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error[E0740]: unions cannot contain fields that may need dropping
--> $DIR/union-with-drop-fields.rs:11:5
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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
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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
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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`.
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