1 files changed, 5 insertions, 5 deletions
diff --git a/src/libstd/io/mem.rs b/src/libstd/io/mem.rs
index ee05a9e5596..884582cbaa8 100644
--- a/src/libstd/io/mem.rs
+++ b/src/libstd/io/mem.rs
@@ -160,7 +160,7 @@ impl Reader for MemReader {
         let write_len = min(buf.len(), self.buf.len() - self.pos);
         {
             let input = &self.buf[self.pos.. (self.pos + write_len)];
-            let output = buf.slice_to_mut(write_len);
+            let output = &mut buf[.. write_len];
             assert_eq!(input.len(), output.len());
             slice::bytes::copy_memory(output, input);
         }
@@ -205,11 +205,11 @@ impl<'a> Reader for &'a [u8] {
         let write_len = min(buf.len(), self.len());
         {
             let input = &self[..write_len];
-            let output = buf.slice_to_mut(write_len);
+            let output = &mut buf[.. write_len];
             slice::bytes::copy_memory(output, input);
         }
 
-        *self = self.slice_from(write_len);
+        *self = &self[write_len..];
 
         Ok(write_len)
     }
@@ -270,7 +270,7 @@ impl<'a> BufWriter<'a> {
 impl<'a> Writer for BufWriter<'a> {
     #[inline]
     fn write(&mut self, src: &[u8]) -> IoResult<()> {
-        let dst = self.buf.slice_from_mut(self.pos);
+        let dst = &mut self.buf[self.pos..];
         let dst_len = dst.len();
 
         if dst_len == 0 {
@@ -350,7 +350,7 @@ impl<'a> Reader for BufReader<'a> {
         let write_len = min(buf.len(), self.buf.len() - self.pos);
         {
             let input = &self.buf[self.pos.. (self.pos + write_len)];
-            let output = buf.slice_to_mut(write_len);
+            let output = &mut buf[.. write_len];
             assert_eq!(input.len(), output.len());
             slice::bytes::copy_memory(output, input);
         }