^CMake Error at .*/Tests/RunCMake/try_compile/CStandard-build/CMakeFiles/CMake(Tmp|Scratch/TryCompile-[^/]+)/CMakeLists\.txt:[0-9]+ \(add_executable\):
  C_STANDARD is set to invalid value '3'
+
CMake Error at CStandard\.cmake:[0-9]+ \(try_compile\):
  Failed to generate test project build system\.
Call Stack \(most recent call first\):
  CMakeLists\.txt:[0-9]+ \(include\)$
