INFO buildroot.py:307:  Mock Version: 1.2.14
DEBUG util.py:96:  ensuring that dir exists: /var/lib/mock/fedora-20-armhfp-pidora-root-22843/root/dev/pts
DEBUG util.py:99:  creating dir: /var/lib/mock/fedora-20-armhfp-pidora-root-22843/root/dev/pts
DEBUG util.py:96:  ensuring that dir exists: /var/lib/mock/fedora-20-armhfp-pidora-root-22843/root/dev/shm
DEBUG util.py:99:  creating dir: /var/lib/mock/fedora-20-armhfp-pidora-root-22843/root/dev/shm
DEBUG buildroot.py:445:  kernel version == 4.2.6-301.fc23.armv7hl+lpae
DEBUG util.py:172:  kill orphans
DEBUG util.py:541:  child environment: None
DEBUG util.py:474:  Executing command: ['btrfs', 'subv', 'list', '/var/lib/mock'] with env {'TERM': 'vt100', 'HOME': '/builddir', 'SHELL': '/bin/sh', 'PATH': '/usr/bin:/bin:/usr/sbin:/sbin', 'HOSTNAME': 'mock', 'LANG': 'en_US.UTF-8'} and shell False
DEBUG util.py:399:  ERROR: can't perform the search - Inappropriate ioctl for device
DEBUG util.py:399:  ERROR: can't get rootid for '/var/lib/mock'
DEBUG util.py:521:  Child return code was: 1