these 2 derivations will be built:
  /nix/store/s0k6hvn37xbk1gazygrcff0z5jlnvrs5-vix-0.6.1.drv
  /nix/store/w7myhmkbqh3z5kxqjyy68i6r2hg31w93-check-vix.drv
warning: SQLite database '/nix/var/nix/db/db.sqlite' is busy