Error message when trying to parse a random string as a UUID is not helpful

[jplatte]

Describe the bug

When trying to deserialize something that should contain a UUID, but contains some other string that doesn't happen to be 32 or 36 characters long, one gets this error message from serde:

invalid length: expected one of [36, 32], found <something>

This is very unhelpful.

Expected behavior

I would expect the error to state that UUID parsing failed. The fact that it failed at a length check would be nice to have as a detail, but is far less important.

Other

I think a good fix for this would be to change the serde code to wrap the UUID parsing error in format!("UUID parsing failed: {}", e) or something like that. If you want, I'll open a PR.

[KodrAus]

This sounds like a nice improvement to me! Would you be happy to submit a PR @jplatte?

[jplatte]

Will do.