Diff of the two buildlogs:

--
--- b1/build.log	2025-02-01 08:23:39.071153634 +0000
+++ b2/build.log	2025-02-01 08:24:58.039583059 +0000
@@ -1,6 +1,6 @@
 I: pbuilder: network access will be disabled during build
-I: Current time: Fri Mar  6 02:45:38 -12 2026
-I: pbuilder-time-stamp: 1772808338
+I: Current time: Sat Feb  1 22:23:41 +14 2025
+I: pbuilder-time-stamp: 1738398221
 I: Building the build Environment
 I: extracting base tarball [/var/cache/pbuilder/trixie-reproducible-base.tgz]
 I: copying local configuration
@@ -25,54 +25,86 @@
 dpkg-source: info: applying 0001-build-No-need-to-update-desktop-MIME-cache.patch
 I: Not using root during the build.
 I: Installing the build-deps
-I: user script /srv/workspace/pbuilder/1659/tmp/hooks/D02_print_environment starting
+I: user script /srv/workspace/pbuilder/23797/tmp/hooks/D01_modify_environment starting
+debug: Running on ionos12-i386.
+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 Feb  1 08:23 /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/23797/tmp/hooks/D01_modify_environment finished
+I: user script /srv/workspace/pbuilder/23797/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='i386'
-  DEBIAN_FRONTEND='noninteractive'
-  DEB_BUILD_OPTIONS='buildinfo=+all reproducible=+all parallel=22 '
-  DISTRIBUTION='trixie'
-  HOME='/root'
-  HOST_ARCH='i386'
+  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]="i686-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=i386
+  DEBIAN_FRONTEND=noninteractive
+  DEB_BUILD_OPTIONS='buildinfo=+all reproducible=+all parallel=10 '
+  DIRSTACK=()
+  DISTRIBUTION=trixie
+  EUID=0
+  FUNCNAME=([0]="Echo" [1]="main")
+  GROUPS=()
+  HOME=/root
+  HOSTNAME=i-capture-the-hostname
+  HOSTTYPE=i686
+  HOST_ARCH=i386
   IFS=' 	
   '
-  INVOCATION_ID='59ee784bbeb6497687a970adec1fb3b8'
-  LANG='C'
-  LANGUAGE='en_US:en'
-  LC_ALL='C'
-  LD_LIBRARY_PATH='/usr/lib/libeatmydata'
-  LD_PRELOAD='libeatmydata.so'
-  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='1659'
-  PS1='# '
-  PS2='> '
+  INVOCATION_ID=5d89837d9e044ee7ab86ead344336849
+  LANG=C
+  LANGUAGE=de_CH:de
+  LC_ALL=C
+  LD_LIBRARY_PATH=/usr/lib/libeatmydata
+  LD_PRELOAD=libeatmydata.so
+  MACHTYPE=i686-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=23797
   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.NJlZWmVX/pbuilderrc_mtbx --distribution trixie --hookdir /etc/pbuilder/first-build-hooks --debbuildopts -b --basetgz /var/cache/pbuilder/trixie-reproducible-base.tgz --buildresult /srv/reproducible-results/rbuild-debian/r-b-build.NJlZWmVX/b1 --logfile b1/build.log confy_0.8.0-1.dsc'
-  SUDO_GID='112'
-  SUDO_UID='107'
-  SUDO_USER='jenkins'
-  TERM='unknown'
-  TZ='/usr/share/zoneinfo/Etc/GMT+12'
-  USER='root'
-  _='/usr/bin/systemd-run'
-  http_proxy='http://213.165.73.152:3128'
+  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.NJlZWmVX/pbuilderrc_V5XO --distribution trixie --hookdir /etc/pbuilder/rebuild-hooks --debbuildopts -b --basetgz /var/cache/pbuilder/trixie-reproducible-base.tgz --buildresult /srv/reproducible-results/rbuild-debian/r-b-build.NJlZWmVX/b2 --logfile b2/build.log confy_0.8.0-1.dsc'
+  SUDO_GID=112
+  SUDO_UID=107
+  SUDO_USER=jenkins
+  TERM=unknown
+  TZ=/usr/share/zoneinfo/Etc/GMT-14
+  UID=0
+  USER=root
+  _='I: set'
+  http_proxy=http://46.16.76.132:3128
 I: uname -a
-  Linux ionos16-i386 6.1.0-30-amd64 #1 SMP PREEMPT_DYNAMIC Debian 6.1.124-1 (2025-01-12) x86_64 GNU/Linux
+  Linux i-capture-the-hostname 6.1.0-30-amd64 #1 SMP PREEMPT_DYNAMIC Debian 6.1.124-1 (2025-01-12) x86_64 GNU/Linux
 I: ls -l /bin
-  lrwxrwxrwx 1 root root 7 Nov 22  2024 /bin -> usr/bin
-I: user script /srv/workspace/pbuilder/1659/tmp/hooks/D02_print_environment finished
+  lrwxrwxrwx 1 root root 7 Nov 22 14:40 /bin -> usr/bin
+I: user script /srv/workspace/pbuilder/23797/tmp/hooks/D02_print_environment finished
  -> Attempting to satisfy build-dependencies
  -> Creating pbuilder-satisfydepends-dummy package
 Package: pbuilder-satisfydepends-dummy
@@ -357,7 +389,7 @@
 Get: 223 http://deb.debian.org/debian trixie/main i386 python3-dateutil all 2.9.0-3 [79.3 kB]
 Get: 224 http://deb.debian.org/debian trixie/main i386 python3-tz all 2024.2-1 [31.0 kB]
 Get: 225 http://deb.debian.org/debian trixie/main i386 python3-icalendar all 6.0.1-1 [95.5 kB]
-Fetched 78.4 MB in 1s (70.2 MB/s)
+Fetched 78.4 MB in 1s (71.4 MB/s)
 Preconfiguring packages ...
 Selecting previously unselected package libsystemd-shared:i386.
 (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 ... 19834 files and directories currently installed.)
@@ -1108,8 +1140,8 @@
 Setting up tzdata (2024b-6) ...
 
 Current default time zone: 'Etc/UTC'
-Local time is now:      Fri Mar  6 14:46:07 UTC 2026.
-Universal Time is now:  Fri Mar  6 14:46:07 UTC 2026.
+Local time is now:      Sat Feb  1 08:24:20 UTC 2025.
+Universal Time is now:  Sat Feb  1 08:24:20 UTC 2025.
 Run 'dpkg-reconfigure tzdata' if you wish to change it.
 
 Setting up libsysprof-capture-4-dev:i386 (47.2-1) ...
@@ -1305,7 +1337,11 @@
 Building tag database...
  -> Finished parsing the build-deps
 I: Building the package
-I: Running cd /build/reproducible-path/confy-0.8.0/ && 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  > ../confy_0.8.0-1_source.changes
+I: user script /srv/workspace/pbuilder/23797/tmp/hooks/A99_set_merged_usr starting
+Not re-configuring usrmerge for trixie
+I: user script /srv/workspace/pbuilder/23797/tmp/hooks/A99_set_merged_usr finished
+hostname: Name or service not known
+I: Running cd /build/reproducible-path/confy-0.8.0/ && 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  > ../confy_0.8.0-1_source.changes
 dpkg-buildpackage: info: source package confy
 dpkg-buildpackage: info: source version 0.8.0-1
 dpkg-buildpackage: info: source distribution unstable
@@ -1378,33 +1414,33 @@
 
 Found ninja-1.12.1 at /usr/bin/ninja
    dh_auto_build
-	cd obj-i686-linux-gnu && LC_ALL=C.UTF-8 ninja -j22 -v
-[1/11] /usr/bin/msgfmt -o po/de/LC_MESSAGES/confy.mo ../po/de.po
-[2/11] /usr/bin/msgfmt -o po/fr/LC_MESSAGES/confy.mo ../po/fr.po
-[3/11] /usr/bin/msgfmt -o po/sv/LC_MESSAGES/confy.mo ../po/sv.po
-[4/11] /usr/bin/msgfmt -o po/it/LC_MESSAGES/confy.mo ../po/it.po
-[5/11] /usr/bin/glib-compile-resources ../data/data.gresource.xml --sourcedir ../data --internal --generate --target data/confy.data.gresource --dependency-file data/confy.data.gresource.d
+	cd obj-i686-linux-gnu && LC_ALL=C.UTF-8 ninja -j10 -v
+[1/11] /usr/bin/glib-compile-resources ../data/data.gresource.xml --sourcedir ../data --internal --generate --target data/confy.data.gresource --dependency-file data/confy.data.gresource.d
 xml-stripblanks preprocessing requested, but XMLLINT is not set, and xmllint is not in PATH
-[6/11] /usr/bin/meson --internal msgfmthelper --msgfmt=/usr/bin/msgfmt ../data/net.kirgroup.confy.desktop.in data/net.kirgroup.confy.desktop desktop ../data/../po
-[7/11] /usr/bin/meson --internal msgfmthelper --msgfmt=/usr/bin/msgfmt ../data/net.kirgroup.confy.metainfo.xml.in data/net.kirgroup.confy.metainfo.xml xml /build/reproducible-path/confy-0.8.0/po
+[2/11] /usr/bin/msgfmt -o po/de/LC_MESSAGES/confy.mo ../po/de.po
+[3/11] /usr/bin/msgfmt -o po/sv/LC_MESSAGES/confy.mo ../po/sv.po
+[4/11] /usr/bin/msgfmt -o po/fr/LC_MESSAGES/confy.mo ../po/fr.po
+[5/11] /usr/bin/msgfmt -o po/it/LC_MESSAGES/confy.mo ../po/it.po
+[6/11] /usr/bin/meson --internal msgfmthelper --msgfmt=/usr/bin/msgfmt ../data/net.kirgroup.confy.metainfo.xml.in data/net.kirgroup.confy.metainfo.xml xml /build/reproducible-path/confy-0.8.0/po
+[7/11] /usr/bin/meson --internal msgfmthelper --msgfmt=/usr/bin/msgfmt ../data/net.kirgroup.confy.desktop.in data/net.kirgroup.confy.desktop desktop ../data/../po
 [8/11] /usr/bin/blueprint-compiler batch-compile src/widgets ../src/widgets ../src/widgets/searchbaroverlay.blp ../src/widgets/eventeditdialog.blp ../src/widgets/loaderpage.blp ../src/widgets/starbutton.blp
 [9/11] /usr/bin/blueprint-compiler batch-compile src ../src ../src/openwindow.blp ../src/mainwindow.blp ../src/shortcuts.blp
 [10/11] /usr/bin/blueprint-compiler batch-compile src/pages ../src/pages ../src/pages/info.blp ../src/pages/list.blp ../src/pages/events.blp ../src/pages/details.blp
 [11/11] /usr/bin/glib-compile-resources ../src/confy.gresource.xml --sourcedir ../src/src --sourcedir src --sourcedir src/widgets --sourcedir src/pages --sourcedir ../src --internal --generate --target src/confy.gresource --dependency-file src/confy.gresource.d
 xml-stripblanks preprocessing requested, but XMLLINT is not set, and xmllint is not in PATH
    dh_auto_test
-	cd obj-i686-linux-gnu && DEB_PYTHON_INSTALL_LAYOUT=deb LC_ALL=C.UTF-8 MESON_TESTTHREADS=22 meson test --verbose
+	cd obj-i686-linux-gnu && DEB_PYTHON_INSTALL_LAYOUT=deb LC_ALL=C.UTF-8 MESON_TESTTHREADS=10 meson test --verbose
 ninja: Entering directory `/build/reproducible-path/confy-0.8.0/obj-i686-linux-gnu'
 ninja: no work to do.
 1/2 Validate appstream file RUNNING       
->>> MESON_TEST_ITERATION=1 MALLOC_PERTURB_=6 ASAN_OPTIONS=halt_on_error=1:abort_on_error=1:print_summary=1 MSAN_OPTIONS=halt_on_error=1:abort_on_error=1:print_summary=1:print_stacktrace=1 UBSAN_OPTIONS=halt_on_error=1:abort_on_error=1:print_summary=1:print_stacktrace=1 /usr/bin/appstream-util validate --nonet data/net.kirgroup.confy.metainfo.xml
+>>> MSAN_OPTIONS=halt_on_error=1:abort_on_error=1:print_summary=1:print_stacktrace=1 UBSAN_OPTIONS=halt_on_error=1:abort_on_error=1:print_summary=1:print_stacktrace=1 MALLOC_PERTURB_=106 MESON_TEST_ITERATION=1 ASAN_OPTIONS=halt_on_error=1:abort_on_error=1:print_summary=1 /usr/bin/appstream-util validate --nonet data/net.kirgroup.confy.metainfo.xml
 
 2/2 Validate schema file    RUNNING       
->>> MESON_TEST_ITERATION=1 ASAN_OPTIONS=halt_on_error=1:abort_on_error=1:print_summary=1 MSAN_OPTIONS=halt_on_error=1:abort_on_error=1:print_summary=1:print_stacktrace=1 UBSAN_OPTIONS=halt_on_error=1:abort_on_error=1:print_summary=1:print_stacktrace=1 MALLOC_PERTURB_=164 /usr/bin/glib-compile-schemas --strict --dry-run /build/reproducible-path/confy-0.8.0/data
+>>> MSAN_OPTIONS=halt_on_error=1:abort_on_error=1:print_summary=1:print_stacktrace=1 UBSAN_OPTIONS=halt_on_error=1:abort_on_error=1:print_summary=1:print_stacktrace=1 MESON_TEST_ITERATION=1 MALLOC_PERTURB_=136 ASAN_OPTIONS=halt_on_error=1:abort_on_error=1:print_summary=1 /usr/bin/glib-compile-schemas --strict --dry-run /build/reproducible-path/confy-0.8.0/data
 
 2/2 Validate schema file    OK              0.01s
 
-1/2 Validate appstream file OK              0.05s
+1/2 Validate appstream file OK              0.04s
 ――――――――――――――――――――――――――――――――――――― ✀  ―――――――――――――――――――――――――――――――――――――
 data/net.kirgroup.confy.metainfo.xml: OK
 ――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――
@@ -1418,7 +1454,7 @@
 Timeout:            0   
 
 Full log written to /build/reproducible-path/confy-0.8.0/obj-i686-linux-gnu/meson-logs/testlog.txt
-	rm -fr -- /tmp/dh-xdg-rundir-nB3Qhd87
+	rm -fr -- /tmp/dh-xdg-rundir-5NAh4EMe
    create-stamp debian/debhelper-build-stamp
    dh_prep
 	rm -f -- debian/confy.substvars
@@ -1558,12 +1594,14 @@
 dpkg-buildpackage: info: binary-only upload (no source included)
 dpkg-genchanges: info: including full source code in upload
 I: copying local configuration
+I: user script /srv/workspace/pbuilder/23797/tmp/hooks/B01_cleanup starting
+I: user script /srv/workspace/pbuilder/23797/tmp/hooks/B01_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/1659 and its subdirectories
-I: Current time: Fri Mar  6 02:46:36 -12 2026
-I: pbuilder-time-stamp: 1772808396
+I: removing directory /srv/workspace/pbuilder/23797 and its subdirectories
+I: Current time: Sat Feb  1 22:24:57 +14 2025
+I: pbuilder-time-stamp: 1738398297