2019-08-14 01:58:58,398 [INFO] {28326} 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
2019-08-14 02:06:44,043 [INFO] {29034} 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/1206/261206/local/work/tasks/1017/261017/reg-0.15.5-2.fc31.src.rpm)  Config(f31-build-88382-31960)
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 reg-0.15.5-2.fc31.src.rpm
Start: build setup for reg-0.15.5-2.fc31.src.rpm
ERROR: Exception(/tmp/koji/tasks/1206/261206/local/work/tasks/1017/261017/reg-0.15.5-2.fc31.src.rpm) Config(f31-build-88382-31960) 0 minutes 21 seconds
INFO: Results and/or logs in: /var/lib/mock/f31-build-88382-31960/result
ERROR: Command failed: 
 # /usr/bin/dnf builddep --installroot /var/lib/mock/f31-build-88382-31960/root/ /var/lib/mock/f31-build-88382-31960/root//builddir/build/SRPMS/reg-0.15.5-2.fc31.src.rpm
Last metadata expiration check: 0:00:02 ago on Wed 14 Aug 2019 02:06:59 AM UTC.
No matching package to install: 'golang'
Not all dependencies satisfied
Error: Some packages could not be found.