When starting to use mock I followed the instructions that was given to add myself to the mock group:
[root@challahar ~]# usermod -aG mock challahar
This is my mock result for httptunneling:
[challahar@challahar SRPMS]$ mock -r fedora-15-x86_64 httptunnel-3.0.5-1.fc15.src.rpm
INFO: mock.py version 1.1.18 starting…
State Changed: init plugins
INFO: selinux enabled
State Changed: start
INFO: Start(httptunnel-3.0.5-1.fc15.src.rpm) Config(fedora-15-x86_64)
State Changed: lock buildroot
State Changed: clean
State Changed: unlock buildroot
State Changed: init
State Changed: lock buildroot
Mock Version: 1.1.18
INFO: Mock Version: 1.1.18
INFO: calling preinit hooks
INFO: enabled root cache
INFO: enabled yum cache
State Changed: cleaning yum metadata
INFO: enabled ccache
State Changed: running yum
State Changed: creating cache
State Changed: unlock buildroot
INFO: Installed packages:
State Changed: setup
State Changed: build
INFO: Done(httptunnel-3.0.5-1.fc15.src.rpm) Config(fedora-15-x86_64) 1 minutes 23 seconds
INFO: Results and/or logs in: /var/lib/mock/fedora-15-x86_64/result
State Changed: end
challahar 