this derivation will be built:
  /nix/store/c4c0wj3qrh29snq8xmdfgfipgnpy77gc-inputDerivation-effect-docs-preview.drv
building '/nix/store/c4c0wj3qrh29snq8xmdfgfipgnpy77gc-inputDerivation-effect-docs-preview.drv'...