Best ways to start learning Rust?

If you normally use a search engine for programming questions, I suggest you only look back (up to) 2 years for Rust questions...I found lots of older posts that were outdated...There are tons of Rust learning materials...again, go with recent ones.

Read (and understand) the book; https://doc.rust-lang.org/book/

Then apply whatever knowledge you have from previous languages.

Rocket is a really nice web framework of you're familiar with that field. Otherwise just read the "book".

Do the tour