If you don't mind going through a 40-page free e-book from O'Reilly, I can strongly recommend this: https://www.oreilly.com/programming/free/why-rust.csp (Direct link: https://www.oreilly.com/programming/free/files/why-rust.pdf)

It explains the concepts and strengths of Rust in a very easy-to-understand way. (Jim Blandy is also the Author of the O'Reilly Rust book.)

While I appreciate the direct link that bypasses the email form, here's the page describing the report and its author:

http://www.oreilly.com/programming/free/why-rust.csp

"One of the original designers of the Subversion version control system, [Jim Blandy is] a committer to the SpiderMonkey JavaScript engine, and has been a maintainer of GNU Emacs, GNU Guile, and GDB."