src/test/ui/union/union-unsized.mirunsafeck.stderr

   1 error[E0277]: the size for values of type `str` cannot be known at compilation time
   2   --> $DIR/union-unsized.rs:5:8
   3    |
   4 LL |     a: str,
   5    |        ^^^ doesn't have a size known at compile-time
   6    |
   7    = help: the trait `Sized` is not implemented for `str`
   8    = note: no field of a union may have a dynamically sized type
   9    = help: change the field's type to have a statically known size
  10 help: borrowed types always have a statically known size
  11    |
  12 LL |     a: &str,
  13    |        +
  14 help: the `Box` type always has a statically known size and allocates its contents in the heap
  15    |
  16 LL |     a: Box<str>,
  17    |        ++++   +
  18
  19 error[E0277]: the size for values of type `str` cannot be known at compilation time
  20   --> $DIR/union-unsized.rs:13:8
  21    |
  22 LL |     b: str,
  23    |        ^^^ doesn't have a size known at compile-time
  24    |
  25    = help: the trait `Sized` is not implemented for `str`
  26    = note: no field of a union may have a dynamically sized type
  27    = help: change the field's type to have a statically known size
  28 help: borrowed types always have a statically known size
  29    |
  30 LL |     b: &str,
  31    |        +
  32 help: the `Box` type always has a statically known size and allocates its contents in the heap
  33    |
  34 LL |     b: Box<str>,
  35    |        ++++   +
  36
  37 error: aborting due to 2 previous errors
  38
  39 For more information about this error, try `rustc --explain E0277`.