diff --git a/bindgen-tests/tests/expectations/build.rs b/bindgen-tests/tests/expectations/build.rs
index 6136823e21..f4ded7e12d 100644
--- a/bindgen-tests/tests/expectations/build.rs
+++ b/bindgen-tests/tests/expectations/build.rs
@@ -47,10 +47,9 @@ fn main() {
             test_string.push_str(&format!(
                 r###"
 #[path = "{}"]
-mod {};
+mod {module_name};
 "###,
                 path.display().to_string().replace('\\', "\\\\"),
-                module_name,
             ));
         }
     }
diff --git a/bindgen-tests/tests/tests.rs b/bindgen-tests/tests/tests.rs
index 27e8108052..6e3c358d3e 100644
--- a/bindgen-tests/tests/tests.rs
+++ b/bindgen-tests/tests/tests.rs
@@ -183,9 +183,8 @@ fn compare_generated_header(
         }
         None => panic!(
             "missing test expectation file and/or '__testing_only_libclang_$VERSION' \
-             feature for header '{}'; looking for expectation file at '{:?}'",
+             feature for header '{}'; looking for expectation file at '{looked_at:?}'",
             header.display(),
-            looked_at,
         ),
     }
 
diff --git a/bindgen/codegen/helpers.rs b/bindgen/codegen/helpers.rs
index 19338ee65f..49928cce3a 100644
--- a/bindgen/codegen/helpers.rs
+++ b/bindgen/codegen/helpers.rs
@@ -107,7 +107,7 @@ pub(crate) fn blob(
     }
 
     ctx.generated_opaque_array(align);
-    let ident = format_ident!("__BindgenOpaqueArray{}", align);
+    let ident = format_ident!("__BindgenOpaqueArray{align}");
     let size = layout.size;
     if ctx.options().enable_cxx_namespaces {
         syn::parse_quote! { root::#ident<[u8; #size]> }
diff --git a/bindgen/codegen/mod.rs b/bindgen/codegen/mod.rs
index 295029e0d9..371f9e6609 100644
--- a/bindgen/codegen/mod.rs
+++ b/bindgen/codegen/mod.rs
@@ -5617,7 +5617,7 @@ pub(crate) mod utils {
             let ident = if align == 1 {
                 format_ident!("__BindgenOpaqueArray")
             } else {
-                format_ident!("__BindgenOpaqueArray{}", align)
+                format_ident!("__BindgenOpaqueArray{align}")
             };
             let repr = if align <= 1 {
                 quote! { #[repr(C)] }
diff --git a/bindgen/ir/item.rs b/bindgen/ir/item.rs
index 260c5e8764..47aa248688 100644
--- a/bindgen/ir/item.rs
+++ b/bindgen/ir/item.rs
@@ -1701,8 +1701,7 @@ impl Item {
                 if let Err(ParseError::Recurse) = result {
                     warn!(
                         "Unknown type, assuming named template type: \
-                         id = {:?}; spelling = {}",
-                        id,
+                         id = {id:?}; spelling = {}",
                         ty.spelling()
                     );
                     Item::type_param(Some(id), location, ctx)
@@ -1732,13 +1731,10 @@ impl Item {
 
         debug!(
             "Item::type_param:\n\
-             \twith_id = {:?},\n\
-             \tty = {} {:?},\n\
-             \tlocation: {:?}",
-            with_id,
+             \twith_id = {with_id:?},\n\
+             \tty = {} {ty:?},\n\
+             \tlocation: {location:?}",
             ty.spelling(),
-            ty,
-            location
         );
 
         if ty.kind() != clang_sys::CXType_Unexposed {
diff --git a/bindgen/lib.rs b/bindgen/lib.rs
index 3582e6af80..f2c8870e05 100644
--- a/bindgen/lib.rs
+++ b/bindgen/lib.rs
@@ -685,7 +685,7 @@ fn rust_to_clang_target(rust_target: &str) -> Box<str> {
 
     let mut triple: Vec<&str> = rust_target.split_terminator('-').collect();
 
-    assert!(!triple.is_empty(), "{}", TRIPLE_HYPHENS_MESSAGE);
+    assert!(!triple.is_empty(), "{TRIPLE_HYPHENS_MESSAGE}");
     triple.resize(4, "");
 
     // RISC-V