"Hello, Cargo!" chapter in "the rust programming language". Rust is no longer alpha.

[jbethune]

From the book:
https://github.com/rust-lang/rust/blob/master/src/doc/trpl/hello-cargo.md

"Cargo is currently in an alpha state, just like Rust, and so it is still a work in progress."

Rust is no longer in alpha state.