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book: update error message

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Tshepang Lekhonkhobe 2015-06-01 23:06:51 +02:00
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src/doc/trpl/traits.md
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@ -56,7 +56,7 @@ fn print_area<T>(shape: T) {
Rust complains:
```text
error: type `T` does not implement any method in scope named `area`
error: no method named `area` found for type `T` in the current scope
```
Because `T` can be any type, we can’t be sure that it implements the `area`