AsciiExt was deprecated in 1.26.0

src/client.rs

@@ -13,7 +13,6 @@
 // limitations under the License.
 
 use ascii::{AsciiString};
-use std::ascii::AsciiExt;
 
 use std::io::Error as IoError;
 use std::io::Result as IoResult;

src/common.rs

@@ -13,7 +13,6 @@
 // limitations under the License.
 
 use ascii::{AsciiString, AsciiStr, FromAsciiError};
-use std::ascii::AsciiExt;
 use std::fmt::{self, Display, Formatter};
 use std::str::{FromStr};
 use std::cmp::Ordering;

src/request.rs

@@ -12,8 +12,6 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-use std::ascii::AsciiExt;
-
 use std::io::Error as IoError;
 use std::io::{self, Cursor, Read, Write, ErrorKind};
 

src/response.rs

@@ -14,7 +14,6 @@
 
 use common::{Header, HTTPVersion, StatusCode, HTTPDate};
 
-use std::ascii::AsciiExt;
 use std::cmp::Ordering;
 use std::sync::mpsc::Receiver;