Chapter 11.3 empty listing

[bewee]

In chapter 11.3 it says "Cargo generated this code for us:" followed by an empty listing. I suspect there should be some code in it?
Edit: Clicking on the eye icon reveals some code. Anyway, I feel like making this visible by default would be less confusing?

[carols10cents]

Yes, this was fixed in #2610. That PR just hasn't ridden the Rust release trains to stable yet. You can read the fixed version at https://doc.rust-lang.org/nightly/book/ch11-03-test-organization.html (nightly in the URL instead of stable). Thanks!