these 2 derivations will be built:
  /nix/store/1jjdp2ibb9s3ijg1qdz9fff7pli48f98-nix-grpc-store-0.2.3.drv
  /nix/store/03ma6dwj197nrr34vii68rrjpd5c7sl4-nix-grpc-store-exit-stress.drv