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-rw-r--r--src/libcore/iter/iterator.rs2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/libcore/iter/iterator.rs b/src/libcore/iter/iterator.rs
index 5b6d9e2033c..2903c370df8 100644
--- a/src/libcore/iter/iterator.rs
+++ b/src/libcore/iter/iterator.rs
@@ -1857,7 +1857,7 @@ pub trait Iterator {
     /// ```
     /// let a = ["lol", "NaN", "2", "5"];
     ///
-    /// let mut first_number = a.iter().find_map(|s| s.parse().ok());
+    /// let first_number = a.iter().find_map(|s| s.parse().ok());
     ///
     /// assert_eq!(first_number, Some(2));
     /// ```