Diff of the two buildlogs:

--
--- b1/build.log	2025-01-21 09:59:35.372955643 +0000
+++ b2/build.log	2025-01-21 10:00:12.807277203 +0000
@@ -1,6 +1,6 @@
 I: pbuilder: network access will be disabled during build
-I: Current time: Mon Jan 20 21:58:50 -12 2025
-I: pbuilder-time-stamp: 1737453530
+I: Current time: Tue Feb 24 06:22:38 +14 2026
+I: pbuilder-time-stamp: 1771863758
 I: Building the build Environment
 I: extracting base tarball [/var/cache/pbuilder/trixie-reproducible-base.tgz]
 I: copying local configuration
@@ -25,52 +25,84 @@
 dpkg-source: info: applying spelling.patch
 I: Not using root during the build.
 I: Installing the build-deps
-I: user script /srv/workspace/pbuilder/3853818/tmp/hooks/D02_print_environment starting
+I: user script /srv/workspace/pbuilder/731657/tmp/hooks/D01_modify_environment starting
+debug: Running on codethink01-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 Feb 23 16:22 /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/731657/tmp/hooks/D01_modify_environment finished
+I: user script /srv/workspace/pbuilder/731657/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='3884f35bbcfc4316a32f15a3075da6c8'
-  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='3853818'
-  PS1='# '
-  PS2='> '
+  INVOCATION_ID=532dca4360e54bf49d76ddaa277b29cf
+  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=731657
   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.iHk97ykN/pbuilderrc_h5js --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.iHk97ykN/b1 --logfile b1/build.log libtext-mecab-perl_0.20016-5.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.iHk97ykN/pbuilderrc_ef4x --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.iHk97ykN/b2 --logfile b2/build.log libtext-mecab-perl_0.20016-5.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 codethink02-arm64 6.1.0-30-cloud-arm64 #1 SMP Debian 6.1.124-1 (2025-01-12) aarch64 GNU/Linux
+  Linux i-capture-the-hostname 6.1.0-30-cloud-arm64 #1 SMP Debian 6.1.124-1 (2025-01-12) aarch64 GNU/Linux
 I: ls -l /bin
-  lrwxrwxrwx 1 root root 7 Nov 22 14:40 /bin -> usr/bin
-I: user script /srv/workspace/pbuilder/3853818/tmp/hooks/D02_print_environment finished
+  lrwxrwxrwx 1 root root 7 Nov 22  2024 /bin -> usr/bin
+I: user script /srv/workspace/pbuilder/731657/tmp/hooks/D02_print_environment finished
  -> Attempting to satisfy build-dependencies
  -> Creating pbuilder-satisfydepends-dummy package
 Package: pbuilder-satisfydepends-dummy
@@ -156,7 +188,7 @@
 Get: 37 http://deb.debian.org/debian trixie/main arm64 mecab-utils arm64 0.996-15.1+b3 [6752 B]
 Get: 38 http://deb.debian.org/debian trixie/main arm64 mecab-jumandic-utf8 all 7.0-20130310-7 [16.2 MB]
 Get: 39 http://deb.debian.org/debian trixie/main arm64 mecab-jumandic all 7.0-20130310-7 [3720 B]
-Fetched 37.6 MB in 1s (39.8 MB/s)
+Fetched 37.6 MB in 0s (139 MB/s)
 Preconfiguring packages ...
 Selecting previously unselected package sensible-utils.
 (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 ... 19970 files and directories currently installed.)
@@ -352,7 +384,11 @@
 Building tag database...
  -> Finished parsing the build-deps
 I: Building the package
-I: Running cd /build/reproducible-path/libtext-mecab-perl-0.20016/ && 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  > ../libtext-mecab-perl_0.20016-5_source.changes
+I: user script /srv/workspace/pbuilder/731657/tmp/hooks/A99_set_merged_usr starting
+Not re-configuring usrmerge for trixie
+I: user script /srv/workspace/pbuilder/731657/tmp/hooks/A99_set_merged_usr finished
+hostname: Name or service not known
+I: Running cd /build/reproducible-path/libtext-mecab-perl-0.20016/ && 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  > ../libtext-mecab-perl_0.20016-5_source.changes
 dpkg-buildpackage: info: source package libtext-mecab-perl
 dpkg-buildpackage: info: source version 0.20016-5
 dpkg-buildpackage: info: source distribution unstable
@@ -398,16 +434,16 @@
    dh_auto_build
 	make -j12
 make[1]: Entering directory '/build/reproducible-path/libtext-mecab-perl-0.20016'
-Running Mkbootstrap for MeCab ()
 "/usr/bin/perl" "-Iinc" "/usr/share/perl/5.40/ExtUtils/xsubpp"  -typemap '/usr/share/perl/5.40/ExtUtils/typemap'  xs/MeCab.xs > xs/MeCab.xsc
+Running Mkbootstrap for MeCab ()
 aarch64-linux-gnu-gcc -c  "-I." "-I/usr/include" "-I." -D_REENTRANT -D_GNU_SOURCE -DDEBIAN -fwrapv -fno-strict-aliasing -pipe -I/usr/local/include -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64 -DMECAB_MAJOR_VERSION=0 -DMECAB_MINOR_VERSION=996 -I src -Wall -W -Wno-comment -g -O2 -Werror=implicit-function-declaration -ffile-prefix-map=/build/reproducible-path/libtext-mecab-perl-0.20016=. -fstack-protector-strong -fstack-clash-protection -Wformat -Werror=format-security -mbranch-protection=standard -Wdate-time -D_FORTIFY_SOURCE=2   -DVERSION=\"0.20016\" -DXS_VERSION=\"0.20016\" -o xs/text-mecab-clone.o -fPIC "-I/usr/lib/aarch64-linux-gnu/perl/5.40/CORE"  -DUSE_PPPORT -DTEXT_MECAB_ENCODING='"utf-8"' -DTEXT_MECAB_CONFIG='"/usr/bin/mecab-config"' xs/text-mecab-clone.c
-cp lib/Text/MeCab.pm blib/lib/Text/MeCab.pm
-cp lib/Text/MeCab/Node.pod blib/lib/Text/MeCab/Node.pod
-cp lib/Text/MeCab/Dict.pm blib/lib/Text/MeCab/Dict.pm
 chmod 644 "MeCab.bs"
 aarch64-linux-gnu-gcc -c  "-I." "-I/usr/include" "-I." -D_REENTRANT -D_GNU_SOURCE -DDEBIAN -fwrapv -fno-strict-aliasing -pipe -I/usr/local/include -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64 -DMECAB_MAJOR_VERSION=0 -DMECAB_MINOR_VERSION=996 -I src -Wall -W -Wno-comment -g -O2 -Werror=implicit-function-declaration -ffile-prefix-map=/build/reproducible-path/libtext-mecab-perl-0.20016=. -fstack-protector-strong -fstack-clash-protection -Wformat -Werror=format-security -mbranch-protection=standard -Wdate-time -D_FORTIFY_SOURCE=2   -DVERSION=\"0.20016\" -DXS_VERSION=\"0.20016\" -o xs/text-mecab-node.o -fPIC "-I/usr/lib/aarch64-linux-gnu/perl/5.40/CORE"  -DUSE_PPPORT -DTEXT_MECAB_ENCODING='"utf-8"' -DTEXT_MECAB_CONFIG='"/usr/bin/mecab-config"' xs/text-mecab-node.c
 aarch64-linux-gnu-gcc -c  "-I." "-I/usr/include" "-I." -D_REENTRANT -D_GNU_SOURCE -DDEBIAN -fwrapv -fno-strict-aliasing -pipe -I/usr/local/include -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64 -DMECAB_MAJOR_VERSION=0 -DMECAB_MINOR_VERSION=996 -I src -Wall -W -Wno-comment -g -O2 -Werror=implicit-function-declaration -ffile-prefix-map=/build/reproducible-path/libtext-mecab-perl-0.20016=. -fstack-protector-strong -fstack-clash-protection -Wformat -Werror=format-security -mbranch-protection=standard -Wdate-time -D_FORTIFY_SOURCE=2   -DVERSION=\"0.20016\" -DXS_VERSION=\"0.20016\" -o xs/text-mecab.o -fPIC "-I/usr/lib/aarch64-linux-gnu/perl/5.40/CORE"  -DUSE_PPPORT -DTEXT_MECAB_ENCODING='"utf-8"' -DTEXT_MECAB_CONFIG='"/usr/bin/mecab-config"' xs/text-mecab.c
 "/usr/bin/perl" "-Iinc" -MExtUtils::Command::MM -e 'cp_nonempty' -- MeCab.bs blib/arch/auto/Text/MeCab/MeCab.bs 644
+cp lib/Text/MeCab/Dict.pm blib/lib/Text/MeCab/Dict.pm
+cp lib/Text/MeCab/Node.pod blib/lib/Text/MeCab/Node.pod
+cp lib/Text/MeCab.pm blib/lib/Text/MeCab.pm
 mv xs/MeCab.xsc xs/MeCab.c
 aarch64-linux-gnu-gcc -c  "-I." "-I/usr/include" "-I." -D_REENTRANT -D_GNU_SOURCE -DDEBIAN -fwrapv -fno-strict-aliasing -pipe -I/usr/local/include -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64 -DMECAB_MAJOR_VERSION=0 -DMECAB_MINOR_VERSION=996 -I src -Wall -W -Wno-comment -g -O2 -Werror=implicit-function-declaration -ffile-prefix-map=/build/reproducible-path/libtext-mecab-perl-0.20016=. -fstack-protector-strong -fstack-clash-protection -Wformat -Werror=format-security -mbranch-protection=standard -Wdate-time -D_FORTIFY_SOURCE=2   -DVERSION=\"0.20016\" -DXS_VERSION=\"0.20016\" -o xs/MeCab.o -fPIC "-I/usr/lib/aarch64-linux-gnu/perl/5.40/CORE"  -DUSE_PPPORT -DTEXT_MECAB_ENCODING='"utf-8"' -DTEXT_MECAB_CONFIG='"/usr/bin/mecab-config"' xs/MeCab.c
 rm -f blib/arch/auto/Text/MeCab/MeCab.so
@@ -5590,7 +5626,7 @@
 1..4923
 ok
 All tests successful.
-Files=10, Tests=5116,  1 wallclock secs ( 0.12 usr  0.03 sys +  0.65 cusr  0.12 csys =  0.92 CPU)
+Files=10, Tests=5116,  1 wallclock secs ( 0.17 usr  0.02 sys +  0.69 cusr  0.11 csys =  0.99 CPU)
 Result: PASS
 make[1]: Leaving directory '/build/reproducible-path/libtext-mecab-perl-0.20016'
    create-stamp debian/debhelper-build-stamp
@@ -5603,8 +5639,8 @@
 Files found in blib/arch: installing files in blib/lib into architecture dependent library tree
 Installing /build/reproducible-path/libtext-mecab-perl-0.20016/debian/libtext-mecab-perl/usr/lib/aarch64-linux-gnu/perl5/5.40/auto/Text/MeCab/MeCab.so
 Installing /build/reproducible-path/libtext-mecab-perl-0.20016/debian/libtext-mecab-perl/usr/lib/aarch64-linux-gnu/perl5/5.40/Text/MeCab.pm
-Installing /build/reproducible-path/libtext-mecab-perl-0.20016/debian/libtext-mecab-perl/usr/lib/aarch64-linux-gnu/perl5/5.40/Text/MeCab/Dict.pm
 Installing /build/reproducible-path/libtext-mecab-perl-0.20016/debian/libtext-mecab-perl/usr/lib/aarch64-linux-gnu/perl5/5.40/Text/MeCab/Node.pod
+Installing /build/reproducible-path/libtext-mecab-perl-0.20016/debian/libtext-mecab-perl/usr/lib/aarch64-linux-gnu/perl5/5.40/Text/MeCab/Dict.pm
 Installing /build/reproducible-path/libtext-mecab-perl-0.20016/debian/libtext-mecab-perl/usr/share/man/man3/Text::MeCab::Node.3pm
 Installing /build/reproducible-path/libtext-mecab-perl-0.20016/debian/libtext-mecab-perl/usr/share/man/man3/Text::MeCab::Dict.3pm
 Installing /build/reproducible-path/libtext-mecab-perl-0.20016/debian/libtext-mecab-perl/usr/share/man/man3/Text::MeCab.3pm
@@ -5631,8 +5667,8 @@
    dh_gencontrol
    dh_md5sums
    dh_builddeb
-dpkg-deb: building package 'libtext-mecab-perl-dbgsym' in '../libtext-mecab-perl-dbgsym_0.20016-5_arm64.deb'.
 dpkg-deb: building package 'libtext-mecab-perl' in '../libtext-mecab-perl_0.20016-5_arm64.deb'.
+dpkg-deb: building package 'libtext-mecab-perl-dbgsym' in '../libtext-mecab-perl-dbgsym_0.20016-5_arm64.deb'.
  dpkg-genbuildinfo --build=binary -O../libtext-mecab-perl_0.20016-5_arm64.buildinfo
  dpkg-genchanges --build=binary -O../libtext-mecab-perl_0.20016-5_arm64.changes
 dpkg-genchanges: info: binary-only upload (no source code included)
@@ -5640,12 +5676,14 @@
 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/731657/tmp/hooks/B01_cleanup starting
+I: user script /srv/workspace/pbuilder/731657/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/3853818 and its subdirectories
-I: Current time: Mon Jan 20 21:59:34 -12 2025
-I: pbuilder-time-stamp: 1737453574
+I: removing directory /srv/workspace/pbuilder/731657 and its subdirectories
+I: Current time: Tue Feb 24 06:23:11 +14 2026
+I: pbuilder-time-stamp: 1771863791