diff --git a/libcxx/include/__functional/invoke.h b/libcxx/include/__functional/invoke.h
--- a/libcxx/include/__functional/invoke.h
+++ b/libcxx/include/__functional/invoke.h
@@ -428,15 +428,23 @@
     template <class _Tp>
     static void __test_noexcept(_Tp) _NOEXCEPT;
 
+#ifdef _LIBCPP_CXX03_LANG
+    static const bool value = false;
+#else
     static const bool value = noexcept(_ThisT::__test_noexcept<_Ret>(
         _VSTD::__invoke(declval<_Fp>(), declval<_Args>()...)));
+#endif
 };
 
 template <class _Ret, class _Fp, class ..._Args>
 struct __nothrow_invokable_r_imp<true, true, _Ret, _Fp, _Args...>
 {
+#ifdef _LIBCPP_CXX03_LANG
+    static const bool value = false;
+#else
     static const bool value = noexcept(
         _VSTD::__invoke(declval<_Fp>(), declval<_Args>()...));
+#endif
 };
 
 template <class _Ret, class _Fp, class ..._Args>
diff --git a/libcxx/utils/ci/run-buildbot b/libcxx/utils/ci/run-buildbot
--- a/libcxx/utils/ci/run-buildbot
+++ b/libcxx/utils/ci/run-buildbot
@@ -226,9 +226,8 @@
 #
 generic-cxx03)
     clean
-    generate-cmake -C "${MONOREPO_ROOT}/libcxx/cmake/caches/Generic-cxx03.cmake"
-    #generate-cmake -C "${MONOREPO_ROOT}/libcxx/cmake/caches/Generic-cxx03.cmake" \
-    #               -DLIBCXX_ENABLE_CLANG_TIDY=ON
+    generate-cmake -C "${MONOREPO_ROOT}/libcxx/cmake/caches/Generic-cxx03.cmake" \
+                   -DLIBCXX_ENABLE_CLANG_TIDY=ON
     check-runtimes
     check-abi-list
 ;;