Short version for non-lawyers:

The Rust Project is dual-licensed under Apache 2.0 and MIT

terms.

It is Copyright (c) The Rust Project Contributors.

Longer version:

Copyrights in the Rust project are retained by their contributors. No

copyright assignment is required to contribute to the Rust project.

Some files include explicit copyright notices and/or license notices.

For full authorship information, see the version control history or

<https://thanks.rust-lang.org>

Except as otherwise noted, Rust is licensed under the Apache License, Version

2.0 <LICENSE-APACHE> or <http://www.apache.org/licenses/LICENSE-2.0> or the MIT

license <LICENSE-MIT> or <http://opensource.org/licenses/MIT>, at your option.

We track licenses for third-party materials in two ways:

* We use [REUSE](https://reuse.software) to track license information for

in-tree source files - both those authored by the Rust project and those

authored by third parties. See `REUSE.toml`, and our cached output of the

`reuse` tool which is committed to `license-metadata.json`.

* We use `cargo` to track license information for out-of-tree dependencies.

These two sources of information are collected by the tool `generate-copyright`

into a file called `COPYRIGHT.html`, which is shipped with each binary release

of Rust. Please refer to that file for detailed information as to the components of

any given Rust release. We also produce a `COPYRIGHT-library.html` file which only

covers the subset of source code used in the Rust Standard Library, as opposed

to the toolchain as a whole.