error[E0507]: cannot move out of `*u.a` which is behind a shared reference
  --> $DIR/move-from-union-field-issue-66500.rs:12:5
   |
LL |     *u.a
   |     ^^^^ move occurs because `*u.a` has type `String`, which does not implement the `Copy` trait

error[E0507]: cannot move out of `*u.b` which is behind a mutable reference
  --> $DIR/move-from-union-field-issue-66500.rs:16:5
   |
LL |     *u.b
   |     ^^^^ move occurs because `*u.b` has type `String`, which does not implement the `Copy` trait

error[E0507]: cannot move out of `*u.c` which is behind a raw pointer
  --> $DIR/move-from-union-field-issue-66500.rs:20:5
   |
LL |     *u.c
   |     ^^^^ move occurs because `*u.c` has type `String`, which does not implement the `Copy` trait

error[E0507]: cannot move out of `*u.d` which is behind a raw pointer
  --> $DIR/move-from-union-field-issue-66500.rs:24:5
   |
LL |     *u.d
   |     ^^^^ move occurs because `*u.d` has type `String`, which does not implement the `Copy` trait

error: aborting due to 4 previous errors

For more information about this error, try `rustc --explain E0507`.