INFO: mock.py version 1.1.36 starting...
Start: init plugins
INFO: tmpfs initialized
INFO: selinux disabled
Finish: init plugins
Start: run
INFO: Start(/mnt/dar/packages/wapiti/wapiti-2.3.0-5.fc20.art.src.rpm)  Config(fedora-18-i386)
Start: lock buildroot
Start: clean chroot
Finish: clean chroot
Finish: lock buildroot
Start: chroot init
Start: lock buildroot
Mock Version: 1.1.36
INFO: Mock Version: 1.1.36
INFO: calling preinit hooks
INFO: mounting tmpfs at /var/lib/mock/fedora-18-i386/root/.
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 ccache
Start: device setup
Finish: device setup
Start: yum update
Start: Outputting list of available packages
Finish: Outputting list of available packages
Finish: yum update
Finish: lock buildroot
Finish: chroot init
INFO: Installed packages:
Start: build phase for wapiti-2.3.0-5.fc20.art.src.rpm
Start: device setup
Finish: device setup
Start: build setup for wapiti-2.3.0-5.fc20.art.src.rpm
Finish: build setup for wapiti-2.3.0-5.fc20.art.src.rpm
Start: rpmbuild -bb wapiti-2.3.0-5.fc20.art.src.rpm
Start: Outputting list of installed packages
Finish: Outputting list of installed packages
Finish: rpmbuild -bb wapiti-2.3.0-5.fc20.art.src.rpm
INFO: unmounting tmpfs.
Finish: build phase for wapiti-2.3.0-5.fc20.art.src.rpm
INFO: Done(/mnt/dar/packages/wapiti/wapiti-2.3.0-5.fc20.art.src.rpm) Config(fc18-i386) 0 minutes 29 seconds
INFO: Results and/or logs in: /var/lib/mock/fedora-18-i386/result
Finish: run
,memory 0 0
cgroup /sys/fs/cgroup/devices cgroup rw,nosuid,nodev,noexec,relatime,devices 0 0
cgroup /sys/fs/cgroup/freezer cgroup rw,nosuid,nodev,noexec,relatime,freezer 0 0
cgroup /sys/fs/cgroup/net_cls cgroup rw,nosuid,nodev,noexec,relatime,net_cls 0 0
cgroup /sys/fs/cgroup/blkio cgroup rw,nosuid,nodev,noexec,relatime,blkio 0 0
cgroup /sys/fs/cgroup/perf_event cgroup rw,nosuid,nodev,noexec,relatime,perf_event 0 0
cgroup /sys/fs/cgroup/hugetlb cgroup rw,nosuid,nodev,noexec,relatime,hugetlb 0 0
pstore /sys/fs/pstore pstore rw,nosuid,nodev,noexec,relatime 0 0
debugfs /sys/kernel/debug debugfs rw,relatime 0 0
configfs /sys/kernel/config configfs rw,relatime 0 0
tmpfs /run tmpfs rw,nosuid,nodev,mode=755 0 0
tmpfs /tmp tmpfs rw 0 0
/dev/md126p1 /boot ext4 rw,relatime,data=ordered 0 0
build:/mnt /mnt nfs rw,relatime,vers=3,rsize=1048576,wsize=1048576,namlen=255,hard,proto=tcp,timeo=600,retrans=2,sec=sys,mountaddr=10.66.6.10,mountvers=3,mountport=756,mountproto=udp,local_lock=none,addr=10.66.6.10 0 0
mock_chroot_tmpfs /var/lib/mock/fedora-12-x86_64.tmp/root tmpfs rw,relatime,size=4194304k,mode=755 0 0
mock_chroot_tmpfs /var/lib/mock/fedora-18-i386.tmp/root tmpfs rw,relatime,size=4194304k,mode=755 0 0

ERROR: looking for users of /var/lib/mock/fedora-18-i386.tmp
ERROR: Exception(/mnt/dar/packages/wapiti/wapiti-2.3.0-5.fc20.art.src.rpm) Config(fedora-18-i386) 0 minutes 2 seconds
INFO: Results and/or logs in: /var/lib/mock/fedora-18-i386/result
Traceback (most recent call last):
  File "/usr/sbin/mock", line 307, in <module>
    def do_buildsrpm(config_opts, chroot, options, args):
  File "/usr/sbin/mock", line 631, in main
    do_rebuild(config_opts, chroot, args)
  File "<peak.util.decorators.rewrap wrapping __main__.do_rebuild at 0x01BA9488>", line 3, in do_rebuild
  File "/usr/lib/python2.7/site-packages/mockbuild/trace_decorator.py", line 70, in trace
    result = func(*args, **kw)
  File "/usr/sbin/mock", line 277, in do_rebuild
    chroot.clean()
  File "<peak.util.decorators.rewrap wrapping mockbuild.backend.clean at 0x01B81C80>", line 3, in clean
  File "/usr/lib/python2.7/site-packages/mockbuild/trace_decorator.py", line 70, in trace
    result = func(*args, **kw)
  File "/usr/lib/python2.7/site-packages/mockbuild/backend.py", line 206, in clean
    self._unlock_and_rm_chroot()
  File "<peak.util.decorators.rewrap wrapping mockbuild.backend._unlock_and_rm_chroot at 0x01BA81B8>", line 3, in _unlock_and_rm_chroot
  File "/usr/lib/python2.7/site-packages/mockbuild/trace_decorator.py", line 70, in trace
    result = func(*args, **kw)
  File "/usr/lib/python2.7/site-packages/mockbuild/backend.py", line 221, in _unlock_and_rm_chroot
    mockbuild.util.rmtree(t, selinux=self.selinux)
  File "<peak.util.decorators.rewrap wrapping mockbuild.util.rmtree at 0x01B61DE8>", line 3, in rmtree
  File "/usr/lib/python2.7/site-packages/mockbuild/trace_decorator.py", line 70, in trace
    result = func(*args, **kw)
  File "/usr/lib/python2.7/site-packages/mockbuild/util.py", line 95, in rmtree
    shutil.rmtree(path, *args, **kargs)
  File "/usr/lib64/python2.7/shutil.py", line 247, in rmtree
    rmtree(fullname, ignore_errors, onerror)
  File "/usr/lib64/python2.7/shutil.py", line 256, in rmtree
    onerror(os.rmdir, path, sys.exc_info())
  File "/usr/lib64/python2.7/shutil.py", line 254, in rmtree
    os.rmdir(path)
OSError: [Errno 16] Device or resource busy: '/var/lib/mock/fedora-18-i386.tmp/root'