Ignore explicit_auto_deref clippy lint

    error: deref which would be done by auto-deref
      --> src/expand.rs:85:43
       |
    85 |             lifetimes.visit_type_mut(&mut *input.self_ty);
       |                                           ^^^^^^^^^^^^^^ help: try this: `input.self_ty`
       |
       = note: `-D clippy::explicit-auto-deref` implied by `-D clippy::all`
       = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#explicit_auto_deref

Author: dtolnay

src/lib.rs

@@ -306,6 +306,7 @@
 #![allow(
     clippy::default_trait_access,
     clippy::doc_markdown,
+    clippy::explicit_auto_deref,
     clippy::if_not_else,
     clippy::items_after_statements,
     clippy::module_name_repetitions,