these 2 derivations will be built:
  /nix/store/3rqm8z0kywyfjjqzrj1r54wjfkaf47ly-nix-grpc-store-0.1.0-beta.4.drv
  /nix/store/r2sqlmpq2aw29vrfm28r820xcly3vdgk-nix-grpc-store-dispatcher.drv