Add Evolution of Rust compiler errors blog post

Kobzol · Kobzol · commit ad942a42b8d6 · 2025-05-16T16:37:26.000+02:00
diff --git a/draft/2025-05-21-this-week-in-rust.md b/draft/2025-05-21-this-week-in-rust.md
@@ -42,6 +42,8 @@ and just ask the editors to select the category.
 
 ### Observations/Thoughts
 
+* [Evolution of Rust compiler errors](https://kobzol.github.io/rust/rustc/2025/05/16/evolution-of-rustc-errors.html)
+
 ### Rust Walkthroughs
 
 ### Research
