Diff of the two buildlogs:

--
--- b1/build.log	2023-04-21 16:05:13.883420646 +0000
+++ b2/build.log	2023-04-21 16:07:03.786546524 +0000
@@ -1,6 +1,6 @@
 I: pbuilder: network access will be disabled during build
-I: Current time: Fri Apr 21 04:03:35 -12 2023
-I: pbuilder-time-stamp: 1682093015
+I: Current time: Fri May 24 12:28:17 +14 2024
+I: pbuilder-time-stamp: 1716503297
 I: Building the build Environment
 I: extracting base tarball [/var/cache/pbuilder/bookworm-reproducible-base.tgz]
 I: copying local configuration
@@ -16,7 +16,7 @@
 I: copying [./python-executing_1.2.0.orig.tar.gz]
 I: copying [./python-executing_1.2.0-2.debian.tar.xz]
 I: Extracting source
-gpgv: Signature made Tue Dec 20 09:26:58 2022 -12
+gpgv: Signature made Wed Dec 21 11:26:58 2022 +14
 gpgv:                using RSA key 73B299CBD4EEADDCC017E87A5BFFDCC258E69433
 gpgv: Can't check signature: No public key
 dpkg-source: warning: cannot verify inline signature for ./python-executing_1.2.0-2.dsc: no acceptable signature found
@@ -25,52 +25,84 @@
 dpkg-source: info: unpacking python-executing_1.2.0-2.debian.tar.xz
 I: Not using root during the build.
 I: Installing the build-deps
-I: user script /srv/workspace/pbuilder/19573/tmp/hooks/D02_print_environment starting
+I: user script /srv/workspace/pbuilder/5749/tmp/hooks/D01_modify_environment starting
+debug: Running on codethink15-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 May 24 12:28 /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/5749/tmp/hooks/D01_modify_environment finished
+I: user script /srv/workspace/pbuilder/5749/tmp/hooks/D02_print_environment starting
 I: set
-  BUILDDIR='/build'
-  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]="15" [3]="1" [4]="release" [5]="aarch64-unknown-linux-gnu")
+  BASH_VERSION='5.2.15(1)-release'
+  BUILDDIR=/build
+  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=8'
-  DISTRIBUTION='bookworm'
-  HOME='/var/lib/jenkins'
-  HOST_ARCH='arm64'
+  DIRSTACK=()
+  DISTRIBUTION=bookworm
+  EUID=0
+  FUNCNAME=([0]="Echo" [1]="main")
+  GROUPS=()
+  HOME=/var/lib/jenkins
+  HOSTNAME=i-capture-the-hostname
+  HOSTTYPE=aarch64
+  HOST_ARCH=arm64
   IFS=' 	
   '
-  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='19573'
-  PS1='# '
-  PS2='> '
+  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=5749
   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.BSJVxjwn/pbuilderrc_seES --distribution bookworm --hookdir /etc/pbuilder/first-build-hooks --debbuildopts -b --basetgz /var/cache/pbuilder/bookworm-reproducible-base.tgz --buildresult /srv/reproducible-results/rbuild-debian/r-b-build.BSJVxjwn/b1 --logfile b1/build.log python-executing_1.2.0-2.dsc'
-  SUDO_GID='117'
-  SUDO_UID='110'
-  SUDO_USER='jenkins'
-  TERM='unknown'
-  TZ='/usr/share/zoneinfo/Etc/GMT+12'
-  USER='root'
-  USERNAME='root'
-  _='/usr/bin/systemd-run'
-  http_proxy='http://192.168.101.16:3128'
+  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.BSJVxjwn/pbuilderrc_mfaD --distribution bookworm --hookdir /etc/pbuilder/rebuild-hooks --debbuildopts -b --basetgz /var/cache/pbuilder/bookworm-reproducible-base.tgz --buildresult /srv/reproducible-results/rbuild-debian/r-b-build.BSJVxjwn/b2 --logfile b2/build.log --extrapackages usrmerge python-executing_1.2.0-2.dsc'
+  SUDO_GID=117
+  SUDO_UID=110
+  SUDO_USER=jenkins
+  TERM=unknown
+  TZ=/usr/share/zoneinfo/Etc/GMT-14
+  UID=0
+  USER=root
+  USERNAME=root
+  _='I: set'
+  http_proxy=http://192.168.101.16:3128
 I: uname -a
-  Linux codethink14-arm64 4.15.0-209-generic #220-Ubuntu SMP Tue Mar 21 19:52:44 UTC 2023 aarch64 GNU/Linux
+  Linux i-capture-the-hostname 4.15.0-209-generic #220-Ubuntu SMP Tue Mar 21 19:52:44 UTC 2023 aarch64 GNU/Linux
 I: ls -l /bin
-  lrwxrwxrwx 1 root root 7 Apr 18 22:25 /bin -> usr/bin
-I: user script /srv/workspace/pbuilder/19573/tmp/hooks/D02_print_environment finished
+  lrwxrwxrwx 1 root root 7 May 22 06:47 /bin -> usr/bin
+I: user script /srv/workspace/pbuilder/5749/tmp/hooks/D02_print_environment finished
  -> Attempting to satisfy build-dependencies
  -> Creating pbuilder-satisfydepends-dummy package
 Package: pbuilder-satisfydepends-dummy
@@ -194,7 +226,7 @@
 Get: 66 http://deb.debian.org/debian bookworm/main arm64 python3-pytest all 7.2.1-2 [236 kB]
 Get: 67 http://deb.debian.org/debian bookworm/main arm64 python3-setuptools all 66.1.1-1 [521 kB]
 Get: 68 http://deb.debian.org/debian bookworm/main arm64 python3-setuptools-scm all 7.1.0-3 [42.6 kB]
-Fetched 25.6 MB in 1s (21.9 MB/s)
+Fetched 25.6 MB in 2s (12.8 MB/s)
 debconf: delaying package configuration, since apt-utils is not installed
 Selecting previously unselected package libpython3.11-minimal:arm64.
 (Reading database ... 
(Reading database ... 5%
(Reading database ... 10%
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(Reading database ... 20%
(Reading database ... 25%
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(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 ... 19616 files and directories currently installed.)
@@ -482,8 +514,17 @@
 Writing extended state information...
 Building tag database...
  -> Finished parsing the build-deps
+Reading package lists...
+Building dependency tree...
+Reading state information...
+usrmerge is already the newest version (35).
+0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
 I: Building the package
-I: Running cd /build/python-executing-1.2.0/ && 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  > ../python-executing_1.2.0-2_source.changes
+I: user script /srv/workspace/pbuilder/5749/tmp/hooks/A99_set_merged_usr starting
+Re-configuring usrmerge...
+I: user script /srv/workspace/pbuilder/5749/tmp/hooks/A99_set_merged_usr finished
+hostname: Temporary failure in name resolution
+I: Running cd /build/python-executing-1.2.0/ && 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  > ../python-executing_1.2.0-2_source.changes
 dpkg-buildpackage: info: source package python-executing
 dpkg-buildpackage: info: source version 1.2.0-2
 dpkg-buildpackage: info: source distribution unstable
@@ -543,7 +584,7 @@
 Copying executing.egg-info to build/bdist.linux-arm64/wheel/executing-1.2.0.egg-info
 running install_scripts
 creating build/bdist.linux-arm64/wheel/executing-1.2.0.dist-info/WHEEL
-creating '/build/python-executing-1.2.0/.pybuild/cpython3_3.11/.tmp-h87nl06e/executing-1.2.0-py2.py3-none-any.whl' and adding 'build/bdist.linux-arm64/wheel' to it
+creating '/build/python-executing-1.2.0/.pybuild/cpython3_3.11/.tmp-um4zc30b/executing-1.2.0-py2.py3-none-any.whl' and adding 'build/bdist.linux-arm64/wheel' to it
 adding 'executing/__init__.py'
 adding 'executing/_exceptions.py'
 adding 'executing/_position_node_finder.py'
@@ -568,7 +609,7 @@
 tests/test_main.py ................................sssssssssssssss.      [ 80%]
 tests/test_pytest.py ............                                        [100%]
 
-======================= 45 passed, 15 skipped in 16.06s ========================
+======================= 45 passed, 15 skipped in 16.10s ========================
    create-stamp debian/debhelper-build-stamp
    dh_testroot -O--buildsystem=pybuild
    dh_prep -O--buildsystem=pybuild
@@ -598,12 +639,14 @@
 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/5749/tmp/hooks/B01_cleanup starting
+I: user script /srv/workspace/pbuilder/5749/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/19573 and its subdirectories
-I: Current time: Fri Apr 21 04:05:12 -12 2023
-I: pbuilder-time-stamp: 1682093112
+I: removing directory /srv/workspace/pbuilder/5749 and its subdirectories
+I: Current time: Fri May 24 12:30:02 +14 2024
+I: pbuilder-time-stamp: 1716503402