MarsSeed [1] filed a deletion request for vineyard [2]: Last release was almost 5 years ago on this Python2-based Wineprefix manager. It is not recommended to use anymore, development was completely halted and there are many up-to-date solutions for managing Wineprefixes (like Bottles or Lutris). Also its depends= seem quite nonsensical to me, as it relies on "python2-wine", which it seems is only provided by this same package's -git version (vineyard-git), which also conflicts with it.
[1] https://aur.archlinux.org/account/MarsSeed/ [2] https://aur.archlinux.org/pkgbase/vineyard/
