Diff of the two buildlogs:

--
--- b1/build.log	2025-03-18 16:28:44.592037973 +0000
+++ b2/build.log	2025-03-18 16:38:43.633091227 +0000
@@ -1,6 +1,6 @@
 I: pbuilder: network access will be disabled during build
-I: Current time: Tue Mar 18 04:07:51 -12 2025
-I: pbuilder-time-stamp: 1742314071
+I: Current time: Wed Mar 19 06:28:57 +14 2025
+I: pbuilder-time-stamp: 1742315337
 I: Building the build Environment
 I: extracting base tarball [/var/cache/pbuilder/trixie-reproducible-base.tgz]
 I: copying local configuration
@@ -26,52 +26,84 @@
 dpkg-source: info: applying icu4j-compatibility.patch
 I: Not using root during the build.
 I: Installing the build-deps
-I: user script /srv/workspace/pbuilder/31722/tmp/hooks/D02_print_environment starting
+I: user script /srv/workspace/pbuilder/12089/tmp/hooks/D01_modify_environment starting
+debug: Running on virt32b.
+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 18 16:29 /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/12089/tmp/hooks/D01_modify_environment finished
+I: user script /srv/workspace/pbuilder/12089/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=5 '
-  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='7975182aaa95424cb634dfae930dec80'
-  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='31722'
-  PS1='# '
-  PS2='> '
+  INVOCATION_ID=e83d5ba85d1e4daea5821cbc55fbb131
+  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=12089
   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.LgEgWX9o/pbuilderrc_Ybo8 --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.LgEgWX9o/b1 --logfile b1/build.log antlr4_4.9.2-3.dsc'
-  SUDO_GID='114'
-  SUDO_UID='109'
-  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.LgEgWX9o/pbuilderrc_7ebR --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.LgEgWX9o/b2 --logfile b2/build.log antlr4_4.9.2-3.dsc'
+  SUDO_GID=112
+  SUDO_UID=106
+  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 ff64a 6.1.0-32-arm64 #1 SMP Debian 6.1.129-1 (2025-03-06) aarch64 GNU/Linux
+  Linux i-capture-the-hostname 6.1.0-32-armmp-lpae #1 SMP Debian 6.1.129-1 (2025-03-06) armv7l GNU/Linux
 I: ls -l /bin
   lrwxrwxrwx 1 root root 7 Mar  4 11:20 /bin -> usr/bin
-I: user script /srv/workspace/pbuilder/31722/tmp/hooks/D02_print_environment finished
+I: user script /srv/workspace/pbuilder/12089/tmp/hooks/D02_print_environment finished
  -> Attempting to satisfy build-dependencies
  -> Creating pbuilder-satisfydepends-dummy package
 Package: pbuilder-satisfydepends-dummy
@@ -465,7 +497,7 @@
 Get: 322 http://deb.debian.org/debian trixie/main armhf maven-repo-helper all 1.11 [142 kB]
 Get: 323 http://deb.debian.org/debian trixie/main armhf maven-debian-helper all 2.6.7 [108 kB]
 Get: 324 http://deb.debian.org/debian trixie/main armhf zip armhf 3.0-14 [221 kB]
-Fetched 291 MB in 8s (37.3 MB/s)
+Fetched 291 MB in 6s (46.2 MB/s)
 Preconfiguring packages ...
 Selecting previously unselected package libsystemd-shared: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 ... 19510 files and directories currently installed.)
@@ -1993,7 +2025,11 @@
 Building tag database...
  -> Finished parsing the build-deps
 I: Building the package
-I: Running cd /build/reproducible-path/antlr4-4.9.2/ && 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  > ../antlr4_4.9.2-3_source.changes
+I: user script /srv/workspace/pbuilder/12089/tmp/hooks/A99_set_merged_usr starting
+Not re-configuring usrmerge for trixie
+I: user script /srv/workspace/pbuilder/12089/tmp/hooks/A99_set_merged_usr finished
+hostname: Name or service not known
+I: Running cd /build/reproducible-path/antlr4-4.9.2/ && 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  > ../antlr4_4.9.2-3_source.changes
 dpkg-buildpackage: info: source package antlr4
 dpkg-buildpackage: info: source version 4.9.2-3
 dpkg-buildpackage: info: source distribution unstable
@@ -2279,10 +2315,10 @@
 org/antlr/v4/parse/ANTLRLexer.g
 Output file /build/reproducible-path/antlr4-4.9.2/tool/target/generated-sources/antlr3/org/antlr/v4/parse/ANTLRParser.java does not exist: must build /build/reproducible-path/antlr4-4.9.2/tool/src/org/antlr/v4/parse/ANTLRParser.g
 org/antlr/v4/parse/ANTLRParser.g
-Output file /build/reproducible-path/antlr4-4.9.2/tool/target/generated-sources/antlr3/org/antlr/v4/parse/GrammarTreeVisitor.java does not exist: must build /build/reproducible-path/antlr4-4.9.2/tool/src/org/antlr/v4/parse/GrammarTreeVisitor.g
-org/antlr/v4/parse/GrammarTreeVisitor.g
 Output file /build/reproducible-path/antlr4-4.9.2/tool/target/generated-sources/antlr3/org/antlr/v4/codegen/SourceGenTriggers.java does not exist: must build /build/reproducible-path/antlr4-4.9.2/tool/src/org/antlr/v4/codegen/SourceGenTriggers.g
 org/antlr/v4/codegen/SourceGenTriggers.g
+Output file /build/reproducible-path/antlr4-4.9.2/tool/target/generated-sources/antlr3/org/antlr/v4/parse/GrammarTreeVisitor.java does not exist: must build /build/reproducible-path/antlr4-4.9.2/tool/src/org/antlr/v4/parse/GrammarTreeVisitor.g
+org/antlr/v4/parse/GrammarTreeVisitor.g
 Output file /build/reproducible-path/antlr4-4.9.2/tool/target/generated-sources/antlr3/org/antlr/v4/parse/BlockSetTransformer.java does not exist: must build /build/reproducible-path/antlr4-4.9.2/tool/src/org/antlr/v4/parse/BlockSetTransformer.g
 org/antlr/v4/parse/BlockSetTransformer.g
 Output file /build/reproducible-path/antlr4-4.9.2/tool/target/generated-sources/antlr3/org/antlr/v4/parse/ActionSplitter.java does not exist: must build /build/reproducible-path/antlr4-4.9.2/tool/src/org/antlr/v4/parse/ActionSplitter.g
@@ -2521,8 +2557,8 @@
 ANTLR Parser Generator  Version 3.5.3
 Grammar /build/reproducible-path/antlr4-4.9.2/tool/src/org/antlr/v4/parse/ANTLRLexer.g is up to date - build skipped
 Grammar /build/reproducible-path/antlr4-4.9.2/tool/src/org/antlr/v4/parse/ANTLRParser.g is up to date - build skipped
-Grammar /build/reproducible-path/antlr4-4.9.2/tool/src/org/antlr/v4/parse/GrammarTreeVisitor.g is up to date - build skipped
 Grammar /build/reproducible-path/antlr4-4.9.2/tool/src/org/antlr/v4/codegen/SourceGenTriggers.g is up to date - build skipped
+Grammar /build/reproducible-path/antlr4-4.9.2/tool/src/org/antlr/v4/parse/GrammarTreeVisitor.g is up to date - build skipped
 Grammar /build/reproducible-path/antlr4-4.9.2/tool/src/org/antlr/v4/parse/BlockSetTransformer.g is up to date - build skipped
 Grammar /build/reproducible-path/antlr4-4.9.2/tool/src/org/antlr/v4/parse/ActionSplitter.g is up to date - build skipped
 Grammar /build/reproducible-path/antlr4-4.9.2/tool/src/org/antlr/v4/parse/LeftRecursiveRuleWalker.g is up to date - build skipped
@@ -2641,15 +2677,15 @@
 [INFO] ------------------------------------------------------------------------
 [INFO] Reactor Summary for ANTLR 4 4.9.2:
 [INFO] 
-[INFO] ANTLR 4 ............................................ SUCCESS [02:28 min]
-[INFO] ANTLR 4 Runtime .................................... SUCCESS [02:26 min]
-[INFO] ANTLR 4 Tool ....................................... SUCCESS [02:53 min]
-[INFO] ANTLR 4 Maven plugin ............................... SUCCESS [ 43.387 s]
+[INFO] ANTLR 4 ............................................ SUCCESS [ 52.079 s]
+[INFO] ANTLR 4 Runtime .................................... SUCCESS [ 35.052 s]
+[INFO] ANTLR 4 Tool ....................................... SUCCESS [ 57.671 s]
+[INFO] ANTLR 4 Maven plugin ............................... SUCCESS [ 14.528 s]
 [INFO] ------------------------------------------------------------------------
 [INFO] BUILD SUCCESS
 [INFO] ------------------------------------------------------------------------
-[INFO] Total time:  08:40 min
-[INFO] Finished at: 2025-03-18T16:21:56Z
+[INFO] Total time:  02:42 min
+[INFO] Finished at: 2025-03-18T16:34:13Z
 [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/antlr4-4.9.2 -Dclassworlds.conf=/etc/maven/m2-debian.conf -Dproperties.file.manual=/build/reproducible-path/antlr4-4.9.2/debian/maven.properties org.codehaus.plexus.classworlds.launcher.Launcher -s/etc/maven/settings-debian.xml -Ddebian.dir=/build/reproducible-path/antlr4-4.9.2/debian -Dmaven.repo.local=/build/reproducible-path/antlr4-4.9.2/debian/maven-repo --batch-mode test
@@ -2712,8 +2748,8 @@
 ANTLR Parser Generator  Version 3.5.3
 Grammar /build/reproducible-path/antlr4-4.9.2/tool/src/org/antlr/v4/parse/ANTLRLexer.g is up to date - build skipped
 Grammar /build/reproducible-path/antlr4-4.9.2/tool/src/org/antlr/v4/parse/ANTLRParser.g is up to date - build skipped
-Grammar /build/reproducible-path/antlr4-4.9.2/tool/src/org/antlr/v4/parse/GrammarTreeVisitor.g is up to date - build skipped
 Grammar /build/reproducible-path/antlr4-4.9.2/tool/src/org/antlr/v4/codegen/SourceGenTriggers.g is up to date - build skipped
+Grammar /build/reproducible-path/antlr4-4.9.2/tool/src/org/antlr/v4/parse/GrammarTreeVisitor.g is up to date - build skipped
 Grammar /build/reproducible-path/antlr4-4.9.2/tool/src/org/antlr/v4/parse/BlockSetTransformer.g is up to date - build skipped
 Grammar /build/reproducible-path/antlr4-4.9.2/tool/src/org/antlr/v4/parse/ActionSplitter.g is up to date - build skipped
 Grammar /build/reproducible-path/antlr4-4.9.2/tool/src/org/antlr/v4/parse/LeftRecursiveRuleWalker.g is up to date - build skipped
@@ -2839,15 +2875,15 @@
 [INFO] ------------------------------------------------------------------------
 [INFO] Reactor Summary for ANTLR 4 4.9.2:
 [INFO] 
-[INFO] ANTLR 4 ............................................ SUCCESS [  0.016 s]
-[INFO] ANTLR 4 Runtime .................................... SUCCESS [ 18.647 s]
-[INFO] ANTLR 4 Tool ....................................... SUCCESS [01:30 min]
-[INFO] ANTLR 4 Maven plugin ............................... SUCCESS [ 24.942 s]
+[INFO] ANTLR 4 ............................................ SUCCESS [  0.007 s]
+[INFO] ANTLR 4 Runtime .................................... SUCCESS [  5.666 s]
+[INFO] ANTLR 4 Tool ....................................... SUCCESS [ 32.126 s]
+[INFO] ANTLR 4 Maven plugin ............................... SUCCESS [ 11.402 s]
 [INFO] ------------------------------------------------------------------------
 [INFO] BUILD SUCCESS
 [INFO] ------------------------------------------------------------------------
-[INFO] Total time:  02:15 min
-[INFO] Finished at: 2025-03-18T16:24:24Z
+[INFO] Total time:  49.657 s
+[INFO] Finished at: 2025-03-18T16:35:07Z
 [INFO] ------------------------------------------------------------------------
    create-stamp debian/debhelper-build-stamp
    dh_prep
@@ -2925,15 +2961,15 @@
 [INFO] ------------------------------------------------------------------------
 [INFO] Reactor Summary for ANTLR 4 4.9.2:
 [INFO] 
-[INFO] ANTLR 4 ............................................ SUCCESS [  3.247 s]
-[INFO] ANTLR 4 Runtime .................................... SUCCESS [  0.449 s]
-[INFO] ANTLR 4 Tool ....................................... SUCCESS [  0.421 s]
-[INFO] ANTLR 4 Maven plugin ............................... SUCCESS [  0.200 s]
+[INFO] ANTLR 4 ............................................ SUCCESS [  1.447 s]
+[INFO] ANTLR 4 Runtime .................................... SUCCESS [  0.188 s]
+[INFO] ANTLR 4 Tool ....................................... SUCCESS [  0.153 s]
+[INFO] ANTLR 4 Maven plugin ............................... SUCCESS [  0.069 s]
 [INFO] ------------------------------------------------------------------------
 [INFO] BUILD SUCCESS
 [INFO] ------------------------------------------------------------------------
-[INFO] Total time:  5.676 s
-[INFO] Finished at: 2025-03-18T16:24:43Z
+[INFO] Total time:  2.486 s
+[INFO] Finished at: 2025-03-18T16:35:16Z
 [INFO] ------------------------------------------------------------------------
 	mh_resolve_dependencies --non-interactive --offline --build -pantlr4 --javadoc --base-directory=/build/reproducible-path/antlr4-4.9.2 --non-explore
 Analysing pom.xml...
@@ -3054,18 +3090,18 @@
    dh_missing
    dh_installdeb
    dh_gencontrol
-dpkg-gencontrol: warning: package antlr4: substitution variable ${maven:CompileDepends} unused, but is defined
-dpkg-gencontrol: warning: package antlr4: substitution variable ${maven:Depends} unused, but is defined
-dpkg-gencontrol: warning: package antlr4: substitution variable ${maven:DocDepends} unused, but is defined
 dpkg-gencontrol: warning: package antlr4-doc: substitution variable ${maven:CompileDepends} unused, but is defined
 dpkg-gencontrol: warning: package antlr4-doc: substitution variable ${maven:Depends} unused, but is defined
 dpkg-gencontrol: warning: package antlr4-doc: substitution variable ${maven:DocDepends} unused, but is defined
+dpkg-gencontrol: warning: package antlr4: substitution variable ${maven:CompileDepends} unused, but is defined
+dpkg-gencontrol: warning: package antlr4: substitution variable ${maven:Depends} unused, but is defined
+dpkg-gencontrol: warning: package antlr4: substitution variable ${maven:DocDepends} unused, but is defined
    dh_md5sums
    dh_builddeb
-dpkg-deb: building package 'libantlr4-runtime-java' in '../libantlr4-runtime-java_4.9.2-3_all.deb'.
-dpkg-deb: building package 'antlr4-doc' in '../antlr4-doc_4.9.2-3_all.deb'.
 dpkg-deb: building package 'antlr4' in '../antlr4_4.9.2-3_all.deb'.
+dpkg-deb: building package 'antlr4-doc' in '../antlr4-doc_4.9.2-3_all.deb'.
 dpkg-deb: building package 'antlr4-maven-plugin' in '../antlr4-maven-plugin_4.9.2-3_all.deb'.
+dpkg-deb: building package 'libantlr4-runtime-java' in '../libantlr4-runtime-java_4.9.2-3_all.deb'.
  dpkg-genbuildinfo --build=binary -O../antlr4_4.9.2-3_armhf.buildinfo
  dpkg-genchanges --build=binary -O../antlr4_4.9.2-3_armhf.changes
 dpkg-genchanges: info: binary-only upload (no source code included)
@@ -3073,12 +3109,14 @@
 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/12089/tmp/hooks/B01_cleanup starting
+I: user script /srv/workspace/pbuilder/12089/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/31722 and its subdirectories
-I: Current time: Tue Mar 18 04:28:34 -12 2025
-I: pbuilder-time-stamp: 1742315314
+I: removing directory /srv/workspace/pbuilder/12089 and its subdirectories
+I: Current time: Wed Mar 19 06:38:28 +14 2025
+I: pbuilder-time-stamp: 1742315908