this post was submitted on 03 Jan 2024
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not exactly, as there are rust compilers like mrust that don't actually have borrow checkers and virtually none of those safety checks actually occur and there is a question of if the gcc rust compiler would be implementing that feature into the compiler.
So, that would be an attribution failure; as it isn't required by the language but the most popular rust compiler does include that feature.
But yes, more compilers would likely benefit the languages they support by also adopting that feature by default.
Borrow checking is part of the language specification, and a compiler that does not include it is, by definition, incomplete. The authors of mrust even state this in the project README.
Your claim is roughly equivalent to saying a C compiler which does not produce an error when a program calls an undeclared function means that C as a language does not ensure that your code doesn’t call functions that don’t exist - i.e., nonsense at worst, and irrelevant at best.