these 2 derivations will be built:
  /nix/store/5ln2pq7wkmr35a3xq8sh9spiirxga2pv-workmux-0.1.233-vendor.drv
  /nix/store/1hsm12jydwvyr3ilb1mg7ihml54rfn47-workmux-0.1.233.drv