catch write error if M2 schroot was killed
catch write error if M2 schroot was killed

fhinkel/InteractiveShell,fhinkel/InteractiveShell,fhinkel/InteractiveShell,fhinkel/tryM2,fhinkel/tryM2,fhinkel/InteractiveShell,YueRen/tryM2,fhinkel/tryM2,YueRen/tryM2,antonleykin/InteractiveShell,antonleykin/InteractiveShell,fhinkel/tryM2,antonleykin/InteractiveShell,YueRen/tryM2