src/test/ui/typeck/typeck-default-trait-impl-assoc-type.rs

// Test that we do not consider associated types to be sendable without
// some applicable trait bound (and we don't ICE).

trait Trait {
    type AssocType;
    fn dummy(&self) { }
}
fn bar<T:Trait+Send>() {
    is_send::<T::AssocType>(); //~ ERROR E0277
}

fn is_send<T:Send>() {
}

fn main() { }