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#![feature(auto_traits)]
#![feature(negative_impls)]
#![allow(bare_trait_objects)]
auto trait Auto {}
fn main() {
let _: Box<((Auto)) + Auto>;
//~^ ERROR expected a path on the left-hand side of `+`, not `((Auto))`
let _: Box<(Auto + Auto) + Auto>;
//~^ ERROR expected a path on the left-hand side of `+`, not `(Auto + Auto)`
let _: Box<(Auto +) + Auto>;
//~^ ERROR expected a path on the left-hand side of `+`, not `(Auto)`
let _: Box<(dyn Auto) + Auto>;
//~^ ERROR expected a path on the left-hand side of `+`, not `(dyn Auto)`
}
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