remove unused mut qualifiers

2 files changed, 1 insertions, 3 deletions

diff --git a/src/libtest/lib.rs b/src/libtest/lib.rs
index 25377e3afa1..c5c84396e18 100644
--- a/src/libtest/lib.rs
+++ b/src/libtest/lib.rs
@@ -32,8 +32,6 @@
        html_favicon_url = "http://www.rust-lang.org/favicon.ico",
        html_root_url = "http://doc.rust-lang.org/nightly/")]
 
-#![cfg_attr(not(stage0), allow(unused_mut))] // NOTE: remove after stage0 snap
-
 #![feature(asm, slicing_syntax)]
 #![feature(box_syntax)]
 #![feature(collections)]
diff --git a/src/libtest/stats.rs b/src/libtest/stats.rs
index 0ce115a0c1f..ebd86dbf61c 100644
--- a/src/libtest/stats.rs
+++ b/src/libtest/stats.rs
@@ -332,7 +332,7 @@ pub fn winsorize<T: Float + FromPrimitive>(samples: &mut [T], pct: T) {
 
 /// Returns a HashMap with the number of occurrences of every element in the
 /// sequence that the iterator exposes.
-pub fn freq_count<T, U>(mut iter: T) -> hash_map::HashMap<U, uint>
+pub fn freq_count<T, U>(iter: T) -> hash_map::HashMap<U, uint>
   where T: Iterator<Item=U>, U: Eq + Clone + Hash<Hasher>
 {
     let mut map: hash_map::HashMap<U,uint> = hash_map::HashMap::new();