Diff of the two buildlogs:

--
--- b1/build.log	2024-10-05 08:49:07.115177636 +0000
+++ b2/build.log	2024-10-05 08:51:35.316858663 +0000
@@ -1,6 +1,6 @@
 I: pbuilder: network access will be disabled during build
-I: Current time: Fri Oct  4 20:47:54 -12 2024
-I: pbuilder-time-stamp: 1728118074
+I: Current time: Sat Oct  5 22:49:16 +14 2024
+I: pbuilder-time-stamp: 1728118156
 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: unpacking relint-el_2.0+repack-1.debian.tar.xz
 I: Not using root during the build.
 I: Installing the build-deps
-I: user script /srv/workspace/pbuilder/22699/tmp/hooks/D02_print_environment starting
+I: user script /srv/workspace/pbuilder/24774/tmp/hooks/D01_modify_environment starting
+debug: Running on virt64a.
+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 Oct  5 08:49 /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/24774/tmp/hooks/D01_modify_environment finished
+I: user script /srv/workspace/pbuilder/24774/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='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]="32" [3]="1" [4]="release" [5]="arm-unknown-linux-gnueabihf")
+  BASH_VERSION='5.2.32(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='82a63b2d92ce4d209d98bc86948f945b'
-  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='22699'
-  PS1='# '
-  PS2='> '
+  INVOCATION_ID=36aad86d394c4633acb79f4f41ee4f11
+  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=24774
   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.XnBO4Sql/pbuilderrc_qlJR --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.XnBO4Sql/b1 --logfile b1/build.log relint-el_2.0+repack-1.dsc'
-  SUDO_GID='110'
-  SUDO_UID='103'
-  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.XnBO4Sql/pbuilderrc_cYIl --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.XnBO4Sql/b2 --logfile b2/build.log relint-el_2.0+repack-1.dsc'
+  SUDO_GID=114
+  SUDO_UID=108
+  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 virt32z 6.1.0-26-armmp-lpae #1 SMP Debian 6.1.112-1 (2024-09-30) armv7l GNU/Linux
+  Linux i-capture-the-hostname 6.1.0-26-arm64 #1 SMP Debian 6.1.112-1 (2024-09-30) aarch64 GNU/Linux
 I: ls -l /bin
   lrwxrwxrwx 1 root root 7 Aug  4 21:30 /bin -> usr/bin
-I: user script /srv/workspace/pbuilder/22699/tmp/hooks/D02_print_environment finished
+I: user script /srv/workspace/pbuilder/24774/tmp/hooks/D02_print_environment finished
  -> Attempting to satisfy build-dependencies
  -> Creating pbuilder-satisfydepends-dummy package
 Package: pbuilder-satisfydepends-dummy
@@ -202,7 +234,7 @@
 Get: 90 http://deb.debian.org/debian trixie/main armhf dh-elpa all 2.1.5 [29.7 kB]
 Get: 91 http://deb.debian.org/debian trixie/main armhf dh-elpa-helper all 2.1.5 [8320 B]
 Get: 92 http://deb.debian.org/debian trixie/main armhf elpa-xr all 2.0+repack-1 [26.8 kB]
-Fetched 72.2 MB in 1s (71.3 MB/s)
+Fetched 72.2 MB in 10s (7085 kB/s)
 debconf: delaying package configuration, since apt-utils is not installed
 Selecting previously unselected package install-info.
 (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 ... 19508 files and directories currently installed.)
@@ -605,7 +637,11 @@
 Building tag database...
  -> Finished parsing the build-deps
 I: Building the package
-I: Running cd /build/reproducible-path/relint-el-2.0+repack/ && 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  > ../relint-el_2.0+repack-1_source.changes
+I: user script /srv/workspace/pbuilder/24774/tmp/hooks/A99_set_merged_usr starting
+Not re-configuring usrmerge for trixie
+I: user script /srv/workspace/pbuilder/24774/tmp/hooks/A99_set_merged_usr finished
+hostname: Name or service not known
+I: Running cd /build/reproducible-path/relint-el-2.0+repack/ && 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  > ../relint-el_2.0+repack-1_source.changes
 dpkg-buildpackage: info: source package relint-el
 dpkg-buildpackage: info: source version 2.0+repack-1
 dpkg-buildpackage: info: source distribution unstable
@@ -622,30 +658,30 @@
    debian/rules override_dh_elpa_test
 make[1]: Entering directory '/build/reproducible-path/relint-el-2.0+repack'
 LC_ALL=C.UTF-8 dh_elpa_test
-	emacs -batch -Q -l package --eval "(add-to-list 'package-directory-list \"/usr/share/emacs/site-lisp/elpa\")" --eval "(add-to-list 'package-directory-list \"/usr/share/emacs/site-lisp/elpa-src\")" --eval "(setq ert-batch-backtrace-right-margin nil)" -f package-initialize -L . -L test -l relint.el -l relint-test.el --eval \(ert-run-tests-batch-and-exit\)
-Running 20 tests (2024-10-05 08:48:54+0000, selector ‘t’)
-   passed   1/20  relint-bad-hex-escape (0.000746 sec)
-   passed   2/20  relint-batch-highlight (0.002746 sec)
-   passed   3/20  relint-buffer (0.001882 sec)
-   passed   4/20  relint-buffer-huge (1.121794 sec)
-   passed   5/20  relint-check-file-1 (0.046635 sec)
-   passed   6/20  relint-check-file-10 (0.015571 sec)
-   passed   7/20  relint-check-file-11 (0.021238 sec)
-   passed   8/20  relint-check-file-12 (0.013910 sec)
-   passed   9/20  relint-check-file-13 (0.011124 sec)
-   passed  10/20  relint-check-file-14 (0.054827 sec)
-   passed  11/20  relint-check-file-2 (0.042013 sec)
-   passed  12/20  relint-check-file-3 (0.028021 sec)
-   passed  13/20  relint-check-file-4 (0.019489 sec)
-   passed  14/20  relint-check-file-5 (0.019054 sec)
-   passed  15/20  relint-check-file-6 (0.015600 sec)
-   passed  16/20  relint-check-file-7 (0.012832 sec)
-   passed  17/20  relint-check-file-8 (0.009551 sec)
-   passed  18/20  relint-check-file-9 (0.027835 sec)
-   passed  19/20  relint-find-pos (0.009976 sec)
-   passed  20/20  relint-xr-checks (0.001148 sec)
+	emacs -batch -Q -l package --eval "(add-to-list 'package-directory-list \"/usr/share/emacs/site-lisp/elpa\")" --eval "(add-to-list 'package-directory-list \"/usr/share/emacs/site-lisp/elpa-src\")" --eval "(setq ert-batch-backtrace-right-margin nil)" -f package-initialize -L . -L test -l relint-test.el -l relint.el --eval \(ert-run-tests-batch-and-exit\)
+Running 20 tests (2024-10-05 08:51:17+0000, selector ‘t’)
+   passed   1/20  relint-bad-hex-escape (0.001141 sec)
+   passed   2/20  relint-batch-highlight (0.004267 sec)
+   passed   3/20  relint-buffer (0.003118 sec)
+   passed   4/20  relint-buffer-huge (1.949481 sec)
+   passed   5/20  relint-check-file-1 (0.074990 sec)
+   passed   6/20  relint-check-file-10 (0.023229 sec)
+   passed   7/20  relint-check-file-11 (0.031810 sec)
+   passed   8/20  relint-check-file-12 (0.020260 sec)
+   passed   9/20  relint-check-file-13 (0.015954 sec)
+   passed  10/20  relint-check-file-14 (0.026172 sec)
+   passed  11/20  relint-check-file-2 (0.131994 sec)
+   passed  12/20  relint-check-file-3 (0.041488 sec)
+   passed  13/20  relint-check-file-4 (0.029287 sec)
+   passed  14/20  relint-check-file-5 (0.027740 sec)
+   passed  15/20  relint-check-file-6 (0.025030 sec)
+   passed  16/20  relint-check-file-7 (0.019966 sec)
+   passed  17/20  relint-check-file-8 (0.012659 sec)
+   passed  18/20  relint-check-file-9 (0.043104 sec)
+   passed  19/20  relint-find-pos (0.015385 sec)
+   passed  20/20  relint-xr-checks (0.001688 sec)
 
-Ran 20 tests, 20 results as expected, 0 unexpected (2024-10-05 08:48:56+0000, 1.484816 sec)
+Ran 20 tests, 20 results as expected, 0 unexpected (2024-10-05 08:51:20+0000, 2.516438 sec)
 
 make[1]: Leaving directory '/build/reproducible-path/relint-el-2.0+repack'
    create-stamp debian/debhelper-build-stamp
@@ -672,12 +708,14 @@
 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/24774/tmp/hooks/B01_cleanup starting
+I: user script /srv/workspace/pbuilder/24774/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/22699 and its subdirectories
-I: Current time: Fri Oct  4 20:49:03 -12 2024
-I: pbuilder-time-stamp: 1728118143
+I: removing directory /srv/workspace/pbuilder/24774 and its subdirectories
+I: Current time: Sat Oct  5 22:51:31 +14 2024
+I: pbuilder-time-stamp: 1728118291