Mara 20887b7ebf
Rollup merge of #81939 - kper:fixing-81584-allocate-in-iter, r=davidtwco ...
Add suggestion `.collect()` for iterators in iterators
Closes #81584
```
error[E0515]: cannot return value referencing function parameter `y`
--> main3.rs:4:38
|
4 | ... .map(|y| y.iter().map(|x| x + 1))
| -^^^^^^^^^^^^^^^^^^^^^^
| |
| returns a value referencing data owned by the current function
| `y` is borrowed here
| help: Maybe use `.collect()` to allocate the iterator
```
Added the suggestion: `help: Maybe use `.collect()` to allocate the iterator`
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20887b7ebf