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Iceman
@swift-5.5.3 -warn-concurrency struct Box { subscript<T>(bar bar: T) -> T { bar } } let _ = \Box[bar: 1] let _ = \Box[bar: \Int.description] (edited)
swift55 BOT 12/29/2021 11:59 AM
stderr:<stdin>:8:13: warning: cannot form key path that captures non-sendable type '(bar: KeyPath<Int, String>)' let _ = \Box[bar: \Int.description] ^ (edited)