Diff of the two buildlogs:

--
--- b1/build.log	2025-04-02 02:59:13.667461526 +0000
+++ b2/build.log	2025-04-02 02:59:46.422719680 +0000
@@ -1,6 +1,6 @@
 I: pbuilder: network access will be disabled during build
-I: Current time: Mon May  4 21:20:59 -12 2026
-I: pbuilder-time-stamp: 1777972859
+I: Current time: Wed Apr  2 16:59:16 +14 2025
+I: pbuilder-time-stamp: 1743562756
 I: Building the build Environment
 I: extracting base tarball [/var/cache/pbuilder/unstable-reproducible-base.tgz]
 I: copying local configuration
@@ -20,51 +20,83 @@
 dpkg-source: info: unpacking apt-setup_0.193.tar.xz
 I: using fakeroot in build.
 I: Installing the build-deps
-I: user script /srv/workspace/pbuilder/4161701/tmp/hooks/D02_print_environment starting
+I: user script /srv/workspace/pbuilder/191153/tmp/hooks/D01_modify_environment starting
+debug: Running on infom01-amd64.
+I: Changing host+domainname to test build reproducibility
+I: Adding a custom variable just for the fun of it...
+I: Changing /bin/sh to bash
+'/bin/sh' -> '/bin/bash'
+lrwxrwxrwx 1 root root 9 Apr  2 02:59 /bin/sh -> /bin/bash
+I: Setting pbuilder2's login shell to /bin/bash
+I: Setting pbuilder2's GECOS to second user,second room,second work-phone,second home-phone,second other
+I: user script /srv/workspace/pbuilder/191153/tmp/hooks/D01_modify_environment finished
+I: user script /srv/workspace/pbuilder/191153/tmp/hooks/D02_print_environment starting
 I: set
-  BUILDDIR='/build/reproducible-path'
-  BUILDUSERGECOS='first user,first room,first work-phone,first home-phone,first other'
-  BUILDUSERNAME='pbuilder1'
-  BUILD_ARCH='amd64'
-  DEBIAN_FRONTEND='noninteractive'
+  BASH=/bin/sh
+  BASHOPTS=checkwinsize:cmdhist:complete_fullquote:extquote:force_fignore:globasciiranges:globskipdots:hostcomplete:interactive_comments:patsub_replacement:progcomp:promptvars:sourcepath
+  BASH_ALIASES=()
+  BASH_ARGC=()
+  BASH_ARGV=()
+  BASH_CMDS=()
+  BASH_LINENO=([0]="12" [1]="0")
+  BASH_LOADABLES_PATH=/usr/local/lib/bash:/usr/lib/bash:/opt/local/lib/bash:/usr/pkg/lib/bash:/opt/pkg/lib/bash:.
+  BASH_SOURCE=([0]="/tmp/hooks/D02_print_environment" [1]="/tmp/hooks/D02_print_environment")
+  BASH_VERSINFO=([0]="5" [1]="2" [2]="37" [3]="1" [4]="release" [5]="x86_64-pc-linux-gnu")
+  BASH_VERSION='5.2.37(1)-release'
+  BUILDDIR=/build/reproducible-path
+  BUILDUSERGECOS='second user,second room,second work-phone,second home-phone,second other'
+  BUILDUSERNAME=pbuilder2
+  BUILD_ARCH=amd64
+  DEBIAN_FRONTEND=noninteractive
   DEB_BUILD_OPTIONS='buildinfo=+all reproducible=+all parallel=12 '
-  DISTRIBUTION='unstable'
-  HOME='/root'
-  HOST_ARCH='amd64'
+  DIRSTACK=()
+  DISTRIBUTION=unstable
+  EUID=0
+  FUNCNAME=([0]="Echo" [1]="main")
+  GROUPS=()
+  HOME=/root
+  HOSTNAME=i-capture-the-hostname
+  HOSTTYPE=x86_64
+  HOST_ARCH=amd64
   IFS=' 	
   '
-  INVOCATION_ID='eb51054008f1431288a876dc5fcebef5'
-  LANG='C'
-  LANGUAGE='en_US:en'
-  LC_ALL='C'
-  MAIL='/var/mail/root'
-  OPTIND='1'
-  PATH='/usr/sbin:/usr/bin:/sbin:/bin:/usr/games'
-  PBCURRENTCOMMANDLINEOPERATION='build'
-  PBUILDER_OPERATION='build'
-  PBUILDER_PKGDATADIR='/usr/share/pbuilder'
-  PBUILDER_PKGLIBDIR='/usr/lib/pbuilder'
-  PBUILDER_SYSCONFDIR='/etc'
-  PPID='4161701'
-  PS1='# '
-  PS2='> '
+  INVOCATION_ID=eed1d064c7f94923a51e0b5d78bca201
+  LANG=C
+  LANGUAGE=et_EE:et
+  LC_ALL=C
+  MACHTYPE=x86_64-pc-linux-gnu
+  MAIL=/var/mail/root
+  OPTERR=1
+  OPTIND=1
+  OSTYPE=linux-gnu
+  PATH=/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/i/capture/the/path
+  PBCURRENTCOMMANDLINEOPERATION=build
+  PBUILDER_OPERATION=build
+  PBUILDER_PKGDATADIR=/usr/share/pbuilder
+  PBUILDER_PKGLIBDIR=/usr/lib/pbuilder
+  PBUILDER_SYSCONFDIR=/etc
+  PIPESTATUS=([0]="0")
+  POSIXLY_CORRECT=y
+  PPID=191153
   PS4='+ '
-  PWD='/'
-  SHELL='/bin/bash'
-  SHLVL='2'
-  SUDO_COMMAND='/usr/bin/timeout -k 18.1h 18h /usr/bin/ionice -c 3 /usr/bin/nice /usr/sbin/pbuilder --build --configfile /srv/reproducible-results/rbuild-debian/r-b-build.yzALzXgQ/pbuilderrc_ss2x --distribution unstable --hookdir /etc/pbuilder/first-build-hooks --debbuildopts -b --basetgz /var/cache/pbuilder/unstable-reproducible-base.tgz --buildresult /srv/reproducible-results/rbuild-debian/r-b-build.yzALzXgQ/b1 --logfile b1/build.log apt-setup_0.193.dsc'
-  SUDO_GID='109'
-  SUDO_UID='104'
-  SUDO_USER='jenkins'
-  TERM='unknown'
-  TZ='/usr/share/zoneinfo/Etc/GMT+12'
-  USER='root'
-  _='/usr/bin/systemd-run'
+  PWD=/
+  SHELL=/bin/bash
+  SHELLOPTS=braceexpand:errexit:hashall:interactive-comments:posix
+  SHLVL=3
+  SUDO_COMMAND='/usr/bin/timeout -k 24.1h 24h /usr/bin/ionice -c 3 /usr/bin/nice -n 11 /usr/bin/unshare --uts -- /usr/sbin/pbuilder --build --configfile /srv/reproducible-results/rbuild-debian/r-b-build.yzALzXgQ/pbuilderrc_21aP --distribution unstable --hookdir /etc/pbuilder/rebuild-hooks --debbuildopts -b --basetgz /var/cache/pbuilder/unstable-reproducible-base.tgz --buildresult /srv/reproducible-results/rbuild-debian/r-b-build.yzALzXgQ/b2 --logfile b2/build.log apt-setup_0.193.dsc'
+  SUDO_GID=109
+  SUDO_UID=104
+  SUDO_USER=jenkins
+  TERM=unknown
+  TZ=/usr/share/zoneinfo/Etc/GMT-14
+  UID=0
+  USER=root
+  _='I: set'
 I: uname -a
-  Linux infom02-amd64 6.12.12+bpo-amd64 #1 SMP PREEMPT_DYNAMIC Debian 6.12.12-1~bpo12+1 (2025-02-23) x86_64 GNU/Linux
+  Linux i-capture-the-hostname 6.1.0-32-cloud-amd64 #1 SMP PREEMPT_DYNAMIC Debian 6.1.129-1 (2025-03-06) x86_64 GNU/Linux
 I: ls -l /bin
-  lrwxrwxrwx 1 root root 7 Mar  4  2025 /bin -> usr/bin
-I: user script /srv/workspace/pbuilder/4161701/tmp/hooks/D02_print_environment finished
+  lrwxrwxrwx 1 root root 7 Mar  4 11:20 /bin -> usr/bin
+I: user script /srv/workspace/pbuilder/191153/tmp/hooks/D02_print_environment finished
  -> Attempting to satisfy build-dependencies
  -> Creating pbuilder-satisfydepends-dummy package
 Package: pbuilder-satisfydepends-dummy
@@ -146,7 +178,7 @@
 Get: 34 http://deb.debian.org/debian unstable/main amd64 libjq1 amd64 1.7.1-3+b1 [164 kB]
 Get: 35 http://deb.debian.org/debian unstable/main amd64 jq amd64 1.7.1-3+b1 [77.8 kB]
 Get: 36 http://deb.debian.org/debian unstable/main amd64 shunit2 all 2.1.8-4 [33.9 kB]
-Fetched 12.2 MB in 0s (49.8 MB/s)
+Fetched 12.2 MB in 0s (79.8 MB/s)
 Preconfiguring packages ...
 Selecting previously unselected package sensible-utils.
 (Reading database ... 
(Reading database ... 5%
(Reading database ... 10%
(Reading database ... 15%
(Reading database ... 20%
(Reading database ... 25%
(Reading database ... 30%
(Reading database ... 35%
(Reading database ... 40%
(Reading database ... 45%
(Reading database ... 50%
(Reading database ... 55%
(Reading database ... 60%
(Reading database ... 65%
(Reading database ... 70%
(Reading database ... 75%
(Reading database ... 80%
(Reading database ... 85%
(Reading database ... 90%
(Reading database ... 95%
(Reading database ... 100%
(Reading database ... 19804 files and directories currently installed.)
@@ -310,7 +342,11 @@
 fakeroot is already the newest version (1.37.1.1-1).
 0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
 I: Building the package
-I: Running cd /build/reproducible-path/apt-setup-0.193/ && env PATH="/usr/sbin:/usr/bin:/sbin:/bin:/usr/games" HOME="/nonexistent/first-build" dpkg-buildpackage -us -uc -b && env PATH="/usr/sbin:/usr/bin:/sbin:/bin:/usr/games" HOME="/nonexistent/first-build" dpkg-genchanges -S  > ../apt-setup_0.193_source.changes
+I: user script /srv/workspace/pbuilder/191153/tmp/hooks/A99_set_merged_usr starting
+Not re-configuring usrmerge for unstable
+I: user script /srv/workspace/pbuilder/191153/tmp/hooks/A99_set_merged_usr finished
+hostname: Name or service not known
+I: Running cd /build/reproducible-path/apt-setup-0.193/ && env PATH="/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/i/capture/the/path" HOME="/nonexistent/second-build" dpkg-buildpackage -us -uc -b && env PATH="/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/i/capture/the/path" HOME="/nonexistent/second-build" dpkg-genchanges -S  > ../apt-setup_0.193_source.changes
 dpkg-buildpackage: info: source package apt-setup
 dpkg-buildpackage: info: source version 1:0.193
 dpkg-buildpackage: info: source distribution unstable
@@ -335,81 +371,56 @@
 	make -j12 test
 make[1]: Entering directory '/build/reproducible-path/apt-setup-0.193'
 FAKECHROOT_EXCLUDE_PATH=/tmp:/dev:/bin:/usr/bin:/usr/share/shunit2:/build/reproducible-path/apt-setup-0.193 fakechroot chroot test/chroot ./cd-exec /build/reproducible-path/apt-setup-0.193 /build/reproducible-path/apt-setup-0.193/test/20-local-repo-upgrade.sh
+./cd-exec: line 3: cd: /build/reproducible-path/apt-setup-0.193: No such file or directory
 test_no_extra_repo
+/build/reproducible-path/apt-setup-0.193/test/20-local-repo-upgrade.sh: .: line 6: can't open 'post-base-installer.d/03apt-local-repo-upgrade': No such file or directory
 test_file_uri
+/build/reproducible-path/apt-setup-0.193/test/20-local-repo-upgrade.sh: .: line 13: can't open 'post-base-installer.d/03apt-local-repo-upgrade': No such file or directory
+ASSERT:extra repo requires apt upgrade Not found:<upgrade>
 test_devel_https
+/build/reproducible-path/apt-setup-0.193/test/20-local-repo-upgrade.sh: .: line 20: can't open 'post-base-installer.d/03apt-local-repo-upgrade': No such file or directory
+ASSERT:extra repo requires an apt upgrade Not found:<upgrade>
+ASSERT:HTTPS needs ca-certificates Not found:<ca-certificates>
+shunit2:ERROR test_devel_https() returned non-zero return code.
 test_devel_http
+/build/reproducible-path/apt-setup-0.193/test/20-local-repo-upgrade.sh: .: line 27: can't open 'post-base-installer.d/03apt-local-repo-upgrade': No such file or directory
+ASSERT:extra repo requires an apt upgrade Not found:<upgrade>
+shunit2:ERROR test_devel_http() returned non-zero return code.
 test_local0_https
+/build/reproducible-path/apt-setup-0.193/test/20-local-repo-upgrade.sh: .: line 34: can't open 'post-base-installer.d/03apt-local-repo-upgrade': No such file or directory
+ASSERT:extra repo requires an apt upgrade Not found:<upgrade>
+ASSERT:HTTPS needs ca-certificates Not found:<ca-certificates>
+shunit2:ERROR test_local0_https() returned non-zero return code.
 test_local0_http
+/build/reproducible-path/apt-setup-0.193/test/20-local-repo-upgrade.sh: .: line 41: can't open 'post-base-installer.d/03apt-local-repo-upgrade': No such file or directory
+ASSERT:extra repo requires an apt upgrade Not found:<upgrade>
+shunit2:ERROR test_local0_http() returned non-zero return code.
 test_local0_http_local1_https
+/build/reproducible-path/apt-setup-0.193/test/20-local-repo-upgrade.sh: .: line 48: can't open 'post-base-installer.d/03apt-local-repo-upgrade': No such file or directory
+ASSERT:extra repo requires an apt upgrade Not found:<upgrade>
+ASSERT:HTTPS needs ca-certificates Not found:<ca-certificates>
+shunit2:ERROR test_local0_http_local1_https() returned non-zero return code.
 
 Ran 7 tests.
 
-OK
-FAKECHROOT_EXCLUDE_PATH=/tmp:/dev:/bin:/usr/bin:/usr/share/shunit2:/build/reproducible-path/apt-setup-0.193 fakechroot chroot test/chroot ./cd-exec /build/reproducible-path/apt-setup-0.193 /build/reproducible-path/apt-setup-0.193/test/60local.sh
-test_no_locals
-test__DEVEL_repo
-test_comment
-test_key
-test_source
-test_gpg_asc
-test_failed_fetch
-test_ignore_failed_fetch
-test_multi_repo
-
-Ran 9 tests.
-
-OK
+FAILED (failures=14)
+make[1]: *** [Makefile:16: test] Error 1
 make[1]: Leaving directory '/build/reproducible-path/apt-setup-0.193'
-   create-stamp debian/debhelper-build-stamp
-   dh_prep
-   dh_auto_install
-   dh_install
-   dh_installdocs
-   dh_installchangelogs
-   debian/rules override_dh_installdebconf-arch
-make[1]: Entering directory '/build/reproducible-path/apt-setup-0.193'
-dh_installdebconf
-sed -i 's/@MULTIARCH@//' \
-	debian/apt-setup-udeb/DEBIAN/templates
-make[1]: Leaving directory '/build/reproducible-path/apt-setup-0.193'
-   dh_installdebconf -Napt-setup-udeb
-WARNING: se: spurious newline removed
-WARNING: se: spurious newline removed
-WARNING: se: spurious newline removed
-   dh_perl
-   dh_link
-   dh_strip_nondeterminism
-   dh_compress
-   dh_fixperms
-   dh_missing
-   dh_dwz -a
-   dh_strip -a
-   dh_makeshlibs -a
-   dh_shlibdeps -a
-   dh_installdeb
-   dh_gencontrol
-   dh_md5sums
-   dh_builddeb
-dpkg-deb: building package 'apt-setup-udeb' in 'debian/.debhelper/scratch-space/build-apt-setup-udeb/apt-setup-udeb_0.193_amd64.deb'.
-dpkg-deb: building package 'apt-cdrom-setup' in 'debian/.debhelper/scratch-space/build-apt-cdrom-setup/apt-cdrom-setup_0.193_all.deb'.
-dpkg-deb: building package 'apt-mirror-setup' in 'debian/.debhelper/scratch-space/build-apt-mirror-setup/apt-mirror-setup_0.193_all.deb'.
-	Renaming apt-setup-udeb_0.193_amd64.deb to apt-setup-udeb_0.193_amd64.udeb
-	Renaming apt-mirror-setup_0.193_all.deb to apt-mirror-setup_0.193_all.udeb
-	Renaming apt-cdrom-setup_0.193_all.deb to apt-cdrom-setup_0.193_all.udeb
- dpkg-genbuildinfo --build=binary -O../apt-setup_0.193_amd64.buildinfo
- dpkg-genchanges --build=binary -O../apt-setup_0.193_amd64.changes
-dpkg-genchanges: info: binary-only upload (no source code included)
- dpkg-source --after-build .
-dpkg-buildpackage: info: source-only upload: Debian-native package
-dpkg-genchanges: info: including full source code in upload
+dh_auto_test: error: make -j12 test returned exit code 2
+make: *** [debian/rules:3: binary] Error 25
+dpkg-buildpackage: error: debian/rules binary subprocess returned exit status 2
 I: copying local configuration
+E: Failed autobuilding of package
+I: user script /srv/workspace/pbuilder/191153/tmp/hooks/C01_cleanup starting
+debug output: disk usage on i-capture-the-hostname at Wed Apr  2 02:59:45 UTC 2025
+Filesystem      Size  Used Avail Use% Mounted on
+tmpfs            12G     0   12G   0% /dev/shm
+
+I: user script /srv/workspace/pbuilder/191153/tmp/hooks/C01_cleanup finished
 I: unmounting dev/ptmx filesystem
 I: unmounting dev/pts filesystem
 I: unmounting dev/shm filesystem
 I: unmounting proc filesystem
 I: unmounting sys filesystem
 I: cleaning the build env 
-I: removing directory /srv/workspace/pbuilder/4161701 and its subdirectories
-I: Current time: Mon May  4 21:22:12 -12 2026
-I: pbuilder-time-stamp: 1777972932
+I: removing directory /srv/workspace/pbuilder/191153 and its subdirectories