Fun fact, in the pre-1.0 days Rust did try to provide a batteries-included stdlib, and came to the exact same conclusions as you have. :P In the run-up to 1.0 a

Fun fact, in the pre-1.0 days Rust did try to provide a batteries-included stdlib, and came to the exact same conclusions as you have. :P In the run-up to 1.0 an enormous number of modules were jettisoned from std and into the then-new crates.io. I'm not opposed to having a larger Rust stdlib, but it is better to at least let subject domain experts hack on the problem for a while until, perhaps, the community standardizes on a de facto API.