I run rustcoach, an AI-guided Rust course. This is the free, no-signup part of it: a 30-question test across core Rust, async/Tokio, macros, concurrency/atomics and the type system, plus a 20-question test for each of those areas if you want to dig depper (also free, no registration). At the end you get a level, a per-area breakdown and a suggestion of what to learn next.

I don't know any other site which allows you to test your Rust knowledge in a comprehensive way like mine but would be great to hear about others and/or suggestions to this one.

You can take it multiple times and will get a different set of questions either in general rust category or if you are brave enough and know deeper any other popular areas of Rust like macros, async with Tokio etc you can try your luck there. There is over 600 questions in the pool.

The general test with 30 questions should take more or less around 10 mintues but of course every one reads code at different speed so the time needed to complete the test may vary - and reading the questions really carefully is very important in this case :)

Hope you like it, if so share it, comment and let's become better Rust programmers. I have a feeling that with AI doing all the work now, this will be rather diminishing skill in the IT world.

The compiler can confirm that a snippet does what the answer says.