these 2 derivations will be built:
  /nix/store/r6y19avs2cfvpm8qa7ihynwgjnpl2xaw-nix-grpc-store-0.2.3.drv
  /nix/store/08c8vjj22h5m75fpby458xiiznf76wnh-nix-grpc-store-exit-stress.drv