Rust 1.82: Bump MSRV and remove workarounds.

* Remove `allow(unknown_lints)`.
* Remove match arms that are unnecessary due to `min_exhaustive_patterns`
  being stabilized.

Cargo.toml

@@ -43,7 +43,7 @@ resolver = "2"
 # When changing any of these values, be sure to also update the non-workspace packages
 # as listed above, if applicable.
 edition = "2021"
-rust-version = "1.81"
+rust-version = "1.82"
 license = "MIT OR Apache-2.0"
 authors = ["Kevin Reid <[email protected]>"]
 # TODO: add homepage = "..." when we have one

all-is-cubes-desktop/src/glue/rerun_mesh.rs

@@ -48,8 +48,6 @@ impl From<mesh::BlockVertex<NoTexture>> for Vertex {
             position: v.position.to_f32().to_array().into(),
             color: match v.coloring {
                 mesh::Coloring::Solid(color) => color.to_srgb8().into(),
-                #[allow(unreachable_patterns)] // TODO: Remove this arm after Rust 1.82
-                mesh::Coloring::Texture { .. } => unreachable!(),
             },
         }
     }

all-is-cubes-ui/src/ui_content/pages.rs

@@ -53,8 +53,6 @@ pub(super) fn new_paused_page(
             // TODO: quit_fn should be an async function, but we don't have a way to
             // kick off a “Quitting...” task yet.
             move || match quit_fn() {
-                #[allow(unreachable_patterns, reason = "TODO: Remove this arm after Rust 1.82")]
-                Ok(s) => match s {},
                 Err(_cancelled) => {
 
                     // TODO: display message indicating failure

all-is-cubes-wasm/Cargo.toml

@@ -6,7 +6,7 @@ name = "all-is-cubes-wasm"
 version = "0.8.0"
 authors = ["Kevin Reid <[email protected]>"]
 edition = "2021"
-rust-version = "1.81"
+rust-version = "1.82"
 description = "Web client for the recursive voxel game All is Cubes."
 # TODO: add homepage = "..." when we have one
 repository = "https://github.com/kpreid/all-is-cubes"

all-is-cubes/src/content/palette.rs

@@ -14,7 +14,6 @@
 //
 // 0xBB is the sRGB value approximating linear value 0.5.
 
-#![allow(unknown_lints)] // TODO: remove after Rust 1.82 is released
 #![allow(clippy::too_long_first_doc_paragraph, reason = "false positive on SVG")]
 
 use crate::math::{rgb_const, Rgb};

all-is-cubes/src/drawing.rs

@@ -72,7 +72,6 @@ pub fn rectangle_to_aab(rectangle: Rectangle, transform: Gridgid, max_brush: Gri
     // way, since it is precisely about identifying the volume occupied by drawing a
     // 2D-pixel.
 
-    #![allow(unknown_lints)] // TODO: remove after Rust 1.82 is released
     #![allow(clippy::too_long_first_doc_paragraph)] // TODO: find better phrasing
 
     if rectangle.size.width == 0 || rectangle.size.height == 0 {