this derivation will be built:
  /nix/store/ng90r87v3kvhwi0pm8gaxq6jk3yai5l0-inputDerivation-effect-docs.drv
building '/nix/store/ng90r87v3kvhwi0pm8gaxq6jk3yai5l0-inputDerivation-effect-docs.drv'...