Function try_build_in_memory_sample_sort 

pub fn try_build_in_memory_sample_sort<S, E, F>(
    text: &[S],
    opts: &ExtMemOpts,
    emit: F,
) -> Result<(), BuildError<E>>
where
    S: Symbol,
    F: FnMut(u64) -> Result<(), E>,

Generic-error variant of build_in_memory_sample_sort.