SamLukeYes [1] filed a deletion request for deepin-udis86 [2]:

This package was deleted because it didn't follow package guidelines. If the 32-bit binary package from deepin is really needed, it should be named as lib32-udis86-deepin-bin, and avoid the conflict to the 64-bit package udis86. deepin-udis86 should only exist as a string in provides for backward compatibility, since there are packages depending on this name, which is not correct.

[1] https://aur.archlinux.org/account/SamLukeYes/ [2] https://aur.archlinux.org/pkgbase/deepin-udis86/