this derivation will be built:
  /nix/store/pyr9pc8xcndf1k1xvr4lx1382m7x2ynf-inputDerivation-effect-docs.drv
building '/nix/store/pyr9pc8xcndf1k1xvr4lx1382m7x2ynf-inputDerivation-effect-docs.drv'...