//@ check-fail #![feature(auto_traits)] #![deny(where_clauses_object_safety)] auto trait AutoTrait {} trait Trait { fn static_lifetime_bound(&self) where Self: 'static {} fn arg_lifetime_bound<'a>(&self, _arg: &'a ()) where Self: 'a {} fn autotrait_bound(&self) where Self: AutoTrait {} } impl Trait for () {} fn main() { let trait_object = &() as &dyn Trait; trait_object.static_lifetime_bound(); trait_object.arg_lifetime_bound(&()); trait_object.autotrait_bound(); //~ ERROR: the trait bound `dyn Trait: AutoTrait` is not satisfied }