these 2 derivations will be built:
  /nix/store/ni9cxjdrq27zwcadr5s51kswq9rc4d1z-nix-grpc-store-0.2.3.drv
  /nix/store/ppph1bg30q3p36g5kd55d5kpv5lpx3rd-nix-grpc-store-exit-stress.drv