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-rw-r--r--tests/ui/sized/coinductive-2.rs2
1 files changed, 1 insertions, 1 deletions
diff --git a/tests/ui/sized/coinductive-2.rs b/tests/ui/sized/coinductive-2.rs
index 212274d2e4b..43a5a28f710 100644
--- a/tests/ui/sized/coinductive-2.rs
+++ b/tests/ui/sized/coinductive-2.rs
@@ -11,7 +11,7 @@ impl<T> CollectionFactory<T> for Vec<()> {
     type Collection = Vec<T>;
 }
 
-trait Collection<T>: Sized {
+trait Collection<T>: Sized { //~ WARN trait `Collection` is never used
     fn push(&mut self, v: T);
 }