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This is pretty epic. @frankmcsherry and @lqd ported the new borrow-check analysis (now dubbed Polonius) to using datafrog, a new lightweight datalog engine by @frankmcsherry. End result: 2x improvement, plus it builds way faster too.https://github.com/rust-lang-nursery/polonius/pull/36#issuecomment-390393717 …
If you're interested in getting involved, there is a starter issue for doing some cleanup here:https://github.com/rust-lang-nursery/polonius/issues/37 …
