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Clean up E0581 explanation #72137

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May 14, 2020
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Clean up E0581 explanation #72137

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9 changes: 6 additions & 3 deletions src/librustc_error_codes/error_codes/E0581.md
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Original file line number Diff line number Diff line change
@@ -1,4 +1,4 @@
In a `fn` type, a lifetime appears only in the return type,
In a `fn` type, a lifetime appears only in the return type
and not in the arguments types.

Erroneous code example:
Expand All @@ -10,8 +10,11 @@ fn main() {
}
```

To fix this issue, either use the lifetime in the arguments, or use
`'static`. Example:
The problem here is that the lifetime isn't contrained by any of the arguments,
making it impossible to determine how long it's supposed to live.

To fix this issue, either use the lifetime in the arguments, or use the
`'static` lifetime. Example:

```
fn main() {
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