Rollup of 11 pull requests

[Centril]

Successful merges:

• Misc CI improvements #66090 (Misc CI improvements)
• Add long error explanation for E0594 #66155 (Add long error explanation for E0594)
• Suggest calling async closure when needed #66239 (Suggest calling async closure when needed)
• [doc] Fix the source code highlighting on source comments #66430 ([doc] Fix the source code highlighting on source comments)
• Fix 'type annotations needed' error with opaque types #66431 (Fix 'type annotations needed' error with opaque types)
• Add explanation message for E0641 #66461 (Add explanation message for E0641)
• Add JohnTitor to rustc-guide toolstate notification list #66493 (Add JohnTitor to rustc-guide toolstate notification list)
• std::error::Chain: remove Copy #66511 (std::error::Chain: remove Copy)
• resolve: Give derive helpers highest priority during resolution #66529 (resolve: Give derive helpers highest priority during resolution)
• Move the definition of QueryResult into plumbing.rs. #66536 (Move the definition of QueryResult into plumbing.rs.)
• Remove compiler_builtins_lib feature from libstd #66538 (Remove compiler_builtins_lib feature from libstd)

Failed merges:

r? @ghost