[INFO] cloning repository https://github.com/ffabiosales/wgpu_book
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ffabiosales/wgpu_book" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fffabiosales%2Fwgpu_book", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fffabiosales%2Fwgpu_book'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3d9c30832129a6367e92ad5e7736d21e4ede9611
[INFO] checking ffabiosales/wgpu_book against master#4eb62535fc12dd1a63fd43a4173e224e79313c4d for pr-158816
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fffabiosales%2Fwgpu_book" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/ffabiosales/wgpu_book
[INFO] removed 0 missing examples
[INFO] finished tweaking git repo https://github.com/ffabiosales/wgpu_book
[INFO] tweaked toml for git repo https://github.com/ffabiosales/wgpu_book written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/ffabiosales/wgpu_book on toolchain 4eb62535fc12dd1a63fd43a4173e224e79313c4d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4eb62535fc12dd1a63fd43a4173e224e79313c4d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/ffabiosales/wgpu_book already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4eb62535fc12dd1a63fd43a4173e224e79313c4d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ndk-glue v0.3.0
[INFO] [stderr]   Downloaded owned_ttf_parser v0.15.2
[INFO] [stderr]   Downloaded rusttype v0.9.3
[INFO] [stderr]   Downloaded ndk v0.3.0
[INFO] [stderr]   Downloaded external-memory v0.0.1
[INFO] [stderr]   Downloaded renderdoc-sys v0.7.1
[INFO] [stderr]   Downloaded mio-misc v1.2.2
[INFO] [stderr]   Downloaded d3d12 v0.4.1
[INFO] [stderr]   Downloaded approx v0.4.0
[INFO] [stderr]   Downloaded wgpu-types v0.11.0
[INFO] [stderr]   Downloaded inplace_it v0.3.6
[INFO] [stderr]   Downloaded gfx-hal v0.9.0
[INFO] [stderr]   Downloaded cgmath v0.18.0
[INFO] [stderr]   Downloaded wgpu v0.11.1
[INFO] [stderr]   Downloaded glow v0.11.2
[INFO] [stderr]   Downloaded wgpu-core v0.11.3
[INFO] [stderr]   Downloaded wgpu-hal v0.11.5
[INFO] [stderr]   Downloaded winit v0.25.0
[INFO] [stderr]   Downloaded naga v0.5.0
[INFO] [stderr]   Downloaded naga v0.7.3
[INFO] [stderr]   Downloaded ash v0.33.3+1.2.191
[INFO] [stderr]   Downloaded metal v0.23.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3d5ced03c013a94a2f102a4510f48a6e9184255caf5fd8244f58017bde7f5210" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] feb2dae9012bf27d3d80f31a37ad60082fa9e79c2559d6912725bcb694fba9bc
[INFO] running `Command { std: "docker" "start" "feb2dae9012bf27d3d80f31a37ad60082fa9e79c2559d6912725bcb694fba9bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "feb2dae9012bf27d3d80f31a37ad60082fa9e79c2559d6912725bcb694fba9bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "feb2dae9012bf27d3d80f31a37ad60082fa9e79c2559d6912725bcb694fba9bc" "/opt/rustwide/cargo-home/bin/cargo" "+4eb62535fc12dd1a63fd43a4173e224e79313c4d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "feb2dae9012bf27d3d80f31a37ad60082fa9e79c2559d6912725bcb694fba9bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-w" "/opt/rustwide/workdir" "--user" "0:0" "feb2dae9012bf27d3d80f31a37ad60082fa9e79c2559d6912725bcb694fba9bc" "/opt/rustwide/cargo-home/bin/cargo" "+4eb62535fc12dd1a63fd43a4173e224e79313c4d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling wayland-sys v0.28.6
[INFO] [stderr]     Checking cty v0.2.2
[INFO] [stderr]    Compiling parking_lot_core v0.8.6
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]     Checking instant v0.1.13
[INFO] [stderr]    Compiling syn v2.0.104
[INFO] [stderr]    Compiling wayland-scanner v0.28.6
[INFO] [stderr]     Checking nix v0.20.0
[INFO] [stderr]     Checking ahash v0.8.12
[INFO] [stderr]     Checking libloading v0.7.4
[INFO] [stderr]     Checking bitflags v2.9.1
[INFO] [stderr]    Compiling nix v0.18.0
[INFO] [stderr]    Compiling khronos-egl v4.1.0
[INFO] [stderr]     Checking ttf-parser v0.15.2
[INFO] [stderr]     Checking spirv v0.2.0+1.5.4
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]     Checking gpu-alloc-types v0.2.0
[INFO] [stderr]     Checking raw-window-handle v0.4.3
[INFO] [stderr]    Compiling drm-fourcc v2.2.0
[INFO] [stderr]     Checking gpu-alloc v0.5.4
[INFO] [stderr]     Checking gpu-descriptor-types v0.1.2
[INFO] [stderr]     Checking rayon v1.10.0
[INFO] [stderr]     Checking raw-window-handle v0.3.4
[INFO] [stderr]     Checking hashbrown v0.14.5
[INFO] [stderr]    Compiling wgpu-core v0.11.3
[INFO] [stderr]     Checking parking_lot v0.11.2
[INFO] [stderr]     Checking ash v0.33.3+1.2.191
[INFO] [stderr]     Checking libloading v0.6.7
[INFO] [stderr]     Checking wgpu-types v0.11.0
[INFO] [stderr]     Checking inplace_it v0.3.6
[INFO] [stderr]     Checking glow v0.11.2
[INFO] [stderr]     Checking renderdoc-sys v0.7.1
[INFO] [stderr]     Checking xml-rs v0.8.27
[INFO] [stderr]     Checking xdg v2.5.2
[INFO] [stderr]     Checking regex-automata v0.4.9
[INFO] [stderr]     Checking dlib v0.4.2
[INFO] [stderr]     Checking crossbeam v0.8.4
[INFO] [stderr]     Checking deflate v0.8.6
[INFO] [stderr]     Checking mio v0.7.14
[INFO] [stderr]     Checking memmap2 v0.1.0
[INFO] [stderr]    Compiling cgmath v0.18.0
[INFO] [stderr]    Compiling winit v0.25.0
[INFO] [stderr]     Checking copyless v0.1.5
[INFO] [stderr]     Checking gif v0.11.4
[INFO] [stderr]     Checking num-rational v0.3.2
[INFO] [stderr]     Checking num-iter v0.1.45
[INFO] [stderr]     Checking png v0.16.8
[INFO] [stderr]     Checking approx v0.4.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking gpu-descriptor v0.2.4
[INFO] [stderr]     Checking mio-misc v1.2.2
[INFO] [stderr]    Compiling wayland-client v0.28.6
[INFO] [stderr]    Compiling wayland-protocols v0.28.6
[INFO] [stderr]     Checking owned_ttf_parser v0.15.2
[INFO] [stderr]     Checking rusttype v0.9.3
[INFO] [stderr]     Checking wayland-commons v0.28.6
[INFO] [stderr]     Checking jpeg-decoder v0.1.22
[INFO] [stderr]     Checking calloop v0.6.5
[INFO] [stderr]     Checking andrew v0.3.1
[INFO] [stderr]     Checking tiff v0.6.1
[INFO] [stderr]     Checking regex v1.11.1
[INFO] [stderr]     Checking env_logger v0.9.3
[INFO] [stderr]     Checking wayland-cursor v0.28.6
[INFO] [stderr]    Compiling thiserror-impl v1.0.69
[INFO] [stderr]    Compiling serde_derive v1.0.219
[INFO] [stderr]    Compiling futures-macro v0.3.31
[INFO] [stderr]    Compiling bytemuck_derive v1.10.0
[INFO] [stderr]     Checking bytemuck v1.23.1
[INFO] [stderr]     Checking futures-util v0.3.31
[INFO] [stderr]     Checking image v0.23.14
[INFO] [stderr]     Checking thiserror v1.0.69
[INFO] [stderr]     Checking naga v0.7.3
[INFO] [stderr]     Checking naga v0.5.0
[INFO] [stderr]     Checking serde v1.0.219
[INFO] [stderr]     Checking futures-executor v0.3.31
[INFO] [stderr]     Checking futures v0.3.31
[INFO] [stderr]     Checking wgpu-hal v0.11.5
[INFO] [stderr]     Checking external-memory v0.0.1
[INFO] [stderr]     Checking gfx-hal v0.9.0
[INFO] [stderr]     Checking wgpu v0.11.1
[INFO] [stderr]     Checking smithay-client-toolkit v0.12.3
[INFO] [stderr]     Checking wgpu_book v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `ControlFlow`, `EventLoop`, `event::*`, and `window::WindowBuilder`
[INFO] [stdout]  --> examples/ch07/sphere.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 |     event::*,
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 4 |     event_loop::{ControlFlow, EventLoop},
[INFO] [stdout]   |                  ^^^^^^^^^^^  ^^^^^^^^^
[INFO] [stdout] 5 |     window::WindowBuilder,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> examples/ch05/view_projection.rs:36:9
[INFO] [stdout]    |
[INFO] [stdout] 36 |     let mut ortho_mat = [0.0; 16];
[INFO] [stdout]    |         ----^^^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ortho_mat`
[INFO] [stdout]   --> examples/ch05/view_projection.rs:36:9
[INFO] [stdout]    |
[INFO] [stdout] 36 |     let mut ortho_mat = [0.0; 16];
[INFO] [stdout]    |         ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_ortho_mat`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `left`
[INFO] [stdout]    --> examples/ch06/../common/transforms.rs:105:5
[INFO] [stdout]     |
[INFO] [stdout] 105 |     left: f32,
[INFO] [stdout]     |     ^^^^ help: if this is intentional, prefix it with an underscore: `_left`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `right`
[INFO] [stdout]    --> examples/ch06/../common/transforms.rs:106:5
[INFO] [stdout]     |
[INFO] [stdout] 106 |     right: f32,
[INFO] [stdout]     |     ^^^^^ help: if this is intentional, prefix it with an underscore: `_right`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bottom`
[INFO] [stdout]    --> examples/ch06/../common/transforms.rs:107:5
[INFO] [stdout]     |
[INFO] [stdout] 107 |     bottom: f32,
[INFO] [stdout]     |     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_bottom`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `top`
[INFO] [stdout]    --> examples/ch06/../common/transforms.rs:108:5
[INFO] [stdout]     |
[INFO] [stdout] 108 |     top: f32,
[INFO] [stdout]     |     ^^^ help: if this is intentional, prefix it with an underscore: `_top`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `near`
[INFO] [stdout]    --> examples/ch06/../common/transforms.rs:109:5
[INFO] [stdout]     |
[INFO] [stdout] 109 |     near: f32,
[INFO] [stdout]     |     ^^^^ help: if this is intentional, prefix it with an underscore: `_near`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `far`
[INFO] [stdout]    --> examples/ch06/../common/transforms.rs:110:5
[INFO] [stdout]     |
[INFO] [stdout] 110 |     far: f32,
[INFO] [stdout]     |     ^^^ help: if this is intentional, prefix it with an underscore: `_far`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `left`
[INFO] [stdout]    --> examples/ch14/../common/transforms.rs:105:5
[INFO] [stdout]     |
[INFO] [stdout] 105 |     left: f32,
[INFO] [stdout]     |     ^^^^ help: if this is intentional, prefix it with an underscore: `_left`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `right`
[INFO] [stdout]    --> examples/ch14/../common/transforms.rs:106:5
[INFO] [stdout]     |
[INFO] [stdout] 106 |     right: f32,
[INFO] [stdout]     |     ^^^^^ help: if this is intentional, prefix it with an underscore: `_right`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bottom`
[INFO] [stdout]    --> examples/ch14/../common/transforms.rs:107:5
[INFO] [stdout]     |
[INFO] [stdout] 107 |     bottom: f32,
[INFO] [stdout]     |     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_bottom`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `top`
[INFO] [stdout]    --> examples/ch14/../common/transforms.rs:108:5
[INFO] [stdout]     |
[INFO] [stdout] 108 |     top: f32,
[INFO] [stdout]     |     ^^^ help: if this is intentional, prefix it with an underscore: `_top`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `near`
[INFO] [stdout]    --> examples/ch14/../common/transforms.rs:109:5
[INFO] [stdout]     |
[INFO] [stdout] 109 |     near: f32,
[INFO] [stdout]     |     ^^^^ help: if this is intentional, prefix it with an underscore: `_near`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `far`
[INFO] [stdout]    --> examples/ch14/../common/transforms.rs:110:5
[INFO] [stdout]     |
[INFO] [stdout] 110 |     far: f32,
[INFO] [stdout]     |     ^^^ help: if this is intentional, prefix it with an underscore: `_far`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `left`
[INFO] [stdout]    --> examples/ch14/../common/transforms.rs:105:5
[INFO] [stdout]     |
[INFO] [stdout] 105 |     left: f32,
[INFO] [stdout]     |     ^^^^ help: if this is intentional, prefix it with an underscore: `_left`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `right`
[INFO] [stdout]    --> examples/ch14/../common/transforms.rs:106:5
[INFO] [stdout]     |
[INFO] [stdout] 106 |     right: f32,
[INFO] [stdout]     |     ^^^^^ help: if this is intentional, prefix it with an underscore: `_right`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bottom`
[INFO] [stdout]    --> examples/ch14/../common/transforms.rs:107:5
[INFO] [stdout]     |
[INFO] [stdout] 107 |     bottom: f32,
[INFO] [stdout]     |     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_bottom`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `top`
[INFO] [stdout]    --> examples/ch14/../common/transforms.rs:108:5
[INFO] [stdout]     |
[INFO] [stdout] 108 |     top: f32,
[INFO] [stdout]     |     ^^^ help: if this is intentional, prefix it with an underscore: `_top`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `near`
[INFO] [stdout]    --> examples/ch14/../common/transforms.rs:109:5
[INFO] [stdout]     |
[INFO] [stdout] 109 |     near: f32,
[INFO] [stdout]     |     ^^^^ help: if this is intentional, prefix it with an underscore: `_near`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `far`
[INFO] [stdout]    --> examples/ch14/../common/transforms.rs:110:5
[INFO] [stdout]     |
[INFO] [stdout] 110 |     far: f32,
[INFO] [stdout]     |     ^^^ help: if this is intentional, prefix it with an underscore: `_far`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `left`
[INFO] [stdout]    --> examples/ch07/../common/transforms.rs:105:5
[INFO] [stdout]     |
[INFO] [stdout] 105 |     left: f32,
[INFO] [stdout]     |     ^^^^ help: if this is intentional, prefix it with an underscore: `_left`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `right`
[INFO] [stdout]    --> examples/ch07/../common/transforms.rs:106:5
[INFO] [stdout]     |
[INFO] [stdout] 106 |     right: f32,
[INFO] [stdout]     |     ^^^^^ help: if this is intentional, prefix it with an underscore: `_right`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bottom`
[INFO] [stdout]    --> examples/ch07/../common/transforms.rs:107:5
[INFO] [stdout]     |
[INFO] [stdout] 107 |     bottom: f32,
[INFO] [stdout]     |     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_bottom`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `top`
[INFO] [stdout]    --> examples/ch07/../common/transforms.rs:108:5
[INFO] [stdout]     |
[INFO] [stdout] 108 |     top: f32,
[INFO] [stdout]     |     ^^^ help: if this is intentional, prefix it with an underscore: `_top`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `near`
[INFO] [stdout]    --> examples/ch07/../common/transforms.rs:109:5
[INFO] [stdout]     |
[INFO] [stdout] 109 |     near: f32,
[INFO] [stdout]     |     ^^^^ help: if this is intentional, prefix it with an underscore: `_near`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `far`
[INFO] [stdout]    --> examples/ch07/../common/transforms.rs:110:5
[INFO] [stdout]     |
[INFO] [stdout] 110 |     far: f32,
[INFO] [stdout]     |     ^^^ help: if this is intentional, prefix it with an underscore: `_far`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `left`
[INFO] [stdout]    --> examples/ch14/../common/transforms.rs:105:5
[INFO] [stdout]     |
[INFO] [stdout] 105 |     left: f32,
[INFO] [stdout]     |     ^^^^ help: if this is intentional, prefix it with an underscore: `_left`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `right`
[INFO] [stdout]    --> examples/ch14/../common/transforms.rs:106:5
[INFO] [stdout]     |
[INFO] [stdout] 106 |     right: f32,
[INFO] [stdout]     |     ^^^^^ help: if this is intentional, prefix it with an underscore: `_right`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bottom`
[INFO] [stdout]    --> examples/ch14/../common/transforms.rs:107:5
[INFO] [stdout]     |
[INFO] [stdout] 107 |     bottom: f32,
[INFO] [stdout]     |     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_bottom`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `top`
[INFO] [stdout]    --> examples/ch14/../common/transforms.rs:108:5
[INFO] [stdout]     |
[INFO] [stdout] 108 |     top: f32,
[INFO] [stdout]     |     ^^^ help: if this is intentional, prefix it with an underscore: `_top`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `near`
[INFO] [stdout]    --> examples/ch14/../common/transforms.rs:109:5
[INFO] [stdout]     |
[INFO] [stdout] 109 |     near: f32,
[INFO] [stdout]     |     ^^^^ help: if this is intentional, prefix it with an underscore: `_near`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `far`
[INFO] [stdout]    --> examples/ch14/../common/transforms.rs:110:5
[INFO] [stdout]     |
[INFO] [stdout] 110 |     far: f32,
[INFO] [stdout]     |     ^^^ help: if this is intentional, prefix it with an underscore: `_far`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> examples/ch12/../common/surface_data.rs:134:9
[INFO] [stdout]     |
[INFO] [stdout] 134 |     let mut positions: Vec<[f32; 3]> = Vec::with_capacity((4 * (nx - 1) * (nz - 1)) as usize);
[INFO] [stdout]     |         ----^^^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> examples/ch12/../common/surface_data.rs:135:9
[INFO] [stdout]     |
[INFO] [stdout] 135 |     let mut normals: Vec<[f32; 3]> = Vec::with_capacity((4 * (nx - 1) * (nz - 1)) as usize);
[INFO] [stdout]     |         ----^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> examples/ch12/../common/surface_data.rs:136:9
[INFO] [stdout]     |
[INFO] [stdout] 136 |     let mut colors: Vec<[f32; 3]> = Vec::with_capacity((4 * (nx - 1) * (nz - 1)) as usize);
[INFO] [stdout]     |         ----^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> examples/ch12/../common/surface_data.rs:134:9
[INFO] [stdout]     |
[INFO] [stdout] 134 |     let mut positions: Vec<[f32; 3]> = Vec::with_capacity((4 * (nx - 1) * (nz - 1)) as usize);
[INFO] [stdout]     |         ----^^^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> examples/ch12/../common/surface_data.rs:135:9
[INFO] [stdout]     |
[INFO] [stdout] 135 |     let mut normals: Vec<[f32; 3]> = Vec::with_capacity((4 * (nx - 1) * (nz - 1)) as usize);
[INFO] [stdout]     |         ----^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> examples/ch12/../common/surface_data.rs:136:9
[INFO] [stdout]     |
[INFO] [stdout] 136 |     let mut colors: Vec<[f32; 3]> = Vec::with_capacity((4 * (nx - 1) * (nz - 1)) as usize);
[INFO] [stdout]     |         ----^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cmin`
[INFO] [stdout]    --> examples/ch12/../common/surface_data.rs:131:9
[INFO] [stdout]     |
[INFO] [stdout] 131 |     let cmin = normalize_point([0.0, ymin1, 0.0], xmin, xmax, ymin, ymax, zmin, zmax, scale)[1];
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_cmin`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cmax`
[INFO] [stdout]    --> examples/ch12/../common/surface_data.rs:132:9
[INFO] [stdout]     |
[INFO] [stdout] 132 |     let cmax = normalize_point([0.0, ymax1, 0.0], xmin, xmax, ymin, ymax, zmin, zmax, scale)[1];
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_cmax`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cmin`
[INFO] [stdout]    --> examples/ch12/../common/surface_data.rs:131:9
[INFO] [stdout]     |
[INFO] [stdout] 131 |     let cmin = normalize_point([0.0, ymin1, 0.0], xmin, xmax, ymin, ymax, zmin, zmax, scale)[1];
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_cmin`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cmax`
[INFO] [stdout]    --> examples/ch12/../common/surface_data.rs:132:9
[INFO] [stdout]     |
[INFO] [stdout] 132 |     let cmax = normalize_point([0.0, ymax1, 0.0], xmin, xmax, ymin, ymax, zmin, zmax, scale)[1];
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_cmax`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> examples/ch12/../common/surface_data.rs:233:9
[INFO] [stdout]     |
[INFO] [stdout] 233 |     let mut uvs: Vec<[f32; 2]> = Vec::with_capacity((4 * (nu - 1) * (nv - 1)) as usize);
[INFO] [stdout]     |         ----^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> examples/ch12/../common/surface_data.rs:233:9
[INFO] [stdout]     |
[INFO] [stdout] 233 |     let mut uvs: Vec<[f32; 2]> = Vec::with_capacity((4 * (nu - 1) * (nv - 1)) as usize);
[INFO] [stdout]     |         ----^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> examples/ch12/../common/surface_data.rs:311:9
[INFO] [stdout]     |
[INFO] [stdout] 311 |     let mut uvs: Vec<[f32; 2]> = Vec::with_capacity((4 * (nu - 1) * (nv - 1)) as usize);
[INFO] [stdout]     |         ----^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> examples/ch12/../common/surface_data.rs:311:9
[INFO] [stdout]     |
[INFO] [stdout] 311 |     let mut uvs: Vec<[f32; 2]> = Vec::with_capacity((4 * (nu - 1) * (nv - 1)) as usize);
[INFO] [stdout]     |         ----^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> examples/ch12/../common/surface_data.rs:362:9
[INFO] [stdout]     |
[INFO] [stdout] 362 |     let mut mesh: Vec<[f32; 3]> = Vec::with_capacity((4 * (nx - 1) * (nz - 1)) as usize);
[INFO] [stdout]     |         ----^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> examples/ch12/../common/surface_data.rs:362:9
[INFO] [stdout]     |
[INFO] [stdout] 362 |     let mut mesh: Vec<[f32; 3]> = Vec::with_capacity((4 * (nx - 1) * (nz - 1)) as usize);
[INFO] [stdout]     |         ----^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `left`
[INFO] [stdout]    --> examples/ch12/../common/transforms.rs:105:5
[INFO] [stdout]     |
[INFO] [stdout] 105 |     left: f32,
[INFO] [stdout]     |     ^^^^ help: if this is intentional, prefix it with an underscore: `_left`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `right`
[INFO] [stdout]    --> examples/ch12/../common/transforms.rs:106:5
[INFO] [stdout]     |
[INFO] [stdout] 106 |     right: f32,
[INFO] [stdout]     |     ^^^^^ help: if this is intentional, prefix it with an underscore: `_right`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bottom`
[INFO] [stdout]    --> examples/ch12/../common/transforms.rs:107:5
[INFO] [stdout]     |
[INFO] [stdout] 107 |     bottom: f32,
[INFO] [stdout]     |     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_bottom`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `top`
[INFO] [stdout]    --> examples/ch12/../common/transforms.rs:108:5
[INFO] [stdout]     |
[INFO] [stdout] 108 |     top: f32,
[INFO] [stdout]     |     ^^^ help: if this is intentional, prefix it with an underscore: `_top`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `near`
[INFO] [stdout]    --> examples/ch12/../common/transforms.rs:109:5
[INFO] [stdout]     |
[INFO] [stdout] 109 |     near: f32,
[INFO] [stdout]     |     ^^^^ help: if this is intentional, prefix it with an underscore: `_near`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `far`
[INFO] [stdout]    --> examples/ch12/../common/transforms.rs:110:5
[INFO] [stdout]     |
[INFO] [stdout] 110 |     far: f32,
[INFO] [stdout]     |     ^^^ help: if this is intentional, prefix it with an underscore: `_far`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `left`
[INFO] [stdout]    --> examples/ch13/../common/transforms.rs:105:5
[INFO] [stdout]     |
[INFO] [stdout] 105 |     left: f32,
[INFO] [stdout]     |     ^^^^ help: if this is intentional, prefix it with an underscore: `_left`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `right`
[INFO] [stdout]    --> examples/ch13/../common/transforms.rs:106:5
[INFO] [stdout]     |
[INFO] [stdout] 106 |     right: f32,
[INFO] [stdout]     |     ^^^^^ help: if this is intentional, prefix it with an underscore: `_right`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bottom`
[INFO] [stdout]    --> examples/ch13/../common/transforms.rs:107:5
[INFO] [stdout]     |
[INFO] [stdout] 107 |     bottom: f32,
[INFO] [stdout]     |     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_bottom`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `left`
[INFO] [stdout]    --> examples/ch12/../common/transforms.rs:105:5
[INFO] [stdout]     |
[INFO] [stdout] 105 |     left: f32,
[INFO] [stdout]     |     ^^^^ help: if this is intentional, prefix it with an underscore: `_left`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `top`
[INFO] [stdout]    --> examples/ch13/../common/transforms.rs:108:5
[INFO] [stdout]     |
[INFO] [stdout] 108 |     top: f32,
[INFO] [stdout]     |     ^^^ help: if this is intentional, prefix it with an underscore: `_top`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `right`
[INFO] [stdout]    --> examples/ch12/../common/transforms.rs:106:5
[INFO] [stdout]     |
[INFO] [stdout] 106 |     right: f32,
[INFO] [stdout]     |     ^^^^^ help: if this is intentional, prefix it with an underscore: `_right`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bottom`
[INFO] [stdout]    --> examples/ch12/../common/transforms.rs:107:5
[INFO] [stdout]     |
[INFO] [stdout] 107 |     bottom: f32,
[INFO] [stdout]     |     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_bottom`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `top`
[INFO] [stdout]    --> examples/ch12/../common/transforms.rs:108:5
[INFO] [stdout]     |
[INFO] [stdout] 108 |     top: f32,
[INFO] [stdout]     |     ^^^ help: if this is intentional, prefix it with an underscore: `_top`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `near`
[INFO] [stdout]    --> examples/ch12/../common/transforms.rs:109:5
[INFO] [stdout]     |
[INFO] [stdout] 109 |     near: f32,
[INFO] [stdout]     |     ^^^^ help: if this is intentional, prefix it with an underscore: `_near`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `far`
[INFO] [stdout]    --> examples/ch12/../common/transforms.rs:110:5
[INFO] [stdout]     |
[INFO] [stdout] 110 |     far: f32,
[INFO] [stdout]     |     ^^^ help: if this is intentional, prefix it with an underscore: `_far`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `near`
[INFO] [stdout]    --> examples/ch13/../common/transforms.rs:109:5
[INFO] [stdout]     |
[INFO] [stdout] 109 |     near: f32,
[INFO] [stdout]     |     ^^^^ help: if this is intentional, prefix it with an underscore: `_near`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `far`
[INFO] [stdout]    --> examples/ch13/../common/transforms.rs:110:5
[INFO] [stdout]     |
[INFO] [stdout] 110 |     far: f32,
[INFO] [stdout]     |     ^^^ help: if this is intentional, prefix it with an underscore: `_far`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `left`
[INFO] [stdout]    --> examples/ch06/../common/transforms.rs:105:5
[INFO] [stdout]     |
[INFO] [stdout] 105 |     left: f32,
[INFO] [stdout]     |     ^^^^ help: if this is intentional, prefix it with an underscore: `_left`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `right`
[INFO] [stdout]    --> examples/ch06/../common/transforms.rs:106:5
[INFO] [stdout]     |
[INFO] [stdout] 106 |     right: f32,
[INFO] [stdout]     |     ^^^^^ help: if this is intentional, prefix it with an underscore: `_right`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bottom`
[INFO] [stdout]    --> examples/ch06/../common/transforms.rs:107:5
[INFO] [stdout]     |
[INFO] [stdout] 107 |     bottom: f32,
[INFO] [stdout]     |     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_bottom`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `top`
[INFO] [stdout]    --> examples/ch06/../common/transforms.rs:108:5
[INFO] [stdout]     |
[INFO] [stdout] 108 |     top: f32,
[INFO] [stdout]     |     ^^^ help: if this is intentional, prefix it with an underscore: `_top`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `near`
[INFO] [stdout]    --> examples/ch06/../common/transforms.rs:109:5
[INFO] [stdout]     |
[INFO] [stdout] 109 |     near: f32,
[INFO] [stdout]     |     ^^^^ help: if this is intentional, prefix it with an underscore: `_near`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `far`
[INFO] [stdout]    --> examples/ch06/../common/transforms.rs:110:5
[INFO] [stdout]     |
[INFO] [stdout] 110 |     far: f32,
[INFO] [stdout]     |     ^^^ help: if this is intentional, prefix it with an underscore: `_far`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `uvs`
[INFO] [stdout]   --> examples/ch06/../common/vertex_data.rs:96:9
[INFO] [stdout]    |
[INFO] [stdout] 96 |     let uvs = [
[INFO] [stdout]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_uvs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `left`
[INFO] [stdout]    --> examples/ch13/../common/transforms.rs:105:5
[INFO] [stdout]     |
[INFO] [stdout] 105 |     left: f32,
[INFO] [stdout]     |     ^^^^ help: if this is intentional, prefix it with an underscore: `_left`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `right`
[INFO] [stdout]    --> examples/ch13/../common/transforms.rs:106:5
[INFO] [stdout]     |
[INFO] [stdout] 106 |     right: f32,
[INFO] [stdout]     |     ^^^^^ help: if this is intentional, prefix it with an underscore: `_right`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bottom`
[INFO] [stdout]    --> examples/ch13/../common/transforms.rs:107:5
[INFO] [stdout]     |
[INFO] [stdout] 107 |     bottom: f32,
[INFO] [stdout]     |     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_bottom`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `top`
[INFO] [stdout]    --> examples/ch13/../common/transforms.rs:108:5
[INFO] [stdout]     |
[INFO] [stdout] 108 |     top: f32,
[INFO] [stdout]     |     ^^^ help: if this is intentional, prefix it with an underscore: `_top`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `near`
[INFO] [stdout]    --> examples/ch13/../common/transforms.rs:109:5
[INFO] [stdout]     |
[INFO] [stdout] 109 |     near: f32,
[INFO] [stdout]     |     ^^^^ help: if this is intentional, prefix it with an underscore: `_near`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `far`
[INFO] [stdout]    --> examples/ch13/../common/transforms.rs:110:5
[INFO] [stdout]     |
[INFO] [stdout] 110 |     far: f32,
[INFO] [stdout]     |     ^^^ help: if this is intentional, prefix it with an underscore: `_far`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `left`
[INFO] [stdout]    --> examples/ch08/../common/transforms.rs:105:5
[INFO] [stdout]     |
[INFO] [stdout] 105 |     left: f32,
[INFO] [stdout]     |     ^^^^ help: if this is intentional, prefix it with an underscore: `_left`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `right`
[INFO] [stdout]    --> examples/ch08/../common/transforms.rs:106:5
[INFO] [stdout]     |
[INFO] [stdout] 106 |     right: f32,
[INFO] [stdout]     |     ^^^^^ help: if this is intentional, prefix it with an underscore: `_right`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bottom`
[INFO] [stdout]    --> examples/ch08/../common/transforms.rs:107:5
[INFO] [stdout]     |
[INFO] [stdout] 107 |     bottom: f32,
[INFO] [stdout]     |     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_bottom`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `top`
[INFO] [stdout]    --> examples/ch08/../common/transforms.rs:108:5
[INFO] [stdout]     |
[INFO] [stdout] 108 |     top: f32,
[INFO] [stdout]     |     ^^^ help: if this is intentional, prefix it with an underscore: `_top`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `near`
[INFO] [stdout]    --> examples/ch08/../common/transforms.rs:109:5
[INFO] [stdout]     |
[INFO] [stdout] 109 |     near: f32,
[INFO] [stdout]     |     ^^^^ help: if this is intentional, prefix it with an underscore: `_near`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `far`
[INFO] [stdout]    --> examples/ch08/../common/transforms.rs:110:5
[INFO] [stdout]     |
[INFO] [stdout] 110 |     far: f32,
[INFO] [stdout]     |     ^^^ help: if this is intentional, prefix it with an underscore: `_far`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> examples/ch12/../ch09/../common/surface_data.rs:134:9
[INFO] [stdout]     |
[INFO] [stdout] 134 |     let mut positions: Vec<[f32; 3]> = Vec::with_capacity((4 * (nx - 1) * (nz - 1)) as usize);
[INFO] [stdout]     |         ----^^^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> examples/ch12/../ch09/../common/surface_data.rs:135:9
[INFO] [stdout]     |
[INFO] [stdout] 135 |     let mut normals: Vec<[f32; 3]> = Vec::with_capacity((4 * (nx - 1) * (nz - 1)) as usize);
[INFO] [stdout]     |         ----^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> examples/ch12/../ch09/../common/surface_data.rs:136:9
[INFO] [stdout]     |
[INFO] [stdout] 136 |     let mut colors: Vec<[f32; 3]> = Vec::with_capacity((4 * (nx - 1) * (nz - 1)) as usize);
[INFO] [stdout]     |         ----^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cmin`
[INFO] [stdout]    --> examples/ch12/../ch09/../common/surface_data.rs:131:9
[INFO] [stdout]     |
[INFO] [stdout] 131 |     let cmin = normalize_point([0.0, ymin1, 0.0], xmin, xmax, ymin, ymax, zmin, zmax, scale)[1];
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_cmin`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cmax`
[INFO] [stdout]    --> examples/ch12/../ch09/../common/surface_data.rs:132:9
[INFO] [stdout]     |
[INFO] [stdout] 132 |     let cmax = normalize_point([0.0, ymax1, 0.0], xmin, xmax, ymin, ymax, zmin, zmax, scale)[1];
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_cmax`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> examples/ch12/../ch09/../common/surface_data.rs:233:9
[INFO] [stdout]     |
[INFO] [stdout] 233 |     let mut uvs: Vec<[f32; 2]> = Vec::with_capacity((4 * (nu - 1) * (nv - 1)) as usize);
[INFO] [stdout]     |         ----^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> examples/ch10/../common/surface_data.rs:134:9
[INFO] [stdout]     |
[INFO] [stdout] 134 |     let mut positions: Vec<[f32; 3]> = Vec::with_capacity((4 * (nx - 1) * (nz - 1)) as usize);
[INFO] [stdout]     |         ----^^^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> examples/ch09/../common/surface_data.rs:134:9
[INFO] [stdout]     |
[INFO] [stdout] 134 |     let mut positions: Vec<[f32; 3]> = Vec::with_capacity((4 * (nx - 1) * (nz - 1)) as usize);
[INFO] [stdout]     |         ----^^^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> examples/ch09/../common/surface_data.rs:135:9
[INFO] [stdout]     |
[INFO] [stdout] 135 |     let mut normals: Vec<[f32; 3]> = Vec::with_capacity((4 * (nx - 1) * (nz - 1)) as usize);
[INFO] [stdout]     |         ----^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> examples/ch09/../common/surface_data.rs:136:9
[INFO] [stdout]     |
[INFO] [stdout] 136 |     let mut colors: Vec<[f32; 3]> = Vec::with_capacity((4 * (nx - 1) * (nz - 1)) as usize);
[INFO] [stdout]     |         ----^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cmin`
[INFO] [stdout]    --> examples/ch09/../common/surface_data.rs:131:9
[INFO] [stdout]     |
[INFO] [stdout] 131 |     let cmin = normalize_point([0.0, ymin1, 0.0], xmin, xmax, ymin, ymax, zmin, zmax, scale)[1];
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_cmin`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cmax`
[INFO] [stdout]    --> examples/ch09/../common/surface_data.rs:132:9
[INFO] [stdout]     |
[INFO] [stdout] 132 |     let cmax = normalize_point([0.0, ymax1, 0.0], xmin, xmax, ymin, ymax, zmin, zmax, scale)[1];
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_cmax`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> examples/ch09/../common/surface_data.rs:233:9
[INFO] [stdout]     |
[INFO] [stdout] 233 |     let mut uvs: Vec<[f32; 2]> = Vec::with_capacity((4 * (nu - 1) * (nv - 1)) as usize);
[INFO] [stdout]     |         ----^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> examples/ch10/../common/surface_data.rs:135:9
[INFO] [stdout]     |
[INFO] [stdout] 135 |     let mut normals: Vec<[f32; 3]> = Vec::with_capacity((4 * (nx - 1) * (nz - 1)) as usize);
[INFO] [stdout]     |         ----^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> examples/ch10/../common/surface_data.rs:136:9
[INFO] [stdout]     |
[INFO] [stdout] 136 |     let mut colors: Vec<[f32; 3]> = Vec::with_capacity((4 * (nx - 1) * (nz - 1)) as usize);
[INFO] [stdout]     |         ----^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cmin`
[INFO] [stdout]    --> examples/ch10/../common/surface_data.rs:131:9
[INFO] [stdout]     |
[INFO] [stdout] 131 |     let cmin = normalize_point([0.0, ymin1, 0.0], xmin, xmax, ymin, ymax, zmin, zmax, scale)[1];
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_cmin`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cmax`
[INFO] [stdout]    --> examples/ch10/../common/surface_data.rs:132:9
[INFO] [stdout]     |
[INFO] [stdout] 132 |     let cmax = normalize_point([0.0, ymax1, 0.0], xmin, xmax, ymin, ymax, zmin, zmax, scale)[1];
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_cmax`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> examples/ch12/../ch09/../common/surface_data.rs:311:9
[INFO] [stdout]     |
[INFO] [stdout] 311 |     let mut uvs: Vec<[f32; 2]> = Vec::with_capacity((4 * (nu - 1) * (nv - 1)) as usize);
[INFO] [stdout]     |         ----^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> examples/ch10/../common/surface_data.rs:233:9
[INFO] [stdout]     |
[INFO] [stdout] 233 |     let mut uvs: Vec<[f32; 2]> = Vec::with_capacity((4 * (nu - 1) * (nv - 1)) as usize);
[INFO] [stdout]     |         ----^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> examples/ch12/../ch09/../common/surface_data.rs:362:9
[INFO] [stdout]     |
[INFO] [stdout] 362 |     let mut mesh: Vec<[f32; 3]> = Vec::with_capacity((4 * (nx - 1) * (nz - 1)) as usize);
[INFO] [stdout]     |         ----^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> examples/ch09/../common/surface_data.rs:311:9
[INFO] [stdout]     |
[INFO] [stdout] 311 |     let mut uvs: Vec<[f32; 2]> = Vec::with_capacity((4 * (nu - 1) * (nv - 1)) as usize);
[INFO] [stdout]     |         ----^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> examples/ch10/../common/surface_data.rs:311:9
[INFO] [stdout]     |
[INFO] [stdout] 311 |     let mut uvs: Vec<[f32; 2]> = Vec::with_capacity((4 * (nu - 1) * (nv - 1)) as usize);
[INFO] [stdout]     |         ----^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> examples/ch09/../common/surface_data.rs:362:9
[INFO] [stdout]     |
[INFO] [stdout] 362 |     let mut mesh: Vec<[f32; 3]> = Vec::with_capacity((4 * (nx - 1) * (nz - 1)) as usize);
[INFO] [stdout]     |         ----^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `left`
[INFO] [stdout]    --> examples/ch09/../common/transforms.rs:105:5
[INFO] [stdout]     |
[INFO] [stdout] 105 |     left: f32,
[INFO] [stdout]     |     ^^^^ help: if this is intentional, prefix it with an underscore: `_left`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `right`
[INFO] [stdout]    --> examples/ch09/../common/transforms.rs:106:5
[INFO] [stdout]     |
[INFO] [stdout] 106 |     right: f32,
[INFO] [stdout]     |     ^^^^^ help: if this is intentional, prefix it with an underscore: `_right`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bottom`
[INFO] [stdout]    --> examples/ch09/../common/transforms.rs:107:5
[INFO] [stdout]     |
[INFO] [stdout] 107 |     bottom: f32,
[INFO] [stdout]     |     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_bottom`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> examples/ch10/../common/surface_data.rs:362:9
[INFO] [stdout]     |
[INFO] [stdout] 362 |     let mut mesh: Vec<[f32; 3]> = Vec::with_capacity((4 * (nx - 1) * (nz - 1)) as usize);
[INFO] [stdout]     |         ----^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `top`
[INFO] [stdout]    --> examples/ch09/../common/transforms.rs:108:5
[INFO] [stdout]     |
[INFO] [stdout] 108 |     top: f32,
[INFO] [stdout]     |     ^^^ help: if this is intentional, prefix it with an underscore: `_top`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `near`
[INFO] [stdout]    --> examples/ch09/../common/transforms.rs:109:5
[INFO] [stdout]     |
[INFO] [stdout] 109 |     near: f32,
[INFO] [stdout]     |     ^^^^ help: if this is intentional, prefix it with an underscore: `_near`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `far`
[INFO] [stdout]    --> examples/ch09/../common/transforms.rs:110:5
[INFO] [stdout]     |
[INFO] [stdout] 110 |     far: f32,
[INFO] [stdout]     |     ^^^ help: if this is intentional, prefix it with an underscore: `_far`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `left`
[INFO] [stdout]    --> examples/ch10/../common/transforms.rs:105:5
[INFO] [stdout]     |
[INFO] [stdout] 105 |     left: f32,
[INFO] [stdout]     |     ^^^^ help: if this is intentional, prefix it with an underscore: `_left`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `right`
[INFO] [stdout]    --> examples/ch10/../common/transforms.rs:106:5
[INFO] [stdout]     |
[INFO] [stdout] 106 |     right: f32,
[INFO] [stdout]     |     ^^^^^ help: if this is intentional, prefix it with an underscore: `_right`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bottom`
[INFO] [stdout]    --> examples/ch10/../common/transforms.rs:107:5
[INFO] [stdout]     |
[INFO] [stdout] 107 |     bottom: f32,
[INFO] [stdout]     |     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_bottom`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `top`
[INFO] [stdout]    --> examples/ch10/../common/transforms.rs:108:5
[INFO] [stdout]     |
[INFO] [stdout] 108 |     top: f32,
[INFO] [stdout]     |     ^^^ help: if this is intentional, prefix it with an underscore: `_top`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `near`
[INFO] [stdout]    --> examples/ch10/../common/transforms.rs:109:5
[INFO] [stdout]     |
[INFO] [stdout] 109 |     near: f32,
[INFO] [stdout]     |     ^^^^ help: if this is intentional, prefix it with an underscore: `_near`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `far`
[INFO] [stdout]    --> examples/ch10/../common/transforms.rs:110:5
[INFO] [stdout]     |
[INFO] [stdout] 110 |     far: f32,
[INFO] [stdout]     |     ^^^ help: if this is intentional, prefix it with an underscore: `_far`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> examples/ch09/../common/surface_data.rs:134:9
[INFO] [stdout]     |
[INFO] [stdout] 134 |     let mut positions: Vec<[f32; 3]> = Vec::with_capacity((4 * (nx - 1) * (nz - 1)) as usize);
[INFO] [stdout]     |         ----^^^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> examples/ch09/../common/surface_data.rs:135:9
[INFO] [stdout]     |
[INFO] [stdout] 135 |     let mut normals: Vec<[f32; 3]> = Vec::with_capacity((4 * (nx - 1) * (nz - 1)) as usize);
[INFO] [stdout]     |         ----^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> examples/ch09/../common/surface_data.rs:136:9
[INFO] [stdout]     |
[INFO] [stdout] 136 |     let mut colors: Vec<[f32; 3]> = Vec::with_capacity((4 * (nx - 1) * (nz - 1)) as usize);
[INFO] [stdout]     |         ----^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cmin`
[INFO] [stdout]    --> examples/ch09/../common/surface_data.rs:131:9
[INFO] [stdout]     |
[INFO] [stdout] 131 |     let cmin = normalize_point([0.0, ymin1, 0.0], xmin, xmax, ymin, ymax, zmin, zmax, scale)[1];
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_cmin`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cmax`
[INFO] [stdout]    --> examples/ch09/../common/surface_data.rs:132:9
[INFO] [stdout]     |
[INFO] [stdout] 132 |     let cmax = normalize_point([0.0, ymax1, 0.0], xmin, xmax, ymin, ymax, zmin, zmax, scale)[1];
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_cmax`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> examples/ch09/../common/surface_data.rs:233:9
[INFO] [stdout]     |
[INFO] [stdout] 233 |     let mut uvs: Vec<[f32; 2]> = Vec::with_capacity((4 * (nu - 1) * (nv - 1)) as usize);
[INFO] [stdout]     |         ----^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> examples/ch09/../common/surface_data.rs:311:9
[INFO] [stdout]     |
[INFO] [stdout] 311 |     let mut uvs: Vec<[f32; 2]> = Vec::with_capacity((4 * (nu - 1) * (nv - 1)) as usize);
[INFO] [stdout]     |         ----^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `left`
[INFO] [stdout]    --> examples/ch12/../ch09/../common/transforms.rs:105:5
[INFO] [stdout]     |
[INFO] [stdout] 105 |     left: f32,
[INFO] [stdout]     |     ^^^^ help: if this is intentional, prefix it with an underscore: `_left`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `right`
[INFO] [stdout]    --> examples/ch12/../ch09/../common/transforms.rs:106:5
[INFO] [stdout]     |
[INFO] [stdout] 106 |     right: f32,
[INFO] [stdout]     |     ^^^^^ help: if this is intentional, prefix it with an underscore: `_right`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bottom`
[INFO] [stdout]    --> examples/ch12/../ch09/../common/transforms.rs:107:5
[INFO] [stdout]     |
[INFO] [stdout] 107 |     bottom: f32,
[INFO] [stdout]     |     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_bottom`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `top`
[INFO] [stdout]    --> examples/ch12/../ch09/../common/transforms.rs:108:5
[INFO] [stdout]     |
[INFO] [stdout] 108 |     top: f32,
[INFO] [stdout]     |     ^^^ help: if this is intentional, prefix it with an underscore: `_top`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `near`
[INFO] [stdout]    --> examples/ch12/../ch09/../common/transforms.rs:109:5
[INFO] [stdout]     |
[INFO] [stdout] 109 |     near: f32,
[INFO] [stdout]     |     ^^^^ help: if this is intentional, prefix it with an underscore: `_near`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `far`
[INFO] [stdout]    --> examples/ch12/../ch09/../common/transforms.rs:110:5
[INFO] [stdout]     |
[INFO] [stdout] 110 |     far: f32,
[INFO] [stdout]     |     ^^^ help: if this is intentional, prefix it with an underscore: `_far`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> examples/ch09/../common/surface_data.rs:362:9
[INFO] [stdout]     |
[INFO] [stdout] 362 |     let mut mesh: Vec<[f32; 3]> = Vec::with_capacity((4 * (nx - 1) * (nz - 1)) as usize);
[INFO] [stdout]     |         ----^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `left`
[INFO] [stdout]    --> examples/ch09/../common/transforms.rs:105:5
[INFO] [stdout]     |
[INFO] [stdout] 105 |     left: f32,
[INFO] [stdout]     |     ^^^^ help: if this is intentional, prefix it with an underscore: `_left`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `right`
[INFO] [stdout]    --> examples/ch09/../common/transforms.rs:106:5
[INFO] [stdout]     |
[INFO] [stdout] 106 |     right: f32,
[INFO] [stdout]     |     ^^^^^ help: if this is intentional, prefix it with an underscore: `_right`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bottom`
[INFO] [stdout]    --> examples/ch09/../common/transforms.rs:107:5
[INFO] [stdout]     |
[INFO] [stdout] 107 |     bottom: f32,
[INFO] [stdout]     |     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_bottom`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `top`
[INFO] [stdout]    --> examples/ch09/../common/transforms.rs:108:5
[INFO] [stdout]     |
[INFO] [stdout] 108 |     top: f32,
[INFO] [stdout]     |     ^^^ help: if this is intentional, prefix it with an underscore: `_top`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `near`
[INFO] [stdout]    --> examples/ch09/../common/transforms.rs:109:5
[INFO] [stdout]     |
[INFO] [stdout] 109 |     near: f32,
[INFO] [stdout]     |     ^^^^ help: if this is intentional, prefix it with an underscore: `_near`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `far`
[INFO] [stdout]    --> examples/ch09/../common/transforms.rs:110:5
[INFO] [stdout]     |
[INFO] [stdout] 110 |     far: f32,
[INFO] [stdout]     |     ^^^ help: if this is intentional, prefix it with an underscore: `_far`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `uvs`
[INFO] [stdout]   --> examples/ch08/../common/vertex_data.rs:96:9
[INFO] [stdout]    |
[INFO] [stdout] 96 |     let uvs = [
[INFO] [stdout]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_uvs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> examples/ch10/../common/surface_data.rs:134:9
[INFO] [stdout]     |
[INFO] [stdout] 134 |     let mut positions: Vec<[f32; 3]> = Vec::with_capacity((4 * (nx - 1) * (nz - 1)) as usize);
[INFO] [stdout]     |         ----^^^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> examples/ch10/../common/surface_data.rs:135:9
[INFO] [stdout]     |
[INFO] [stdout] 135 |     let mut normals: Vec<[f32; 3]> = Vec::with_capacity((4 * (nx - 1) * (nz - 1)) as usize);
[INFO] [stdout]     |         ----^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> examples/ch10/../common/surface_data.rs:136:9
[INFO] [stdout]     |
[INFO] [stdout] 136 |     let mut colors: Vec<[f32; 3]> = Vec::with_capacity((4 * (nx - 1) * (nz - 1)) as usize);
[INFO] [stdout]     |         ----^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cmin`
[INFO] [stdout]    --> examples/ch10/../common/surface_data.rs:131:9
[INFO] [stdout]     |
[INFO] [stdout] 131 |     let cmin = normalize_point([0.0, ymin1, 0.0], xmin, xmax, ymin, ymax, zmin, zmax, scale)[1];
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_cmin`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cmax`
[INFO] [stdout]    --> examples/ch10/../common/surface_data.rs:132:9
[INFO] [stdout]     |
[INFO] [stdout] 132 |     let cmax = normalize_point([0.0, ymax1, 0.0], xmin, xmax, ymin, ymax, zmin, zmax, scale)[1];
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_cmax`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> examples/ch10/../common/surface_data.rs:233:9
[INFO] [stdout]     |
[INFO] [stdout] 233 |     let mut uvs: Vec<[f32; 2]> = Vec::with_capacity((4 * (nu - 1) * (nv - 1)) as usize);
[INFO] [stdout]     |         ----^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> examples/ch10/../common/surface_data.rs:311:9
[INFO] [stdout]     |
[INFO] [stdout] 311 |     let mut uvs: Vec<[f32; 2]> = Vec::with_capacity((4 * (nu - 1) * (nv - 1)) as usize);
[INFO] [stdout]     |         ----^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> examples/ch10/../common/surface_data.rs:362:9
[INFO] [stdout]     |
[INFO] [stdout] 362 |     let mut mesh: Vec<[f32; 3]> = Vec::with_capacity((4 * (nx - 1) * (nz - 1)) as usize);
[INFO] [stdout]     |         ----^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `uvs`
[INFO] [stdout]   --> examples/ch10/../common/vertex_data.rs:96:9
[INFO] [stdout]    |
[INFO] [stdout] 96 |     let uvs = [
[INFO] [stdout]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_uvs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `left`
[INFO] [stdout]    --> examples/ch10/../common/transforms.rs:105:5
[INFO] [stdout]     |
[INFO] [stdout] 105 |     left: f32,
[INFO] [stdout]     |     ^^^^ help: if this is intentional, prefix it with an underscore: `_left`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `right`
[INFO] [stdout]    --> examples/ch10/../common/transforms.rs:106:5
[INFO] [stdout]     |
[INFO] [stdout] 106 |     right: f32,
[INFO] [stdout]     |     ^^^^^ help: if this is intentional, prefix it with an underscore: `_right`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bottom`
[INFO] [stdout]    --> examples/ch10/../common/transforms.rs:107:5
[INFO] [stdout]     |
[INFO] [stdout] 107 |     bottom: f32,
[INFO] [stdout]     |     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_bottom`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `top`
[INFO] [stdout]    --> examples/ch10/../common/transforms.rs:108:5
[INFO] [stdout]     |
[INFO] [stdout] 108 |     top: f32,
[INFO] [stdout]     |     ^^^ help: if this is intentional, prefix it with an underscore: `_top`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `near`
[INFO] [stdout]    --> examples/ch10/../common/transforms.rs:109:5
[INFO] [stdout]     |
[INFO] [stdout] 109 |     near: f32,
[INFO] [stdout]     |     ^^^^ help: if this is intentional, prefix it with an underscore: `_near`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `far`
[INFO] [stdout]    --> examples/ch10/../common/transforms.rs:110:5
[INFO] [stdout]     |
[INFO] [stdout] 110 |     far: f32,
[INFO] [stdout]     |     ^^^ help: if this is intentional, prefix it with an underscore: `_far`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> examples/ch10/../common/surface_data.rs:134:9
[INFO] [stdout]     |
[INFO] [stdout] 134 |     let mut positions: Vec<[f32; 3]> = Vec::with_capacity((4 * (nx - 1) * (nz - 1)) as usize);
[INFO] [stdout]     |         ----^^^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> examples/ch10/../common/surface_data.rs:135:9
[INFO] [stdout]     |
[INFO] [stdout] 135 |     let mut normals: Vec<[f32; 3]> = Vec::with_capacity((4 * (nx - 1) * (nz - 1)) as usize);
[INFO] [stdout]     |         ----^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> examples/ch10/../common/surface_data.rs:136:9
[INFO] [stdout]     |
[INFO] [stdout] 136 |     let mut colors: Vec<[f32; 3]> = Vec::with_capacity((4 * (nx - 1) * (nz - 1)) as usize);
[INFO] [stdout]     |         ----^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cmin`
[INFO] [stdout]    --> examples/ch10/../common/surface_data.rs:131:9
[INFO] [stdout]     |
[INFO] [stdout] 131 |     let cmin = normalize_point([0.0, ymin1, 0.0], xmin, xmax, ymin, ymax, zmin, zmax, scale)[1];
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_cmin`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cmax`
[INFO] [stdout]    --> examples/ch10/../common/surface_data.rs:132:9
[INFO] [stdout]     |
[INFO] [stdout] 132 |     let cmax = normalize_point([0.0, ymax1, 0.0], xmin, xmax, ymin, ymax, zmin, zmax, scale)[1];
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_cmax`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> examples/ch10/../common/surface_data.rs:233:9
[INFO] [stdout]     |
[INFO] [stdout] 233 |     let mut uvs: Vec<[f32; 2]> = Vec::with_capacity((4 * (nu - 1) * (nv - 1)) as usize);
[INFO] [stdout]     |         ----^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> examples/ch10/../common/surface_data.rs:311:9
[INFO] [stdout]     |
[INFO] [stdout] 311 |     let mut uvs: Vec<[f32; 2]> = Vec::with_capacity((4 * (nu - 1) * (nv - 1)) as usize);
[INFO] [stdout]     |         ----^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> examples/ch10/../common/surface_data.rs:362:9
[INFO] [stdout]     |
[INFO] [stdout] 362 |     let mut mesh: Vec<[f32; 3]> = Vec::with_capacity((4 * (nx - 1) * (nz - 1)) as usize);
[INFO] [stdout]     |         ----^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> examples/ch11/../common/surface_data.rs:134:9
[INFO] [stdout]     |
[INFO] [stdout] 134 |     let mut positions: Vec<[f32; 3]> = Vec::with_capacity((4 * (nx - 1) * (nz - 1)) as usize);
[INFO] [stdout]     |         ----^^^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> examples/ch11/../common/surface_data.rs:135:9
[INFO] [stdout]     |
[INFO] [stdout] 135 |     let mut normals: Vec<[f32; 3]> = Vec::with_capacity((4 * (nx - 1) * (nz - 1)) as usize);
[INFO] [stdout]     |         ----^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> examples/ch11/../common/surface_data.rs:136:9
[INFO] [stdout]     |
[INFO] [stdout] 136 |     let mut colors: Vec<[f32; 3]> = Vec::with_capacity((4 * (nx - 1) * (nz - 1)) as usize);
[INFO] [stdout]     |         ----^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cmin`
[INFO] [stdout]    --> examples/ch11/../common/surface_data.rs:131:9
[INFO] [stdout]     |
[INFO] [stdout] 131 |     let cmin = normalize_point([0.0, ymin1, 0.0], xmin, xmax, ymin, ymax, zmin, zmax, scale)[1];
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_cmin`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cmax`
[INFO] [stdout]    --> examples/ch11/../common/surface_data.rs:132:9
[INFO] [stdout]     |
[INFO] [stdout] 132 |     let cmax = normalize_point([0.0, ymax1, 0.0], xmin, xmax, ymin, ymax, zmin, zmax, scale)[1];
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_cmax`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> examples/ch11/../common/surface_data.rs:233:9
[INFO] [stdout]     |
[INFO] [stdout] 233 |     let mut uvs: Vec<[f32; 2]> = Vec::with_capacity((4 * (nu - 1) * (nv - 1)) as usize);
[INFO] [stdout]     |         ----^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> examples/ch11/../common/surface_data.rs:311:9
[INFO] [stdout]     |
[INFO] [stdout] 311 |     let mut uvs: Vec<[f32; 2]> = Vec::with_capacity((4 * (nu - 1) * (nv - 1)) as usize);
[INFO] [stdout]     |         ----^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> examples/ch11/../common/surface_data.rs:362:9
[INFO] [stdout]     |
[INFO] [stdout] 362 |     let mut mesh: Vec<[f32; 3]> = Vec::with_capacity((4 * (nx - 1) * (nz - 1)) as usize);
[INFO] [stdout]     |         ----^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `left`
[INFO] [stdout]    --> examples/ch10/../common/transforms.rs:105:5
[INFO] [stdout]     |
[INFO] [stdout] 105 |     left: f32,
[INFO] [stdout]     |     ^^^^ help: if this is intentional, prefix it with an underscore: `_left`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `right`
[INFO] [stdout]    --> examples/ch10/../common/transforms.rs:106:5
[INFO] [stdout]     |
[INFO] [stdout] 106 |     right: f32,
[INFO] [stdout]     |     ^^^^^ help: if this is intentional, prefix it with an underscore: `_right`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bottom`
[INFO] [stdout]    --> examples/ch10/../common/transforms.rs:107:5
[INFO] [stdout]     |
[INFO] [stdout] 107 |     bottom: f32,
[INFO] [stdout]     |     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_bottom`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `top`
[INFO] [stdout]    --> examples/ch10/../common/transforms.rs:108:5
[INFO] [stdout]     |
[INFO] [stdout] 108 |     top: f32,
[INFO] [stdout]     |     ^^^ help: if this is intentional, prefix it with an underscore: `_top`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `near`
[INFO] [stdout]    --> examples/ch10/../common/transforms.rs:109:5
[INFO] [stdout]     |
[INFO] [stdout] 109 |     near: f32,
[INFO] [stdout]     |     ^^^^ help: if this is intentional, prefix it with an underscore: `_near`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `far`
[INFO] [stdout]    --> examples/ch10/../common/transforms.rs:110:5
[INFO] [stdout]     |
[INFO] [stdout] 110 |     far: f32,
[INFO] [stdout]     |     ^^^ help: if this is intentional, prefix it with an underscore: `_far`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `left`
[INFO] [stdout]    --> examples/ch11/../common/transforms.rs:105:5
[INFO] [stdout]     |
[INFO] [stdout] 105 |     left: f32,
[INFO] [stdout]     |     ^^^^ help: if this is intentional, prefix it with an underscore: `_left`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `right`
[INFO] [stdout]    --> examples/ch11/../common/transforms.rs:106:5
[INFO] [stdout]     |
[INFO] [stdout] 106 |     right: f32,
[INFO] [stdout]     |     ^^^^^ help: if this is intentional, prefix it with an underscore: `_right`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bottom`
[INFO] [stdout]    --> examples/ch11/../common/transforms.rs:107:5
[INFO] [stdout]     |
[INFO] [stdout] 107 |     bottom: f32,
[INFO] [stdout]     |     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_bottom`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `top`
[INFO] [stdout]    --> examples/ch11/../common/transforms.rs:108:5
[INFO] [stdout]     |
[INFO] [stdout] 108 |     top: f32,
[INFO] [stdout]     |     ^^^ help: if this is intentional, prefix it with an underscore: `_top`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `near`
[INFO] [stdout]    --> examples/ch11/../common/transforms.rs:109:5
[INFO] [stdout]     |
[INFO] [stdout] 109 |     near: f32,
[INFO] [stdout]     |     ^^^^ help: if this is intentional, prefix it with an underscore: `_near`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `far`
[INFO] [stdout]    --> examples/ch11/../common/transforms.rs:110:5
[INFO] [stdout]     |
[INFO] [stdout] 110 |     far: f32,
[INFO] [stdout]     |     ^^^ help: if this is intentional, prefix it with an underscore: `_far`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `left`
[INFO] [stdout]    --> examples/ch14/../common/transforms.rs:105:5
[INFO] [stdout]     |
[INFO] [stdout] 105 |     left: f32,
[INFO] [stdout]     |     ^^^^ help: if this is intentional, prefix it with an underscore: `_left`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `right`
[INFO] [stdout]    --> examples/ch14/../common/transforms.rs:106:5
[INFO] [stdout]     |
[INFO] [stdout] 106 |     right: f32,
[INFO] [stdout]     |     ^^^^^ help: if this is intentional, prefix it with an underscore: `_right`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bottom`
[INFO] [stdout]    --> examples/ch14/../common/transforms.rs:107:5
[INFO] [stdout]     |
[INFO] [stdout] 107 |     bottom: f32,
[INFO] [stdout]     |     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_bottom`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `top`
[INFO] [stdout]    --> examples/ch14/../common/transforms.rs:108:5
[INFO] [stdout]     |
[INFO] [stdout] 108 |     top: f32,
[INFO] [stdout]     |     ^^^ help: if this is intentional, prefix it with an underscore: `_top`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `near`
[INFO] [stdout]    --> examples/ch14/../common/transforms.rs:109:5
[INFO] [stdout]     |
[INFO] [stdout] 109 |     near: f32,
[INFO] [stdout]     |     ^^^^ help: if this is intentional, prefix it with an underscore: `_near`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `far`
[INFO] [stdout]    --> examples/ch14/../common/transforms.rs:110:5
[INFO] [stdout]     |
[INFO] [stdout] 110 |     far: f32,
[INFO] [stdout]     |     ^^^ help: if this is intentional, prefix it with an underscore: `_far`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `uvs`
[INFO] [stdout]   --> examples/ch10/../common/vertex_data.rs:96:9
[INFO] [stdout]    |
[INFO] [stdout] 96 |     let uvs = [
[INFO] [stdout]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_uvs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `left`
[INFO] [stdout]    --> examples/ch07/../common/transforms.rs:105:5
[INFO] [stdout]     |
[INFO] [stdout] 105 |     left: f32,
[INFO] [stdout]     |     ^^^^ help: if this is intentional, prefix it with an underscore: `_left`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `right`
[INFO] [stdout]    --> examples/ch07/../common/transforms.rs:106:5
[INFO] [stdout]     |
[INFO] [stdout] 106 |     right: f32,
[INFO] [stdout]     |     ^^^^^ help: if this is intentional, prefix it with an underscore: `_right`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bottom`
[INFO] [stdout]    --> examples/ch07/../common/transforms.rs:107:5
[INFO] [stdout]     |
[INFO] [stdout] 107 |     bottom: f32,
[INFO] [stdout]     |     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_bottom`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `top`
[INFO] [stdout]    --> examples/ch07/../common/transforms.rs:108:5
[INFO] [stdout]     |
[INFO] [stdout] 108 |     top: f32,
[INFO] [stdout]     |     ^^^ help: if this is intentional, prefix it with an underscore: `_top`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `near`
[INFO] [stdout]    --> examples/ch07/../common/transforms.rs:109:5
[INFO] [stdout]     |
[INFO] [stdout] 109 |     near: f32,
[INFO] [stdout]     |     ^^^^ help: if this is intentional, prefix it with an underscore: `_near`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `far`
[INFO] [stdout]    --> examples/ch07/../common/transforms.rs:110:5
[INFO] [stdout]     |
[INFO] [stdout] 110 |     far: f32,
[INFO] [stdout]     |     ^^^ help: if this is intentional, prefix it with an underscore: `_far`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `left`
[INFO] [stdout]    --> examples/ch14/../common/transforms.rs:105:5
[INFO] [stdout]     |
[INFO] [stdout] 105 |     left: f32,
[INFO] [stdout]     |     ^^^^ help: if this is intentional, prefix it with an underscore: `_left`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `right`
[INFO] [stdout]    --> examples/ch14/../common/transforms.rs:106:5
[INFO] [stdout]     |
[INFO] [stdout] 106 |     right: f32,
[INFO] [stdout]     |     ^^^^^ help: if this is intentional, prefix it with an underscore: `_right`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bottom`
[INFO] [stdout]    --> examples/ch14/../common/transforms.rs:107:5
[INFO] [stdout]     |
[INFO] [stdout] 107 |     bottom: f32,
[INFO] [stdout]     |     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_bottom`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `top`
[INFO] [stdout]    --> examples/ch14/../common/transforms.rs:108:5
[INFO] [stdout]     |
[INFO] [stdout] 108 |     top: f32,
[INFO] [stdout]     |     ^^^ help: if this is intentional, prefix it with an underscore: `_top`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `near`
[INFO] [stdout]    --> examples/ch14/../common/transforms.rs:109:5
[INFO] [stdout]     |
[INFO] [stdout] 109 |     near: f32,
[INFO] [stdout]     |     ^^^^ help: if this is intentional, prefix it with an underscore: `_near`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `far`
[INFO] [stdout]    --> examples/ch14/../common/transforms.rs:110:5
[INFO] [stdout]     |
[INFO] [stdout] 110 |     far: f32,
[INFO] [stdout]     |     ^^^ help: if this is intentional, prefix it with an underscore: `_far`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `left`
[INFO] [stdout]    --> examples/ch07/../common/transforms.rs:105:5
[INFO] [stdout]     |
[INFO] [stdout] 105 |     left: f32,
[INFO] [stdout]     |     ^^^^ help: if this is intentional, prefix it with an underscore: `_left`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `right`
[INFO] [stdout]    --> examples/ch07/../common/transforms.rs:106:5
[INFO] [stdout]     |
[INFO] [stdout] 106 |     right: f32,
[INFO] [stdout]     |     ^^^^^ help: if this is intentional, prefix it with an underscore: `_right`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bottom`
[INFO] [stdout]    --> examples/ch07/../common/transforms.rs:107:5
[INFO] [stdout]     |
[INFO] [stdout] 107 |     bottom: f32,
[INFO] [stdout]     |     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_bottom`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `top`
[INFO] [stdout]    --> examples/ch07/../common/transforms.rs:108:5
[INFO] [stdout]     |
[INFO] [stdout] 108 |     top: f32,
[INFO] [stdout]     |     ^^^ help: if this is intentional, prefix it with an underscore: `_top`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `near`
[INFO] [stdout]    --> examples/ch07/../common/transforms.rs:109:5
[INFO] [stdout]     |
[INFO] [stdout] 109 |     near: f32,
[INFO] [stdout]     |     ^^^^ help: if this is intentional, prefix it with an underscore: `_near`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `far`
[INFO] [stdout]    --> examples/ch07/../common/transforms.rs:110:5
[INFO] [stdout]     |
[INFO] [stdout] 110 |     far: f32,
[INFO] [stdout]     |     ^^^ help: if this is intentional, prefix it with an underscore: `_far`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `left`
[INFO] [stdout]    --> examples/ch07/../common/transforms.rs:105:5
[INFO] [stdout]     |
[INFO] [stdout] 105 |     left: f32,
[INFO] [stdout]     |     ^^^^ help: if this is intentional, prefix it with an underscore: `_left`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `right`
[INFO] [stdout]    --> examples/ch07/../common/transforms.rs:106:5
[INFO] [stdout]     |
[INFO] [stdout] 106 |     right: f32,
[INFO] [stdout]     |     ^^^^^ help: if this is intentional, prefix it with an underscore: `_right`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bottom`
[INFO] [stdout]    --> examples/ch07/../common/transforms.rs:107:5
[INFO] [stdout]     |
[INFO] [stdout] 107 |     bottom: f32,
[INFO] [stdout]     |     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_bottom`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `top`
[INFO] [stdout]    --> examples/ch07/../common/transforms.rs:108:5
[INFO] [stdout]     |
[INFO] [stdout] 108 |     top: f32,
[INFO] [stdout]     |     ^^^ help: if this is intentional, prefix it with an underscore: `_top`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `near`
[INFO] [stdout]    --> examples/ch07/../common/transforms.rs:109:5
[INFO] [stdout]     |
[INFO] [stdout] 109 |     near: f32,
[INFO] [stdout]     |     ^^^^ help: if this is intentional, prefix it with an underscore: `_near`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `far`
[INFO] [stdout]    --> examples/ch07/../common/transforms.rs:110:5
[INFO] [stdout]     |
[INFO] [stdout] 110 |     far: f32,
[INFO] [stdout]     |     ^^^ help: if this is intentional, prefix it with an underscore: `_far`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `left`
[INFO] [stdout]    --> examples/ch14/../common/transforms.rs:105:5
[INFO] [stdout]     |
[INFO] [stdout] 105 |     left: f32,
[INFO] [stdout]     |     ^^^^ help: if this is intentional, prefix it with an underscore: `_left`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `right`
[INFO] [stdout]    --> examples/ch14/../common/transforms.rs:106:5
[INFO] [stdout]     |
[INFO] [stdout] 106 |     right: f32,
[INFO] [stdout]     |     ^^^^^ help: if this is intentional, prefix it with an underscore: `_right`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bottom`
[INFO] [stdout]    --> examples/ch14/../common/transforms.rs:107:5
[INFO] [stdout]     |
[INFO] [stdout] 107 |     bottom: f32,
[INFO] [stdout]     |     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_bottom`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `top`
[INFO] [stdout]    --> examples/ch14/../common/transforms.rs:108:5
[INFO] [stdout]     |
[INFO] [stdout] 108 |     top: f32,
[INFO] [stdout]     |     ^^^ help: if this is intentional, prefix it with an underscore: `_top`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `near`
[INFO] [stdout]    --> examples/ch14/../common/transforms.rs:109:5
[INFO] [stdout]     |
[INFO] [stdout] 109 |     near: f32,
[INFO] [stdout]     |     ^^^^ help: if this is intentional, prefix it with an underscore: `_near`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `far`
[INFO] [stdout]    --> examples/ch14/../common/transforms.rs:110:5
[INFO] [stdout]     |
[INFO] [stdout] 110 |     far: f32,
[INFO] [stdout]     |     ^^^ help: if this is intentional, prefix it with an underscore: `_far`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> examples/ch10/../common/surface_data.rs:134:9
[INFO] [stdout]     |
[INFO] [stdout] 134 |     let mut positions: Vec<[f32; 3]> = Vec::with_capacity((4 * (nx - 1) * (nz - 1)) as usize);
[INFO] [stdout]     |         ----^^^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> examples/ch10/../common/surface_data.rs:135:9
[INFO] [stdout]     |
[INFO] [stdout] 135 |     let mut normals: Vec<[f32; 3]> = Vec::with_capacity((4 * (nx - 1) * (nz - 1)) as usize);
[INFO] [stdout]     |         ----^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> examples/ch10/../common/surface_data.rs:136:9
[INFO] [stdout]     |
[INFO] [stdout] 136 |     let mut colors: Vec<[f32; 3]> = Vec::with_capacity((4 * (nx - 1) * (nz - 1)) as usize);
[INFO] [stdout]     |         ----^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cmin`
[INFO] [stdout]    --> examples/ch10/../common/surface_data.rs:131:9
[INFO] [stdout]     |
[INFO] [stdout] 131 |     let cmin = normalize_point([0.0, ymin1, 0.0], xmin, xmax, ymin, ymax, zmin, zmax, scale)[1];
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_cmin`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cmax`
[INFO] [stdout]    --> examples/ch10/../common/surface_data.rs:132:9
[INFO] [stdout]     |
[INFO] [stdout] 132 |     let cmax = normalize_point([0.0, ymax1, 0.0], xmin, xmax, ymin, ymax, zmin, zmax, scale)[1];
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_cmax`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> examples/ch10/../common/surface_data.rs:233:9
[INFO] [stdout]     |
[INFO] [stdout] 233 |     let mut uvs: Vec<[f32; 2]> = Vec::with_capacity((4 * (nu - 1) * (nv - 1)) as usize);
[INFO] [stdout]     |         ----^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> examples/ch10/../common/surface_data.rs:311:9
[INFO] [stdout]     |
[INFO] [stdout] 311 |     let mut uvs: Vec<[f32; 2]> = Vec::with_capacity((4 * (nu - 1) * (nv - 1)) as usize);
[INFO] [stdout]     |         ----^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> examples/ch10/../common/surface_data.rs:362:9
[INFO] [stdout]     |
[INFO] [stdout] 362 |     let mut mesh: Vec<[f32; 3]> = Vec::with_capacity((4 * (nx - 1) * (nz - 1)) as usize);
[INFO] [stdout]     |         ----^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `left`
[INFO] [stdout]    --> examples/ch10/../common/transforms.rs:105:5
[INFO] [stdout]     |
[INFO] [stdout] 105 |     left: f32,
[INFO] [stdout]     |     ^^^^ help: if this is intentional, prefix it with an underscore: `_left`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `right`
[INFO] [stdout]    --> examples/ch10/../common/transforms.rs:106:5
[INFO] [stdout]     |
[INFO] [stdout] 106 |     right: f32,
[INFO] [stdout]     |     ^^^^^ help: if this is intentional, prefix it with an underscore: `_right`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bottom`
[INFO] [stdout]    --> examples/ch10/../common/transforms.rs:107:5
[INFO] [stdout]     |
[INFO] [stdout] 107 |     bottom: f32,
[INFO] [stdout]     |     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_bottom`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `top`
[INFO] [stdout]    --> examples/ch10/../common/transforms.rs:108:5
[INFO] [stdout]     |
[INFO] [stdout] 108 |     top: f32,
[INFO] [stdout]     |     ^^^ help: if this is intentional, prefix it with an underscore: `_top`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `near`
[INFO] [stdout]    --> examples/ch10/../common/transforms.rs:109:5
[INFO] [stdout]     |
[INFO] [stdout] 109 |     near: f32,
[INFO] [stdout]     |     ^^^^ help: if this is intentional, prefix it with an underscore: `_near`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `far`
[INFO] [stdout]    --> examples/ch10/../common/transforms.rs:110:5
[INFO] [stdout]     |
[INFO] [stdout] 110 |     far: f32,
[INFO] [stdout]     |     ^^^ help: if this is intentional, prefix it with an underscore: `_far`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> examples/ch10/../common/surface_data.rs:134:9
[INFO] [stdout]     |
[INFO] [stdout] 134 |     let mut positions: Vec<[f32; 3]> = Vec::with_capacity((4 * (nx - 1) * (nz - 1)) as usize);
[INFO] [stdout]     |         ----^^^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> examples/ch10/../common/surface_data.rs:135:9
[INFO] [stdout]     |
[INFO] [stdout] 135 |     let mut normals: Vec<[f32; 3]> = Vec::with_capacity((4 * (nx - 1) * (nz - 1)) as usize);
[INFO] [stdout]     |         ----^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> examples/ch10/../common/surface_data.rs:136:9
[INFO] [stdout]     |
[INFO] [stdout] 136 |     let mut colors: Vec<[f32; 3]> = Vec::with_capacity((4 * (nx - 1) * (nz - 1)) as usize);
[INFO] [stdout]     |         ----^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cmin`
[INFO] [stdout]    --> examples/ch10/../common/surface_data.rs:131:9
[INFO] [stdout]     |
[INFO] [stdout] 131 |     let cmin = normalize_point([0.0, ymin1, 0.0], xmin, xmax, ymin, ymax, zmin, zmax, scale)[1];
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_cmin`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cmax`
[INFO] [stdout]    --> examples/ch10/../common/surface_data.rs:132:9
[INFO] [stdout]     |
[INFO] [stdout] 132 |     let cmax = normalize_point([0.0, ymax1, 0.0], xmin, xmax, ymin, ymax, zmin, zmax, scale)[1];
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_cmax`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> examples/ch10/../common/surface_data.rs:233:9
[INFO] [stdout]     |
[INFO] [stdout] 233 |     let mut uvs: Vec<[f32; 2]> = Vec::with_capacity((4 * (nu - 1) * (nv - 1)) as usize);
[INFO] [stdout]     |         ----^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> examples/ch10/../common/surface_data.rs:311:9
[INFO] [stdout]     |
[INFO] [stdout] 311 |     let mut uvs: Vec<[f32; 2]> = Vec::with_capacity((4 * (nu - 1) * (nv - 1)) as usize);
[INFO] [stdout]     |         ----^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> examples/ch10/../common/surface_data.rs:362:9
[INFO] [stdout]     |
[INFO] [stdout] 362 |     let mut mesh: Vec<[f32; 3]> = Vec::with_capacity((4 * (nx - 1) * (nz - 1)) as usize);
[INFO] [stdout]     |         ----^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `left`
[INFO] [stdout]    --> examples/ch10/../common/transforms.rs:105:5
[INFO] [stdout]     |
[INFO] [stdout] 105 |     left: f32,
[INFO] [stdout]     |     ^^^^ help: if this is intentional, prefix it with an underscore: `_left`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `right`
[INFO] [stdout]    --> examples/ch10/../common/transforms.rs:106:5
[INFO] [stdout]     |
[INFO] [stdout] 106 |     right: f32,
[INFO] [stdout]     |     ^^^^^ help: if this is intentional, prefix it with an underscore: `_right`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bottom`
[INFO] [stdout]    --> examples/ch10/../common/transforms.rs:107:5
[INFO] [stdout]     |
[INFO] [stdout] 107 |     bottom: f32,
[INFO] [stdout]     |     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_bottom`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `top`
[INFO] [stdout]    --> examples/ch10/../common/transforms.rs:108:5
[INFO] [stdout]     |
[INFO] [stdout] 108 |     top: f32,
[INFO] [stdout]     |     ^^^ help: if this is intentional, prefix it with an underscore: `_top`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `near`
[INFO] [stdout]    --> examples/ch10/../common/transforms.rs:109:5
[INFO] [stdout]     |
[INFO] [stdout] 109 |     near: f32,
[INFO] [stdout]     |     ^^^^ help: if this is intentional, prefix it with an underscore: `_near`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `far`
[INFO] [stdout]    --> examples/ch10/../common/transforms.rs:110:5
[INFO] [stdout]     |
[INFO] [stdout] 110 |     far: f32,
[INFO] [stdout]     |     ^^^ help: if this is intentional, prefix it with an underscore: `_far`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> examples/ch11/../common/surface_data.rs:134:9
[INFO] [stdout]     |
[INFO] [stdout] 134 |     let mut positions: Vec<[f32; 3]> = Vec::with_capacity((4 * (nx - 1) * (nz - 1)) as usize);
[INFO] [stdout]     |         ----^^^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> examples/ch11/../common/surface_data.rs:135:9
[INFO] [stdout]     |
[INFO] [stdout] 135 |     let mut normals: Vec<[f32; 3]> = Vec::with_capacity((4 * (nx - 1) * (nz - 1)) as usize);
[INFO] [stdout]     |         ----^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> examples/ch11/../common/surface_data.rs:136:9
[INFO] [stdout]     |
[INFO] [stdout] 136 |     let mut colors: Vec<[f32; 3]> = Vec::with_capacity((4 * (nx - 1) * (nz - 1)) as usize);
[INFO] [stdout]     |         ----^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cmin`
[INFO] [stdout]    --> examples/ch11/../common/surface_data.rs:131:9
[INFO] [stdout]     |
[INFO] [stdout] 131 |     let cmin = normalize_point([0.0, ymin1, 0.0], xmin, xmax, ymin, ymax, zmin, zmax, scale)[1];
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_cmin`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cmax`
[INFO] [stdout]    --> examples/ch11/../common/surface_data.rs:132:9
[INFO] [stdout]     |
[INFO] [stdout] 132 |     let cmax = normalize_point([0.0, ymax1, 0.0], xmin, xmax, ymin, ymax, zmin, zmax, scale)[1];
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_cmax`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> examples/ch11/../common/surface_data.rs:233:9
[INFO] [stdout]     |
[INFO] [stdout] 233 |     let mut uvs: Vec<[f32; 2]> = Vec::with_capacity((4 * (nu - 1) * (nv - 1)) as usize);
[INFO] [stdout]     |         ----^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> examples/ch11/../common/surface_data.rs:311:9
[INFO] [stdout]     |
[INFO] [stdout] 311 |     let mut uvs: Vec<[f32; 2]> = Vec::with_capacity((4 * (nu - 1) * (nv - 1)) as usize);
[INFO] [stdout]     |         ----^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> examples/ch11/../common/surface_data.rs:362:9
[INFO] [stdout]     |
[INFO] [stdout] 362 |     let mut mesh: Vec<[f32; 3]> = Vec::with_capacity((4 * (nx - 1) * (nz - 1)) as usize);
[INFO] [stdout]     |         ----^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `left`
[INFO] [stdout]    --> examples/ch08/../common/transforms.rs:105:5
[INFO] [stdout]     |
[INFO] [stdout] 105 |     left: f32,
[INFO] [stdout]     |     ^^^^ help: if this is intentional, prefix it with an underscore: `_left`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `right`
[INFO] [stdout]    --> examples/ch08/../common/transforms.rs:106:5
[INFO] [stdout]     |
[INFO] [stdout] 106 |     right: f32,
[INFO] [stdout]     |     ^^^^^ help: if this is intentional, prefix it with an underscore: `_right`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bottom`
[INFO] [stdout]    --> examples/ch08/../common/transforms.rs:107:5
[INFO] [stdout]     |
[INFO] [stdout] 107 |     bottom: f32,
[INFO] [stdout]     |     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_bottom`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `top`
[INFO] [stdout]    --> examples/ch08/../common/transforms.rs:108:5
[INFO] [stdout]     |
[INFO] [stdout] 108 |     top: f32,
[INFO] [stdout]     |     ^^^ help: if this is intentional, prefix it with an underscore: `_top`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `near`
[INFO] [stdout]    --> examples/ch08/../common/transforms.rs:109:5
[INFO] [stdout]     |
[INFO] [stdout] 109 |     near: f32,
[INFO] [stdout]     |     ^^^^ help: if this is intentional, prefix it with an underscore: `_near`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `far`
[INFO] [stdout]    --> examples/ch08/../common/transforms.rs:110:5
[INFO] [stdout]     |
[INFO] [stdout] 110 |     far: f32,
[INFO] [stdout]     |     ^^^ help: if this is intentional, prefix it with an underscore: `_far`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `uvs`
[INFO] [stdout]   --> examples/ch08/../common/vertex_data.rs:96:9
[INFO] [stdout]    |
[INFO] [stdout] 96 |     let uvs = [
[INFO] [stdout]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_uvs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `left`
[INFO] [stdout]    --> examples/ch11/../common/transforms.rs:105:5
[INFO] [stdout]     |
[INFO] [stdout] 105 |     left: f32,
[INFO] [stdout]     |     ^^^^ help: if this is intentional, prefix it with an underscore: `_left`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `right`
[INFO] [stdout]    --> examples/ch11/../common/transforms.rs:106:5
[INFO] [stdout]     |
[INFO] [stdout] 106 |     right: f32,
[INFO] [stdout]     |     ^^^^^ help: if this is intentional, prefix it with an underscore: `_right`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bottom`
[INFO] [stdout]    --> examples/ch11/../common/transforms.rs:107:5
[INFO] [stdout]     |
[INFO] [stdout] 107 |     bottom: f32,
[INFO] [stdout]     |     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_bottom`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `top`
[INFO] [stdout]    --> examples/ch11/../common/transforms.rs:108:5
[INFO] [stdout]     |
[INFO] [stdout] 108 |     top: f32,
[INFO] [stdout]     |     ^^^ help: if this is intentional, prefix it with an underscore: `_top`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `near`
[INFO] [stdout]    --> examples/ch11/../common/transforms.rs:109:5
[INFO] [stdout]     |
[INFO] [stdout] 109 |     near: f32,
[INFO] [stdout]     |     ^^^^ help: if this is intentional, prefix it with an underscore: `_near`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `far`
[INFO] [stdout]    --> examples/ch11/../common/transforms.rs:110:5
[INFO] [stdout]     |
[INFO] [stdout] 110 |     far: f32,
[INFO] [stdout]     |     ^^^ help: if this is intentional, prefix it with an underscore: `_far`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `uvs`
[INFO] [stdout]   --> examples/ch10/../common/vertex_data.rs:96:9
[INFO] [stdout]    |
[INFO] [stdout] 96 |     let uvs = [
[INFO] [stdout]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_uvs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `left`
[INFO] [stdout]    --> examples/ch13/../common/transforms.rs:105:5
[INFO] [stdout]     |
[INFO] [stdout] 105 |     left: f32,
[INFO] [stdout]     |     ^^^^ help: if this is intentional, prefix it with an underscore: `_left`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `uvs`
[INFO] [stdout]   --> examples/ch10/../common/vertex_data.rs:96:9
[INFO] [stdout]    |
[INFO] [stdout] 96 |     let uvs = [
[INFO] [stdout]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_uvs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `right`
[INFO] [stdout]    --> examples/ch13/../common/transforms.rs:106:5
[INFO] [stdout]     |
[INFO] [stdout] 106 |     right: f32,
[INFO] [stdout]     |     ^^^^^ help: if this is intentional, prefix it with an underscore: `_right`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bottom`
[INFO] [stdout]    --> examples/ch13/../common/transforms.rs:107:5
[INFO] [stdout]     |
[INFO] [stdout] 107 |     bottom: f32,
[INFO] [stdout]     |     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_bottom`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `top`
[INFO] [stdout]    --> examples/ch13/../common/transforms.rs:108:5
[INFO] [stdout]     |
[INFO] [stdout] 108 |     top: f32,
[INFO] [stdout]     |     ^^^ help: if this is intentional, prefix it with an underscore: `_top`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `near`
[INFO] [stdout]    --> examples/ch13/../common/transforms.rs:109:5
[INFO] [stdout]     |
[INFO] [stdout] 109 |     near: f32,
[INFO] [stdout]     |     ^^^^ help: if this is intentional, prefix it with an underscore: `_near`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `far`
[INFO] [stdout]    --> examples/ch13/../common/transforms.rs:110:5
[INFO] [stdout]     |
[INFO] [stdout] 110 |     far: f32,
[INFO] [stdout]     |     ^^^ help: if this is intentional, prefix it with an underscore: `_far`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> examples/ch10/../common/surface_data.rs:134:9
[INFO] [stdout]     |
[INFO] [stdout] 134 |     let mut positions: Vec<[f32; 3]> = Vec::with_capacity((4 * (nx - 1) * (nz - 1)) as usize);
[INFO] [stdout]     |         ----^^^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> examples/ch10/../common/surface_data.rs:135:9
[INFO] [stdout]     |
[INFO] [stdout] 135 |     let mut normals: Vec<[f32; 3]> = Vec::with_capacity((4 * (nx - 1) * (nz - 1)) as usize);
[INFO] [stdout]     |         ----^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> examples/ch10/../common/surface_data.rs:136:9
[INFO] [stdout]     |
[INFO] [stdout] 136 |     let mut colors: Vec<[f32; 3]> = Vec::with_capacity((4 * (nx - 1) * (nz - 1)) as usize);
[INFO] [stdout]     |         ----^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cmin`
[INFO] [stdout]    --> examples/ch10/../common/surface_data.rs:131:9
[INFO] [stdout]     |
[INFO] [stdout] 131 |     let cmin = normalize_point([0.0, ymin1, 0.0], xmin, xmax, ymin, ymax, zmin, zmax, scale)[1];
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_cmin`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cmax`
[INFO] [stdout]    --> examples/ch10/../common/surface_data.rs:132:9
[INFO] [stdout]     |
[INFO] [stdout] 132 |     let cmax = normalize_point([0.0, ymax1, 0.0], xmin, xmax, ymin, ymax, zmin, zmax, scale)[1];
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_cmax`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> examples/ch10/../common/surface_data.rs:233:9
[INFO] [stdout]     |
[INFO] [stdout] 233 |     let mut uvs: Vec<[f32; 2]> = Vec::with_capacity((4 * (nu - 1) * (nv - 1)) as usize);
[INFO] [stdout]     |         ----^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> examples/ch10/../common/surface_data.rs:311:9
[INFO] [stdout]     |
[INFO] [stdout] 311 |     let mut uvs: Vec<[f32; 2]> = Vec::with_capacity((4 * (nu - 1) * (nv - 1)) as usize);
[INFO] [stdout]     |         ----^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> examples/ch10/../common/surface_data.rs:362:9
[INFO] [stdout]     |
[INFO] [stdout] 362 |     let mut mesh: Vec<[f32; 3]> = Vec::with_capacity((4 * (nx - 1) * (nz - 1)) as usize);
[INFO] [stdout]     |         ----^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `left`
[INFO] [stdout]    --> examples/ch10/../common/transforms.rs:105:5
[INFO] [stdout]     |
[INFO] [stdout] 105 |     left: f32,
[INFO] [stdout]     |     ^^^^ help: if this is intentional, prefix it with an underscore: `_left`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `right`
[INFO] [stdout]    --> examples/ch10/../common/transforms.rs:106:5
[INFO] [stdout]     |
[INFO] [stdout] 106 |     right: f32,
[INFO] [stdout]     |     ^^^^^ help: if this is intentional, prefix it with an underscore: `_right`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bottom`
[INFO] [stdout]    --> examples/ch10/../common/transforms.rs:107:5
[INFO] [stdout]     |
[INFO] [stdout] 107 |     bottom: f32,
[INFO] [stdout]     |     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_bottom`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `top`
[INFO] [stdout]    --> examples/ch10/../common/transforms.rs:108:5
[INFO] [stdout]     |
[INFO] [stdout] 108 |     top: f32,
[INFO] [stdout]     |     ^^^ help: if this is intentional, prefix it with an underscore: `_top`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `near`
[INFO] [stdout]    --> examples/ch10/../common/transforms.rs:109:5
[INFO] [stdout]     |
[INFO] [stdout] 109 |     near: f32,
[INFO] [stdout]     |     ^^^^ help: if this is intentional, prefix it with an underscore: `_near`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `far`
[INFO] [stdout]    --> examples/ch10/../common/transforms.rs:110:5
[INFO] [stdout]     |
[INFO] [stdout] 110 |     far: f32,
[INFO] [stdout]     |     ^^^ help: if this is intentional, prefix it with an underscore: `_far`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> examples/ch09/../common/surface_data.rs:134:9
[INFO] [stdout]     |
[INFO] [stdout] 134 |     let mut positions: Vec<[f32; 3]> = Vec::with_capacity((4 * (nx - 1) * (nz - 1)) as usize);
[INFO] [stdout]     |         ----^^^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> examples/ch09/../common/surface_data.rs:135:9
[INFO] [stdout]     |
[INFO] [stdout] 135 |     let mut normals: Vec<[f32; 3]> = Vec::with_capacity((4 * (nx - 1) * (nz - 1)) as usize);
[INFO] [stdout]     |         ----^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> examples/ch09/../common/surface_data.rs:136:9
[INFO] [stdout]     |
[INFO] [stdout] 136 |     let mut colors: Vec<[f32; 3]> = Vec::with_capacity((4 * (nx - 1) * (nz - 1)) as usize);
[INFO] [stdout]     |         ----^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cmin`
[INFO] [stdout]    --> examples/ch09/../common/surface_data.rs:131:9
[INFO] [stdout]     |
[INFO] [stdout] 131 |     let cmin = normalize_point([0.0, ymin1, 0.0], xmin, xmax, ymin, ymax, zmin, zmax, scale)[1];
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_cmin`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cmax`
[INFO] [stdout]    --> examples/ch09/../common/surface_data.rs:132:9
[INFO] [stdout]     |
[INFO] [stdout] 132 |     let cmax = normalize_point([0.0, ymax1, 0.0], xmin, xmax, ymin, ymax, zmin, zmax, scale)[1];
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_cmax`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `left`
[INFO] [stdout]    --> examples/ch08/../common/transforms.rs:105:5
[INFO] [stdout]     |
[INFO] [stdout] 105 |     left: f32,
[INFO] [stdout]     |     ^^^^ help: if this is intentional, prefix it with an underscore: `_left`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `right`
[INFO] [stdout]    --> examples/ch08/../common/transforms.rs:106:5
[INFO] [stdout]     |
[INFO] [stdout] 106 |     right: f32,
[INFO] [stdout]     |     ^^^^^ help: if this is intentional, prefix it with an underscore: `_right`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bottom`
[INFO] [stdout]    --> examples/ch08/../common/transforms.rs:107:5
[INFO] [stdout]     |
[INFO] [stdout] 107 |     bottom: f32,
[INFO] [stdout]     |     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_bottom`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `top`
[INFO] [stdout]    --> examples/ch08/../common/transforms.rs:108:5
[INFO] [stdout]     |
[INFO] [stdout] 108 |     top: f32,
[INFO] [stdout]     |     ^^^ help: if this is intentional, prefix it with an underscore: `_top`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `near`
[INFO] [stdout]    --> examples/ch08/../common/transforms.rs:109:5
[INFO] [stdout]     |
[INFO] [stdout] 109 |     near: f32,
[INFO] [stdout]     |     ^^^^ help: if this is intentional, prefix it with an underscore: `_near`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `far`
[INFO] [stdout]    --> examples/ch08/../common/transforms.rs:110:5
[INFO] [stdout]     |
[INFO] [stdout] 110 |     far: f32,
[INFO] [stdout]     |     ^^^ help: if this is intentional, prefix it with an underscore: `_far`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> examples/ch09/../common/surface_data.rs:233:9
[INFO] [stdout]     |
[INFO] [stdout] 233 |     let mut uvs: Vec<[f32; 2]> = Vec::with_capacity((4 * (nu - 1) * (nv - 1)) as usize);
[INFO] [stdout]     |         ----^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> examples/ch09/../common/surface_data.rs:311:9
[INFO] [stdout]     |
[INFO] [stdout] 311 |     let mut uvs: Vec<[f32; 2]> = Vec::with_capacity((4 * (nu - 1) * (nv - 1)) as usize);
[INFO] [stdout]     |         ----^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> examples/ch09/../common/surface_data.rs:134:9
[INFO] [stdout]     |
[INFO] [stdout] 134 |     let mut positions: Vec<[f32; 3]> = Vec::with_capacity((4 * (nx - 1) * (nz - 1)) as usize);
[INFO] [stdout]     |         ----^^^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> examples/ch09/../common/surface_data.rs:135:9
[INFO] [stdout]     |
[INFO] [stdout] 135 |     let mut normals: Vec<[f32; 3]> = Vec::with_capacity((4 * (nx - 1) * (nz - 1)) as usize);
[INFO] [stdout]     |         ----^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> examples/ch09/../common/surface_data.rs:136:9
[INFO] [stdout]     |
[INFO] [stdout] 136 |     let mut colors: Vec<[f32; 3]> = Vec::with_capacity((4 * (nx - 1) * (nz - 1)) as usize);
[INFO] [stdout]     |         ----^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cmin`
[INFO] [stdout]    --> examples/ch09/../common/surface_data.rs:131:9
[INFO] [stdout]     |
[INFO] [stdout] 131 |     let cmin = normalize_point([0.0, ymin1, 0.0], xmin, xmax, ymin, ymax, zmin, zmax, scale)[1];
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_cmin`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cmax`
[INFO] [stdout]    --> examples/ch09/../common/surface_data.rs:132:9
[INFO] [stdout]     |
[INFO] [stdout] 132 |     let cmax = normalize_point([0.0, ymax1, 0.0], xmin, xmax, ymin, ymax, zmin, zmax, scale)[1];
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_cmax`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> examples/ch09/../common/surface_data.rs:233:9
[INFO] [stdout]     |
[INFO] [stdout] 233 |     let mut uvs: Vec<[f32; 2]> = Vec::with_capacity((4 * (nu - 1) * (nv - 1)) as usize);
[INFO] [stdout]     |         ----^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> examples/ch09/../common/surface_data.rs:311:9
[INFO] [stdout]     |
[INFO] [stdout] 311 |     let mut uvs: Vec<[f32; 2]> = Vec::with_capacity((4 * (nu - 1) * (nv - 1)) as usize);
[INFO] [stdout]     |         ----^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> examples/ch09/../common/surface_data.rs:362:9
[INFO] [stdout]     |
[INFO] [stdout] 362 |     let mut mesh: Vec<[f32; 3]> = Vec::with_capacity((4 * (nx - 1) * (nz - 1)) as usize);
[INFO] [stdout]     |         ----^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> examples/ch09/../common/surface_data.rs:362:9
[INFO] [stdout]     |
[INFO] [stdout] 362 |     let mut mesh: Vec<[f32; 3]> = Vec::with_capacity((4 * (nx - 1) * (nz - 1)) as usize);
[INFO] [stdout]     |         ----^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `left`
[INFO] [stdout]    --> examples/ch09/../common/transforms.rs:105:5
[INFO] [stdout]     |
[INFO] [stdout] 105 |     left: f32,
[INFO] [stdout]     |     ^^^^ help: if this is intentional, prefix it with an underscore: `_left`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `right`
[INFO] [stdout]    --> examples/ch09/../common/transforms.rs:106:5
[INFO] [stdout]     |
[INFO] [stdout] 106 |     right: f32,
[INFO] [stdout]     |     ^^^^^ help: if this is intentional, prefix it with an underscore: `_right`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bottom`
[INFO] [stdout]    --> examples/ch09/../common/transforms.rs:107:5
[INFO] [stdout]     |
[INFO] [stdout] 107 |     bottom: f32,
[INFO] [stdout]     |     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_bottom`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `top`
[INFO] [stdout]    --> examples/ch09/../common/transforms.rs:108:5
[INFO] [stdout]     |
[INFO] [stdout] 108 |     top: f32,
[INFO] [stdout]     |     ^^^ help: if this is intentional, prefix it with an underscore: `_top`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `near`
[INFO] [stdout]    --> examples/ch09/../common/transforms.rs:109:5
[INFO] [stdout]     |
[INFO] [stdout] 109 |     near: f32,
[INFO] [stdout]     |     ^^^^ help: if this is intentional, prefix it with an underscore: `_near`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `far`
[INFO] [stdout]    --> examples/ch09/../common/transforms.rs:110:5
[INFO] [stdout]     |
[INFO] [stdout] 110 |     far: f32,
[INFO] [stdout]     |     ^^^ help: if this is intentional, prefix it with an underscore: `_far`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `left`
[INFO] [stdout]    --> examples/ch09/../common/transforms.rs:105:5
[INFO] [stdout]     |
[INFO] [stdout] 105 |     left: f32,
[INFO] [stdout]     |     ^^^^ help: if this is intentional, prefix it with an underscore: `_left`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `right`
[INFO] [stdout]    --> examples/ch09/../common/transforms.rs:106:5
[INFO] [stdout]     |
[INFO] [stdout] 106 |     right: f32,
[INFO] [stdout]     |     ^^^^^ help: if this is intentional, prefix it with an underscore: `_right`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bottom`
[INFO] [stdout]    --> examples/ch09/../common/transforms.rs:107:5
[INFO] [stdout]     |
[INFO] [stdout] 107 |     bottom: f32,
[INFO] [stdout]     |     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_bottom`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `top`
[INFO] [stdout]    --> examples/ch09/../common/transforms.rs:108:5
[INFO] [stdout]     |
[INFO] [stdout] 108 |     top: f32,
[INFO] [stdout]     |     ^^^ help: if this is intentional, prefix it with an underscore: `_top`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `near`
[INFO] [stdout]    --> examples/ch09/../common/transforms.rs:109:5
[INFO] [stdout]     |
[INFO] [stdout] 109 |     near: f32,
[INFO] [stdout]     |     ^^^^ help: if this is intentional, prefix it with an underscore: `_near`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `far`
[INFO] [stdout]    --> examples/ch09/../common/transforms.rs:110:5
[INFO] [stdout]     |
[INFO] [stdout] 110 |     far: f32,
[INFO] [stdout]     |     ^^^ help: if this is intentional, prefix it with an underscore: `_far`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `uvs`
[INFO] [stdout]   --> examples/ch08/../common/vertex_data.rs:96:9
[INFO] [stdout]    |
[INFO] [stdout] 96 |     let uvs = [
[INFO] [stdout]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_uvs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `left`
[INFO] [stdout]    --> examples/ch07/../common/transforms.rs:105:5
[INFO] [stdout]     |
[INFO] [stdout] 105 |     left: f32,
[INFO] [stdout]     |     ^^^^ help: if this is intentional, prefix it with an underscore: `_left`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `right`
[INFO] [stdout]    --> examples/ch07/../common/transforms.rs:106:5
[INFO] [stdout]     |
[INFO] [stdout] 106 |     right: f32,
[INFO] [stdout]     |     ^^^^^ help: if this is intentional, prefix it with an underscore: `_right`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bottom`
[INFO] [stdout]    --> examples/ch07/../common/transforms.rs:107:5
[INFO] [stdout]     |
[INFO] [stdout] 107 |     bottom: f32,
[INFO] [stdout]     |     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_bottom`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `top`
[INFO] [stdout]    --> examples/ch07/../common/transforms.rs:108:5
[INFO] [stdout]     |
[INFO] [stdout] 108 |     top: f32,
[INFO] [stdout]     |     ^^^ help: if this is intentional, prefix it with an underscore: `_top`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `near`
[INFO] [stdout]    --> examples/ch07/../common/transforms.rs:109:5
[INFO] [stdout]     |
[INFO] [stdout] 109 |     near: f32,
[INFO] [stdout]     |     ^^^^ help: if this is intentional, prefix it with an underscore: `_near`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `far`
[INFO] [stdout]    --> examples/ch07/../common/transforms.rs:110:5
[INFO] [stdout]     |
[INFO] [stdout] 110 |     far: f32,
[INFO] [stdout]     |     ^^^ help: if this is intentional, prefix it with an underscore: `_far`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `left`
[INFO] [stdout]    --> examples/ch08/../common/transforms.rs:105:5
[INFO] [stdout]     |
[INFO] [stdout] 105 |     left: f32,
[INFO] [stdout]     |     ^^^^ help: if this is intentional, prefix it with an underscore: `_left`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `right`
[INFO] [stdout]    --> examples/ch08/../common/transforms.rs:106:5
[INFO] [stdout]     |
[INFO] [stdout] 106 |     right: f32,
[INFO] [stdout]     |     ^^^^^ help: if this is intentional, prefix it with an underscore: `_right`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bottom`
[INFO] [stdout]    --> examples/ch08/../common/transforms.rs:107:5
[INFO] [stdout]     |
[INFO] [stdout] 107 |     bottom: f32,
[INFO] [stdout]     |     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_bottom`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `top`
[INFO] [stdout]    --> examples/ch08/../common/transforms.rs:108:5
[INFO] [stdout]     |
[INFO] [stdout] 108 |     top: f32,
[INFO] [stdout]     |     ^^^ help: if this is intentional, prefix it with an underscore: `_top`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `near`
[INFO] [stdout]    --> examples/ch08/../common/transforms.rs:109:5
[INFO] [stdout]     |
[INFO] [stdout] 109 |     near: f32,
[INFO] [stdout]     |     ^^^^ help: if this is intentional, prefix it with an underscore: `_near`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `far`
[INFO] [stdout]    --> examples/ch08/../common/transforms.rs:110:5
[INFO] [stdout]     |
[INFO] [stdout] 110 |     far: f32,
[INFO] [stdout]     |     ^^^ help: if this is intentional, prefix it with an underscore: `_far`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `left`
[INFO] [stdout]    --> examples/ch12/../common/transforms.rs:105:5
[INFO] [stdout]     |
[INFO] [stdout] 105 |     left: f32,
[INFO] [stdout]     |     ^^^^ help: if this is intentional, prefix it with an underscore: `_left`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `right`
[INFO] [stdout]    --> examples/ch12/../common/transforms.rs:106:5
[INFO] [stdout]     |
[INFO] [stdout] 106 |     right: f32,
[INFO] [stdout]     |     ^^^^^ help: if this is intentional, prefix it with an underscore: `_right`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bottom`
[INFO] [stdout]    --> examples/ch12/../common/transforms.rs:107:5
[INFO] [stdout]     |
[INFO] [stdout] 107 |     bottom: f32,
[INFO] [stdout]     |     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_bottom`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `top`
[INFO] [stdout]    --> examples/ch12/../common/transforms.rs:108:5
[INFO] [stdout]     |
[INFO] [stdout] 108 |     top: f32,
[INFO] [stdout]     |     ^^^ help: if this is intentional, prefix it with an underscore: `_top`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `near`
[INFO] [stdout]    --> examples/ch12/../common/transforms.rs:109:5
[INFO] [stdout]     |
[INFO] [stdout] 109 |     near: f32,
[INFO] [stdout]     |     ^^^^ help: if this is intentional, prefix it with an underscore: `_near`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `far`
[INFO] [stdout]    --> examples/ch12/../common/transforms.rs:110:5
[INFO] [stdout]     |
[INFO] [stdout] 110 |     far: f32,
[INFO] [stdout]     |     ^^^ help: if this is intentional, prefix it with an underscore: `_far`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `uvs`
[INFO] [stdout]   --> examples/ch08/../common/vertex_data.rs:96:9
[INFO] [stdout]    |
[INFO] [stdout] 96 |     let uvs = [
[INFO] [stdout]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_uvs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `uvs`
[INFO] [stdout]   --> examples/ch12/../common/vertex_data.rs:96:9
[INFO] [stdout]    |
[INFO] [stdout] 96 |     let uvs = [
[INFO] [stdout]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_uvs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `left`
[INFO] [stdout]    --> examples/ch06/../common/transforms.rs:105:5
[INFO] [stdout]     |
[INFO] [stdout] 105 |     left: f32,
[INFO] [stdout]     |     ^^^^ help: if this is intentional, prefix it with an underscore: `_left`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `right`
[INFO] [stdout]    --> examples/ch06/../common/transforms.rs:106:5
[INFO] [stdout]     |
[INFO] [stdout] 106 |     right: f32,
[INFO] [stdout]     |     ^^^^^ help: if this is intentional, prefix it with an underscore: `_right`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bottom`
[INFO] [stdout]    --> examples/ch06/../common/transforms.rs:107:5
[INFO] [stdout]     |
[INFO] [stdout] 107 |     bottom: f32,
[INFO] [stdout]     |     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_bottom`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `top`
[INFO] [stdout]    --> examples/ch06/../common/transforms.rs:108:5
[INFO] [stdout]     |
[INFO] [stdout] 108 |     top: f32,
[INFO] [stdout]     |     ^^^ help: if this is intentional, prefix it with an underscore: `_top`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `near`
[INFO] [stdout]    --> examples/ch06/../common/transforms.rs:109:5
[INFO] [stdout]     |
[INFO] [stdout] 109 |     near: f32,
[INFO] [stdout]     |     ^^^^ help: if this is intentional, prefix it with an underscore: `_near`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `far`
[INFO] [stdout]    --> examples/ch06/../common/transforms.rs:110:5
[INFO] [stdout]     |
[INFO] [stdout] 110 |     far: f32,
[INFO] [stdout]     |     ^^^ help: if this is intentional, prefix it with an underscore: `_far`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `uvs`
[INFO] [stdout]   --> examples/ch06/../common/vertex_data.rs:96:9
[INFO] [stdout]    |
[INFO] [stdout] 96 |     let uvs = [
[INFO] [stdout]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_uvs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `view_project_mat`
[INFO] [stdout]   --> examples/ch12/two_cubes.rs:73:37
[INFO] [stdout]    |
[INFO] [stdout] 73 |         let (view_mat, project_mat, view_project_mat) = transforms::create_view_projection(
[INFO] [stdout]    |                                     ^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_view_project_mat`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `left`
[INFO] [stdout]    --> examples/ch08/../common/transforms.rs:105:5
[INFO] [stdout]     |
[INFO] [stdout] 105 |     left: f32,
[INFO] [stdout]     |     ^^^^ help: if this is intentional, prefix it with an underscore: `_left`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `right`
[INFO] [stdout]    --> examples/ch08/../common/transforms.rs:106:5
[INFO] [stdout]     |
[INFO] [stdout] 106 |     right: f32,
[INFO] [stdout]     |     ^^^^^ help: if this is intentional, prefix it with an underscore: `_right`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bottom`
[INFO] [stdout]    --> examples/ch08/../common/transforms.rs:107:5
[INFO] [stdout]     |
[INFO] [stdout] 107 |     bottom: f32,
[INFO] [stdout]     |     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_bottom`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `top`
[INFO] [stdout]    --> examples/ch08/../common/transforms.rs:108:5
[INFO] [stdout]     |
[INFO] [stdout] 108 |     top: f32,
[INFO] [stdout]     |     ^^^ help: if this is intentional, prefix it with an underscore: `_top`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `near`
[INFO] [stdout]    --> examples/ch08/../common/transforms.rs:109:5
[INFO] [stdout]     |
[INFO] [stdout] 109 |     near: f32,
[INFO] [stdout]     |     ^^^^ help: if this is intentional, prefix it with an underscore: `_near`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `far`
[INFO] [stdout]    --> examples/ch08/../common/transforms.rs:110:5
[INFO] [stdout]     |
[INFO] [stdout] 110 |     far: f32,
[INFO] [stdout]     |     ^^^ help: if this is intentional, prefix it with an underscore: `_far`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `uvs`
[INFO] [stdout]   --> examples/ch08/../common/vertex_data.rs:96:9
[INFO] [stdout]    |
[INFO] [stdout] 96 |     let uvs = [
[INFO] [stdout]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_uvs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> examples/ch09/../common/surface_data.rs:134:9
[INFO] [stdout]     |
[INFO] [stdout] 134 |     let mut positions: Vec<[f32; 3]> = Vec::with_capacity((4 * (nx - 1) * (nz - 1)) as usize);
[INFO] [stdout]     |         ----^^^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> examples/ch09/../common/surface_data.rs:135:9
[INFO] [stdout]     |
[INFO] [stdout] 135 |     let mut normals: Vec<[f32; 3]> = Vec::with_capacity((4 * (nx - 1) * (nz - 1)) as usize);
[INFO] [stdout]     |         ----^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> examples/ch09/../common/surface_data.rs:136:9
[INFO] [stdout]     |
[INFO] [stdout] 136 |     let mut colors: Vec<[f32; 3]> = Vec::with_capacity((4 * (nx - 1) * (nz - 1)) as usize);
[INFO] [stdout]     |         ----^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cmin`
[INFO] [stdout]    --> examples/ch09/../common/surface_data.rs:131:9
[INFO] [stdout]     |
[INFO] [stdout] 131 |     let cmin = normalize_point([0.0, ymin1, 0.0], xmin, xmax, ymin, ymax, zmin, zmax, scale)[1];
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_cmin`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cmax`
[INFO] [stdout]    --> examples/ch09/../common/surface_data.rs:132:9
[INFO] [stdout]     |
[INFO] [stdout] 132 |     let cmax = normalize_point([0.0, ymax1, 0.0], xmin, xmax, ymin, ymax, zmin, zmax, scale)[1];
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_cmax`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> examples/ch09/../common/surface_data.rs:233:9
[INFO] [stdout]     |
[INFO] [stdout] 233 |     let mut uvs: Vec<[f32; 2]> = Vec::with_capacity((4 * (nu - 1) * (nv - 1)) as usize);
[INFO] [stdout]     |         ----^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> examples/ch09/../common/surface_data.rs:311:9
[INFO] [stdout]     |
[INFO] [stdout] 311 |     let mut uvs: Vec<[f32; 2]> = Vec::with_capacity((4 * (nu - 1) * (nv - 1)) as usize);
[INFO] [stdout]     |         ----^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> examples/ch09/../common/surface_data.rs:362:9
[INFO] [stdout]     |
[INFO] [stdout] 362 |     let mut mesh: Vec<[f32; 3]> = Vec::with_capacity((4 * (nx - 1) * (nz - 1)) as usize);
[INFO] [stdout]     |         ----^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `left`
[INFO] [stdout]    --> examples/ch09/../common/transforms.rs:105:5
[INFO] [stdout]     |
[INFO] [stdout] 105 |     left: f32,
[INFO] [stdout]     |     ^^^^ help: if this is intentional, prefix it with an underscore: `_left`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `right`
[INFO] [stdout]    --> examples/ch09/../common/transforms.rs:106:5
[INFO] [stdout]     |
[INFO] [stdout] 106 |     right: f32,
[INFO] [stdout]     |     ^^^^^ help: if this is intentional, prefix it with an underscore: `_right`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bottom`
[INFO] [stdout]    --> examples/ch09/../common/transforms.rs:107:5
[INFO] [stdout]     |
[INFO] [stdout] 107 |     bottom: f32,
[INFO] [stdout]     |     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_bottom`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `top`
[INFO] [stdout]    --> examples/ch09/../common/transforms.rs:108:5
[INFO] [stdout]     |
[INFO] [stdout] 108 |     top: f32,
[INFO] [stdout]     |     ^^^ help: if this is intentional, prefix it with an underscore: `_top`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `near`
[INFO] [stdout]    --> examples/ch09/../common/transforms.rs:109:5
[INFO] [stdout]     |
[INFO] [stdout] 109 |     near: f32,
[INFO] [stdout]     |     ^^^^ help: if this is intentional, prefix it with an underscore: `_near`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `far`
[INFO] [stdout]    --> examples/ch09/../common/transforms.rs:110:5
[INFO] [stdout]     |
[INFO] [stdout] 110 |     far: f32,
[INFO] [stdout]     |     ^^^ help: if this is intentional, prefix it with an underscore: `_far`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `left`
[INFO] [stdout]    --> examples/ch06/../common/transforms.rs:105:5
[INFO] [stdout]     |
[INFO] [stdout] 105 |     left: f32,
[INFO] [stdout]     |     ^^^^ help: if this is intentional, prefix it with an underscore: `_left`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `right`
[INFO] [stdout]    --> examples/ch06/../common/transforms.rs:106:5
[INFO] [stdout]     |
[INFO] [stdout] 106 |     right: f32,
[INFO] [stdout]     |     ^^^^^ help: if this is intentional, prefix it with an underscore: `_right`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bottom`
[INFO] [stdout]    --> examples/ch06/../common/transforms.rs:107:5
[INFO] [stdout]     |
[INFO] [stdout] 107 |     bottom: f32,
[INFO] [stdout]     |     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_bottom`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `top`
[INFO] [stdout]    --> examples/ch06/../common/transforms.rs:108:5
[INFO] [stdout]     |
[INFO] [stdout] 108 |     top: f32,
[INFO] [stdout]     |     ^^^ help: if this is intentional, prefix it with an underscore: `_top`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `near`
[INFO] [stdout]    --> examples/ch06/../common/transforms.rs:109:5
[INFO] [stdout]     |
[INFO] [stdout] 109 |     near: f32,
[INFO] [stdout]     |     ^^^^ help: if this is intentional, prefix it with an underscore: `_near`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `far`
[INFO] [stdout]    --> examples/ch06/../common/transforms.rs:110:5
[INFO] [stdout]     |
[INFO] [stdout] 110 |     far: f32,
[INFO] [stdout]     |     ^^^ help: if this is intentional, prefix it with an underscore: `_far`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `uvs`
[INFO] [stdout]   --> examples/ch06/../common/vertex_data.rs:96:9
[INFO] [stdout]    |
[INFO] [stdout] 96 |     let uvs = [
[INFO] [stdout]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_uvs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> examples/ch11/../common/surface_data.rs:134:9
[INFO] [stdout]     |
[INFO] [stdout] 134 |     let mut positions: Vec<[f32; 3]> = Vec::with_capacity((4 * (nx - 1) * (nz - 1)) as usize);
[INFO] [stdout]     |         ----^^^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> examples/ch11/../common/surface_data.rs:135:9
[INFO] [stdout]     |
[INFO] [stdout] 135 |     let mut normals: Vec<[f32; 3]> = Vec::with_capacity((4 * (nx - 1) * (nz - 1)) as usize);
[INFO] [stdout]     |         ----^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> examples/ch11/../common/surface_data.rs:136:9
[INFO] [stdout]     |
[INFO] [stdout] 136 |     let mut colors: Vec<[f32; 3]> = Vec::with_capacity((4 * (nx - 1) * (nz - 1)) as usize);
[INFO] [stdout]     |         ----^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cmin`
[INFO] [stdout]    --> examples/ch11/../common/surface_data.rs:131:9
[INFO] [stdout]     |
[INFO] [stdout] 131 |     let cmin = normalize_point([0.0, ymin1, 0.0], xmin, xmax, ymin, ymax, zmin, zmax, scale)[1];
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_cmin`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cmax`
[INFO] [stdout]    --> examples/ch11/../common/surface_data.rs:132:9
[INFO] [stdout]     |
[INFO] [stdout] 132 |     let cmax = normalize_point([0.0, ymax1, 0.0], xmin, xmax, ymin, ymax, zmin, zmax, scale)[1];
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_cmax`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> examples/ch11/../common/surface_data.rs:233:9
[INFO] [stdout]     |
[INFO] [stdout] 233 |     let mut uvs: Vec<[f32; 2]> = Vec::with_capacity((4 * (nu - 1) * (nv - 1)) as usize);
[INFO] [stdout]     |         ----^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> examples/ch11/../common/surface_data.rs:311:9
[INFO] [stdout]     |
[INFO] [stdout] 311 |     let mut uvs: Vec<[f32; 2]> = Vec::with_capacity((4 * (nu - 1) * (nv - 1)) as usize);
[INFO] [stdout]     |         ----^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> examples/ch11/../common/surface_data.rs:362:9
[INFO] [stdout]     |
[INFO] [stdout] 362 |     let mut mesh: Vec<[f32; 3]> = Vec::with_capacity((4 * (nx - 1) * (nz - 1)) as usize);
[INFO] [stdout]     |         ----^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `left`
[INFO] [stdout]    --> examples/ch11/../common/transforms.rs:105:5
[INFO] [stdout]     |
[INFO] [stdout] 105 |     left: f32,
[INFO] [stdout]     |     ^^^^ help: if this is intentional, prefix it with an underscore: `_left`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `right`
[INFO] [stdout]    --> examples/ch11/../common/transforms.rs:106:5
[INFO] [stdout]     |
[INFO] [stdout] 106 |     right: f32,
[INFO] [stdout]     |     ^^^^^ help: if this is intentional, prefix it with an underscore: `_right`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bottom`
[INFO] [stdout]    --> examples/ch11/../common/transforms.rs:107:5
[INFO] [stdout]     |
[INFO] [stdout] 107 |     bottom: f32,
[INFO] [stdout]     |     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_bottom`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `top`
[INFO] [stdout]    --> examples/ch11/../common/transforms.rs:108:5
[INFO] [stdout]     |
[INFO] [stdout] 108 |     top: f32,
[INFO] [stdout]     |     ^^^ help: if this is intentional, prefix it with an underscore: `_top`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `near`
[INFO] [stdout]    --> examples/ch11/../common/transforms.rs:109:5
[INFO] [stdout]     |
[INFO] [stdout] 109 |     near: f32,
[INFO] [stdout]     |     ^^^^ help: if this is intentional, prefix it with an underscore: `_near`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `far`
[INFO] [stdout]    --> examples/ch11/../common/transforms.rs:110:5
[INFO] [stdout]     |
[INFO] [stdout] 110 |     far: f32,
[INFO] [stdout]     |     ^^^ help: if this is intentional, prefix it with an underscore: `_far`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> examples/ch09/../common/surface_data.rs:134:9
[INFO] [stdout]     |
[INFO] [stdout] 134 |     let mut positions: Vec<[f32; 3]> = Vec::with_capacity((4 * (nx - 1) * (nz - 1)) as usize);
[INFO] [stdout]     |         ----^^^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> examples/ch09/../common/surface_data.rs:135:9
[INFO] [stdout]     |
[INFO] [stdout] 135 |     let mut normals: Vec<[f32; 3]> = Vec::with_capacity((4 * (nx - 1) * (nz - 1)) as usize);
[INFO] [stdout]     |         ----^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> examples/ch09/../common/surface_data.rs:136:9
[INFO] [stdout]     |
[INFO] [stdout] 136 |     let mut colors: Vec<[f32; 3]> = Vec::with_capacity((4 * (nx - 1) * (nz - 1)) as usize);
[INFO] [stdout]     |         ----^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cmin`
[INFO] [stdout]    --> examples/ch09/../common/surface_data.rs:131:9
[INFO] [stdout]     |
[INFO] [stdout] 131 |     let cmin = normalize_point([0.0, ymin1, 0.0], xmin, xmax, ymin, ymax, zmin, zmax, scale)[1];
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_cmin`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cmax`
[INFO] [stdout]    --> examples/ch09/../common/surface_data.rs:132:9
[INFO] [stdout]     |
[INFO] [stdout] 132 |     let cmax = normalize_point([0.0, ymax1, 0.0], xmin, xmax, ymin, ymax, zmin, zmax, scale)[1];
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_cmax`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> examples/ch09/../common/surface_data.rs:233:9
[INFO] [stdout]     |
[INFO] [stdout] 233 |     let mut uvs: Vec<[f32; 2]> = Vec::with_capacity((4 * (nu - 1) * (nv - 1)) as usize);
[INFO] [stdout]     |         ----^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> examples/ch09/../common/surface_data.rs:311:9
[INFO] [stdout]     |
[INFO] [stdout] 311 |     let mut uvs: Vec<[f32; 2]> = Vec::with_capacity((4 * (nu - 1) * (nv - 1)) as usize);
[INFO] [stdout]     |         ----^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> examples/ch09/../common/surface_data.rs:362:9
[INFO] [stdout]     |
[INFO] [stdout] 362 |     let mut mesh: Vec<[f32; 3]> = Vec::with_capacity((4 * (nx - 1) * (nz - 1)) as usize);
[INFO] [stdout]     |         ----^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `left`
[INFO] [stdout]    --> examples/ch09/../common/transforms.rs:105:5
[INFO] [stdout]     |
[INFO] [stdout] 105 |     left: f32,
[INFO] [stdout]     |     ^^^^ help: if this is intentional, prefix it with an underscore: `_left`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `right`
[INFO] [stdout]    --> examples/ch09/../common/transforms.rs:106:5
[INFO] [stdout]     |
[INFO] [stdout] 106 |     right: f32,
[INFO] [stdout]     |     ^^^^^ help: if this is intentional, prefix it with an underscore: `_right`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bottom`
[INFO] [stdout]    --> examples/ch09/../common/transforms.rs:107:5
[INFO] [stdout]     |
[INFO] [stdout] 107 |     bottom: f32,
[INFO] [stdout]     |     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_bottom`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `top`
[INFO] [stdout]    --> examples/ch09/../common/transforms.rs:108:5
[INFO] [stdout]     |
[INFO] [stdout] 108 |     top: f32,
[INFO] [stdout]     |     ^^^ help: if this is intentional, prefix it with an underscore: `_top`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `near`
[INFO] [stdout]    --> examples/ch09/../common/transforms.rs:109:5
[INFO] [stdout]     |
[INFO] [stdout] 109 |     near: f32,
[INFO] [stdout]     |     ^^^^ help: if this is intentional, prefix it with an underscore: `_near`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `far`
[INFO] [stdout]    --> examples/ch09/../common/transforms.rs:110:5
[INFO] [stdout]     |
[INFO] [stdout] 110 |     far: f32,
[INFO] [stdout]     |     ^^^ help: if this is intentional, prefix it with an underscore: `_far`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> examples/ch09/../common/surface_data.rs:134:9
[INFO] [stdout]     |
[INFO] [stdout] 134 |     let mut positions: Vec<[f32; 3]> = Vec::with_capacity((4 * (nx - 1) * (nz - 1)) as usize);
[INFO] [stdout]     |         ----^^^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> examples/ch09/../common/surface_data.rs:135:9
[INFO] [stdout]     |
[INFO] [stdout] 135 |     let mut normals: Vec<[f32; 3]> = Vec::with_capacity((4 * (nx - 1) * (nz - 1)) as usize);
[INFO] [stdout]     |         ----^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> examples/ch09/../common/surface_data.rs:136:9
[INFO] [stdout]     |
[INFO] [stdout] 136 |     let mut colors: Vec<[f32; 3]> = Vec::with_capacity((4 * (nx - 1) * (nz - 1)) as usize);
[INFO] [stdout]     |         ----^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cmin`
[INFO] [stdout]    --> examples/ch09/../common/surface_data.rs:131:9
[INFO] [stdout]     |
[INFO] [stdout] 131 |     let cmin = normalize_point([0.0, ymin1, 0.0], xmin, xmax, ymin, ymax, zmin, zmax, scale)[1];
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_cmin`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cmax`
[INFO] [stdout]    --> examples/ch09/../common/surface_data.rs:132:9
[INFO] [stdout]     |
[INFO] [stdout] 132 |     let cmax = normalize_point([0.0, ymax1, 0.0], xmin, xmax, ymin, ymax, zmin, zmax, scale)[1];
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_cmax`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> examples/ch09/../common/surface_data.rs:233:9
[INFO] [stdout]     |
[INFO] [stdout] 233 |     let mut uvs: Vec<[f32; 2]> = Vec::with_capacity((4 * (nu - 1) * (nv - 1)) as usize);
[INFO] [stdout]     |         ----^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> examples/ch09/../common/surface_data.rs:311:9
[INFO] [stdout]     |
[INFO] [stdout] 311 |     let mut uvs: Vec<[f32; 2]> = Vec::with_capacity((4 * (nu - 1) * (nv - 1)) as usize);
[INFO] [stdout]     |         ----^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> examples/ch09/../common/surface_data.rs:362:9
[INFO] [stdout]     |
[INFO] [stdout] 362 |     let mut mesh: Vec<[f32; 3]> = Vec::with_capacity((4 * (nx - 1) * (nz - 1)) as usize);
[INFO] [stdout]     |         ----^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `left`
[INFO] [stdout]    --> examples/ch09/../common/transforms.rs:105:5
[INFO] [stdout]     |
[INFO] [stdout] 105 |     left: f32,
[INFO] [stdout]     |     ^^^^ help: if this is intentional, prefix it with an underscore: `_left`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `right`
[INFO] [stdout]    --> examples/ch09/../common/transforms.rs:106:5
[INFO] [stdout]     |
[INFO] [stdout] 106 |     right: f32,
[INFO] [stdout]     |     ^^^^^ help: if this is intentional, prefix it with an underscore: `_right`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bottom`
[INFO] [stdout]    --> examples/ch09/../common/transforms.rs:107:5
[INFO] [stdout]     |
[INFO] [stdout] 107 |     bottom: f32,
[INFO] [stdout]     |     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_bottom`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `top`
[INFO] [stdout]    --> examples/ch09/../common/transforms.rs:108:5
[INFO] [stdout]     |
[INFO] [stdout] 108 |     top: f32,
[INFO] [stdout]     |     ^^^ help: if this is intentional, prefix it with an underscore: `_top`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `near`
[INFO] [stdout]    --> examples/ch09/../common/transforms.rs:109:5
[INFO] [stdout]     |
[INFO] [stdout] 109 |     near: f32,
[INFO] [stdout]     |     ^^^^ help: if this is intentional, prefix it with an underscore: `_near`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `far`
[INFO] [stdout]    --> examples/ch09/../common/transforms.rs:110:5
[INFO] [stdout]     |
[INFO] [stdout] 110 |     far: f32,
[INFO] [stdout]     |     ^^^ help: if this is intentional, prefix it with an underscore: `_far`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> examples/ch10/../common/surface_data.rs:134:9
[INFO] [stdout]     |
[INFO] [stdout] 134 |     let mut positions: Vec<[f32; 3]> = Vec::with_capacity((4 * (nx - 1) * (nz - 1)) as usize);
[INFO] [stdout]     |         ----^^^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> examples/ch10/../common/surface_data.rs:135:9
[INFO] [stdout]     |
[INFO] [stdout] 135 |     let mut normals: Vec<[f32; 3]> = Vec::with_capacity((4 * (nx - 1) * (nz - 1)) as usize);
[INFO] [stdout]     |         ----^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> examples/ch11/../common/surface_data.rs:134:9
[INFO] [stdout]     |
[INFO] [stdout] 134 |     let mut positions: Vec<[f32; 3]> = Vec::with_capacity((4 * (nx - 1) * (nz - 1)) as usize);
[INFO] [stdout]     |         ----^^^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> examples/ch10/../common/surface_data.rs:136:9
[INFO] [stdout]     |
[INFO] [stdout] 136 |     let mut colors: Vec<[f32; 3]> = Vec::with_capacity((4 * (nx - 1) * (nz - 1)) as usize);
[INFO] [stdout]     |         ----^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> examples/ch10/../common/surface_data.rs:134:9
[INFO] [stdout]     |
[INFO] [stdout] 134 |     let mut positions: Vec<[f32; 3]> = Vec::with_capacity((4 * (nx - 1) * (nz - 1)) as usize);
[INFO] [stdout]     |         ----^^^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> examples/ch10/../common/surface_data.rs:135:9
[INFO] [stdout]     |
[INFO] [stdout] 135 |     let mut normals: Vec<[f32; 3]> = Vec::with_capacity((4 * (nx - 1) * (nz - 1)) as usize);
[INFO] [stdout]     |         ----^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> examples/ch10/../common/surface_data.rs:136:9
[INFO] [stdout]     |
[INFO] [stdout] 136 |     let mut colors: Vec<[f32; 3]> = Vec::with_capacity((4 * (nx - 1) * (nz - 1)) as usize);
[INFO] [stdout]     |         ----^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cmin`
[INFO] [stdout]    --> examples/ch10/../common/surface_data.rs:131:9
[INFO] [stdout]     |
[INFO] [stdout] 131 |     let cmin = normalize_point([0.0, ymin1, 0.0], xmin, xmax, ymin, ymax, zmin, zmax, scale)[1];
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_cmin`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cmax`
[INFO] [stdout]    --> examples/ch10/../common/surface_data.rs:132:9
[INFO] [stdout]     |
[INFO] [stdout] 132 |     let cmax = normalize_point([0.0, ymax1, 0.0], xmin, xmax, ymin, ymax, zmin, zmax, scale)[1];
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_cmax`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> examples/ch11/../common/surface_data.rs:135:9
[INFO] [stdout]     |
[INFO] [stdout] 135 |     let mut normals: Vec<[f32; 3]> = Vec::with_capacity((4 * (nx - 1) * (nz - 1)) as usize);
[INFO] [stdout]     |         ----^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> examples/ch11/../common/surface_data.rs:136:9
[INFO] [stdout]     |
[INFO] [stdout] 136 |     let mut colors: Vec<[f32; 3]> = Vec::with_capacity((4 * (nx - 1) * (nz - 1)) as usize);
[INFO] [stdout]     |         ----^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cmin`
[INFO] [stdout]    --> examples/ch10/../common/surface_data.rs:131:9
[INFO] [stdout]     |
[INFO] [stdout] 131 |     let cmin = normalize_point([0.0, ymin1, 0.0], xmin, xmax, ymin, ymax, zmin, zmax, scale)[1];
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_cmin`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cmax`
[INFO] [stdout]    --> examples/ch10/../common/surface_data.rs:132:9
[INFO] [stdout]     |
[INFO] [stdout] 132 |     let cmax = normalize_point([0.0, ymax1, 0.0], xmin, xmax, ymin, ymax, zmin, zmax, scale)[1];
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_cmax`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> examples/ch10/../common/surface_data.rs:233:9
[INFO] [stdout]     |
[INFO] [stdout] 233 |     let mut uvs: Vec<[f32; 2]> = Vec::with_capacity((4 * (nu - 1) * (nv - 1)) as usize);
[INFO] [stdout]     |         ----^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> examples/ch10/../common/surface_data.rs:311:9
[INFO] [stdout]     |
[INFO] [stdout] 311 |     let mut uvs: Vec<[f32; 2]> = Vec::with_capacity((4 * (nu - 1) * (nv - 1)) as usize);
[INFO] [stdout]     |         ----^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> examples/ch10/../common/surface_data.rs:362:9
[INFO] [stdout]     |
[INFO] [stdout] 362 |     let mut mesh: Vec<[f32; 3]> = Vec::with_capacity((4 * (nx - 1) * (nz - 1)) as usize);
[INFO] [stdout]     |         ----^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> examples/ch10/../common/surface_data.rs:233:9
[INFO] [stdout]     |
[INFO] [stdout] 233 |     let mut uvs: Vec<[f32; 2]> = Vec::with_capacity((4 * (nu - 1) * (nv - 1)) as usize);
[INFO] [stdout]     |         ----^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cmin`
[INFO] [stdout]    --> examples/ch11/../common/surface_data.rs:131:9
[INFO] [stdout]     |
[INFO] [stdout] 131 |     let cmin = normalize_point([0.0, ymin1, 0.0], xmin, xmax, ymin, ymax, zmin, zmax, scale)[1];
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_cmin`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> examples/ch10/../common/surface_data.rs:311:9
[INFO] [stdout]     |
[INFO] [stdout] 311 |     let mut uvs: Vec<[f32; 2]> = Vec::with_capacity((4 * (nu - 1) * (nv - 1)) as usize);
[INFO] [stdout]     |         ----^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cmax`
[INFO] [stdout]    --> examples/ch11/../common/surface_data.rs:132:9
[INFO] [stdout]     |
[INFO] [stdout] 132 |     let cmax = normalize_point([0.0, ymax1, 0.0], xmin, xmax, ymin, ymax, zmin, zmax, scale)[1];
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_cmax`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> examples/ch10/../common/surface_data.rs:362:9
[INFO] [stdout]     |
[INFO] [stdout] 362 |     let mut mesh: Vec<[f32; 3]> = Vec::with_capacity((4 * (nx - 1) * (nz - 1)) as usize);
[INFO] [stdout]     |         ----^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> examples/ch11/../common/surface_data.rs:233:9
[INFO] [stdout]     |
[INFO] [stdout] 233 |     let mut uvs: Vec<[f32; 2]> = Vec::with_capacity((4 * (nu - 1) * (nv - 1)) as usize);
[INFO] [stdout]     |         ----^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> examples/ch11/../common/surface_data.rs:311:9
[INFO] [stdout]     |
[INFO] [stdout] 311 |     let mut uvs: Vec<[f32; 2]> = Vec::with_capacity((4 * (nu - 1) * (nv - 1)) as usize);
[INFO] [stdout]     |         ----^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> examples/ch11/../common/surface_data.rs:362:9
[INFO] [stdout]     |
[INFO] [stdout] 362 |     let mut mesh: Vec<[f32; 3]> = Vec::with_capacity((4 * (nx - 1) * (nz - 1)) as usize);
[INFO] [stdout]     |         ----^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `left`
[INFO] [stdout]    --> examples/ch10/../common/transforms.rs:105:5
[INFO] [stdout]     |
[INFO] [stdout] 105 |     left: f32,
[INFO] [stdout]     |     ^^^^ help: if this is intentional, prefix it with an underscore: `_left`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `right`
[INFO] [stdout]    --> examples/ch10/../common/transforms.rs:106:5
[INFO] [stdout]     |
[INFO] [stdout] 106 |     right: f32,
[INFO] [stdout]     |     ^^^^^ help: if this is intentional, prefix it with an underscore: `_right`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bottom`
[INFO] [stdout]    --> examples/ch10/../common/transforms.rs:107:5
[INFO] [stdout]     |
[INFO] [stdout] 107 |     bottom: f32,
[INFO] [stdout]     |     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_bottom`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `top`
[INFO] [stdout]    --> examples/ch10/../common/transforms.rs:108:5
[INFO] [stdout]     |
[INFO] [stdout] 108 |     top: f32,
[INFO] [stdout]     |     ^^^ help: if this is intentional, prefix it with an underscore: `_top`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `near`
[INFO] [stdout]    --> examples/ch10/../common/transforms.rs:109:5
[INFO] [stdout]     |
[INFO] [stdout] 109 |     near: f32,
[INFO] [stdout]     |     ^^^^ help: if this is intentional, prefix it with an underscore: `_near`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `far`
[INFO] [stdout]    --> examples/ch10/../common/transforms.rs:110:5
[INFO] [stdout]     |
[INFO] [stdout] 110 |     far: f32,
[INFO] [stdout]     |     ^^^ help: if this is intentional, prefix it with an underscore: `_far`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `left`
[INFO] [stdout]    --> examples/ch10/../common/transforms.rs:105:5
[INFO] [stdout]     |
[INFO] [stdout] 105 |     left: f32,
[INFO] [stdout]     |     ^^^^ help: if this is intentional, prefix it with an underscore: `_left`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `right`
[INFO] [stdout]    --> examples/ch10/../common/transforms.rs:106:5
[INFO] [stdout]     |
[INFO] [stdout] 106 |     right: f32,
[INFO] [stdout]     |     ^^^^^ help: if this is intentional, prefix it with an underscore: `_right`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bottom`
[INFO] [stdout]    --> examples/ch10/../common/transforms.rs:107:5
[INFO] [stdout]     |
[INFO] [stdout] 107 |     bottom: f32,
[INFO] [stdout]     |     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_bottom`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `top`
[INFO] [stdout]    --> examples/ch10/../common/transforms.rs:108:5
[INFO] [stdout]     |
[INFO] [stdout] 108 |     top: f32,
[INFO] [stdout]     |     ^^^ help: if this is intentional, prefix it with an underscore: `_top`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `near`
[INFO] [stdout]    --> examples/ch10/../common/transforms.rs:109:5
[INFO] [stdout]     |
[INFO] [stdout] 109 |     near: f32,
[INFO] [stdout]     |     ^^^^ help: if this is intentional, prefix it with an underscore: `_near`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `far`
[INFO] [stdout]    --> examples/ch10/../common/transforms.rs:110:5
[INFO] [stdout]     |
[INFO] [stdout] 110 |     far: f32,
[INFO] [stdout]     |     ^^^ help: if this is intentional, prefix it with an underscore: `_far`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `left`
[INFO] [stdout]    --> examples/ch11/../common/transforms.rs:105:5
[INFO] [stdout]     |
[INFO] [stdout] 105 |     left: f32,
[INFO] [stdout]     |     ^^^^ help: if this is intentional, prefix it with an underscore: `_left`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `right`
[INFO] [stdout]    --> examples/ch11/../common/transforms.rs:106:5
[INFO] [stdout]     |
[INFO] [stdout] 106 |     right: f32,
[INFO] [stdout]     |     ^^^^^ help: if this is intentional, prefix it with an underscore: `_right`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bottom`
[INFO] [stdout]    --> examples/ch11/../common/transforms.rs:107:5
[INFO] [stdout]     |
[INFO] [stdout] 107 |     bottom: f32,
[INFO] [stdout]     |     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_bottom`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `top`
[INFO] [stdout]    --> examples/ch11/../common/transforms.rs:108:5
[INFO] [stdout]     |
[INFO] [stdout] 108 |     top: f32,
[INFO] [stdout]     |     ^^^ help: if this is intentional, prefix it with an underscore: `_top`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `near`
[INFO] [stdout]    --> examples/ch11/../common/transforms.rs:109:5
[INFO] [stdout]     |
[INFO] [stdout] 109 |     near: f32,
[INFO] [stdout]     |     ^^^^ help: if this is intentional, prefix it with an underscore: `_near`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `far`
[INFO] [stdout]    --> examples/ch11/../common/transforms.rs:110:5
[INFO] [stdout]     |
[INFO] [stdout] 110 |     far: f32,
[INFO] [stdout]     |     ^^^ help: if this is intentional, prefix it with an underscore: `_far`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> examples/ch11/../common/surface_data.rs:134:9
[INFO] [stdout]     |
[INFO] [stdout] 134 |     let mut positions: Vec<[f32; 3]> = Vec::with_capacity((4 * (nx - 1) * (nz - 1)) as usize);
[INFO] [stdout]     |         ----^^^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> examples/ch11/../common/surface_data.rs:135:9
[INFO] [stdout]     |
[INFO] [stdout] 135 |     let mut normals: Vec<[f32; 3]> = Vec::with_capacity((4 * (nx - 1) * (nz - 1)) as usize);
[INFO] [stdout]     |         ----^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> examples/ch11/../common/surface_data.rs:136:9
[INFO] [stdout]     |
[INFO] [stdout] 136 |     let mut colors: Vec<[f32; 3]> = Vec::with_capacity((4 * (nx - 1) * (nz - 1)) as usize);
[INFO] [stdout]     |         ----^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cmin`
[INFO] [stdout]    --> examples/ch11/../common/surface_data.rs:131:9
[INFO] [stdout]     |
[INFO] [stdout] 131 |     let cmin = normalize_point([0.0, ymin1, 0.0], xmin, xmax, ymin, ymax, zmin, zmax, scale)[1];
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_cmin`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cmax`
[INFO] [stdout]    --> examples/ch11/../common/surface_data.rs:132:9
[INFO] [stdout]     |
[INFO] [stdout] 132 |     let cmax = normalize_point([0.0, ymax1, 0.0], xmin, xmax, ymin, ymax, zmin, zmax, scale)[1];
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_cmax`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> examples/ch11/../common/surface_data.rs:233:9
[INFO] [stdout]     |
[INFO] [stdout] 233 |     let mut uvs: Vec<[f32; 2]> = Vec::with_capacity((4 * (nu - 1) * (nv - 1)) as usize);
[INFO] [stdout]     |         ----^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> examples/ch11/../common/surface_data.rs:311:9
[INFO] [stdout]     |
[INFO] [stdout] 311 |     let mut uvs: Vec<[f32; 2]> = Vec::with_capacity((4 * (nu - 1) * (nv - 1)) as usize);
[INFO] [stdout]     |         ----^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> examples/ch11/../common/surface_data.rs:362:9
[INFO] [stdout]     |
[INFO] [stdout] 362 |     let mut mesh: Vec<[f32; 3]> = Vec::with_capacity((4 * (nx - 1) * (nz - 1)) as usize);
[INFO] [stdout]     |         ----^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `left`
[INFO] [stdout]    --> examples/ch11/../common/transforms.rs:105:5
[INFO] [stdout]     |
[INFO] [stdout] 105 |     left: f32,
[INFO] [stdout]     |     ^^^^ help: if this is intentional, prefix it with an underscore: `_left`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `right`
[INFO] [stdout]    --> examples/ch11/../common/transforms.rs:106:5
[INFO] [stdout]     |
[INFO] [stdout] 106 |     right: f32,
[INFO] [stdout]     |     ^^^^^ help: if this is intentional, prefix it with an underscore: `_right`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bottom`
[INFO] [stdout]    --> examples/ch11/../common/transforms.rs:107:5
[INFO] [stdout]     |
[INFO] [stdout] 107 |     bottom: f32,
[INFO] [stdout]     |     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_bottom`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `top`
[INFO] [stdout]    --> examples/ch11/../common/transforms.rs:108:5
[INFO] [stdout]     |
[INFO] [stdout] 108 |     top: f32,
[INFO] [stdout]     |     ^^^ help: if this is intentional, prefix it with an underscore: `_top`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `near`
[INFO] [stdout]    --> examples/ch11/../common/transforms.rs:109:5
[INFO] [stdout]     |
[INFO] [stdout] 109 |     near: f32,
[INFO] [stdout]     |     ^^^^ help: if this is intentional, prefix it with an underscore: `_near`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `far`
[INFO] [stdout]    --> examples/ch11/../common/transforms.rs:110:5
[INFO] [stdout]     |
[INFO] [stdout] 110 |     far: f32,
[INFO] [stdout]     |     ^^^ help: if this is intentional, prefix it with an underscore: `_far`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> examples/ch11/../common/surface_data.rs:134:9
[INFO] [stdout]     |
[INFO] [stdout] 134 |     let mut positions: Vec<[f32; 3]> = Vec::with_capacity((4 * (nx - 1) * (nz - 1)) as usize);
[INFO] [stdout]     |         ----^^^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> examples/ch11/../common/surface_data.rs:135:9
[INFO] [stdout]     |
[INFO] [stdout] 135 |     let mut normals: Vec<[f32; 3]> = Vec::with_capacity((4 * (nx - 1) * (nz - 1)) as usize);
[INFO] [stdout]     |         ----^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> examples/ch11/../common/surface_data.rs:136:9
[INFO] [stdout]     |
[INFO] [stdout] 136 |     let mut colors: Vec<[f32; 3]> = Vec::with_capacity((4 * (nx - 1) * (nz - 1)) as usize);
[INFO] [stdout]     |         ----^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cmin`
[INFO] [stdout]    --> examples/ch11/../common/surface_data.rs:131:9
[INFO] [stdout]     |
[INFO] [stdout] 131 |     let cmin = normalize_point([0.0, ymin1, 0.0], xmin, xmax, ymin, ymax, zmin, zmax, scale)[1];
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_cmin`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cmax`
[INFO] [stdout]    --> examples/ch11/../common/surface_data.rs:132:9
[INFO] [stdout]     |
[INFO] [stdout] 132 |     let cmax = normalize_point([0.0, ymax1, 0.0], xmin, xmax, ymin, ymax, zmin, zmax, scale)[1];
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_cmax`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> examples/ch11/../common/surface_data.rs:233:9
[INFO] [stdout]     |
[INFO] [stdout] 233 |     let mut uvs: Vec<[f32; 2]> = Vec::with_capacity((4 * (nu - 1) * (nv - 1)) as usize);
[INFO] [stdout]     |         ----^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> examples/ch11/../common/surface_data.rs:311:9
[INFO] [stdout]     |
[INFO] [stdout] 311 |     let mut uvs: Vec<[f32; 2]> = Vec::with_capacity((4 * (nu - 1) * (nv - 1)) as usize);
[INFO] [stdout]     |         ----^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> examples/ch11/../common/surface_data.rs:362:9
[INFO] [stdout]     |
[INFO] [stdout] 362 |     let mut mesh: Vec<[f32; 3]> = Vec::with_capacity((4 * (nx - 1) * (nz - 1)) as usize);
[INFO] [stdout]     |         ----^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `left`
[INFO] [stdout]    --> examples/ch11/../common/transforms.rs:105:5
[INFO] [stdout]     |
[INFO] [stdout] 105 |     left: f32,
[INFO] [stdout]     |     ^^^^ help: if this is intentional, prefix it with an underscore: `_left`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `right`
[INFO] [stdout]    --> examples/ch11/../common/transforms.rs:106:5
[INFO] [stdout]     |
[INFO] [stdout] 106 |     right: f32,
[INFO] [stdout]     |     ^^^^^ help: if this is intentional, prefix it with an underscore: `_right`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bottom`
[INFO] [stdout]    --> examples/ch11/../common/transforms.rs:107:5
[INFO] [stdout]     |
[INFO] [stdout] 107 |     bottom: f32,
[INFO] [stdout]     |     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_bottom`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `top`
[INFO] [stdout]    --> examples/ch11/../common/transforms.rs:108:5
[INFO] [stdout]     |
[INFO] [stdout] 108 |     top: f32,
[INFO] [stdout]     |     ^^^ help: if this is intentional, prefix it with an underscore: `_top`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `near`
[INFO] [stdout]    --> examples/ch11/../common/transforms.rs:109:5
[INFO] [stdout]     |
[INFO] [stdout] 109 |     near: f32,
[INFO] [stdout]     |     ^^^^ help: if this is intentional, prefix it with an underscore: `_near`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `far`
[INFO] [stdout]    --> examples/ch11/../common/transforms.rs:110:5
[INFO] [stdout]     |
[INFO] [stdout] 110 |     far: f32,
[INFO] [stdout]     |     ^^^ help: if this is intentional, prefix it with an underscore: `_far`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `left`
[INFO] [stdout]    --> examples/ch12/../common/transforms.rs:105:5
[INFO] [stdout]     |
[INFO] [stdout] 105 |     left: f32,
[INFO] [stdout]     |     ^^^^ help: if this is intentional, prefix it with an underscore: `_left`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `right`
[INFO] [stdout]    --> examples/ch12/../common/transforms.rs:106:5
[INFO] [stdout]     |
[INFO] [stdout] 106 |     right: f32,
[INFO] [stdout]     |     ^^^^^ help: if this is intentional, prefix it with an underscore: `_right`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bottom`
[INFO] [stdout]    --> examples/ch12/../common/transforms.rs:107:5
[INFO] [stdout]     |
[INFO] [stdout] 107 |     bottom: f32,
[INFO] [stdout]     |     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_bottom`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `top`
[INFO] [stdout]    --> examples/ch12/../common/transforms.rs:108:5
[INFO] [stdout]     |
[INFO] [stdout] 108 |     top: f32,
[INFO] [stdout]     |     ^^^ help: if this is intentional, prefix it with an underscore: `_top`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `near`
[INFO] [stdout]    --> examples/ch12/../common/transforms.rs:109:5
[INFO] [stdout]     |
[INFO] [stdout] 109 |     near: f32,
[INFO] [stdout]     |     ^^^^ help: if this is intentional, prefix it with an underscore: `_near`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `far`
[INFO] [stdout]    --> examples/ch12/../common/transforms.rs:110:5
[INFO] [stdout]     |
[INFO] [stdout] 110 |     far: f32,
[INFO] [stdout]     |     ^^^ help: if this is intentional, prefix it with an underscore: `_far`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `uvs`
[INFO] [stdout]   --> examples/ch12/../common/vertex_data.rs:96:9
[INFO] [stdout]    |
[INFO] [stdout] 96 |     let uvs = [
[INFO] [stdout]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_uvs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `left`
[INFO] [stdout]    --> examples/ch06/../common/transforms.rs:105:5
[INFO] [stdout]     |
[INFO] [stdout] 105 |     left: f32,
[INFO] [stdout]     |     ^^^^ help: if this is intentional, prefix it with an underscore: `_left`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `right`
[INFO] [stdout]    --> examples/ch06/../common/transforms.rs:106:5
[INFO] [stdout]     |
[INFO] [stdout] 106 |     right: f32,
[INFO] [stdout]     |     ^^^^^ help: if this is intentional, prefix it with an underscore: `_right`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bottom`
[INFO] [stdout]    --> examples/ch06/../common/transforms.rs:107:5
[INFO] [stdout]     |
[INFO] [stdout] 107 |     bottom: f32,
[INFO] [stdout]     |     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_bottom`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `top`
[INFO] [stdout]    --> examples/ch06/../common/transforms.rs:108:5
[INFO] [stdout]     |
[INFO] [stdout] 108 |     top: f32,
[INFO] [stdout]     |     ^^^ help: if this is intentional, prefix it with an underscore: `_top`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `near`
[INFO] [stdout]    --> examples/ch06/../common/transforms.rs:109:5
[INFO] [stdout]     |
[INFO] [stdout] 109 |     near: f32,
[INFO] [stdout]     |     ^^^^ help: if this is intentional, prefix it with an underscore: `_near`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `far`
[INFO] [stdout]    --> examples/ch06/../common/transforms.rs:110:5
[INFO] [stdout]     |
[INFO] [stdout] 110 |     far: f32,
[INFO] [stdout]     |     ^^^ help: if this is intentional, prefix it with an underscore: `_far`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `uvs`
[INFO] [stdout]   --> examples/ch06/../common/vertex_data.rs:96:9
[INFO] [stdout]    |
[INFO] [stdout] 96 |     let uvs = [
[INFO] [stdout]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_uvs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `left`
[INFO] [stdout]    --> examples/ch14/../common/transforms.rs:105:5
[INFO] [stdout]     |
[INFO] [stdout] 105 |     left: f32,
[INFO] [stdout]     |     ^^^^ help: if this is intentional, prefix it with an underscore: `_left`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `right`
[INFO] [stdout]    --> examples/ch14/../common/transforms.rs:106:5
[INFO] [stdout]     |
[INFO] [stdout] 106 |     right: f32,
[INFO] [stdout]     |     ^^^^^ help: if this is intentional, prefix it with an underscore: `_right`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bottom`
[INFO] [stdout]    --> examples/ch14/../common/transforms.rs:107:5
[INFO] [stdout]     |
[INFO] [stdout] 107 |     bottom: f32,
[INFO] [stdout]     |     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_bottom`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `top`
[INFO] [stdout]    --> examples/ch14/../common/transforms.rs:108:5
[INFO] [stdout]     |
[INFO] [stdout] 108 |     top: f32,
[INFO] [stdout]     |     ^^^ help: if this is intentional, prefix it with an underscore: `_top`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `near`
[INFO] [stdout]    --> examples/ch14/../common/transforms.rs:109:5
[INFO] [stdout]     |
[INFO] [stdout] 109 |     near: f32,
[INFO] [stdout]     |     ^^^^ help: if this is intentional, prefix it with an underscore: `_near`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `far`
[INFO] [stdout]    --> examples/ch14/../common/transforms.rs:110:5
[INFO] [stdout]     |
[INFO] [stdout] 110 |     far: f32,
[INFO] [stdout]     |     ^^^ help: if this is intentional, prefix it with an underscore: `_far`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> examples/ch12/../common/surface_data.rs:134:9
[INFO] [stdout]     |
[INFO] [stdout] 134 |     let mut positions: Vec<[f32; 3]> = Vec::with_capacity((4 * (nx - 1) * (nz - 1)) as usize);
[INFO] [stdout]     |         ----^^^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> examples/ch12/../common/surface_data.rs:135:9
[INFO] [stdout]     |
[INFO] [stdout] 135 |     let mut normals: Vec<[f32; 3]> = Vec::with_capacity((4 * (nx - 1) * (nz - 1)) as usize);
[INFO] [stdout]     |         ----^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> examples/ch12/../common/surface_data.rs:136:9
[INFO] [stdout]     |
[INFO] [stdout] 136 |     let mut colors: Vec<[f32; 3]> = Vec::with_capacity((4 * (nx - 1) * (nz - 1)) as usize);
[INFO] [stdout]     |         ----^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cmin`
[INFO] [stdout]    --> examples/ch12/../common/surface_data.rs:131:9
[INFO] [stdout]     |
[INFO] [stdout] 131 |     let cmin = normalize_point([0.0, ymin1, 0.0], xmin, xmax, ymin, ymax, zmin, zmax, scale)[1];
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_cmin`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cmax`
[INFO] [stdout]    --> examples/ch12/../common/surface_data.rs:132:9
[INFO] [stdout]     |
[INFO] [stdout] 132 |     let cmax = normalize_point([0.0, ymax1, 0.0], xmin, xmax, ymin, ymax, zmin, zmax, scale)[1];
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_cmax`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> examples/ch12/../common/surface_data.rs:233:9
[INFO] [stdout]     |
[INFO] [stdout] 233 |     let mut uvs: Vec<[f32; 2]> = Vec::with_capacity((4 * (nu - 1) * (nv - 1)) as usize);
[INFO] [stdout]     |         ----^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> examples/ch12/../common/surface_data.rs:311:9
[INFO] [stdout]     |
[INFO] [stdout] 311 |     let mut uvs: Vec<[f32; 2]> = Vec::with_capacity((4 * (nu - 1) * (nv - 1)) as usize);
[INFO] [stdout]     |         ----^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> examples/ch12/../common/surface_data.rs:362:9
[INFO] [stdout]     |
[INFO] [stdout] 362 |     let mut mesh: Vec<[f32; 3]> = Vec::with_capacity((4 * (nx - 1) * (nz - 1)) as usize);
[INFO] [stdout]     |         ----^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `left`
[INFO] [stdout]    --> examples/ch12/../common/transforms.rs:105:5
[INFO] [stdout]     |
[INFO] [stdout] 105 |     left: f32,
[INFO] [stdout]     |     ^^^^ help: if this is intentional, prefix it with an underscore: `_left`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `right`
[INFO] [stdout]    --> examples/ch12/../common/transforms.rs:106:5
[INFO] [stdout]     |
[INFO] [stdout] 106 |     right: f32,
[INFO] [stdout]     |     ^^^^^ help: if this is intentional, prefix it with an underscore: `_right`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bottom`
[INFO] [stdout]    --> examples/ch12/../common/transforms.rs:107:5
[INFO] [stdout]     |
[INFO] [stdout] 107 |     bottom: f32,
[INFO] [stdout]     |     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_bottom`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `top`
[INFO] [stdout]    --> examples/ch12/../common/transforms.rs:108:5
[INFO] [stdout]     |
[INFO] [stdout] 108 |     top: f32,
[INFO] [stdout]     |     ^^^ help: if this is intentional, prefix it with an underscore: `_top`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `near`
[INFO] [stdout]    --> examples/ch12/../common/transforms.rs:109:5
[INFO] [stdout]     |
[INFO] [stdout] 109 |     near: f32,
[INFO] [stdout]     |     ^^^^ help: if this is intentional, prefix it with an underscore: `_near`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `far`
[INFO] [stdout]    --> examples/ch12/../common/transforms.rs:110:5
[INFO] [stdout]     |
[INFO] [stdout] 110 |     far: f32,
[INFO] [stdout]     |     ^^^ help: if this is intentional, prefix it with an underscore: `_far`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `uvs`
[INFO] [stdout]   --> examples/ch12/../common/vertex_data.rs:96:9
[INFO] [stdout]    |
[INFO] [stdout] 96 |     let uvs = [
[INFO] [stdout]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_uvs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 56.24s
[INFO] running `Command { std: "docker" "inspect" "feb2dae9012bf27d3d80f31a37ad60082fa9e79c2559d6912725bcb694fba9bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "feb2dae9012bf27d3d80f31a37ad60082fa9e79c2559d6912725bcb694fba9bc", kill_on_drop: false }`
[INFO] [stdout] feb2dae9012bf27d3d80f31a37ad60082fa9e79c2559d6912725bcb694fba9bc
