Permissions problems on exit

Using Rancher im getting this error when i delete a stack

``` bash
s6-svscan: warning: unable to exec finish script .s6-svscan/finish: Permission denied
s6-svscan: warning: executing into .s6-svscan/crash
s6-svscan: fatal: unable to exec .s6-svscan/crash: Permission denied

```

and the container's continue running.
