Deny unsafe operations in unsafe fns in libstd/sync/#74278

Closed

poliorcetics wants to merge 2 commits intorust-lang:masterfrom

poliorcetics:std-sync-unsafe-op-in-unsafe-fn

Commits on Jul 12, 2020

Deny unsafe operations in unsafe fns in libstd/sync/
poliorcetics
committed

Commits on Jul 13, 2020

Improve the SAFETY: comments and use the Arc::{into/from}_raw functions
poliorcetics
committed