Diff of the two buildlogs:

--
--- b1/build.log	2025-03-21 10:21:19.768791997 +0000
+++ b2/build.log	2025-03-21 10:22:19.214122076 +0000
@@ -1,6 +1,6 @@
 I: pbuilder: network access will be disabled during build
-I: Current time: Thu Mar 20 22:20:23 -12 2025
-I: pbuilder-time-stamp: 1742552423
+I: Current time: Sat Mar 22 00:21:28 +14 2025
+I: pbuilder-time-stamp: 1742552488
 I: Building the build Environment
 I: extracting base tarball [/var/cache/pbuilder/unstable-reproducible-base.tgz]
 I: copying local configuration
@@ -23,52 +23,84 @@
 dpkg-source: info: unpacking gnulib-l10n_0~20241231-2.debian.tar.xz
 I: Not using root during the build.
 I: Installing the build-deps
-I: user script /srv/workspace/pbuilder/18307/tmp/hooks/D02_print_environment starting
+I: user script /srv/workspace/pbuilder/14604/tmp/hooks/D01_modify_environment starting
+debug: Running on virt64z.
+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 21 10:21 /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/14604/tmp/hooks/D01_modify_environment finished
+I: user script /srv/workspace/pbuilder/14604/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]="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=unstable
+  EUID=0
+  FUNCNAME=([0]="Echo" [1]="main")
+  GROUPS=()
+  HOME=/root
+  HOSTNAME=i-capture-the-hostname
+  HOSTTYPE=arm
+  HOST_ARCH=armhf
   IFS=' 	
   '
-  INVOCATION_ID='92ef6c6aa5754f21834bbe041b84f5ea'
-  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='18307'
-  PS1='# '
-  PS2='> '
+  INVOCATION_ID=423e70337bd54fe891f8a3d371e84a17
+  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=14604
   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.nlM9fEmF/pbuilderrc_MIRW --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.nlM9fEmF/b1 --logfile b1/build.log gnulib-l10n_0~20241231-2.dsc'
-  SUDO_GID='113'
-  SUDO_UID='107'
-  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.nlM9fEmF/pbuilderrc_pbH0 --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.nlM9fEmF/b2 --logfile b2/build.log gnulib-l10n_0~20241231-2.dsc'
+  SUDO_GID=110
+  SUDO_UID=103
+  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 virt32a 6.1.0-32-armmp-lpae #1 SMP Debian 6.1.129-1 (2025-03-06) armv7l GNU/Linux
+  Linux i-capture-the-hostname 6.1.0-32-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 11:20 /bin -> usr/bin
-I: user script /srv/workspace/pbuilder/18307/tmp/hooks/D02_print_environment finished
+I: user script /srv/workspace/pbuilder/14604/tmp/hooks/D02_print_environment finished
  -> Attempting to satisfy build-dependencies
  -> Creating pbuilder-satisfydepends-dummy package
 Package: pbuilder-satisfydepends-dummy
@@ -134,7 +166,7 @@
 Get: 28 http://deb.debian.org/debian unstable/main armhf intltool-debian all 0.35.0+20060710.6 [22.9 kB]
 Get: 29 http://deb.debian.org/debian unstable/main armhf po-debconf all 1.0.21+nmu1 [248 kB]
 Get: 30 http://deb.debian.org/debian unstable/main armhf debhelper all 13.24.1 [920 kB]
-Fetched 20.1 MB in 0s (54.8 MB/s)
+Fetched 20.1 MB in 2s (9343 kB/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 ... 19530 files and directories currently installed.)
@@ -269,7 +301,11 @@
 Building tag database...
  -> Finished parsing the build-deps
 I: Building the package
-I: Running cd /build/reproducible-path/gnulib-l10n-0~20241231/ && 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  > ../gnulib-l10n_0~20241231-2_source.changes
+I: user script /srv/workspace/pbuilder/14604/tmp/hooks/A99_set_merged_usr starting
+Not re-configuring usrmerge for unstable
+I: user script /srv/workspace/pbuilder/14604/tmp/hooks/A99_set_merged_usr finished
+hostname: Name or service not known
+I: Running cd /build/reproducible-path/gnulib-l10n-0~20241231/ && 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  > ../gnulib-l10n_0~20241231-2_source.changes
 dpkg-buildpackage: info: source package gnulib-l10n
 dpkg-buildpackage: info: source version 0~20241231-2
 dpkg-buildpackage: info: source distribution unstable
@@ -295,8 +331,8 @@
 checking whether make sets $(MAKE)... yes
 checking whether make supports nested variables... yes
 checking xargs -n works... yes
-checking whether UID '1111' is supported by ustar format... yes
-checking whether GID '1111' is supported by ustar format... yes
+checking whether UID '2222' is supported by ustar format... yes
+checking whether GID '2222' is supported by ustar format... yes
 checking how to create a ustar tar archive... gnutar
 checking for a sed that does not truncate output... /usr/bin/sed
 checking whether NLS is requested... yes
@@ -341,7 +377,7 @@
 config.status: creating po/Makefile
 config.status: executing depfiles commands
    dh_auto_build -O--builddirectory=build
-	cd build && make -j3
+	cd build && make -j4
 make[1]: Entering directory '/build/reproducible-path/gnulib-l10n-0~20241231/build'
 Making all in m4
 make[2]: Entering directory '/build/reproducible-path/gnulib-l10n-0~20241231/build/m4'
@@ -356,7 +392,7 @@
 make[2]: Leaving directory '/build/reproducible-path/gnulib-l10n-0~20241231/build'
 make[1]: Leaving directory '/build/reproducible-path/gnulib-l10n-0~20241231/build'
    dh_auto_test -O--builddirectory=build
-	cd build && make -j3 check "TESTSUITEFLAGS=-j3 --verbose" VERBOSE=1
+	cd build && make -j4 check "TESTSUITEFLAGS=-j4 --verbose" VERBOSE=1
 make[1]: Entering directory '/build/reproducible-path/gnulib-l10n-0~20241231/build'
 Making check in m4
 make[2]: Entering directory '/build/reproducible-path/gnulib-l10n-0~20241231/build/m4'
@@ -374,7 +410,7 @@
    dh_testroot -O--builddirectory=build
    dh_prep -O--builddirectory=build
    dh_auto_install --destdir=debian/gnulib-l10n/ -O--builddirectory=build
-	cd build && make -j3 install DESTDIR=/build/reproducible-path/gnulib-l10n-0\~20241231/debian/gnulib-l10n AM_UPDATE_INFO_DIR=no
+	cd build && make -j4 install DESTDIR=/build/reproducible-path/gnulib-l10n-0\~20241231/debian/gnulib-l10n AM_UPDATE_INFO_DIR=no
 make[1]: Entering directory '/build/reproducible-path/gnulib-l10n-0~20241231/build'
 Making install in m4
 make[2]: Entering directory '/build/reproducible-path/gnulib-l10n-0~20241231/build/m4'
@@ -450,47 +486,47 @@
    dh_perl -O--builddirectory=build
    dh_link -O--builddirectory=build
    dh_strip_nondeterminism -O--builddirectory=build
-Garbage at end of string in strptime:  +02:00 at /usr/lib/arm-linux-gnueabihf/perl/5.40/Time/Piece.pm line 598.
-Perhaps a format flag did not match the actual input? at /usr/lib/arm-linux-gnueabihf/perl/5.40/Time/Piece.pm line 598.
-	Normalized debian/gnulib-l10n/usr/share/locale/sk/LC_MESSAGES/gnulib.mo
-	Normalized debian/gnulib-l10n/usr/share/locale/pl/LC_MESSAGES/gnulib.mo
 	Normalized debian/gnulib-l10n/usr/share/locale/sl/LC_MESSAGES/gnulib.mo
-	Normalized debian/gnulib-l10n/usr/share/locale/cs/LC_MESSAGES/gnulib.mo
-	Normalized debian/gnulib-l10n/usr/share/locale/sr/LC_MESSAGES/gnulib.mo
-	Normalized debian/gnulib-l10n/usr/share/locale/bg/LC_MESSAGES/gnulib.mo
-	Normalized debian/gnulib-l10n/usr/share/locale/fr/LC_MESSAGES/gnulib.mo
-	Normalized debian/gnulib-l10n/usr/share/locale/ja/LC_MESSAGES/gnulib.mo
-	Normalized debian/gnulib-l10n/usr/share/locale/nb/LC_MESSAGES/gnulib.mo
-	Normalized debian/gnulib-l10n/usr/share/locale/ru/LC_MESSAGES/gnulib.mo
-	Normalized debian/gnulib-l10n/usr/share/locale/rw/LC_MESSAGES/gnulib.mo
-	Normalized debian/gnulib-l10n/usr/share/locale/tr/LC_MESSAGES/gnulib.mo
-	Normalized debian/gnulib-l10n/usr/share/locale/pt_BR/LC_MESSAGES/gnulib.mo
 	Normalized debian/gnulib-l10n/usr/share/locale/zh_TW/LC_MESSAGES/gnulib.mo
-	Normalized debian/gnulib-l10n/usr/share/locale/fi/LC_MESSAGES/gnulib.mo
-	Normalized debian/gnulib-l10n/usr/share/locale/it/LC_MESSAGES/gnulib.mo
-	Normalized debian/gnulib-l10n/usr/share/locale/sv/LC_MESSAGES/gnulib.mo
-	Normalized debian/gnulib-l10n/usr/share/locale/et/LC_MESSAGES/gnulib.mo
+	Normalized debian/gnulib-l10n/usr/share/locale/ga/LC_MESSAGES/gnulib.mo
+	Normalized debian/gnulib-l10n/usr/share/locale/nb/LC_MESSAGES/gnulib.mo
 	Normalized debian/gnulib-l10n/usr/share/locale/eo/LC_MESSAGES/gnulib.mo
-	Normalized debian/gnulib-l10n/usr/share/locale/af/LC_MESSAGES/gnulib.mo
-	Normalized debian/gnulib-l10n/usr/share/locale/es/LC_MESSAGES/gnulib.mo
+	Normalized debian/gnulib-l10n/usr/share/locale/sr/LC_MESSAGES/gnulib.mo
+	Normalized debian/gnulib-l10n/usr/share/locale/et/LC_MESSAGES/gnulib.mo
+	Normalized debian/gnulib-l10n/usr/share/locale/ka/LC_MESSAGES/gnulib.mo
 	Normalized debian/gnulib-l10n/usr/share/locale/pt/LC_MESSAGES/gnulib.mo
-	Normalized debian/gnulib-l10n/usr/share/locale/hu/LC_MESSAGES/gnulib.mo
-	Normalized debian/gnulib-l10n/usr/share/locale/ca/LC_MESSAGES/gnulib.mo
-	Normalized debian/gnulib-l10n/usr/share/locale/vi/LC_MESSAGES/gnulib.mo
+	Normalized debian/gnulib-l10n/usr/share/locale/be/LC_MESSAGES/gnulib.mo
+	Normalized debian/gnulib-l10n/usr/share/locale/zh_CN/LC_MESSAGES/gnulib.mo
+	Normalized debian/gnulib-l10n/usr/share/locale/pt_BR/LC_MESSAGES/gnulib.mo
 	Normalized debian/gnulib-l10n/usr/share/locale/eu/LC_MESSAGES/gnulib.mo
-	Normalized debian/gnulib-l10n/usr/share/locale/ro/LC_MESSAGES/gnulib.mo
-	Normalized debian/gnulib-l10n/usr/share/locale/ko/LC_MESSAGES/gnulib.mo
-	Normalized debian/gnulib-l10n/usr/share/locale/ga/LC_MESSAGES/gnulib.mo
+	Normalized debian/gnulib-l10n/usr/share/locale/es/LC_MESSAGES/gnulib.mo
+	Normalized debian/gnulib-l10n/usr/share/locale/ru/LC_MESSAGES/gnulib.mo
 	Normalized debian/gnulib-l10n/usr/share/locale/da/LC_MESSAGES/gnulib.mo
-	Normalized debian/gnulib-l10n/usr/share/locale/de/LC_MESSAGES/gnulib.mo
-	Normalized debian/gnulib-l10n/usr/share/locale/ka/LC_MESSAGES/gnulib.mo
+	Normalized debian/gnulib-l10n/usr/share/locale/fr/LC_MESSAGES/gnulib.mo
+	Normalized debian/gnulib-l10n/usr/share/locale/af/LC_MESSAGES/gnulib.mo
+	Normalized debian/gnulib-l10n/usr/share/locale/uk/LC_MESSAGES/gnulib.mo
+	Normalized debian/gnulib-l10n/usr/share/locale/vi/LC_MESSAGES/gnulib.mo
+Garbage at end of string in strptime:  +02:00 at /usr/lib/arm-linux-gnueabihf/perl/5.40/Time/Piece.pm line 598.
+Perhaps a format flag did not match the actual input? at /usr/lib/arm-linux-gnueabihf/perl/5.40/Time/Piece.pm line 598.
 	Normalized debian/gnulib-l10n/usr/share/locale/ms/LC_MESSAGES/gnulib.mo
+	Normalized debian/gnulib-l10n/usr/share/locale/hu/LC_MESSAGES/gnulib.mo
+	Normalized debian/gnulib-l10n/usr/share/locale/ca/LC_MESSAGES/gnulib.mo
+	Normalized debian/gnulib-l10n/usr/share/locale/it/LC_MESSAGES/gnulib.mo
+	Normalized debian/gnulib-l10n/usr/share/locale/sk/LC_MESSAGES/gnulib.mo
+	Normalized debian/gnulib-l10n/usr/share/locale/gl/LC_MESSAGES/gnulib.mo
+	Normalized debian/gnulib-l10n/usr/share/locale/cs/LC_MESSAGES/gnulib.mo
 	Normalized debian/gnulib-l10n/usr/share/locale/nl/LC_MESSAGES/gnulib.mo
+	Normalized debian/gnulib-l10n/usr/share/locale/rw/LC_MESSAGES/gnulib.mo
 	Normalized debian/gnulib-l10n/usr/share/locale/el/LC_MESSAGES/gnulib.mo
-	Normalized debian/gnulib-l10n/usr/share/locale/zh_CN/LC_MESSAGES/gnulib.mo
-	Normalized debian/gnulib-l10n/usr/share/locale/uk/LC_MESSAGES/gnulib.mo
-	Normalized debian/gnulib-l10n/usr/share/locale/gl/LC_MESSAGES/gnulib.mo
-	Normalized debian/gnulib-l10n/usr/share/locale/be/LC_MESSAGES/gnulib.mo
+	Normalized debian/gnulib-l10n/usr/share/locale/ko/LC_MESSAGES/gnulib.mo
+	Normalized debian/gnulib-l10n/usr/share/locale/pl/LC_MESSAGES/gnulib.mo
+	Normalized debian/gnulib-l10n/usr/share/locale/bg/LC_MESSAGES/gnulib.mo
+	Normalized debian/gnulib-l10n/usr/share/locale/de/LC_MESSAGES/gnulib.mo
+	Normalized debian/gnulib-l10n/usr/share/locale/ja/LC_MESSAGES/gnulib.mo
+	Normalized debian/gnulib-l10n/usr/share/locale/ro/LC_MESSAGES/gnulib.mo
+	Normalized debian/gnulib-l10n/usr/share/locale/fi/LC_MESSAGES/gnulib.mo
+	Normalized debian/gnulib-l10n/usr/share/locale/sv/LC_MESSAGES/gnulib.mo
+	Normalized debian/gnulib-l10n/usr/share/locale/tr/LC_MESSAGES/gnulib.mo
    dh_compress -O--builddirectory=build
    dh_fixperms -O--builddirectory=build
    dh_missing -O--builddirectory=build
@@ -506,12 +542,14 @@
 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/14604/tmp/hooks/B01_cleanup starting
+I: user script /srv/workspace/pbuilder/14604/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/18307 and its subdirectories
-I: Current time: Thu Mar 20 22:21:15 -12 2025
-I: pbuilder-time-stamp: 1742552475
+I: removing directory /srv/workspace/pbuilder/14604 and its subdirectories
+I: Current time: Sat Mar 22 00:22:15 +14 2025
+I: pbuilder-time-stamp: 1742552535