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use std::cell::Cell;
use std::rc::Rc;
fn send<T: Send>(_: T) {}
fn main() {
}
// Cycles should work as the deferred obligations are
// independently resolved and only require the concrete
// return type, which can't depend on the obligation.
fn cycle1() -> impl Clone {
//~^ ERROR cycle detected
send(cycle2().clone());
Rc::new(Cell::new(5))
}
fn cycle2() -> impl Clone {
send(cycle1().clone());
Rc::new(String::from("foo"))
}
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