error: a trailing `|` is not allowed in an or-pattern
  --> $DIR/issue-64879-trailing-before-guard.rs:12:14
   |
LL |         E::A |
   |         ---- while parsing this or-pattern starting here
LL |         E::B |
   |              ^

error[E0308]: mismatched types
  --> $DIR/issue-64879-trailing-before-guard.rs:14:42
   |
LL |             let _recovery_witness: i32 = 0u32;
   |                                    ---   ^^^^ expected `i32`, found `u32`
   |                                    |
   |                                    expected due to this
   |
help: change the type of the numeric literal from `u32` to `i32`
   |
LL -             let _recovery_witness: i32 = 0u32;
LL +             let _recovery_witness: i32 = 0i32;
   |

error: aborting due to 2 previous errors

For more information about this error, try `rustc --explain E0308`.