How do I fix Encodable/Decodable deprecation?

Question

A few repos (e.g. https://github.com/sebcrozet/nalgebra) have errors along the lines of

warning: deriving(Decodable) is deprecated in favor of deriving(RustcDeco         


        

Answer 1

I got this working by using 0.2 version of rustc-serialize:

[dependencies]
rustc-serialize = "0.2"