2019-09-21 18:11:18,465 [INFO] {3503} 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
2019-09-21 18:39:10,729 [INFO] {3856} 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/2857/312857/local/work/tasks/2677/312677/libcxx-8.0.0-1.fc31.1.src.rpm)  Config(f31-build-116180-34529)
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 libcxx-8.0.0-1.fc31.1.src.rpm
Start: build setup for libcxx-8.0.0-1.fc31.1.src.rpm
ERROR: Exception(/tmp/koji/tasks/2857/312857/local/work/tasks/2677/312677/libcxx-8.0.0-1.fc31.1.src.rpm) Config(f31-build-116180-34529) 2 minutes 22 seconds
INFO: Results and/or logs in: /var/lib/mock/f31-build-116180-34529/result
ERROR: Command failed: 
 # /usr/bin/dnf builddep --installroot /var/lib/mock/f31-build-116180-34529/root/ --setopt=install_weak_deps=0 /var/lib/mock/f31-build-116180-34529/root//builddir/build/SRPMS/libcxx-8.0.0-1.fc31.1.src.rpm --setopt=tsflags=nocontexts
Last metadata expiration check: 0:00:15 ago on Sat 21 Sep 2019 06:13:53 PM EDT.
No matching package to install: 'libcxxabi-devel'
Package python3-3.7.4-4.fc31.riscv64 is already installed.
Not all dependencies satisfied
Error: Some packages could not be found.