[Bug 1266811] Re: --unbuilt-tree fails with adt-virt-lxc if the tree has 700 permissions

[Launchpad Bug Tracker]

** Branch linked: lp:debian/autopkgtest

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https://bugs.launchpad.net/bugs/1266811

Title:
  --unbuilt-tree fails with adt-virt-lxc if the tree has 700 permissions

Status in “autopkgtest” package in Ubuntu:
  Fix Committed

Bug description:
  Steps to reproduce:

  sudo apt-get install autopkgtest lxc ubuntu-dev-tools
  sudo lxc-create -t ubuntu-cloud -n trusty -- -r trusty -s daily
  sudo chmod 755 /var/lib/lxc  # workaround for bug 1266809
  pull-lp-source apache2 2.4.6-2ubuntu4
  chmod 700 2.4.6-2ubuntu4
  adt-run --gain-root=sudo --unbuilt-tree apache2-2.4.6 --- adt-virt-lxc --ephemeral trusty

  Expected results: successful test.
  Actual results: cp: cannot open ‘/tmp/adt-downtmp/ubtree0-ubtree/./debian/changelog’ for reading: Permission denied
  Debug output here: http://paste.ubuntu.com/6709295/

  It looks like the unbuilt tree is owned by root, and the user ubuntu
  cannot read it. I think this is a regression.

  Present in: autopkgtest 2.5.5

  Workaround: build a source package from the unbuilt tree manually, and
  then give adt-run a .dsc instead.

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