Split x86_64-msvc-ext into two jobs This is an attempt to mitigate (but not resolve) the high failure rate of the x86_64-msvc-ext builder. The theory being that doing less makes it less likely to fail. But this may not work as having an extra job that may fail might be worse. try-job: x86_64-msvc-ext try-job: x86_64-msvc-ext2