Cloud Hypervisor – Open source virtual machine monitor written in Rust

The README refers to use cases but does not specify any. The focus on implementation language seems to be the whole selling point here. I hope they have more than just "but this time in the programming language I like" as motivation.

What do you think of Microsoft porting cloud-hypervisor to Hyper-V? Could that enable support for other Type-1 hypervisors like Xen?