version bump: 1.0.0 -> (breaking) -> 2.0.0
error: breaking changes in `Abc`
 --> kind_change/new.rs:1:1
  |
1 | / pub enum Abc {
2 | |
3 | | }
  | |_^
  |
  = warning: item kind changed (breaking)

error: aborting due to previous error

