[ncmncm]

People "doing that all the time" for any language are exactly, equally obnoxious. (But, it must be said, they do it less.) The only exceptions are for a library, or when the language is apparently unsuited to or incapable of the task.

"I wrote a web browser in Apple ][ Integer BASIC" would mean something.

The natural inference about crowing "in Rust" is that you really did not expect to succeed.