$ perl6 --ll-exception t/meta.t
P6M Merging GLOBAL symbols failed: duplicate definition of symbol Lint
   at gen/moar/m-CORE.setting:20096  (/home/sjn/.rakudobrew/moar-nom/install/share/perl6/runtime/CORE.setting.moarvm:throw:215)
 from gen/moar/m-CORE.setting:34471  (/home/sjn/.rakudobrew/moar-nom/install/share/perl6/runtime/CORE.setting.moarvm::15)
 from gen/moar/m-CORE.setting:34469  (/home/sjn/.rakudobrew/moar-nom/install/share/perl6/runtime/CORE.setting.moarvm::47)
 from <unknown>:1  (/home/sjn/.rakudobrew/moar-nom/install/share/perl6/runtime/CORE.setting.moarvm::18)
 from gen/moar/m-ModuleLoader.nqp:170  (/home/sjn/.rakudobrew/moar-nom/install/share/nqp/lib/Perl6/ModuleLoader.moarvm:merge_globals:280)
 from gen/moar/m-ModuleLoader.nqp:158  (/home/sjn/.rakudobrew/moar-nom/install/share/nqp/lib/Perl6/ModuleLoader.moarvm:merge_globals:210)
 from gen/moar/m-CORE.setting:18054  (/home/sjn/.rakudobrew/moar-nom/install/share/perl6/runtime/CORE.setting.moarvm:merge-symbols:63)
 from src/Perl6/World.nqp:979  (/home/sjn/.rakudobrew/moar-nom/install/share/nqp/lib/Perl6/World.moarvm:load_module:187)
 from src/Perl6/World.nqp:909  (/home/sjn/.rakudobrew/moar-nom/install/share/nqp/lib/Perl6/World.moarvm:do_pragma_or_load_module:151)
 from src/Perl6/Grammar.nqp:1530  (/home/sjn/.rakudobrew/moar-nom/install/share/nqp/lib/Perl6/Grammar.moarvm:statement_control:sym<use>:1281)
 from gen/moar/stage2/QRegex.nqp:1379  (/home/sjn/.rakudobrew/moar-nom/install/share/nqp/lib/QRegex.moarvm:!protoregex:109)
 from <unknown>:1  (/home/sjn/.rakudobrew/moar-nom/install/share/nqp/lib/Perl6/Grammar.moarvm:statement_control:10)
 from src/Perl6/Grammar.nqp:1225  (/home/sjn/.rakudobrew/moar-nom/install/share/nqp/lib/Perl6/Grammar.moarvm:statement:371)
 from src/Perl6/Grammar.nqp:1154  (/home/sjn/.rakudobrew/moar-nom/install/share/nqp/lib/Perl6/Grammar.moarvm:statementlist:241)
 from src/Perl6/Grammar.nqp:2331  (/home/sjn/.rakudobrew/moar-nom/install/share/nqp/lib/Perl6/Grammar.moarvm:package_def:2816)
 from <unknown>:1  (/home/sjn/.rakudobrew/moar-nom/install/share/nqp/lib/Perl6/Grammar.moarvm:package_declarator:sym<module>:175)
 from gen/moar/stage2/QRegex.nqp:1379  (/home/sjn/.rakudobrew/moar-nom/install/share/nqp/lib/QRegex.moarvm:!protoregex:109)
 from <unknown>:1  (/home/sjn/.rakudobrew/moar-nom/install/share/nqp/lib/Perl6/Grammar.moarvm:package_declarator:10)
 from src/Perl6/Grammar.nqp:2417  (/home/sjn/.rakudobrew/moar-nom/install/share/nqp/lib/Perl6/Grammar.moarvm:scoped:378)
 from <unknown>:1  (/home/sjn/.rakudobrew/moar-nom/install/share/nqp/lib/Perl6/Grammar.moarvm:scope_declarator:sym<unit>:107)
 from gen/moar/stage2/QRegex.nqp:1379  (/home/sjn/.rakudobrew/moar-nom/install/share/nqp/lib/QRegex.moarvm:!protoregex:109)
 from <unknown>:1  (/home/sjn/.rakudobrew/moar-nom/install/share/nqp/lib/Perl6/Grammar.moarvm:scope_declarator:10)
 from <unknown>:1  (/home/sjn/.rakudobrew/moar-nom/install/share/nqp/lib/Perl6/Grammar.moarvm:term:sym<scope_declarator>:57)
 from gen/moar/stage2/QRegex.nqp:1379  (/home/sjn/.rakudobrew/moar-nom/install/share/nqp/lib/QRegex.moarvm:!protoregex:109)
 from <unknown>:1  (/home/sjn/.rakudobrew/moar-nom/install/share/nqp/lib/Perl6/Grammar.moarvm:term:10)
 from src/Perl6/Grammar.nqp:3733  (/home/sjn/.rakudobrew/moar-nom/install/share/nqp/lib/Perl6/Grammar.moarvm:termish:410)
 from gen/moar/stage2/NQPHLL.nqp:683  (/home/sjn/.rakudobrew/moar-nom/install/share/nqp/lib/NQPHLL.moarvm:EXPR:74)
 from src/Perl6/Grammar.nqp:3768  (/home/sjn/.rakudobrew/moar-nom/install/share/nqp/lib/Perl6/Grammar.moarvm:EXPR:28)
 from src/Perl6/Grammar.nqp:1225  (/home/sjn/.rakudobrew/moar-nom/install/share/nqp/lib/Perl6/Grammar.moarvm:statement:401)
 from src/Perl6/Grammar.nqp:1154  (/home/sjn/.rakudobrew/moar-nom/install/share/nqp/lib/Perl6/Grammar.moarvm:statementlist:241)
 from gen/moar/stage2/NQPHLL.nqp:907  (/home/sjn/.rakudobrew/moar-nom/install/share/nqp/lib/NQPHLL.moarvm:LANG:146)
 from src/Perl6/Grammar.nqp:1544  (/home/sjn/.rakudobrew/moar-nom/install/share/nqp/lib/Perl6/Grammar.moarvm:FOREIGN_LANG:67)
 from src/Perl6/Grammar.nqp:1138  (/home/sjn/.rakudobrew/moar-nom/install/share/nqp/lib/Perl6/Grammar.moarvm:comp_unit:1029)
 from src/Perl6/Grammar.nqp:441  (/home/sjn/.rakudobrew/moar-nom/install/share/nqp/lib/Perl6/Grammar.moarvm:TOP:524)
 from gen/moar/stage2/QRegex.nqp:2093  (/home/sjn/.rakudobrew/moar-nom/install/share/nqp/lib/QRegex.moarvm:parse:44)
 from gen/moar/stage2/NQPHLL.nqp:1594  (/home/sjn/.rakudobrew/moar-nom/install/share/nqp/lib/NQPHLL.moarvm:parse:80)
 from gen/moar/stage2/NQPHLL.nqp:1550  (/home/sjn/.rakudobrew/moar-nom/install/share/nqp/lib/NQPHLL.moarvm:compile:200)
 from gen/moar/m-CORE.setting:34461  (/home/sjn/.rakudobrew/moar-nom/install/share/perl6/runtime/CORE.setting.moarvm:load-source:68)
 from gen/moar/m-CORE.setting:34453  (/home/sjn/.rakudobrew/moar-nom/install/share/perl6/runtime/CORE.setting.moarvm:load-source-file:51)
 from gen/moar/m-CORE.setting:35307  (/home/sjn/.rakudobrew/moar-nom/install/share/perl6/runtime/CORE.setting.moarvm::10)
 from gen/moar/m-CORE.setting:29461  (/home/sjn/.rakudobrew/moar-nom/install/share/perl6/runtime/CORE.setting.moarvm:METAOP_TEST_ASSIGN:<||>:36)
 from gen/moar/m-CORE.setting:35307  (/home/sjn/.rakudobrew/moar-nom/install/share/perl6/runtime/CORE.setting.moarvm::242)
 from gen/moar/m-CORE.setting:35288  (/home/sjn/.rakudobrew/moar-nom/install/share/perl6/runtime/CORE.setting.moarvm::220)
 from gen/moar/m-CORE.setting:35249  (/home/sjn/.rakudobrew/moar-nom/install/share/perl6/runtime/CORE.setting.moarvm:need:72)
 from src/Perl6/World.nqp:978  (/home/sjn/.rakudobrew/moar-nom/install/share/nqp/lib/Perl6/World.moarvm:load_module:166)
 from src/Perl6/World.nqp:909  (/home/sjn/.rakudobrew/moar-nom/install/share/nqp/lib/Perl6/World.moarvm:do_pragma_or_load_module:151)
 from src/Perl6/Grammar.nqp:1530  (/home/sjn/.rakudobrew/moar-nom/install/share/nqp/lib/Perl6/Grammar.moarvm:statement_control:sym<use>:1281)
 from gen/moar/stage2/QRegex.nqp:1379  (/home/sjn/.rakudobrew/moar-nom/install/share/nqp/lib/QRegex.moarvm:!protoregex:109)
 from <unknown>:1  (/home/sjn/.rakudobrew/moar-nom/install/share/nqp/lib/Perl6/Grammar.moarvm:statement_control:10)
 from src/Perl6/Grammar.nqp:1225  (/home/sjn/.rakudobrew/moar-nom/install/share/nqp/lib/Perl6/Grammar.moarvm:statement:371)
 from src/Perl6/Grammar.nqp:1154  (/home/sjn/.rakudobrew/moar-nom/install/share/nqp/lib/Perl6/Grammar.moarvm:statementlist:241)
 from gen/moar/stage2/NQPHLL.nqp:907  (/home/sjn/.rakudobrew/moar-nom/install/share/nqp/lib/NQPHLL.moarvm:LANG:146)
 from src/Perl6/Grammar.nqp:1544  (/home/sjn/.rakudobrew/moar-nom/install/share/nqp/lib/Perl6/Grammar.moarvm:FOREIGN_LANG:67)
 from src/Perl6/Grammar.nqp:1138  (/home/sjn/.rakudobrew/moar-nom/install/share/nqp/lib/Perl6/Grammar.moarvm:comp_unit:1029)
 from src/Perl6/Grammar.nqp:441  (/home/sjn/.rakudobrew/moar-nom/install/share/nqp/lib/Perl6/Grammar.moarvm:TOP:524)
 from gen/moar/stage2/QRegex.nqp:2093  (/home/sjn/.rakudobrew/moar-nom/install/share/nqp/lib/QRegex.moarvm:parse:44)
 from gen/moar/stage2/NQPHLL.nqp:1594  (/home/sjn/.rakudobrew/moar-nom/install/share/nqp/lib/NQPHLL.moarvm:parse:80)
 from gen/moar/stage2/NQPHLL.nqp:1550  (/home/sjn/.rakudobrew/moar-nom/install/share/nqp/lib/NQPHLL.moarvm:compile:200)
 from gen/moar/stage2/NQPHLL.nqp:1287  (/home/sjn/.rakudobrew/moar-nom/install/share/nqp/lib/NQPHLL.moarvm:eval:62)
 from gen/moar/stage2/NQPHLL.nqp:1507  (/home/sjn/.rakudobrew/moar-nom/install/share/nqp/lib/NQPHLL.moarvm:evalfiles:91)
 from gen/moar/stage2/NQPHLL.nqp:1401  (/home/sjn/.rakudobrew/moar-nom/install/share/nqp/lib/NQPHLL.moarvm:command_eval:214)
 from src/Perl6/Compiler.nqp:69  (/home/sjn/.rakudobrew/moar-nom/install/share/nqp/lib/Perl6/Compiler.moarvm:command_eval:93)
 from gen/moar/stage2/NQPHLL.nqp:1375  (/home/sjn/.rakudobrew/moar-nom/install/share/nqp/lib/NQPHLL.moarvm:command_line:114)
 from gen/moar/m-main.nqp:37  (/home/sjn/.rakudobrew/moar-nom/install/share/perl6/runtime/perl6.moarvm:MAIN:18)
 from gen/moar/m-main.nqp:33  (/home/sjn/.rakudobrew/moar-nom/install/share/perl6/runtime/perl6.moarvm:<mainline>:189)
 from <unknown>:1  (/home/sjn/.rakudobrew/moar-nom/install/share/perl6/runtime/perl6.moarvm:<main>:8)
 from <unknown>:1  (/home/sjn/.rakudobrew/moar-nom/install/share/perl6/runtime/perl6.moarvm:<entry>:9)