2018-11-28 04:18:08,016 [INFO] {2521} koji.build.buildroot:487 Running mock as kojibuilder
INFO: mock.py version 1.4.13 starting (python version = 3.7.0)...
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: 1.4.13
INFO: Mock Version: 1.4.13
Start: dnf install
Finish: dnf install
Finish: chroot init
INFO: Installed packages:
Finish: run
2018-11-28 05:06:08,674 [INFO] {3235} koji.build.buildroot:487 Running mock as kojibuilder
INFO: mock.py version 1.4.13 starting (python version = 3.7.0)...
Start: init plugins
INFO: selinux disabled
Finish: init plugins
Start: run
INFO: Start(/tmp/koji/tasks/3413/123413/local/work/cli-build/1543393229.2295706.QcBsTheU/R-httpuv-1.4.5-1.fc29.src.rpm)  Config(f29-build-34076-18532)
Start: chroot init
INFO: calling preinit hooks
INFO: enabled HW Info plugin
Mock Version: 1.4.13
INFO: Mock Version: 1.4.13
Finish: chroot init
Start: build phase for R-httpuv-1.4.5-1.fc29.src.rpm
Start: build setup for R-httpuv-1.4.5-1.fc29.src.rpm
ERROR: Exception(/tmp/koji/tasks/3413/123413/local/work/cli-build/1543393229.2295706.QcBsTheU/R-httpuv-1.4.5-1.fc29.src.rpm) Config(f29-build-34076-18532) 1 minutes 56 seconds
INFO: Results and/or logs in: /var/lib/mock/f29-build-34076-18532/result
ERROR: Command failed: 
 # /usr/bin/dnf builddep --installroot /var/lib/mock/f29-build-34076-18532/root/ --setopt=install_weak_deps=0 /var/lib/mock/f29-build-34076-18532/root//builddir/build/SRPMS/R-httpuv-1.4.5-1.fc29.src.rpm
Last metadata expiration check: 0:00:11 ago on Wed 28 Nov 2018 04:19:18 AM EST.
Error: 
 Problem: conflicting requests
  - nothing provides R-processx >= 3.2.0 needed by R-callr-3.0.0-1.fc29.noarch