update doc test

tisonkun · tisonkun · commit 5cc60f56e543 · 2024-03-24T15:24:43.000+08:00
Signed-off-by: tison &lt;wander4096@gmail.com&gt;
diff --git a/library/core/src/cell/once.rs b/library/core/src/cell/once.rs
@@ -178,6 +178,8 @@ impl<T> OnceCell<T> {
     /// # Examples
     ///
     /// ```
+    /// #![feature(once_cell_get_mut)]
+    ///
     /// use std::cell::OnceCell;
     ///
     /// let mut cell = OnceCell::new();
@@ -253,7 +255,7 @@ impl<T> OnceCell<T> {
     /// # Examples
     ///
     /// ```
-    /// #![feature(once_cell_try)]
+    /// #![feature(once_cell_get_mut)]
     ///
     /// use std::cell::OnceCell;
     ///
