That said, I would humbly ask for you to trust my leadership on finding the balance on how much effort to spend on bug fixing versus how much to spend on progress. I think you underestimate how much is going to change before Zig tags 1.0. There are still a few experimental and exploratory changes planned, and when software specifications change, bugs are inevitably introduced. Spending the time to iron out 100% of the bugs found from fuzz testing, on a feature that ends up replaced with a different one that also needs to get debugged, is a waste of time, and a disservice to the wider user base of the project. We're better off finding the "sweet spot" for a swift journey, arriving at our destination early, and then busting out the hardcore QA.
I see https://github.com/ziglang/zig/issues/13211 mentioned elsewhere in this thread. I want to point out that getting the C ABI correct when using LLVM is a notoriously perilous process, as any other compiler dev reading HN today can attest, and this regression which lasted for a total of 6 days in master branch without ever gracing a tagged release, is a symptom of the fact that we actually addressed this C ABI problem at its core, added more test coverage, added an abstraction in the LLVM code generation, and fixed the C ABI for several targets.
And finally, I agree that fuzz testing should be integrated into Zig's unit testing system. That would be a nice enhancement.