2019-08-14 11:13:07,911 [INFO] {11384} koji.build.buildroot:440 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
2019-08-14 11:18:29,572 [INFO] {12000} koji.build.buildroot:440 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/3637/263637/local/work/tasks/3483/263483/python-twisted-19.2.1-4.fc31.src.rpm)  Config(f31-build-90206-32163)
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 python-twisted-19.2.1-4.fc31.src.rpm
Start: build setup for python-twisted-19.2.1-4.fc31.src.rpm
ERROR: Exception(/tmp/koji/tasks/3637/263637/local/work/tasks/3483/263483/python-twisted-19.2.1-4.fc31.src.rpm) Config(f31-build-90206-32163) 0 minutes 17 seconds
INFO: Results and/or logs in: /var/lib/mock/f31-build-90206-32163/result
ERROR: Command failed: 
 # /usr/bin/dnf builddep --installroot /var/lib/mock/f31-build-90206-32163/root/ --setopt=install_weak_deps=0 /var/lib/mock/f31-build-90206-32163/root//builddir/build/SRPMS/python-twisted-19.2.1-4.fc31.src.rpm
Last metadata expiration check: 0:00:03 ago on Wed Aug 14 11:13:30 2019.
No matching package to install: 'python2dist(cryptography) >= 2.5'
No matching package to install: 'python3dist(cryptography) >= 2.5'
Not all dependencies satisfied
Error: Some packages could not be found.