these 2 derivations will be built:
  /nix/store/mkyblcszcxam9v1jndsb78dd4zmil864-nix-grpc-store-0.1.0-beta.4.drv
  /nix/store/fwk3f596anz5cl705igi74vzdbiwplb2-nix-grpc-store-exit-stress.drv