Running an Android artifact build w/ the default suggested .mozconfig fails w/ "ValueError: invalid literal for int() with base 10: '@ 494744'"

What is the output of hg log --template '{rev}:{node}\n' -r 'last(public) and ::., {500})' for you?

MJF-MacBookPro:moz-central mfroman$ hg log --template '{rev}:{node}\n' -r 'last(public) and ::., {500})'
hg: parse error at 22: syntax error in revset 'last(public) and ::., {500})'
(last(public) and ::., {500})
                       ^ here)

I ran ./mach vcs-setup --update and got the same error message

Here is the output from hg log --template '{rev}:{node}\n' -r 'last(public() and ::., 500)'

Output for the command: env HGPLAIN=1 hg log --template '{rev}:{node}\n' -r 'last(public() and ::., 500)'

The problem is that when we're trying to find a pushhead for artifact builds:

https://searchfox.org/mozilla-central/source/python/mozbuild/mozbuild/artifacts.py#968-975

we're not properly invoking hg with HGPLAIN=1, so we get extensions, aliases, etc. interfering with the expected output.

There are a couple other instances of hg log in this file that probably need to be addressed, too. Bootstrap handles this, but it handles it in kind of a bootstrap-specific way, so I'm not sure if there's much to be done here beyond duplicating the necessary code.

I wrote a patch to set HGPLAIN, but I'm having trouble reproducing the issue to test. Comment 3 makes it looks like --graph is being passed to log by default, :mjf, have you made this the default in your hgrc? If so it looks like we can pass --no-graph as well during an artifact build.

:chmanchester, I have log aliased to "log -G" in my .hgrc file.

Backed out changeset 45f760e2a4c1 (bug 1583234) when causing linting failures

push that casued the backout:
https://treeherder.mozilla.org/#/jobs?repo=autoland&resultStatus=testfailed%2Cbusted%2Cexception%2Cusercancel%2Crunnable&revision=45f760e2a4c1f56747c6ff79ecd3f7eb59108976&selectedJob=269137455

backout: https://hg.mozilla.org/integration/autoland/rev/06853f21480b55cfa64d1779ded3b3cf778c5cbc

https://hg.mozilla.org/mozilla-central/rev/e72742f591f8

I can confirm a successful artifact build on macOS.