Diff of the two buildlogs:

--
--- b1/build.log	2025-01-23 06:51:49.746292732 +0000
+++ b2/build.log	2025-01-23 06:52:55.711324058 +0000
@@ -1,6 +1,6 @@
 I: pbuilder: network access will be disabled during build
-I: Current time: Wed Jan 22 18:50:50 -12 2025
-I: pbuilder-time-stamp: 1737615050
+I: Current time: Thu Feb 26 03:14:52 +14 2026
+I: pbuilder-time-stamp: 1772025292
 I: Building the build Environment
 I: extracting base tarball [/var/cache/pbuilder/trixie-reproducible-base.tgz]
 I: copying local configuration
@@ -24,52 +24,84 @@
 dpkg-source: info: applying docs-Remove-Pylons-sphinx-theme.patch
 I: Not using root during the build.
 I: Installing the build-deps
-I: user script /srv/workspace/pbuilder/3172215/tmp/hooks/D02_print_environment starting
+I: user script /srv/workspace/pbuilder/1770288/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 Feb 25 13:14 /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/1770288/tmp/hooks/D01_modify_environment finished
+I: user script /srv/workspace/pbuilder/1770288/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='82b833fbcb9d41e2902e240af0a49976'
-  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='3172215'
-  PS1='# '
-  PS2='> '
+  INVOCATION_ID=7412c753c64649dfbac6ed7b1523b882
+  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=1770288
   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.PyQEuzfy/pbuilderrc_8BUK --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.PyQEuzfy/b1 --logfile b1/build.log python-plaster_1.1.2-1.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.PyQEuzfy/pbuilderrc_LNEP --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.PyQEuzfy/b2 --logfile b2/build.log python-plaster_1.1.2-1.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/3172215/tmp/hooks/D02_print_environment finished
+  lrwxrwxrwx 1 root root 7 Nov 22  2024 /bin -> usr/bin
+I: user script /srv/workspace/pbuilder/1770288/tmp/hooks/D02_print_environment finished
  -> Attempting to satisfy build-dependencies
  -> Creating pbuilder-satisfydepends-dummy package
 Package: pbuilder-satisfydepends-dummy
@@ -231,7 +263,7 @@
 Get: 108 http://deb.debian.org/debian trixie/main arm64 python3-snowballstemmer all 2.2.0-4 [58.0 kB]
 Get: 109 http://deb.debian.org/debian trixie/main arm64 sphinx-common all 8.1.3-4 [616 kB]
 Get: 110 http://deb.debian.org/debian trixie/main arm64 python3-sphinx all 8.1.3-4 [468 kB]
-Fetched 45.5 MB in 0s (171 MB/s)
+Fetched 45.5 MB in 0s (175 MB/s)
 Preconfiguring packages ...
 Selecting previously unselected package libpython3.12-minimal:arm64.
 (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.)
@@ -596,8 +628,8 @@
 Setting up tzdata (2024b-6) ...
 
 Current default time zone: 'Etc/UTC'
-Local time is now:      Thu Jan 23 06:51:11 UTC 2025.
-Universal Time is now:  Thu Jan 23 06:51:11 UTC 2025.
+Local time is now:      Wed Feb 25 13:15:11 UTC 2026.
+Universal Time is now:  Wed Feb 25 13:15:11 UTC 2026.
 Run 'dpkg-reconfigure tzdata' if you wish to change it.
 
 Setting up libpython3.13-minimal:arm64 (3.13.1-3) ...
@@ -712,7 +744,11 @@
 Building tag database...
  -> Finished parsing the build-deps
 I: Building the package
-I: Running cd /build/reproducible-path/python-plaster-1.1.2/ && 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-plaster_1.1.2-1_source.changes
+I: user script /srv/workspace/pbuilder/1770288/tmp/hooks/A99_set_merged_usr starting
+Not re-configuring usrmerge for trixie
+I: user script /srv/workspace/pbuilder/1770288/tmp/hooks/A99_set_merged_usr finished
+hostname: Name or service not known
+I: Running cd /build/reproducible-path/python-plaster-1.1.2/ && 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-plaster_1.1.2-1_source.changes
 dpkg-buildpackage: info: source package python-plaster
 dpkg-buildpackage: info: source version 1.1.2-1
 dpkg-buildpackage: info: source distribution unstable
@@ -749,8 +785,8 @@
         Please discontinue using this option, or if you still need it,
         file an issue with pypa/setuptools describing your use case.
 
-        By 2025-Aug-30, you need to update your project and remove deprecated calls
-        or your builds will no longer be supported.
+        This deprecation is overdue, please update your project and remove deprecated
+        calls to avoid build errors in the future.
         ********************************************************************************
 
 !!
@@ -793,7 +829,7 @@
 Copying src/plaster.egg-info to build/bdist.linux-aarch64/wheel/./plaster-1.1.2.egg-info
 running install_scripts
 creating build/bdist.linux-aarch64/wheel/plaster-1.1.2.dist-info/WHEEL
-creating '/build/reproducible-path/python-plaster-1.1.2/.pybuild/cpython3_3.13_plaster/.tmp-5n9d1q8i/plaster-1.1.2-py2.py3-none-any.whl' and adding 'build/bdist.linux-aarch64/wheel' to it
+creating '/build/reproducible-path/python-plaster-1.1.2/.pybuild/cpython3_3.13_plaster/.tmp-kpo90e87/plaster-1.1.2-py2.py3-none-any.whl' and adding 'build/bdist.linux-aarch64/wheel' to it
 adding 'plaster/__init__.py'
 adding 'plaster/exceptions.py'
 adding 'plaster/interfaces.py'
@@ -823,8 +859,8 @@
         Please discontinue using this option, or if you still need it,
         file an issue with pypa/setuptools describing your use case.
 
-        By 2025-Aug-30, you need to update your project and remove deprecated calls
-        or your builds will no longer be supported.
+        This deprecation is overdue, please update your project and remove deprecated
+        calls to avoid build errors in the future.
         ********************************************************************************
 
 !!
@@ -858,7 +894,7 @@
 Copying src/plaster.egg-info to build/bdist.linux-aarch64/wheel/./plaster-1.1.2.egg-info
 running install_scripts
 creating build/bdist.linux-aarch64/wheel/plaster-1.1.2.dist-info/WHEEL
-creating '/build/reproducible-path/python-plaster-1.1.2/.pybuild/cpython3_3.12_plaster/.tmp-vwf6m8aw/plaster-1.1.2-py2.py3-none-any.whl' and adding 'build/bdist.linux-aarch64/wheel' to it
+creating '/build/reproducible-path/python-plaster-1.1.2/.pybuild/cpython3_3.12_plaster/.tmp-4ggt_a5g/plaster-1.1.2-py2.py3-none-any.whl' and adding 'build/bdist.linux-aarch64/wheel' to it
 adding 'plaster/__init__.py'
 adding 'plaster/exceptions.py'
 adding 'plaster/interfaces.py'
@@ -909,7 +945,7 @@
 tests/test_protocols.py .                                                [ 75%]
 tests/test_uri.py ..............                                         [100%]
 
-============================== 57 passed in 0.49s ==============================
+============================== 57 passed in 0.48s ==============================
 I: pybuild base:311: cd /build/reproducible-path/python-plaster-1.1.2/.pybuild/cpython3_3.12_plaster/build; python3.12 -m pytest tests
 ============================= test session starts ==============================
 platform linux -- Python 3.12.8, pytest-8.3.4, pluggy-1.5.0
@@ -923,7 +959,7 @@
 tests/test_protocols.py .                                                [ 75%]
 tests/test_uri.py ..............                                         [100%]
 
-============================== 57 passed in 0.51s ==============================
+============================== 57 passed in 0.53s ==============================
 make[1]: Leaving directory '/build/reproducible-path/python-plaster-1.1.2'
    create-stamp debian/debhelper-build-stamp
    dh_testroot -O--buildsystem=pybuild
@@ -1008,12 +1044,14 @@
 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/1770288/tmp/hooks/B01_cleanup starting
+I: user script /srv/workspace/pbuilder/1770288/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/3172215 and its subdirectories
-I: Current time: Wed Jan 22 18:51:48 -12 2025
-I: pbuilder-time-stamp: 1737615108
+I: removing directory /srv/workspace/pbuilder/1770288 and its subdirectories
+I: Current time: Thu Feb 26 03:15:54 +14 2026
+I: pbuilder-time-stamp: 1772025354