| error[E0277]: the size for values of type `V` cannot be known at compilation time |
| --> $DIR/issue-unsized-tail-restatic-ice-122488.rs:5:61 |
| | |
| LL | struct ArenaSet<U: Deref, V: ?Sized = <U as Deref>::Target>(V, U); |
| | -------------------------------- ^ doesn't have a size known at compile-time |
| | | |
| | this type parameter needs to be `Sized` |
| | |
| = note: only the last field of a struct may have a dynamically sized type |
| = 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 - struct ArenaSet<U: Deref, V: ?Sized = <U as Deref>::Target>(V, U); |
| LL + struct ArenaSet<U: Deref, V = <U as Deref>::Target>(V, U); |
| | |
| help: borrowed types always have a statically known size |
| | |
| LL | struct ArenaSet<U: Deref, V: ?Sized = <U as Deref>::Target>(&V, U); |
| | + |
| help: the `Box` type always has a statically known size and allocates its contents in the heap |
| | |
| LL | struct ArenaSet<U: Deref, V: ?Sized = <U as Deref>::Target>(Box<V>, U); |
| | ++++ + |
| |
| error: aborting due to 1 previous error |
| |
| For more information about this error, try `rustc --explain E0277`. |
