Package: usermetricsservice Version: 1.3.3-1 Severity: serious Your package has a preinst maintainer script, calling adduser. At the same time, your package Depends: adduser, but does not Pre-Depends: adduser. Installing your package fails when adduser is not yet configured.
Reproducer: $ mmdebstrap --variant=essential --include=usermetricsservice unstable /dev/null ... Selecting previously unselected package usermetricsservice. Preparing to unpack .../44-usermetricsservice_1.3.3-1_arm64.deb ... warn: `/etc/adduser.conf' does not exist. Using defaults. Insecure $ENV{PATH} while running with -T switch at /usr/share/perl5/Debian/AdduserLogging.pm line 161. dpkg: error processing archive /tmp/apt-dpkg-install-1SJi4A/44-usermetricsservice_1.3.3-1_arm64.deb (--unpack): new usermetricsservice package pre-installation script subprocess returned error exit status 25 Errors were encountered while processing: /tmp/apt-dpkg-install-1SJi4A/44-usermetricsservice_1.3.3-1_arm64.deb E: Sub-process env returned an error code (1) You may consider replacing adduser with a sysusers fragment, see https://manpages.debian.org/unstable/debhelper/dh_installsysusers.1.en.html Otherwise, please Pre-Depend on adduser. Best, Chris