Cleaner error handeling?

[mabushey]

I have a subtitle with this:

857
00:46:28,703 --> 00:46:30,288

erenotgonna supportthat

Obviously this is a problem srt. This crate gives:

thread 'main' panicked at 'parser error: Error { inner: Error { inner: ParseIntError { kind: InvalidDigit }

expected SubRip index line, found 'erenotgonna supportthat'

Which isn't horrible but seems like it could have a more graceful crash, or better yet handle the extra return. My guess is it got this way from someone editing a subtitle and removing [Ruby] (Persons name) w/o removing the return.