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error[E0277]: the type `&mut &mut &i32` may not be safely transferred across an unwind boundary
--> $DIR/not-panic-safe.rs:8:14
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LL | assert::<&mut &mut &i32>();
| ^^^^^^^^^^^^^^ `&mut &mut &i32` may not be safely transferred across an unwind boundary
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= help: the trait `UnwindSafe` is not implemented for `&mut &mut &i32`
= note: `UnwindSafe` is implemented for `&&mut &i32`, but not for `&mut &mut &i32`
note: required by a bound in `assert`
--> $DIR/not-panic-safe.rs:5:14
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LL | fn assert<T: UnwindSafe + ?Sized>() {}
| ^^^^^^^^^^ required by this bound in `assert`
help: consider removing 2 leading `&`-references
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LL - assert::<&mut &mut &i32>();
LL + assert::<&i32>();
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error: aborting due to previous error
For more information about this error, try `rustc --explain E0277`.
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