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warning: unnecessary `unsafe` block
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--> $DIR/expr-unsafe.rs:11:13
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LL | unsafe {}
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| ^^^^^^ unnecessary `unsafe` block
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note: the lint level is defined here
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--> $DIR/expr-unsafe.rs:3:9
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LL | #![warn(unused_unsafe)]
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| ^^^^^^^^^^^^^
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warning: 1 warning emitted
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