Revert "compiler/rustc_data_structures/src/sync/worker_local.rs: delete "unsafe impl Sync""#137996

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bors merged 1 commit intorust-lang:masterfrom safinaskar:2025-03-04-revert-parallel

Mar 5, 2025

+6-5

Commits on Mar 4, 2025

Revert "compiler/rustc_data_structures/src/sync/worker_local.rs: delete "unsafe impl Sync""
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