2019-08-15 08:08:59,509 [INFO] {23629} koji.build.buildroot:505 Running mock as kojibuilder
INFO: mock.py version 1.4.14 starting (python version = 3.7.3)...
Start: init plugins
INFO: selinux enabled
Finish: init plugins
Start: run
Start: clean chroot
Finish: clean chroot
Start: chroot init
INFO: calling preinit hooks
INFO: enabled HW Info plugin
Mock Version: 1.4.14
INFO: Mock Version: 1.4.14
Start: dnf install
Finish: dnf install
Finish: chroot init
INFO: Installed packages:
Finish: run
2019-08-15 08:29:58,697 [INFO] {23949} koji.build.buildroot:505 Running mock as kojibuilder
INFO: mock.py version 1.4.14 starting (python version = 3.7.3)...
Start: init plugins
INFO: selinux enabled
Finish: init plugins
Start: run
INFO: Start(/tmp/koji/tasks/1968/271968/local/work/tasks/1850/271850/librepo-1.10.5-1.fc31.src.rpm)  Config(f31-build-94700-32497)
Start: chroot init
INFO: calling preinit hooks
INFO: enabled HW Info plugin
Mock Version: 1.4.14
INFO: Mock Version: 1.4.14
ERROR: Exception(/tmp/koji/tasks/1968/271968/local/work/tasks/1850/271850/librepo-1.10.5-1.fc31.src.rpm) Config(f31-build-94700-32497) 0 minutes 31 seconds
INFO: Results and/or logs in: /var/lib/mock/f31-build-94700-32497/result
ERROR: Command failed: 
 # /usr/sbin/groupadd -g 135 mock