The manifest – Cargo.toml

The Cargo.toml file follows—as the name suggests—the TOML structure. It's handwritten and contains metadata about the project as well as dependencies, links to other resources, build profiles, examples, and much more. Most of them are optional and have reasonable defaults. In fact, the cargo new command generates the minimal version of a manifest:

[package]
name = "ch2"
version = "0.1.0"
authors = ["Claus Matzinger"]
edition = "2018"

[dependencies]

There are many more sections and properties, and we will present a few important ones here.