this derivation will be built:
  /nix/store/baz7pds1fmfjnxj9c1bkbgpvcn1iwd6n-inputDerivation-effect-docs.drv
building '/nix/store/baz7pds1fmfjnxj9c1bkbgpvcn1iwd6n-inputDerivation-effect-docs.drv'...