this derivation will be built:
  /nix/store/nbv9chp16z6lv6wh1dyyjxw53ld3d2qd-inputDerivation-effect-docs.drv
building '/nix/store/nbv9chp16z6lv6wh1dyyjxw53ld3d2qd-inputDerivation-effect-docs.drv'...