Merge pull request rust-postgres#185 from oli-obk/master

address clippy and rust lints

Author: sfackler

src/md5.rs

@@ -8,7 +8,6 @@
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
 
-use std::io::prelude::*;
 use std::ptr;
 use std::mem;
 use std::ops::{Add, Range};
@@ -277,7 +276,7 @@ struct Md5State {
 }
 
 impl Md5State {
-    #[allow(new_without_default)]
+    #[allow(new_without_default_derive)]
     fn new() -> Md5State {
         Md5State {
             s0: 0x67452301,

src/priv_io.rs

@@ -1,4 +1,6 @@
 use byteorder::ReadBytesExt;
+// this import needs to stay to support pre 1.9 users
+#[allow(unused_imports)]
 use net2::TcpStreamExt;
 use std::error::Error;
 use std::io;
@@ -18,7 +20,7 @@ use std::os::windows::io::{AsRawSocket, RawSocket};
 
 use {SslMode, ConnectParams, ConnectTarget};
 use error::ConnectError;
-use io::{NegotiateSsl, StreamWrapper};
+use io::StreamWrapper;
 use message::{self, WriteMessage};
 use message::Frontend;
 

src/rows.rs

@@ -7,7 +7,7 @@ use std::fmt;
 use std::ops::Deref;
 use std::slice;
 
-use {Result, Transaction, DbErrorNew, SessionInfoNew, RowsNew, LazyRowsNew, StatementInternals,
+use {Result, Transaction, SessionInfoNew, RowsNew, LazyRowsNew, StatementInternals,
      WrongTypeNew};
 use types::{FromSql, SessionInfo, WrongType};
 use stmt::{Statement, Column};

src/url.rs

@@ -7,7 +7,6 @@
 // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
-use std::io::prelude::*;
 use std::str::FromStr;
 use hex::FromHex;