[yocto] unpacking deb packages

[Markus Volk]

Hi all,
i´m building  for x86_64 using the recent master branch and encounter 
problems when fetching deb packages.
With any .deb file inside SRC_URI the task do_unpack stops with this output:

... data.tar.xz && tar --no-same-owner -xpf data.tar.xz && rm 
data.tar.xz failed with return value 2
if i  retry building the same recipe for 1-5 times without any change 
the task sometime completes without errors

can anyone confirm this?

Thank you,
Markus