That's not covered by the survey but I'm wondering how much of Rust usage is driven by crypto-currency projects. I'm personally completely convinced by the Rust language and the ecosystem, and decided to bet on it as my main tool for the next decade or so, but I'm also a bit worried that a lot of the money for Rust roles comes from crypto-currency projects (an industry I'm now very sceptical of given the amount of scam/bullshit we've seen during recent years). Not sure if my worries are warranted given my personal bias. Just something I have in mind.