error[E0568]: auto traits cannot have super traits
  --> $DIR/typeck-auto-trait-no-supertraits.rs:28:19
   |
LL | auto trait Magic: Copy {}
   |            -----  ^^^^ help: remove the super traits
   |            |
   |            auto trait cannot have super traits

error: aborting due to previous error

For more information about this error, try `rustc --explain E0568`.