[Matthias247]

Rust is mostly a systems programming language - like C++. The amount of jobs that require application development in such languages is a lot smaller than e.g. the amount of jobs for generic frontend (Javascript/Typescript) or backend development, since most businesses don't need to build an operating system, database or embedded system. That's why the job market for C++ was even small before Rust even showed up.

Of course one can also use Rust for applications which previously used Java, and still benefit from a stricter type system and a potential efficiency improvement. But the selling proposition becomes a bit tougher. Con's for adopting Rust are the higher complexity, and a potentially reduced developer ecosystem for particular domains which have a ton of Java/C#/Go/Javascript libraries.

[capitainenemo]

People do seem to use it to eliminate random GC spikes, which can matter on the web too.