test_distutils failed on AMD64 Windows10 3.x buildbot:

http://buildbot.python.org/all/#/builders/3/builds/128

0:19:07 [165/407/1] test_distutils failed -- running: test_multiprocessing_spawn (377 sec)
xxmodule.c
xxmodule.obj : warning LNK4197: export 'PyInit_xx' specified multiple times; using first specification
   Creating library d:\temp\tmp4zg7rpix\Debug\temp\tmp4zg7rpix\xx_d.cp37-win_amd64.lib and object d:\temp\tmp4zg7rpix\Debug\temp\tmp4zg7rpix\xx_d.cp37-win_amd64.exp
LINK : /LTCG specified but no code generation required; remove /LTCG from the link command line to improve linker performance
LINK : fatal error LNK1158: cannot run 'rc.exe'
foo.c
   Creating library d:\temp\tmpy79shh6o\tempt\temp\tmpl63x182t\foo_d.cp37-win_amd64.lib and object d:\temp\tmpy79shh6o\tempt\temp\tmpl63x182t\foo_d.cp37-win_amd64.exp
LINK : /LTCG specified but no code generation required; remove /LTCG from the link command line to improve linker performance
LINK : fatal error LNK1158: cannot run 'rc.exe'
xxmodule.c
xxmodule.obj : warning LNK4197: export 'PyInit_xx' specified multiple times; using first specification
   Creating library d:\temp\tmpkb4gpfw9\Debug\temp\tmpkb4gpfw9\xx_d.cp37-win_amd64.lib and object d:\temp\tmpkb4gpfw9\Debug\temp\tmpkb4gpfw9\xx_d.cp37-win_amd64.exp
LINK : /LTCG specified but no code generation required; remove /LTCG from the link command line to improve linker performance
LINK : fatal error LNK1158: cannot run 'rc.exe'
foo.c
   Creating library d:\temp\tmppmjpg5zh\tempt\temp\tmpi1x5uxdd\foo_d.cp37-win_amd64.lib and object d:\temp\tmppmjpg5zh\tempt\temp\tmpi1x5uxdd\foo_d.cp37-win_amd64.exp
LINK : /LTCG specified but no code generation required; remove /LTCG from the link command line to improve linker performance
LINK : fatal error LNK1158: cannot run 'rc.exe'
xxmodule.c
xxmodule.obj : warning LNK4197: export 'PyInit_xx' specified multiple times; using first specification
   Creating library build\temp.win-amd64-3.7-pydebug\Debug\xx_d.cp37-win_amd64.lib and object build\temp.win-amd64-3.7-pydebug\Debug\xx_d.cp37-win_amd64.exp
LINK : /LTCG specified but no code generation required; remove /LTCG from the link command line to improve linker performance
LINK : fatal error LNK1158: cannot run 'rc.exe'

D:\buildarea\3.x.bolen-windows10\build\build\test_python_2228>exit 1 

D:\buildarea\3.x.bolen-windows10\build\build\test_python_2228>exit 0

(...)


======================================================================
ERROR: test_build_ext (distutils.tests.test_build_ext.BuildExtTestCase)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "D:\buildarea\3.x.bolen-windows10\build\lib\distutils\_msvccompiler.py", line 519, in link
    self.spawn([self.linker] + ld_args)
  File "D:\buildarea\3.x.bolen-windows10\build\lib\distutils\_msvccompiler.py", line 542, in spawn
    return super().spawn(cmd)
  File "D:\buildarea\3.x.bolen-windows10\build\lib\distutils\ccompiler.py", line 909, in spawn
    spawn(cmd, dry_run=self.dry_run)
  File "D:\buildarea\3.x.bolen-windows10\build\lib\distutils\spawn.py", line 38, in spawn
    _spawn_nt(cmd, search_path, dry_run=dry_run)
  File "D:\buildarea\3.x.bolen-windows10\build\lib\distutils\spawn.py", line 81, in _spawn_nt
    "command %r failed with exit status %d" % (cmd, rc))
distutils.errors.DistutilsExecError: command 'C:\\Program Files (x86)\\Microsoft Visual Studio 14.0\\VC\\BIN\\x86_amd64\\link.exe' failed with exit status 1158

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "D:\buildarea\3.x.bolen-windows10\build\lib\distutils\tests\test_build_ext.py", line 82, in test_build_ext
    cmd.run()
  File "D:\buildarea\3.x.bolen-windows10\build\lib\distutils\command\build_ext.py", line 339, in run
    self.build_extensions()
  File "D:\buildarea\3.x.bolen-windows10\build\lib\distutils\command\build_ext.py", line 448, in build_extensions
    self._build_extensions_serial()
  File "D:\buildarea\3.x.bolen-windows10\build\lib\distutils\command\build_ext.py", line 473, in _build_extensions_serial
    self.build_extension(ext)
  File "D:\buildarea\3.x.bolen-windows10\build\lib\distutils\command\build_ext.py", line 558, in build_extension
    target_lang=language)
  File "D:\buildarea\3.x.bolen-windows10\build\lib\distutils\ccompiler.py", line 717, in link_shared_object
    extra_preargs, extra_postargs, build_temp, target_lang)
  File "D:\buildarea\3.x.bolen-windows10\build\lib\distutils\_msvccompiler.py", line 522, in link
    raise LinkError(msg)
distutils.errors.LinkError: command 'C:\\Program Files (x86)\\Microsoft Visual Studio 14.0\\VC\\BIN\\x86_amd64\\link.exe' failed with exit status 1158