I have ~5500 memory safety fuzz tests, four different test suites with between ~80%-99% line/branch coverage each, and the same design as Rust, and haven't found a memory safety issue in 4 weeks, and I'm still planning another ~4 weeks of testing before release, more if need be.

Rust had memory safety bugs well after release - IIUC all the way until after the 1.0 release.

So, it's highly unlikely to be perfect, but I think it'll be in better shape than Go or Rust were when they initially launched.