2018-06-02 21:26:44,853 [INFO] {28362} 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
2018-06-02 22:13:12,250 [INFO] {29923} 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/8321/18321/local/work/cli-build/1527700563.6154606.EUEkrSbH/R-promises-1.0.1-2.fc29.src.rpm)  Config(f29-build-7043-1727)
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 R-promises-1.0.1-2.fc29.src.rpm
Start: build setup for R-promises-1.0.1-2.fc29.src.rpm
ERROR: Exception(/tmp/koji/tasks/8321/18321/local/work/cli-build/1527700563.6154606.EUEkrSbH/R-promises-1.0.1-2.fc29.src.rpm) Config(f29-build-7043-1727) 3 minutes 25 seconds
INFO: Results and/or logs in: /var/lib/mock/f29-build-7043-1727/result
ERROR: Command failed: 
 # /usr/bin/dnf builddep --installroot /var/lib/mock/f29-build-7043-1727/root/ /var/lib/mock/f29-build-7043-1727/root//builddir/build/SRPMS/R-promises-1.0.1-2.fc29.src.rpm
Last metadata expiration check: 0:00:12 ago on Sat 02 Jun 2018 10:16:17 PM BST.
Error: 
 Problem: conflicting requests
  - nothing provides R-jsonlite needed by R-rmarkdown-1.9-1.fc29.noarch