Thanks, you comment definitely makes me want to try Rust.

Could you tell me, can I use Rust as general purpose application language? Something like: create small executable app (win,unix,mac) that read some files, and do something with it, create GUI app that connects to DB and do something with it, etc?

Machine codes, yes.

Ah, thanks for explanation, if you implemented DRM/security then it all make sense.

Like just now? Why both?

It make sense in any project that created by more than one person I suppose.

Yeah. All the same. Create lazy metric - get lazy and useless results.

Judging by quality of Google search results I believe experienced devs have the same problems with Google as well..

I could be wrong but assert used practically everytime while writing unit / integration tests. Practically every test contains form of asset, could be standard Java assert keyword, or, more often JUnit Assert class.