Smoke [5.11.0] 33567 FAIL(Ft) MSWin32 WinXP/.Net SP2 (x86/2 cpu)

Automated smoke report for 5.11.0 patch 33567
maldoror.bath.planit.group: Intel(R) Core(TM)2 CPU 6700 @ 2.66GHz(~2660 MHz) (x86/2 cpu)
    on        MSWin32 - WinXP/.Net SP2
    using     cl version 12.00.8804
    smoketime 4 hours 1 minute (average 12 minutes 5 seconds)

Summary: FAIL(Ft)

O = OK  F = Failure(s), extended report at the bottom
X = Failure(s) under TEST but not under harness
? = still running or test results not (yet) available
Build failures during:       - = unknown or N/A
c = Configure, m = make, M = make (after miniperl), t = make test-prep

   33567     Configuration (common) -DINST_TOP=$(INST_DRV)\Smoke\doesntexist
----------- ---------------------------------------------------------
O O         
O O         -Dusemymalloc
O O         -Duseithreads -Uuseimpsys
O O         -Duseithreads -Uuseimpsys -Dusemymalloc
O O         -Duseithreads
F t         -Accflags='-DPERL_OLD_COPY_ON_WRITE'
F t         -Accflags='-DPERL_OLD_COPY_ON_WRITE' -Dusemymalloc
F t         -Accflags='-DPERL_OLD_COPY_ON_WRITE' -Duseithreads -Uuseimpsys
F t -Accflags='-DPERL_OLD_COPY_ON_WRITE' -Duseithreads -Uuseimpsys -Dusemymalloc
F t         -Accflags='-DPERL_OLD_COPY_ON_WRITE' -Duseithreads
| +--------- -DDEBUGGING
+----------- no debugging


Locally applied patches:
    DEVEL
    SMOKE33567

Failures: (common-args) -DINST_TOP=$(INST_DRV)\Smoke\doesntexist
[default] -Accflags='-DPERL_OLD_COPY_ON_WRITE'
[default] -Accflags='-DPERL_OLD_COPY_ON_WRITE' -Dusemymalloc
[default] -Accflags='-DPERL_OLD_COPY_ON_WRITE' -Duseithreads -Uuseimpsys
../ext/Compress/Raw/Zlib/t/07bufsize.t......................FAILED
    Bad plan.  You planned 288 tests but ran 41.

[default] -Accflags='-DPERL_OLD_COPY_ON_WRITE' -Duseithreads -Uuseimpsys -Dusemymalloc
[default] -Accflags='-DPERL_OLD_COPY_ON_WRITE' -Duseithreads
../ext/Compress/Raw/Zlib/t/07bufsize.t......................FAILED
    Bad plan.  You planned 288 tests but ran 41.
../ext/threads/shared/t/stress.t............................FAILED