Diff of the two buildlogs:

--
--- b1/build.log	2025-03-28 18:01:12.644024708 +0000
+++ b2/build.log	2025-03-28 18:03:18.890337614 +0000
@@ -1,6 +1,6 @@
 I: pbuilder: network access will be disabled during build
-I: Current time: Thu Apr 30 12:20:48 -12 2026
-I: pbuilder-time-stamp: 1777594848
+I: Current time: Sat Mar 29 08:01:17 +14 2025
+I: pbuilder-time-stamp: 1743184877
 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 xmlstreambuffer-1.5-support.diff
 I: using fakeroot in build.
 I: Installing the build-deps
-I: user script /srv/workspace/pbuilder/2103821/tmp/hooks/D02_print_environment starting
+I: user script /srv/workspace/pbuilder/3696988/tmp/hooks/D01_modify_environment starting
+debug: Running on codethink04-arm64.
+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 28 18:01 /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/3696988/tmp/hooks/D01_modify_environment finished
+I: user script /srv/workspace/pbuilder/3696988/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='arm64'
-  DEBIAN_FRONTEND='noninteractive'
+  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]="aarch64-unknown-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=arm64
+  DEBIAN_FRONTEND=noninteractive
   DEB_BUILD_OPTIONS='buildinfo=+all reproducible=+all parallel=12 '
-  DISTRIBUTION='trixie'
-  HOME='/root'
-  HOST_ARCH='arm64'
+  DIRSTACK=()
+  DISTRIBUTION=trixie
+  EUID=0
+  FUNCNAME=([0]="Echo" [1]="main")
+  GROUPS=()
+  HOME=/root
+  HOSTNAME=i-capture-the-hostname
+  HOSTTYPE=aarch64
+  HOST_ARCH=arm64
   IFS=' 	
   '
-  INVOCATION_ID='f27ae8db34d143feb3903a9ca86c82a3'
-  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='2103821'
-  PS1='# '
-  PS2='> '
+  INVOCATION_ID=a6aaf03dd8ba472ba16ec29782d38fb7
+  LANG=C
+  LANGUAGE=nl_BE:nl
+  LC_ALL=C
+  MACHTYPE=aarch64-unknown-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=3696988
   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.qaNzVyBF/pbuilderrc_HcwD --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.qaNzVyBF/b1 --logfile b1/build.log fastinfoset_1.2.12-4.dsc'
-  SUDO_GID='109'
-  SUDO_UID='104'
-  SUDO_USER='jenkins'
-  TERM='unknown'
-  TZ='/usr/share/zoneinfo/Etc/GMT+12'
-  USER='root'
-  _='/usr/bin/systemd-run'
-  http_proxy='http://192.168.101.4:3128'
+  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.qaNzVyBF/pbuilderrc_tz8h --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.qaNzVyBF/b2 --logfile b2/build.log fastinfoset_1.2.12-4.dsc'
+  SUDO_GID=109
+  SUDO_UID=104
+  SUDO_USER=jenkins
+  TERM=unknown
+  TZ=/usr/share/zoneinfo/Etc/GMT-14
+  UID=0
+  USER=root
+  _='I: set'
+  http_proxy=http://192.168.101.4:3128
 I: uname -a
-  Linux codethink03-arm64 6.1.0-32-cloud-arm64 #1 SMP Debian 6.1.129-1 (2025-03-06) aarch64 GNU/Linux
+  Linux i-capture-the-hostname 6.1.0-32-cloud-arm64 #1 SMP Debian 6.1.129-1 (2025-03-06) aarch64 GNU/Linux
 I: ls -l /bin
-  lrwxrwxrwx 1 root root 7 Mar  4  2025 /bin -> usr/bin
-I: user script /srv/workspace/pbuilder/2103821/tmp/hooks/D02_print_environment finished
+  lrwxrwxrwx 1 root root 7 Mar  4 11:20 /bin -> usr/bin
+I: user script /srv/workspace/pbuilder/3696988/tmp/hooks/D02_print_environment finished
  -> Attempting to satisfy build-dependencies
  -> Creating pbuilder-satisfydepends-dummy package
 Package: pbuilder-satisfydepends-dummy
@@ -481,7 +513,7 @@
 Get: 362 http://deb.debian.org/debian trixie/main arm64 maven-repo-helper all 1.11 [142 kB]
 Get: 363 http://deb.debian.org/debian trixie/main arm64 unzip arm64 6.0-29 [163 kB]
 Get: 364 http://deb.debian.org/debian trixie/main arm64 maven-debian-helper all 2.6.7 [108 kB]
-Fetched 266 MB in 2s (157 MB/s)
+Fetched 266 MB in 1s (214 MB/s)
 Preconfiguring packages ...
 Selecting previously unselected package libsystemd-shared:arm64.
 (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 ... 19920 files and directories currently installed.)
@@ -1678,8 +1710,8 @@
 Setting up tzdata (2025b-1) ...
 
 Current default time zone: 'Etc/UTC'
-Local time is now:      Fri May  1 00:22:03 UTC 2026.
-Universal Time is now:  Fri May  1 00:22:03 UTC 2026.
+Local time is now:      Fri Mar 28 18:01:59 UTC 2025.
+Universal Time is now:  Fri Mar 28 18:01:59 UTC 2025.
 Run 'dpkg-reconfigure tzdata' if you wish to change it.
 
 Setting up libxcb-present0:arm64 (1.17.0-2+b1) ...
@@ -2196,7 +2228,11 @@
 fakeroot is already the newest version (1.37.1.1-1).
 0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
 I: Building the package
-I: Running cd /build/reproducible-path/fastinfoset-1.2.12/ && 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  > ../fastinfoset_1.2.12-4_source.changes
+I: user script /srv/workspace/pbuilder/3696988/tmp/hooks/A99_set_merged_usr starting
+Not re-configuring usrmerge for trixie
+I: user script /srv/workspace/pbuilder/3696988/tmp/hooks/A99_set_merged_usr finished
+hostname: Name or service not known
+I: Running cd /build/reproducible-path/fastinfoset-1.2.12/ && 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  > ../fastinfoset_1.2.12-4_source.changes
 dpkg-buildpackage: info: source package fastinfoset
 dpkg-buildpackage: info: source version 1.2.12-4
 dpkg-buildpackage: info: source distribution unstable
@@ -2213,7 +2249,7 @@
 rm -f fastinfoset/new-UBL-example-refvocab.finf fastinfoset/new-UBL-example.finf
 make[1]: Leaving directory '/build/reproducible-path/fastinfoset-1.2.12'
    jh_clean
-Duplicate specification "u=s" for option "u"
+Duplicate specification "unlink|u" for option "u"
    dh_clean
  debian/rules binary
 dh binary --with javahelper
@@ -2340,14 +2376,14 @@
 [INFO] ------------------------------------------------------------------------
 [INFO] Reactor Summary for fastinfoset-project 1.2.12:
 [INFO] 
-[INFO] fastinfoset-project ................................ SUCCESS [  0.011 s]
-[INFO] fastinfoset ........................................ SUCCESS [  7.626 s]
-[INFO] fastinfoset-utilities .............................. SUCCESS [  1.116 s]
+[INFO] fastinfoset-project ................................ SUCCESS [  0.002 s]
+[INFO] fastinfoset ........................................ SUCCESS [  3.816 s]
+[INFO] fastinfoset-utilities .............................. SUCCESS [  0.498 s]
 [INFO] ------------------------------------------------------------------------
 [INFO] BUILD SUCCESS
 [INFO] ------------------------------------------------------------------------
-[INFO] Total time:  9.045 s
-[INFO] Finished at: 2026-04-30T12:23:17-12:00
+[INFO] Total time:  4.454 s
+[INFO] Finished at: 2025-03-29T08:02:34+14:00
 [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/fastinfoset-1.2.12 -Dclassworlds.conf=/etc/maven/m2-debian.conf -Dproperties.file.manual=/build/reproducible-path/fastinfoset-1.2.12/debian/maven.properties org.codehaus.plexus.classworlds.launcher.Launcher -s/etc/maven/settings-debian.xml -Ddebian.dir=/build/reproducible-path/fastinfoset-1.2.12/debian -Dmaven.repo.local=/build/reproducible-path/fastinfoset-1.2.12/debian/maven-repo --batch-mode test
@@ -2389,13 +2425,13 @@
 [INFO]  T E S T S
 [INFO] -------------------------------------------------------
 [INFO] Running alphabet.AlphabetTest
-[INFO] Tests run: 11, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.091 s - in alphabet.AlphabetTest
+[INFO] Tests run: 11, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.045 s - in alphabet.AlphabetTest
 [INFO] Running sax.FeaturesTest
-[INFO] Tests run: 4, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.007 s - in sax.FeaturesTest
+[INFO] Tests run: 4, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0 s - in sax.FeaturesTest
 [INFO] Running encoding.DecodingTest
-[INFO] Tests run: 4, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.055 s - in encoding.DecodingTest
+[INFO] Tests run: 4, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.002 s - in encoding.DecodingTest
 [INFO] Running encoding.NamespacesScopeTest
-[INFO] Tests run: 8, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.016 s - in encoding.NamespacesScopeTest
+[INFO] Tests run: 8, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.005 s - in encoding.NamespacesScopeTest
 [INFO] Running encoding.EncodingTest
 684
 684
@@ -2403,29 +2439,29 @@
 684
 1322
 1322
-[INFO] Tests run: 4, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.051 s - in encoding.EncodingTest
+[INFO] Tests run: 4, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.013 s - in encoding.EncodingTest
 [INFO] Running encoding.DuplicateAttributesTest
-[INFO] Tests run: 4, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.038 s - in encoding.DuplicateAttributesTest
+[INFO] Tests run: 4, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.007 s - in encoding.DuplicateAttributesTest
 [INFO] Running stax.StringTest
-[INFO] Tests run: 2, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.073 s - in stax.StringTest
+[INFO] Tests run: 2, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.04 s - in stax.StringTest
 [INFO] Running stax.EncodingTest
 [INFO] Tests run: 3, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0 s - in stax.EncodingTest
 [INFO] Running stax.OctetEncodingTest
-[INFO] Tests run: 2, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.032 s - in stax.OctetEncodingTest
+[INFO] Tests run: 2, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.01 s - in stax.OctetEncodingTest
 [INFO] Running stax.NamespaceTest
-[INFO] Tests run: 1, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.021 s - in stax.NamespaceTest
+[INFO] Tests run: 1, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0 s - in stax.NamespaceTest
 [INFO] Running ignore.IgnoreTest
-[INFO] Tests run: 6, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.06 s - in ignore.IgnoreTest
+[INFO] Tests run: 6, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.001 s - in ignore.IgnoreTest
 [INFO] Running namespace.ContextTest
-[INFO] Tests run: 7, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.07 s - in namespace.ContextTest
+[INFO] Tests run: 7, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.059 s - in namespace.ContextTest
 [INFO] Running resourcebundle.ResourceBundleTest
-[INFO] Tests run: 1, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.001 s - in resourcebundle.ResourceBundleTest
+[INFO] Tests run: 1, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0 s - in resourcebundle.ResourceBundleTest
 [INFO] Running algorithm.AlgorithmTest
-[INFO] Tests run: 33, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.068 s - in algorithm.AlgorithmTest
+[INFO] Tests run: 33, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.037 s - in algorithm.AlgorithmTest
 [INFO] Running dom.NormalizedTextNodeTest
-[INFO] Tests run: 1, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0 s - in dom.NormalizedTextNodeTest
+[INFO] Tests run: 1, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.001 s - in dom.NormalizedTextNodeTest
 [INFO] Running dom.NamespaceTest
-[INFO] Tests run: 3, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.004 s - in dom.NamespaceTest
+[INFO] Tests run: 3, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.002 s - in dom.NamespaceTest
 [INFO] 
 [INFO] Results:
 [INFO] 
@@ -2455,14 +2491,14 @@
 [INFO] ------------------------------------------------------------------------
 [INFO] Reactor Summary for fastinfoset-project 1.2.12:
 [INFO] 
-[INFO] fastinfoset-project ................................ SUCCESS [  0.005 s]
-[INFO] fastinfoset ........................................ SUCCESS [ 33.477 s]
-[INFO] fastinfoset-utilities .............................. SUCCESS [  0.106 s]
+[INFO] fastinfoset-project ................................ SUCCESS [  0.003 s]
+[INFO] fastinfoset ........................................ SUCCESS [ 31.993 s]
+[INFO] fastinfoset-utilities .............................. SUCCESS [  0.156 s]
 [INFO] ------------------------------------------------------------------------
 [INFO] BUILD SUCCESS
 [INFO] ------------------------------------------------------------------------
-[INFO] Total time:  33.843 s
-[INFO] Finished at: 2026-04-30T12:23:55-12:00
+[INFO] Total time:  32.293 s
+[INFO] Finished at: 2025-03-29T08:03:08+14:00
 [INFO] ------------------------------------------------------------------------
    create-stamp debian/debhelper-build-stamp
    dh_prep
@@ -2518,14 +2554,14 @@
 [INFO] ------------------------------------------------------------------------
 [INFO] Reactor Summary for fastinfoset-project 1.2.12:
 [INFO] 
-[INFO] fastinfoset-project ................................ SUCCESS [  0.652 s]
-[INFO] fastinfoset ........................................ SUCCESS [  0.182 s]
-[INFO] fastinfoset-utilities .............................. SUCCESS [  0.055 s]
+[INFO] fastinfoset-project ................................ SUCCESS [  0.390 s]
+[INFO] fastinfoset ........................................ SUCCESS [  0.045 s]
+[INFO] fastinfoset-utilities .............................. SUCCESS [  0.044 s]
 [INFO] ------------------------------------------------------------------------
 [INFO] BUILD SUCCESS
 [INFO] ------------------------------------------------------------------------
-[INFO] Total time:  1.151 s
-[INFO] Finished at: 2026-04-30T12:23:59-12:00
+[INFO] Total time:  0.707 s
+[INFO] Finished at: 2025-03-29T08:03:10+14:00
 [INFO] ------------------------------------------------------------------------
 	mh_resolve_dependencies --non-interactive --offline --build -plibfastinfoset-java --base-directory=/build/reproducible-path/fastinfoset-1.2.12 --non-explore
 Analysing pom.xml...
@@ -2541,7 +2577,7 @@
    dh_link
    jh_installlibs
    jh_classpath
-Duplicate specification "version|V" for option "V"
+Duplicate specification "V:s" for option "V"
    jh_manifest
    jh_depends
    dh_strip_nondeterminism
@@ -2562,12 +2598,14 @@
 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/3696988/tmp/hooks/B01_cleanup starting
+I: user script /srv/workspace/pbuilder/3696988/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/2103821 and its subdirectories
-I: Current time: Thu Apr 30 12:24:11 -12 2026
-I: pbuilder-time-stamp: 1777595051
+I: removing directory /srv/workspace/pbuilder/3696988 and its subdirectories
+I: Current time: Sat Mar 29 08:03:17 +14 2025
+I: pbuilder-time-stamp: 1743184997