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error[E0381]: used binding `x` isn't initialized
--> $DIR/borrowck-uninit.rs:5:9
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LL | let x: isize;
| - binding declared here but left uninitialized
LL | foo(x);
| ^ `x` used here but it isn't initialized
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help: consider assigning a value
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LL | let x: isize = 0;
| +++
error: aborting due to previous error
For more information about this error, try `rustc --explain E0381`.
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