this derivation will be built:
  /nix/store/j2r3wqsiz9l73jbz3fdrr5mfv7mjcmzw-inputDerivation-effect-docs.drv
building '/nix/store/j2r3wqsiz9l73jbz3fdrr5mfv7mjcmzw-inputDerivation-effect-docs.drv'...