this derivation will be built:
  /nix/store/mq0dbak4hyjbfshcbz4c8626a3w5mkhm-inputDerivation-effect-docs.drv
building '/nix/store/mq0dbak4hyjbfshcbz4c8626a3w5mkhm-inputDerivation-effect-docs.drv'...