1 files changed, 7 insertions, 5 deletions
diff --git a/src/libstd/io/util.rs b/src/libstd/io/util.rs
index b22090e0f16..38ab71c172c 100644
--- a/src/libstd/io/util.rs
+++ b/src/libstd/io/util.rs
@@ -51,7 +51,7 @@ impl<R: Reader> Reader for LimitReader<R> {
         }
 
         let len = cmp::min(self.limit, buf.len());
-        let res = self.inner.read(buf[mut ..len]);
+        let res = self.inner.read(buf.slice_to_mut(len));
         match res {
             Ok(len) => self.limit -= len,
             _ => {}
@@ -103,7 +103,7 @@ impl Reader for ZeroReader {
 
 impl Buffer for ZeroReader {
     fn fill_buf<'a>(&'a mut self) -> io::IoResult<&'a [u8]> {
-        static DATA: [u8, ..64] = [0, ..64];
+        static DATA: [u8; 64] = [0; 64];
         Ok(DATA.as_slice())
     }
 
@@ -163,6 +163,7 @@ impl Writer for MultiWriter {
 
 /// A `Reader` which chains input from multiple `Reader`s, reading each to
 /// completion before moving onto the next.
+#[deriving(Clone)]
 pub struct ChainedReader<I, R> {
     readers: I,
     cur_reader: Option<R>,
@@ -234,7 +235,7 @@ impl<R: Reader, W: Writer> Reader for TeeReader<R, W> {
 
 /// Copies all data from a `Reader` to a `Writer`.
 pub fn copy<R: Reader, W: Writer>(r: &mut R, w: &mut W) -> io::IoResult<()> {
-    let mut buf = [0, ..super::DEFAULT_BUF_SIZE];
+    let mut buf = [0; super::DEFAULT_BUF_SIZE];
     loop {
         let len = match r.read(&mut buf) {
             Ok(len) => len,
@@ -246,6 +247,7 @@ pub fn copy<R: Reader, W: Writer>(r: &mut R, w: &mut W) -> io::IoResult<()> {
 }
 
 /// An adaptor converting an `Iterator<u8>` to a `Reader`.
+#[deriving(Clone)]
 pub struct IterReader<T> {
     iter: T,
 }
@@ -276,11 +278,11 @@ impl<T: Iterator<u8>> Reader for IterReader<T> {
 
 #[cfg(test)]
 mod test {
+    use prelude::v1::*;
+
     use io::{MemReader, ByRefReader};
     use io;
-    use boxed::Box;
     use super::*;
-    use prelude::v1::*;
 
     #[test]
     fn test_limit_reader_unlimited() {