Something I rarely see asked would be: what's the maintenance story with rust?
Do you have metrics about the number of bugs compared to other languages, e.g. go, python?
When you have to add a new feature to an existing rust system, is it easier/harder/the same than with another language?
How easy is it to read old rust code? Obviously, you won't have 10 year old rust codebases, but even reading something I wrote a year ago can be difficult in, e.g. C++.