diff --git a/src/test.rs b/src/test.rs
index 159b5b1..ef3b7c0 100644
--- a/src/test.rs
+++ b/src/test.rs
@@ -1,8 +1,6 @@
 extern crate "rustc-serialize" as serialize;
 
-use std::io::MemWriter;
 use std::fmt::Show;
-use std::io::MemReader;
 use std::collections::HashMap;
 
 use rustc_serialize::{