1 files changed, 3 insertions, 4 deletions
diff --git a/compiler/rustc_session/src/errors.rs b/compiler/rustc_session/src/errors.rs
index 758c3122404..8baa5d892a5 100644
--- a/compiler/rustc_session/src/errors.rs
+++ b/compiler/rustc_session/src/errors.rs
@@ -18,10 +18,9 @@ pub struct FeatureGateError {
 impl<'a> IntoDiagnostic<'a> for FeatureGateError {
     #[track_caller]
     fn into_diagnostic(self, dcx: &'a DiagCtxt, level: Level) -> DiagnosticBuilder<'a> {
-        let mut diag = DiagnosticBuilder::new(dcx, level, self.explain);
-        diag.span(self.span);
-        diag.code(error_code!(E0658));
-        diag
+        DiagnosticBuilder::new(dcx, level, self.explain)
+            .span_mv(self.span)
+            .code_mv(error_code!(E0658))
     }
 }