Comment 5 for bug 1788188

I was pushing this through autopkgtesting on LP-Infra where we see issues with that sometimes.
Unfortunately when you need an issue it does not show up, I only have 4 good cases:

https://objectstorage.prodstack4-5.canonical.com/v1/AUTH_77e2ada1e7a84929a74ba3b87153c0ac/autopkgtest-cosmic-ci-train-ppa-service-3372/cosmic/amd64/o/open-iscsi/20180823_070627_52393@/log.gz
https://objectstorage.prodstack4-5.canonical.com/v1/AUTH_77e2ada1e7a84929a74ba3b87153c0ac/autopkgtest-cosmic-ci-train-ppa-service-3372/cosmic/amd64/o/open-iscsi/20180822_061335_52393@/log.gz
https://objectstorage.prodstack4-5.canonical.com/v1/AUTH_77e2ada1e7a84929a74ba3b87153c0ac/autopkgtest-cosmic-ci-train-ppa-service-3372/cosmic/amd64/o/open-iscsi/20180821_215839_7dcd3@/log.gz
https://objectstorage.prodstack4-5.canonical.com/v1/AUTH_77e2ada1e7a84929a74ba3b87153c0ac/autopkgtest-cosmic-ci-train-ppa-service-3372/cosmic/amd64/o/open-iscsi/20180823_083835_52393@/log.gz

I won't retry further, but if anyone wants:
Retrigger is:
https://autopkgtest.ubuntu.com/request.cgi?release=cosmic&arch=amd64&package=open-iscsi&trigger=open-iscsi%2F2.0.874-5ubuntu8%7Eppa0&ppa=ci-train-ppa-service%2Fstable-phone-overlay&ppa=ci-train-ppa-service%2F3372
And results after a while will show as updated link on:
https://bileto.ubuntu.com/excuses/3372/cosmic.html