Update src/stream/stream/min_by_key.rs

Co-Authored-By: Taiki Endo <te316e89@gmail.com>
5 years ago · fb78ed1812
parent 5a4fdeb1cd
commit fb78ed1812
1 changed files with 1 additions and 1 deletions
--- a/src/stream/stream/min_by_key.rs
+++ b/src/stream/stream/min_by_key.rs
@ -32,7 +32,7 @@ impl<S, K> Future for MinByKeyFuture<S, S::Item, K>
 where
    S: Stream,
    K: FnMut(&S::Item) -> S::Item,
-    S::Item: Ord + Copy,
+    S::Item: Ord,
 {
    type Output = Option<S::Item>;