This addresses reviewer feedback on #180102. We've seen ``` error: No debug information found in function _ZNSt4__Cr6vectorIN4bssl3der5InputENS_9allocatorIS3_EEE14__swap_layoutsERNS_14__split_bufferIS3_S5_NS_29__split_buffer_pointer_layoutEEE: Function profile not used [-Werror,-Wbackend-plugin] ``` on an internal bot due to the _LIBCPP_NODEBUG.