these 2 derivations will be built:
  /nix/store/4wnc053vc0vvi84sy2cxsx4f4clpy681-workmux-0.1.248-vendor.drv
  /nix/store/6zanfphnql6b1wra7fdmv9j8x2qfjc18-workmux-0.1.248.drv