breaks multiple bots https://lab.llvm.org/buildbot/#/builders/127/builds/60782 https://lab.llvm.org/buildbot/#/builders/37/builds/29846 https://lab.llvm.org/buildbot/#/builders/168/builds/17995 https://lab.llvm.org/buildbot/#/builders/74/builds/24924 https://lab.llvm.org/buildbot/#/builders/85/builds/21537