From @sjn

I'm using 2016.04-74-ga16f0a4​:

$ perl6 --rxtrace -e 'say "hello world"'
Calling parse
  Calling TOP
  Calling target
  Calling comp_unit
Cannot invoke this object
  at gen/moar/m-CORE.setting​:2395 (/home/sjn/.rakudobrew/moar-nom/install/share/perl6/runtime/CORE.setting.moarvm​:push-exactly)
from gen/moar/m-CORE.setting​:4252 (/home/sjn/.rakudobrew/moar-nom/install/share/perl6/runtime/CORE.setting.moarvm​:pull-one)
from gen/moar/m-CORE.setting​:2465 (/home/sjn/.rakudobrew/moar-nom/install/share/perl6/runtime/CORE.setting.moarvm​:sink-all)
from gen/moar/m-CORE.setting​:12942 (/home/sjn/.rakudobrew/moar-nom/install/share/perl6/runtime/CORE.setting.moarvm​:sink)
from gen/moar/m-CORE.setting​:36458 (/home/sjn/.rakudobrew/moar-nom/install/share/perl6/runtime/CORE.setting.moarvm​:resolve_repossession_conflicts)
from <unknown>​:1 (/home/sjn/.rakudobrew/moar-nom/install/share/perl6/runtime/CORE.setting.moarvm​:<dependencies+deserialize>)
from gen/moar/m-ModuleLoader.nqp​:198 (/home/sjn/.rakudobrew/moar-nom/install/share/nqp/lib/Perl6/ModuleLoader.moarvm​:)
from gen/moar/m-ModuleLoader.nqp​:188 (/home/sjn/.rakudobrew/moar-nom/install/share/nqp/lib/Perl6/ModuleLoader.moarvm​:load_setting)
from src/Perl6/World.nqp​:714 (/home/sjn/.rakudobrew/moar-nom/install/share/nqp/lib/Perl6/World.moarvm​:load_setting)
from src/Perl6/World.nqp​:502 (/home/sjn/.rakudobrew/moar-nom/install/share/nqp/lib/Perl6/World.moarvm​:loading_and_symbol_setup)
from src/Perl6/Grammar.nqp​:1157 (/home/sjn/.rakudobrew/moar-nom/install/share/nqp/lib/Perl6/Grammar.moarvm​:comp_unit)
from gen/moar/stage2/nqpmo.nqp​:1313 (/home/sjn/.rakudobrew/moar-nom/install/share/nqp/lib/nqpmo.moarvm​:)
from src/Perl6/Grammar.nqp​:460 (/home/sjn/.rakudobrew/moar-nom/install/share/nqp/lib/Perl6/Grammar.moarvm​:TOP)
from gen/moar/stage2/nqpmo.nqp​:1313 (/home/sjn/.rakudobrew/moar-nom/install/share/nqp/lib/nqpmo.moarvm​:)
from gen/moar/stage2/QRegex.nqp​:2093 (/home/sjn/.rakudobrew/moar-nom/install/share/nqp/lib/QRegex.moarvm​:parse)
from gen/moar/stage2/nqpmo.nqp​:1313 (/home/sjn/.rakudobrew/moar-nom/install/share/nqp/lib/nqpmo.moarvm​:)
from gen/moar/stage2/NQPHLL.nqp​:1795 (/home/sjn/.rakudobrew/moar-nom/install/share/nqp/lib/NQPHLL.moarvm​:parse)
from gen/moar/stage2/NQPHLL.nqp​:1751 (/home/sjn/.rakudobrew/moar-nom/install/share/nqp/lib/NQPHLL.moarvm​:compile)
from gen/moar/stage2/NQPHLL.nqp​:1487 (/home/sjn/.rakudobrew/moar-nom/install/share/nqp/lib/NQPHLL.moarvm​:eval)
from src/Perl6/Compiler.nqp​:161 (/home/sjn/.rakudobrew/moar-nom/install/share/nqp/lib/Perl6/Compiler.moarvm​:eval)
from gen/moar/stage2/NQPHLL.nqp​:1595 (/home/sjn/.rakudobrew/moar-nom/install/share/nqp/lib/NQPHLL.moarvm​:)
from gen/moar/stage2/NQPHLL.nqp​:1592 (/home/sjn/.rakudobrew/moar-nom/install/share/nqp/lib/NQPHLL.moarvm​:command_eval)
from src/Perl6/Compiler.nqp​:29 (/home/sjn/.rakudobrew/moar-nom/install/share/nqp/lib/Perl6/Compiler.moarvm​:command_eval)
from gen/moar/stage2/NQPHLL.nqp​:1576 (/home/sjn/.rakudobrew/moar-nom/install/share/nqp/lib/NQPHLL.moarvm​:command_line)
from gen/moar/m-main.nqp​:37 (/home/sjn/.rakudobrew/moar-nom/install/share/perl6/runtime/perl6.moarvm​:MAIN)
from gen/moar/m-main.nqp​:33 (/home/sjn/.rakudobrew/moar-nom/install/share/perl6/runtime/perl6.moarvm​:<mainline>)
from <unknown>​:1 (/home/sjn/.rakudobrew/moar-nom/install/share/perl6/runtime/perl6.moarvm​:<main>)
from <unknown>​:1 (/home/sjn/.rakudobrew/moar-nom/install/share/perl6/runtime/perl6.moarvm​:<entry>)

From @zoffixznet

Tested with bleed (959cd3b) and this no longer happens.

Tests added​: Raku/roast@4652164eb9

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

@zoffixznet - Status changed from 'open' to 'resolved'