Declare Rules-Requires-Root: no.

debian/changelog

@@ -3,6 +3,7 @@ calamares (3.2.24-0ubuntu1) UNRELEASED; urgency=medium
   * New upstream release.
   * Update copyright file.
   * Update debhelper-compat (=13), no changes needed.
+  * Declare Rules-Requires-Root: no
 
  -- Dan Simmons <kc2bez@lubuntu.me>  Sun, 24 May 2020 12:52:49 -0400
 

debian/control

@@ -39,6 +39,7 @@ Build-Depends: cmake,
                qttools5-dev,
                qttools5-dev-tools
 Standards-Version: 4.5.0
+Rules-Requires-Root: no
 Homepage: https://github.com/calamares/calamares
 Vcs-Browser: https://phab.lubuntu.me/source/calamares/
 Vcs-Git: https://phab.lubuntu.me/source/calamares.git