these 2 derivations will be built:
  /nix/store/kninfk9fmcnmf5f974jcvbnr4q3rs8zn-nix-grpc-store-0.1.0.drv
  /nix/store/xk0c52f6yi0j8k0q1hp8n9hzbh5msjbr-nix-grpc-store-exit-stress.drv