diff --git a/compiler/rustc_errors/src/lib.rs b/compiler/rustc_errors/src/lib.rs
index 345247b07001b..3042467ded7f8 100644
--- a/compiler/rustc_errors/src/lib.rs
+++ b/compiler/rustc_errors/src/lib.rs
@@ -522,11 +522,6 @@ impl Drop for HandlerInner {
                 "no warnings or errors encountered even though `delayed_good_path_bugs` issued",
             );
         }
-
-        assert!(
-            self.unstable_expect_diagnostics.is_empty(),
-            "all diagnostics with unstable expectations should have been converted",
-        );
     }
 }