these 2 derivations will be built:
  /nix/store/g3pjc2hqml45cyhrvcb04zhvcbi2spxb-nix-grpc-store-0.1.0.drv
  /nix/store/wdj64gfr6spnk1f7wna98a4p06x3nfyc-nix-grpc-store-exit-stress.drv