| error[E0740]: field must implement `Copy` or be wrapped in `ManuallyDrop<...>` to be used in a union | |
| --> $DIR/issue-41073.rs:2:5 | |
| | | |
| LL | a: A, | |
| | ^^^^ | |
| | | |
| = note: union fields must not have drop side-effects, which is currently enforced via either `Copy` or `ManuallyDrop<...>` | |
| help: wrap the field type in `ManuallyDrop<...>` | |
| | | |
| LL | a: std::mem::ManuallyDrop<A>, | |
| | +++++++++++++++++++++++ + | |
| error: aborting due to 1 previous error | |
| For more information about this error, try `rustc --explain E0740`. |