Transient failure on sanitizer-x86_64-linux

This bot was failing from
http://lab.llvm.org:8011/builders/sanitizer-x86_64-linux/builds/29505
until it went green on
http://lab.llvm.org:8011/builders/sanitizer-x86_64-linux/builds/29534

Anyone happen to know why? I can’t quite figure it out from the commits - would be good to know if it’s a buildbot issue or a genuine LLVM problem that was in the LLVM code and fixed by one of those commits.

Actually it’s broken from http://lab.llvm.org:8011/builders/sanitizer-x86_64-linux/builds/29475
I think it’s broken by b22910daab95be1ebc6ab8a74190e38130b0e6ef and fixed by 4e413e16216d0c94ada2171f3c59e0a85f4fa4b6

http://lab.llvm.org:8011/builders/sanitizer-x86_64-linux/builds/29504 is just a manual rerun on an older revision.

See also https://bugs.llvm.org/show_bug.cgi?id=47480 for the specific issue that affected the buildbot, and https://reviews.llvm.org/D87149 for a wider discussion.

Regards,

Nikita