anchor.diff:  Otherwise, the outermost directory, along with its contents, is copied.
   The unprivileged user will own the files in the container.
   
  -### copy HANDLE out SRC\_PATH DST\_PATH [OWNER]
  +#### copy HANDLE out SRC\_PATH DST\_PATH [OWNER] ####
   
   Copy the contents at `SRC_PATH` in the container identified by `HANDLE` to `DST_PATH` on the host.
   
  
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: If the number of connections referencing the container drops to zero, the container will automatically be destroyed after a preconfigured interval.
  If in the mean time the container is referenced again, this timer is cancelled.
  
  ### <a id='use'></a>Use ###
  
  The container can be used by running arbitrary scripts, copying files in and out, modifying firewall rules and modifying resource limits.
  Refer to the [Interface](#interface) section for a complete list of operations.
  
  ### <a id='destroy'></a>Destroy ###
  
  When a container is destroyed, either per user request, or automatically after being idle, Warden first kills all unprivileged processes running inside the container.
  These processes first receive a `TERM` signal, followed several seconds later by a `KILL` signal if they have not yet exited.
  When these processes have terminated, Warden sends a `KILL` to the root of the container process tree.
  Once all resources the container used have been released, its files are removed and it is considered destroyed.
  
  ## <a id='networking'></a>Networking ##
  
  ### <a id='interface'></a>Interface ###
  
  Warden uses a line-based JSON protocol to communicate with its clients, which it does over a Unix socket located at `/tmp/warden.sock` by default.
  Each command invocation is formatted as a JSON array, where the first element is the command name and subsequent elements can be any JSON object.
  Warden responds to the following commands:
  
  #### create [CONFIG] ####
  
  Creates a new container.
  
  