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-rw-r--r--src/liballoc/pin.rs1
1 files changed, 1 insertions, 0 deletions
diff --git a/src/liballoc/pin.rs b/src/liballoc/pin.rs
index 8cb57ade865..f7c804b2aba 100644
--- a/src/liballoc/pin.rs
+++ b/src/liballoc/pin.rs
@@ -77,6 +77,7 @@
 //! // The pointer should point to the correct location,
 //! // so long as the struct hasn't moved.
 //! // Meanwhile, we are free to move the pointer around.
+//! # #[allow(unused_mut)]
 //! let mut still_unmoved = unmoved;
 //! assert_eq!(still_unmoved.slice, NonNull::from(&still_unmoved.data));
 //!