| error[E0740]: unions cannot contain fields that may need dropping |
| --> $DIR/union-with-drop-fields.rs:11:5 |
| | |
| LL | a: String, |
| | ^^^^^^^^^ |
| | |
| = note: a type is guaranteed not to need dropping when it implements `Copy`, or when it is the special `ManuallyDrop<_>` type |
| help: when the type does not implement `Copy`, wrap it inside a `ManuallyDrop<_>` and ensure it is manually dropped |
| | |
| LL | a: std::mem::ManuallyDrop<String>, |
| | +++++++++++++++++++++++ + |
| |
| error[E0740]: unions cannot contain fields that may need dropping |
| --> $DIR/union-with-drop-fields.rs:19:5 |
| | |
| LL | a: S, |
| | ^^^^ |
| | |
| = note: a type is guaranteed not to need dropping when it implements `Copy`, or when it is the special `ManuallyDrop<_>` type |
| help: when the type does not implement `Copy`, wrap it inside a `ManuallyDrop<_>` and ensure it is manually dropped |
| | |
| LL | a: std::mem::ManuallyDrop<S>, |
| | +++++++++++++++++++++++ + |
| |
| error[E0740]: unions cannot contain fields that may need dropping |
| --> $DIR/union-with-drop-fields.rs:24:5 |
| | |
| LL | a: T, |
| | ^^^^ |
| | |
| = note: a type is guaranteed not to need dropping when it implements `Copy`, or when it is the special `ManuallyDrop<_>` type |
| help: when the type does not implement `Copy`, wrap it inside a `ManuallyDrop<_>` and ensure it is manually dropped |
| | |
| LL | a: std::mem::ManuallyDrop<T>, |
| | +++++++++++++++++++++++ + |
| |
| error: aborting due to 3 previous errors |
| |
| For more information about this error, try `rustc --explain E0740`. |
