-- in slave job, the lock is now properly done for the whole job
 -- in master job, all slave jobs are really sent in parallel
    they should now now appear as failed (if fails)
 cherry-picked from develop (47437903f9c6ee6feebb78f6ad90b43dc2264d66)
Signed-off-by: Raphael Defosseux <raphael.defosseux@eurecom.fr>