Rust's backtraces moving to be native Rust: https://github.com/rust-lang/rust/pull/74682/commits/06d565c967bfb7c6ff52a991bbe47b4a2a25de3e
This prevents malformed DWARF info leading to security issues, an avenue for vulnerabilities I'd not considered before. https://twitter.com/Brittain_Ben/status/1288193388588740615
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Difftastic 0.71 is out! This is a polish release, still well worth upgrading:
* A ton of performance improvements, especially for nasty corner cases.
* Improved C++, Dockerfile, Haskell, JavaScript, Makefile, Perl, Ruby, Rust, Scala and TypeScript.
The literal 0xffu8 in Rust is pretty tricky to read without syntax highlighting. It looks like a plain hexadecimal value at first.
(Why not have syntax highlighting? Ironically I was debugging and improving VS Code's Rust highlighting.)
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It's really satisfying fixing crashes in rust-analyzer. You can start from a panic message and dig until you've got a tiny Rust program that triggers the problem.
(It's usually an issue with incomplete source files breaking invariants.)