fix doc compile

Signed-off-by: Yoshua Wuyts <yoshuawuyts@gmail.com>

src/io/read/mod.rs

@@ -10,7 +10,7 @@ use read_to_end::{read_to_end_internal, ReadToEndFuture};
 use read_to_string::ReadToStringFuture;
 use read_vectored::ReadVectoredFuture;
 
-use std::io::IoSliceMut;
+use std::io;
 use std::mem;
 
 use cfg_if::cfg_if;
@@ -86,7 +86,7 @@ pub trait Read {
     /// [`read`]: #tymethod.read
     fn read_vectored<'a>(
         &'a mut self,
-        bufs: &'a mut [IoSliceMut<'a>],
+        bufs: &'a mut [io::IoSliceMut<'a>],
     ) -> ret!('a, ReadVectoredFuture, io::Result<usize>)
     where
         Self: Unpin,

src/io/write/mod.rs

@@ -8,7 +8,7 @@ use write::WriteFuture;
 use write_all::WriteAllFuture;
 use write_vectored::WriteVectoredFuture;
 
-use std::io::IoSlice;
+use std::io;
 
 use cfg_if::cfg_if;
 use futures_io::AsyncWrite;
@@ -99,7 +99,7 @@ pub trait Write {
     /// [`write`]: #tymethod.write
     fn write_vectored<'a>(
         &'a mut self,
-        bufs: &'a [IoSlice<'a>],
+        bufs: &'a [io::IoSlice<'a>],
     ) -> ret!('a, WriteVectoredFuture, io::Result<usize>)
     where
         Self: Unpin,