this derivation will be built:
  /nix/store/jvrccamf9apx1y9f7a9b0ixpr1zy3prg-inputDerivation-effect-docs.drv
building '/nix/store/jvrccamf9apx1y9f7a9b0ixpr1zy3prg-inputDerivation-effect-docs.drv'...