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error[E0308]: mismatched types
--> tests/compile/derive-invalid-strategy.rs:8:24
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8 | #[merge(strategy = my_custom_merge_strategy)]
| ^-----------------------
| |
| ________________________arguments to this function are incorrect
| |
9 | | field1: u8,
| |__________^ expected `u8`, found `&mut u8`
|
note: function defined here
--> tests/compile/derive-invalid-strategy.rs:12:4
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12 | fn my_custom_merge_strategy(left: u8, right: u8) -> u8 {
| ^^^^^^^^^^^^^^^^^^^^^^^^ --------
|
