these 2 derivations will be built:
  /nix/store/am55gd4270n26w0fn42xhabvpf7ckagw-nix-grpc-store-0.2.3.drv
  /nix/store/6xyfhs9ck887x6y6pdb5vh8j40976826-nix-grpc-store-dispatcher.drv