fix(rustup): update io import, Writer::write

Make it build with the latest rust-nightly (2015-01-27)

Renamed io import to old_io.
Renamed Writer::write to Writer::write_all

src/client/mod.rs

@@ -18,8 +18,8 @@
 //! to the `status`, the `headers`, and the response body via the `Writer`
 //! trait.
 use std::default::Default;
-use std::io::IoResult;
-use std::io::util::copy;
+use std::old_io::IoResult;
+use std::old_io::util::copy;
 use std::iter::Extend;
 
 use url::UrlParser;

src/client/request.rs

@@ -1,5 +1,5 @@
 //! Client Requests
-use std::io::{BufferedWriter, IoResult};
+use std::old_io::{BufferedWriter, IoResult};
 
 use url::Url;
 
@@ -157,8 +157,8 @@ impl Request<Streaming> {
 
 impl Writer for Request<Streaming> {
     #[inline]
-    fn write(&mut self, msg: &[u8]) -> IoResult<()> {
-        self.body.write(msg)
+    fn write_all(&mut self, msg: &[u8]) -> IoResult<()> {
+        self.body.write_all(msg)
     }
 
     #[inline]

src/client/response.rs

@@ -1,6 +1,6 @@
 //! Client Responses
 use std::num::FromPrimitive;
-use std::io::{BufferedReader, IoResult};
+use std::old_io::{BufferedReader, IoResult};
 
 use header;
 use header::{ContentLength, TransferEncoding};
@@ -97,7 +97,7 @@ impl Reader for Response {
 mod tests {
     use std::borrow::Cow::Borrowed;
     use std::boxed::BoxAny;
-    use std::io::BufferedReader;
+    use std::old_io::BufferedReader;
 
     use header::Headers;
     use header::TransferEncoding;