INFO: mock.py version 1.4.21 starting (python version = 3.7.5)...
Start: init plugins
INFO: tmpfs initialized
INFO: selinux disabled
Finish: init plugins
INFO: Signal handler active
Start: run
INFO: Start(/var/tmp/python-cryptography/python-cryptography-1.7.2-2.fc30.art.src.rpm)  Config(epel-7-x86_64)
Start: clean chroot
Finish: clean chroot
Start: chroot init
INFO: mounting tmpfs at /var/lib/mock/epel-7-x86_64/root.
INFO: calling preinit hooks
INFO: enabled root cache
Start: unpacking root cache
Finish: unpacking root cache
INFO: enabled yum cache
Start: cleaning yum metadata
Finish: cleaning yum metadata
INFO: enabled HW Info plugin
Mock Version: 1.4.21
INFO: Mock Version: 1.4.21
Start: yum update
Finish: yum update
Finish: chroot init
Start: build phase for python-cryptography-1.7.2-2.fc30.art.src.rpm
Start: build setup for python-cryptography-1.7.2-2.fc30.art.src.rpm
Finish: build setup for python-cryptography-1.7.2-2.fc30.art.src.rpm
Start: Outputting list of installed packages
Finish: Outputting list of installed packages
Start: rpmbuild python-cryptography-1.7.2-2.fc30.art.src.rpm
Finish: rpmbuild python-cryptography-1.7.2-2.fc30.art.src.rpm
Finish: build phase for python-cryptography-1.7.2-2.fc30.art.src.rpm
ERROR: Exception(/var/tmp/python-cryptography/python-cryptography-1.7.2-2.fc30.art.src.rpm) Config(epel-7-x86_64) 0 minutes 24 seconds
INFO: Results and/or logs in: /var/lib/mock/epel-7-x86_64/result
INFO: unmounting tmpfs.
ERROR: Command failed: 
 # /usr/bin/systemd-nspawn -q -M 091a0d4b0ab84694968da5aa2ceac29f -D /var/lib/mock/epel-7-x86_64/root -a --capability=cap_ipc_lock --bind=/tmp/mock-resolv.fjkin0zq:/etc/resolv.conf --setenv=TERM=vt100 --setenv=SHELL=/bin/bash --setenv=HOME=/builddir --setenv=HOSTNAME=mock --setenv=PATH=/usr/bin:/bin:/usr/sbin:/sbin --setenv=PROMPT_COMMAND=printf "\033]0;<mock-chroot>\007" --setenv=PS1=<mock-chroot> \s-\v\$  --setenv=LANG=en_US.UTF-8 -u mockbuild bash --login -c /usr/bin/rpmbuild -bb --target x86_64 --nodeps /builddir/build/SPECS/python-cryptography-art.spec