Dependent_mounts:3065 - No such file or directory - Failed to recursively turn old root mount tree into dependent mount

Hi, should I worry about this error message?

I’m basically setting up containers to run Docker/RKE/Rancher and found that my profile is giving me this warning/error, not sure if I should worry about it or if this is normal.

Using LXC 4.10, Ubuntu 20.04

lxc t 20210203144218.785 WARN cgfsng - cgroups/cgfsng.c:mkdir_eexist_on_last:1126 - File exists - Failed to create directory “/sys/fs/cgroup/cpuset//lxc.monitor.t”
lxc t 20210203144218.793 WARN cgfsng - cgroups/cgfsng.c:mkdir_eexist_on_last:1126 - File exists - Failed to create directory “/sys/fs/cgroup/cpuset//lxc.payload.t”
lxc t 20210203144218.111 ERROR conf - conf.c:turn_into_dependent_mounts:3065 - No such file or directory - Failed to recursively turn old root mount tree into dependent mount. Continuing…
lxc t 20210203144218.130 ERROR utils - utils.c:__safe_mount_beneath_at:1106 - Function not implemented - Failed to open 30(dev)

Profile:

name: test-profile
config:
  user.user-data: |
    #cloud-config
    users:
     - name: dockeruser
  raw.lxc: |
    lxc.apparmor.profile=unconfined
    lxc.mount.auto=proc:rw sys:rw cgroup:rw
    lxc.cgroup.devices.allow=a
    lxc.cap.drop=
  security.nesting: "true"
  security.privileged: "true"
  limits.cpu: 2
  limits.cpu.allowance: 50ms/100ms
  limits.memory: 4GB
  limits.memory.swap: "false"
devices:
  eth0:
    name: eth0
    network: lxdbr0
    type: nic
  root:
    path: /
    pool: default
    type: disk
description: Testing profile