1 files changed, 3 insertions, 3 deletions
diff --git a/compiler/rustc_hir_analysis/src/astconv/errors.rs b/compiler/rustc_hir_analysis/src/astconv/errors.rs
index 5e1c29440a5..24b55461a42 100644
--- a/compiler/rustc_hir_analysis/src/astconv/errors.rs
+++ b/compiler/rustc_hir_analysis/src/astconv/errors.rs
@@ -58,13 +58,13 @@ impl<'o, 'tcx> dyn AstConv<'tcx> + 'o {
         if !trait_def.paren_sugar {
             if trait_segment.args().parenthesized == hir::GenericArgsParentheses::ParenSugar {
                 // For now, require that parenthetical notation be used only with `Fn()` etc.
-                let mut err = feature_err(
+                feature_err(
                     &self.tcx().sess.parse_sess,
                     sym::unboxed_closures,
                     span,
                     "parenthetical notation is only stable when used with `Fn`-family traits",
-                );
-                err.emit();
+                )
+                .emit();
             }
 
             return;