All the dependencies of this issue are tagged with Components:Cross-Build and a title starting with 'android'.

Tests that fail on an android emulator running an x86 system image at API level 21:

  issue #26918: android: test_pipes fails
  issue #26919: android: test_cmd_line fails
  issue #26920: android: test_sys fails
  issue #26924: android: test_concurrent_futures fails
  issue #26925: android: test_multiprocessing_main_handling fails
  issue #26926: android: test_io fails
  issue #26927: android: test_mmap fails
  issue #26928: android: test_site fails
  issue #26929: android: test_strptime fails
  issue #26931: android: test_distutils fails
  issue #26932: android: test_posix fails
  issue #26933: android: test_posixpath fails
  issue #26934: android: test_faulthandler fails
  issue #26935: android: test_os fails
  issue #26936: android: test_socket fails
  issue #26937: android: test_tarfile fails

Tests that fail on an android emulator running an armv7 system image (but not fail on x86) at API level 21:

  issue #26938: android: test_concurrent_futures hangs on armv7
  issue #26939: android: test_functools hangs on armv7
  issue #26940: android: test_importlib hangs on armv7
  issue #26941: android: test_threading hangs on armv7
  issue #26942: android: test_ctypes crashes on armv7