[Unraid OS version 6.12.0-rc2 available]

I'm getting a "No swap limit support" warning in docker, which prevents me from using the memory options for containers. See the "docker info" output below:

Client:
 Context:    default
 Debug Mode: false

Server:
 Containers: 57
  Running: 42
  Paused: 0
  Stopped: 15
 Images: 74
 Server Version: 20.10.23
 Storage Driver: overlay2
  Backing Filesystem: xfs
  Supports d_type: true
  Native Overlay Diff: true
  userxattr: false
 Logging Driver: json-file
 Cgroup Driver: cgroupfs
 Cgroup Version: 2
 Plugins:
  Volume: local
  Network: bridge host ipvlan macvlan null overlay
  Log: awslogs fluentd gcplogs gelf journald json-file local logentries splunk syslog
 Swarm: inactive
 Runtimes: io.containerd.runc.v2 io.containerd.runtime.v1.linux nvidia runc
 Default Runtime: runc
 Init Binary: docker-init
 containerd version: 5b842e528e99d4d4c1686467debf2bd4b88ecd86
 runc version: v1.1.4-0-g5fd4c4d1
 init version: de40ad0
 Security Options:
  seccomp
   Profile: default
  cgroupns
 Kernel Version: 6.1.20-Unraid
 Operating System: Slackware 15.0 x86_64 (post 15.0 -current)
 OSType: linux
 Architecture: x86_64
 CPUs: 8
 Total Memory: 30.8GiB
 Name: Beehive
 ID: QTPO:CTTS:SN3A:BCE5:6DWV:LTC5:UEPU:KJHP:GRNT:7D43:ECKQ:NU5K
 Docker Root Dir: /var/lib/docker
 Debug Mode: false
 Registry: https://index.docker.io/v1/
 Labels:
 Experimental: false
 Insecure Registries:
  127.0.0.0/8
 Live Restore Enabled: false
 Product License: Community Engine

WARNING: No swap limit support