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-rw-r--r--src/test/bench/shootout-binarytrees.rs2
1 files changed, 2 insertions, 0 deletions
diff --git a/src/test/bench/shootout-binarytrees.rs b/src/test/bench/shootout-binarytrees.rs
index 0b16e8011e8..2f25c37a911 100644
--- a/src/test/bench/shootout-binarytrees.rs
+++ b/src/test/bench/shootout-binarytrees.rs
@@ -41,7 +41,9 @@
 extern crate arena;
 
 use std::iter::range_step;
+use std::str::from_str;
 use std::sync::Future;
+
 use arena::TypedArena;
 
 enum Tree<'a> {