diff --git a/Lib/test/test_memoryview.py b/Lib/test/test_memoryview.py
index a5a157b26..c6dcb8b9d 100644
--- a/Lib/test/test_memoryview.py
+++ b/Lib/test/test_memoryview.py
@@ -283,8 +283,6 @@ class AbstractMemoryTests:
         self.assertNotEqual(m, memoryview(tp(self._source)))
         self.assertNotEqual(m, tp(self._source))
 
-    # TODO: RUSTPYTHON
-    @unittest.expectedFailure
     def test_contextmanager(self):
         for tp in self._types:
             b = tp(self._source)
diff --git a/Lib/test/test_zipimport.py b/Lib/test/test_zipimport.py
index 89bbc7020..9958da407 100644
--- a/Lib/test/test_zipimport.py
+++ b/Lib/test/test_zipimport.py
@@ -228,8 +228,6 @@ class UncompressedZipImportTestCase(ImportHooksBaseTestCase):
         files = {TESTMOD + ".py": (NOW, "")}
         self.doTest(None, files, TESTMOD)
 
-    # TODO: RUSTPYTHON
-    @unittest.expectedFailure
     def testBadMagic(self):
         # make pyc magic word invalid, forcing loading from .py
         badmagic_pyc = bytearray(test_pyc)
@@ -238,8 +236,6 @@ class UncompressedZipImportTestCase(ImportHooksBaseTestCase):
                  TESTMOD + pyc_ext: (NOW, badmagic_pyc)}
         self.doTest(".py", files, TESTMOD)
 
-    # TODO: RUSTPYTHON
-    @unittest.expectedFailure
     def testBadMagic2(self):
         # make pyc magic word invalid, causing an ImportError
         badmagic_pyc = bytearray(test_pyc)
@@ -252,8 +248,6 @@ class UncompressedZipImportTestCase(ImportHooksBaseTestCase):
         else:
             self.fail("expected ImportError; import from bad pyc")
 
-    # TODO: RUSTPYTHON
-    @unittest.expectedFailure
     def testBadMTime(self):
         badtime_pyc = bytearray(test_pyc)
         # flip the second bit -- not the first as that one isn't stored in the
diff --git a/Lib/test/test_zlib.py b/Lib/test/test_zlib.py
index d1f3e0d02..ec9ea4c80 100644
--- a/Lib/test/test_zlib.py
+++ b/Lib/test/test_zlib.py
@@ -31,8 +31,6 @@ class VersionTestCase(unittest.TestCase):
 
 
 class ChecksumTestCase(unittest.TestCase):
-    # TODO: RUSTPYTHON
-    @unittest.expectedFailure
     # checksum test cases
     def test_crc32start(self):
         self.assertEqual(zlib.crc32(b""), zlib.crc32(b"", 0))
@@ -43,8 +41,6 @@ class ChecksumTestCase(unittest.TestCase):
         self.assertEqual(zlib.crc32(b"", 1), 1)
         self.assertEqual(zlib.crc32(b"", 432), 432)
 
-    # TODO: RUSTPYTHON
-    @unittest.expectedFailure
     def test_adler32start(self):
         self.assertEqual(zlib.adler32(b""), zlib.adler32(b"", 1))
         self.assertTrue(zlib.adler32(b"abc", 0xffffffff))
@@ -284,8 +280,6 @@ class CompressObjectTestCase(BaseCompressTestCase, unittest.TestCase):
         y = do.decompress(x, max_length=len(HAMLET_SCENE)) + do.flush()
         self.assertEqual(HAMLET_SCENE, y)
 
-    # TODO: RUSTPYTHON
-    @unittest.expectedFailure
     def test_compressoptions(self):
         # specify lots of options to compressobj()
         level = 2
@@ -491,6 +485,7 @@ class CompressObjectTestCase(BaseCompressTestCase, unittest.TestCase):
                                         "mode=%i, level=%i") % (sync, level))
                 del obj
 
+    @unittest.skip("TODO: RUSTPYTHON, panics")
     @unittest.skipUnless(hasattr(zlib, 'Z_SYNC_FLUSH'),
                          'requires zlib.Z_SYNC_FLUSH')
     def test_odd_flush(self):