Hello this is Philip the author of these reports and lead for the GCC Rust project. I feel its only fair to point out that the comment you link to the author is

Hello this is Philip the author of these reports and lead for the GCC Rust project. I feel its only fair to point out that the comment you link to the author is not a "main dev for gccrs". I wrote part of the reasons for why I am working on gccrs here: https://news.ycombinator.com/item?id=28368924 https://news.ycombinator.com/item?id=28368924 Overall I feel sad that this effort has been perceived as some kind of attack against Rustc and its community by some. This effort of mine dates back to 2014 and then I was able to get quite alot of rust working in a short time but the language changed far too much to keep up as a solo effort. Since late 2018 I restarted the effort and seriously almost started the track to develop the a gcc backend using libgccjit, it is 100% something i have considered and thought through. I will be giving a talk on this project at LPC if you wish to hear more about my reasons please listen then https://linuxplumbersconf.org/event/11/contributions/911/ https://linuxplumbersconf.org/event/11/contributions/911/