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error[E0053]: method `len` has an incompatible type for trait
--> $DIR/unsafe-trait-impl.rs:8:5
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LL | fn len(&self) -> u32 { *self }
| ^^^^^^^^^^^^^^^^^^^^ expected unsafe fn, found normal fn
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note: type in trait
--> $DIR/unsafe-trait-impl.rs:4:5
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LL | unsafe fn len(&self) -> u32;
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
= note: expected signature `unsafe fn(&u32) -> _`
found signature `fn(&u32) -> _`
error: aborting due to previous error
For more information about this error, try `rustc --explain E0053`.
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