2018-06-19 06:29:48,773 [INFO] {6897} 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
2018-06-19 07:21:43,732 [INFO] {8156} 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/2458/42458/local/work/cli-build/1529322200.9515707.uPSmJcDx/php-pecl-ds-1.2.6-1.fc29.src.rpm)  Config(f29-build-12837-5842)
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-pecl-ds-1.2.6-1.fc29.src.rpm
Start: build setup for php-pecl-ds-1.2.6-1.fc29.src.rpm
ERROR: Exception(/tmp/koji/tasks/2458/42458/local/work/cli-build/1529322200.9515707.uPSmJcDx/php-pecl-ds-1.2.6-1.fc29.src.rpm) Config(f29-build-12837-5842) 3 minutes 32 seconds
INFO: Results and/or logs in: /var/lib/mock/f29-build-12837-5842/result
ERROR: Command failed: 
 # /usr/bin/dnf builddep --installroot /var/lib/mock/f29-build-12837-5842/root/ /var/lib/mock/f29-build-12837-5842/root//builddir/build/SRPMS/php-pecl-ds-1.2.6-1.fc29.src.rpm
Last metadata expiration check: 0:00:12 ago on Tue 19 Jun 2018 07:24:52 AM BST.
Package gcc-8.1.1-1.1.riscv64.fc29.riscv64 is already installed, skipping.
Error: 
 Problem: package phpunit6-6.5.8-1.fc29.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