Short version for non-lawyers:`rustix` is triple-licensed under Apache 2.0 with the LLVM Exception,Apache 2.0, and MIT terms.Longer version:Copyrights in the `rustix` project are retained by their contributors.No copyright assignment is required to contribute to the `rustix`project.Some files include code derived from Rust's `libstd`; see the comments inthe code for details.Except as otherwise noted (below and/or in individual files), `rustix`is licensed under: - the Apache License, Version 2.0, with the LLVM Exception   <LICENSE-Apache-2.0_WITH_LLVM-exception> or   <http://llvm.org/foundation/relicensing/LICENSE.txt> - 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.