Why is my Bind9 Docker container crashing in recursive mode?

Hey folks, I'm working on setting up a Bind9 recursive container and I'm running into some issues. I managed to run it with a basic named.conf configuration, but it's not what I need. I'm trying to use a different config that includes forwarders and additional settings, but the container keeps crashing with an exit code 1. Here's the working config:

```
# named.conf
options {
directory "/var/cache/bind";
recursion yes;
allow-query { any; };
};

zone "example.com" IN {
type master;
file "/etc/bind/zones/db.example.com";
};
```

And here's the config that crashes:
```
# named.conf
options {
directory "/var/cache/bind";
recursion yes;
allow-query { any; };
forward only;
listen-on { any; };
listen-on-v6 { any; };
};

zone "testzone.net" IN {
type forward;
forward only;
forwarders { 172.0.200.3; };
};

zone "." IN {
type forward;
forward only;
forwarders {
8.8.8.8;
8.8.4.4;
1.1.1.1;
1.0.0.1;
};
};
```

When I run `docker compose up`, I just see repeated exit messages with code 1. My docker-compose.yml hasn't changed either. I'm running this on Debian 13 with Docker version 28.4.0. Any advice would be super helpful! Thanks!