1 files changed, 1 insertions, 1 deletions
diff --git a/compiler/rustc_passes/src/debugger_visualizer.rs b/compiler/rustc_passes/src/debugger_visualizer.rs
index f4cd2fbc91f..42e929bde2c 100644
--- a/compiler/rustc_passes/src/debugger_visualizer.rs
+++ b/compiler/rustc_passes/src/debugger_visualizer.rs
@@ -48,7 +48,7 @@ impl DebuggerVisualizerCollector<'_> {
             let file =
                 match resolve_path(&self.sess.parse_sess, visualizer_path.as_str(), attr.span) {
                     Ok(file) => file,
-                    Err(mut err) => {
+                    Err(err) => {
                         err.emit();
                         return;
                     }