We could also use the snippets logic we use for spanned errors, so you'd get it in the same format and style (red error followed by the message)

Yeah that would be the other option I guess. We need to be careful to make this still clearly "smaller" than the separator that introduces the messages for each test failure:

tests/fail/function_pointers/abi_mismatch_simple.rs FAILED:

Maybe if it looks like this that is enough?

<underline><bold><red>FAILED TEST:</red> tests/fail/function_pointers/abi_mismatch_simple.rs</bold></underline>

<bold><red>error:</red> bad exit status</bold>

<bold><red>error:</red> substring not found</bold>
{span printed}

<bold><red>error:</red> unmatched diagnostics</bold>
{span printed}

The all-caps and the underline then hopefully clearly separate multiple failed tests.

Yea that sounds good to me.

This looks better I think, but it's not entirely the same tone of red somehow...

Though rustc and cargo are not consistent either.^^

Anyway I made it all bright_red, now it is consistent within ui_test. I left diff at red though, not sure which one git diff uses.

I think git diff uses the darker red.

Updated screenshot:

I love it, thanks!

Yeah I'm quite happy with it. Can't wait to see it in Miri. Just needs a release now. nudge wink ;)

I can do releases from gha, I just can't do the version bump from it 😃

I'll do both tomorrow

No worries, not urgent at all. :)