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-rw-r--r--compiler/rustc_mir_transform/src/mentioned_items.rs4
1 files changed, 4 insertions, 0 deletions
diff --git a/compiler/rustc_mir_transform/src/mentioned_items.rs b/compiler/rustc_mir_transform/src/mentioned_items.rs
index cf5c5f85a9f..f5c57418467 100644
--- a/compiler/rustc_mir_transform/src/mentioned_items.rs
+++ b/compiler/rustc_mir_transform/src/mentioned_items.rs
@@ -27,6 +27,10 @@ impl<'tcx> crate::MirPass<'tcx> for MentionedItems {
         visitor.visit_body(body);
         body.set_mentioned_items(visitor.mentioned_items);
     }
+
+    fn is_required(&self) -> bool {
+        true
+    }
 }
 
 // This visitor is carefully in sync with the one in `rustc_monomorphize::collector`. We are