INFO buildroot.py:471:  Mock Version: 2.6
DEBUG util.py:225:  ensuring that dir exists: /var/lib/mock/custom-1-x86_64-1606565987.823537/root/dev/pts
DEBUG util.py:228:  creating dir: /var/lib/mock/custom-1-x86_64-1606565987.823537/root/dev/pts
DEBUG util.py:225:  ensuring that dir exists: /var/lib/mock/custom-1-x86_64-1606565987.823537/root/dev/shm
DEBUG util.py:228:  creating dir: /var/lib/mock/custom-1-x86_64-1606565987.823537/root/dev/shm
DEBUG buildroot.py:655:  kernel version == 5.8.17-300.fc33.x86_64
DEBUG util.py:238:  touching file: /var/lib/mock/custom-1-x86_64-1606565987.823537/root/etc/fstab
DEBUG util.py:238:  touching file: /var/lib/mock/custom-1-x86_64-1606565987.823537/root/etc/yum/yum.conf
DEBUG util.py:238:  touching file: /var/lib/mock/custom-1-x86_64-1606565987.823537/root/etc/dnf/dnf.conf
DEBUG util.py:238:  touching file: /var/lib/mock/custom-1-x86_64-1606565987.823537/root/var/log/yum.log
DEBUG util.py:225:  ensuring that dir exists: /var/lib/mock/custom-1-x86_64-1606565987.823537/root/var/cache/yum
DEBUG util.py:806:  child environment: None
DEBUG util.py:732:  Executing command: ['/bin/mount', '-n', '--bind', '/var/cache/mock/custom-1-x86_64/yum_cache', '/var/lib/mock/custom-1-x86_64-1606565987.823537/root/var/cache/yum'] with env {'TERM': 'vt100', 'SHELL': '/bin/sh', 'HOME': '/builddir', 'HOSTNAME': 'mock', 'PATH': '/usr/bin:/bin:/usr/sbin:/sbin', 'LANG': 'C.UTF-8'} and shell False
DEBUG util.py:787:  Child return code was: 0
DEBUG util.py:225:  ensuring that dir exists: /var/lib/mock/custom-1-x86_64-1606565987.823537/root/var/cache/dnf
DEBUG util.py:806:  child environment: None
DEBUG util.py:732:  Executing command: ['/bin/mount', '-n', '--bind', '/var/cache/mock/custom-1-x86_64/dnf_cache', '/var/lib/mock/custom-1-x86_64-1606565987.823537/root/var/cache/dnf'] with env {'TERM': 'vt100', 'SHELL': '/bin/sh', 'HOME': '/builddir', 'HOSTNAME': 'mock', 'PATH': '/usr/bin:/bin:/usr/sbin:/sbin', 'LANG': 'C.UTF-8'} and shell False
DEBUG util.py:787:  Child return code was: 0
DEBUG util.py:225:  ensuring that dir exists: /var/lib/mock/custom-1-x86_64-1606565987.823537/root/proc
DEBUG util.py:238:  touching file: /var/lib/mock/custom-1-x86_64-1606565987.823537/root/proc/filesystems
DEBUG util.py:806:  child environment: None
DEBUG util.py:732:  Executing command: ['/bin/mount', '-n', '--bind', '/tmp/mock-selinux-plugin.i9ozru61', '/var/lib/mock/custom-1-x86_64-1606565987.823537/root/proc/filesystems'] with env {'TERM': 'vt100', 'SHELL': '/bin/sh', 'HOME': '/builddir', 'HOSTNAME': 'mock', 'PATH': '/usr/bin:/bin:/usr/sbin:/sbin', 'LANG': 'C.UTF-8'} and shell False
DEBUG util.py:787:  Child return code was: 0
DEBUG buildroot.py:193:  rootdir = /var/lib/mock/custom-1-x86_64-1606565987.823537/root
DEBUG buildroot.py:194:  resultdir = /var/lib/copr-rpmbuild/results
DEBUG util.py:225:  ensuring that dir exists: /var/lib/mock/custom-1-x86_64-1606565987.823537/root/etc/pki/mock
DEBUG util.py:228:  creating dir: /var/lib/mock/custom-1-x86_64-1606565987.823537/root/etc/pki/mock
DEBUG util.py:225:  ensuring that dir exists: /var/lib/mock/custom-1-x86_64-1606565987.823537/root/etc/dnf
DEBUG package_manager.py:569:  configure DNF vars
DEBUG util.py:238:  touching file: /var/lib/mock/custom-1-x86_64-1606565987.823537/root/etc/os-release
DEBUG util.py:225:  ensuring that dir exists: /var/lib/copr-rpmbuild/results/chroot_scan
DEBUG util.py:228:  creating dir: /var/lib/copr-rpmbuild/results/chroot_scan
DEBUG util.py:359:  kill orphans
DEBUG util.py:806:  child environment: None
DEBUG util.py:732:  Executing command: ['/bin/umount', '-n', '/var/lib/mock/custom-1-x86_64-1606565987.823537/root/proc/filesystems'] with env {'TERM': 'vt100', 'SHELL': '/bin/sh', 'HOME': '/builddir', 'HOSTNAME': 'mock', 'PATH': '/usr/bin:/bin:/usr/sbin:/sbin', 'LANG': 'C.UTF-8'} and shell False
DEBUG util.py:787:  Child return code was: 0
DEBUG util.py:806:  child environment: None
DEBUG util.py:732:  Executing command: ['/bin/umount', '-n', '/var/lib/mock/custom-1-x86_64-1606565987.823537/root/var/cache/dnf'] with env {'TERM': 'vt100', 'SHELL': '/bin/sh', 'HOME': '/builddir', 'HOSTNAME': 'mock', 'PATH': '/usr/bin:/bin:/usr/sbin:/sbin', 'LANG': 'C.UTF-8'} and shell False
DEBUG util.py:787:  Child return code was: 0
DEBUG util.py:806:  child environment: None
DEBUG util.py:732:  Executing command: ['/bin/umount', '-n', '/var/lib/mock/custom-1-x86_64-1606565987.823537/root/var/cache/yum'] with env {'TERM': 'vt100', 'SHELL': '/bin/sh', 'HOME': '/builddir', 'HOSTNAME': 'mock', 'PATH': '/usr/bin:/bin:/usr/sbin:/sbin', 'LANG': 'C.UTF-8'} and shell False
DEBUG util.py:787:  Child return code was: 0
DEBUG util.py:806:  child environment: None
DEBUG util.py:732:  Executing command: ['umount', '-n', '/var/lib/mock/custom-1-x86_64-1606565987.823537/root'] with env {'TERM': 'vt100', 'SHELL': '/bin/sh', 'HOME': '/builddir', 'HOSTNAME': 'mock', 'PATH': '/usr/bin:/bin:/usr/sbin:/sbin', 'LANG': 'C.UTF-8'} and shell False
DEBUG util.py:787:  Child return code was: 0
DEBUG util.py:806:  child environment: None
DEBUG util.py:732:  Executing command: ['btrfs', 'subv', 'list', '/var/lib/mock'] with env {'TERM': 'vt100', 'SHELL': '/bin/sh', 'HOME': '/builddir', 'HOSTNAME': 'mock', 'PATH': '/usr/bin:/bin:/usr/sbin:/sbin', 'LANG': 'C.UTF-8'} and shell False
DEBUG util.py:634:  ERROR: not a btrfs filesystem: /var/lib/mock
DEBUG util.py:634:  ERROR: can't access '/var/lib/mock'
DEBUG util.py:787:  Child return code was: 1
DEBUG util.py:1760:  Please ignore the error above above about btrfs.