Kotlin is slowly getting in the industry as well. But really comparing Rust and Java (meaning the JVM, its languages and all the libs and tools) is not fair. They have different targets and respond to different needs. Of course, like everything, there are problems where their capabilities overlap and they would both work really well. But I have trouble believing this "new language that will rule them all" idea. We didn't really see that happen anywhere (or maybe we did and I'm missing an example of that).
Kotlin is meaningless outside Android development.
Kotlin/Native is never going to be a match for other native languages, as its reboot by choosing an incompatible memory model with JVM languages has proven.
While on the JVM, just like trying to replace C on UNIX, JavaScript on the browser, it is just another guest language dancing to Java tunes.
Just another one to share seats between Beanshell, jTCL, Jython, JRuby, Scala, Clojure, Groovy, Ceylon, XTend, without big daddys' help to force adoption down developer throats like they are doing on Android.
