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error: missing expression to iterate on in `for` loop
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--> $DIR/missing-expression-in-for-loop.rs:2:14
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LL | for i in {
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| ^
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help: try adding an expression to the `for` loop
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LL | for i in /* expression */ {
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| ++++++++++++++++
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error: aborting due to 1 previous error
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