2 files changed, 3 insertions, 3 deletions
diff --git a/compiler/rustc_attr/src/builtin.rs b/compiler/rustc_attr/src/builtin.rs
index ab5e19050ea..40531c1c164 100644
--- a/compiler/rustc_attr/src/builtin.rs
+++ b/compiler/rustc_attr/src/builtin.rs
@@ -619,7 +619,7 @@ fn try_gate_cfg(name: Symbol, span: Span, sess: &ParseSess, features: Option<&Fe
 fn gate_cfg(gated_cfg: &GatedCfg, cfg_span: Span, sess: &ParseSess, features: &Features) {
     let (cfg, feature, has_feature) = gated_cfg;
     if !has_feature(features) && !cfg_span.allows_unstable(*feature) {
-        let explain = format!("`cfg({})` is experimental and subject to change", cfg);
+        let explain = format!("`cfg({cfg})` is experimental and subject to change");
         feature_err(sess, *feature, cfg_span, &explain).emit();
     }
 }
@@ -975,7 +975,7 @@ pub fn find_repr_attrs(sess: &Session, attr: &Attribute) -> Vec<ReprAttr> {
 }
 
 pub fn parse_repr_attr(sess: &Session, attr: &Attribute) -> Vec<ReprAttr> {
-    assert!(attr.has_name(sym::repr), "expected `#[repr(..)]`, found: {:?}", attr);
+    assert!(attr.has_name(sym::repr), "expected `#[repr(..)]`, found: {attr:?}");
     use ReprAttr::*;
     let mut acc = Vec::new();
     let diagnostic = &sess.parse_sess.span_diagnostic;
diff --git a/compiler/rustc_attr/src/session_diagnostics.rs b/compiler/rustc_attr/src/session_diagnostics.rs
index 91c6bcb08a0..3ba7a3c5336 100644
--- a/compiler/rustc_attr/src/session_diagnostics.rs
+++ b/compiler/rustc_attr/src/session_diagnostics.rs
@@ -51,7 +51,7 @@ pub(crate) struct UnknownMetaItem<'a> {
 // Manual implementation to be able to format `expected` items correctly.
 impl<'a> IntoDiagnostic<'a> for UnknownMetaItem<'_> {
     fn into_diagnostic(self, handler: &'a Handler) -> DiagnosticBuilder<'a, ErrorGuaranteed> {
-        let expected = self.expected.iter().map(|name| format!("`{}`", name)).collect::<Vec<_>>();
+        let expected = self.expected.iter().map(|name| format!("`{name}`")).collect::<Vec<_>>();
         let mut diag = handler.struct_span_err_with_code(
             self.span,
             fluent::attr_unknown_meta_item,