[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 eca445e5ae4a6679cc27d3a09106ce245e13a5a6 for pr-162478
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fffabiosales%2Fwgpu_book" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-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-6-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/ffabiosales/wgpu_book on toolchain eca445e5ae4a6679cc27d3a09106ce245e13a5a6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+eca445e5ae4a6679cc27d3a09106ce245e13a5a6" "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" "+eca445e5ae4a6679cc27d3a09106ce245e13a5a6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: binary `wgpu_book` should have a kebab-case name
[INFO] [stderr]     |
[INFO] [stderr]   1 | /workspace/builds/worker-6-tc1/source/target/.../wgpu_book
[INFO] [stderr]     |                                                  ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `cargo::non_kebab_case_bins` is set to `warn` by default
[INFO] [stderr] help: to change the binary name to `wgpu-book`, convert `package.name`
[INFO] [stderr]    --> Cargo.toml:284:8
[INFO] [stderr]     |
[INFO] [stderr] 284 - name = "wgpu_book"
[INFO] [stderr] 284 + name = "wgpu-book"
[INFO] [stderr]     |
[INFO] [stderr] help: to change the binary name to `wgpu-book`, specify `bin.name`
[INFO] [stderr]    --> Cargo.toml:286:19
[INFO] [stderr]     |
[INFO] [stderr] 286 ~ version = "0.1.0"
[INFO] [stderr] 287 + [[bin]]
[INFO] [stderr] 288 + name = "wgpu-book"
[INFO] [stderr] 289 + path = "src/main.rs"
[INFO] [stderr]     |
[INFO] [stderr] warning: `wgpu_book` (manifest) generated 1 warning
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded mio-misc v1.2.2
[INFO] [stderr]   Downloaded d3d12 v0.4.1
[INFO] [stderr]   Downloaded pollster v0.2.5
[INFO] [stderr]   Downloaded external-memory v0.0.1
[INFO] [stderr]   Downloaded inplace_it v0.3.6
[INFO] [stderr]   Downloaded wgpu-types v0.11.0
[INFO] [stderr]   Downloaded wgpu-hal v0.11.5
[INFO] [stderr]   Downloaded cgmath v0.18.0
[INFO] [stderr]   Downloaded gfx-hal v0.9.0
[INFO] [stderr]   Downloaded wgpu v0.11.1
[INFO] [stderr]   Downloaded wgpu-core v0.11.3
[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-6-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:8683fc1fc2eb5c9ac98e0d076ab094b2ffac7f99da555d2b6a2e27f346de2ec7" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 75c45458c49c94b32f0f4f0c9e8b30cabb8f985f5e68b3e7700f36647cbe4087
[INFO] running `Command { std: "docker" "start" "75c45458c49c94b32f0f4f0c9e8b30cabb8f985f5e68b3e7700f36647cbe4087", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "75c45458c49c94b32f0f4f0c9e8b30cabb8f985f5e68b3e7700f36647cbe4087", 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" "75c45458c49c94b32f0f4f0c9e8b30cabb8f985f5e68b3e7700f36647cbe4087" "/opt/rustwide/cargo-home/bin/cargo" "+eca445e5ae4a6679cc27d3a09106ce245e13a5a6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "75c45458c49c94b32f0f4f0c9e8b30cabb8f985f5e68b3e7700f36647cbe4087", 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" "75c45458c49c94b32f0f4f0c9e8b30cabb8f985f5e68b3e7700f36647cbe4087" "/opt/rustwide/cargo-home/bin/cargo" "+eca445e5ae4a6679cc27d3a09106ce245e13a5a6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] warning: binary `wgpu_book` should have a kebab-case name
[INFO] [stderr]     |
[INFO] [stderr]   1 | /opt/rustwide/target/.../wgpu_book
[INFO] [stderr]     |                          ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `cargo::non_kebab_case_bins` is set to `warn` by default
[INFO] [stderr] help: to change the binary name to `wgpu-book`, convert `package.name`
[INFO] [stderr]    --> Cargo.toml:284:8
[INFO] [stderr]     |
[INFO] [stderr] 284 - name = "wgpu_book"
[INFO] [stderr] 284 + name = "wgpu-book"
[INFO] [stderr]     |
[INFO] [stderr] help: to change the binary name to `wgpu-book`, specify `bin.name`
[INFO] [stderr]    --> Cargo.toml:286:19
[INFO] [stderr]     |
[INFO] [stderr] 286 ~ version = "0.1.0"
[INFO] [stderr] 287 + [[bin]]
[INFO] [stderr] 288 + name = "wgpu-book"
[INFO] [stderr] 289 + path = "src/main.rs"
[INFO] [stderr]     |
[INFO] [stderr] warning: `wgpu_book` (manifest) generated 1 warning
[INFO] [stderr]    Compiling syn v2.0.104
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[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/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/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: `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: `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: `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: `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/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: `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/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/../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: 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: 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: 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: 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/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/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: 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/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/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: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/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: 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: 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: `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: `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: `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: `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: 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/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: `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: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/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/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: `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/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: 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/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: 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 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/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: 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: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/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/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/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/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: `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: `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/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: `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: 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/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: 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: 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: 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: `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: `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/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/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: `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: `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/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/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: 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: `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: 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: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: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: 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: `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/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/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: 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: 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: 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/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/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/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/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: 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: 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: `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/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/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: 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: 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/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/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: `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: `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: `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/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/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] [stderr] warning: unused dependency `anyhow`
[INFO] [stderr]  --> Cargo.toml:2:1
[INFO] [stderr]   |
[INFO] [stderr] 2 | anyhow = "1.0"
[INFO] [stderr]   | ^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `cargo::unused_dependencies` is set to `warn` by default
[INFO] [stderr] help: consider removing the dependency on `anyhow`
[INFO] [stderr] help: to still use for development builds, move to `dev-dependencies`
[INFO] [stderr] warning: unused dependency `cgmath`
[INFO] [stderr]  --> Cargo.toml:3:1
[INFO] [stderr]   |
[INFO] [stderr] 3 | cgmath = "0.18"
[INFO] [stderr]   | ^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr] help: consider removing the dependency on `cgmath`
[INFO] [stderr] help: to still use for development builds, move to `dev-dependencies`
[INFO] [stderr] warning: unused dependency `env_logger`
[INFO] [stderr]  --> Cargo.toml:4:1
[INFO] [stderr]   |
[INFO] [stderr] 4 | env_logger = "0.9"
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr] help: consider removing the dependency on `env_logger`
[INFO] [stderr] help: to still use for development builds, move to `dev-dependencies`
[INFO] [stderr] warning: unused dependency `futures`
[INFO] [stderr]  --> Cargo.toml:5:1
[INFO] [stderr]   |
[INFO] [stderr] 5 | futures = "0.3"
[INFO] [stderr]   | ^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr] help: consider removing the dependency on `futures`
[INFO] [stderr] warning: unused dependency `gfx-hal`
[INFO] [stderr]  --> Cargo.toml:6:1
[INFO] [stderr]   |
[INFO] [stderr] 6 | gfx-hal = "0.9"
[INFO] [stderr]   | ^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr] help: consider removing the dependency on `gfx-hal`
[INFO] [stderr] warning: unused dependency `image`
[INFO] [stderr]  --> Cargo.toml:7:1
[INFO] [stderr]   |
[INFO] [stderr] 7 | image = "0.23"
[INFO] [stderr]   | ^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr] help: consider removing the dependency on `image`
[INFO] [stderr] help: to still use for development builds, move to `dev-dependencies`
[INFO] [stderr] warning: unused dependency `pollster`
[INFO] [stderr]  --> Cargo.toml:9:1
[INFO] [stderr]   |
[INFO] [stderr] 9 | pollster = "0.2"
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr] help: consider removing the dependency on `pollster`
[INFO] [stderr] help: to still use for development builds, move to `dev-dependencies`
[INFO] [stderr] warning: unused dependency `rand`
[INFO] [stderr]   --> Cargo.toml:10:1
[INFO] [stderr]    |
[INFO] [stderr] 10 | rand = "0.8"
[INFO] [stderr]    | ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr] help: consider removing the dependency on `rand`
[INFO] [stderr] help: to still use for development builds, move to `dev-dependencies`
[INFO] [stderr] warning: unused dependency `wgpu`
[INFO] [stderr]   --> Cargo.toml:11:1
[INFO] [stderr]    |
[INFO] [stderr] 11 | wgpu = "0.11"
[INFO] [stderr]    | ^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr] help: consider removing the dependency on `wgpu`
[INFO] [stderr] help: to still use for development builds, move to `dev-dependencies`
[INFO] [stderr] warning: unused dependency `winit`
[INFO] [stderr]   --> Cargo.toml:12:1
[INFO] [stderr]    |
[INFO] [stderr] 12 | winit = "0.25"
[INFO] [stderr]    | ^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr] help: consider removing the dependency on `winit`
[INFO] [stderr] help: to still use for development builds, move to `dev-dependencies`
[INFO] [stderr] warning: `wgpu_book` (manifest) generated 10 warnings
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 55.63s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: wgpu-core v0.11.3
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 2`
[INFO] running `Command { std: "docker" "inspect" "75c45458c49c94b32f0f4f0c9e8b30cabb8f985f5e68b3e7700f36647cbe4087", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "75c45458c49c94b32f0f4f0c9e8b30cabb8f985f5e68b3e7700f36647cbe4087", kill_on_drop: false }`
[INFO] [stdout] 75c45458c49c94b32f0f4f0c9e8b30cabb8f985f5e68b3e7700f36647cbe4087
