Copyright for rust-rand-chacha source package in Nile V2.0

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Upstream-Name: rust-rand-chacha
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Files:     .cargo_vcs_info.json
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Files:     src/chacha.rs
           src/guts.rs
           src/lib.rs
Copyright: 2018-2020 Developers of the Rand project.
           2019 The CryptoCorrosion Contributors
License:   __UNKNOWN__
 Licensed under the Apache License, Version 2.0 https://www.apache.org/licenses/LICENSE-2.0> or the MIT license
 https://opensource.org/licenses/MIT>, at your
 option. This file may not be copied, modified, or distributed
 except according to those terms.
 .
 ! The ChaCha random number generator.

Files:     LICENSE-MIT
Copyright: 2014 The Rust Project Developers
           2018 Developers of the Rand project
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