[cantankerous]

Last I checked compilation time wasn't really a thing a ton of folks worry about (myself included). Faster machines and reasonably better compilers have mostly solved this problem. I'd take zero-overhead generics over a slightly faster compiler any day of the week.

[rcxdude]

(incremental) compilation needs to be fast enough. A too-slow build cycle can really kill productivity, both in trying out new ideas for code and in debugging. The build times of the rust compiler are pretty close to the limit of what I'll tolerate, and I would really love to have compilation speeds similar to go.

[comex]

Speak for yourself - slow compilation drives me crazy, as it increases the latency between making a change and seeing the result. Not that I believe that generics require slow compilation.

[LamaOfRuin]

Fast build time is explicitly something Go was built for, to fix 40 minute compile times.