error[E0567]: auto traits cannot have generic parameters
  --> $DIR/issue-117789.rs:1:17
   |
LL | auto trait Trait<P> {}
   |            -----^^^ help: remove the parameters
   |            |
   |            auto trait cannot have generic parameters

error[E0658]: auto traits are experimental and possibly buggy
  --> $DIR/issue-117789.rs:1:1
   |
LL | auto trait Trait<P> {}
   | ^^^^^^^^^^^^^^^^^^^^^^
   |
   = note: see issue #13231 <https://github.com/rust-lang/rust/issues/13231> for more information
   = help: add `#![feature(auto_traits)]` to the crate attributes to enable
   = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date

error: aborting due to 2 previous errors

Some errors have detailed explanations: E0567, E0658.
For more information about an error, try `rustc --explain E0567`.