this derivation will be built:
  /nix/store/10gzydxwx4mvc40cq74v5yb5jv36a2x8-inputDerivation-effect-docs-pages.drv
building '/nix/store/10gzydxwx4mvc40cq74v5yb5jv36a2x8-inputDerivation-effect-docs-pages.drv'...