Indeed, Rust's supply chains story is an absolute horror, and there are countless articles explaining what should be done instead (e.g. https://kerkour.com/rust-stdx)
TL;DR: ditch crates.io and copy Go with decentralized packages based directly on and an extended standard library.
Centralized package managers only add a layer of obfuscation that attackers can use to their advantage.
On the other hand, C / C++ style dependency management is even worse than Rust's... Both in terms of development velocity and dependencies that never get updated.
> countless articles explaining what should be done instead (e.g. https://kerkour.com/rust-stdx)
Don't make me tap the sign: https://news.ycombinator.com/item?id=41727085#41727410
> Centralized package managers only add a layer of obfuscation that attackers can use to their advantage.
They add a layer of convenience. C/C++ are missing that convenience because they aren't as composable and have a long tail of pre-package manager projects.
Java didn't start with packages, but today we have packages. Same with JS, etc.