these 2 derivations will be built:
  /nix/store/smy02jv0j5z6lkfqp73q6yjqwgaq1xmd-nix-grpc-store-0.2.3.drv
  /nix/store/ij0czjbg9c9rhc43dbx92s1rq5v7zmyj-nix-grpc-store-exit-stress.drv