Stuck on install-to-filesytem

While following the documentation to [create a libvirt vm image](https://docs.fedoraproject.org/en-US/bootc/qemu-and-libvirt/), The command gets stuck on `Message: Starting module org.osbuild.bootc.install-to-filesystem`. I also noticed that when I run `iotop -oa`, it shows a kworker thread creating a ton of data...somewhere:

```
Total DISK READ: 0.00 B/s | Total DISK WRITE: 27.80 G/s
Current DISK READ: 0.00 B/s | Current DISK WRITE: 0.00 B/s
TID PRIO USER DISK READ DISK WRITE> COMMAND
2588 be/4 root 0.00 B 6.18 T [kworker/u16:6+loop0]
```

I, in fact, do not have 6+ TB of storage on my laptop.

The worst part about this is the only way to kill this running thread is to hard reboot my laptop (hold the power button down).

Here is the exact command I ran:

```
CONTAINER_IMAGE="quay.io/centos-bootc/centos-bootc:stream9"

podman run \
--rm \
-it \
--privileged \
--pull=newer \
--security-opt label=type:unconfined_t \
-v $(pwd)/output:/output \
-v /var/lib/containers/storage:/var/lib/containers/storage \
quay.io/centos-bootc/bootc-image-builder:latest \
--rootfs ext4 \
--local \
--type qcow2 \
"${CONTAINER_IMAGE}"
```

I can reproduce this 100% of the time.

Last caveat is that I'm running this on ZFS. Is this expected? Is there a way to make this work on ZFS?