Suppress warnings about using AsciiExt

Author: Markus Westerlind

idna/src/punycode.rs

@@ -15,6 +15,7 @@
 
 use std::u32;
 use std::char;
+#[allow(unused_imports, deprecated)]
 use std::ascii::AsciiExt;
 
 // Bootstring parameters for Punycode

idna/src/uts46.rs

@@ -11,6 +11,7 @@
 
 use self::Mapping::*;
 use punycode;
+#[allow(unused_imports, deprecated)]
 use std::ascii::AsciiExt;
 use std::cmp::Ordering::{Equal, Less, Greater};
 use unicode_bidi::{BidiClass, bidi_class};

src/parser.rs

@@ -6,7 +6,9 @@
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
 
+#[allow(unused_imports, deprecated)]
 use std::ascii::AsciiExt;
+
 use std::error::Error;
 use std::fmt::{self, Formatter, Write};
 use std::str;