Diff of the two buildlogs:

--
--- b1/build.log	2025-03-05 18:56:39.675027995 +0000
+++ b2/build.log	2025-03-05 19:01:31.333848985 +0000
@@ -1,6 +1,6 @@
 I: pbuilder: network access will be disabled during build
-I: Current time: Tue Apr  7 13:16:46 -12 2026
-I: pbuilder-time-stamp: 1775611006
+I: Current time: Thu Mar  6 08:56:41 +14 2025
+I: pbuilder-time-stamp: 1741201001
 I: Building the build Environment
 I: extracting base tarball [/var/cache/pbuilder/trixie-reproducible-base.tgz]
 I: copying local configuration
@@ -22,52 +22,84 @@
 dpkg-source: info: unpacking gxkb_0.9.6+ds-1.debian.tar.xz
 I: Not using root during the build.
 I: Installing the build-deps
-I: user script /srv/workspace/pbuilder/79773/tmp/hooks/D02_print_environment starting
+I: user script /srv/workspace/pbuilder/3892297/tmp/hooks/D01_modify_environment starting
+debug: Running on ionos1-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 Mar  5 18:56 /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/3892297/tmp/hooks/D01_modify_environment finished
+I: user script /srv/workspace/pbuilder/3892297/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'
-  DEB_BUILD_OPTIONS='buildinfo=+all reproducible=+all parallel=42 '
-  DISTRIBUTION='trixie'
-  HOME='/root'
-  HOST_ARCH='amd64'
+  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=20 '
+  DIRSTACK=()
+  DISTRIBUTION=trixie
+  EUID=0
+  FUNCNAME=([0]="Echo" [1]="main")
+  GROUPS=()
+  HOME=/root
+  HOSTNAME=i-capture-the-hostname
+  HOSTTYPE=x86_64
+  HOST_ARCH=amd64
   IFS=' 	
   '
-  INVOCATION_ID='d8220f359a3c484f9eb7c76e40544bcb'
-  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='79773'
-  PS1='# '
-  PS2='> '
+  INVOCATION_ID=bba4fe37a64d4e9eaf7be44ac8d44090
+  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=3892297
   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.bPpeBWnM/pbuilderrc_BUqK --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.bPpeBWnM/b1 --logfile b1/build.log gxkb_0.9.6+ds-1.dsc'
-  SUDO_GID='111'
-  SUDO_UID='106'
-  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.bPpeBWnM/pbuilderrc_lljk --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.bPpeBWnM/b2 --logfile b2/build.log gxkb_0.9.6+ds-1.dsc'
+  SUDO_GID=110
+  SUDO_UID=105
+  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 ionos15-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 6.1.0-31-amd64 #1 SMP PREEMPT_DYNAMIC Debian 6.1.128-1 (2025-02-07) 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/79773/tmp/hooks/D02_print_environment finished
+  lrwxrwxrwx 1 root root 7 Nov 22 14:40 /bin -> usr/bin
+I: user script /srv/workspace/pbuilder/3892297/tmp/hooks/D02_print_environment finished
  -> Attempting to satisfy build-dependencies
  -> Creating pbuilder-satisfydepends-dummy package
 Package: pbuilder-satisfydepends-dummy
@@ -443,7 +475,7 @@
 Get: 330 http://deb.debian.org/debian trixie/main amd64 libwnck-3-dev amd64 43.2-1 [119 kB]
 Get: 331 http://deb.debian.org/debian trixie/main amd64 libxml2-dev amd64 2.12.7+dfsg+really2.9.14-0.2+b2 [794 kB]
 Get: 332 http://deb.debian.org/debian trixie/main amd64 libxklavier-dev amd64 5.4-5+b2 [72.0 kB]
-Fetched 141 MB in 26s (5415 kB/s)
+Fetched 141 MB in 13s (10.5 MB/s)
 Preconfiguring packages ...
 Selecting previously unselected package libsystemd-shared:amd64.
 (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 ... 19800 files and directories currently installed.)
@@ -1522,8 +1554,8 @@
 Setting up tzdata (2025a-2) ...
 
 Current default time zone: 'Etc/UTC'
-Local time is now:      Wed Apr  8 01:19:09 UTC 2026.
-Universal Time is now:  Wed Apr  8 01:19:09 UTC 2026.
+Local time is now:      Wed Mar  5 18:59:11 UTC 2025.
+Universal Time is now:  Wed Mar  5 18:59:11 UTC 2025.
 Run 'dpkg-reconfigure tzdata' if you wish to change it.
 
 Setting up libxcb-present0:amd64 (1.17.0-2+b1) ...
@@ -1820,7 +1852,11 @@
 Building tag database...
  -> Finished parsing the build-deps
 I: Building the package
-I: Running cd /build/reproducible-path/gxkb-0.9.6+ds/ && 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  > ../gxkb_0.9.6+ds-1_source.changes
+I: user script /srv/workspace/pbuilder/3892297/tmp/hooks/A99_set_merged_usr starting
+Not re-configuring usrmerge for trixie
+I: user script /srv/workspace/pbuilder/3892297/tmp/hooks/A99_set_merged_usr finished
+hostname: Name or service not known
+I: Running cd /build/reproducible-path/gxkb-0.9.6+ds/ && 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  > ../gxkb_0.9.6+ds-1_source.changes
 dpkg-buildpackage: info: source package gxkb
 dpkg-buildpackage: info: source version 0.9.6+ds-1
 dpkg-buildpackage: info: source distribution unstable
@@ -1911,7 +1947,7 @@
 config.status: executing depfiles commands
 make[1]: Leaving directory '/build/reproducible-path/gxkb-0.9.6+ds'
    dh_auto_build
-	make -j42
+	make -j20
 make[1]: Entering directory '/build/reproducible-path/gxkb-0.9.6+ds'
 Making all in src
 make[2]: Entering directory '/build/reproducible-path/gxkb-0.9.6+ds/src'
@@ -1942,21 +1978,9 @@
 statusicon.c:134:5: warning: 'app_indicator_set_icon' is deprecated: Use app_indicator_set_icon_full instead [-Wdeprecated-declarations]
   134 |     app_indicator_set_icon(appindicator, filepath);
       |     ^~~~~~~~~~~~~~~~~~~~~~
-gxkb.c: In function 'xkb_new':
 /usr/include/libayatana-appindicator3-0.1/libayatana-appindicator/app-indicator.h:269:33: note: declared here
   269 | void                            app_indicator_set_icon           (AppIndicator       *self,
       |                                 ^~~~~~~~~~~~~~~~~~~~~~
-gxkb.c:71:3: warning: 'wnck_screen_get_default' is deprecated: Use 'wnck_handle_get_default_screen' instead [-Wdeprecated-declarations]
-   71 |   wnck_screen = wnck_screen_get_default();
-      |   ^~~~~~~~~~~
-In file included from /usr/include/libwnck-3.0/libwnck/wnck-handle.h:26,
-                 from /usr/include/libwnck-3.0/libwnck/libwnck.h:26,
-                 from xkb-callbacks.h:30,
-                 from statusicon.h:35,
-                 from gxkb.c:31:
-/usr/include/libwnck-3.0/libwnck/screen.h:200:16: note: declared here
-  200 | WnckScreen*    wnck_screen_get_default              (void);
-      |                ^~~~~~~~~~~~~~~~~~~~~~~
 statusicon.c: In function 'statusicon_update_menu':
 statusicon.c:159:5: warning: 'gtk_image_menu_item_new_with_label' is deprecated: Use 'gtk_menu_item_new_with_label' instead [-Wdeprecated-declarations]
   159 |     GtkWidget *menu_item = gtk_image_menu_item_new_with_label(layout_string);
@@ -2003,6 +2027,18 @@
 /usr/include/gtk-3.0/gtk/deprecated/gtkstatusicon.h:151:23: note: declared here
   151 | void                  gtk_status_icon_set_visible        (GtkStatusIcon      *status_icon,
       |                       ^~~~~~~~~~~~~~~~~~~~~~~~~~~
+gxkb.c: In function 'xkb_new':
+gxkb.c:71:3: warning: 'wnck_screen_get_default' is deprecated: Use 'wnck_handle_get_default_screen' instead [-Wdeprecated-declarations]
+   71 |   wnck_screen = wnck_screen_get_default();
+      |   ^~~~~~~~~~~
+In file included from /usr/include/libwnck-3.0/libwnck/wnck-handle.h:26,
+                 from /usr/include/libwnck-3.0/libwnck/libwnck.h:26,
+                 from xkb-callbacks.h:30,
+                 from statusicon.h:35,
+                 from gxkb.c:31:
+/usr/include/libwnck-3.0/libwnck/screen.h:200:16: note: declared here
+  200 | WnckScreen*    wnck_screen_get_default              (void);
+      |                ^~~~~~~~~~~~~~~~~~~~~~~
 gcc -O2 -I/usr/include/gtk-3.0 -I/usr/include/pango-1.0 -I/usr/include/glib-2.0 -I/usr/lib/x86_64-linux-gnu/glib-2.0/include -I/usr/include/sysprof-6 -I/usr/include/harfbuzz -I/usr/include/freetype2 -I/usr/include/libpng16 -I/usr/include/libmount -I/usr/include/blkid -I/usr/include/fribidi -I/usr/include/cairo -I/usr/include/pixman-1 -I/usr/include/gdk-pixbuf-2.0 -I/usr/include/x86_64-linux-gnu -I/usr/include/webp -I/usr/include/gio-unix-2.0 -I/usr/include/cloudproviders -I/usr/include/atk-1.0 -I/usr/include/at-spi2-atk/2.0 -I/usr/include/at-spi-2.0 -I/usr/include/dbus-1.0 -I/usr/lib/x86_64-linux-gnu/dbus-1.0/include -pthread  -I/usr/include/glib-2.0 -I/usr/lib/x86_64-linux-gnu/glib-2.0/include -I/usr/include/sysprof-6 -pthread  -I/usr/include/glib-2.0 -I/usr/lib/x86_64-linux-gnu/glib-2.0/include -I/usr/include/sysprof-6 -pthread -I/usr/include/libxml2  -I/usr/include/libwnck-3.0 -I/usr/include/glib-2.0 -I/usr/lib/x86_64-linux-gnu/glib-2.0/include -I/usr/include/sysprof-6 -I/usr/include/gtk-3.0 -I/usr/include/pango-1.0 -I/usr/include/harfbuzz -I/usr/include/freetype2 -I/usr/include/libpng16 -I/usr/include/libmount -I/usr/include/blkid -I/usr/include/fribidi -I/usr/include/cairo -I/usr/include/pixman-1 -I/usr/include/gdk-pixbuf-2.0 -I/usr/include/x86_64-linux-gnu -I/usr/include/webp -I/usr/include/gio-unix-2.0 -I/usr/include/cloudproviders -I/usr/include/atk-1.0 -I/usr/include/at-spi2-atk/2.0 -I/usr/include/at-spi-2.0 -I/usr/include/dbus-1.0 -I/usr/lib/x86_64-linux-gnu/dbus-1.0/include -pthread -I/usr/include/startup-notification-1.0  -I/usr/include/libayatana-appindicator3-0.1 -I/usr/include/libayatana-indicator3-0.4 -I/usr/include/gtk-3.0 -I/usr/include/pango-1.0 -I/usr/include/glib-2.0 -I/usr/lib/x86_64-linux-gnu/glib-2.0/include -I/usr/include/sysprof-6 -I/usr/include/harfbuzz -I/usr/include/freetype2 -I/usr/include/libpng16 -I/usr/include/libmount -I/usr/include/blkid -I/usr/include/fribidi -I/usr/include/cairo -I/usr/include/pixman-1 -I/usr/include/gdk-pixbuf-2.0 -I/usr/include/x86_64-linux-gnu -I/usr/include/webp -I/usr/include/gio-unix-2.0 -I/usr/include/cloudproviders -I/usr/include/atk-1.0 -I/usr/include/at-spi2-atk/2.0 -I/usr/include/at-spi-2.0 -I/usr/include/dbus-1.0 -I/usr/lib/x86_64-linux-gnu/dbus-1.0/include -I/usr/include/libayatana-ido3-0.4 -I/usr/include/libdbusmenu-glib-0.4 -pthread  -DFLAGSDIR=\"/usr/share/gxkb/flags\" -DAPPICON=\"/usr/share/gxkb/logo.png\" -g -O2 -Werror=implicit-function-declaration -ffile-prefix-map=/build/reproducible-path/gxkb-0.9.6+ds=. -fstack-protector-strong -fstack-clash-protection -Wformat -Werror=format-security -fcf-protection -Wl,--as-needed -Wl,-z,relro -Wl,-z,now -o gxkb gxkb-gxkb.o gxkb-xkb-callbacks.o gxkb-xkb-config.o gxkb-statusicon.o gxkb-xkb-util.o -lgtk-3 -lgdk-3 -lz -lpangocairo-1.0 -lpango-1.0 -lharfbuzz -latk-1.0 -lcairo-gobject -lcairo -lgdk_pixbuf-2.0 -lgio-2.0 -lgobject-2.0 -lglib-2.0  -lglib-2.0  -lxklavier  -lwnck-3 -lgtk-3 -lgdk-3 -lz -lpangocairo-1.0 -lpango-1.0 -lharfbuzz -latk-1.0 -lcairo-gobject -lcairo -lgdk_pixbuf-2.0 -lgio-2.0 -lgobject-2.0 -lglib-2.0  -layatana-appindicator3 -layatana-indicator3 -layatana-ido3-0.4 -ldbusmenu-glib -lgtk-3 -lgdk-3 -lz -lpangocairo-1.0 -lpango-1.0 -lharfbuzz -latk-1.0 -lcairo-gobject -lcairo -lgdk_pixbuf-2.0 -lgio-2.0 -lgobject-2.0 -lglib-2.0  
 make[3]: Leaving directory '/build/reproducible-path/gxkb-0.9.6+ds/src'
 make[2]: Leaving directory '/build/reproducible-path/gxkb-0.9.6+ds/src'
@@ -2029,7 +2065,7 @@
 make[2]: Leaving directory '/build/reproducible-path/gxkb-0.9.6+ds'
 make[1]: Leaving directory '/build/reproducible-path/gxkb-0.9.6+ds'
    dh_auto_test
-	make -j42 check "TESTSUITEFLAGS=-j42 --verbose" VERBOSE=1
+	make -j20 check "TESTSUITEFLAGS=-j20 --verbose" VERBOSE=1
 make[1]: Entering directory '/build/reproducible-path/gxkb-0.9.6+ds'
 Making check in src
 make[2]: Entering directory '/build/reproducible-path/gxkb-0.9.6+ds/src'
@@ -2061,13 +2097,13 @@
    debian/rules override_dh_auto_install
 make[1]: Entering directory '/build/reproducible-path/gxkb-0.9.6+ds'
 dh_auto_install
-	make -j42 install DESTDIR=/build/reproducible-path/gxkb-0.9.6\+ds/debian/gxkb AM_UPDATE_INFO_DIR=no
+	make -j20 install DESTDIR=/build/reproducible-path/gxkb-0.9.6\+ds/debian/gxkb AM_UPDATE_INFO_DIR=no
 make[2]: Entering directory '/build/reproducible-path/gxkb-0.9.6+ds'
 Making install in src
 make[3]: Entering directory '/build/reproducible-path/gxkb-0.9.6+ds/src'
 make[4]: Entering directory '/build/reproducible-path/gxkb-0.9.6+ds/src'
-make[4]: Nothing to be done for 'install-data-am'.
  /usr/bin/mkdir -p '/build/reproducible-path/gxkb-0.9.6+ds/debian/gxkb/usr/bin'
+make[4]: Nothing to be done for 'install-data-am'.
   /usr/bin/install -c gxkb '/build/reproducible-path/gxkb-0.9.6+ds/debian/gxkb/usr/bin'
 make[4]: Leaving directory '/build/reproducible-path/gxkb-0.9.6+ds/src'
 make[3]: Leaving directory '/build/reproducible-path/gxkb-0.9.6+ds/src'
@@ -2150,12 +2186,14 @@
 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/3892297/tmp/hooks/B01_cleanup starting
+I: user script /srv/workspace/pbuilder/3892297/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/79773 and its subdirectories
-I: Current time: Tue Apr  7 13:19:39 -12 2026
-I: pbuilder-time-stamp: 1775611179
+I: removing directory /srv/workspace/pbuilder/3892297 and its subdirectories
+I: Current time: Thu Mar  6 09:01:30 +14 2025
+I: pbuilder-time-stamp: 1741201290