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-rw-r--r--compiler/rustc_data_structures/src/vec_map.rs3
1 files changed, 1 insertions, 2 deletions
diff --git a/compiler/rustc_data_structures/src/vec_map.rs b/compiler/rustc_data_structures/src/vec_map.rs
index 2417df66bb9..d1a99bcaeb7 100644
--- a/compiler/rustc_data_structures/src/vec_map.rs
+++ b/compiler/rustc_data_structures/src/vec_map.rs
@@ -71,8 +71,7 @@ where
         // This should return just one element, otherwise it's a bug
         assert!(
             filter.next().is_none(),
-            "Collection {:#?} should have just one matching element",
-            self
+            "Collection {self:#?} should have just one matching element"
         );
         Some(value)
     }