error[E0785]: cannot define inherent `impl` for a dyn auto trait
  --> $DIR/issue-85026.rs:5:6
   |
LL | impl dyn AutoTrait {}
   |      ^^^^^^^^^^^^^ impl requires at least one non-auto trait
   |
   = note: define and implement a new trait or type instead

error[E0785]: cannot define inherent `impl` for a dyn auto trait
  --> $DIR/issue-85026.rs:8:6
   |
LL | impl dyn Unpin {}
   |      ^^^^^^^^^ impl requires at least one non-auto trait
   |
   = note: define and implement a new trait or type instead

error: aborting due to 2 previous errors

For more information about this error, try `rustc --explain E0785`.