INFO: mock.py version 1.1.38 starting...
Start: init plugins
INFO: tmpfs initialized
INFO: selinux disabled
Finish: init plugins
Start: run
INFO: Start(/mnt/dar/packages/nucleus-release/nucleus-release-1.0-20.fc20.art.src.rpm)  Config(fedora-18-i386)
Start: lock buildroot
Start: clean chroot
INFO: chroot (/var/lib/mock/fedora-18-i386) unlocked and deleted
Finish: clean chroot
Finish: lock buildroot
Start: chroot init
Start: lock buildroot
Mock Version: 1.1.38
INFO: Mock Version: 1.1.38
INFO: calling preinit hooks
INFO: mounting tmpfs at /var/lib/mock/fedora-18-i386/root/.
INFO: enabled root cache
INFO: root cache aged out! cache will be rebuilt
INFO: enabled yum cache
Start: cleaning yum metadata
Finish: cleaning yum metadata
INFO: enabled ccache
Start: device setup
Finish: device setup
Start: yum update
INFO: unmounting tmpfs.
ERROR: Exception(/mnt/dar/packages/nucleus-release/nucleus-release-1.0-20.fc20.art.src.rpm) Config(fedora-18-i386) 0 minutes 1 seconds
INFO: Results and/or logs in: /var/lib/mock/fedora-18-i386/result
ERROR: Exiting on user interrupt, <CTRL>-C