this derivation will be built:
  /nix/store/fip7vkrqw6fm5g9r2ys5fr0ib4d6gcpz-inputDerivation-effect-docs.drv
building '/nix/store/fip7vkrqw6fm5g9r2ys5fr0ib4d6gcpz-inputDerivation-effect-docs.drv'...