Azure linux buildbot failure

[tirkarthi]

BPO	34734
Nosy	@vstinner, @pablogsal, @tirkarthi

^{Note: these values reflect the state of the issue at the time it was migrated and might not reflect the current state.}

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GitHub fields:

assignee = None
closed_at = <Date 2018-09-23.21:00:30.514>
created_at = <Date 2018-09-19.09:51:51.732>
labels = ['build', '3.8']
title = 'Azure linux buildbot failure'
updated_at = <Date 2018-09-23.21:00:30.513>
user = 'https://github.com/tirkarthi'

bugs.python.org fields:

activity = <Date 2018-09-23.21:00:30.513>
actor = 'xtreak'
assignee = 'none'
closed = True
closed_date = <Date 2018-09-23.21:00:30.514>
closer = 'xtreak'
components = ['Build']
creation = <Date 2018-09-19.09:51:51.732>
creator = 'xtreak'
dependencies = []
files = []
hgrepos = []
issue_num = 34734
keywords = []
message_count = 3.0
messages = ['325739', '325762', '326183']
nosy_count = 3.0
nosy_names = ['vstinner', 'pablogsal', 'xtreak']
pr_nums = []
priority = 'normal'
resolution = 'third party'
stage = 'resolved'
status = 'closed'
superseder = None
type = None
url = 'https://bugs.python.org/issue34734'
versions = ['Python 3.8']

[tirkarthi]

It seems there is a sporadic failure in Azure linux buildbots while installing dependencies with the following error. It also fails sporadically on separate PRs that trigger the build. I noticed it for the few days since README Azure badge had the error for a couple of days with Linux builds passing on Travis.

Error message :

2018-09-19T09:08:43.7414966Z Hit:17 http://packages.erlang-solutions.com/debian xenial Release
2018-09-19T09:08:45.1584376Z Reading package lists...
2018-09-19T09:08:45.2045716Z E: Could not get lock /var/lib/dpkg/lock - open (11: Resource temporarily unavailable)
2018-09-19T09:08:45.2063210Z E: Unable to lock the administration directory (/var/lib/dpkg/), is another process using it?
2018-09-19T09:08:45.2200826Z ##[error]Bash exited with code '100'.
2018-09-19T09:08:45.2734828Z ##[section]Finishing: Install dependencies

Reference buildbot failure : https://dev.azure.com/python/cpython/_build/results?buildId=30061&view=logs

Adding Victor and Pablo for notification. I don't think this is a requirement but just something I noticed and it also blocks miss-islington from auto-merging backport PRs in some cases like #9401 (comment)

Thanks

[vstinner]

Remove myself. VSTS is not my duty :-)

[tirkarthi]

Seems this is a known problem with VSTS and I am closing this as third party. Reference : https://mail.python.org/pipermail/python-committers/2018-September/006084.html