| error[E0277]: the trait bound `UnsafeEnum: UnsafeAuto` is not satisfied | 
 |   --> $DIR/auto-traits.rs:24:22 | 
 |    | | 
 | LL |     impl_unsafe_auto(UnsafeEnum::Safe(42)); | 
 |    |     ---------------- ^^^^^^^^^^^^^^^^^^^^ unsatisfied trait bound | 
 |    |     | | 
 |    |     required by a bound introduced by this call | 
 |    | | 
 | help: the trait `UnsafeAuto` is not implemented for `UnsafeEnum` | 
 |   --> $DIR/auto-traits.rs:9:1 | 
 |    | | 
 | LL | enum UnsafeEnum { | 
 |    | ^^^^^^^^^^^^^^^ | 
 | note: required by a bound in `impl_unsafe_auto` | 
 |   --> $DIR/auto-traits.rs:20:29 | 
 |    | | 
 | LL | fn impl_unsafe_auto(_: impl UnsafeAuto) {} | 
 |    |                             ^^^^^^^^^^ required by this bound in `impl_unsafe_auto` | 
 |  | 
 | error: aborting due to 1 previous error | 
 |  | 
 | For more information about this error, try `rustc --explain E0277`. |