do_unpack_and_patch error

log.txt

jenkins@cd70340cbb00:~/workspace/fenrir/build-trieste/tmp/work/x86_64-linux/libmpc-native/1.2.1-r0/temp$ cat log.do_unpack_and_patch
DEBUG: Executing python function do_unpack_and_patch
DEBUG: Executing python function do_unpack
DEBUG: Executing python function base_do_unpack
NOTE: Unpacking /home/jenkins/downloads/mpc-1.2.1.tar.gz to /home/jenkins/workspace/fenrir/build-trieste/tmp/work/x86_64-linux/libmpc-native/1.2.1-r0/archiver-work//
DEBUG: Python function base_do_unpack finished
DEBUG: Python function do_unpack finished
ERROR: Error executing a python function in exec_func_python() autogenerated:

The stack trace of python calls that resulted in this exception/failure was:
File: 'exec_func_python() autogenerated', lineno: 2, function: <module>
     0001:
 *** 0002:do_unpack_and_patch(d)
     0003:
File: '/home/jenkins/workspace/fenrir/build-trieste/../poky/meta/classes/archiver.bbclass', lineno: 495, function: do_unpack_and_patch
     0491:    # Save the original source for creating the patches
     0492:    if d.getVarFlag('ARCHIVER_MODE', 'diff') == '1':
     0493:        src = d.getVar('S').rstrip('/')
     0494:        src_orig = '%s.orig' % src
 *** 0495:        oe.path.copytree(src, src_orig)
     0496:
     0497:    if bb.data.inherits_class('dos2unix', d):
     0498:        bb.build.exec_func('do_convert_crlf_to_lf', d)
     0499:
File: '/home/jenkins/workspace/fenrir/build-trieste/../poky/meta/lib/oe/path.py', lineno: 94, function: copytree
     0090:    # This way we also preserve hardlinks between files in the tree.
     0091:
     0092:    bb.utils.mkdirhier(dst)
     0093:    cmd = "tar --xattrs --xattrs-include='*' -cf - -S -C %s -p . | tar --xattrs --xattrs-include='*' -xf - -C %s" % (src, dst)
 *** 0094:    subprocess.check_output(cmd, shell=True, stderr=subprocess.STDOUT)
     0095:
     0096:def copyhardlinktree(src, dst):
     0097:    """Make a tree of hard links when possible, otherwise copy."""
     0098:    bb.utils.mkdirhier(dst)
File: '/usr/lib/python3.6/subprocess.py', lineno: 356, function: check_output
     0352:        # empty string. That is maintained here for backwards compatibility.
     0353:        kwargs['input'] = '' if kwargs.get('universal_newlines', False) else b''
     0354:
     0355:    return run(*popenargs, stdout=PIPE, timeout=timeout, check=True,
 *** 0356:               **kwargs).stdout
     0357:
     0358:
     0359:class CompletedProcess(object):
     0360:    """A process that has finished running.
File: '/usr/lib/python3.6/subprocess.py', lineno: 438, function: run
     0434:            raise
     0435:        retcode = process.poll()
     0436:        if check and retcode:
     0437:            raise CalledProcessError(retcode, process.args,
 *** 0438:                                     output=stdout, stderr=stderr)
     0439:    return CompletedProcess(process.args, retcode, stdout, stderr)
     0440:
     0441:
     0442:def list2cmdline(seq):
Exception: subprocess.CalledProcessError: Command 'tar --xattrs --xattrs-include='*' -cf - -S -C /home/jenkins/workspace/fenrir/build-trieste/tmp/work/x86_64-linux/libmpc-native/1.2.1-r0/archiver-work//mpc-1.2.1 -p . | tar --xattrs --xattrs-include='*' -xf - -C /home/jenkins/workspace/fenrir/build-trieste/tmp/work/x86_64-linux/libmpc-native/1.2.1-r0/archiver-work//mpc-1.2.1.orig' returned non-zero exit status 2.

Subprocess output:
tar: ./m4/ltoptions.m4: Cannot open: Permission denied
tar: ./m4/lt~obsolete.m4: Cannot open: Permission denied
tar: ./m4/ltsugar.m4: Cannot open: Permission denied
tar: ./m4/ltversion.m4: Cannot open: Permission denied
tar: ./m4/libtool.m4: Cannot open: Permission denied
tar: ./INSTALL: Cannot open: Permission denied
tar: Exiting with failure status due to previous errors

DEBUG: Python function do_unpack_and_patch finished
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