check collisions between drones

See merge request !1809
7 jobs for master in 0 seconds (queued for 3 seconds)
Status Job ID Name Coverage
  External
failed ERP5.CodingStyleTest-Master

00:39:59

passed ERP5.PerformanceTest-Master

00:26:42

passed ERP5.UnitTest-Master

01:19:32

failed ERP5.UnitTest-Zope2

01:39:58

passed SlapOS.Eggs.UnitTest-Master.Python2

00:14:09

passed SlapOS.Eggs.UnitTest-Master.Python3

00:17:59

passed Wendelin.UnitTest-Master

00:23:04