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error: expected `{`, found `22`
--> $DIR/closure-return-syntax.rs:5:23
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LL | let x = || -> i32 22;
| ^^ expected `{`
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help: try placing this code inside a block
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LL | let x = || -> i32 { 22 };
| + +
error: aborting due to 1 previous error
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