Hi,
it looks like there's an issue with some of the stage2 buildbot configurations. At least the following AArch64 stage-2 bots are failing during cmake for stage2:
https://lab.llvm.org/buildbot/#/builders/41/builds/24 https://lab.llvm.org/buildbot/#/builders/84/builds/62
Both failing with
CMake Error at CMakeLists.txt:425 (message): Unknown value for CMAKE_BUILD_TYPE: {stage2_config}
Cheers, Florian