Auto merge of #52937 - pietroalbini:rollup, r=pietroalbini

Auto merge of #52937 - pietroalbini:rollup, r=pietroalbini

Rollup of 30 pull requests

Successful merges:

 - #52340 (Document From trait implementations for OsStr, OsString, CString, and CStr)
 - #52628 (Cleanup some rustdoc code)
 - #52732 (Remove unstable and deprecated APIs)
 - #52745 (Update clippy to latest master)
 - #52771 (Clarify thread::park semantics)
 - #52778 (Improve readability of serialize.rs)
 - #52810 ([NLL] Don't make "fake" match variables mutable)
 - #52821 (pretty print for std::collections::vecdeque)
 - #52822 (Fix From<LocalWaker>)
 - #52824 (Fix -Wpessimizing-move warnings in rustllvm/PassWrapper)
 - #52825 (Make sure #47772 does not regress)
 - #52831 (remove references to AUTHORS.txt file)
 - #52842 (update comment)
 - #52846 (Add timeout to use of `curl` in bootstrap.py.)
 - #52851 (Make the tool_lints actually usable)
 - #52853 (Improve bootstrap help on stages)
 - #52859 (Use Vec::extend in SmallVec::extend when applicable)
 - #52861 (Add targets for HermitCore (https://hermitcore.org) to the Rust compiler and port libstd to it.)
 - #52867 (releases.md: fix 2 typos)
 - #52870 (Implement Unpin for FutureObj and LocalFutureObj)
 - #52876 (run-pass/const-endianness: negate before to_le())
 - #52878 (Fix wrong issue number in the test name)
 - #52883 (Include lifetime in mutability suggestion in NLL messages)
 - #52888 (Use suggestions for shell format arguments)
 - #52904 (NLL: sort diagnostics by span)
 - #52905 (Fix a typo in unsize.rs)
 - #52907 (NLL: On "cannot move out of type" error, print original before rewrite)
 - #52914 (Only run the sparc-abi test on sparc)
 - #52918 (Backport 1.27.2 release notes)
 - #52929 (Update compatibility note for 1.28.0 to be correct)

Failed merges:

r? @ghost