this derivation will be built:
  /nix/store/4bq9dj1087k5vbgd94h6p9cqa8ylfgpg-inputDerivation-effect-docs.drv
building '/nix/store/4bq9dj1087k5vbgd94h6p9cqa8ylfgpg-inputDerivation-effect-docs.drv'...