FredBezies  filed a orphan request for watchman-git :
This package was not updated for the last two years or so. Cannot be built without some modifications.
Made 2 comments with updated and working PKGBUILD back in december of 2017 and none were taken into account.
Providing a third working and updated PKGUILD today (november 27th, 2018)
If maintainer doesn't take it into account, I'll be happy to adopt this package.
 https://aur.archlinux.org/account/FredBezies/  https://aur.archlinux.org/pkgbase/watchman-git/
Request #13391 has been rejected by polyzen .