error: ['a: *, 'a: o]
  --> $DIR/variance.rs:14:36
   |
LL | fn not_captured_early<'a: 'a>() -> impl Sized {}
   |                                    ^^^^^^^^^^

error: ['a: *, 'a: o]
  --> $DIR/variance.rs:19:32
   |
LL | fn captured_early<'a: 'a>() -> impl Sized + Captures<'a> {}
   |                                ^^^^^^^^^^^^^^^^^^^^^^^^^

error: ['a: o]
  --> $DIR/variance.rs:21:40
   |
LL | fn not_captured_late<'a>(_: &'a ()) -> impl Sized {}
   |                                        ^^^^^^^^^^

error: ['a: o]
  --> $DIR/variance.rs:26:36
   |
LL | fn captured_late<'a>(_: &'a ()) -> impl Sized + Captures<'a> {}
   |                                    ^^^^^^^^^^^^^^^^^^^^^^^^^

error: aborting due to 4 previous errors