Verified on Disco, Cosmic, Bionic and Xenial, the error is not seen on any of the releases: https://errors.ubuntu.com/?release=Ubuntu%2019.04&package=unattended-upgrades&period=week&version=1.10ubuntu5.1 https://errors.ubuntu.com/?release=Ubuntu%2018.10&package=unattended-upgrades&period=week&version=1.5ubuntu3.18.10.4 https://errors.ubuntu.com/?release=Ubuntu%2018.04&package=unattended-upgrades&period=week&version=1.1ubuntu1.18.04.11 https://errors.ubuntu.com/?release=Ubuntu%2016.04&package=unattended-upgrades&period=week&version=1.1ubuntu1.18.04.7~16.04.3 Also the build-time test passes: https://launchpadlibrarian.net/421498943/buildlog_ubuntu-disco-amd64.unattended-upgrades_1.10ubuntu5.1_BUILDING.txt.gz ... Running ./test_rewind.py with python3 DEBUG:root:APT::VersionedKernelPackages is not set DEBUG:root:adjusting candidate version: test-package=2.0 DEBUG:root:adjusting candidate version: test2-package=2.0 DEBUG:root:falling back to adjusting test2-package's dependencies recursively DEBUG:root:adjusting candidate version: test-package=2.0 DEBUG:root:adjusting candidate version: test2-package=2.0 DEBUG:root:adjusting candidate version: test2-package-dependency=2.0 DEBUG:root:adjusting candidate version: test3-package=2.0 DEBUG:root:falling back to adjusting test3-package's dependencies recursively DEBUG:root:adjusting candidate version: test-package=2.0 DEBUG:root:adjusting candidate version: test3-package=2.0 DEBUG:root:adjusting candidate version: test2-package=2.0 DEBUG:root:adjusting candidate version: test3-old-package-dependency=2.0 DEBUG:root:adjusting candidate version: test2-package-dependency=2.0 DEBUG:root:pkg forbidden-dependency not in allowed origin DEBUG:root:sanity check failed for: {'test3-package=2.0', 'forbidden-dependency=2.0', 'z-package=1.0', 'test3-old-package-dependency=2.0'} DEBUG:root:adjusting candidate version: test-package=2.0 DEBUG:root:adjusting candidate version: test3-package=2.0 DEBUG:root:adjusting candidate version: test2-package=2.0 DEBUG:root:falling back to adjusting test-package's dependencies recursively DEBUG:root:adjusting candidate version: test-package=2.0 DEBUG:root:adjusting candidate version: test3-package=2.0 DEBUG:root:adjusting candidate version: test2-package=2.0 DEBUG:root:adjusting candidate version: test3-old-package-dependency=2.0 DEBUG:root:adjusting candidate version: test2-package-dependency=2.0 DEBUG:root:falling back to adjusting test2-package's dependencies recursively DEBUG:root:adjusting candidate version: test-package=2.0 DEBUG:root:adjusting candidate version: test3-package=2.0 DEBUG:root:adjusting candidate version: test2-package=2.0 DEBUG:root:adjusting candidate version: test3-old-package-dependency=2.0 DEBUG:root:adjusting candidate version: test2-package-dependency=2.0 DEBUG:root:falling back to adjusting test3-package's dependencies recursively DEBUG:root:adjusting candidate version: test-package=2.0 DEBUG:root:adjusting candidate version: test3-package=2.0 DEBUG:root:adjusting candidate version: test2-package=2.0 DEBUG:root:adjusting candidate version: test3-old-package-dependency=2.0 DEBUG:root:adjusting candidate version: test2-package-dependency=2.0 DEBUG:root:adjusting candidate version: test-package=2.0 DEBUG:root:adjusting candidate version: test3-package=2.0 DEBUG:root:adjusting candidate version: test2-package=2.0 DEBUG:root:falling back to adjusting test-package's dependencies recursively DEBUG:root:adjusting candidate version: test-package=2.0 DEBUG:root:adjusting candidate version: test3-package=2.0 DEBUG:root:adjusting candidate version: test2-package=2.0 DEBUG:root:adjusting candidate version: test3-old-package-dependency=2.0 DEBUG:root:adjusting candidate version: test2-package-dependency=2.0 DEBUG:root:falling back to adjusting test2-package's dependencies recursively DEBUG:root:adjusting candidate version: test-package=2.0 DEBUG:root:adjusting candidate version: test3-package=2.0 DEBUG:root:adjusting candidate version: test2-package=2.0 DEBUG:root:adjusting candidate version: test3-old-package-dependency=2.0 DEBUG:root:adjusting candidate version: test2-package-dependency=2.0 DEBUG:root:falling back to adjusting test3-package's dependencies recursively DEBUG:root:adjusting candidate version: test-package=2.0 DEBUG:root:adjusting candidate version: test3-package=2.0 DEBUG:root:adjusting candidate version: test2-package=2.0 DEBUG:root:adjusting candidate version: test3-old-package-dependency=2.0 DEBUG:root:adjusting candidate version: test2-package-dependency=2.0 . ---------------------------------------------------------------------- Ran 1 test in 0.069s OK ... https://launchpadlibrarian.net/421607659/buildlog_ubuntu-cosmic-amd64.unattended-upgrades_1.5ubuntu3.18.10.4_BUILDING.txt.gz ... Running ./test_rewind.py with python3 DEBUG:root:APT::VersionedKernelPackages is not set DEBUG:root:adjusting candidate version: test-package=2.0 DEBUG:root:adjusting candidate version: test2-package=2.0 DEBUG:root:falling back to adjusting test2-package's dependencies recursively DEBUG:root:adjusting candidate version: test-package=2.0 DEBUG:root:adjusting candidate version: test2-package=2.0 DEBUG:root:adjusting candidate version: test2-package-dependency=2.0 DEBUG:root:adjusting candidate version: test3-package=2.0 DEBUG:root:falling back to adjusting test3-package's dependencies recursively DEBUG:root:adjusting candidate version: test-package=2.0 DEBUG:root:adjusting candidate version: test3-package=2.0 DEBUG:root:adjusting candidate version: test2-package=2.0 DEBUG:root:adjusting candidate version: test3-old-package-dependency=2.0 DEBUG:root:adjusting candidate version: test2-package-dependency=2.0 DEBUG:root:pkg forbidden-dependency not in allowed origin DEBUG:root:sanity check failed for: {'forbidden-dependency=2.0', 'test3-old-package-dependency=2.0', 'z-package=1.0', 'test3-package=2.0'} DEBUG:root:adjusting candidate version: test-package=2.0 DEBUG:root:adjusting candidate version: test3-package=2.0 DEBUG:root:adjusting candidate version: test2-package=2.0 DEBUG:root:falling back to adjusting test-package's dependencies recursively DEBUG:root:adjusting candidate version: test-package=2.0 DEBUG:root:adjusting candidate version: test3-package=2.0 DEBUG:root:adjusting candidate version: test2-package=2.0 DEBUG:root:adjusting candidate version: test3-old-package-dependency=2.0 DEBUG:root:adjusting candidate version: test2-package-dependency=2.0 DEBUG:root:falling back to adjusting test2-package's dependencies recursively DEBUG:root:adjusting candidate version: test-package=2.0 DEBUG:root:adjusting candidate version: test3-package=2.0 DEBUG:root:adjusting candidate version: test2-package=2.0 DEBUG:root:adjusting candidate version: test3-old-package-dependency=2.0 DEBUG:root:adjusting candidate version: test2-package-dependency=2.0 DEBUG:root:falling back to adjusting test3-package's dependencies recursively DEBUG:root:adjusting candidate version: test-package=2.0 DEBUG:root:adjusting candidate version: test3-package=2.0 DEBUG:root:adjusting candidate version: test2-package=2.0 DEBUG:root:adjusting candidate version: test3-old-package-dependency=2.0 DEBUG:root:adjusting candidate version: test2-package-dependency=2.0 DEBUG:root:adjusting candidate version: test-package=2.0 DEBUG:root:adjusting candidate version: test3-package=2.0 DEBUG:root:adjusting candidate version: test2-package=2.0 DEBUG:root:falling back to adjusting test-package's dependencies recursively DEBUG:root:adjusting candidate version: test-package=2.0 DEBUG:root:adjusting candidate version: test3-package=2.0 DEBUG:root:adjusting candidate version: test2-package=2.0 DEBUG:root:adjusting candidate version: test3-old-package-dependency=2.0 DEBUG:root:adjusting candidate version: test2-package-dependency=2.0 DEBUG:root:falling back to adjusting test2-package's dependencies recursively DEBUG:root:adjusting candidate version: test-package=2.0 DEBUG:root:adjusting candidate version: test3-package=2.0 DEBUG:root:adjusting candidate version: test2-package=2.0 DEBUG:root:adjusting candidate version: test3-old-package-dependency=2.0 DEBUG:root:adjusting candidate version: test2-package-dependency=2.0 DEBUG:root:falling back to adjusting test3-package's dependencies recursively DEBUG:root:adjusting candidate version: test-package=2.0 DEBUG:root:adjusting candidate version: test3-package=2.0 DEBUG:root:adjusting candidate version: test2-package=2.0 DEBUG:root:adjusting candidate version: test3-old-package-dependency=2.0 DEBUG:root:adjusting candidate version: test2-package-dependency=2.0 . ---------------------------------------------------------------------- Ran 1 test in 0.047s OK ... https://launchpadlibrarian.net/421609952/buildlog_ubuntu-bionic-amd64.unattended-upgrades_1.1ubuntu1.18.04.11_BUILDING.txt.gz ... Running ./test_rewind.py with python3 DEBUG:root:APT::VersionedKernelPackages is not set DEBUG:root:adjusting candidate version: test-package=2.0 DEBUG:root:adjusting candidate version: test2-package=2.0 DEBUG:root:falling back to adjusting test2-package's dependencies recursively DEBUG:root:adjusting candidate version: test2-package=2.0 DEBUG:root:adjusting candidate version: test-package=2.0 DEBUG:root:adjusting candidate version: test2-package-dependency=2.0 DEBUG:root:adjusting candidate version: test3-package=2.0 DEBUG:root:falling back to adjusting test3-package's dependencies recursively DEBUG:root:adjusting candidate version: test2-package=2.0 DEBUG:root:adjusting candidate version: test3-package=2.0 DEBUG:root:adjusting candidate version: test-package=2.0 DEBUG:root:adjusting candidate version: test3-old-package-dependency=2.0 DEBUG:root:adjusting candidate version: test2-package-dependency=2.0 DEBUG:root:pkg forbidden-dependency not in allowed origin DEBUG:root:sanity check failed for: {'test3-package=2.0', 'z-package=1.0', 'test3-old-package-dependency=2.0', 'forbidden-dependency=2.0'} DEBUG:root:adjusting candidate version: test2-package=2.0 DEBUG:root:adjusting candidate version: test3-package=2.0 DEBUG:root:adjusting candidate version: test-package=2.0 DEBUG:root:falling back to adjusting test-package's dependencies recursively DEBUG:root:adjusting candidate version: test2-package=2.0 DEBUG:root:adjusting candidate version: test3-package=2.0 DEBUG:root:adjusting candidate version: test-package=2.0 DEBUG:root:adjusting candidate version: test3-old-package-dependency=2.0 DEBUG:root:adjusting candidate version: test2-package-dependency=2.0 DEBUG:root:falling back to adjusting test2-package's dependencies recursively DEBUG:root:adjusting candidate version: test2-package=2.0 DEBUG:root:adjusting candidate version: test3-package=2.0 DEBUG:root:adjusting candidate version: test-package=2.0 DEBUG:root:adjusting candidate version: test3-old-package-dependency=2.0 DEBUG:root:adjusting candidate version: test2-package-dependency=2.0 DEBUG:root:falling back to adjusting test3-package's dependencies recursively DEBUG:root:adjusting candidate version: test2-package=2.0 DEBUG:root:adjusting candidate version: test3-package=2.0 DEBUG:root:adjusting candidate version: test-package=2.0 DEBUG:root:adjusting candidate version: test3-old-package-dependency=2.0 DEBUG:root:adjusting candidate version: test2-package-dependency=2.0 DEBUG:root:adjusting candidate version: test2-package=2.0 DEBUG:root:adjusting candidate version: test3-package=2.0 DEBUG:root:adjusting candidate version: test-package=2.0 DEBUG:root:falling back to adjusting test-package's dependencies recursively DEBUG:root:adjusting candidate version: test2-package=2.0 DEBUG:root:adjusting candidate version: test3-package=2.0 DEBUG:root:adjusting candidate version: test-package=2.0 DEBUG:root:adjusting candidate version: test3-old-package-dependency=2.0 DEBUG:root:adjusting candidate version: test2-package-dependency=2.0 DEBUG:root:falling back to adjusting test2-package's dependencies recursively DEBUG:root:adjusting candidate version: test2-package=2.0 DEBUG:root:adjusting candidate version: test3-package=2.0 DEBUG:root:adjusting candidate version: test-package=2.0 DEBUG:root:adjusting candidate version: test3-old-package-dependency=2.0 DEBUG:root:adjusting candidate version: test2-package-dependency=2.0 DEBUG:root:falling back to adjusting test3-package's dependencies recursively DEBUG:root:adjusting candidate version: test2-package=2.0 DEBUG:root:adjusting candidate version: test3-package=2.0 DEBUG:root:adjusting candidate version: test-package=2.0 DEBUG:root:adjusting candidate version: test3-old-package-dependency=2.0 DEBUG:root:adjusting candidate version: test2-package-dependency=2.0 . ---------------------------------------------------------------------- Ran 1 test in 0.164s OK ... https://launchpadlibrarian.net/421614532/buildlog_ubuntu-xenial-amd64.unattended-upgrades_1.1ubuntu1.18.04.7~16.04.3_BUILDING.txt.gz ... Running ./test_rewind.py with python3 DEBUG:root:APT::VersionedKernelPackages is not set DEBUG:root:adjusting candidate version: test-package=2.0 DEBUG:root:adjusting candidate version: test2-package=2.0 DEBUG:root:falling back to adjusting test2-package's dependencies recursively DEBUG:root:adjusting candidate version: test-package=2.0 DEBUG:root:adjusting candidate version: test2-package=2.0 DEBUG:root:adjusting candidate version: test2-package-dependency=2.0 DEBUG:root:adjusting candidate version: test3-package=2.0 DEBUG:root:falling back to adjusting test3-package's dependencies recursively DEBUG:root:adjusting candidate version: test3-package=2.0 DEBUG:root:adjusting candidate version: test-package=2.0 DEBUG:root:adjusting candidate version: test2-package=2.0 DEBUG:root:adjusting candidate version: test2-package-dependency=2.0 DEBUG:root:adjusting candidate version: test3-old-package-dependency=2.0 DEBUG:root:pkg forbidden-dependency not in allowed origin DEBUG:root:sanity check failed for: {'z-package=1.0', 'test3-old-package-dependency=2.0', 'test3-package=2.0', 'forbidden-dependency=2.0'} DEBUG:root:adjusting candidate version: test3-package=2.0 DEBUG:root:adjusting candidate version: test-package=2.0 DEBUG:root:adjusting candidate version: test2-package=2.0 DEBUG:root:falling back to adjusting test-package's dependencies recursively DEBUG:root:adjusting candidate version: test3-package=2.0 DEBUG:root:adjusting candidate version: test-package=2.0 DEBUG:root:adjusting candidate version: test2-package=2.0 DEBUG:root:adjusting candidate version: test2-package-dependency=2.0 DEBUG:root:adjusting candidate version: test3-old-package-dependency=2.0 DEBUG:root:falling back to adjusting test2-package's dependencies recursively DEBUG:root:adjusting candidate version: test3-package=2.0 DEBUG:root:adjusting candidate version: test-package=2.0 DEBUG:root:adjusting candidate version: test2-package=2.0 DEBUG:root:adjusting candidate version: test2-package-dependency=2.0 DEBUG:root:adjusting candidate version: test3-old-package-dependency=2.0 DEBUG:root:falling back to adjusting test3-package's dependencies recursively DEBUG:root:adjusting candidate version: test3-package=2.0 DEBUG:root:adjusting candidate version: test-package=2.0 DEBUG:root:adjusting candidate version: test2-package=2.0 DEBUG:root:adjusting candidate version: test2-package-dependency=2.0 DEBUG:root:adjusting candidate version: test3-old-package-dependency=2.0 DEBUG:root:adjusting candidate version: test3-package=2.0 DEBUG:root:adjusting candidate version: test-package=2.0 DEBUG:root:adjusting candidate version: test2-package=2.0 DEBUG:root:falling back to adjusting test-package's dependencies recursively DEBUG:root:adjusting candidate version: test3-package=2.0 DEBUG:root:adjusting candidate version: test-package=2.0 DEBUG:root:adjusting candidate version: test2-package=2.0 DEBUG:root:adjusting candidate version: test2-package-dependency=2.0 DEBUG:root:adjusting candidate version: test3-old-package-dependency=2.0 DEBUG:root:falling back to adjusting test2-package's dependencies recursively DEBUG:root:adjusting candidate version: test3-package=2.0 DEBUG:root:adjusting candidate version: test-package=2.0 DEBUG:root:adjusting candidate version: test2-package=2.0 DEBUG:root:adjusting candidate version: test2-package-dependency=2.0 DEBUG:root:adjusting candidate version: test3-old-package-dependency=2.0 DEBUG:root:falling back to adjusting test3-package's dependencies recursively DEBUG:root:adjusting candidate version: test3-package=2.0 DEBUG:root:adjusting candidate version: test-package=2.0 DEBUG:root:adjusting candidate version: test2-package=2.0 DEBUG:root:adjusting candidate version: test2-package-dependency=2.0 DEBUG:root:adjusting candidate version: test3-old-package-dependency=2.0 . ---------------------------------------------------------------------- Ran 1 test in 0.069s OK ...