We are using Team City 7.1.3
We have set up Team City to automatically cleanup artefacts every night
We have noticed that although the artefacts are successfully deleted, for each build a .teamcity folder is left behind. Although the contents of this folder is pretty small, we have so many builds that cumulatively these folders begin to take up a significant amount of disk space.
Is it safe to delete these folders? If it is safe, why doesn't the automatic cleanup do it?
Note that I tried deleting one of these folders and it didn't seem to have any adverse effect - I could still see the results of the build in the team city UI.