2018-05-28 03:59:28,626 [INFO] {7086} 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
2018-05-28 04:09:41,065 [INFO] {8227} 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/3975/13975/local/work/cli-build/1527424209.5276535.FdfhUHmT/rubygem-cairo-1.15.13-1.fc29.src.rpm)  Config(f29-build-5070-1197)
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 rubygem-cairo-1.15.13-1.fc29.src.rpm
Start: build setup for rubygem-cairo-1.15.13-1.fc29.src.rpm
ERROR: Exception(/tmp/koji/tasks/3975/13975/local/work/cli-build/1527424209.5276535.FdfhUHmT/rubygem-cairo-1.15.13-1.fc29.src.rpm) Config(f29-build-5070-1197) 0 minutes 24 seconds
INFO: Results and/or logs in: /var/lib/mock/f29-build-5070-1197/result
ERROR: Command failed: 
 # /usr/bin/dnf builddep --installroot /var/lib/mock/f29-build-5070-1197/root/ /var/lib/mock/f29-build-5070-1197/root//builddir/build/SRPMS/rubygem-cairo-1.15.13-1.fc29.src.rpm
Last metadata expiration check: 0:00:02 ago on Mon 28 May 2018 04:09:53 AM UTC.
Package gcc-8.1.1-1.1.riscv64.fc29.riscv64 is already installed, skipping.
Error: 
 Problem: conflicting requests
  - nothing provides rubygem(cairo-gobject) >= 3.2.1 needed by rubygem-poppler-3.2.1-1.fc27.noarch