Installing custom module

Hello guys,

I want to install with aur on arch something, to do that I found this module.
I wanted to install this via ansible, so I wrote this task, but it cause error. I tried also use before module ansible_galaxy_install for that here, but it did not work (it changed but later using this module cause problem).

  1. Why right now it cause problem without running (like error before run) is it syntax problem as well?
  2. Am I doing it right? Maybe I should to install this somehow else?

Thanks in advance,
Simon