src/test/ui/issues/issue-50781.stderr

   1 error: the trait `X` cannot be made into an object
   2   --> $DIR/issue-50781.rs:6:8
   3    |
   4 LL |     fn foo(&self) where Self: Trait;
   5    |        ^^^
   6    |
   7    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
   8    = note: for more information, see issue #51443 <https://github.com/rust-lang/rust/issues/51443>
   9 note: for a trait to be "object safe" it needs to allow building a vtable to allow the call to be resolvable dynamically; for more information visit <https://doc.rust-lang.org/reference/items/traits.html#object-safety>
  10   --> $DIR/issue-50781.rs:6:8
  11    |
  12 LL | trait X {
  13    |       - this trait cannot be made into an object...
  14 LL |     fn foo(&self) where Self: Trait;
  15    |        ^^^ ...because method `foo` references the `Self` type in its `where` clause
  16    = help: consider moving `foo` to another trait
  17 note: the lint level is defined here
  18   --> $DIR/issue-50781.rs:1:9
  19    |
  20 LL | #![deny(where_clauses_object_safety)]
  21    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^
  22
  23 error: aborting due to previous error
  24