2019-07-27 20:23:48,452 [INFO] {3117} koji.build.buildroot:505 Running mock as kojibuilder
INFO: mock.py version 1.4.14 starting (python version = 3.7.3)...
Start: init plugins
INFO: selinux enabled
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: 1.4.14
INFO: Mock Version: 1.4.14
Start: dnf install
Finish: dnf install
Finish: chroot init
INFO: Installed packages:
Finish: run
2019-07-27 20:48:30,673 [INFO] {3605} koji.build.buildroot:505 Running mock as kojibuilder
INFO: mock.py version 1.4.14 starting (python version = 3.7.3)...
Start: init plugins
INFO: selinux enabled
Finish: init plugins
Start: run
INFO: Start(/tmp/koji/tasks/4250/204250/local/work/tasks/4074/204074/wings-2.2.4-1.fc31.src.rpm)  Config(f31-build-60731-28754)
Start: chroot init
INFO: calling preinit hooks
INFO: enabled HW Info plugin
Mock Version: 1.4.14
INFO: Mock Version: 1.4.14
Finish: chroot init
Start: build phase for wings-2.2.4-1.fc31.src.rpm
Start: build setup for wings-2.2.4-1.fc31.src.rpm
ERROR: Exception(/tmp/koji/tasks/4250/204250/local/work/tasks/4074/204074/wings-2.2.4-1.fc31.src.rpm) Config(f31-build-60731-28754) 2 minutes 9 seconds
INFO: Results and/or logs in: /var/lib/mock/f31-build-60731-28754/result
ERROR: Command failed: 
 # /usr/bin/dnf builddep --installroot /var/lib/mock/f31-build-60731-28754/root/ --setopt=install_weak_deps=0 /var/lib/mock/f31-build-60731-28754/root//builddir/build/SRPMS/wings-2.2.4-1.fc31.src.rpm --setopt=tsflags=nocontexts
Last metadata expiration check: 0:00:10 ago on Sat 27 Jul 2019 08:26:18 PM EDT.
Error: 
 Problem: conflicting requests
  - nothing provides erlang(erl_nif_version) = 2.13 needed by erlang-cl-1.2.4-1.fc30.riscv64