alt Hacker News> In general, the bootstrap relies on a binary package of the previous version. This is unacceptable for an otherwise source-only, self-contained distribution like the NetBSD sources.
This does not paint the full picture. Rust can be bootstrapped with mrustc, which is written in C++
https://github.com/thepowersgang/mrustc
Now, mrustc supports only Rust 1.74. To build Rust 1.92, you need almost 20 builds. But this can be done from source
Guix has written about bootstrapping Rust from source (they care a lot about this). Here is how it looked like in 2018
And this is good because? Seriously, modern devs have lost their minds if they think that this state of affairs is okay.