[issue19734] test_venv.test_with_pip() fails on "AMD64 Ubuntu LTS 3.x" buildbot

[STINNER Victor]

New submission from STINNER Victor:

http://buildbot.python.org/all/builders/AMD64%20Ubuntu%20LTS%203.x/builds/3178/steps/test/logs/stdio

Re-running failed tests in verbose mode
Re-running test 'test_venv' in verbose mode
test_defaults (test.test_venv.BasicTest) ... ok
test_executable (test.test_venv.BasicTest) ... ok
test_executable_symlinks (test.test_venv.BasicTest) ... ok
test_isolation (test.test_venv.BasicTest) ... ok
test_overwrite_existing (test.test_venv.BasicTest) ... ok
test_prefixes (test.test_venv.BasicTest) ... ok
test_symlinking (test.test_venv.BasicTest) ... ok
test_unoverwritable_fails (test.test_venv.BasicTest) ... ok
test_upgrade (test.test_venv.BasicTest) ... ok
test_explicit_no_pip (test.test_venv.EnsurePipTest) ... ok
test_no_pip_by_default (test.test_venv.EnsurePipTest) ... ok
test_with_pip (test.test_venv.EnsurePipTest) ... test test_venv failed
ERROR

======================================================================
ERROR: test_with_pip (test.test_venv.EnsurePipTest)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "/opt/python/3.x.langa-ubuntu/build/Lib/test/test_venv.py", line 288, in test_with_pip
    self.run_with_capture(venv.create, self.env_dir, with_pip=True)
  File "/opt/python/3.x.langa-ubuntu/build/Lib/test/test_venv.py", line 48, in run_with_capture
    func(*args, **kwargs)
  File "/opt/python/3.x.langa-ubuntu/build/Lib/venv/__init__.py", line 359, in create
    builder.create(env_dir)
  File "/opt/python/3.x.langa-ubuntu/build/Lib/venv/__init__.py", line 86, in create
    self._setup_pip(context)
  File "/opt/python/3.x.langa-ubuntu/build/Lib/venv/__init__.py", line 242, in _setup_pip
    subprocess.check_output(cmd)
  File "/opt/python/3.x.langa-ubuntu/build/Lib/subprocess.py", line 618, in check_output
    raise CalledProcessError(retcode, process.args, output=output)
subprocess.CalledProcessError: Command '['/tmp/tmp4_ukigy9/bin/python', '-Im', 'ensurepip', '--upgrade', '--default-pip']' returned non-zero exit status 3

----------
components: Tests
keywords: buildbot
messages: 204013
nosy: haypo, loewis, nick
priority: normal
severity: normal
status: open
title: test_venv.test_with_pip() fails on "AMD64 Ubuntu LTS 3.x" buildbot
versions: Python 3.4

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue19734>
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