1 files changed, 2 insertions, 2 deletions
diff --git a/src/librustc_data_structures/graph/implementation/mod.rs b/src/librustc_data_structures/graph/implementation/mod.rs
index 052a09c0774..c438a8558a7 100644
--- a/src/librustc_data_structures/graph/implementation/mod.rs
+++ b/src/librustc_data_structures/graph/implementation/mod.rs
@@ -303,11 +303,11 @@ pub struct AdjacentEdges<'g, N, E> {
 
 impl<'g, N: Debug, E: Debug> AdjacentEdges<'g, N, E> {
     fn targets(self) -> impl Iterator<Item = NodeIndex> + 'g {
-        self.into_iter().map(|(_, edge)| edge.target)
+        self.map(|(_, edge)| edge.target)
     }
 
     fn sources(self) -> impl Iterator<Item = NodeIndex> + 'g {
-        self.into_iter().map(|(_, edge)| edge.source)
+        self.map(|(_, edge)| edge.source)
     }
 }