these 2 derivations will be built:
  /nix/store/fkxp8c1yhzd2wasdvxwwljpkq8nhl2ba-nix-grpc-store-0.1.0-beta.3.drv
  /nix/store/1awq51f1xzg7za7caslqnamspkbmgz79-nix-grpc-store-exit-stress.drv