Description
The copyrights to various parts of Rust are owned by the individual contributors, with the exception that the Mozilla Foundation owns the copyrights to code contributed by moco employees.
The file COPYRIGHT indicates that Rust copyright is owned by 'The Rust Project Developers'. This is probably the most accurate description we have. It doesn't mention the Mozilla Foundation but if you consider the foundation to be a Rust project developer then it still could be accurate.
LICENSE-APACHE contains the template Copyright [yyyy] [name of copyright owner]
instead of a proper year and owner. This may be ok to leave as is since COPYRIGHT explicitly says who is using this license.
LICENSE-MIT says
Copyright (c) 2006-2009 Graydon Hoare
Copyright (c) 2009-2013 Mozilla Foundation
This is not correct since it claims all copyright for Rust after 2009 for the Mozilla Foundation.
If we think 'The Rust Project Developers' is the appropriate way to include everybody with a stake, then the Apache file should probably say 2013 The Rust Project Developers
and MIT should say
Copyright (c) 2006-2009 Graydon Hoare
Copyright (c) 2009-2013 The Rust Project Developers