What’s the community’s thoughts on older Rust versions in library crates? Eg, at the moment, nix supports 1.1+, and there’s a GitHub issue attempting to figure out an explicit version support policy. I can see reasonable arguments both for maintaining support for older versions, and for quickly adopting new language and library features as they’re added to stable releases.
Is there anything like a consensus here? Does it make sense to try and support older versions of Rust? Are there any considerations that would depend on what the library does?