Diff of the two buildlogs:

--
--- b1/build.log	2025-01-25 11:53:58.462326607 +0000
+++ b2/build.log	2025-01-25 11:57:21.881123990 +0000
@@ -1,6 +1,6 @@
 I: pbuilder: network access will be disabled during build
-I: Current time: Fri Jan 24 23:47:40 -12 2025
-I: pbuilder-time-stamp: 1737805660
+I: Current time: Sun Jan 26 01:54:10 +14 2025
+I: pbuilder-time-stamp: 1737806050
 I: Building the build Environment
 I: extracting base tarball [/var/cache/pbuilder/trixie-reproducible-base.tgz]
 I: copying local configuration
@@ -24,52 +24,84 @@
 dpkg-source: info: applying fix_packaging.patch
 I: using fakeroot in build.
 I: Installing the build-deps
-I: user script /srv/workspace/pbuilder/7989/tmp/hooks/D02_print_environment starting
+I: user script /srv/workspace/pbuilder/22189/tmp/hooks/D01_modify_environment starting
+debug: Running on virt64z.
+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 Jan 25 11:54 /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/22189/tmp/hooks/D01_modify_environment finished
+I: user script /srv/workspace/pbuilder/22189/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='armhf'
-  DEBIAN_FRONTEND='noninteractive'
-  DEB_BUILD_OPTIONS='buildinfo=+all reproducible=+all parallel=3 '
-  DISTRIBUTION='trixie'
-  HOME='/root'
-  HOST_ARCH='armhf'
+  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]="arm-unknown-linux-gnueabihf")
+  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=armhf
+  DEBIAN_FRONTEND=noninteractive
+  DEB_BUILD_OPTIONS='buildinfo=+all reproducible=+all parallel=4 '
+  DIRSTACK=()
+  DISTRIBUTION=trixie
+  EUID=0
+  FUNCNAME=([0]="Echo" [1]="main")
+  GROUPS=()
+  HOME=/root
+  HOSTNAME=i-capture-the-hostname
+  HOSTTYPE=arm
+  HOST_ARCH=armhf
   IFS=' 	
   '
-  INVOCATION_ID='c924c00294534ed790615fbf811b95da'
-  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='7989'
-  PS1='# '
-  PS2='> '
+  INVOCATION_ID=f0517d6f14144d0c9630b9b2b8e7bd9a
+  LANG=C
+  LANGUAGE=it_CH:it
+  LC_ALL=C
+  MACHTYPE=arm-unknown-linux-gnueabihf
+  MAIL=/var/mail/root
+  OPTERR=1
+  OPTIND=1
+  OSTYPE=linux-gnueabihf
+  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=22189
   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.hFNNG4Bq/pbuilderrc_M2qt --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.hFNNG4Bq/b1 --logfile b1/build.log morfologik-stemming2_2.1.6-2.dsc'
-  SUDO_GID='113'
-  SUDO_UID='107'
-  SUDO_USER='jenkins'
-  TERM='unknown'
-  TZ='/usr/share/zoneinfo/Etc/GMT+12'
-  USER='root'
-  _='/usr/bin/systemd-run'
-  http_proxy='http://10.0.0.15:3142/'
+  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.hFNNG4Bq/pbuilderrc_fnps --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.hFNNG4Bq/b2 --logfile b2/build.log morfologik-stemming2_2.1.6-2.dsc'
+  SUDO_GID=110
+  SUDO_UID=103
+  SUDO_USER=jenkins
+  TERM=unknown
+  TZ=/usr/share/zoneinfo/Etc/GMT-14
+  UID=0
+  USER=root
+  _='I: set'
+  http_proxy=http://10.0.0.15:3142/
 I: uname -a
-  Linux virt32a 6.1.0-30-armmp-lpae #1 SMP Debian 6.1.124-1 (2025-01-12) armv7l GNU/Linux
+  Linux i-capture-the-hostname 6.1.0-30-arm64 #1 SMP Debian 6.1.124-1 (2025-01-12) aarch64 GNU/Linux
 I: ls -l /bin
   lrwxrwxrwx 1 root root 7 Nov 22 14:40 /bin -> usr/bin
-I: user script /srv/workspace/pbuilder/7989/tmp/hooks/D02_print_environment finished
+I: user script /srv/workspace/pbuilder/22189/tmp/hooks/D02_print_environment finished
  -> Attempting to satisfy build-dependencies
  -> Creating pbuilder-satisfydepends-dummy package
 Package: pbuilder-satisfydepends-dummy
@@ -439,7 +471,7 @@
 Get: 316 http://deb.debian.org/debian trixie/main armhf maven all 3.8.8-2 [19.5 kB]
 Get: 317 http://deb.debian.org/debian trixie/main armhf maven-repo-helper all 1.11 [142 kB]
 Get: 318 http://deb.debian.org/debian trixie/main armhf maven-debian-helper all 2.6.7 [108 kB]
-Fetched 282 MB in 28s (9893 kB/s)
+Fetched 282 MB in 27s (10.5 MB/s)
 Preconfiguring packages ...
 Selecting previously unselected package libapparmor1:armhf.
 (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 ... 19569 files and directories currently installed.)
@@ -1946,7 +1978,11 @@
 fakeroot is already the newest version (1.36.2-1).
 0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
 I: Building the package
-I: Running cd /build/reproducible-path/morfologik-stemming2-2.1.6/ && 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  > ../morfologik-stemming2_2.1.6-2_source.changes
+I: user script /srv/workspace/pbuilder/22189/tmp/hooks/A99_set_merged_usr starting
+Not re-configuring usrmerge for trixie
+I: user script /srv/workspace/pbuilder/22189/tmp/hooks/A99_set_merged_usr finished
+hostname: Name or service not known
+I: Running cd /build/reproducible-path/morfologik-stemming2-2.1.6/ && 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  > ../morfologik-stemming2_2.1.6-2_source.changes
 dpkg-buildpackage: info: source package morfologik-stemming2
 dpkg-buildpackage: info: source version 2.1.6-2
 dpkg-buildpackage: info: source distribution unstable
@@ -2161,18 +2197,18 @@
 [INFO] ------------------------------------------------------------------------
 [INFO] Reactor Summary for Morfologik (parent POM) 2.1.6:
 [INFO] 
-[INFO] Morfologik (parent POM) ............................ SUCCESS [  0.007 s]
-[INFO] Morfologik FSA (Traversal) ......................... SUCCESS [  7.348 s]
-[INFO] Morfologik FSA (Builder) ........................... SUCCESS [  4.045 s]
-[INFO] Morfologik Stemming APIs ........................... SUCCESS [  2.953 s]
-[INFO] Morfologik Stemming (Polish Dictionary) ............ SUCCESS [  1.014 s]
-[INFO] Morfologik Speller ................................. SUCCESS [  1.399 s]
-[INFO] Morfologik Command Line Tools ...................... SUCCESS [  5.298 s]
+[INFO] Morfologik (parent POM) ............................ SUCCESS [  0.005 s]
+[INFO] Morfologik FSA (Traversal) ......................... SUCCESS [  3.725 s]
+[INFO] Morfologik FSA (Builder) ........................... SUCCESS [  1.758 s]
+[INFO] Morfologik Stemming APIs ........................... SUCCESS [  1.632 s]
+[INFO] Morfologik Stemming (Polish Dictionary) ............ SUCCESS [  0.641 s]
+[INFO] Morfologik Speller ................................. SUCCESS [  0.562 s]
+[INFO] Morfologik Command Line Tools ...................... SUCCESS [  3.077 s]
 [INFO] ------------------------------------------------------------------------
 [INFO] BUILD SUCCESS
 [INFO] ------------------------------------------------------------------------
-[INFO] Total time:  25.972 s
-[INFO] Finished at: 2025-01-25T11:52:04Z
+[INFO] Total time:  13.691 s
+[INFO] Finished at: 2025-01-25T11:56:47Z
 [INFO] ------------------------------------------------------------------------
    dh_auto_test
 	/usr/lib/jvm/default-java/bin/java -noverify -cp /usr/share/maven/boot/plexus-classworlds-2.x.jar -Dmaven.home=/usr/share/maven -Dmaven.multiModuleProjectDirectory=/build/reproducible-path/morfologik-stemming2-2.1.6 -Dclassworlds.conf=/etc/maven/m2-debian.conf -Dproperties.file.manual=/build/reproducible-path/morfologik-stemming2-2.1.6/debian/maven.properties org.codehaus.plexus.classworlds.launcher.Launcher -s/etc/maven/settings-debian.xml -Ddebian.dir=/build/reproducible-path/morfologik-stemming2-2.1.6/debian -Dmaven.repo.local=/build/reproducible-path/morfologik-stemming2-2.1.6/debian/maven-repo --batch-mode test
@@ -2298,18 +2334,18 @@
 [INFO] ------------------------------------------------------------------------
 [INFO] Reactor Summary for Morfologik (parent POM) 2.1.6:
 [INFO] 
-[INFO] Morfologik (parent POM) ............................ SUCCESS [  0.008 s]
-[INFO] Morfologik FSA (Traversal) ......................... SUCCESS [  1.059 s]
-[INFO] Morfologik FSA (Builder) ........................... SUCCESS [  0.190 s]
-[INFO] Morfologik Stemming APIs ........................... SUCCESS [  0.110 s]
-[INFO] Morfologik Stemming (Polish Dictionary) ............ SUCCESS [  0.273 s]
-[INFO] Morfologik Speller ................................. SUCCESS [  0.111 s]
-[INFO] Morfologik Command Line Tools ...................... SUCCESS [  0.819 s]
+[INFO] Morfologik (parent POM) ............................ SUCCESS [  0.005 s]
+[INFO] Morfologik FSA (Traversal) ......................... SUCCESS [  0.552 s]
+[INFO] Morfologik FSA (Builder) ........................... SUCCESS [  0.168 s]
+[INFO] Morfologik Stemming APIs ........................... SUCCESS [  0.079 s]
+[INFO] Morfologik Stemming (Polish Dictionary) ............ SUCCESS [  0.105 s]
+[INFO] Morfologik Speller ................................. SUCCESS [  0.060 s]
+[INFO] Morfologik Command Line Tools ...................... SUCCESS [  0.353 s]
 [INFO] ------------------------------------------------------------------------
 [INFO] BUILD SUCCESS
 [INFO] ------------------------------------------------------------------------
-[INFO] Total time:  6.435 s
-[INFO] Finished at: 2025-01-25T11:52:17Z
+[INFO] Total time:  3.545 s
+[INFO] Finished at: 2025-01-25T11:56:54Z
 [INFO] ------------------------------------------------------------------------
    create-stamp debian/debhelper-build-stamp
  fakeroot debian/rules binary
@@ -2424,18 +2460,18 @@
 [INFO] ------------------------------------------------------------------------
 [INFO] Reactor Summary for Morfologik (parent POM) 2.1.6:
 [INFO] 
-[INFO] Morfologik (parent POM) ............................ SUCCESS [  1.885 s]
-[INFO] Morfologik FSA (Traversal) ......................... SUCCESS [  0.770 s]
-[INFO] Morfologik FSA (Builder) ........................... SUCCESS [  0.293 s]
-[INFO] Morfologik Stemming APIs ........................... SUCCESS [  0.202 s]
-[INFO] Morfologik Stemming (Polish Dictionary) ............ SUCCESS [  0.337 s]
-[INFO] Morfologik Speller ................................. SUCCESS [  0.592 s]
-[INFO] Morfologik Command Line Tools ...................... SUCCESS [  0.411 s]
+[INFO] Morfologik (parent POM) ............................ SUCCESS [  0.668 s]
+[INFO] Morfologik FSA (Traversal) ......................... SUCCESS [  0.379 s]
+[INFO] Morfologik FSA (Builder) ........................... SUCCESS [  0.110 s]
+[INFO] Morfologik Stemming APIs ........................... SUCCESS [  0.075 s]
+[INFO] Morfologik Stemming (Polish Dictionary) ............ SUCCESS [  0.071 s]
+[INFO] Morfologik Speller ................................. SUCCESS [  0.090 s]
+[INFO] Morfologik Command Line Tools ...................... SUCCESS [  0.175 s]
 [INFO] ------------------------------------------------------------------------
 [INFO] BUILD SUCCESS
 [INFO] ------------------------------------------------------------------------
-[INFO] Total time:  13.508 s
-[INFO] Finished at: 2025-01-25T11:52:39Z
+[INFO] Total time:  4.618 s
+[INFO] Finished at: 2025-01-25T11:57:03Z
 [INFO] ------------------------------------------------------------------------
 	mh_resolve_dependencies --non-interactive --offline --build -plibmorfologik-stemming2-java --base-directory=/build/reproducible-path/morfologik-stemming2-2.1.6 --non-explore
 Analysing pom.xml...
@@ -2473,12 +2509,14 @@
 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/22189/tmp/hooks/B01_cleanup starting
+I: user script /srv/workspace/pbuilder/22189/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/7989 and its subdirectories
-I: Current time: Fri Jan 24 23:53:54 -12 2025
-I: pbuilder-time-stamp: 1737806034
+I: removing directory /srv/workspace/pbuilder/22189 and its subdirectories
+I: Current time: Sun Jan 26 01:57:17 +14 2025
+I: pbuilder-time-stamp: 1737806237