2019-08-07 23:37:18,243 [INFO] {18927} 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
2019-08-08 00:01:05,742 [INFO] {19357} 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/2681/232681/local/work/tasks/2521/232521/R-rlang-0.4.0-2.fc31.src.rpm)  Config(f31-build-74312-31091)
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 R-rlang-0.4.0-2.fc31.src.rpm
Start: build setup for R-rlang-0.4.0-2.fc31.src.rpm
ERROR: Exception(/tmp/koji/tasks/2681/232681/local/work/tasks/2521/232521/R-rlang-0.4.0-2.fc31.src.rpm) Config(f31-build-74312-31091) 1 minutes 53 seconds
INFO: Results and/or logs in: /var/lib/mock/f31-build-74312-31091/result
ERROR: Command failed: 
 # /usr/bin/dnf builddep --installroot /var/lib/mock/f31-build-74312-31091/root/ --setopt=install_weak_deps=0 /var/lib/mock/f31-build-74312-31091/root//builddir/build/SRPMS/R-rlang-0.4.0-2.fc31.src.rpm --setopt=tsflags=nocontexts
Last metadata expiration check: 0:00:09 ago on Wed 07 Aug 2019 11:40:08 PM EDT.
Error: 
 Problem 1: conflicting requests
  - nothing provides R-rpm-macros needed by R-devel-3.6.0-4.fc31.riscv64
 Problem 2: conflicting requests
  - nothing provides R-vctrs needed by R-pillar-1.4.2-2.fc31.noarch
  - nothing provides R-rlang >= 0.3.0 needed by R-pillar-1.4.2-2.fc31.noarch