logilab-devtools #8367 on "lgp build" failure some temporary directories are kept [resolved]

then subsequent runs fails for obscure reason, such as :

error: package directory './cubicweb-3/1/1' does not exist
priorityimportant
typebug
done in0.16.2
load0.500
load left0.000
closed by#c223dbb56323 on 'lgp build' failure some temporary directories are kept (Closes: #8367)