error: usage of `outer_expn().expn_info()`
  --> $DIR/outer_expn_info.rs:19:33
   |
LL |         let _ = expr.span.ctxt().outer_expn().expn_info();
   |                                 ^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `.outer_expn_info()`
   |
note: lint level defined here
  --> $DIR/outer_expn_info.rs:1:9
   |
LL | #![deny(clippy::internal)]
   |         ^^^^^^^^^^^^^^^^
   = note: `#[deny(clippy::outer_expn_expn_info)]` implied by `#[deny(clippy::internal)]`

error: aborting due to previous error