More than just Swift has been influenced by various ideas in Rust. Zig and Vlang are among such other newer, easier, modern features having and somewhat safer languages who claim and show influence.

Languages like Golang, can make a good argument of being the VHS to Betamax, because it is among the easier to learn memory safe languages. Golang is much more strongly positioned to take over C#, Java, and even Python spaces. Not just technically, as a language, but because of the large corporate machinery and jobs behind it, that is the result of being a Google product.

As for Rust's main claim to fame, memory safety, lots of other lesser known languages are hard at work to become direct viable alternatives to Rust. Some of them are: Hylo, Vale, Lobster, etc... Vlang, while not quite trying to aim as high as the others (on memory safety), uses an optional GC (like Nim and Dlang), and is among the safer languages. It then becomes a question of how much the extra burden of Rust is needed, for the project in question.