fn to_fn_once<F: FnOnce()>(f: F) -> F {
    f
}

fn f<T: std::fmt::Display>(y: T) {
    struct Foo<U: std::fmt::Display> {
        x: U,
    };

    let foo = Foo { x: "x" };

    let c = to_fn_once(move || {
        println!("{} {}", foo.x, y);
    });

    c();
    c();
    //~^ ERROR use of moved value
}

fn main() {
    f("S");
}