Rust is 8 years old and is still not fully stable (you need nightly for a lot of projects). Projects are planning and adding support but not many are actually using it yet.
Java was the hotest thing on the job market after only 3-4 years.
Your reasoning is not quite correct (rust’s nightly has no relevance here), but you are right in that Java seen an unprecedented growth, and probably no other language will ever demonstrate anything like that due to the “market” being so saturated since. Even if it would be the silver bullet language.
