these 2 derivations will be built:
  /nix/store/8hhaczbm3bpd2r6nwix031nh7k3cia8f-nix-grpc-store-0.2.3.drv
  /nix/store/jxz914m5bramrcixrnydr8f0vqvdadap-nix-grpc-store-exit-stress.drv