Oh I believe you but as you point out we need ASAN to make Rust codebases safer too. One of the things that's helped Rust be successful is that we're able to qu

Oh I believe you but as you point out we need ASAN to make Rust codebases safer too. One of the things that's helped Rust be successful is that we're able to quickly write bindings for legacy C/C++/FORTRAN code using the unsafe keyword. The last Rust codebase I worked on had about 70k unsafe lines. One day Rust will be complete and we will rewrite all the legacy code but until then we depend on the low level C tooling to provide assurances like byte-granular invalid address access trapping.