I have a large (~140k SLOC) geospatial analysis project written entirely in Rust, and I can confirm that it takes me about 3.5 min to cargo build --release on m

I have a large (~140k SLOC) geospatial analysis project written entirely in Rust, and I can confirm that it takes me about 3.5 min to cargo build --release on my Macbook pro and only about 12 s to cargo check. It is a life saver for productivity although I would still welcome a reduction in those compile times. The data sets that I use to test new tools are often so large that cargo build is not an option for testing. I have to use release mode. I have really enjoyed programming in Rust since starting the project a year and a half ago. If there is one thing I could change about the language it would be the compile times.