Depends on the code and whether you are doing a release or debug build. I work on a very large rust project (~1m LoC) with a lot of dependencies. We've split it into multiple crates and the compile times don't really frustrate my dev workflow (incremental compilation works well and debug builds are pretty fast anyway). But building in our CI pipeline where we do a fully optimized build (single codegen unit, LTO enabled) it takes a while (~30m) which is annoying when you are waiting for a hotfix to be ready. It's also incredibly resource intensive (mainly linking with LTO enabled) so we've been the bane of our platform teams existence since we need something like 50GB of memory in our build container to do a full release build :)