these 2 derivations will be built:
  /nix/store/wrbr473bs5qrqsn090hrb233yvdli5d7-nix-grpc-store-0.2.2.drv
  /nix/store/hmwl1381fkmk8lhza8p0f1awnzvdf11g-nix-grpc-store-dispatcher.drv