Short version for non-lawyers: The rw-builder crate is dual-licensed under Apache 2.0 and MIT terms. Longer version: Copyrights in the rw-builder crate are retained by their contributors. No copyright assignment is required to contribute to the rw-builder crate. 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 (below and/or in individual files), the rw-builder crate is licensed under the Apache License, Version 2.0 or or the MIT license or , at your option. The rw-builder crate includes packages written by third parties. Their own copyright notices and license terms apply.