Try to specifically request return value from ctest_test

scripts/dashboard/common.cmake

@@ -393,7 +393,8 @@ if(dashboard_do_test)
     dashboard_hook_test()
   endif()
   message("Calling ctest_test")
-  ctest_test(${CTEST_TEST_ARGS})
+  ctest_test(${CTEST_TEST_ARGS} RETURN_VALUE TEST_RESULTS)
+  message("ctest test results return value: ${TEST_RESULTS}")
   ctest_submit(PARTS Test)
 endif()