Cargo is a tool that allows rust projects to declare their various dependencies, and ensure that you'll always get a repeatable build.

to accomplish this goal, cargo does four things:
* introduces two metadata files with various bits of project information.
* fetches and builds your project's dependencies.
* invokes rustc or another build tool with the correct parameters to build
your project.
* introduces conventions, making working with rust projects easier.
cargo downloads your rust project??s dependencies and compiles your project.

this package contains the documentation.