error[E0038]: the trait `Trait` cannot be made into an object
  --> $DIR/object-unsafe-trait-references-self.rs:6:12
   |
LL | fn bar(x: &dyn Trait) {}
   |            ^^^^^^^^^ `Trait` cannot be made into an object
   |
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>
  --> $DIR/object-unsafe-trait-references-self.rs:2:22
   |
LL | trait Trait {
   |       ----- this trait cannot be made into an object...
LL |     fn baz(&self, _: Self) {}
   |                      ^^^^ ...because method `baz` references the `Self` type in this parameter
LL |     fn bat(&self) -> Self {}
   |                      ^^^^ ...because method `bat` references the `Self` type in its return type
   = help: consider moving `baz` to another trait
   = help: consider moving `bat` to another trait

error[E0038]: the trait `Other` cannot be made into an object
  --> $DIR/object-unsafe-trait-references-self.rs:10:12
   |
LL | fn foo(x: &dyn Other) {}
   |            ^^^^^^^^^ `Other` cannot be made into an object
   |
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>
  --> $DIR/object-unsafe-trait-references-self.rs:8:14
   |
LL | trait Other: Sized {}
   |       -----  ^^^^^ ...because it requires `Self: Sized`
   |       |
   |       this trait cannot be made into an object...

error: aborting due to 2 previous errors

For more information about this error, try `rustc --explain E0038`.