error[E0569]: requires an `unsafe impl` declaration due to `#[may_dangle]` attribute
  --> $DIR/dropck-eyepatch-implies-unsafe-impl.rs:21:1
   |
LL | impl<#[may_dangle] A, B: fmt::Debug> Drop for Pt<A, B> {
   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   |
   = note: the trait `Drop` enforces invariants that the compiler can't check. Review the trait documentation and make sure this implementation upholds those invariants before adding the `unsafe` keyword
help: add `unsafe` to this trait implementation
   |
LL | unsafe impl<#[may_dangle] A, B: fmt::Debug> Drop for Pt<A, B> {
   | ++++++

error[E0569]: requires an `unsafe impl` declaration due to `#[may_dangle]` attribute
  --> $DIR/dropck-eyepatch-implies-unsafe-impl.rs:27:1
   |
LL | impl<#[may_dangle] 'a, 'b, B: fmt::Debug> Drop for Pr<'a, 'b, B> {
   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   |
   = note: the trait `Drop` enforces invariants that the compiler can't check. Review the trait documentation and make sure this implementation upholds those invariants before adding the `unsafe` keyword
help: add `unsafe` to this trait implementation
   |
LL | unsafe impl<#[may_dangle] 'a, 'b, B: fmt::Debug> Drop for Pr<'a, 'b, B> {
   | ++++++

error: aborting due to 2 previous errors

For more information about this error, try `rustc --explain E0569`.