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Rollup merge of #72137 - GuillaumeGomez:cleanup-e0581, r=Dylan-DPC

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Clean up E0581 explanation

r? @Dylan-DPC
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Ralf Jung 2020-05-14 10:22:55 +02:00 • committed by GitHub
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9
src/librustc_error_codes/error_codes/E0581.md
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@ -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:
@ -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() {