NativeCall build fail on Mac OS X

gistfile1.txt

[cjfields@cjfields-imac panda (master)]$ perl6 -v
This is perl6 version 2014.11-65-gdfcf9fc built on MoarVM version 2014.11-64-g650333f
[cjfields@cjfields-imac panda (master)]$ panda install NativeCall
==> Fetching NativeCall
==> Building NativeCall
Compiling lib/NativeCall.pm6 to mbc
==> Testing NativeCall
t/01-argless.t ......... ok
t/02-simple-args.t ..... ok
t/03-simple-returns.t .. ok
t/04-pointers.c:17:13: warning: implicitly declaring library function 'strcmp' with type 'int (const char *, const char *)'
    int x = strcmp("Got passed back the pointer I returned", ptr) == 0;
            ^
t/04-pointers.c:17:13: note: please include the header <string.h> or explicitly provide a declaration for 'strcmp'
1 warning generated.
t/04-pointers.t ........ ok
t/05-arrays.t .......... ok
t/06-struct.t .......... ok
t/07-writebarrier.t .... ok
moar(87148,0x7fff7cf15310) malloc: *** error for object 0x10adfcde0: pointer being freed was not allocated
*** set a breakpoint in malloc_error_break to debug
t/08-callbacks.t .......
Failed 3/5 subtests
t/09-nativecast.t ...... ok
t/10-cglobals.t ........ ok
Test Summary Report
-------------------
t/08-callbacks.t     (Wstat: 6 Tests: 2 Failed: 0)
  Non-zero wait status: 6
  Parse errors: Bad plan.  You planned 5 tests but ran 2.
Files=10, Tests=95,  6 wallclock secs ( 0.04 usr  0.01 sys +  5.05 cusr  0.74 csys =  5.84 CPU)
Result: FAIL
test stage failed for NativeCall: Tests failed
  in method install at lib/Panda.pm:124
  in method resolve at lib/Panda.pm:193
  in sub MAIN at /Users/cjfields/src/rakudo/install/languages/perl6/site/bin/panda:20
  in sub MAIN at /Users/cjfields/src/rakudo/install/languages/perl6/site/bin/panda:18
  in block <unit> at /Users/cjfields/src/rakudo/install/languages/perl6/site/bin/panda:69


Failure Summary
----------------
NativeCall
	*test stage failed for NativeCall: Tests failed