Gccrs — the Rust front-end for GCC — has been approved
for merging into the GCC trunk. That means that the next GCC release will
be able to compile Rust, sort of; as gccrs developer Arthur Cohen warns:
“This is very much an extremely experimental compiler and will still get
a lot of changes in the coming weeks and months up until the release“.
See this article and this one for more details on the current
status of gccrs.

Source: LWN.net – Rust support coming to GCC