[$] An update on gccrs development

One concern that has often been expressed about the Rust language is that
there is only one compiler for it. That makes it hard to say what the
standard version of the language is and restricts the architectures that
can be targeted by Rust code to those that the available compiler supports.
Adding a Rust frontend to GCC would do much to address those concerns; at
the 2024 GNU Tools
Cauldron, Pierre-Emmanuel Patry gave an update on the state of that
work and what its objectives are.