book/listings/ch03-common-programming-con.../no-listing-19-statements-vs.../output.txt

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$ cargo run
Compiling functions v0.1.0 (file:///projects/functions)
error: expected expression, found `let` statement
--> src/main.rs:2:14
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2 | let x = (let y = 6);
| ^^^
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= note: only supported directly in conditions of `if` and `while` expressions
warning: unnecessary parentheses around assigned value
--> src/main.rs:2:13
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2 | let x = (let y = 6);
| ^ ^
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= note: `#[warn(unused_parens)]` on by default
help: remove these parentheses
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2 - let x = (let y = 6);
2 + let x = let y = 6;
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warning: `functions` (bin "functions") generated 1 warning
error: could not compile `functions` (bin "functions") due to previous error; 1 warning emitted