error[E0785]: cannot define inherent `impl` for a dyn auto trait --> $DIR/issue-85026.rs:5:1 | 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:8:1 | 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`.