Apparent precompilation bug in Lock

gistfile1.txt

The below only happens when the module containing the OO::MOnitors "monitor" is pre-compiled:  28 of OO/Monitors.pm is in a catch, 25 is $!.lock

Cannot invoke this object (REPR: Null, cs = 0)
   at lib/OO/Monitors.pm:28  (/home/jonathan/.rakudobrew/moar-nom/install/share/perl6/site/lib/OO/Monitors.pm.moarvm::11)
 from <unknown>:1  (/home/jonathan/.rakudobrew/moar-nom/install/share/perl6/site/lib/OO/Monitors.pm.moarvm::18)
 from lib/OO/Monitors.pm:25  (/home/jonathan/.rakudobrew/moar-nom/install/share/perl6/site/lib/OO/Monitors.pm.moarvm::53)
 from src/gen/m-Metamodel.nqp:3560  (/home/jonathan/.rakudobrew/moar-nom/install/share/nqp/lib/Perl6/Metamodel.moarvm:enter:28)
 from src/gen/m-CORE.setting:4763  (/home/jonathan/.rakudobrew/moar-nom/install/share/perl6/runtime/CORE.setting.moarvm:CALL-ME:60)
 from src/gen/m-BOOTSTRAP.nqp:2752  (/home/jonathan/.rakudobrew/moar-nom/install/share/nqp/lib/Perl6/BOOTSTRAP.moarvm::93)
 from lib/Audio/Libshout.pm:697  (/home/jonathan/.rakudobrew/moar-nom/install/share/perl6/site/lib/Audio/Libshout.pm.moarvm:BUILD:78)
 from src/gen/m-CORE.setting:643  (/home/jonathan/.rakudobrew/moar-nom/install/share/perl6/runtime/CORE.setting.moarvm:AUTOGEN:50)
 from src/gen/m-CORE.setting:986  (/home/jonathan/.rakudobrew/moar-nom/install/share/perl6/runtime/CORE.setting.moarvm::72)
 from src/gen/m-CORE.setting:980  (/home/jonathan/.rakudobrew/moar-nom/install/share/perl6/runtime/CORE.setting.moarvm:BUILDALL:71)
 from src/gen/m-CORE.setting:969  (/home/jonathan/.rakudobrew/moar-nom/install/share/perl6/runtime/CORE.setting.moarvm:bless:40)
 from src/gen/m-CORE.setting:955  (/home/jonathan/.rakudobrew/moar-nom/install/share/perl6/runtime/CORE.setting.moarvm:new:23)
 from src/gen/m-CORE.setting:954  (/home/jonathan/.rakudobrew/moar-nom/install/share/perl6/runtime/CORE.setting.moarvm:new:42)
 from examples/streamfile-encode:30  (<ephemeral file>:MAIN:215)
 from examples/streamfile-encode:10  (<ephemeral file>:MAIN:24)
 from src/gen/m-CORE.setting:20961  (/home/jonathan/.rakudobrew/moar-nom/install/share/perl6/runtime/CORE.setting.moarvm:MAIN_HELPER:297)
 from examples/streamfile-encode:10  (<ephemeral file>:<unit>:37)
 from examples/streamfile-encode:1  (<ephemeral file>:<unit-outer>:10)
 from gen/moar/stage2/NQPHLL.nqp:1289  (/home/jonathan/.rakudobrew/moar-nom/install/share/nqp/lib/NQPHLL.moarvm:eval:190)
 from gen/moar/stage2/NQPHLL.nqp:1492  (/home/jonathan/.rakudobrew/moar-nom/install/share/nqp/lib/NQPHLL.moarvm:evalfiles:91)
 from gen/moar/stage2/NQPHLL.nqp:1386  (/home/jonathan/.rakudobrew/moar-nom/install/share/nqp/lib/NQPHLL.moarvm:command_eval:214)
 from src/Perl6/Compiler.nqp:59  (/home/jonathan/.rakudobrew/moar-nom/install/share/nqp/lib/Perl6/Compiler.moarvm:command_eval:93)
 from gen/moar/stage2/NQPHLL.nqp:1360  (/home/jonathan/.rakudobrew/moar-nom/install/share/nqp/lib/NQPHLL.moarvm:command_line:116)
 from src/gen/m-main.nqp:39  (/home/jonathan/.rakudobrew/moar-nom/install/share/perl6/runtime/perl6.moarvm:MAIN:18)
 from src/gen/m-main.nqp:35  (/home/jonathan/.rakudobrew/moar-nom/install/share/perl6/runtime/perl6.moarvm:<mainline>:197)
 from <unknown>:1  (/home/jonathan/.rakudobrew/moar-nom/install/share/perl6/runtime/perl6.moarvm:<main>:8)
 from <unknown>:1  (/home/jonathan/.rakudobrew/moar-nom/install/share/perl6/runtime/perl6.moarvm:<entry>:9)