Have you used cargo and crates.io? It is effectively the systems-language successor of Ruby's bundler (designed and (initially) built by the same people), but also paying attention to lessons learnt in npm and Go etc.
Yes, that's what I used—however, I just realized I may have been conflating the difficulty of doing package management in Rust with some packages that I used that were enormously difficult to use or were outdated (speaks to the pre-1.0 thing, I suppose).
