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Voultapher · Voultapher · commit 3a0c0e9cb7b3 · 2026-04-18T15:12:33.000+02:00
diff --git a/library/coretests/tests/macros.rs b/library/coretests/tests/macros.rs
@@ -236,9 +236,12 @@ impl Drop for MutRefWithDrop<'_> {
 fn temporary_scope_introduction() {
     // Fails to compile if the macros don't introduce a temporary scope, since `&mut val` would
     // create a second mutable borrow while `MutRefWithDrop` still holds a unique ref.
+    // See https://github.com/rust-lang/rust/issues/154406 for reference.
     let mut val = 0;
 
     (assert_matches!(*MutRefWithDrop(&mut val).0, 0), std::mem::take(&mut val));
+    (assert_matches!(*MutRefWithDrop(&mut val).0, 0, "msg"), std::mem::take(&mut val));
 
     (debug_assert_matches!(*MutRefWithDrop(&mut val).0, 0), std::mem::take(&mut val));
+    (debug_assert_matches!(*MutRefWithDrop(&mut val).0, 0, "msg"), std::mem::take(&mut val));
 }
