From 06c7e73e9941ae8d7f84e978b24cb2e0664453de Mon Sep 17 00:00:00 2001
From: Artem Vorotnikov <artem@vorotnikov.me>
Date: Tue, 3 Nov 2020 11:09:05 +0300
Subject: stream: fix StreamMap Default bound (#3093)

---
 tokio/src/stream/stream_map.rs | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/tokio/src/stream/stream_map.rs b/tokio/src/stream/stream_map.rs
index 8539e4da..9fed3c19 100644
--- a/tokio/src/stream/stream_map.rs
+++ b/tokio/src/stream/stream_map.rs
@@ -156,7 +156,7 @@ use std::task::{Context, Poll};
 ///     }
 /// }
 /// ```
-#[derive(Debug, Default)]
+#[derive(Debug)]
 pub struct StreamMap<K, V> {
     /// Streams stored in the map
     entries: Vec<(K, V)>,
@@ -513,6 +513,12 @@ where
     }
 }
 
+impl<K, V> Default for StreamMap<K, V> {
+    fn default() -> Self {
+        Self::new()
+    }
+}
+
 impl<K, V> Stream for StreamMap<K, V>
 where
     K: Clone + Unpin,
-- 
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