use rustc_span::{BytePos, FileName, RealFileName, Span, DUMMY_SP};
use smallvec::{smallvec, SmallVec};
-use std::default::Default;
use std::iter;
use std::path::PathBuf;
use std::rc::Rc;
Err(match expr.kind {
ast::ExprKind::Lit(token_lit) => match ast::LitKind::from_token_lit(token_lit) {
Ok(ast::LitKind::Str(s, style)) => return Ok((s, style, expr.span)),
- Ok(ast::LitKind::ByteStr(_)) => {
+ Ok(ast::LitKind::ByteStr(..)) => {
let mut err = cx.struct_span_err(expr.span, err_msg);
let span = expr.span.shrink_to_lo();
err.span_suggestion(