As I recall, provision won't install a compiler if you already have one on your path, so you're probably still using an old compiler ad @fanoush suggested
Espruino is a JavaScript interpreter for low-power Microcontrollers. This site is both a support community for Espruino and a place to share what you are working on.
You can see it does work in the online build at https://github.com/espruino/Espruino/actions so something is presumably up with your system.
As I recall, provision won't install a compiler if you already have one on your path, so you're probably still using an old compiler ad @fanoush suggested