2018-08-28 08:00:48,784 [INFO] {19775} koji.build.buildroot:440 Running mock as kojibuilder
INFO: mock.py version 1.4.9 starting (python version = 3.6.4)...
Start: init plugins
INFO: selinux disabled
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: 1.4.9
INFO: Mock Version: 1.4.9
Start: dnf install
Finish: dnf install
Finish: chroot init
INFO: Installed packages:
Finish: run
2018-08-28 08:11:06,597 [INFO] {20110} koji.build.buildroot:440 Running mock as kojibuilder
INFO: mock.py version 1.4.9 starting (python version = 3.6.4)...
Start: init plugins
INFO: selinux disabled
Finish: init plugins
Start: run
INFO: Start(/tmp/koji/tasks/2706/102706/local/work/cli-build/1535390723.9299557.YueplptF/php-horde-horde-lz4-1.0.10-10.fc29.src.rpm)  Config(f29-build-28375-15193)
Start: chroot init
INFO: calling preinit hooks
INFO: enabled HW Info plugin
Mock Version: 1.4.9
INFO: Mock Version: 1.4.9
Finish: chroot init
Start: build phase for php-horde-horde-lz4-1.0.10-10.fc29.src.rpm
Start: build setup for php-horde-horde-lz4-1.0.10-10.fc29.src.rpm
ERROR: Exception(/tmp/koji/tasks/2706/102706/local/work/cli-build/1535390723.9299557.YueplptF/php-horde-horde-lz4-1.0.10-10.fc29.src.rpm) Config(f29-build-28375-15193) 0 minutes 27 seconds
INFO: Results and/or logs in: /var/lib/mock/f29-build-28375-15193/result
ERROR: Command failed: 
 # /usr/bin/dnf builddep --installroot /var/lib/mock/f29-build-28375-15193/root/ /var/lib/mock/f29-build-28375-15193/root//builddir/build/SRPMS/php-horde-horde-lz4-1.0.10-10.fc29.src.rpm
Last metadata expiration check: 0:00:02 ago on Tue 28 Aug 2018 08:11:18 AM UTC.
Error: 
 Problem: package php-phpunit-PHPUnit-5.7.27-1.fc29.2.noarch requires php-mbstring, but none of the providers can be installed
  - conflicting requests
  - nothing provides libonig.so.4()(64bit) needed by php-mbstring-7.2.4~RC1-0.riscv64.fc28.riscv64