[$] An update on gccrs development

One concern that has often been expressed about the Rust language is thatthere is only one compiler for it. That makes it hard to say what thestandard version of the language is and restricts the architectures thatcan 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; atthe 2024 GNU ToolsCauldron, Pierre-Emmanuel Patry gave an update on the state of thatwork and what its objectives are.