[Bug 1781446] Re: Autopkgtest upgrade-all-security is failing due to apt printing to stderr in Bionic

[Steve Langasek]

Hello Balint, or anyone else affected,

Accepted unattended-upgrades into bionic-proposed. The package will
build now and be available at https://launchpad.net/ubuntu/+source
/unattended-upgrades/1.1ubuntu1.18.04.3 in a few hours, and then in the
-proposed repository.

Please help us by testing this new package.  See
https://wiki.ubuntu.com/Testing/EnableProposed for documentation on how
to enable and use -proposed.Your feedback will aid us getting this
update out to other Ubuntu users.

If this package fixes the bug for you, please add a comment to this bug,
mentioning the version of the package you tested and change the tag from
verification-needed-bionic to verification-done-bionic. If it does not
fix the bug for you, please add a comment stating that, and change the
tag to verification-failed-bionic. In either case, without details of
your testing we will not be able to proceed.

Further information regarding the verification process can be found at
https://wiki.ubuntu.com/QATeam/PerformingSRUVerification .  Thank you in
advance!

** Changed in: unattended-upgrades (Ubuntu Bionic)
       Status: New => Fix Committed

** Tags added: verification-needed verification-needed-bionic

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https://bugs.launchpad.net/bugs/1781446

Title:
  Autopkgtest upgrade-all-security is failing due to apt printing to
  stderr in Bionic

Status in unattended-upgrades package in Ubuntu:
  In Progress
Status in unattended-upgrades source package in Bionic:
  Fix Committed

Bug description:
  [Impact] 
   * The following error can be seen in autopkgtest, holding back u-u from migration:
  https://objectstorage.prodstack4-5.canonical.com/v1/AUTH_77e2ada1e7a84929a74ba3b87153c0ac/autopkgtest-bionic/bionic/amd64/u/unattended-upgrades/20180712_151033_c44d8@/log.gz :
  ...
  Processing triggers for libgdk-pixbuf2.0-0:amd64 (2.36.11-2) ...
  W: APT had planned for dpkg to do more than it reported back (2370 vs 2372).
     Affected packages: fuse:amd64
  Reading package lists...
  ...
  autopkgtest [14:17:33]: test upgrade-all-security:  - - - - - - - - - - results - - - - - - - - - -
  upgrade-all-security FAIL stderr: W: APT had planned for dpkg to do more than it reported back (2370 vs 2372).
  autopkgtest [14:17:34]: test upgrade-all-security:  - - - - - - - - - - stderr - - - - - - - - - -
  W: APT had planned for dpkg to do more than it reported back (2370 vs 2372).
     Affected packages: fuse:amd64
  autopkgtest [14:17:34]: test upgrade-between-snapshots: preparing testbed
  ...

  [Test Case]

   * upgrade-all-security autopkgtest

  [Regression Potential]

   * Valid errors manifesting themselves only as output from stderr may
  not fail the autopkgtest.

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