
[INFO] [stderr]   |            ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: see issue #76560 <https://github.com/rust-lang/rust/issues/76560> for more information
[INFO] [stderr] 
[INFO] [stderr] warning: associated constant is never used: `IDENTITY`
[INFO] [stderr]   --> src/bin/ch6/matrix.rs:92:5
[INFO] [stderr]    |
[INFO] [stderr] 92 | /     pub const IDENTITY: Matrix<3> = Matrix {
[INFO] [stderr] 93 | |         data: [[1.0, 0.0, 0.0], [0.0, 1.0, 0.0], [0.0, 0.0, 1.0]],
[INFO] [stderr] 94 | |     };
[INFO] [stderr]    | |______^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `is_invertible`
[INFO] [stderr]    --> src/bin/ch6/matrix.rs:131:12
[INFO] [stderr]     |
[INFO] [stderr] 131 |     pub fn is_invertible(&self) -> bool {
[INFO] [stderr]     |            ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `inverse`
[INFO] [stderr]    --> src/bin/ch6/matrix.rs:134:12
[INFO] [stderr]     |
[INFO] [stderr] 134 |     pub fn inverse(&self) -> Self {
[INFO] [stderr]     |            ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated constant is never used: `IDENTITY`
[INFO] [stderr]    --> src/bin/ch6/matrix.rs:149:5
[INFO] [stderr]     |
[INFO] [stderr] 149 | /     pub const IDENTITY: Matrix<2> = Matrix {
[INFO] [stderr] 150 | |         data: [[1.0, 0.0], [0.0, 1.0]],
[INFO] [stderr] 151 | |     };
[INFO] [stderr]     | |______^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `minor`
[INFO] [stderr]    --> src/bin/ch6/matrix.rs:152:12
[INFO] [stderr]     |
[INFO] [stderr] 152 |     pub fn minor(&self, row: usize, col: usize) -> f64 {
[INFO] [stderr]     |            ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `cofactor`
[INFO] [stderr]    --> src/bin/ch6/matrix.rs:155:12
[INFO] [stderr]     |
[INFO] [stderr] 155 |     pub fn cofactor(&self, row: usize, col: usize) -> f64 {
[INFO] [stderr]     |            ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `is_invertible`
[INFO] [stderr]    --> src/bin/ch6/matrix.rs:161:12
[INFO] [stderr]     |
[INFO] [stderr] 161 |     pub fn is_invertible(&self) -> bool {
[INFO] [stderr]     |            ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `inverse`
[INFO] [stderr]    --> src/bin/ch6/matrix.rs:164:12
[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/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: 14 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: the feature `const_generics` 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(const_generics)]
[INFO] [stderr]   |            ^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(incomplete_features)]` on by default
[INFO] [stderr]   = note: see issue #44580 <https://github.com/rust-lang/rust/issues/44580> for more information
[INFO] [stderr] 
[INFO] [stderr] warning: the feature `const_evaluatable_checked` is incomplete and may not be safe to use and/or cause compiler crashes
[INFO] [stderr]  --> src/bin/ch11/main.rs:2:12
[INFO] [stderr]   |
[INFO] [stderr] 2 | #![feature(const_evaluatable_checked)]
[INFO] [stderr]   |            ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: see issue #76560 <https://github.com/rust-lang/rust/issues/76560> for more information
[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`, `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`, `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: 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]    |                                        ^^^^^ help: use `dyn`: `dyn Shape`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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`, `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`, `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`, `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:275:9
[INFO] [stderr]     |
[INFO] [stderr] 275 |         cell::RefMut,
[INFO] [stderr]     |         ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `FRAC_PI_3`, `FRAC_PI_4`, `FRAC_PI_6`
[INFO] [stderr]   --> src/bin/ch11/main.rs:23:30
[INFO] [stderr]    |
[INFO] [stderr] 23 |     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`, `lights::PointLight`
[INFO] [stderr]   --> src/bin/ch11/main.rs:32:5
[INFO] [stderr]    |
[INFO] [stderr] 32 |     lights::PointLight,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 33 |     pattern::{Checkerboard, Gradient, Pattern, Ring, Stripe},
[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 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`
[INFO] [stderr]   --> src/bin/ch11/main.rs:33:39
[INFO] [stderr]    |
[INFO] [stderr] 33 |     pattern::{Checkerboard, Gradient, Pattern, Ring, Stripe},
[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:47:9
[INFO] [stderr]    |
[INFO] [stderr] 47 |     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 constant is never used: `IDENTITY`
[INFO] [stderr]    --> src/bin/ch11/matrix.rs:98:5
[INFO] [stderr]     |
[INFO] [stderr] 98  | /     pub const IDENTITY: Matrix<3> = Matrix {
[INFO] [stderr] 99  | |         data: [[1.0, 0.0, 0.0], [0.0, 1.0, 0.0], [0.0, 0.0, 1.0]],
[INFO] [stderr] 100 | |     };
[INFO] [stderr]     | |______^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `is_invertible`
[INFO] [stderr]    --> src/bin/ch11/matrix.rs:137:12
[INFO] [stderr]     |
[INFO] [stderr] 137 |     pub fn is_invertible(&self) -> bool {
[INFO] [stderr]     |            ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `inverse`
[INFO] [stderr]    --> src/bin/ch11/matrix.rs:140:12
[INFO] [stderr]     |
[INFO] [stderr] 140 |     pub fn inverse(&self) -> Self {
[INFO] [stderr]     |            ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated constant is never used: `IDENTITY`
[INFO] [stderr]    --> src/bin/ch11/matrix.rs:155:5
[INFO] [stderr]     |
[INFO] [stderr] 155 | /     pub const IDENTITY: Matrix<2> = Matrix {
[INFO] [stderr] 156 | |         data: [[1.0, 0.0], [0.0, 1.0]],
[INFO] [stderr] 157 | |     };
[INFO] [stderr]     | |______^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `minor`
[INFO] [stderr]    --> src/bin/ch11/matrix.rs:158:12
[INFO] [stderr]     |
[INFO] [stderr] 158 |     pub fn minor(&self, row: usize, col: usize) -> f64 {
[INFO] [stderr]     |            ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `cofactor`
[INFO] [stderr]    --> src/bin/ch11/matrix.rs:161:12
[INFO] [stderr]     |
[INFO] [stderr] 161 |     pub fn cofactor(&self, row: usize, col: usize) -> f64 {
[INFO] [stderr]     |            ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `is_invertible`
[INFO] [stderr]    --> src/bin/ch11/matrix.rs:167:12
[INFO] [stderr]     |
[INFO] [stderr] 167 |     pub fn is_invertible(&self) -> bool {
[INFO] [stderr]     |            ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `inverse`
[INFO] [stderr]    --> src/bin/ch11/matrix.rs:170:12
[INFO] [stderr]     |
[INFO] [stderr] 170 |     pub fn inverse(&self) -> Self {
[INFO] [stderr]     |            ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `magnitude`
[INFO] [stderr]   --> src/bin/ch11/tuple/color.rs:26:12
[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: 43 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: the feature `const_generics` 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(const_generics)]
[INFO] [stderr]   |            ^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(incomplete_features)]` on by default
[INFO] [stderr]   = note: see issue #44580 <https://github.com/rust-lang/rust/issues/44580> for more information
[INFO] [stderr] 
[INFO] [stderr] warning: the feature `const_evaluatable_checked` is incomplete and may not be safe to use and/or cause compiler crashes
[INFO] [stderr]  --> src/bin/ch5/main.rs:2:12
[INFO] [stderr]   |
[INFO] [stderr] 2 | #![feature(const_evaluatable_checked)]
[INFO] [stderr]   |            ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: see issue #76560 <https://github.com/rust-lang/rust/issues/76560> for more information
[INFO] [stderr] 
[INFO] [stderr] warning: associated constant is never used: `IDENTITY`
[INFO] [stderr]   --> src/bin/ch5/matrix.rs:92:5
[INFO] [stderr]    |
[INFO] [stderr] 92 | /     pub const IDENTITY: Matrix<3> = Matrix {
[INFO] [stderr] 93 | |         data: [[1.0, 0.0, 0.0], [0.0, 1.0, 0.0], [0.0, 0.0, 1.0]],
[INFO] [stderr] 94 | |     };
[INFO] [stderr]    | |______^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `is_invertible`
[INFO] [stderr]    --> src/bin/ch5/matrix.rs:131:12
[INFO] [stderr]     |
[INFO] [stderr] 131 |     pub fn is_invertible(&self) -> bool {
[INFO] [stderr]     |            ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `inverse`
[INFO] [stderr]    --> src/bin/ch5/matrix.rs:134:12
[INFO] [stderr]     |
[INFO] [stderr] 134 |     pub fn inverse(&self) -> Self {
[INFO] [stderr]     |            ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated constant is never used: `IDENTITY`
[INFO] [stderr]    --> src/bin/ch5/matrix.rs:149:5
[INFO] [stderr]     |
[INFO] [stderr] 149 | /     pub const IDENTITY: Matrix<2> = Matrix {
[INFO] [stderr] 150 | |         data: [[1.0, 0.0], [0.0, 1.0]],
[INFO] [stderr] 151 | |     };
[INFO] [stderr]     | |______^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `minor`
[INFO] [stderr]    --> src/bin/ch5/matrix.rs:152:12
[INFO] [stderr]     |
[INFO] [stderr] 152 |     pub fn minor(&self, row: usize, col: usize) -> f64 {
[INFO] [stderr]     |            ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `cofactor`
[INFO] [stderr]    --> src/bin/ch5/matrix.rs:155:12
[INFO] [stderr]     |
[INFO] [stderr] 155 |     pub fn cofactor(&self, row: usize, col: usize) -> f64 {
[INFO] [stderr]     |            ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `is_invertible`
[INFO] [stderr]    --> src/bin/ch5/matrix.rs:161:12
[INFO] [stderr]     |
[INFO] [stderr] 161 |     pub fn is_invertible(&self) -> bool {
[INFO] [stderr]     |            ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `inverse`
[INFO] [stderr]    --> src/bin/ch5/matrix.rs:164:12
[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/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: 14 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/ch1-329e584e9cd78fd6)
[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 (/opt/rustwide/target/debug/deps/ch10-f52e8b9a470ae217)
[INFO] [stdout] 
[INFO] [stdout] running 145 tests
[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 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_eye_in_reflection_path ... ok
[INFO] [stdout] test matrix::tests::another_inverse ... ok
[INFO] [stdout] test canvas::tests::write_pixel ... 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 materials::tests::default_material ... ok
[INFO] [stdout] test materials::tests::lighting_with_eye_between_light_and_surface ... ok
[INFO] [stdout] test matrix::tests::equality ... ok
[INFO] [stdout] test matrix::tests::cofactor_3x3 ... ok
[INFO] [stdout] test camera::tests::pixel_size_for_horizontal_canvas ... ok
[INFO] [stdout] test matrix::tests::determinant_4x4 ... ok
[INFO] [stdout] test camera::tests::pixel_size_for_vertical_canvas ... ok
[INFO] [stdout] test matrix::tests::determinant_2x2 ... ok
[INFO] [stdout] test matrix::tests::another_inverse_again ... ok
[INFO] [stdout] test camera::tests::constructing_a_camera ... ok
[INFO] [stdout] test matrix::tests::create_2x2 ... ok
[INFO] [stdout] test matrix::tests::minor_3x3 ... 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::multiply_by_identity ... ok
[INFO] [stdout] test matrix::tests::inverse_multiplication ... ok
[INFO] [stdout] test matrix::tests::transpose_identity ... ok
[INFO] [stdout] test pattern::checkerboard::tests::checker_should_repeat_in_y ... 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 camera::tests::constructing_ray_through_center_of_canvas ... ok
[INFO] [stdout] test canvas::tests::canvas_creation ... ok
[INFO] [stdout] test pattern::ring::tests::ring_should_extend_in_both_x_and_z ... ok
[INFO] [stdout] test matrix::tests::transpose_matrix ... ok
[INFO] [stdout] test matrix::tests::multiply_by_matrix ... ok
[INFO] [stdout] test matrix::tests::determinant_3x3 ... ok
[INFO] [stdout] test lights::tests::point_light_has_position_and_intensity ... ok
[INFO] [stdout] test pattern::checkerboard::tests::checker_should_repeat_in_x ... ok
[INFO] [stdout] test pattern::stripe::tests::stripe_constant_in_z ... 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::stripes_with_object_transformation ... 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 pattern::tests::pattern_with_both_transforms ... ok
[INFO] [stdout] test pattern::stripe::tests::create_stripe_pattern ... ok
[INFO] [stdout] test pattern::tests::pattern_with_pattern_transform ... ok
[INFO] [stdout] test ray::tests::change_sphere_transformation ... ok
[INFO] [stdout] test ray::tests::aggregating_intersections ... ok
[INFO] [stdout] test ray::tests::create_and_query_ray ... ok
[INFO] [stdout] test pattern::tests::assign_transformation ... ok
[INFO] [stdout] test ray::tests::hit_when_some_negative_t ... 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 pattern::stripe::tests::stripe_constant_in_y ... 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::intersect_translated_sphere_with_ray ... 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::intersection_encapsulates_t_and_object ... 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 pattern::stripe::tests::stripe_alternates_in_x ... 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::ray_originates_in_sphere ... ok
[INFO] [stdout] test ray::tests::ray_misses_sphere ... ok
[INFO] [stdout] test shape::plane::tests::normal_of_plane_is_constant ... ok
[INFO] [stdout] test shape::plane::tests::intersect_ray_parallel ... ok
[INFO] [stdout] test shape::plane::tests::ray_intersect_from_above ... ok
[INFO] [stdout] test shape::plane::tests::intersect_coplanar_ray ... ok
[INFO] [stdout] test shape::plane::tests::ray_intersect_from_below ... ok
[INFO] [stdout] test ray::tests::translate_ray ... ok
[INFO] [stdout] test ray::tests::scale_ray ... ok
[INFO] [stdout] test shape::sphere::tests::normal_is_normalized ... 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 shape::sphere::tests::sphere_normal_at_nonaxial ... ok
[INFO] [stdout] test shape::sphere::tests::sphere_normal_on_x ... 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 matrix::tests::multiply_by_point ... ok
[INFO] [stdout] test shape::tests::assign_transformation ... ok
[INFO] [stdout] test shape::tests::assign_material ... ok
[INFO] [stdout] test matrix::tests::create_3x3 ... ok
[INFO] [stdout] test matrix::tests::create_4x4 ... 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 shape::tests::compute_normal_of_transformed_shape ... ok
[INFO] [stdout] test pattern::tests::default_pattern_transformation ... ok
[INFO] [stdout] test shape::tests::compute_normal_of_translated_shape ... ok
[INFO] [stdout] test shape::tests::default_material ... ok
[INFO] [stdout] test transformations::tests::individual_transformations_applied_in_sequence ... 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::inverse_scaling_a_vector ... ok
[INFO] [stdout] test transformations::tests::multiply_by_transformation ... ok
[INFO] [stdout] test shape::tests::intersect_scaled_shape_with_ray ... ok
[INFO] [stdout] test transformations::tests::shear_z_by_x ... 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::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 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::color_when_ray_hits ... ok
[INFO] [stdout] test world::tests::color_when_ray_misses ... ok
[INFO] [stdout] test transformations::tests::shear_y_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::rotate_around_z ... ok
[INFO] [stdout] test transformations::tests::scaling_a_vector ... ok
[INFO] [stdout] test world::tests::color_with_intersection_behind_ray ... ok
[INFO] [stdout] test shape::tests::intersect_translated_sphere_with_ray ... ok
[INFO] [stdout] test transformations::tests::shear_x_by_z ... ok
[INFO] [stdout] test shape::tests::default_transformation ... ok
[INFO] [stdout] test transformations::tests::multiply_by_translation_inverse ... ok
[INFO] [stdout] test transformations::tests::rotate_around_x ... ok
[INFO] [stdout] test world::tests::create_a_world ... ok
[INFO] [stdout] test transformations::tests::reflection ... ok
[INFO] [stdout] test transformations::tests::rotate_around_y ... ok
[INFO] [stdout] test transformations::tests::inverse_rotation_around_x ... 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::hit_when_intersection_occurs_on_interior ... ok
[INFO] [stdout] test world::tests::default_world ... 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::hit_when_intersection_occurs_on_exterior ... ok
[INFO] [stdout] test world::tests::shading_an_intersection ... ok
[INFO] [stdout] test world::tests::no_shadow_when_object_behind_point ... ok
[INFO] [stdout] test world::tests::hit_should_offset_point ... ok
[INFO] [stdout] test world::tests::shade_hit_given_intersection_in_shadow ... ok
[INFO] [stdout] test world::tests::intersect_world_with_ray ... ok
[INFO] [stdout] test world::tests::precomputing_state_of_intersection ... ok
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/ch11-27a2fc306e036673)
[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 0.25s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 165 tests
[INFO] [stdout] test camera::tests::constructing_a_camera ... ok
[INFO] [stdout] test camera::tests::pixel_size_for_vertical_canvas ... ok
[INFO] [stdout] test materials::tests::default_transparency_and_refractive_index ... ok
[INFO] [stdout] test materials::tests::lighting_with_surface_in_shadow ... 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_eye_offset_by_45 ... ok
[INFO] [stdout] test materials::tests::default_material ... ok
[INFO] [stdout] test materials::tests::default_reflectivity ... ok
[INFO] [stdout] test canvas::tests::write_pixel ... ok
[INFO] [stdout] test canvas::tests::canvas_creation ... ok
[INFO] [stdout] test camera::tests::pixel_size_for_horizontal_canvas ... ok
[INFO] [stdout] test materials::tests::lighting_with_eye_in_reflection_path ... ok
[INFO] [stdout] test camera::tests::constructing_ray_when_camera_transformed ... ok
[INFO] [stdout] test matrix::tests::another_inverse ... ok
[INFO] [stdout] test matrix::tests::create_2x2 ... ok
[INFO] [stdout] test matrix::tests::create_4x4 ... ok
[INFO] [stdout] test lights::tests::point_light_has_position_and_intensity ... ok
[INFO] [stdout] test matrix::tests::another_inverse_again ... ok
[INFO] [stdout] test matrix::tests::determinant_4x4 ... ok
[INFO] [stdout] test matrix::tests::multiply_by_identity ... ok
[INFO] [stdout] test matrix::tests::cofactor_3x3 ... ok
[INFO] [stdout] test camera::tests::constructing_ray_through_center_of_canvas ... 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 camera::tests::constructing_ray_through_corner_of_canvas ... ok
[INFO] [stdout] test matrix::tests::equality ... ok
[INFO] [stdout] test matrix::tests::minor_3x3 ... ok
[INFO] [stdout] test matrix::tests::inequality ... ok
[INFO] [stdout] test matrix::tests::determinant_2x2 ... ok
[INFO] [stdout] test matrix::tests::create_3x3 ... 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::inverse_multiplication ... ok
[INFO] [stdout] test materials::tests::lighting_with_eye_between_light_and_surface ... ok
[INFO] [stdout] test pattern::stripe::tests::stripe_constant_in_z ... ok
[INFO] [stdout] test pattern::stripe::tests::stripes_with_both_transformation ... ok
[INFO] [stdout] test pattern::stripe::tests::stripes_with_object_transformation ... ok
[INFO] [stdout] test pattern::stripe::tests::stripes_with_pattern_transformation ... ok
[INFO] [stdout] test pattern::tests::assign_transformation ... ok
[INFO] [stdout] test pattern::tests::default_pattern_transformation ... ok
[INFO] [stdout] test pattern::tests::pattern_with_both_transforms ... ok
[INFO] [stdout] test pattern::tests::pattern_with_object_transformation ... ok
[INFO] [stdout] test pattern::tests::pattern_with_pattern_transform ... ok
[INFO] [stdout] test pattern::stripe::tests::create_stripe_pattern ... ok
[INFO] [stdout] test matrix::tests::transpose_identity ... ok
[INFO] [stdout] test ray::tests::change_sphere_transformation ... ok
[INFO] [stdout] test ray::tests::default_sphere_transformation ... ok
[INFO] [stdout] test ray::tests::Schlick_approximation_under_total_internal_reflection ... ok
[INFO] [stdout] test pattern::stripe::tests::stripe_constant_in_y ... ok
[INFO] [stdout] test pattern::checkerboard::tests::checker_should_repeat_in_y ... ok
[INFO] [stdout] test matrix::tests::submatrix_3x3 ... ok
[INFO] [stdout] test matrix::tests::transpose_matrix ... 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 ray::tests::intersect_sets_object_on_intersection ... 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::finding_n1_and_n2_at_various_intersections ... ok
[INFO] [stdout] test ray::tests::create_and_query_ray ... 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 ray::tests::aggregating_intersections ... ok
[INFO] [stdout] test ray::tests::hit_when_all_positive_t ... ok
[INFO] [stdout] test ray::tests::intersect_translated_sphere_with_ray ... 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::under_point_offset_below_surface ... ok
[INFO] [stdout] test ray::tests::ray_originates_in_sphere ... ok
[INFO] [stdout] test ray::tests::sphere_behind_ray ... ok
[INFO] [stdout] test ray::tests::scale_ray ... ok
[INFO] [stdout] test ray::tests::schlick_approximation_with_perpendicular_viewing_angle ... ok
[INFO] [stdout] test pattern::ring::tests::ring_should_extend_in_both_x_and_z ... ok
[INFO] [stdout] test pattern::checkerboard::tests::checker_should_repeat_in_z ... ok
[INFO] [stdout] test ray::tests::ray_intersect_sphere_at_two_points ... 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 matrix::tests::submatrix_4x4 ... ok
[INFO] [stdout] test ray::tests::translate_ray ... ok
[INFO] [stdout] test shape::plane::tests::intersect_coplanar_ray ... ok
[INFO] [stdout] test ray::tests::ray_misses_sphere ... 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::plane::tests::ray_intersect_from_above ... ok
[INFO] [stdout] test shape::plane::tests::ray_intersect_from_below ... ok
[INFO] [stdout] test shape::sphere::tests::helper_for_producing_sphere_with_glassy_material ... 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 transformations::tests::arbitrary_view_transformation ... ok
[INFO] [stdout] test shape::tests::intersect_translated_sphere_with_ray ... ok
[INFO] [stdout] test shape::tests::intersect_scaled_shape_with_ray ... ok
[INFO] [stdout] test shape::tests::default_transformation ... 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::inverse_rotation_around_x ... 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::reflection ... ok
[INFO] [stdout] test transformations::tests::rotate_around_x ... ok
[INFO] [stdout] test transformations::tests::multiply_by_translation_inverse ... ok
[INFO] [stdout] test transformations::tests::rotate_around_y ... ok
[INFO] [stdout] test shape::tests::assign_material ... ok
[INFO] [stdout] test shape::tests::default_material ... ok
[INFO] [stdout] test shape::tests::assign_transformation ... ok
[INFO] [stdout] test transformations::tests::shear_x_by_z ... ok
[INFO] [stdout] test transformations::tests::rotate_around_z ... ok
[INFO] [stdout] test transformations::tests::scaling_a_point ... ok
[INFO] [stdout] test shape::sphere::tests::sphere_normal_on_x ... 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_z ... ok
[INFO] [stdout] test shape::tests::compute_normal_of_translated_shape ... 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 transformations::tests::shear_y_by_x ... ok
[INFO] [stdout] test transformations::tests::view_transformation_moves_the_world ... ok
[INFO] [stdout] test tuple::color::tests::color_multiplication ... ok
[INFO] [stdout] test tuple::color::tests::addition ... ok
[INFO] [stdout] test tuple::tests::point_plus_vector ... ok
[INFO] [stdout] test tuple::tests::vector_plus_vector ... 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::point_minus_point ... ok
[INFO] [stdout] test ray::tests::hit_is_always_lowest_nonnegative_intersection ... ok
[INFO] [stdout] test transformations::tests::translation_does_not_affect_vector ... 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 transformations::tests::shear_z_by_y ... ok
[INFO] [stdout] test shape::sphere::tests::reflect_vector_at_45 ... ok
[INFO] [stdout] test transformations::tests::shear_z_by_x ... ok
[INFO] [stdout] test shape::plane::tests::normal_of_plane_is_constant ... ok
[INFO] [stdout] test world::tests::color_when_ray_hits ... ok
[INFO] [stdout] test world::tests::color_when_ray_misses ... ok
[INFO] [stdout] test world::tests::reflected_color_at_max_recursive_depth ... ok
[INFO] [stdout] test world::tests::no_shadow_when_object_behind_point ... 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::default_world ... ok
[INFO] [stdout] test world::tests::create_a_world ... 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::refracted_color_with_refracted_ray ... ok
[INFO] [stdout] test world::tests::reflection_for_nonreflective_material ... ok
[INFO] [stdout] test world::tests::refracted_color_under_total_internal_reflection ... ok
[INFO] [stdout] test world::tests::hit_when_intersection_occurs_on_interior ... ok
[INFO] [stdout] test world::tests::shade_hit_with_reflective_material ... ok
[INFO] [stdout] test world::tests::shade_hit_given_intersection_in_shadow ... 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::color_at_with_mutually_reflective_surfaces ... ok
[INFO] [stdout] test shape::tests::compute_normal_of_transformed_shape ... ok
[INFO] [stdout] test world::tests::reflected_color_for_reflective_material ... 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::precomputing_state_of_intersection ... ok
[INFO] [stdout] test world::tests::shading_an_intersection_from_inside ... 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 world::tests::shading_an_intersection ... ok
[INFO] [stdout] test world::tests::precomputing_reflection_vector ... ok
[INFO] [stdout] test world::tests::shadow_when_object_between_point_and_light ... 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 0.30s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/ch12-ef50fe3429837272)
[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::constructing_ray_when_camera_transformed ... ok
[INFO] [stdout] test camera::tests::constructing_ray_through_corner_of_canvas ... 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::another_inverse_again ... 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 canvas::tests::canvas_creation ... 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::default_transparency_and_refractive_index ... ok
[INFO] [stdout] test materials::tests::lighting_with_eye_offset_by_45 ... 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::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::inverse ... ok
[INFO] [stdout] test matrix::tests::inverse_multiplication ... ok
[INFO] [stdout] test camera::tests::pixel_size_for_vertical_canvas ... ok
[INFO] [stdout] test materials::tests::default_reflectivity ... ok
[INFO] [stdout] test materials::tests::default_material ... ok
[INFO] [stdout] test matrix::tests::determinant_4x4 ... ok
[INFO] [stdout] test lights::tests::point_light_has_position_and_intensity ... ok
[INFO] [stdout] test matrix::tests::equality ... ok
[INFO] [stdout] test matrix::tests::determinant_2x2 ... ok
[INFO] [stdout] test camera::tests::pixel_size_for_horizontal_canvas ... ok
[INFO] [stdout] test matrix::tests::determinant_3x3 ... ok
[INFO] [stdout] test canvas::tests::write_pixel ... ok
[INFO] [stdout] test matrix::tests::inequality ... ok
[INFO] [stdout] test matrix::tests::transpose_identity ... ok
[INFO] [stdout] test pattern::checkerboard::tests::checker_should_repeat_in_y ... ok
[INFO] [stdout] test pattern::tests::assign_transformation ... ok
[INFO] [stdout] test pattern::tests::default_pattern_transformation ... ok
[INFO] [stdout] test pattern::stripe::tests::lighting_with_pattern_applied ... ok
[INFO] [stdout] test pattern::stripe::tests::create_stripe_pattern ... ok
[INFO] [stdout] test pattern::gradient::tests::gradient_linearly_interpolates_between_colors ... ok
[INFO] [stdout] test pattern::stripe::tests::stripes_with_object_transformation ... 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::stripe::tests::stripes_with_both_transformation ... ok
[INFO] [stdout] test pattern::ring::tests::ring_should_extend_in_both_x_and_z ... ok
[INFO] [stdout] test pattern::stripe::tests::stripe_alternates_in_x ... 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 matrix::tests::transpose_matrix ... ok
[INFO] [stdout] test pattern::tests::pattern_with_object_transformation ... ok
[INFO] [stdout] test pattern::tests::pattern_with_pattern_transform ... ok
[INFO] [stdout] test ray::tests::Schlick_approximation_under_total_internal_reflection ... ok
[INFO] [stdout] test ray::tests::create_and_query_ray ... ok
[INFO] [stdout] test ray::tests::finding_n1_and_n2_at_various_intersections ... ok
[INFO] [stdout] test pattern::tests::pattern_with_both_transforms ... 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::hit_when_all_positive_t ... ok
[INFO] [stdout] test ray::tests::hit_when_some_negative_t ... 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::intersect_translated_sphere_with_ray ... ok
[INFO] [stdout] test ray::tests::schlick_approximation_with_small_angle_and_n2_gt_n1 ... ok
[INFO] [stdout] test ray::tests::aggregating_intersections ... ok
[INFO] [stdout] test ray::tests::change_sphere_transformation ... 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::scale_ray ... ok
[INFO] [stdout] test ray::tests::schlick_approximation_with_perpendicular_viewing_angle ... ok
[INFO] [stdout] test ray::tests::ray_originates_in_sphere ... ok
[INFO] [stdout] test shape::cube::tests::normal_of_cube ... ok
[INFO] [stdout] test shape::cube::tests::ray_misses_cube ... ok
[INFO] [stdout] test ray::tests::translate_ray ... ok
[INFO] [stdout] test shape::cube::tests::ray_intersect_cube ... ok
[INFO] [stdout] test ray::tests::sphere_behind_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::sphere::tests::helper_for_producing_sphere_with_glassy_material ... ok
[INFO] [stdout] test shape::sphere::tests::sphere_normal_on_x ... ok
[INFO] [stdout] test shape::sphere::tests::sphere_normal_on_z ... ok
[INFO] [stdout] test shape::sphere::tests::sphere_normal_on_y ... ok
[INFO] [stdout] test shape::tests::assign_transformation ... ok
[INFO] [stdout] test shape::tests::compute_normal_of_translated_shape ... ok
[INFO] [stdout] test shape::tests::compute_normal_of_transformed_shape ... ok
[INFO] [stdout] test shape::tests::default_material ... ok
[INFO] [stdout] test shape::sphere::tests::reflect_vector_at_45 ... ok
[INFO] [stdout] test shape::plane::tests::intersect_ray_parallel ... ok
[INFO] [stdout] test ray::tests::hit_is_always_lowest_nonnegative_intersection ... ok
[INFO] [stdout] test shape::sphere::tests::reflect_vector_off_slant ... ok
[INFO] [stdout] test shape::tests::assign_material ... ok
[INFO] [stdout] test shape::plane::tests::intersect_coplanar_ray ... ok
[INFO] [stdout] test ray::tests::point_from_distance ... 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::plane::tests::ray_intersect_from_below ... ok
[INFO] [stdout] test shape::sphere::tests::normal_is_normalized ... ok
[INFO] [stdout] test transformations::tests::rotate_around_y ... ok
[INFO] [stdout] test transformations::tests::rotate_around_x ... ok
[INFO] [stdout] test transformations::tests::chained_transformations_applied_in_reverse ... ok
[INFO] [stdout] test shape::tests::default_transformation ... 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_z ... 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::translation_does_not_affect_vector ... 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_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::multiply_by_transformation ... 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::multiply_by_translation_inverse ... ok
[INFO] [stdout] test transformations::tests::reflection ... ok
[INFO] [stdout] test transformations::tests::inverse_scaling_a_vector ... ok
[INFO] [stdout] test world::tests::create_a_world ... ok
[INFO] [stdout] test shape::tests::intersect_translated_sphere_with_ray ... ok
[INFO] [stdout] test transformations::tests::arbitrary_view_transformation ... ok
[INFO] [stdout] test world::tests::default_world ... ok
[INFO] [stdout] test pattern::checkerboard::tests::checker_should_repeat_in_z ... ok
[INFO] [stdout] test shape::tests::intersect_scaled_shape_with_ray ... 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::reflected_color_at_max_recursive_depth ... ok
[INFO] [stdout] test world::tests::no_shadow_when_object_behind_point ... ok
[INFO] [stdout] test world::tests::hit_when_intersection_occurs_on_interior ... ok
[INFO] [stdout] test transformations::tests::rotate_around_z ... ok
[INFO] [stdout] test world::tests::precomputing_reflection_vector ... ok
[INFO] [stdout] test world::tests::no_shadow_when_not_colinear_with_point_and_light ... ok
[INFO] [stdout] test world::tests::intersect_world_with_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::refracted_color_under_total_internal_reflection ... 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::reflected_color_for_reflective_material ... ok
[INFO] [stdout] test world::tests::refracted_color_with_opaque_surface ... ok
[INFO] [stdout] test world::tests::shade_hit_with_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::color_when_ray_hits ... ok
[INFO] [stdout] test world::tests::shade_hit_given_intersection_in_shadow ... ok
[INFO] [stdout] test world::tests::color_when_ray_misses ... ok
[INFO] [stdout] test world::tests::color_with_intersection_behind_ray ... ok
[INFO] [stdout] test world::tests::refracted_color_with_refracted_ray ... ok
[INFO] [stdout] test world::tests::shade_hit_with_transparent_material ... ok
[INFO] [stdout] test world::tests::color_at_with_mutually_reflective_surfaces ... ok
[INFO] [stdout] test world::tests::shading_an_intersection_from_inside ... 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 0.30s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/ch13-c32d2808b7e9365f)
[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::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 camera::tests::pixel_size_for_vertical_canvas ... ok
[INFO] [stdout] test camera::tests::pixel_size_for_horizontal_canvas ... ok
[INFO] [stdout] test materials::tests::lighting_with_light_offset_by_45 ... ok
[INFO] [stdout] test materials::tests::lighting_with_eye_in_reflection_path ... 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::create_2x2 ... ok
[INFO] [stdout] test matrix::tests::create_3x3 ... ok
[INFO] [stdout] test matrix::tests::equality ... ok
[INFO] [stdout] test matrix::tests::determinant_3x3 ... ok
[INFO] [stdout] test matrix::tests::inequality ... ok
[INFO] [stdout] test matrix::tests::determinant_2x2 ... ok
[INFO] [stdout] test matrix::tests::create_4x4 ... ok
[INFO] [stdout] test matrix::tests::inverse ... ok
[INFO] [stdout] test matrix::tests::inverse_multiplication ... 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::not_invertible ... ok
[INFO] [stdout] test matrix::tests::submatrix_3x3 ... ok
[INFO] [stdout] test matrix::tests::multiply_by_point ... 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 pattern::checkerboard::tests::checker_should_repeat_in_x ... ok
[INFO] [stdout] test pattern::checkerboard::tests::checker_should_repeat_in_y ... ok
[INFO] [stdout] test materials::tests::lighting_with_eye_offset_by_45 ... ok
[INFO] [stdout] test materials::tests::default_transparency_and_refractive_index ... ok
[INFO] [stdout] test matrix::tests::cofactor_3x3 ... ok
[INFO] [stdout] test materials::tests::default_material ... ok
[INFO] [stdout] test materials::tests::lighting_with_light_behind_surface ... ok
[INFO] [stdout] test materials::tests::lighting_with_eye_between_light_and_surface ... 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::stripe::tests::stripe_alternates_in_x ... ok
[INFO] [stdout] test pattern::stripe::tests::stripe_constant_in_y ... ok
[INFO] [stdout] test pattern::ring::tests::ring_should_extend_in_both_x_and_z ... ok
[INFO] [stdout] test lights::tests::point_light_has_position_and_intensity ... ok
[INFO] [stdout] test materials::tests::default_reflectivity ... ok
[INFO] [stdout] test matrix::tests::determinant_4x4 ... ok
[INFO] [stdout] test pattern::tests::default_pattern_transformation ... ok
[INFO] [stdout] test pattern::stripe::tests::stripes_with_object_transformation ... ok
[INFO] [stdout] test ray::tests::change_sphere_transformation ... ok
[INFO] [stdout] test ray::tests::aggregating_intersections ... ok
[INFO] [stdout] test pattern::stripe::tests::create_stripe_pattern ... ok
[INFO] [stdout] test pattern::tests::pattern_with_pattern_transform ... ok
[INFO] [stdout] test pattern::tests::pattern_with_object_transformation ... ok
[INFO] [stdout] test ray::tests::hit_when_all_negative_t ... ok
[INFO] [stdout] test pattern::tests::assign_transformation ... ok
[INFO] [stdout] test ray::tests::hit_is_always_lowest_nonnegative_intersection ... ok
[INFO] [stdout] test pattern::stripe::tests::stripes_with_both_transformation ... ok
[INFO] [stdout] test ray::tests::hit_when_some_negative_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::ray_intersect_sphere_at_tangent ... ok
[INFO] [stdout] test ray::tests::finding_n1_and_n2_at_various_intersections ... ok
[INFO] [stdout] test ray::tests::ray_originates_in_sphere ... ok
[INFO] [stdout] test ray::tests::ray_misses_sphere ... ok
[INFO] [stdout] test ray::tests::create_and_query_ray ... ok
[INFO] [stdout] test ray::tests::scale_ray ... ok
[INFO] [stdout] test ray::tests::ray_intersect_sphere_at_two_points ... ok
[INFO] [stdout] test pattern::stripe::tests::stripes_with_pattern_transformation ... ok
[INFO] [stdout] test ray::tests::schlick_approximation_with_perpendicular_viewing_angle ... 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::intersect_translated_sphere_with_ray ... ok
[INFO] [stdout] test ray::tests::sphere_behind_ray ... ok
[INFO] [stdout] test ray::tests::translate_ray ... ok
[INFO] [stdout] test shape::cone::tests::intersecting_cone_end_caps ... ok
[INFO] [stdout] test ray::tests::default_sphere_transformation ... ok
[INFO] [stdout] test ray::tests::schlick_approximation_with_small_angle_and_n2_gt_n1 ... ok
[INFO] [stdout] test ray::tests::hit_when_all_positive_t ... ok
[INFO] [stdout] test shape::cube::tests::normal_of_cube ... ok
[INFO] [stdout] test shape::cube::tests::ray_misses_cube ... ok
[INFO] [stdout] test shape::cylinder::tests::default_closed_value_for_cylinder ... ok
[INFO] [stdout] test shape::cylinder::tests::intersect_constrained_cylinder ... ok
[INFO] [stdout] test shape::cylinder::tests::default_min_and_max_for_cylinder ... ok
[INFO] [stdout] test shape::cylinder::tests::intersecting_caps_of_closed_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 ray::tests::under_point_offset_below_surface ... ok
[INFO] [stdout] test shape::cylinder::tests::ray_misses_cylinder ... ok
[INFO] [stdout] test shape::cylinder::tests::ray_strikes_cylinder ... 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::Schlick_approximation_under_total_internal_reflection ... ok
[INFO] [stdout] test shape::sphere::tests::reflect_vector_off_slant ... ok
[INFO] [stdout] test shape::sphere::tests::sphere_normal_at_nonaxial ... ok
[INFO] [stdout] test shape::cone::tests::computing_normal_vector_on_cone ... ok
[INFO] [stdout] test shape::plane::tests::normal_of_plane_is_constant ... ok
[INFO] [stdout] test shape::plane::tests::ray_intersect_from_below ... ok
[INFO] [stdout] test shape::sphere::tests::helper_for_producing_sphere_with_glassy_material ... ok
[INFO] [stdout] test shape::sphere::tests::normal_is_normalized ... 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 matrix::tests::another_inverse_again ... ok
[INFO] [stdout] test shape::sphere::tests::sphere_normal_on_x ... ok
[INFO] [stdout] test shape::cube::tests::ray_intersect_cube ... ok
[INFO] [stdout] test shape::cone::tests::intersecting_cone_with_ray ... ok
[INFO] [stdout] test shape::cone::tests::intersecting_cone_with_ray_parallel_to_one_half ... 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 pattern::stripe::tests::lighting_with_pattern_applied ... ok
[INFO] [stdout] test transformations::tests::inverse_rotation_around_x ... 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::sphere::tests::sphere_normal_on_z ... ok
[INFO] [stdout] test shape::tests::assign_transformation ... ok
[INFO] [stdout] test pattern::stripe::tests::stripe_constant_in_z ... ok
[INFO] [stdout] test shape::tests::compute_normal_of_translated_shape ... ok
[INFO] [stdout] test shape::tests::intersect_translated_sphere_with_ray ... ok
[INFO] [stdout] test pattern::tests::pattern_with_both_transforms ... ok
[INFO] [stdout] test transformations::tests::inverse_scaling_a_vector ... ok
[INFO] [stdout] test shape::tests::compute_normal_of_transformed_shape ... ok
[INFO] [stdout] test shape::tests::default_material ... ok
[INFO] [stdout] test shape::tests::assign_material ... ok
[INFO] [stdout] test transformations::tests::scaling_a_point ... ok
[INFO] [stdout] test transformations::tests::reflection ... ok
[INFO] [stdout] test transformations::tests::multiply_by_transformation ... ok
[INFO] [stdout] test transformations::tests::rotate_around_z ... ok
[INFO] [stdout] test transformations::tests::multiply_by_translation_inverse ... ok
[INFO] [stdout] test shape::tests::default_transformation ... ok
[INFO] [stdout] test transformations::tests::rotate_around_y ... ok
[INFO] [stdout] test transformations::tests::rotate_around_x ... ok
[INFO] [stdout] test transformations::tests::shear_z_by_x ... 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 tuple::color::tests::multiplication_by_scalar ... ok
[INFO] [stdout] test transformations::tests::shear_x_by_z ... ok
[INFO] [stdout] test tuple::tests::point_minus_point ... ok
[INFO] [stdout] test transformations::tests::shear_x_by_y ... ok
[INFO] [stdout] test tuple::tests::point_plus_vector ... ok
[INFO] [stdout] test transformations::tests::transformation_matrix_for_default_orientation ... ok
[INFO] [stdout] test tuple::color::tests::subtraction ... ok
[INFO] [stdout] test transformations::tests::view_transformation_moves_the_world ... ok
[INFO] [stdout] test transformations::tests::shear_y_by_z ... ok
[INFO] [stdout] test transformations::tests::shear_y_by_x ... 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::scaling_a_vector ... ok
[INFO] [stdout] test world::tests::hit_when_intersection_occurs_on_interior ... ok
[INFO] [stdout] test tuple::tests::vector_plus_vector ... ok
[INFO] [stdout] test tuple::color::tests::addition ... ok
[INFO] [stdout] test world::tests::no_shadow_when_not_colinear_with_point_and_light ... ok
[INFO] [stdout] test world::tests::intersect_world_with_ray ... ok
[INFO] [stdout] test world::tests::create_a_world ... ok
[INFO] [stdout] test world::tests::default_world ... ok
[INFO] [stdout] test world::tests::no_shadow_when_object_behind_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_reflection_vector ... 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::hit_when_intersection_occurs_on_exterior ... ok
[INFO] [stdout] test world::tests::shade_hit_with_transparent_material ... ok
[INFO] [stdout] test world::tests::refracted_color_with_opaque_surface ... ok
[INFO] [stdout] test world::tests::no_shadow_when_object_behind_point ... 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::reflection_for_nonreflective_material ... ok
[INFO] [stdout] test world::tests::precomputing_state_of_intersection ... ok
[INFO] [stdout] test world::tests::refracted_color_with_refracted_ray ... 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::shade_hit_with_reflective_material ... ok
[INFO] [stdout] test world::tests::refracted_color_at_maximum_recursive_depth ... ok
[INFO] [stdout] test world::tests::shadow_when_object_between_point_and_light ... ok
[INFO] [stdout] test world::tests::color_at_with_mutually_reflective_surfaces ... ok
[INFO] [stdout] test world::tests::reflected_color_at_max_recursive_depth ... ok
[INFO] [stdout] test world::tests::shade_hit_with_reflective_transparent_material ... ok
[INFO] [stdout] test world::tests::shading_an_intersection_from_inside ... ok
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/ch2-ae3a8c4842c9c062)
[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 0.28s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 9 tests
[INFO] [stdout] test canvas::tests::canvas_creation ... ok
[INFO] [stdout] test tuple::color::tests::color_multiplication ... ok
[INFO] [stdout] test tuple::color::tests::addition ... ok
[INFO] [stdout] test canvas::tests::write_pixel ... ok
[INFO] [stdout] test tuple::tests::point_minus_point ... ok
[INFO] [stdout] test tuple::color::tests::subtraction ... 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] 
[INFO] [stdout] test result: ok. 9 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/ch3-7066003e2a8c6b4f)
[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::determinant_4x4 ... ok
[INFO] [stdout] test matrix::tests::minor_3x3 ... ok
[INFO] [stdout] test matrix::tests::create_2x2 ... ok
[INFO] [stdout] test matrix::tests::determinant_3x3 ... ok
[INFO] [stdout] test matrix::tests::multiply_by_matrix ... ok
[INFO] [stdout] test matrix::tests::inverse ... ok
[INFO] [stdout] test matrix::tests::inequality ... ok
[INFO] [stdout] test matrix::tests::submatrix_4x4 ... ok
[INFO] [stdout] test matrix::tests::multiply_by_identity ... ok
[INFO] [stdout] test matrix::tests::transpose_identity ... ok
[INFO] [stdout] test matrix::tests::not_invertible ... ok
[INFO] [stdout] test tuple::color::tests::subtraction ... ok
[INFO] [stdout] test matrix::tests::submatrix_3x3 ... ok
[INFO] [stdout] test matrix::tests::transpose_matrix ... ok
[INFO] [stdout] test tuple::color::tests::addition ... ok
[INFO] [stdout] test tuple::tests::point_minus_point ... ok
[INFO] [stdout] test tuple::tests::vector_plus_vector ... ok
[INFO] [stdout] test matrix::tests::another_inverse_again ... ok
[INFO] [stdout] test matrix::tests::create_3x3 ... ok
[INFO] [stdout] test tuple::tests::point_plus_vector ... ok
[INFO] [stdout] test matrix::tests::multiply_by_point ... ok
[INFO] [stdout] test matrix::tests::determinant_2x2 ... ok
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/ch4-ec74fba0277b8293)
[INFO] [stdout] test matrix::tests::equality ... ok
[INFO] [stdout] test matrix::tests::invertible ... ok
[INFO] [stdout] test tuple::color::tests::multiplication_by_scalar ... ok
[INFO] [stdout] test matrix::tests::cofactor_3x3 ... ok
[INFO] [stdout] test tuple::color::tests::color_multiplication ... ok
[INFO] [stdout] test matrix::tests::inverse_multiplication ... ok
[INFO] [stdout] test matrix::tests::create_4x4 ... ok
[INFO] [stdout] test matrix::tests::another_inverse ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 32 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.04s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 51 tests
[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::create_4x4 ... ok
[INFO] [stdout] test matrix::tests::inequality ... ok
[INFO] [stdout] test matrix::tests::determinant_4x4 ... ok
[INFO] [stdout] test matrix::tests::minor_3x3 ... ok
[INFO] [stdout] test matrix::tests::multiply_by_matrix ... ok
[INFO] [stdout] test matrix::tests::inverse_multiplication ... ok
[INFO] [stdout] test matrix::tests::create_3x3 ... ok
[INFO] [stdout] test matrix::tests::invertible ... ok
[INFO] [stdout] test matrix::tests::multiply_by_identity ... ok
[INFO] [stdout] test matrix::tests::determinant_2x2 ... ok
[INFO] [stdout] test matrix::tests::determinant_3x3 ... ok
[INFO] [stdout] test matrix::tests::inverse ... ok
[INFO] [stdout] test canvas::tests::write_pixel ... ok
[INFO] [stdout] test matrix::tests::another_inverse_again ... ok
[INFO] [stdout] test matrix::tests::equality ... ok
[INFO] [stdout] test matrix::tests::not_invertible ... ok
[INFO] [stdout] test matrix::tests::multiply_by_point ... ok
[INFO] [stdout] test matrix::tests::submatrix_3x3 ... ok
[INFO] [stdout] test matrix::tests::submatrix_4x4 ... ok
[INFO] [stdout] test transformations::tests::chained_transformations_applied_in_reverse ... ok
[INFO] [stdout] test matrix::tests::transpose_identity ... ok
[INFO] [stdout] test matrix::tests::transpose_matrix ... ok
[INFO] [stdout] test transformations::tests::individual_transformations_applied_in_sequence ... 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::multiply_by_transformation ... ok
[INFO] [stdout] test transformations::tests::rotate_around_z ... ok
[INFO] [stdout] test transformations::tests::reflection ... ok
[INFO] [stdout] test transformations::tests::scaling_a_vector ... ok
[INFO] [stdout] test transformations::tests::rotate_around_x ... 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_z_by_x ... 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 canvas::tests::canvas_creation ... ok
[INFO] [stdout] test tuple::color::tests::multiplication_by_scalar ... ok
[INFO] [stdout] test tuple::tests::point_minus_point ... ok
[INFO] [stdout] test transformations::tests::inverse_rotation_around_x ... ok
[INFO] [stdout] test tuple::tests::vector_plus_vector ... ok
[INFO] [stdout] test tuple::color::tests::addition ... ok
[INFO] [stdout] test transformations::tests::scaling_a_point ... ok
[INFO] [stdout] test tuple::color::tests::subtraction ... ok
[INFO] [stdout] test transformations::tests::shear_x_by_y ... ok
[INFO] [stdout] test tuple::tests::point_plus_vector ... ok
[INFO] [stdout] test transformations::tests::rotate_around_y ... 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 0.03s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/ch5-498bd89ceb5a32cf)
[INFO] [stdout] 
[INFO] [stdout] running 71 tests
[INFO] [stdout] test matrix::tests::another_inverse ... ok
[INFO] [stdout] test matrix::tests::another_inverse_again ... ok
[INFO] [stdout] test matrix::tests::inequality ... ok
[INFO] [stdout] test matrix::tests::create_4x4 ... ok
[INFO] [stdout] test matrix::tests::cofactor_3x3 ... ok
[INFO] [stdout] test canvas::tests::write_pixel ... ok
[INFO] [stdout] test matrix::tests::create_3x3 ... ok
[INFO] [stdout] test matrix::tests::determinant_2x2 ... ok
[INFO] [stdout] test matrix::tests::equality ... ok
[INFO] [stdout] test matrix::tests::minor_3x3 ... ok
[INFO] [stdout] test matrix::tests::multiply_by_point ... ok
[INFO] [stdout] test matrix::tests::invertible ... ok
[INFO] [stdout] test matrix::tests::not_invertible ... ok
[INFO] [stdout] test matrix::tests::multiply_by_matrix ... ok
[INFO] [stdout] test matrix::tests::inverse_multiplication ... ok
[INFO] [stdout] test canvas::tests::canvas_creation ... ok
[INFO] [stdout] test matrix::tests::transpose_identity ... ok
[INFO] [stdout] test matrix::tests::determinant_3x3 ... ok
[INFO] [stdout] test matrix::tests::transpose_matrix ... ok
[INFO] [stdout] test ray::tests::hit_when_some_negative_t ... ok
[INFO] [stdout] test ray::tests::hit_when_all_positive_t ... ok
[INFO] [stdout] test matrix::tests::submatrix_4x4 ... 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::ray_intersect_sphere_at_tangent ... ok
[INFO] [stdout] test ray::tests::ray_intersect_sphere_at_two_points ... ok
[INFO] [stdout] test ray::tests::default_sphere_transformation ... ok
[INFO] [stdout] test ray::tests::aggregating_intersections ... ok
[INFO] [stdout] test matrix::tests::submatrix_3x3 ... ok
[INFO] [stdout] test matrix::tests::create_2x2 ... ok
[INFO] [stdout] test matrix::tests::multiply_by_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 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 ray::tests::intersect_translated_sphere_with_ray ... 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::ray_misses_sphere ... ok
[INFO] [stdout] test ray::tests::ray_originates_in_sphere ... ok
[INFO] [stdout] test ray::tests::hit_is_always_lowest_nonnegative_intersection ... ok
[INFO] [stdout] test ray::tests::scale_ray ... ok
[INFO] [stdout] test ray::tests::hit_when_all_negative_t ... ok
[INFO] [stdout] test matrix::tests::inverse ... ok
[INFO] [stdout] test ray::tests::translate_ray ... ok
[INFO] [stdout] test ray::tests::sphere_behind_ray ... ok
[INFO] [stdout] test transformations::tests::reflection ... ok
[INFO] [stdout] test transformations::tests::rotate_around_z ... ok
[INFO] [stdout] test transformations::tests::shear_z_by_x ... ok
[INFO] [stdout] test transformations::tests::shear_x_by_y ... ok
[INFO] [stdout] test tuple::color::tests::addition ... ok
[INFO] [stdout] test transformations::tests::rotate_around_x ... ok
[INFO] [stdout] test transformations::tests::scaling_a_vector ... ok
[INFO] [stdout] test tuple::color::tests::subtraction ... ok
[INFO] [stdout] test tuple::tests::point_plus_vector ... ok
[INFO] [stdout] test transformations::tests::shear_z_by_y ... ok
[INFO] [stdout] test tuple::tests::vector_plus_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::scaling_a_point ... ok
[INFO] [stdout] test matrix::tests::determinant_4x4 ... ok
[INFO] [stdout] test tuple::tests::point_minus_point ... ok
[INFO] [stdout] test transformations::tests::translation_does_not_affect_vector ... ok
[INFO] [stdout] test transformations::tests::multiply_by_transformation ... 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::multiply_by_translation_inverse ... ok
[INFO] [stdout] test transformations::tests::inverse_scaling_a_vector ... ok
[INFO] [stdout] test tuple::color::tests::color_multiplication ... ok
[INFO] [stdout] test tuple::color::tests::multiplication_by_scalar ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 71 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.03s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/ch6-ecb7cc944facb3ea)
[INFO] [stdout] 
[INFO] [stdout] running 89 tests
[INFO] [stdout] test matrix::tests::create_3x3 ... ok
[INFO] [stdout] test matrix::tests::determinant_2x2 ... ok
[INFO] [stdout] test lights::tests::point_light_has_position_and_intensity ... ok
[INFO] [stdout] test matrix::tests::create_2x2 ... ok
[INFO] [stdout] test matrix::tests::determinant_4x4 ... ok
[INFO] [stdout] test matrix::tests::cofactor_3x3 ... 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::create_4x4 ... ok
[INFO] [stdout] test matrix::tests::another_inverse ... ok
[INFO] [stdout] test matrix::tests::inequality ... ok
[INFO] [stdout] test matrix::tests::equality ... ok
[INFO] [stdout] test matrix::tests::inverse ... ok
[INFO] [stdout] test matrix::tests::inverse_multiplication ... ok
[INFO] [stdout] test materials::tests::lighting_with_eye_between_light_and_surface ... ok
[INFO] [stdout] test matrix::tests::determinant_3x3 ... ok
[INFO] [stdout] test materials::tests::lighting_with_eye_in_reflection_path ... ok
[INFO] [stdout] test matrix::tests::another_inverse_again ... 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_4x4 ... ok
[INFO] [stdout] test matrix::tests::transpose_matrix ... ok
[INFO] [stdout] test ray::tests::change_sphere_transformation ... ok
[INFO] [stdout] test materials::tests::lighting_with_eye_offset_by_45 ... ok
[INFO] [stdout] test canvas::tests::canvas_creation ... ok
[INFO] [stdout] test canvas::tests::write_pixel ... ok
[INFO] [stdout] test matrix::tests::minor_3x3 ... ok
[INFO] [stdout] test matrix::tests::invertible ... 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_some_negative_t ... ok
[INFO] [stdout] test ray::tests::intersect_sets_object_on_intersection ... ok
[INFO] [stdout] test ray::tests::hit_is_always_lowest_nonnegative_intersection ... ok
[INFO] [stdout] test matrix::tests::multiply_by_point ... ok
[INFO] [stdout] test ray::tests::aggregating_intersections ... ok
[INFO] [stdout] test matrix::tests::transpose_identity ... 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::hit_when_all_positive_t ... ok
[INFO] [stdout] test matrix::tests::not_invertible ... ok
[INFO] [stdout] test matrix::tests::submatrix_3x3 ... ok
[INFO] [stdout] test ray::tests::intersect_translated_sphere_with_ray ... ok
[INFO] [stdout] test shapes::sphere::tests::compute_normal_of_transformed_sphere ... ok
[INFO] [stdout] test shapes::sphere::tests::reflect_vector_off_slant ... ok
[INFO] [stdout] test ray::tests::ray_originates_in_sphere ... ok
[INFO] [stdout] test shapes::sphere::tests::compute_normal_of_translated_sphere ... 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 ray::tests::ray_intersect_sphere_at_tangent ... ok
[INFO] [stdout] test ray::tests::point_from_distance ... ok
[INFO] [stdout] test ray::tests::ray_intersect_sphere_at_two_points ... ok
[INFO] [stdout] test transformations::tests::inverse_scaling_a_vector ... ok
[INFO] [stdout] test ray::tests::ray_misses_sphere ... ok
[INFO] [stdout] test materials::tests::default_material ... ok
[INFO] [stdout] test transformations::tests::multiply_by_transformation ... ok
[INFO] [stdout] test ray::tests::scale_ray ... ok
[INFO] [stdout] test transformations::tests::individual_transformations_applied_in_sequence ... ok
[INFO] [stdout] test ray::tests::translate_ray ... ok
[INFO] [stdout] test transformations::tests::chained_transformations_applied_in_reverse ... ok
[INFO] [stdout] test shapes::sphere::tests::sphere_normal_at_nonaxial ... ok
[INFO] [stdout] test transformations::tests::shear_x_by_y ... ok
[INFO] [stdout] test transformations::tests::shear_x_by_z ... ok
[INFO] [stdout] test shapes::sphere::tests::reflect_vector_at_45 ... 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::rotate_around_x ... ok
[INFO] [stdout] test ray::tests::create_and_query_ray ... ok
[INFO] [stdout] test transformations::tests::rotate_around_y ... ok
[INFO] [stdout] test tuple::color::tests::addition ... ok
[INFO] [stdout] test tuple::color::tests::color_multiplication ... ok
[INFO] [stdout] test shapes::sphere::tests::normal_is_normalized ... ok
[INFO] [stdout] test ray::tests::sphere_behind_ray ... ok
[INFO] [stdout] test transformations::tests::inverse_rotation_around_x ... ok
[INFO] [stdout] test tuple::tests::point_plus_vector ... ok
[INFO] [stdout] test transformations::tests::scaling_a_vector ... ok
[INFO] [stdout] test tuple::tests::vector_plus_vector ... ok
[INFO] [stdout] test tuple::color::tests::multiplication_by_scalar ... ok
[INFO] [stdout] test transformations::tests::translation_does_not_affect_vector ... ok
[INFO] [stdout] test transformations::tests::shear_z_by_y ... ok
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/ch7-7a42340e7d6d9b5a)
[INFO] [stdout] test transformations::tests::multiply_by_translation_inverse ... ok
[INFO] [stdout] test transformations::tests::reflection ... ok
[INFO] [stdout] test shapes::sphere::tests::sphere_normal_on_y ... ok
[INFO] [stdout] test transformations::tests::rotate_around_z ... ok
[INFO] [stdout] test shapes::sphere::tests::sphere_normal_on_z ... ok
[INFO] [stdout] test tuple::tests::point_minus_point ... ok
[INFO] [stdout] test tuple::color::tests::subtraction ... ok
[INFO] [stdout] test transformations::tests::shear_z_by_x ... ok
[INFO] [stdout] test shapes::sphere::tests::sphere_normal_on_x ... ok
[INFO] [stdout] test transformations::tests::shear_y_by_z ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 89 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.03s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 111 tests
[INFO] [stdout] test materials::tests::lighting_with_eye_between_light_and_surface ... ok
[INFO] [stdout] test materials::tests::lighting_with_eye_offset_by_45 ... ok
[INFO] [stdout] test camera::tests::constructing_ray_through_center_of_canvas ... ok
[INFO] [stdout] test materials::tests::default_material ... ok
[INFO] [stdout] test canvas::tests::write_pixel ... 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 matrix::tests::determinant_2x2 ... ok
[INFO] [stdout] test matrix::tests::create_4x4 ... 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 camera::tests::constructing_a_camera ... ok
[INFO] [stdout] test matrix::tests::inverse_multiplication ... ok
[INFO] [stdout] test materials::tests::lighting_with_light_offset_by_45 ... ok
[INFO] [stdout] test materials::tests::lighting_with_light_behind_surface ... ok
[INFO] [stdout] test canvas::tests::canvas_creation ... ok
[INFO] [stdout] test matrix::tests::invertible ... ok
[INFO] [stdout] test matrix::tests::another_inverse ... 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 matrix::tests::another_inverse_again ... ok
[INFO] [stdout] test matrix::tests::minor_3x3 ... ok
[INFO] [stdout] test matrix::tests::cofactor_3x3 ... ok
[INFO] [stdout] test matrix::tests::create_3x3 ... ok
[INFO] [stdout] test matrix::tests::create_2x2 ... ok
[INFO] [stdout] test materials::tests::lighting_with_eye_in_reflection_path ... ok
[INFO] [stdout] test lights::tests::point_light_has_position_and_intensity ... 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 ray::tests::aggregating_intersections ... ok
[INFO] [stdout] test ray::tests::change_sphere_transformation ... ok
[INFO] [stdout] test matrix::tests::transpose_matrix ... 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 ray::tests::hit_when_some_negative_t ... ok
[INFO] [stdout] test matrix::tests::submatrix_4x4 ... ok
[INFO] [stdout] test ray::tests::intersect_sets_object_on_intersection ... ok
[INFO] [stdout] test ray::tests::intersect_translated_sphere_with_ray ... 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::ray_intersect_sphere_at_tangent ... 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::scale_ray ... ok
[INFO] [stdout] test shapes::sphere::tests::compute_normal_of_transformed_sphere ... 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::sphere_may_be_assigned_material ... ok
[INFO] [stdout] test shapes::sphere::tests::sphere_has_default_material ... ok
[INFO] [stdout] test shapes::sphere::tests::reflect_vector_off_slant ... ok
[INFO] [stdout] test shapes::sphere::tests::sphere_normal_at_nonaxial ... ok
[INFO] [stdout] test shapes::sphere::tests::reflect_vector_at_45 ... 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::inverse_rotation_around_x ... ok
[INFO] [stdout] test transformations::tests::individual_transformations_applied_in_sequence ... 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 matrix::tests::submatrix_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::sphere_behind_ray ... ok
[INFO] [stdout] test ray::tests::intersect_scaled_sphere_with_ray ... ok
[INFO] [stdout] test transformations::tests::multiply_by_translation_inverse ... ok
[INFO] [stdout] test transformations::tests::shear_x_by_y ... ok
[INFO] [stdout] test shapes::sphere::tests::normal_is_normalized ... ok
[INFO] [stdout] test transformations::tests::scaling_a_vector ... ok
[INFO] [stdout] test transformations::tests::shear_y_by_x ... ok
[INFO] [stdout] test shapes::sphere::tests::sphere_normal_on_y ... ok
[INFO] [stdout] test shapes::sphere::tests::sphere_normal_on_x ... ok
[INFO] [stdout] test transformations::tests::shear_z_by_y ... ok
[INFO] [stdout] test ray::tests::ray_intersect_sphere_at_two_points ... ok
[INFO] [stdout] test transformations::tests::view_transformation_matrix_looking_in_positive_z ... ok
[INFO] [stdout] test shapes::sphere::tests::sphere_normal_on_z ... 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 tuple::color::tests::addition ... ok
[INFO] [stdout] test tuple::color::tests::multiplication_by_scalar ... ok
[INFO] [stdout] test transformations::tests::translation_does_not_affect_vector ... ok
[INFO] [stdout] test tuple::color::tests::color_multiplication ... 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::default_world ... ok
[INFO] [stdout] test world::tests::hit_when_intersection_occurs_on_exterior ... ok
[INFO] [stdout] test matrix::tests::transpose_identity ... ok
[INFO] [stdout] test world::tests::hit_when_intersection_occurs_on_interior ... ok
[INFO] [stdout] test world::tests::shading_an_intersection ... ok
[INFO] [stdout] test world::tests::precomputing_state_of_intersection ... ok
[INFO] [stdout] test world::tests::intersect_world_with_ray ... 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::scaling_a_point ... ok
[INFO] [stdout] test transformations::tests::rotate_around_y ... ok
[INFO] [stdout] test transformations::tests::rotate_around_x ... ok
[INFO] [stdout] test transformations::tests::rotate_around_z ... ok
[INFO] [stdout] test transformations::tests::shear_z_by_x ... ok
[INFO] [stdout] test world::tests::color_when_ray_hits ... ok
[INFO] [stdout] test world::tests::color_when_ray_misses ... ok
[INFO] [stdout] test world::tests::shading_an_intersection_from_inside ... ok
[INFO] [stdout] test world::tests::color_with_intersection_behind_ray ... ok
[INFO] [stdout] test world::tests::create_a_world ... 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 0.25s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/ch8-1148bb66bbc30b1d)
[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 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 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::inverse_multiplication ... 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::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 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 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::intersect_scaled_sphere_with_ray ... ok
[INFO] [stdout] test ray::tests::intersect_sets_object_on_intersection ... ok
[INFO] [stdout] test ray::tests::intersect_translated_sphere_with_ray ... 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::ray_intersect_sphere_at_tangent ... 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 canvas::tests::write_pixel ... ok
[INFO] [stdout] test matrix::tests::cofactor_3x3 ... ok
[INFO] [stdout] test camera::tests::pixel_size_for_vertical_canvas ... ok
[INFO] [stdout] test canvas::tests::canvas_creation ... ok
[INFO] [stdout] test lights::tests::point_light_has_position_and_intensity ... ok
[INFO] [stdout] test materials::tests::lighting_with_surface_in_shadow ... ok
[INFO] [stdout] test ray::tests::ray_intersect_sphere_at_two_points ... ok
[INFO] [stdout] test materials::tests::default_material ... ok
[INFO] [stdout] test matrix::tests::another_inverse_again ... ok
[INFO] [stdout] test camera::tests::constructing_ray_through_corner_of_canvas ... ok
[INFO] [stdout] test ray::tests::ray_misses_sphere ... ok
[INFO] [stdout] test camera::tests::constructing_ray_when_camera_transformed ... ok
[INFO] [stdout] test materials::tests::lighting_with_eye_offset_by_45 ... ok
[INFO] [stdout] test ray::tests::scale_ray ... ok
[INFO] [stdout] test shapes::sphere::tests::reflect_vector_at_45 ... ok
[INFO] [stdout] test ray::tests::translate_ray ... ok
[INFO] [stdout] test ray::tests::ray_originates_in_sphere ... ok
[INFO] [stdout] test shapes::sphere::tests::compute_normal_of_transformed_sphere ... ok
[INFO] [stdout] test ray::tests::sphere_behind_ray ... ok
[INFO] [stdout] test shapes::sphere::tests::compute_normal_of_translated_sphere ... ok
[INFO] [stdout] test shapes::sphere::tests::normal_is_normalized ... ok
[INFO] [stdout] test matrix::tests::another_inverse ... ok
[INFO] [stdout] test transformations::tests::multiply_by_translation_inverse ... 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_z ... ok
[INFO] [stdout] test transformations::tests::rotate_around_x ... 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_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_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 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::color::tests::color_multiplication ... ok
[INFO] [stdout] test shapes::sphere::tests::sphere_has_default_material ... ok
[INFO] [stdout] test transformations::tests::rotate_around_y ... ok
[INFO] [stdout] test transformations::tests::reflection ... ok
[INFO] [stdout] test transformations::tests::arbitrary_view_transformation ... ok
[INFO] [stdout] test shapes::sphere::tests::reflect_vector_off_slant ... ok
[INFO] [stdout] test tuple::tests::vector_plus_vector ... ok
[INFO] [stdout] test transformations::tests::inverse_rotation_around_x ... ok
[INFO] [stdout] test shapes::sphere::tests::sphere_may_be_assigned_material ... ok
[INFO] [stdout] test tuple::color::tests::subtraction ... ok
[INFO] [stdout] test tuple::tests::point_minus_point ... ok
[INFO] [stdout] test shapes::sphere::tests::sphere_normal_at_nonaxial ... ok
[INFO] [stdout] test tuple::tests::point_plus_vector ... 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 world::tests::intersect_world_with_ray ... 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::hit_when_intersection_occurs_on_interior ... 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 transformations::tests::chained_transformations_applied_in_reverse ... ok
[INFO] [stdout] test transformations::tests::individual_transformations_applied_in_sequence ... 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::no_shadow_when_not_colinear_with_point_and_light ... ok
[INFO] [stdout] test world::tests::shade_hit_given_intersection_in_shadow ... ok
[INFO] [stdout] test world::tests::no_shadow_when_object_behind_point ... 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::shadow_when_object_between_point_and_light ... ok
[INFO] [stdout] test world::tests::no_shadow_when_object_behind_light ... ok
[INFO] [stdout] test world::tests::precomputing_state_of_intersection ... 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 0.23s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/ch9-223c5d7f66cd312e)
[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 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 camera::tests::constructing_ray_when_camera_transformed ... ok
[INFO] [stdout] test matrix::tests::another_inverse ... ok
[INFO] [stdout] test camera::tests::pixel_size_for_vertical_canvas ... ok
[INFO] [stdout] test materials::tests::lighting_with_eye_in_reflection_path ... ok
[INFO] [stdout] test materials::tests::default_material ... ok
[INFO] [stdout] test canvas::tests::canvas_creation ... ok
[INFO] [stdout] test materials::tests::lighting_with_eye_between_light_and_surface ... ok
[INFO] [stdout] test matrix::tests::another_inverse_again ... ok
[INFO] [stdout] test matrix::tests::create_2x2 ... 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::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::multiply_by_point ... ok
[INFO] [stdout] test matrix::tests::create_3x3 ... ok
[INFO] [stdout] test matrix::tests::create_4x4 ... ok
[INFO] [stdout] test camera::tests::pixel_size_for_horizontal_canvas ... ok
[INFO] [stdout] test matrix::tests::inequality ... ok
[INFO] [stdout] test matrix::tests::invertible ... ok
[INFO] [stdout] test matrix::tests::transpose_matrix ... ok
[INFO] [stdout] test ray::tests::aggregating_intersections ... 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 ray::tests::hit_when_all_positive_t ... ok
[INFO] [stdout] test matrix::tests::equality ... ok
[INFO] [stdout] test ray::tests::intersect_scaled_sphere_with_ray ... ok
[INFO] [stdout] test matrix::tests::inverse_multiplication ... ok
[INFO] [stdout] test ray::tests::intersect_sets_object_on_intersection ... ok
[INFO] [stdout] test ray::tests::create_and_query_ray ... ok
[INFO] [stdout] test ray::tests::hit_when_some_negative_t ... ok
[INFO] [stdout] test matrix::tests::not_invertible ... ok
[INFO] [stdout] test ray::tests::hit_when_all_negative_t ... ok
[INFO] [stdout] test matrix::tests::submatrix_3x3 ... ok
[INFO] [stdout] test ray::tests::ray_intersect_sphere_at_tangent ... ok
[INFO] [stdout] test matrix::tests::submatrix_4x4 ... ok
[INFO] [stdout] test matrix::tests::transpose_identity ... ok
[INFO] [stdout] test lights::tests::point_light_has_position_and_intensity ... ok
[INFO] [stdout] test canvas::tests::write_pixel ... 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::intersection_encapsulates_t_and_object ... ok
[INFO] [stdout] test ray::tests::ray_intersect_sphere_at_two_points ... ok
[INFO] [stdout] test shapes::plane::tests::ray_intersect_from_above ... ok
[INFO] [stdout] test shapes::sphere::tests::reflect_vector_off_slant ... ok
[INFO] [stdout] test shapes::sphere::tests::sphere_normal_at_nonaxial ... ok
[INFO] [stdout] test shapes::sphere::tests::sphere_normal_on_x ... 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 shapes::tests::assign_transformation ... ok
[INFO] [stdout] test shapes::tests::assign_material ... ok
[INFO] [stdout] test shapes::tests::compute_normal_of_translated_shape ... ok
[INFO] [stdout] test shapes::tests::compute_normal_of_transformed_shape ... ok
[INFO] [stdout] test shapes::tests::default_transformation ... ok
[INFO] [stdout] test shapes::tests::default_material ... ok
[INFO] [stdout] test ray::tests::scale_ray ... ok
[INFO] [stdout] test shapes::plane::tests::intersect_ray_parallel ... ok
[INFO] [stdout] test matrix::tests::cofactor_3x3 ... ok
[INFO] [stdout] test shapes::sphere::tests::reflect_vector_at_45 ... ok
[INFO] [stdout] test shapes::plane::tests::ray_intersect_from_below ... ok
[INFO] [stdout] test shapes::tests::intersect_translated_sphere_with_ray ... ok
[INFO] [stdout] test ray::tests::sphere_behind_ray ... ok
[INFO] [stdout] test camera::tests::constructing_ray_through_corner_of_canvas ... ok
[INFO] [stdout] test shapes::sphere::tests::normal_is_normalized ... ok
[INFO] [stdout] test ray::tests::translate_ray ... ok
[INFO] [stdout] test ray::tests::ray_originates_in_sphere ... ok
[INFO] [stdout] test shapes::tests::intersect_scaled_shape_with_ray ... ok
[INFO] [stdout] test transformations::tests::rotate_around_x ... 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::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::reflection ... 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 transformations::tests::arbitrary_view_transformation ... ok
[INFO] [stdout] test shapes::plane::tests::normal_of_plane_is_constant ... ok
[INFO] [stdout] test transformations::tests::scaling_a_point ... 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::tests::point_minus_point ... ok
[INFO] [stdout] test tuple::color::tests::subtraction ... ok
[INFO] [stdout] test tuple::tests::point_plus_vector ... ok
[INFO] [stdout] test tuple::tests::vector_plus_vector ... ok
[INFO] [stdout] test world::tests::color_when_ray_hits ... 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::color_with_intersection_behind_ray ... ok
[INFO] [stdout] test transformations::tests::rotate_around_y ... ok
[INFO] [stdout] test world::tests::default_world ... ok
[INFO] [stdout] test tuple::color::tests::addition ... ok
[INFO] [stdout] test tuple::color::tests::color_multiplication ... 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 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_scaling_a_vector ... ok
[INFO] [stdout] test transformations::tests::multiply_by_translation_inverse ... ok
[INFO] [stdout] test world::tests::hit_when_intersection_occurs_on_interior ... ok
[INFO] [stdout] test transformations::tests::shear_x_by_z ... 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::no_shadow_when_object_behind_point ... ok
[INFO] [stdout] test world::tests::shade_hit_given_intersection_in_shadow ... ok
[INFO] [stdout] test world::tests::no_shadow_when_object_behind_light ... ok
[INFO] [stdout] test world::tests::precomputing_state_of_intersection ... ok
[INFO] [stdout] test world::tests::shading_an_intersection_from_inside ... 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 transformations::tests::rotate_around_z ... ok
[INFO] [stdout] test ray::tests::ray_misses_sphere ... ok
[INFO] [stdout] test shapes::plane::tests::intersect_coplanar_ray ... 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 0.20s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "1fc276b6f8082a4efb3ea3ad51fb527927e87168bb2d8ad9bf3be349047dbd9c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1fc276b6f8082a4efb3ea3ad51fb527927e87168bb2d8ad9bf3be349047dbd9c", kill_on_drop: false }`
[INFO] [stdout] 1fc276b6f8082a4efb3ea3ad51fb527927e87168bb2d8ad9bf3be349047dbd9c