2019-08-31 16:31:34,151 [INFO] {7799} 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
2019-08-31 16:38:02,409 [INFO] {8000} 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/519/280519/local/work/tasks/432/280432/rubygem-gtksourceview2-3.3.6-2.fc31.src.rpm)  Config(f31-build-98212-33031)
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-gtksourceview2-3.3.6-2.fc31.src.rpm
Start: build setup for rubygem-gtksourceview2-3.3.6-2.fc31.src.rpm
ERROR: Exception(/tmp/koji/tasks/519/280519/local/work/tasks/432/280432/rubygem-gtksourceview2-3.3.6-2.fc31.src.rpm) Config(f31-build-98212-33031) 0 minutes 18 seconds
INFO: Results and/or logs in: /var/lib/mock/f31-build-98212-33031/result
ERROR: Command failed: 
 # /usr/bin/dnf builddep --installroot /var/lib/mock/f31-build-98212-33031/root/ /var/lib/mock/f31-build-98212-33031/root//builddir/build/SRPMS/rubygem-gtksourceview2-3.3.6-2.fc31.src.rpm
Last metadata expiration check: 0:00:02 ago on Sat 31 Aug 2019 04:38:14 PM UTC.
No matching package to install: 'rubygem-cairo-devel'
No matching package to install: 'rubygem-gtk2-devel >= 3.0.8'
Not all dependencies satisfied
Error: Some packages could not be found.