error[E0277]: the size for values of type `[u8]` cannot be known at compilation time
 --> tests/ui/dst-before-trivial.rs:7:12
  |
7 |     bytes: [u8],
  |            ^^^^ doesn't have a size known at compile-time
  |
  = help: the trait `Sized` is not implemented for `[u8]`
  = 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: borrowed types always have a statically known size
  |
7 |     bytes: &[u8],
  |            +
help: the `Box` type always has a statically known size and allocates its contents in the heap
  |
7 |     bytes: Box<[u8]>,
  |            ++++    +