ostbuild won't run mount?

[Michael Hill <mdhillca gmail com>]

This worked on the weekend. The file and folder both exist.

/ostree # ostbuild privhelper-deploy-qemu --rootdir=/ostree
/ostree/repo trees/gnomeos-3.8-x86_64-devel
ostbuild: /ostree/ostree-qemu.img not found, creating
Formatting '/ostree/ostree-qemu.img.tmp', fmt=raw size=6442450944
mount: /ostree/ostree-qemu.img.tmp: failed to setup loop device: No
such file or directory
umount: /ostree/ostree-qemu-mnt: not mounted
Traceback (most recent call last):
  File "/usr/local/bin/ostbuild", line 33, in <module>
    sys.exit(main(sys.argv[1:]))
  File "/usr/local/lib64/ostbuild/pyostbuild/main.py", line 58, in main
    return builtin.execute(args[1:])
  File "/usr/local/lib64/ostbuild/pyostbuild/builtin_privhelper_deploy_qemu.py",
line 90, in execute
    self._create_qemu_disk()
  File "/usr/local/lib64/ostbuild/pyostbuild/builtin_privhelper_deploy_qemu.py",
line 49, in _create_qemu_disk
    subprocess.check_call(['mount', '-o', 'loop', tmppath, self.mountpoint])
  File "/usr/lib64/python2.7/subprocess.py", line 511, in check_call
    raise CalledProcessError(retcode, cmd)
subprocess.CalledProcessError: Command '['mount', '-o', 'loop',
'/ostree/ostree-qemu.img.tmp', '/ostree/ostree-qemu-mnt']' returned
non-zero exit status 32