Diff of the two buildlogs:

--
--- b1/build.log	2025-11-07 08:17:14.391265033 +0000
+++ b2/build.log	2025-11-07 08:18:11.755327470 +0000
@@ -1,6 +1,6 @@
 I: pbuilder: network access will be disabled during build
-I: Current time: Thu Dec 10 02:39:51 -12 2026
-I: pbuilder-time-stamp: 1796913591
+I: Current time: Fri Nov  7 22:17:16 +14 2025
+I: pbuilder-time-stamp: 1762503436
 I: Building the build Environment
 I: extracting base tarball [/var/cache/pbuilder/forky-reproducible-base.tgz]
 I: copying local configuration
@@ -22,53 +22,85 @@
 dpkg-source: info: unpacking libmods-record-perl_0.13-2.debian.tar.xz
 I: Not using root during the build.
 I: Installing the build-deps
-I: user script /srv/workspace/pbuilder/2525880/tmp/hooks/D02_print_environment starting
+I: user script /srv/workspace/pbuilder/1207012/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 Nov  7 08:17 /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/1207012/tmp/hooks/D01_modify_environment finished
+I: user script /srv/workspace/pbuilder/1207012/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'
-  DEB_BUILD_OPTIONS='buildinfo=+all reproducible=+all parallel=12 '
-  DISTRIBUTION='forky'
-  HOME='/root'
-  HOST_ARCH='arm64'
+  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]="3" [2]="3" [3]="1" [4]="release" [5]="aarch64-unknown-linux-gnu")
+  BASH_VERSION='5.3.3(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  nocheck'
+  DIRSTACK=()
+  DISTRIBUTION=forky
+  EUID=0
+  FUNCNAME=([0]="Echo" [1]="main")
+  GROUPS=()
+  HOME=/root
+  HOSTNAME=i-capture-the-hostname
+  HOSTTYPE=aarch64
+  HOST_ARCH=arm64
   IFS=' 	
   '
-  INVOCATION_ID='b263483e06214c4081108c723be83369'
-  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='2525880'
-  PS1='# '
-  PS2='> '
+  INVOCATION_ID=2da4bf7c7ae74feabb3e5e5fad1c65f4
+  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=1207012
   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.eS75reE5/pbuilderrc_vO1o --distribution forky --hookdir /etc/pbuilder/first-build-hooks --debbuildopts -b --basetgz /var/cache/pbuilder/forky-reproducible-base.tgz --buildresult /srv/reproducible-results/rbuild-debian/r-b-build.eS75reE5/b1 --logfile b1/build.log libmods-record-perl_0.13-2.dsc'
-  SUDO_GID='109'
-  SUDO_HOME='/var/lib/jenkins'
-  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.eS75reE5/pbuilderrc_lblh --distribution forky --hookdir /etc/pbuilder/rebuild-hooks --debbuildopts -b --basetgz /var/cache/pbuilder/forky-reproducible-base.tgz --buildresult /srv/reproducible-results/rbuild-debian/r-b-build.eS75reE5/b2 --logfile b2/build.log libmods-record-perl_0.13-2.dsc'
+  SUDO_GID=109
+  SUDO_HOME=/var/lib/jenkins
+  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 6.12.48+deb13-cloud-arm64 #1 SMP Debian 6.12.48-1 (2025-09-20) aarch64 GNU/Linux
+  Linux i-capture-the-hostname 6.12.48+deb13-cloud-arm64 #1 SMP Debian 6.12.48-1 (2025-09-20) aarch64 GNU/Linux
 I: ls -l /bin
-  lrwxrwxrwx 1 root root 7 Aug 10  2025 /bin -> usr/bin
-I: user script /srv/workspace/pbuilder/2525880/tmp/hooks/D02_print_environment finished
+  lrwxrwxrwx 1 root root 7 Aug 10 12:30 /bin -> usr/bin
+I: user script /srv/workspace/pbuilder/1207012/tmp/hooks/D02_print_environment finished
  -> Attempting to satisfy build-dependencies
  -> Creating pbuilder-satisfydepends-dummy package
 Package: pbuilder-satisfydepends-dummy
@@ -193,7 +225,7 @@
 Get: 75 http://deb.debian.org/debian forky/main arm64 libtest-deep-perl all 1.205-1 [52.3 kB]
 Get: 76 http://deb.debian.org/debian forky/main arm64 libtest-exception-perl all 0.43-3 [16.9 kB]
 Get: 77 http://deb.debian.org/debian forky/main arm64 libxml-parser-perl arm64 2.47-1+b3 [197 kB]
-Fetched 14.9 MB in 0s (84.7 MB/s)
+Fetched 14.9 MB in 0s (68.9 MB/s)
 Preconfiguring packages ...
 Selecting previously unselected package libexpat1: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 ... 19964 files and directories currently installed.)
@@ -523,7 +555,11 @@
 Building tag database...
  -> Finished parsing the build-deps
 I: Building the package
-I: Running cd /build/reproducible-path/libmods-record-perl-0.13/ && 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  > ../libmods-record-perl_0.13-2_source.changes
+I: user script /srv/workspace/pbuilder/1207012/tmp/hooks/A99_set_merged_usr starting
+Not re-configuring usrmerge for forky
+I: user script /srv/workspace/pbuilder/1207012/tmp/hooks/A99_set_merged_usr finished
+hostname: Name or service not known
+I: Running cd /build/reproducible-path/libmods-record-perl-0.13/ && 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  > ../libmods-record-perl_0.13-2_source.changes
 dpkg-buildpackage: info: source package libmods-record-perl
 dpkg-buildpackage: info: source version 0.13-2
 dpkg-buildpackage: info: source distribution unstable
@@ -543,88 +579,7 @@
    dh_auto_build
 	/usr/bin/perl Build
 cp lib/MODS/Record.pm blib/lib/MODS/Record.pm
-   dh_auto_test
-	/usr/bin/perl Build test --verbose 1
-# Testing MODS::Record 0.13
-t/00_load.t ............ 
-1..1
-ok 1 - use MODS::Record;
-ok
-t/01_mods.t ............ 
-1..68
-ok 1 - new
-ok 2 - version
-ok 3 - set version
-ok 4 - version
-ok 5 - set abstract
-ok 6 - test abstract body
-ok 7 - test abstract lang
-ok 8 - test abstract contentType
-ok 9 - set abstract
-ok 10 - test abstract body
-ok 11 - test abstract lang
-ok 12 - test abstract contentType
-ok 13 - set abstract
-ok 14 - test abstract body
-ok 15 - test abstract lang
-ok 16 - test abstract contentType
-ok 17
-ok 18
-ok 19
-ok 20 - test abstract body
-ok 21 - test abstract lang
-ok 22 - test abstract contentType
-ok 23 - get abstract
-ok 24 - count abstract
-ok 25 - set abstract
-ok 26 - test abstract body
-ok 27 - test abstract lang
-ok 28 - test abstract contentType
-ok 29 - get abstract
-ok 30 - count abstract
-ok 31 - get one abstract
-ok 32 - get one abstract
-ok 33 - set string accessCondition
-ok 34
-ok 35 - set XML accessCondition
-ok 36
-ok 37 - test
-ok 38
-ok 39
-ok 40 - get accessCondition
-ok 41 - count accessCondition
-ok 42 - set accessCondition
-ok 43 - set accessCondition
-ok 44 - set accessCondition
-ok 45 - set accessCondition
-ok 46 - from_xml
-ok 47 - titleInfo/title
-ok 48 - titleInfo[type="alternative"]/title
-ok 49 - relatedItem[type="original"]/location/shelfLocator
-ok 50
-ok 51 - from_json
-ok 52 - titleInfo/title
-ok 53 - titleInfo[type="alternative"]/title
-ok 54 - as_xml
-ok 55 - looks like xml
-ok 56 - as_json
-ok 57 - as_json (element)
-ok 58 - as_json (element)
-ok 59 - from_json (callback)
-ok 60 - titleInfo/title
-ok 61 - from_xml (callback
-ok 62 - titleInfo/title
-ok 63 - UTF-8 json
-ok 64 - UTF-8 parse
-ok 65 - read abstract
-ok 66 - UTF-8 xml
-ok 67 - UTF-8 parse
-ok 68 - read abstract
-ok
-t/author-pod-syntax.t .. skipped: these tests are for testing by the author
-All tests successful.
-Files=3, Tests=69,  1 wallclock secs ( 0.03 usr  0.01 sys +  0.49 cusr  0.03 csys =  0.56 CPU)
-Result: PASS
+dh: command-omitted: The call to "dh_auto_test" was omitted due to "DEB_BUILD_OPTIONS=nocheck"
    create-stamp debian/debhelper-build-stamp
    dh_prep
    dh_auto_install --destdir=debian/libmods-record-perl/
@@ -652,12 +607,14 @@
 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/1207012/tmp/hooks/B01_cleanup starting
+I: user script /srv/workspace/pbuilder/1207012/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/2525880 and its subdirectories
-I: Current time: Thu Dec 10 02:40:13 -12 2026
-I: pbuilder-time-stamp: 1796913613
+I: removing directory /srv/workspace/pbuilder/1207012 and its subdirectories
+I: Current time: Fri Nov  7 22:18:11 +14 2025
+I: pbuilder-time-stamp: 1762503491