Index: setuptools_scm-3.3.3/testing/test_regressions.py
===================================================================
--- setuptools_scm-3.3.3.orig/testing/test_regressions.py
+++ setuptools_scm-3.3.3/testing/test_regressions.py
@@ -49,6 +49,7 @@ def test_pip_egg_info(tmpdir, monkeypatc
     assert get_version(root=p.strpath, fallback_root=p.strpath) == "1.0"
 
 
+@pytest.mark.xfail(reason="github connection")
 @pytest.mark.issue(164)
 def test_pip_download(tmpdir, monkeypatch):
     monkeypatch.chdir(tmpdir)
Index: setuptools_scm-3.3.3/testing/test_setuptools_support.py
===================================================================
--- setuptools_scm-3.3.3.orig/testing/test_setuptools_support.py
+++ setuptools_scm-3.3.3/testing/test_setuptools_support.py
@@ -65,12 +65,14 @@ def check(packagedir, expected_version,
     )
 
 
+@pytest.mark.xfail(reason="github connection")
 def test_old_setuptools_fails(get_setuptools_packagedir):
     packagedir = get_setuptools_packagedir("0.9.8")
     with pytest.raises(subprocess.CalledProcessError):
         check(packagedir, "0.9.8")
 
 
+@pytest.mark.xfail(reason="github connection")
 def test_old_setuptools_allows_with_warnings(get_setuptools_packagedir):
 
     packagedir = get_setuptools_packagedir("0.9.8")
@@ -78,6 +80,7 @@ def test_old_setuptools_allows_with_warn
     check(packagedir, "0.9.8", PYTHONWARNINGS="once::Warning")
 
 
+@pytest.mark.xfail(reason="github connection")
 def test_distlib_setuptools_works(get_setuptools_packagedir):
     packagedir = get_setuptools_packagedir("12.0.1")
     check(packagedir, "12.0.1")