diff --git a/test/seq.rs b/test/seq.rs
index 605e7397d..806435f33 100644
--- a/test/seq.rs
+++ b/test/seq.rs
@@ -1,6 +1,4 @@
-#![allow(unstable)]
-
-use std::old_io::process::Command;
+use std::process::Command;
 use std::str;
 
 static PROGNAME: &'static str = "./seq";
@@ -8,27 +6,27 @@ static PROGNAME: &'static str = "./seq";
 #[test]
 fn test_count_up() {
     let p = Command::new(PROGNAME).args(&["10"]).output().unwrap();
-    let out = str::from_utf8(p.output.as_slice()).unwrap();
+    let out = str::from_utf8(&p.stdout).unwrap();
     assert_eq!(out, "1\n2\n3\n4\n5\n6\n7\n8\n9\n10\n");
 }
 
 #[test]
 fn test_count_down() {
     let p = Command::new(PROGNAME).args(&["--", "5", "-1", "1"]).output().unwrap();
-    let out = str::from_utf8(p.output.as_slice()).unwrap();
+    let out = str::from_utf8(&p.stdout).unwrap();
     assert_eq!(out, "5\n4\n3\n2\n1\n");
 }
 
 #[test]
 fn test_separator_and_terminator() {
     let p = Command::new(PROGNAME).args(&["-s", ",", "-t", "!", "2", "6"]).output().unwrap();
-    let out = str::from_utf8(p.output.as_slice()).unwrap();
+    let out = str::from_utf8(&p.stdout).unwrap();
     assert_eq!(out, "2,3,4,5,6!");
 }
 
 #[test]
 fn test_equalize_widths() {
     let p = Command::new(PROGNAME).args(&["-w", "5", "10"]).output().unwrap();
-    let out = str::from_utf8(p.output.as_slice()).unwrap();
+    let out = str::from_utf8(&p.stdout).unwrap();
     assert_eq!(out, "05\n06\n07\n08\n09\n10\n");
 }