Comment 18 for bug 1335885

With the 2nd test binary (30s @ 1s interval), the results were much-improved. The first 44 iterations were successful (vs 19 on the 1st custom bin, 9 on 1.24.6 proper). However, on the 45th iteration, a new error was hit.

After successfully destroying, it issued a 2nd 'terminate instance,' resulting in a nil error.

2015-09-30 22:33:00 DEBUG juju.provider.openstack provider.go:1141 terminating instances []
2015-09-30 22:33:31 WARNING juju.provider.openstack provider.go:1628 cannot delete security group "juju-beis1". Used by another environment?
2015-09-30 22:33:31 ERROR juju.cmd supercommand.go:430 failed to bootstrap environment: cannot start bootstrap instance: cannot set up groups: failed to create a rule for the security group with id: <nil>
caused by: failed executing the request http://10.245.161.158:8774/v2/e5965159218d4836950b2e5f27d1c9b2/os-security-group-rules
caused by: Post http://10.245.161.158:8774/v2/e5965159218d4836950b2e5f27d1c9b2/os-security-group-rules: EOF

...

Full loop output:
http://paste.ubuntu.com/12629219/