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error[E0716]: temporary value dropped while borrowed
--> $DIR/tail-expr-in-nested-expr.rs:4:15
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LL | let _ = { String::new().as_str() }.len();
| ^^^^^^^^^^^^^ - --- borrow later used by call
| | |
| | temporary value is freed at the end of this statement
| creates a temporary value which is freed while still in use
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= note: consider using a `let` binding to create a longer lived value
error: aborting due to 1 previous error
For more information about this error, try `rustc --explain E0716`.
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