When I look at this :
"Production use measures our design success; it's the ultimate reality check. Rust takes a unique stance on a number of tradeoffs, which we believe to position it well for writing fast and reliable software. The real test of those beliefs is people using Rust to build large, production systems, on which they're betting time and money."
I see a little bit of haste towards production use. From 'Rust 1.0 is out just last year' to 'We really need successful production use', It does some to be a push from management to justify continued investment in Rust project.