Function capt_6 

pub fn capt_6<C, T0, T1, T2, T3, T4, T5, R, F>(
    c: C,
    f: F,
) -> impl Fn(T0, T1, T2, T3, T4, T5)
where
    F: Fn(&C, T0, T1, T2, T3, T4, T5) -> R,

Manually capture the variables required by the closure