Comment 2 for bug 2049099

Indeed starting of lxd services inside the container failed for me:

```
$ snap change 1
...
Done yesterday at 02:10 UTC today at 08:03 UTC Ensure prerequisites for "lxd" are available
Undone yesterday at 02:10 UTC today at 08:03 UTC Prepare snap "/var/lib/snapd/seed/snaps/lxd_24322.snap" (24322)
Undone yesterday at 02:10 UTC today at 08:03 UTC Mount snap "lxd" (24322)
Error yesterday at 02:10 UTC today at 08:03 UTC Copy snap "lxd" data
Undone yesterday at 02:10 UTC today at 08:03 UTC Setup snap "lxd" (24322) security profiles
..
Undone yesterday at 02:10 UTC today at 08:03 UTC Run default-configure hook of "lxd" snap if present
Error yesterday at 02:10 UTC today at 08:03 UTC Start snap "lxd" (24322) services
Hold yesterday at 02:10 UTC today at 08:03 UTC Run configure hook of "lxd" snap if present
Hold yesterday at 02:10 UTC today at 08:03 UTC Run health check of "lxd" snap
Done yesterday at 02:10 UTC today at 08:03 UTC Mark system pre-seeded
Hold yesterday at 02:10 UTC today at 08:03 UTC Mark system seeded
Undone yesterday at 02:10 UTC today at 08:03 UTC Connect lxd:lxd-support to snapd:lxd-support
Undone yesterday at 02:10 UTC today at 08:03 UTC Connect lxd:network to snapd:network
Undone yesterday at 02:10 UTC today at 08:03 UTC Connect lxd:network-bind to snapd:network-bind
Undone yesterday at 02:10 UTC today at 08:03 UTC Connect lxd:system-observe to snapd:system-observe
Undone yesterday at 02:10 UTC today at 08:03 UTC Setup snap "lxd" (24322) security profiles for auto-connections

......................................................................
Make snap "snapd" (20671) available to the system

2024-01-26T08:03:29Z INFO Requested daemon restart (snapd snap).

......................................................................
Copy snap "lxd" data

2024-01-26T08:03:28Z ERROR unlinkat /var/snap/lxd/common/var/lib/lxcfs/proc/cpuinfo: function not implemented

......................................................................
Start snap "lxd" (24322) services

2024-01-26T08:03:27Z ERROR systemctl command [start snap.lxd.activate.service] failed with exit status 1: stderr:
Job for snap.lxd.activate.service failed because the control process exited with error code.
See "systemctl status snap.lxd.activate.service" and "journalctl -xeu snap.lxd.activate.service" for details.
```