Diff of the two buildlogs:

--
--- b1/build.log	2024-08-01 17:14:44.100480908 +0000
+++ b2/build.log	2024-08-01 17:17:28.393516901 +0000
@@ -1,6 +1,6 @@
 I: pbuilder: network access will be disabled during build
-I: Current time: Thu Aug  1 05:13:39 -12 2024
-I: pbuilder-time-stamp: 1722532419
+I: Current time: Fri Aug  2 07:14:55 +14 2024
+I: pbuilder-time-stamp: 1722532495
 I: Building the build Environment
 I: extracting base tarball [/var/cache/pbuilder/unstable-reproducible-base.tgz]
 I: copying local configuration
@@ -25,52 +25,84 @@
 dpkg-source: info: unpacking liblatex-tom-perl_1.06-1.debian.tar.xz
 I: Not using root during the build.
 I: Installing the build-deps
-I: user script /srv/workspace/pbuilder/7281/tmp/hooks/D02_print_environment starting
+I: user script /srv/workspace/pbuilder/27767/tmp/hooks/D01_modify_environment starting
+debug: Running on cbxi4b.
+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 Aug  1 17:15 /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/27767/tmp/hooks/D01_modify_environment finished
+I: user script /srv/workspace/pbuilder/27767/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='unstable'
-  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]="21" [3]="1" [4]="release" [5]="arm-unknown-linux-gnueabihf")
+  BASH_VERSION='5.2.21(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=unstable
+  EUID=0
+  FUNCNAME=([0]="Echo" [1]="main")
+  GROUPS=()
+  HOME=/root
+  HOSTNAME=i-capture-the-hostname
+  HOSTTYPE=arm
+  HOST_ARCH=armhf
   IFS=' 	
   '
-  INVOCATION_ID='da2e318ce3224c12b026c338d7058214'
-  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='7281'
-  PS1='# '
-  PS2='> '
+  INVOCATION_ID=ed883bdd93ea49068dfa02dcfdbbe18f
+  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=27767
   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.7wjJuWGQ/pbuilderrc_JGno --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.7wjJuWGQ/b1 --logfile b1/build.log liblatex-tom-perl_1.06-1.dsc'
-  SUDO_GID='114'
-  SUDO_UID='108'
-  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.7wjJuWGQ/pbuilderrc_j6hN --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.7wjJuWGQ/b2 --logfile b2/build.log liblatex-tom-perl_1.06-1.dsc'
+  SUDO_GID=116
+  SUDO_UID=112
+  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 virt64a 6.1.0-23-arm64 #1 SMP Debian 6.1.99-1 (2024-07-15) aarch64 GNU/Linux
+  Linux i-capture-the-hostname 6.1.0-23-armmp #1 SMP Debian 6.1.99-1 (2024-07-15) armv7l GNU/Linux
 I: ls -l /bin
   lrwxrwxrwx 1 root root 7 Jun  5 22:35 /bin -> usr/bin
-I: user script /srv/workspace/pbuilder/7281/tmp/hooks/D02_print_environment finished
+I: user script /srv/workspace/pbuilder/27767/tmp/hooks/D02_print_environment finished
  -> Attempting to satisfy build-dependencies
  -> Creating pbuilder-satisfydepends-dummy package
 Package: pbuilder-satisfydepends-dummy
@@ -138,7 +170,7 @@
 Get: 28 http://deb.debian.org/debian unstable/main armhf po-debconf all 1.0.21+nmu1 [248 kB]
 Get: 29 http://deb.debian.org/debian unstable/main armhf debhelper all 13.16 [891 kB]
 Get: 30 http://deb.debian.org/debian unstable/main armhf libmodule-build-perl all 0.423400-2 [252 kB]
-Fetched 19.1 MB in 1s (29.2 MB/s)
+Fetched 19.1 MB in 2s (10.5 MB/s)
 debconf: delaying package configuration, since apt-utils is not installed
 Selecting previously unselected package sensible-utils.
 (Reading database ... 
(Reading database ... 5%
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(Reading database ... 85%
(Reading database ... 90%
(Reading database ... 95%
(Reading database ... 100%
(Reading database ... 19507 files and directories currently installed.)
@@ -275,7 +307,11 @@
 Building tag database...
  -> Finished parsing the build-deps
 I: Building the package
-I: Running cd /build/reproducible-path/liblatex-tom-perl-1.06/ && 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  > ../liblatex-tom-perl_1.06-1_source.changes
+I: user script /srv/workspace/pbuilder/27767/tmp/hooks/A99_set_merged_usr starting
+Not re-configuring usrmerge for unstable
+I: user script /srv/workspace/pbuilder/27767/tmp/hooks/A99_set_merged_usr finished
+hostname: Name or service not known
+I: Running cd /build/reproducible-path/liblatex-tom-perl-1.06/ && 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  > ../liblatex-tom-perl_1.06-1_source.changes
 dpkg-buildpackage: info: source package liblatex-tom-perl
 dpkg-buildpackage: info: source version 1.06-1
 dpkg-buildpackage: info: source distribution unstable
@@ -410,7 +446,7 @@
 t/pod-coverage.t .. skipped: tests for release testing
 t/pod.t ........... skipped: tests for release testing
 All tests successful.
-Files=12, Tests=79,  3 wallclock secs ( 0.10 usr  0.02 sys +  2.48 cusr  0.30 csys =  2.90 CPU)
+Files=12, Tests=79, 12 wallclock secs ( 0.30 usr  0.10 sys +  9.11 cusr  0.97 csys = 10.48 CPU)
 Result: PASS
    create-stamp debian/debhelper-build-stamp
    dh_prep
@@ -418,9 +454,9 @@
 	/usr/bin/perl Build install --destdir /build/reproducible-path/liblatex-tom-perl-1.06/debian/liblatex-tom-perl --create_packlist 0
 Building LaTeX-TOM
 Installing /build/reproducible-path/liblatex-tom-perl-1.06/debian/liblatex-tom-perl/usr/share/perl5/LaTeX/TOM.pm
-Installing /build/reproducible-path/liblatex-tom-perl-1.06/debian/liblatex-tom-perl/usr/share/perl5/LaTeX/TOM/Node.pm
-Installing /build/reproducible-path/liblatex-tom-perl-1.06/debian/liblatex-tom-perl/usr/share/perl5/LaTeX/TOM/Parser.pm
 Installing /build/reproducible-path/liblatex-tom-perl-1.06/debian/liblatex-tom-perl/usr/share/perl5/LaTeX/TOM/Tree.pm
+Installing /build/reproducible-path/liblatex-tom-perl-1.06/debian/liblatex-tom-perl/usr/share/perl5/LaTeX/TOM/Parser.pm
+Installing /build/reproducible-path/liblatex-tom-perl-1.06/debian/liblatex-tom-perl/usr/share/perl5/LaTeX/TOM/Node.pm
 Installing /build/reproducible-path/liblatex-tom-perl-1.06/debian/liblatex-tom-perl/usr/share/man/man3/LaTeX::TOM.3pm
    dh_installdocs
    dh_installchangelogs
@@ -443,12 +479,14 @@
 dpkg-buildpackage: info: binary-only upload (no source included)
 dpkg-genchanges: info: including full source code in upload
 I: copying local configuration
+I: user script /srv/workspace/pbuilder/27767/tmp/hooks/B01_cleanup starting
+I: user script /srv/workspace/pbuilder/27767/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/7281 and its subdirectories
-I: Current time: Thu Aug  1 05:14:40 -12 2024
-I: pbuilder-time-stamp: 1722532480
+I: removing directory /srv/workspace/pbuilder/27767 and its subdirectories
+I: Current time: Fri Aug  2 07:17:24 +14 2024
+I: pbuilder-time-stamp: 1722532644