this derivation will be built:
  /nix/store/xw8rf0pcvkdn9ybp5b4wh95wab2y62zq-inputDerivation-effect-docs.drv
building '/nix/store/xw8rf0pcvkdn9ybp5b4wh95wab2y62zq-inputDerivation-effect-docs.drv'...