1 files changed, 1 insertions, 1 deletions
diff --git a/compiler/rustc_middle/src/traits/specialization_graph.rs b/compiler/rustc_middle/src/traits/specialization_graph.rs
index 18a57b6181a..e48b46d12c4 100644
--- a/compiler/rustc_middle/src/traits/specialization_graph.rs
+++ b/compiler/rustc_middle/src/traits/specialization_graph.rs
@@ -43,7 +43,7 @@ impl Graph {
     /// The parent of a given impl, which is the `DefId` of the trait when the
     /// impl is a "specialization root".
     pub fn parent(&self, child: DefId) -> DefId {
-        *self.parent.get(&child).unwrap_or_else(|| panic!("Failed to get parent for {:?}", child))
+        *self.parent.get(&child).unwrap_or_else(|| panic!("Failed to get parent for {child:?}"))
     }
 }