impl Error and FromError for HttpError; replace instances of try_io! with try!

src/server/mod.rs

@@ -55,11 +55,11 @@ impl<L: NetworkListener<S, A>, S: NetworkStream, A: NetworkAcceptor<S>> Server<L
           A: NetworkAcceptor<S>,
           L: NetworkListener<S, A>, {
         debug!("binding to {}:{}", self.ip, self.port);
-        let mut listener: L = try_io!(NetworkListener::<S, A>::bind((self.ip, self.port)));
+        let mut listener: L = try!(NetworkListener::<S, A>::bind((self.ip, self.port)));
 
-        let socket = try_io!(listener.socket_name());
+        let socket = try!(listener.socket_name());
 
-        let acceptor = try_io!(listener.listen());
+        let acceptor = try!(listener.listen());
 
         let captured = acceptor.clone();
         TaskBuilder::new().named("hyper acceptor").spawn(proc() {
@@ -131,7 +131,7 @@ impl<A: NetworkAcceptor<S>, S: NetworkStream> Listening<A> {
     /// and does not close the rest of the acceptors.
     pub fn close(&mut self) -> HttpResult<()> {
         debug!("closing server");
-        try_io!(self.acceptor.close());
+        try!(self.acceptor.close());
         Ok(())
     }
 }

src/server/request.rs

@@ -36,7 +36,7 @@ impl Request {
     /// Create a new Request, reading the StartLine and Headers so they are
     /// immediately useful.
     pub fn new<S: NetworkStream>(mut stream: S) -> HttpResult<Request> {
-        let remote_addr = try_io!(stream.peer_name());
+        let remote_addr = try!(stream.peer_name());
         debug!("remote addr = {}", remote_addr);
         let mut stream = BufferedReader::new(box stream as Box<NetworkStream + Send>);
         let (method, uri, version) = try!(read_request_line(&mut stream));