`for x in xs.iter_mut()` -> `for x in &mut xs`

Also `for x in option.iter_mut()` -> `if let Some(ref mut x) = option`

2 files changed, 3 insertions, 3 deletions

diff --git a/src/libtest/lib.rs b/src/libtest/lib.rs
index a985c049fec..63969e996d3 100644
--- a/src/libtest/lib.rs
+++ b/src/libtest/lib.rs
@@ -1060,7 +1060,7 @@ impl Bencher {
 
             let loop_run = Duration::span(|| {
 
-                for p in samples.iter_mut() {
+                for p in &mut *samples {
                     self.bench_n(n, |x| f(x));
                     *p = self.ns_per_iter() as f64;
                 };
@@ -1068,7 +1068,7 @@ impl Bencher {
                 stats::winsorize(samples, 5.0);
                 summ = Some(stats::Summary::new(samples));
 
-                for p in samples.iter_mut() {
+                for p in &mut *samples {
                     self.bench_n(5 * n, |x| f(x));
                     *p = self.ns_per_iter() as f64;
                 };
diff --git a/src/libtest/stats.rs b/src/libtest/stats.rs
index 54f06fd0662..0ce115a0c1f 100644
--- a/src/libtest/stats.rs
+++ b/src/libtest/stats.rs
@@ -321,7 +321,7 @@ pub fn winsorize<T: Float + FromPrimitive>(samples: &mut [T], pct: T) {
     let lo = percentile_of_sorted(tmp.as_slice(), pct);
     let hundred: T = FromPrimitive::from_uint(100).unwrap();
     let hi = percentile_of_sorted(tmp.as_slice(), hundred-pct);
-    for samp in samples.iter_mut() {
+    for samp in samples {
         if *samp > hi {
             *samp = hi
         } else if *samp < lo {