these 2 derivations will be built:
  /nix/store/ik1x3y62d8cvc96zxyqdvvmpgg0gnc07-nix-grpc-store-0.2.3.drv
  /nix/store/qp9ghhg7vhn3cnapwjlns6324rdbwzzc-nix-grpc-store-dispatcher.drv