chore: upgrade to Rust 1.67 (#17548)

Co-authored-by: Bartek Iwańczuk <biwanczuk@gmail.com>

2 files changed, 5 insertions, 5 deletions

diff --git a/ops/fast_call.rs b/ops/fast_call.rs
index de11b389b..9093190b2 100644
--- a/ops/fast_call.rs
+++ b/ops/fast_call.rs
@@ -68,9 +68,9 @@ pub(crate) fn generate(
   // - op_foo_fast, the fast call type.
   // - op_foo_fast_fn, the fast call function.
   let ident = item_fn.sig.ident.clone();
-  let fast_ident = Ident::new(&format!("{}_fast", ident), Span::call_site());
+  let fast_ident = Ident::new(&format!("{ident}_fast"), Span::call_site());
   let fast_fn_ident =
-    Ident::new(&format!("{}_fast_fn", ident), Span::call_site());
+    Ident::new(&format!("{ident}_fast_fn"), Span::call_site());
 
   // Deal with generics.
   let generics = &item_fn.sig.generics;
diff --git a/ops/optimizer.rs b/ops/optimizer.rs
index 1a6172b67..82593d247 100644
--- a/ops/optimizer.rs
+++ b/ops/optimizer.rs
@@ -735,7 +735,7 @@ mod tests {
     let mut op = Op::new(item, attrs);
     let mut optimizer = Optimizer::new();
     if let Err(e) = optimizer.analyze(&mut op) {
-      let e_str = format!("{:?}", e);
+      let e_str = format!("{e:?}");
       if update_expected {
         std::fs::write(input.with_extension("expected"), e_str)
           .expect("Failed to write expected file");
@@ -748,11 +748,11 @@ mod tests {
     if update_expected {
       std::fs::write(
         input.with_extension("expected"),
-        format!("{:#?}", optimizer),
+        format!("{optimizer:#?}"),
       )
       .expect("Failed to write expected file");
     } else {
-      assert_eq!(format!("{:#?}", optimizer), expected);
+      assert_eq!(format!("{optimizer:#?}"), expected);
     }
   }
 }