The Cargo Book
The Cargo.toml file for each package is called its manifest. It is written in the TOML format. Every manifest file consists of the following sections: The first section in a Cargo.toml is [package]. [package] name = "hello_world" # the name of the package version = "0.1.0" # the current version, obeying semver authors = ["Alice ", "Bob "] The only fields required by Cargo are and .
https://doc.rust-lang.org/cargo/reference/manifest.html