src/test/ui/issues/issue-18107.stderr

   1 error[E0746]: return type cannot have an unboxed trait object
   2   --> $DIR/issue-18107.rs:4:5
   3    |
   4 LL |     dyn AbstractRenderer
   5    |     ^^^^^^^^^^^^^^^^^^^^ doesn't have a size known at compile-time
   6    |
   7 help: use some type `T` that is `T: Sized` as the return type if all return paths have the same type
   8    |
   9 LL |     T
  10    |
  11 help: use `impl AbstractRenderer` as the return type if all return paths have the same type but you want to expose only the trait in the signature
  12    |
  13 LL |     impl AbstractRenderer
  14    |
  15 help: use a boxed trait object if all return paths implement trait `AbstractRenderer`
  16    |
  17 LL |     Box<dyn AbstractRenderer>
  18    |
  19
  20 error: aborting due to previous error
  21
  22 For more information about this error, try `rustc --explain E0746`.