Function process_results
fn process_results<I, F, T, E, R>(iterable: I, processor: F) -> Result<R, E>
where
I: IntoIterator<Item = Result<T, E>>,
F: FnOnce(ProcessResults<'_, <I as >::IntoIter, E>) -> R
“Lift” a function of the values of an iterator so that it can process
an iterator of Result values instead.
IntoIterator enabled version of Itertools::process_results.