Rollup of 7 pull requests

[jhpratt]

Successful merges:

• Make missing_abi lint warn-by-default. #132397 (Make missing_abi lint warn-by-default.)
• ci: Enable opt-dist for dist-aarch64-linux builds #133807 (ci: Enable opt-dist for dist-aarch64-linux builds)
• Convert struct FromBytesWithNulError into enum #134143 (Convert struct FromBytesWithNulError into enum)
• Use a C-safe return type for __rust_[ui]128_* overflowing intrinsics #134338 (Use a C-safe return type for __rust_[ui]128_* overflowing intrinsics)
• Update ReadDir::next in std::sys::pal::unix::fs to use &raw const (*p).field instead of p.byte_offset().cast() #134678 (Update ReadDir::next in std::sys::pal::unix::fs to use &raw const (*p).field instead of p.byte_offset().cast())
• Detect unstable lint docs that dont enable their feature #135424 (Detect unstable lint docs that dont enable their feature)
• Make sure we actually use the right trivial lifetime substs when eagerly monomorphizing drop for ADTs #135520 (Make sure we actually use the right trivial lifetime substs when eagerly monomorphizing drop for ADTs)

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