1 files changed, 2 insertions, 3 deletions
diff --git a/src/libtest/stats.rs b/src/libtest/stats.rs
index daef41666af..1929f1989d6 100644
--- a/src/libtest/stats.rs
+++ b/src/libtest/stats.rs
@@ -1027,10 +1027,9 @@ mod tests {
     #[test]
     fn test_boxplot_nonpositive() {
         fn t(s: &Summary<f64>, expected: String) {
-            use std::io::MemWriter;
-            let mut m = MemWriter::new();
+            let mut m = Vec::new();
             write_boxplot(&mut m as &mut io::Writer, s, 30).unwrap();
-            let out = String::from_utf8(m.unwrap()).unwrap();
+            let out = String::from_utf8(m).unwrap();
             assert_eq!(out, expected);
         }