Merge pull request #440 from gramlang/rust-v1.83.0

Update Rust to v1.83.0

.github/workflows/ci.yml

@@ -83,8 +83,8 @@ jobs:
         #   https://github.com/rust-lang/rustup/issues/2441
         #
         # for more information.
-        rustup toolchain install 1.81.0 --no-self-update # [ref:rust_1.81.0]
-        rustup default 1.81.0 # [ref:rust_1.81.0]
+        rustup toolchain install 1.83.0 --no-self-update # [ref:rust_1.83.0]
+        rustup default 1.83.0 # [ref:rust_1.83.0]
 
         # Add the targets.
         rustup target add x86_64-pc-windows-msvc
@@ -124,8 +124,8 @@ jobs:
         set -euxo pipefail
 
         # Install the appropriate version of Rust.
-        rustup toolchain install 1.81.0 # [ref:rust_1.81.0]
-        rustup default 1.81.0 # [ref:rust_1.81.0]
+        rustup toolchain install 1.83.0 # [ref:rust_1.83.0]
+        rustup default 1.83.0 # [ref:rust_1.83.0]
 
         # Add the targets.
         rustup target add x86_64-apple-darwin
@@ -198,8 +198,8 @@ jobs:
         set -euxo pipefail
 
         # Install the appropriate version of Rust.
-        rustup toolchain install 1.81.0 # [ref:rust_1.81.0]
-        rustup default 1.81.0 # [ref:rust_1.81.0]
+        rustup toolchain install 1.83.0 # [ref:rust_1.83.0]
+        rustup default 1.83.0 # [ref:rust_1.83.0]
 
         # Fetch the program version.
         VERSION="$(cargo pkgid | cut -d# -f2 | cut -d: -f2)"

src/error.rs

@@ -34,7 +34,7 @@ impl fmt::Display for Error {
 }
 
 impl error::Error for Error {
-    fn source<'a>(&'a self) -> Option<&(dyn error::Error + 'static)> {
+    fn source<'a>(&'a self) -> Option<&'a (dyn error::Error + 'static)> {
         self.reason.as_deref()
     }
 }

src/term.rs

@@ -74,14 +74,14 @@ pub enum Variant<'a> {
     If(Rc<Term<'a>>, Rc<Term<'a>>, Rc<Term<'a>>),
 }
 
-impl<'a> Display for Term<'a> {
+impl Display for Term<'_> {
     fn fmt(&self, f: &mut Formatter) -> std::fmt::Result {
         write!(f, "{}", self.variant)?;
         Ok(())
     }
 }
 
-impl<'a> Display for Variant<'a> {
+impl Display for Variant<'_> {
     fn fmt(&self, f: &mut Formatter) -> std::fmt::Result {
         match self {
             Self::Unifier(subterm_rc, _) => {

src/token.rs

@@ -64,13 +64,13 @@ pub enum TerminatorType {
     Semicolon,
 }
 
-impl<'a> Display for Token<'a> {
+impl Display for Token<'_> {
     fn fmt(&self, f: &mut Formatter) -> Result {
         write!(f, "{}", self.variant)
     }
 }
 
-impl<'a> Display for Variant<'a> {
+impl Display for Variant<'_> {
     fn fmt(&self, f: &mut Formatter) -> Result {
         match self {
             Self::Asterisk => write!(f, "*"),

toast.yml

@@ -17,11 +17,11 @@ command_prefix: |
   cargo-offline () { cargo --frozen --offline "$@"; }
 
   # Use this wrapper for formatting code or checking that code is formatted. We use a nightly Rust
-  # version for the `trailing_comma` formatting option [tag:rust_fmt_nightly_2024-09-06]. The
+  # version for the `trailing_comma` formatting option [tag:rust_fmt_nightly_2024-11-28]. The
   # nightly version was chosen as the latest available release with all components present
   # according to this page:
   #   https://rust-lang.github.io/rustup-components-history/x86_64-unknown-linux-gnu.html
-  cargo-fmt () { cargo +nightly-2024-09-06 --frozen --offline fmt --all -- "$@"; }
+  cargo-fmt () { cargo +nightly-2024-11-28 --frozen --offline fmt --all -- "$@"; }
 
   # Make Bash log commands.
   set -x
@@ -71,18 +71,18 @@ tasks:
       - install_packages
       - create_user
     command: |
-      # Install stable Rust [tag:rust_1.81.0].
+      # Install stable Rust [tag:rust_1.83.0].
       curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- \
         -y \
-        --default-toolchain 1.81.0 \
+        --default-toolchain 1.83.0 \
         --profile minimal \
         --component clippy
 
       # Add Rust tools to `$PATH`.
       . "$HOME/.cargo/env"
 
-      # Install nightly Rust [ref:rust_fmt_nightly_2024-09-06].
-      rustup toolchain install nightly-2024-09-06 --profile minimal --component rustfmt
+      # Install nightly Rust [ref:rust_fmt_nightly_2024-11-28].
+      rustup toolchain install nightly-2024-11-28 --profile minimal --component rustfmt
 
   install_tools:
     description: Install the tools needed to build and validate the program.