pungi.global.log
[ERROR ] Compose run failed: ImageBuild task failed: 27384672. See /mnt/koji/compose/cloud/Fedora-Cloud-28-20180603.0/logs/aarch64-ppc64-ppc64le-s390x-x86_64/imagebuild-Cloud-Cloud_Base-qcow2-raw-xz.aarch64-ppc64-ppc64le-s390x-x86_64.log for more details.
See https://pagure.io/fedora-infrastructure/issue/7007#comment-515086
Builder buildvm-ppc64-01.ppc.fedoraproject.org seems to have updated kojid config. We have successful F28 cloud compose in 20180604.0 on ppc64 which is using ppc64-01 builder.