/usr/include/corvusoft/ is in librestbed-dev 4.0~dfsg1-5build1.
This file is owned by root:root, with mode 0o755.
..
/usr/include/corvusoft/restbed/
/usr/include/corvusoft/restbed/byte.hpp
/usr/include/corvusoft/restbed/context_placeholder.hpp
/usr/include/corvusoft/restbed/context_placeholder_base.hpp
/usr/include/corvusoft/restbed/context_value.hpp
/usr/include/corvusoft/restbed/http.hpp
/usr/include/corvusoft/restbed/logger.hpp
/usr/include/corvusoft/restbed/request.hpp
/usr/include/corvusoft/restbed/resource.hpp
/usr/include/corvusoft/restbed/response.hpp
/usr/include/corvusoft/restbed/rule.hpp
/usr/include/corvusoft/restbed/service.hpp
/usr/include/corvusoft/restbed/session.hpp
/usr/include/corvusoft/restbed/session_manager.hpp
/usr/include/corvusoft/restbed/settings.hpp
/usr/include/corvusoft/restbed/ssl_settings.hpp
/usr/include/corvusoft/restbed/status_code.hpp
/usr/include/corvusoft/restbed/string.hpp
/usr/include/corvusoft/restbed/uri.hpp