Diff of the two buildlogs:

--
--- b1/build.log	2025-01-27 14:19:18.679746304 +0000
+++ b2/build.log	2025-01-27 14:24:40.977248038 +0000
@@ -1,6 +1,6 @@
 I: pbuilder: network access will be disabled during build
-I: Current time: Mon Jan 27 02:15:58 -12 2025
-I: pbuilder-time-stamp: 1737987358
+I: Current time: Mon Mar  2 10:42:21 +14 2026
+I: pbuilder-time-stamp: 1772397741
 I: Building the build Environment
 I: extracting base tarball [/var/cache/pbuilder/unstable-reproducible-base.tgz]
 I: copying local configuration
@@ -25,52 +25,84 @@
 dpkg-source: info: applying Patch-other-changed-APIs-for-pytime.patch
 I: Not using root during the build.
 I: Installing the build-deps
-I: user script /srv/workspace/pbuilder/189053/tmp/hooks/D02_print_environment starting
+I: user script /srv/workspace/pbuilder/673594/tmp/hooks/D01_modify_environment starting
+debug: Running on codethink03-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 Mar  1 20:42 /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/673594/tmp/hooks/D01_modify_environment finished
+I: user script /srv/workspace/pbuilder/673594/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='unstable'
-  HOME='/root'
-  HOST_ARCH='arm64'
+  DIRSTACK=()
+  DISTRIBUTION=unstable
+  EUID=0
+  FUNCNAME=([0]="Echo" [1]="main")
+  GROUPS=()
+  HOME=/root
+  HOSTNAME=i-capture-the-hostname
+  HOSTTYPE=aarch64
+  HOST_ARCH=arm64
   IFS=' 	
   '
-  INVOCATION_ID='694e9b9bb522412c99e8f846527d30ba'
-  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='189053'
-  PS1='# '
-  PS2='> '
+  INVOCATION_ID=f683b2e46379451aa943e994699489fd
+  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=673594
   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.E8bd6qnv/pbuilderrc_29bN --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.E8bd6qnv/b1 --logfile b1/build.log python-picologging_0.9.4-3.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.E8bd6qnv/pbuilderrc_mPlY --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.E8bd6qnv/b2 --logfile b2/build.log python-picologging_0.9.4-3.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 codethink04-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/189053/tmp/hooks/D02_print_environment finished
+  lrwxrwxrwx 1 root root 7 Nov 22  2024 /bin -> usr/bin
+I: user script /srv/workspace/pbuilder/673594/tmp/hooks/D02_print_environment finished
  -> Attempting to satisfy build-dependencies
  -> Creating pbuilder-satisfydepends-dummy package
 Package: pbuilder-satisfydepends-dummy
@@ -742,8 +774,8 @@
 Setting up tzdata (2025a-1) ...
 
 Current default time zone: 'Etc/UTC'
-Local time is now:      Mon Jan 27 14:16:51 UTC 2025.
-Universal Time is now:  Mon Jan 27 14:16:51 UTC 2025.
+Local time is now:      Sun Mar  1 20:43:25 UTC 2026.
+Universal Time is now:  Sun Mar  1 20:43:25 UTC 2026.
 Run 'dpkg-reconfigure tzdata' if you wish to change it.
 
 Setting up autotools-dev (20220109.1) ...
@@ -885,7 +917,11 @@
 Building tag database...
  -> Finished parsing the build-deps
 I: Building the package
-I: Running cd /build/reproducible-path/python-picologging-0.9.4/ && 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-picologging_0.9.4-3_source.changes
+I: user script /srv/workspace/pbuilder/673594/tmp/hooks/A99_set_merged_usr starting
+Not re-configuring usrmerge for unstable
+I: user script /srv/workspace/pbuilder/673594/tmp/hooks/A99_set_merged_usr finished
+hostname: Name or service not known
+I: Running cd /build/reproducible-path/python-picologging-0.9.4/ && 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-picologging_0.9.4-3_source.changes
 dpkg-buildpackage: info: source package python-picologging
 dpkg-buildpackage: info: source version 0.9.4-3
 dpkg-buildpackage: info: source distribution unstable
@@ -976,7 +1012,7 @@
 -- Check for working CXX compiler: /usr/bin/c++ - skipped
 -- Detecting CXX compile features
 -- Detecting CXX compile features - done
--- Configuring done (1.6s)
+-- Configuring done (1.9s)
 -- Generating done (0.0s)
 -- Build files have been written to: /build/reproducible-path/python-picologging-0.9.4/_cmake_test_compile/build
 --
@@ -1030,7 +1066,7 @@
 -- Found PythonLibs: /usr/lib/aarch64-linux-gnu/libpython3.12.so (found version "3.12.8")
 -- Performing Test Weak Link MODULE -> SHARED (gnu_ld_ignore) - Success
 _modinit_prefix:PyInit_
--- Configuring done (2.9s)
+-- Configuring done (3.8s)
 -- Generating done (0.0s)
 -- Build files have been written to: /build/reproducible-path/python-picologging-0.9.4/_skbuild/linux-aarch64-3.12/cmake-build
 gmake[1]: Entering directory '/build/reproducible-path/python-picologging-0.9.4/_skbuild/linux-aarch64-3.12/cmake-build'
@@ -1122,7 +1158,7 @@
 running install_scripts
 copied 0 files
 creating _skbuild/linux-aarch64-3.12/setuptools/bdist.linux-aarch64/wheel/picologging-0.9.4.dist-info/WHEEL
-creating '/build/reproducible-path/python-picologging-0.9.4/.pybuild/cpython3_3.12_picologging/.tmp-qnzcsdz8/picologging-0.9.4-cp312-cp312-linux_aarch64.whl' and adding '_skbuild/linux-aarch64-3.12/setuptools/bdist.linux-aarch64/wheel' to it
+creating '/build/reproducible-path/python-picologging-0.9.4/.pybuild/cpython3_3.12_picologging/.tmp-6ob0k5nq/picologging-0.9.4-cp312-cp312-linux_aarch64.whl' and adding '_skbuild/linux-aarch64-3.12/setuptools/bdist.linux-aarch64/wheel' to it
 adding 'picologging/__init__.py'
 adding 'picologging/__init__.pyi'
 adding 'picologging/_picologging.cpython-312-aarch64-linux-gnu.so'
@@ -1208,7 +1244,7 @@
 -- Check for working CXX compiler: /usr/bin/c++ - skipped
 -- Detecting CXX compile features
 -- Detecting CXX compile features - done
--- Configuring done (1.5s)
+-- Configuring done (2.0s)
 -- Generating done (0.0s)
 -- Build files have been written to: /build/reproducible-path/python-picologging-0.9.4/_cmake_test_compile/build
 --
@@ -1262,7 +1298,7 @@
 -- Found PythonLibs: /usr/lib/aarch64-linux-gnu/libpython3.13.so (found version "3.13.1")
 -- Performing Test Weak Link MODULE -> SHARED (gnu_ld_ignore) - Success
 _modinit_prefix:PyInit_
--- Configuring done (3.2s)
+-- Configuring done (3.8s)
 -- Generating done (0.0s)
 -- Build files have been written to: /build/reproducible-path/python-picologging-0.9.4/_skbuild/linux-aarch64-3.13/cmake-build
 gmake[1]: Entering directory '/build/reproducible-path/python-picologging-0.9.4/_skbuild/linux-aarch64-3.13/cmake-build'
@@ -1352,7 +1388,7 @@
 running install_scripts
 copied 0 files
 creating _skbuild/linux-aarch64-3.13/setuptools/bdist.linux-aarch64/wheel/picologging-0.9.4.dist-info/WHEEL
-creating '/build/reproducible-path/python-picologging-0.9.4/.pybuild/cpython3_3.13_picologging/.tmp-i48460k8/picologging-0.9.4-cp313-cp313-linux_aarch64.whl' and adding '_skbuild/linux-aarch64-3.13/setuptools/bdist.linux-aarch64/wheel' to it
+creating '/build/reproducible-path/python-picologging-0.9.4/.pybuild/cpython3_3.13_picologging/.tmp-0xo8c5ho/picologging-0.9.4-cp313-cp313-linux_aarch64.whl' and adding '_skbuild/linux-aarch64-3.13/setuptools/bdist.linux-aarch64/wheel' to it
 adding 'picologging/__init__.py'
 adding 'picologging/__init__.pyi'
 adding 'picologging/_picologging.cpython-313-aarch64-linux-gnu.so'
@@ -2190,7 +2226,7 @@
     @pytest.mark.limit_leaks("192B", filter_fn=filter_gc)
 
 -- Docs: https://docs.pytest.org/en/stable/how-to/capture-warnings.html
-================= 258 passed, 1 skipped, 198 warnings in 1.18s =================
+================= 258 passed, 1 skipped, 198 warnings in 2.05s =================
 I: pybuild base:311: cd /build/reproducible-path/python-picologging-0.9.4/.pybuild/cpython3_3.13_picologging/build; python3.13 -m pytest ""
 ============================= test session starts ==============================
 platform linux -- Python 3.13.1, pytest-8.3.4, pluggy-1.5.0
@@ -3011,7 +3047,7 @@
     @pytest.mark.limit_leaks("192B", filter_fn=filter_gc)
 
 -- Docs: https://docs.pytest.org/en/stable/how-to/capture-warnings.html
-================= 258 passed, 1 skipped, 198 warnings in 1.34s =================
+================= 258 passed, 1 skipped, 198 warnings in 2.31s =================
    create-stamp debian/debhelper-build-stamp
    dh_testroot -O--buildsystem=pybuild
    dh_prep -O--buildsystem=pybuild
@@ -3114,9 +3150,9 @@
 dpkg-gencontrol: warning: package python-picologging-doc: substitution variable ${sphinxdoc:Built-Using} unused, but is defined
    dh_md5sums -O--buildsystem=pybuild
    dh_builddeb -O--buildsystem=pybuild
+dpkg-deb: building package 'python3-picologging' in '../python3-picologging_0.9.4-3_arm64.deb'.
 dpkg-deb: building package 'python-picologging-doc' in '../python-picologging-doc_0.9.4-3_all.deb'.
 dpkg-deb: building package 'python3-picologging-dbgsym' in '../python3-picologging-dbgsym_0.9.4-3_arm64.deb'.
-dpkg-deb: building package 'python3-picologging' in '../python3-picologging_0.9.4-3_arm64.deb'.
  dpkg-genbuildinfo --build=binary -O../python-picologging_0.9.4-3_arm64.buildinfo
  dpkg-genchanges --build=binary -O../python-picologging_0.9.4-3_arm64.changes
 dpkg-genchanges: info: binary-only upload (no source code included)
@@ -3124,12 +3160,14 @@
 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/673594/tmp/hooks/B01_cleanup starting
+I: user script /srv/workspace/pbuilder/673594/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/189053 and its subdirectories
-I: Current time: Mon Jan 27 02:19:17 -12 2025
-I: pbuilder-time-stamp: 1737987557
+I: removing directory /srv/workspace/pbuilder/673594 and its subdirectories
+I: Current time: Mon Mar  2 10:47:39 +14 2026
+I: pbuilder-time-stamp: 1772398059