Edit description of invalid array access

[Amjad50]

Fix the description in response to a comment from the previous PR #2446 .

fixes #2417

Can you review? @Lonami, @steveklabnik

[Lonami]

Looks good to me but I'm pretty sure my wording can be improved. I'll let that job to other reviewers.

[steveklabnik]

I think I'm okay with this (once the extra bolding is removed) but would like @carols10cents 's opinion too.

[Amjad50]

@carols10cents can you please review this PR?

[ibraheemdev]

Shouldn't it say

Building this code using cargo build produces the following result

Instead of

Running this code using cargo run produces the following result:

Since the point of the example is to show compile-time safety?

[ibraheemdev]

This issue has caused numerous issues and questions over the past couple months. Can we follow through with the review process?

[Amjad50]

Yes of course, thanks for the suggestion

[carols10cents]

@Amjad50 thank you so much for working on this! However, the point of this example is to show the runtime error and demonstrate that there are some safety checks that happen at runtime rather than compile time. I'd rather change the example to something along the lines of this example but not quite that... I'm not sure what yet though, I need some time to think about it.

In the meantime, I'm going to close this PR because I don't think this is the direction we should go.