diff -r 28d3bcb1bad6 Lib/test/libregrtest/main.py
--- a/Lib/test/libregrtest/main.py	Tue Sep 29 13:41:46 2015 +0200
+++ b/Lib/test/libregrtest/main.py	Tue Sep 29 13:47:07 2015 +0200
@@ -246,9 +246,7 @@ def main(tests=None, **kwargs):
         random.shuffle(selected)
     if ns.trace:
         import trace, tempfile
-        tracer = trace.Trace(ignoredirs=[sys.base_prefix, sys.base_exec_prefix,
-                                         tempfile.gettempdir()],
-                             trace=False, count=True)
+        tracer = trace.Trace(trace=False, count=True)
 
     test_times = []
     support.verbose = ns.verbose      # Tell tests to be moderately quiet
diff -r 28d3bcb1bad6 Lib/test/test_regrtest.py
--- a/Lib/test/test_regrtest.py	Tue Sep 29 13:41:46 2015 +0200
+++ b/Lib/test/test_regrtest.py	Tue Sep 29 13:47:07 2015 +0200
@@ -549,8 +549,6 @@ class ArgsTestCase(BaseTestCase):
                  % (self.TESTNAME_REGEX, len(tests)))
         self.check_line(output, regex)
 
-    @unittest.skipIf(sys.platform == 'win32',
-                     "FIXME: coverage doesn't work on Windows")
     def test_coverage(self):
         # test --coverage
         test = self.create_test()