How old are you? I'm closer to 40 than I am 30 and I don't put projects I worked on when I was 22 on my resume. If I can't remember the details, it's not going on my resume. If I can't give good/interesting answers when asked about that project, its not going on my resume. I don't want to fill my resume with a lot of irrelevant crap since I have real experience to put on my resume.
I've worked with many languages both professionally and casually, probably over a dozen over the years. I only put the ones I have mastered on my resume.
If I were conducting an interview for a mid-level position (and I do) and I asked a candidate about their experience in Rust, which is on their resume, and it's anything but over a year of professional or semi-professional development, then I'm going to assume the rest of their resume is just as bogus. A weekend hack-a-thon doesn't "count" as "experience."
As someone who actually has a say in hiring decisions, I'm not going to think highly of a candidate with over 5 years of experience who puts code they only spent the better part of a weekend on on their resume. That means they don't understand what experience actually is.