Diff of the two buildlogs:

--
--- b1/build.log	2025-02-16 13:29:52.251573482 +0000
+++ b2/build.log	2025-02-16 13:35:27.692464741 +0000
@@ -1,6 +1,6 @@
 I: pbuilder: network access will be disabled during build
-I: Current time: Sat Mar 21 07:48:40 -12 2026
-I: pbuilder-time-stamp: 1774122520
+I: Current time: Mon Feb 17 03:29:58 +14 2025
+I: pbuilder-time-stamp: 1739712598
 I: Building the build Environment
 I: extracting base tarball [/var/cache/pbuilder/unstable-reproducible-base.tgz]
 I: copying local configuration
@@ -27,52 +27,84 @@
 dpkg-source: info: applying 0004-gettext-macro-0.20.patch
 I: Not using root during the build.
 I: Installing the build-deps
-I: user script /srv/workspace/pbuilder/515518/tmp/hooks/D02_print_environment starting
+I: user script /srv/workspace/pbuilder/2664146/tmp/hooks/D01_modify_environment starting
+debug: Running on ionos11-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 Feb 16 13:30 /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/2664146/tmp/hooks/D01_modify_environment finished
+I: user script /srv/workspace/pbuilder/2664146/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='unstable'
-  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=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='ebb592d7cc0d48ba9072405c9b687a71'
-  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='515518'
-  PS1='# '
-  PS2='> '
+  INVOCATION_ID=154bab13c8b94bfc99c5bd6f9dcdcb84
+  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=2664146
   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.CwWFK2n3/pbuilderrc_BlRJ --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.CwWFK2n3/b1 --logfile b1/build.log tuxfootball_0.3.1-10.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.CwWFK2n3/pbuilderrc_l4If --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.CwWFK2n3/b2 --logfile b2/build.log tuxfootball_0.3.1-10.dsc'
+  SUDO_GID=111
+  SUDO_UID=106
+  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 6.12.9+bpo-amd64 #1 SMP PREEMPT_DYNAMIC Debian 6.12.9-1~bpo12+1 (2025-01-19) 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/515518/tmp/hooks/D02_print_environment finished
+  lrwxrwxrwx 1 root root 7 Nov 22 14:40 /bin -> usr/bin
+I: user script /srv/workspace/pbuilder/2664146/tmp/hooks/D02_print_environment finished
  -> Attempting to satisfy build-dependencies
  -> Creating pbuilder-satisfydepends-dummy package
 Package: pbuilder-satisfydepends-dummy
@@ -388,7 +420,7 @@
 Get: 268 http://deb.debian.org/debian unstable/main amd64 libsdl-mixer1.2 amd64 1.2.12-19 [81.1 kB]
 Get: 269 http://deb.debian.org/debian unstable/main amd64 libvorbis-dev amd64 1.3.7-2+b1 [326 kB]
 Get: 270 http://deb.debian.org/debian unstable/main amd64 libsdl-mixer1.2-dev amd64 1.2.12-19 [97.6 kB]
-Fetched 119 MB in 3s (45.6 MB/s)
+Fetched 119 MB in 35s (3374 kB/s)
 Preconfiguring packages ...
 Selecting previously unselected package libpython3.13-minimal: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 ... 19808 files and directories currently installed.)
@@ -1259,8 +1291,8 @@
 Setting up tzdata (2025a-2) ...
 
 Current default time zone: 'Etc/UTC'
-Local time is now:      Sat Mar 21 19:50:01 UTC 2026.
-Universal Time is now:  Sat Mar 21 19:50:01 UTC 2026.
+Local time is now:      Sun Feb 16 13:32:02 UTC 2025.
+Universal Time is now:  Sun Feb 16 13:32:02 UTC 2025.
 Run 'dpkg-reconfigure tzdata' if you wish to change it.
 
 Setting up libxcb-present0:amd64 (1.17.0-2+b1) ...
@@ -1508,7 +1540,11 @@
 Building tag database...
  -> Finished parsing the build-deps
 I: Building the package
-I: Running cd /build/reproducible-path/tuxfootball-0.3.1/ && 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  > ../tuxfootball_0.3.1-10_source.changes
+I: user script /srv/workspace/pbuilder/2664146/tmp/hooks/A99_set_merged_usr starting
+Not re-configuring usrmerge for unstable
+I: user script /srv/workspace/pbuilder/2664146/tmp/hooks/A99_set_merged_usr finished
+hostname: Name or service not known
+I: Running cd /build/reproducible-path/tuxfootball-0.3.1/ && 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  > ../tuxfootball_0.3.1-10_source.changes
 dpkg-buildpackage: info: source package tuxfootball
 dpkg-buildpackage: info: source version 0.3.1-10
 dpkg-buildpackage: info: source distribution unstable
@@ -1872,7 +1908,7 @@
 Configuration successful! Now type 'make'.
 make[1]: Leaving directory '/build/reproducible-path/tuxfootball-0.3.1'
    dh_auto_build
-	make -j42
+	make -j20
 make[1]: Entering directory '/build/reproducible-path/tuxfootball-0.3.1'
 make  all-recursive
 make[2]: Entering directory '/build/reproducible-path/tuxfootball-0.3.1'
@@ -1929,7 +1965,7 @@
 g++ -DLOCALEDIR=\"/usr/share/games/locale\" -DHAVE_CONFIG_H -I. -I.. -DPACKAGE_LOCALE_DIR=\""/usr/share//locale"\" -DPACKAGE_SRC_DIR=\""."\" -DPACKAGE_DATA_DIR=\""/usr/share/games"\"  -Wall -g -Wdate-time -D_FORTIFY_SOURCE=2 -I/usr/include/SDL -D_GNU_SOURCE=1 -D_REENTRANT  -g -O2 -ffile-prefix-map=/build/reproducible-path/tuxfootball-0.3.1=. -fstack-protector-strong -fstack-clash-protection -Wformat -Werror=format-security -fcf-protection -c -o tuxfootball-team.o `test -f 'team.cpp' || echo './'`team.cpp
 g++ -DLOCALEDIR=\"/usr/share/games/locale\" -DHAVE_CONFIG_H -I. -I.. -DPACKAGE_LOCALE_DIR=\""/usr/share//locale"\" -DPACKAGE_SRC_DIR=\""."\" -DPACKAGE_DATA_DIR=\""/usr/share/games"\"  -Wall -g -Wdate-time -D_FORTIFY_SOURCE=2 -I/usr/include/SDL -D_GNU_SOURCE=1 -D_REENTRANT  -g -O2 -ffile-prefix-map=/build/reproducible-path/tuxfootball-0.3.1=. -fstack-protector-strong -fstack-clash-protection -Wformat -Werror=format-security -fcf-protection -c -o tuxfootball-tilemap.o `test -f 'tilemap.cpp' || echo './'`tilemap.cpp
 gcc -DLOCALEDIR=\"/usr/share/games/locale\" -DHAVE_CONFIG_H -I. -I.. -DPACKAGE_LOCALE_DIR=\""/usr/share//locale"\" -DPACKAGE_SRC_DIR=\""."\" -DPACKAGE_DATA_DIR=\""/usr/share/games"\"  -Wall -g -Wdate-time -D_FORTIFY_SOURCE=2 -I/usr/include/SDL -D_GNU_SOURCE=1 -D_REENTRANT  -g -O2 -Werror=implicit-function-declaration -ffile-prefix-map=/build/reproducible-path/tuxfootball-0.3.1=. -fstack-protector-strong -fstack-clash-protection -Wformat -Werror=format-security -fcf-protection -c -o tuxfootball-SFont.o `test -f 'SFont.c' || echo './'`SFont.c
-/bin/bash ../libtool  --tag=CXX   --mode=link g++ -I/usr/include/SDL -D_GNU_SOURCE=1 -D_REENTRANT  -g -O2 -ffile-prefix-map=/build/reproducible-path/tuxfootball-0.3.1=. -fstack-protector-strong -fstack-clash-protection -Wformat -Werror=format-security -fcf-protection -lSDL   -Wl,-z,relro -o tuxfootball tuxfootball-extratimefirsthalfstate.o tuxfootball-extratimehalftimestate.o tuxfootball-extratimesecondhalfstate.o tuxfootball-extratimestate.o tuxfootball-firsthalfstate.o tuxfootball-fulltimestate.o tuxfootball-halftimestate.o tuxfootball-ingamestatebase.o tuxfootball-mainmenustate.o tuxfootball-matchabortedstate.o tuxfootball-matchfinishedstate.o tuxfootball-matchstartstate.o tuxfootball-menustatebase.o tuxfootball-nationalanthemstate.o tuxfootball-penaltyshootoutstate.o tuxfootball-redefinekeysstate.o tuxfootball-secondhalfstate.o tuxfootball-videomenustate.o tuxfootball-statebase.o tuxfootball-logger.o tuxfootball-menubutton.o tuxfootball-menuitem.o tuxfootball-menukeyselect.o tuxfootball-menulabel.o tuxfootball-menuoptionlist.o tuxfootball-mainmenu.o tuxfootball-menu.o tuxfootball-redefinekeysmenu.o tuxfootball-videosettingsmenu.o tuxfootball-fontmanager.o tuxfootball-soundmanager.o tuxfootball-surfacemanager.o tuxfootball-resourcemanager.o tuxfootball-ball.o tuxfootball-body.o tuxfootball-camera.o tuxfootball-controller.o tuxfootball-gameengine.o tuxfootball-graphics.o tuxfootball-main.o tuxfootball-matrix.o tuxfootball-pitch.o tuxfootball-player.o tuxfootball-point3d.o tuxfootball-rect.o tuxfootball-segment.o tuxfootball-spriteobject.o tuxfootball-spritesequence.o tuxfootball-team.o tuxfootball-tilemap.o tuxfootball-SFont.o  -lSDL_image -lSDL_mixer
+/bin/sh ../libtool  --tag=CXX   --mode=link g++ -I/usr/include/SDL -D_GNU_SOURCE=1 -D_REENTRANT  -g -O2 -ffile-prefix-map=/build/reproducible-path/tuxfootball-0.3.1=. -fstack-protector-strong -fstack-clash-protection -Wformat -Werror=format-security -fcf-protection -lSDL   -Wl,-z,relro -o tuxfootball tuxfootball-extratimefirsthalfstate.o tuxfootball-extratimehalftimestate.o tuxfootball-extratimesecondhalfstate.o tuxfootball-extratimestate.o tuxfootball-firsthalfstate.o tuxfootball-fulltimestate.o tuxfootball-halftimestate.o tuxfootball-ingamestatebase.o tuxfootball-mainmenustate.o tuxfootball-matchabortedstate.o tuxfootball-matchfinishedstate.o tuxfootball-matchstartstate.o tuxfootball-menustatebase.o tuxfootball-nationalanthemstate.o tuxfootball-penaltyshootoutstate.o tuxfootball-redefinekeysstate.o tuxfootball-secondhalfstate.o tuxfootball-videomenustate.o tuxfootball-statebase.o tuxfootball-logger.o tuxfootball-menubutton.o tuxfootball-menuitem.o tuxfootball-menukeyselect.o tuxfootball-menulabel.o tuxfootball-menuoptionlist.o tuxfootball-mainmenu.o tuxfootball-menu.o tuxfootball-redefinekeysmenu.o tuxfootball-videosettingsmenu.o tuxfootball-fontmanager.o tuxfootball-soundmanager.o tuxfootball-surfacemanager.o tuxfootball-resourcemanager.o tuxfootball-ball.o tuxfootball-body.o tuxfootball-camera.o tuxfootball-controller.o tuxfootball-gameengine.o tuxfootball-graphics.o tuxfootball-main.o tuxfootball-matrix.o tuxfootball-pitch.o tuxfootball-player.o tuxfootball-point3d.o tuxfootball-rect.o tuxfootball-segment.o tuxfootball-spriteobject.o tuxfootball-spritesequence.o tuxfootball-team.o tuxfootball-tilemap.o tuxfootball-SFont.o  -lSDL_image -lSDL_mixer
 libtool: link: g++ -I/usr/include/SDL -D_GNU_SOURCE=1 -D_REENTRANT -g -O2 -ffile-prefix-map=/build/reproducible-path/tuxfootball-0.3.1=. -fstack-protector-strong -fstack-clash-protection -Wformat -Werror=format-security -fcf-protection -Wl,-z -Wl,relro -o tuxfootball tuxfootball-extratimefirsthalfstate.o tuxfootball-extratimehalftimestate.o tuxfootball-extratimesecondhalfstate.o tuxfootball-extratimestate.o tuxfootball-firsthalfstate.o tuxfootball-fulltimestate.o tuxfootball-halftimestate.o tuxfootball-ingamestatebase.o tuxfootball-mainmenustate.o tuxfootball-matchabortedstate.o tuxfootball-matchfinishedstate.o tuxfootball-matchstartstate.o tuxfootball-menustatebase.o tuxfootball-nationalanthemstate.o tuxfootball-penaltyshootoutstate.o tuxfootball-redefinekeysstate.o tuxfootball-secondhalfstate.o tuxfootball-videomenustate.o tuxfootball-statebase.o tuxfootball-logger.o tuxfootball-menubutton.o tuxfootball-menuitem.o tuxfootball-menukeyselect.o tuxfootball-menulabel.o tuxfootball-menuoptionlist.o tuxfootball-mainmenu.o tuxfootball-menu.o tuxfootball-redefinekeysmenu.o tuxfootball-videosettingsmenu.o tuxfootball-fontmanager.o tuxfootball-soundmanager.o tuxfootball-surfacemanager.o tuxfootball-resourcemanager.o tuxfootball-ball.o tuxfootball-body.o tuxfootball-camera.o tuxfootball-controller.o tuxfootball-gameengine.o tuxfootball-graphics.o tuxfootball-main.o tuxfootball-matrix.o tuxfootball-pitch.o tuxfootball-player.o tuxfootball-point3d.o tuxfootball-rect.o tuxfootball-segment.o tuxfootball-spriteobject.o tuxfootball-spritesequence.o tuxfootball-team.o tuxfootball-tilemap.o tuxfootball-SFont.o  -lSDL -lSDL_image -lSDL_mixer
 make[3]: Leaving directory '/build/reproducible-path/tuxfootball-0.3.1/src'
 Making all in po
@@ -1968,7 +2004,7 @@
 make[2]: Leaving directory '/build/reproducible-path/tuxfootball-0.3.1'
 make[1]: Leaving directory '/build/reproducible-path/tuxfootball-0.3.1'
    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/tuxfootball-0.3.1'
 Making check in src
 make[2]: Entering directory '/build/reproducible-path/tuxfootball-0.3.1/src'
@@ -2021,7 +2057,7 @@
 make[3]: Entering directory '/build/reproducible-path/tuxfootball-0.3.1/src'
 make[4]: Entering directory '/build/reproducible-path/tuxfootball-0.3.1/src'
  /usr/bin/mkdir -p '/build/reproducible-path/tuxfootball-0.3.1/debian/tuxfootball/usr/games'
-  /bin/bash ../libtool   --mode=install /usr/bin/install -c tuxfootball '/build/reproducible-path/tuxfootball-0.3.1/debian/tuxfootball/usr/games'
+  /bin/sh ../libtool   --mode=install /usr/bin/install -c tuxfootball '/build/reproducible-path/tuxfootball-0.3.1/debian/tuxfootball/usr/games'
 libtool: install: /usr/bin/install -c tuxfootball /build/reproducible-path/tuxfootball-0.3.1/debian/tuxfootball/usr/games/tuxfootball
 make[4]: Nothing to be done for 'install-data-am'.
 make[4]: Leaving directory '/build/reproducible-path/tuxfootball-0.3.1/src'
@@ -2467,12 +2503,14 @@
 dpkg-buildpackage: info: binary-only upload (no source included)
 dpkg-genchanges: info: not including original source code in upload
 I: copying local configuration
+I: user script /srv/workspace/pbuilder/2664146/tmp/hooks/B01_cleanup starting
+I: user script /srv/workspace/pbuilder/2664146/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/515518 and its subdirectories
-I: Current time: Sat Mar 21 07:52:49 -12 2026
-I: pbuilder-time-stamp: 1774122769
+I: removing directory /srv/workspace/pbuilder/2664146 and its subdirectories
+I: Current time: Mon Feb 17 03:35:27 +14 2025
+I: pbuilder-time-stamp: 1739712927