pungi.global.log
[IMAGE_BUILD ] [INFO ] [FAIL] Image build (variant Cloud, arch *, subvariant Cloud_Base) failed, but going on anyway. [IMAGE_BUILD ] [INFO ] ImageBuild task failed: 25858017. See /mnt/koji/compose/branched/Fedora-28-20180321.n.0/logs/x86_64/imagebuild-Cloud-Cloud_Base-vagrant-libvirt-vagrant-virtualbox.x86_64.log for more details.
we keep seeing intermittent errors for:
Original error from libvirt: File exists [code=89 int1=0]
Here is another example. Probably will have to open an issue somewhere for it soon.
https://pagure.io/releng/issue/7408