these 2 derivations will be built:
  /nix/store/qm7vvmbc2v01s84c179ln9l0xbgxlb4z-nix-grpc-store-0.2.3.drv
  /nix/store/2wsydjb7sa2b63z8slzqd2ylap2ks59l-nix-grpc-store-dispatcher.drv