these 2 derivations will be built:
  /nix/store/kd4in8vhzmfd4s2n669vv7s3ryx54jvk-nix-grpc-store-0.2.3.drv
  /nix/store/bay0ms8hi4yqvlflzkrm8n24abz8xfvy-nix-grpc-store-exit-stress.drv