syntax_data: {"ast_node_type":"other","tokens":[{"end":96,"kind":"keyword","start":0,"text":"///"}]}
source_snippet: /// 1. Borrowing `*x` doesn't prevent assigning to `x`. If `x` is a shared reference, the borrow
context_before: ///
context_after: ///    isn't even tracked. As such we have to add fake borrows of any prefixes of a place.