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-rw-r--r--src/libcore/cell.rs2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/libcore/cell.rs b/src/libcore/cell.rs
index 64dbcbf7ae4..1ff187ed3f1 100644
--- a/src/libcore/cell.rs
+++ b/src/libcore/cell.rs
@@ -273,7 +273,7 @@ impl<T:Copy> Cell<T> {
     /// assert_eq!(c.get(), 6);
     /// ```
     #[inline]
-    #[unstable(feature = "cell_update", issue = "0")] // FIXME: issue
+    #[unstable(feature = "cell_update", issue = "50186")]
     pub fn update<F>(&self, f: F) -> T
     where
         F: FnOnce(T) -> T,