diff --git a/src/librustc_data_structures/binary_search_util/test.rs b/src/librustc_data_structures/binary_search_util/test.rs
index a6361d91265..d74febb5c0f 100644
--- a/src/librustc_data_structures/binary_search_util/test.rs
+++ b/src/librustc_data_structures/binary_search_util/test.rs
@@ -4,7 +4,8 @@ type Element = (usize, &'static str);
 
 fn test_map() -> Vec<Element> {
     let mut data = vec![(3, "three-a"), (0, "zero"), (3, "three-b"), (22, "twenty-two")];
-    data.sort_by_key(get_key)
+    data.sort_by_key(get_key);
+    data
 }
 
 fn get_key(data: &Element) -> usize {
@@ -12,7 +13,7 @@ fn get_key(data: &Element) -> usize {
 }
 
 #[test]
-fn binary_search_slice() {
+fn binary_search_slice_test() {
     let map = test_map();
     assert_eq!(binary_search_slice(&map, get_key, &0), &[(0, "zero")]);
     assert_eq!(binary_search_slice(&map, get_key, &1), &[]);