Short version for non-lawyers: tablegen-rs is dual-licensed under Apache 2.0 and MIT terms. Longer version: tablegen-rs is copyright 2016, Alexander Stocko . Licensed under the Apache License, Version 2.0 or the MIT license , at your option. All files in the project carrying such notice may not be copied, modified, or distributed except according to those terms. tablegen-rs includes packages written by third parties. The following third party packages are included, and carry their own copyright notices and license terms: * ctablegen. Code for this package is found in ctablegen/. See ctablegen/COPYRIGHT for details.