hide another #[allow] directive from a docs example

This is a repeat for Rc of e0e64a8930, which cleaned up the same thing for Arc.
2022-04-08 10:29:00 -07:00 · 2022-04-08 10:29:00 -07:00 · c1023e9e5f
commit c1023e9e5f
parent 2d5a21f63c
1 changed files with 1 additions and 1 deletions
--- a/library/alloc/src/rc.rs
+++ b/library/alloc/src/rc.rs
@ -393,7 +393,7 @@ impl<T> Rc<T> {
    /// # Examples
    ///
    /// ```
-    /// #![allow(dead_code)]
+    /// # #![allow(dead_code)]
    /// use std::rc::{Rc, Weak};
    ///
    /// struct Gadget {