this derivation will be built:
  /nix/store/p85r6ck7y1bi6nrcwx2nfvsp76jbvb3p-inputDerivation-effect-docs.drv
building '/nix/store/p85r6ck7y1bi6nrcwx2nfvsp76jbvb3p-inputDerivation-effect-docs.drv'...