Diff of the two buildlogs:

--
--- b1/build.log	2025-02-21 08:36:47.487066248 +0000
+++ b2/build.log	2025-02-21 08:38:17.275002258 +0000
@@ -1,6 +1,6 @@
 I: pbuilder: network access will be disabled during build
-I: Current time: Thu Feb 20 20:34:51 -12 2025
-I: pbuilder-time-stamp: 1740126891
+I: Current time: Fri Mar 27 04:59:48 +14 2026
+I: pbuilder-time-stamp: 1774537188
 I: Building the build Environment
 I: extracting base tarball [/var/cache/pbuilder/trixie-reproducible-base.tgz]
 I: copying local configuration
@@ -23,54 +23,86 @@
 dpkg-source: info: unpacking json-simple_2.3.0-2.debian.tar.xz
 I: Not using root during the build.
 I: Installing the build-deps
-I: user script /srv/workspace/pbuilder/58294/tmp/hooks/D02_print_environment starting
+I: user script /srv/workspace/pbuilder/81371/tmp/hooks/D01_modify_environment starting
+debug: Running on ionos16-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 Mar 26 14:59 /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/81371/tmp/hooks/D01_modify_environment finished
+I: user script /srv/workspace/pbuilder/81371/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=11 '
-  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=21 '
+  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='041d38fcb1c44520aab8606e5b570044'
-  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='58294'
-  PS1='# '
-  PS2='> '
+  INVOCATION_ID=aee69b2d06544fd6b92aaad939ec4c0b
+  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=81371
   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.kBv0eDVV/pbuilderrc_YvLI --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.kBv0eDVV/b1 --logfile b1/build.log json-simple_2.3.0-2.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://46.16.76.132:3128'
+  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.kBv0eDVV/pbuilderrc_ugwI --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.kBv0eDVV/b2 --logfile b2/build.log json-simple_2.3.0-2.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://213.165.73.152:3128
 I: uname -a
-  Linux ionos12-i386 6.1.0-31-amd64 #1 SMP PREEMPT_DYNAMIC Debian 6.1.128-1 (2025-02-07) 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 14:40 /bin -> usr/bin
-I: user script /srv/workspace/pbuilder/58294/tmp/hooks/D02_print_environment finished
+  lrwxrwxrwx 1 root root 7 Nov 22  2024 /bin -> usr/bin
+I: user script /srv/workspace/pbuilder/81371/tmp/hooks/D02_print_environment finished
  -> Attempting to satisfy build-dependencies
  -> Creating pbuilder-satisfydepends-dummy package
 Package: pbuilder-satisfydepends-dummy
@@ -298,7 +330,7 @@
 Get: 178 http://deb.debian.org/debian trixie/main i386 maven all 3.9.9-1 [19.7 kB]
 Get: 179 http://deb.debian.org/debian trixie/main i386 maven-repo-helper all 1.11 [142 kB]
 Get: 180 http://deb.debian.org/debian trixie/main i386 maven-debian-helper all 2.6.7 [108 kB]
-Fetched 211 MB in 3s (64.4 MB/s)
+Fetched 211 MB in 3s (69.1 MB/s)
 Preconfiguring packages ...
 Selecting previously unselected package sgml-base.
 (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 ... 19795 files and directories currently installed.)
@@ -1228,7 +1260,11 @@
 Building tag database...
  -> Finished parsing the build-deps
 I: Building the package
-I: Running cd /build/reproducible-path/json-simple-2.3.0/ && 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  > ../json-simple_2.3.0-2_source.changes
+I: user script /srv/workspace/pbuilder/81371/tmp/hooks/A99_set_merged_usr starting
+Not re-configuring usrmerge for trixie
+I: user script /srv/workspace/pbuilder/81371/tmp/hooks/A99_set_merged_usr finished
+hostname: Name or service not known
+I: Running cd /build/reproducible-path/json-simple-2.3.0/ && 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  > ../json-simple_2.3.0-2_source.changes
 dpkg-buildpackage: info: source package json-simple
 dpkg-buildpackage: info: source version 2.3.0-2
 dpkg-buildpackage: info: source distribution unstable
@@ -1449,8 +1485,8 @@
 [INFO] ------------------------------------------------------------------------
 [INFO] BUILD SUCCESS
 [INFO] ------------------------------------------------------------------------
-[INFO] Total time:  12.860 s
-[INFO] Finished at: 2025-02-21T08:36:01Z
+[INFO] Total time:  7.367 s
+[INFO] Finished at: 2026-03-26T15:00:37Z
 [INFO] ------------------------------------------------------------------------
    dh_auto_test -O--buildsystem=maven
 	/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/json-simple-2.3.0 -Dclassworlds.conf=/etc/maven/m2-debian.conf org.codehaus.plexus.classworlds.launcher.Launcher -s/etc/maven/settings-debian.xml -Ddebian.dir=/build/reproducible-path/json-simple-2.3.0/debian -Dmaven.repo.local=/build/reproducible-path/json-simple-2.3.0/debian/maven-repo --batch-mode test
@@ -1480,22 +1516,22 @@
 [INFO] -------------------------------------------------------
 [INFO]  T E S T S
 [INFO] -------------------------------------------------------
-[INFO] Running org.json.simple.JsonArrayTest
-[INFO] Tests run: 7, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.07 s - in org.json.simple.JsonArrayTest
+[INFO] Running org.json.simple.JsonObjectTest
+[INFO] Tests run: 11, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.046 s - in org.json.simple.JsonObjectTest
+[INFO] Running org.json.simple.JSONValueTest
+[INFO] Tests run: 11, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0 s - in org.json.simple.JSONValueTest
 [INFO] Running org.json.simple.YylexTest
-[INFO] Tests run: 8, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.001 s - in org.json.simple.YylexTest
-[INFO] Running org.json.simple.JSONArrayTest
-[INFO] Tests run: 13, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.001 s - in org.json.simple.JSONArrayTest
+[INFO] Tests run: 8, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0 s - in org.json.simple.YylexTest
 [INFO] Running org.json.simple.JsonerTest
-[INFO] Tests run: 17, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.015 s - in org.json.simple.JsonerTest
-[INFO] Running org.json.simple.JsonObjectTest
-[INFO] Tests run: 11, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.004 s - in org.json.simple.JsonObjectTest
+[INFO] Tests run: 17, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.009 s - in org.json.simple.JsonerTest
 [INFO] Running org.json.simple.parser.JSONParserTest
-[INFO] Tests run: 5, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.002 s - in org.json.simple.parser.JSONParserTest
+[INFO] Tests run: 5, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.004 s - in org.json.simple.parser.JSONParserTest
 [INFO] Running org.json.simple.parser.YylexTest
-[INFO] Tests run: 1, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.001 s - in org.json.simple.parser.YylexTest
-[INFO] Running org.json.simple.JSONValueTest
-[INFO] Tests run: 11, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.006 s - in org.json.simple.JSONValueTest
+[INFO] Tests run: 1, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0 s - in org.json.simple.parser.YylexTest
+[INFO] Running org.json.simple.JSONArrayTest
+[INFO] Tests run: 13, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.005 s - in org.json.simple.JSONArrayTest
+[INFO] Running org.json.simple.JsonArrayTest
+[INFO] Tests run: 7, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.002 s - in org.json.simple.JsonArrayTest
 [INFO] 
 [INFO] Results:
 [INFO] 
@@ -1504,8 +1540,8 @@
 [INFO] ------------------------------------------------------------------------
 [INFO] BUILD SUCCESS
 [INFO] ------------------------------------------------------------------------
-[INFO] Total time:  32.259 s
-[INFO] Finished at: 2025-02-21T08:36:35Z
+[INFO] Total time:  31.446 s
+[INFO] Finished at: 2026-03-26T15:01:09Z
 [INFO] ------------------------------------------------------------------------
    create-stamp debian/debhelper-build-stamp
    dh_testroot -O--buildsystem=maven
@@ -1531,8 +1567,8 @@
 [INFO] ------------------------------------------------------------------------
 [INFO] BUILD SUCCESS
 [INFO] ------------------------------------------------------------------------
-[INFO] Total time:  0.712 s
-[INFO] Finished at: 2025-02-21T08:36:38Z
+[INFO] Total time:  0.445 s
+[INFO] Finished at: 2026-03-26T15:01:11Z
 [INFO] ------------------------------------------------------------------------
 	mh_resolve_dependencies --non-interactive --offline --build -plibjson-simple-java --javadoc --base-directory=/build/reproducible-path/json-simple-2.3.0 --non-explore
 Analysing pom.xml...
@@ -1552,9 +1588,9 @@
    dh_missing -O--buildsystem=maven
    dh_installdeb -O--buildsystem=maven
    dh_gencontrol -O--buildsystem=maven
+dpkg-gencontrol: warning: Depends field of package libjson-simple-java: substitution variable ${java:Depends} used, but is not defined
 dpkg-gencontrol: warning: package libjson-simple-doc: substitution variable ${maven:CompileDepends} unused, but is defined
 dpkg-gencontrol: warning: package libjson-simple-doc: substitution variable ${maven:DocDepends} unused, but is defined
-dpkg-gencontrol: warning: Depends field of package libjson-simple-java: substitution variable ${java:Depends} used, but is not defined
 dpkg-gencontrol: warning: package libjson-simple-java: substitution variable ${maven:CompileDepends} unused, but is defined
 dpkg-gencontrol: warning: package libjson-simple-java: substitution variable ${maven:DocDepends} unused, but is defined
    dh_md5sums -O--buildsystem=maven
@@ -1568,12 +1604,14 @@
 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/81371/tmp/hooks/B01_cleanup starting
+I: user script /srv/workspace/pbuilder/81371/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/58294 and its subdirectories
-I: Current time: Thu Feb 20 20:36:46 -12 2025
-I: pbuilder-time-stamp: 1740127006
+I: removing directory /srv/workspace/pbuilder/81371 and its subdirectories
+I: Current time: Fri Mar 27 05:01:16 +14 2026
+I: pbuilder-time-stamp: 1774537276