What VSCode extensions do you have for Rust development?

Hello Rust Community, I just step into the world of Rust for a few months now. Along my trip I’ve read some The Book and docs of the crates (which are really amazing btw), as well as some online tutorials. And I’ve found some tutors use extensions that save their time dramatically as in my point of view.

So my question is: What extensions do you have for VSCode?

(Doesn’t have to be Rust specific tho, also I just use VSCode for editor, suggestions for other editors and IDEs are also welcome)