db: removing /var/lib/mock/f31-build-75970-31347/root/var/lib/rpm/__db.001
DEBUG buildroot.py:374:  nuke_rpm_db: removing /var/lib/mock/f31-build-75970-31347/root/var/lib/rpm/__db.003
DEBUG buildroot.py:374:  nuke_rpm_db: removing /var/lib/mock/f31-build-75970-31347/root/var/lib/rpm/__db.002
DEBUG util.py:717:  child environment: None
DEBUG util.py:643:  Executing command: ['/usr/sbin/usermod', '-u', '986', '--non-unique', 'mockbuild'] with env {'TERM': 'vt100', 'SHELL': '/bin/bash', 'HOME': '/builddir', 'HOSTNAME': 'mock', 'PATH': '/usr/bin:/bin:/usr/sbin:/sbin', 'PROMPT_COMMAND': 'printf "\\033]0;<mock-chroot>\\007"', 'PS1': '<mock-chroot> \\s-\\v\\$ ', 'LANG': 'en_US.UTF-8'} and shell False
DEBUG util.py:389:  Unsharing. Flags: 134217728
DEBUG util.py:554:  BUILDSTDERR: usermod: no changes
DEBUG util.py:698:  Child return code was: 0
DEBUG util.py:193:  touching file: /var/lib/mock/f31-build-75970-31347/root/.initialized
INFO backend.py:349:  Running in chroot: ['fedpkg', 'sources']
DEBUG util.py:717:  child environment: None
DEBUG util.py:643:  Executing command: ['fedpkg', 'sources'] with env {'TERM': 'vt100', 'SHELL': '/bin/bash', 'HOME': '/builddir', 'HOSTNAME': 'mock', 'PATH': '/usr/bin:/bin:/usr/sbin:/sbin', 'PROMPT_COMMAND': 'printf "\\033]0;<mock-chroot>\\007"', 'PS1': '<mock-chroot> \\s-\\v\\$ ', 'LANG': 'en_US.UTF-8'} and shell False
DEBUG util.py:389:  Unsharing. Flags: 134217728
DEBUG util.py:554:  BUILDSTDERR:   % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
DEBUG util.py:554:  BUILDSTDERR:                                  Dload  Upload   Total   Spent    Left  Speed
DEBUG util.py:554:  BUILDSTDERR: 
  0     0    0     0    0     0      0      0 --:--:-- --:--:-- --:--:--     0
  0     0    0     0    0     0      0      0 --:--:-- --:--:-- --:--:--     0
DEBUG util.py:554:  BUILDSTDERR: curl: (77) error setting certificate verify locations:
DEBUG util.py:554:  BUILDSTDERR:   CAfile: /etc/pki/tls/certs/ca-bundle.crt
DEBUG util.py:554:  BUILDSTDERR:   CApath: none
DEBUG util.py:698:  Child return code was: 77
DEBUG util.py:292:  kill orphans
DEBUG util.py:717:  child environment: None
DEBUG util.py:643:  Executing command: ['/bin/umount', '-n', '/var/lib/mock/f31-build-75970-31347/root/proc/filesystems'] with env {'TERM': 'vt100', 'SHELL': '/bin/sh', 'HOME': '/builddir', 'HOSTNAME': 'mock', 'PATH': '/usr/bin:/bin:/usr/sbin:/sbin', 'LANG': 'en_US.UTF-8'} and shell False
DEBUG util.py:698:  Child return code was: 0
DEBUG util.py:717:  child environment: None
DEBUG util.py:643:  Executing command: ['/bin/umount', '-n', '-l', '/var/lib/mock/f31-build-75970-31347/root/dev/pts'] with env {'TERM': 'vt100', 'SHELL': '/bin/sh', 'HOME': '/builddir', 'HOSTNAME': 'mock', 'PATH': '/usr/bin:/bin:/usr/sbin:/sbin', 'LANG': 'en_US.UTF-8'} and shell False
DEBUG util.py:698:  Child return code was: 0
DEBUG util.py:717:  child environment: None
DEBUG util.py:643:  Executing command: ['/bin/umount', '-n', '-l', '/var/lib/mock/f31-build-75970-31347/root/dev/shm'] with env {'TERM': 'vt100', 'SHELL': '/bin/sh', 'HOME': '/builddir', 'HOSTNAME': 'mock', 'PATH': '/usr/bin:/bin:/usr/sbin:/sbin', 'LANG': 'en_US.UTF-8'} and shell False
DEBUG util.py:698:  Child return code was: 0
DEBUG util.py:717:  child environment: None
DEBUG util.py:643:  Executing command: ['/bin/umount', '-n', '-l', '/var/lib/mock/f31-build-75970-31347/root/sys'] with env {'TERM': 'vt100', 'SHELL': '/bin/sh', 'HOME': '/builddir', 'HOSTNAME': 'mock', 'PATH': '/usr/bin:/bin:/usr/sbin:/sbin', 'LANG': 'en_US.UTF-8'} and shell False
DEBUG util.py:698:  Child return code was: 0
DEBUG util.py:717:  child environment: None
DEBUG util.py:643:  Executing command: ['/bin/umount', '-n', '-l', '/var/lib/mock/f31-build-75970-31347/root/proc'] with env {'TERM': 'vt100', 'SHELL': '/bin/sh', 'HOME': '/builddir', 'HOSTNAME': 'mock', 'PATH': '/usr/bin:/bin:/usr/sbin:/sbin', 'LANG': 'en_US.UTF-8'} and shell False
DEBUG util.py:698:  Child return code was: 0