[pull] main from rust-lang:main#97

Merged

pull[bot] merged 13 commits intoUncodedtech:mainfrom

Aug 21, 2025

Commits on Jun 13, 2025

Clarify how to find return type of error4
zeonzip
committed

Commits on Jul 18, 2025

Fix incorrect book chapter number
aCactusOrSomething
committed

Commits on Jul 21, 2025

Add positive tests
deafloo
committed