From 4cb9de48fbf3e616d80bb6726ce590e06c763a1e Mon Sep 17 00:00:00 2001
From: Evgeny Safronov <division494@gmail.com>
Date: Sat, 8 Apr 2017 19:37:46 +0300
Subject: [PATCH] fix: add feature to doc tests

---
 src/libcollections/string.rs | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/libcollections/string.rs b/src/libcollections/string.rs
index 12f582404dc7..6da4cc1c7138 100644
--- a/src/libcollections/string.rs
+++ b/src/libcollections/string.rs
@@ -1410,6 +1410,7 @@ impl FromUtf8Error {
     /// Basic usage:
     ///
     /// ```
+    /// #![feature(from_utf8_error_as_bytes)]
     /// // some invalid bytes, in a vector
     /// let bytes = vec![0, 159];
     ///