this derivation will be built:
  /nix/store/6i8yk3lp9302x5dckjfi9d04nd6hpd69-inputDerivation-effect-docs.drv
building '/nix/store/6i8yk3lp9302x5dckjfi9d04nd6hpd69-inputDerivation-effect-docs.drv'...