these 2 derivations will be built:
  /nix/store/wz4jncjk6vifyymxql57zmmk1d48hjn2-nix-grpc-store-0.1.0-beta.1.drv
  /nix/store/5s3nwy2khg6ni2k7jrffiq0i0m9vyr7f-nix-grpc-store-exit-stress.drv