these 2 derivations will be built:
  /nix/store/gb4xmzdajjs15dik4rj5ijybqxalsffm-nix-grpc-store-0.2.2.drv
  /nix/store/426zdn9pllpw3l3ijdk8778b98ybadlh-nix-grpc-store-dispatcher.drv