Silence Nightly-only unused import warning

https://users.rust-lang.org/t/psa-dealing-with-warning-unused-import-std-ascii-asciiext-in-today-s-nightly/13726

Author: SimonSapin

macros/lib.rs

@@ -8,7 +8,7 @@ extern crate proc_macro;
 #[macro_use] extern crate quote;
 extern crate syn;
 
-use std::ascii::AsciiExt;
+#[allow(unused_imports)] use std::ascii::AsciiExt;
 
 define_proc_macros! {
     /// Input: the arms of a `match` expression.

src/nth.rs

@@ -2,7 +2,7 @@
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
-use std::ascii::AsciiExt;
+#[allow(unused_imports)] use std::ascii::AsciiExt;
 
 use super::{Token, Parser, ParserInput, BasicParseError};
 

src/parser.rs

@@ -5,7 +5,7 @@
 use cow_rc_str::CowRcStr;
 use smallvec::SmallVec;
 use std::ops::Range;
-use std::ascii::AsciiExt;
+#[allow(unused_imports)] use std::ascii::AsciiExt;
 use std::ops::BitOr;
 use tokenizer::{Token, Tokenizer, SourcePosition, SourceLocation};
 

src/rules_and_declarations.rs

@@ -6,7 +6,7 @@
 
 use cow_rc_str::CowRcStr;
 use parser::{parse_until_before, parse_until_after, parse_nested_block, ParserState};
-use std::ascii::AsciiExt;
+#[allow(unused_imports)] use std::ascii::AsciiExt;
 use super::{Token, Parser, Delimiter, ParseError, BasicParseError, BasicParseErrorKind};
 
 /// Parse `!important`.

src/serializer.rs

@@ -4,7 +4,7 @@
 
 use dtoa_short::{self, Notation};
 use itoa;
-use std::ascii::AsciiExt;
+#[allow(unused_imports)] use std::ascii::AsciiExt;
 use std::fmt::{self, Write};
 use std::io;
 use std::str;

src/tokenizer.rs

@@ -6,7 +6,7 @@
 
 use std::ops::Range;
 use std::char;
-use std::ascii::AsciiExt;
+#[allow(unused_imports)] use std::ascii::AsciiExt;
 use std::i32;
 
 use parser::ParserState;