these 2 derivations will be built:
  /nix/store/zjps5p1aazwzpcmm9d76bkdx6zmsa5bb-nix-grpc-store-0.2.2.drv
  /nix/store/d9dxfc96vcwnybx7miybyhljka6i2m2k-nix-grpc-store-dispatcher.drv