these 2 derivations will be built:
  /nix/store/vy40yf985p2wy1p47mfms2xbadwbnfg3-nix-grpc-store-0.2.3.drv
  /nix/store/zr22v3fz0jnkviycgf2ddv7a22yxa8si-nix-grpc-store-dispatcher.drv