I think the most accurate way to say it is that, while Rust compile times are not inherently slow, Rust has in most cases where where a desirable feature was at

I think the most accurate way to say it is that, while Rust compile times are not inherently slow, Rust has in most cases where where a desirable feature was at odds with compile times decided to sacrifice it. So while it is not inherently slow to compile, it was not designed to be easy to compile quickly either.