From @zoffixznet

Shows up in doc builds​: https://travis-ci.org/perl6/doc/builds/183248892#L1224

https://irclog.perlgeek.de/perl6/2016-12-12#i_13726254

14​:30 jnthn The message does indicate a legit bug, but yes, the (harmless, just not cheap) check should not have been compiled in by default.
14​:30 forgot that one macro was not conditionally defined
14​:31 Please file me an RT about it

From @dogbert17

On Mon, 12 Dec 2016 06​:32​:20 -0800, cpan@​zoffix.com wrote​:

Shows up in doc builds​: https://travis-
ci.org/perl6/doc/builds/183248892#L1224

https://irclog.perlgeek.de/perl6/2016-12-12#i_13726254

14​:30 jnthn The message does indicate a legit bug, but yes, the
(harmless, just not cheap) check should not have been compiled in by
default.
14​:30 forgot that one macro was not conditionally defined
14​:31 Please file me an RT about it

I suspect that this should be closed. All checks of the kind described above are (now) conditional, i.e. dependent on the setting of the MVM_GC_DEBUG flag in MoarVM.

The RT System itself - Status changed from 'new' to 'open'

@AlexDaniel - Status changed from 'open' to 'deleted'

@AlexDaniel - Status changed from 'deleted' to 'open'