error[E0605]: non-primitive cast: `u8` as `Vec<u8>`
  --> $DIR/E0605.rs:3:5
   |
LL |     x as Vec<u8>;
   |     ^^^^^^^^^^^^ an `as` expression can only be used to convert between primitive types or to coerce to a specific trait object

error[E0605]: non-primitive cast: `*const u8` as `&u8`
  --> $DIR/E0605.rs:6:5
   |
LL |     v as &u8;
   |     ^^^^^^^^ invalid cast
   |
help: consider borrowing the value
   |
LL -     v as &u8;
LL +     &*v;
   |

error: aborting due to 2 previous errors

For more information about this error, try `rustc --explain E0605`.