[Toybox] Horrible microsoft github tests spamming me.

[enh]

On Mon, Aug 3, 2020 at 11:41 PM Rob Landley <rob at landley.net> wrote:
>
> I got email about https://github.com/landley/toybox/runs/940149373 in which one
> of the cpio tests spuriously failed. I cannot cut and paste the failure because
> microsoft github's crammed so much javascript into the reporting page that
> doesn't work.
>
> The last time cpio.c changed was april, the last time tests/cpio.test changed
> was may, and the last time lib/* or any of the scripts/test plumbing changed was
> June.
>
> The test failed for non-obvious reasons which look like a shell race condition
> with | or something? The test is doing a dd to grab a specific byte offset out
> of the file. and the chunk it's looking at starts 8 bytes too early to get a
> match with what it expects. Is this a dd problem? Is the file longer with
> spurious crap inserted earlier in it? Did the container's | insert extra data?
> Who knows, I haven't a clue how to dig any of the build artifacts out of this
> mess, but I got email about it.

yeah, this is where i've been for years with the "found by Android CI"
bugs. one thing i can say is that i'm _not_ seeing this on Android's
CI. (an obvious difference there is that we use toybox dd!)

anyway, the first time i see a failure i just take a mental note to
prime myself for future occurrences and assume cosmic ray/failing
hardware/bad kernel unless i see it again.

the nice thing about CI though is that it doesn't take long before
it's run the tests more often than all the humans put together.

> I thought I was not going to get these emails, and am sad. And to add insult,
> the github email says it's from "Rob Landley", which is very much not the case.

annoyingly, i _want_ to get them, but don't. (and don't know how to
sign up for them either :-( )

> Rob
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