[bsder]

What are you trading off to get from 90% to 100%?

How about compile speed? Are you willing to wait an extra second to get 100%? How about 10 seconds? A minute? 10 Minutes? An hour?

Rust is notoriously slow at compiling and people have been banging on it for a while. At some point, you have to accept that the language, itself, has properties that make compilation slow.

[kristianp]

Rust packages tend to have large dependency graphs which doesn't help the compile times. I've read the serde is a bit of a hog in that respect, for example. The rust philosophy is for a large language and large library too.

[matesz]

I highly recommend checking out makepad [1] - they have +100k of rust code and the compile time is around 10-15 seconds on commodity hardware. However they are obsessed about performance. They reason for such speedy compile times, like you say, is that makepad has almost no external dependencies.

[1] https://github.com/makepad/makepad/