fix UI test, simplify error message

carolynzech · Jun 25, 2024 · 43a865a · 43a865a
1 parent a451b2a
commit 43a865a
Showing 1 changed file with 6 additions and 0 deletions.
diff --git a/core/src/fmt/mod.rs b/core/src/fmt/mod.rs
@@ -459,6 +459,12 @@ impl<'a> Arguments<'a> {
     }
 }
 
+// Manually implementing these results in better error messages.
+#[stable(feature = "rust1", since = "1.0.0")]
+impl !Send for Arguments<'_> {}
+#[stable(feature = "rust1", since = "1.0.0")]
+impl !Sync for Arguments<'_> {}
+
 #[stable(feature = "rust1", since = "1.0.0")]
 impl Debug for Arguments<'_> {
     fn fmt(&self, fmt: &mut Formatter<'_>) -> Result {