these 2 derivations will be built:
  /nix/store/77566fwmmvsw19gm697zvy5jm6v8nd73-nix-grpc-store-0.1.0.drv
  /nix/store/xy5dp424p541gxkrffplb5sgzb77rdm9-nix-grpc-store-exit-stress.drv