| error[E0277]: the size for values of type `T` cannot be known at compilation time |
| --> $DIR/issue-27060-2.rs:3:11 |
| | |
| LL | pub struct Bad<T: ?Sized> { |
| | - this type parameter needs to be `Sized` |
| LL | data: T, |
| | ^ doesn't have a size known at compile-time |
| | |
| = note: the last field of a packed struct may only have a dynamically sized type if it does not need drop to be run |
| = help: change the field's type to have a statically known size |
| help: consider removing the `?Sized` bound to make the type parameter `Sized` |
| | |
| LL - pub struct Bad<T: ?Sized> { |
| LL + pub struct Bad<T> { |
| | |
| help: borrowed types always have a statically known size |
| | |
| LL | data: &T, |
| | + |
| help: the `Box` type always has a statically known size and allocates its contents in the heap |
| | |
| LL | data: Box<T>, |
| | ++++ + |
| |
| error: aborting due to 1 previous error |
| |
| For more information about this error, try `rustc --explain E0277`. |