New comment by notramo on void-packages repository

https://github.com/void-linux/void-packages/issues/41363#issuecomment-1370246273

Comment:
Full log (`waydroid log` started before launching container):
```
(013323) [22:18:55] % modprobe -q ashmem_linux
(013323) [22:18:55] % chmod 666 -R /dev/anbox-binder
(013323) [22:18:55] % chmod 666 -R /dev/anbox-vndbinder
(013323) [22:18:55] % chmod 666 -R /dev/anbox-hwbinder
(013323) [22:18:55] Container manager is waiting for session to load
(013716) [22:19:12] Save session config: /var/lib/waydroid/session.cfg
(013716) [22:19:12] UserMonitor service is not even started
(013716) [22:19:12] Clipboard service is not even started
(013323) [22:19:12] % /usr/lib/waydroid/data/scripts/waydroid-net.sh start
vnic is waydroid0

dnsmasq: failed to open pidfile /run/waydroid-lxc/dnsmasq.pid: Permission denied
Failed to setup waydroid-net.
Failed to setup waydroid-net.
(013323) [22:19:12] % umount /var/lib/waydroid/rootfs/vendor/waydroid.prop
(013323) [22:19:12] % umount /var/lib/waydroid/rootfs/vendor
(013323) [22:19:12] % umount /var/lib/waydroid/rootfs
(013323) [22:19:12] % mount /var/lib/waydroid/images/system.img /var/lib/waydroid/rootfs
(013323) [22:19:13] % mount -o remount,ro /var/lib/waydroid/images/system.img /var/lib/waydroid/rootfs
(013323) [22:19:13] % mount /var/lib/waydroid/images/vendor.img /var/lib/waydroid/rootfs/vendor
(013323) [22:19:13] % mount -o remount,ro /var/lib/waydroid/images/vendor.img /var/lib/waydroid/rootfs/vendor
(013323) [22:19:13] % mount -o bind /var/lib/waydroid/waydroid.prop /var/lib/waydroid/rootfs/vendor/waydroid.prop
(013323) [22:19:13] Save config: /var/lib/waydroid/waydroid.cfg
(013323) [22:19:13] % chmod 777 -R /dev/dri
(013323) [22:19:13] % chmod 777 -R /dev/fb0
(013323) [22:19:13] % chmod 777 -R /dev/video1
(013323) [22:19:13] % chmod 777 -R /dev/video0
(013323) [22:19:13] % lxc-start -P /var/lib/waydroid/lxc -F -n waydroid -- /init
(013323) [22:19:13] New background process: pid=13787, output=background
(013323) [22:19:13] waiting 10 seconds for container to start...
lxc-start: waydroid: ../src/lxc/network.c: netdev_configure_server_veth: 711 No such file or directory - Failed to attach "vethrKzhjZ" to bridge "waydroid0", bridge interface doesn't exist
lxc-start: waydroid: ../src/lxc/network.c: lxc_create_network_priv: 3427 No such file or directory - Failed to create network device
lxc-start: waydroid: ../src/lxc/start.c: lxc_spawn: 1840 Failed to create the network
lxc-start: waydroid: ../src/lxc/start.c: __lxc_start: 2107 Failed to spawn container "waydroid"
lxc-start: waydroid: ../src/lxc/conf.c: run_buffer: 321 Script exited with status 126
lxc-start: waydroid: ../src/lxc/start.c: lxc_end: 985 Failed to run lxc.hook.post-stop for container "waydroid"
lxc-start: waydroid: ../src/lxc/tools/lxc_start.c: main: 306 The container failed to start
lxc-start: waydroid: ../src/lxc/tools/lxc_start.c: main: 311 Additional information can be obtained by setting the --logfile and --logpriority options
(013323) [22:19:14] waiting 9 seconds for container to start...
(013323) [22:19:15] waiting 8 seconds for container to start...
(013323) [22:19:16] waiting 7 seconds for container to start...
(013323) [22:19:17] waiting 6 seconds for container to start...
(013323) [22:19:18] waiting 5 seconds for container to start...
(013323) [22:19:19] waiting 4 seconds for container to start...
(013323) [22:19:20] waiting 3 seconds for container to start...
(013323) [22:19:21] waiting 2 seconds for container to start...
(013323) [22:19:22] waiting 1 seconds for container to start...
(013323) [22:19:23] ERROR: container failed to start
(013323) [22:19:23] See also: <https://github.com/waydroid>
(013323) [22:19:23] Traceback (most recent call last):
  File "/usr/lib/waydroid/tools/__init__.py", line 68, in main
    actions.container_manager.start(args)
  File "/usr/lib/waydroid/tools/actions/container_manager.py", line 131, in start
    raise OSError("container failed to start")
OSError: container failed to start

(014031) [22:19:23] UserMonitor service is not even started
(014031) [22:19:23] Clipboard service is not even started
(013716) [22:19:23] UserMonitor service is not even started
(013716) [22:19:23] Clipboard service is not even started
(014032) [22:19:23] WayDroid container is STOPPED
(014043) [22:19:23] % modprobe -q ashmem_linux
(014043) [22:19:23] % chmod 666 -R /dev/anbox-binder
(014043) [22:19:23] % chmod 666 -R /dev/anbox-vndbinder
(014043) [22:19:23] % chmod 666 -R /dev/anbox-hwbinder
(014043) [22:19:23] Container manager is waiting for session to load
```

There are no messages in `dmesg` regarding the interface, or anything network-related.

The `/run/waydroid-lxc` directory is 777 permissioned and empty.

I have `dnscrypt-proxy` running on port 53, but it's complaining about a pidfile, not the TCP socket. I also tried to relaunch Waydroid container and session with `dnscrypt-proxy` stopped.

I tried to run `dnsmasq` standalone from a `root` shell, with the following command:
```
dnsmasq -x /run/waydroid-lxc/dnsmasq.pid
```
It didn't work, and failed with the same error message as is in the log. It started successfully when the pidfile was not specified (it was created at the default location `/run/dnsmasq.pid`).