minimal/do: delete .tmp files if a build fails.
minimal/do: delete .tmp files if a build fails.

dinkelk/redo-python,pombredanne/redo,dinkelk/redo-python,apenwarr/redo,dinkelk/redo-python,rowhit/redo,pombredanne/redo,rowhit/redo,pombredanne/redo,apenwarr/redo,apenwarr/redo,rowhit/redo,rowhit/redo,apenwarr/redo,pombredanne/redo,dinkelk/redo-python