this derivation will be built:
  /nix/store/a5s3vwnsmb2bayavbrv8hi3yb6x6k5pj-inputDerivation-effect-docs.drv
building '/nix/store/a5s3vwnsmb2bayavbrv8hi3yb6x6k5pj-inputDerivation-effect-docs.drv'...