anchor.diff:  ]
   ~~~
   
  -#### grace\_time
  +##### grace\_time #####
   
   If specified, this setting overrides the default time period during which no client references a container before the container is destroyed.
   The value can either be the number of seconds as floating point number or integer, or the `null` value to completely disable the grace time.
   
  -#### disk\_size\_mb
  +##### disk\_size\_mb #####
   
   If specified, this setting overrides the default size of the container scratch filesystem. The value is expected to be an integer number.
   
  -### spawn HANDLE SCRIPT [OPTS]
  +#### spawn HANDLE SCRIPT [OPTS] ####
   
   Run the script `SCRIPT` in the container identified by `HANDLE`.
   
  
positive.code: By default, root owns the files on the host.
  If you supply the `OWNER` argument (in the form of `USER:GROUP`), files on the host will be chowned to this user/group after the copy has completed.
  
  ### stop HANDLE
  
  Stop processes running inside the container identified by `HANDLE`.
  
  
negative.code: 
  Run `rake setup` for further Warden bootstrapping.
  
  ## <a id='hacking'></a>Hacking ##
  
  The included tests create and destroy real containers, so they require system prerequisites to be in place.
  They need to be run as root if the backend to be tested requires it.
  
  See `root/<backend>/README.md` for backend-specific information.