error: the following explicit lifetimes could be elided: 'a
  --> src/lib.rs:46:6
   |
46 | impl<'a> Default for FormatOptions<'a> {
   |      ^^                            ^^
   |
   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_lifetimes
   = note: `-D clippy::needless-lifetimes` implied by `-D warnings`
   = help: to override `-D warnings` add `#[allow(clippy::needless_lifetimes)]`
help: elide the lifetimes
   |
46 - impl<'a> Default for FormatOptions<'a> {
46 + impl Default for FormatOptions<'_> {
   |

error: elided lifetime has a name
   --> src/tokenizer.rs:481:46
    |
479 | fn get_top_level_reserved_token<'a>(
    |                                 -- lifetime `'a` declared here
480 |     last_reserved_top_level_token: Option<Token<'a>>,
481 | ) -> impl FnMut(&'a str) -> IResult<&'a str, Token> {
    |                                              ^^^^^ this elided lifetime gets resolved as `'a`
    |
    = note: `-D elided-named-lifetimes` implied by `-D warnings`
    = help: to override `-D warnings` add `#[allow(elided_named_lifetimes)]`