Diff of the two buildlogs:

--
--- b1/build.log	2025-04-01 09:28:16.661387848 +0000
+++ b2/build.log	2025-04-01 09:29:53.269051588 +0000
@@ -1,6 +1,6 @@
 I: pbuilder: network access will be disabled during build
-I: Current time: Mon May  4 03:50:16 -12 2026
-I: pbuilder-time-stamp: 1777909816
+I: Current time: Tue Apr  1 23:28:19 +14 2025
+I: pbuilder-time-stamp: 1743499699
 I: Building the build Environment
 I: extracting base tarball [/var/cache/pbuilder/unstable-reproducible-base.tgz]
 I: copying local configuration
@@ -27,54 +27,86 @@
 dpkg-source: info: applying intersphinx-mapping-local.patch
 I: Not using root during the build.
 I: Installing the build-deps
-I: user script /srv/workspace/pbuilder/29653/tmp/hooks/D02_print_environment starting
+I: user script /srv/workspace/pbuilder/56540/tmp/hooks/D01_modify_environment starting
+debug: Running on ionos12-i386.
+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 Apr  1 09:28 /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/56540/tmp/hooks/D01_modify_environment finished
+I: user script /srv/workspace/pbuilder/56540/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='i386'
-  DEBIAN_FRONTEND='noninteractive'
-  DEB_BUILD_OPTIONS='buildinfo=+all reproducible=+all parallel=22 '
-  DISTRIBUTION='unstable'
-  HOME='/root'
-  HOST_ARCH='i386'
+  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]="i686-pc-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=i386
+  DEBIAN_FRONTEND=noninteractive
+  DEB_BUILD_OPTIONS='buildinfo=+all reproducible=+all parallel=10 '
+  DIRSTACK=()
+  DISTRIBUTION=unstable
+  EUID=0
+  FUNCNAME=([0]="Echo" [1]="main")
+  GROUPS=()
+  HOME=/root
+  HOSTNAME=i-capture-the-hostname
+  HOSTTYPE=i686
+  HOST_ARCH=i386
   IFS=' 	
   '
-  INVOCATION_ID='ca59e024818b4e14a161cf548cd9a87e'
-  LANG='C'
-  LANGUAGE='en_US:en'
-  LC_ALL='C'
-  LD_LIBRARY_PATH='/usr/lib/libeatmydata'
-  LD_PRELOAD='libeatmydata.so'
-  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='29653'
-  PS1='# '
-  PS2='> '
+  INVOCATION_ID=294a04a2b27b49ea951662e035e167ca
+  LANG=C
+  LANGUAGE=de_CH:de
+  LC_ALL=C
+  LD_LIBRARY_PATH=/usr/lib/libeatmydata
+  LD_PRELOAD=libeatmydata.so
+  MACHTYPE=i686-pc-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=56540
   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.24Xtol1C/pbuilderrc_0pgg --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.24Xtol1C/b1 --logfile b1/build.log tox_4.25.0-1.dsc'
-  SUDO_GID='112'
-  SUDO_UID='107'
-  SUDO_USER='jenkins'
-  TERM='unknown'
-  TZ='/usr/share/zoneinfo/Etc/GMT+12'
-  USER='root'
-  _='/usr/bin/systemd-run'
-  http_proxy='http://213.165.73.152:3128'
+  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.24Xtol1C/pbuilderrc_tgr6 --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.24Xtol1C/b2 --logfile b2/build.log tox_4.25.0-1.dsc'
+  SUDO_GID=112
+  SUDO_UID=107
+  SUDO_USER=jenkins
+  TERM=unknown
+  TZ=/usr/share/zoneinfo/Etc/GMT-14
+  UID=0
+  USER=root
+  _='I: set'
+  http_proxy=http://46.16.76.132:3128
 I: uname -a
-  Linux ionos16-i386 6.1.0-32-amd64 #1 SMP PREEMPT_DYNAMIC Debian 6.1.129-1 (2025-03-06) x86_64 GNU/Linux
+  Linux i-capture-the-hostname 6.1.0-32-amd64 #1 SMP PREEMPT_DYNAMIC Debian 6.1.129-1 (2025-03-06) x86_64 GNU/Linux
 I: ls -l /bin
-  lrwxrwxrwx 1 root root 7 Mar  4  2025 /bin -> usr/bin
-I: user script /srv/workspace/pbuilder/29653/tmp/hooks/D02_print_environment finished
+  lrwxrwxrwx 1 root root 7 Mar  4 11:20 /bin -> usr/bin
+I: user script /srv/workspace/pbuilder/56540/tmp/hooks/D02_print_environment finished
  -> Attempting to satisfy build-dependencies
  -> Creating pbuilder-satisfydepends-dummy package
 Package: pbuilder-satisfydepends-dummy
@@ -275,7 +307,7 @@
 Get: 117 http://deb.debian.org/debian unstable/main i386 python3-wheel-whl all 0.45.1-1 [75.3 kB]
 Get: 118 http://deb.debian.org/debian unstable/main i386 python3-virtualenv all 20.29.3+ds-1 [71.8 kB]
 Get: 119 http://deb.debian.org/debian unstable/main i386 towncrier all 24.8.0-2 [57.2 kB]
-Fetched 50.3 MB in 1s (71.9 MB/s)
+Fetched 50.3 MB in 1s (79.9 MB/s)
 Preconfiguring packages ...
 Selecting previously unselected package libpython3.13-minimal:i386.
 (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 ... 19790 files and directories currently installed.)
@@ -661,8 +693,8 @@
 Setting up tzdata (2025b-1) ...
 
 Current default time zone: 'Etc/UTC'
-Local time is now:      Mon May  4 15:50:38 UTC 2026.
-Universal Time is now:  Mon May  4 15:50:38 UTC 2026.
+Local time is now:      Tue Apr  1 09:28:52 UTC 2025.
+Universal Time is now:  Tue Apr  1 09:28:52 UTC 2025.
 Run 'dpkg-reconfigure tzdata' if you wish to change it.
 
 Setting up autotools-dev (20240727.1) ...
@@ -788,7 +820,11 @@
 Building tag database...
  -> Finished parsing the build-deps
 I: Building the package
-I: Running cd /build/reproducible-path/tox-4.25.0/ && 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  > ../tox_4.25.0-1_source.changes
+I: user script /srv/workspace/pbuilder/56540/tmp/hooks/A99_set_merged_usr starting
+Not re-configuring usrmerge for unstable
+I: user script /srv/workspace/pbuilder/56540/tmp/hooks/A99_set_merged_usr finished
+hostname: Name or service not known
+I: Running cd /build/reproducible-path/tox-4.25.0/ && 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  > ../tox_4.25.0-1_source.changes
 dpkg-buildpackage: info: source package tox
 dpkg-buildpackage: info: source version 4.25.0-1
 dpkg-buildpackage: info: source distribution unstable
@@ -823,7 +859,7 @@
 loading intersphinx inventory 'python' from /usr/share/doc/python3-doc/html/objects.inv ...
 loading intersphinx inventory 'packaging' from https://packaging.pypa.io/en/latest/objects.inv ...
 WARNING: failed to reach any of the inventories with the following issues:
-intersphinx inventory 'https://packaging.pypa.io/en/latest/objects.inv' not fetchable due to <class 'requests.exceptions.ProxyError'>: HTTPSConnectionPool(host='packaging.pypa.io', port=443): Max retries exceeded with url: /en/latest/objects.inv (Caused by ProxyError('Unable to connect to proxy', NewConnectionError('<urllib3.connection.HTTPSConnection object at 0xf596c8d0>: Failed to establish a new connection: [Errno 111] Connection refused')))
+intersphinx inventory 'https://packaging.pypa.io/en/latest/objects.inv' not fetchable due to <class 'requests.exceptions.ProxyError'>: HTTPSConnectionPool(host='packaging.pypa.io', port=443): Max retries exceeded with url: /en/latest/objects.inv (Caused by ProxyError('Unable to connect to proxy', NewConnectionError('<urllib3.connection.HTTPSConnection object at 0xf58d68d0>: Failed to establish a new connection: [Errno 111] Connection refused')))
 building [mo]: targets for 0 po files that are out of date
 writing output... 
 building [html]: targets for 12 source files that are out of date
@@ -848,9 +884,9 @@
 preparing documents... done
 copying assets... 
 copying static files... 
-Writing evaluated template result to /build/reproducible-path/tox-4.25.0/build/html/_static/basic.css
 Writing evaluated template result to /build/reproducible-path/tox-4.25.0/build/html/_static/language_data.js
 Writing evaluated template result to /build/reproducible-path/tox-4.25.0/build/html/_static/documentation_options.js
+Writing evaluated template result to /build/reproducible-path/tox-4.25.0/build/html/_static/basic.css
 Writing evaluated template result to /build/reproducible-path/tox-4.25.0/build/html/_static/copybutton.js
 copying static files: done
 copying extra files... 
@@ -896,7 +932,7 @@
 loading intersphinx inventory 'python' from /usr/share/doc/python3-doc/html/objects.inv ...
 loading intersphinx inventory 'packaging' from https://packaging.pypa.io/en/latest/objects.inv ...
 WARNING: failed to reach any of the inventories with the following issues:
-intersphinx inventory 'https://packaging.pypa.io/en/latest/objects.inv' not fetchable due to <class 'requests.exceptions.ProxyError'>: HTTPSConnectionPool(host='packaging.pypa.io', port=443): Max retries exceeded with url: /en/latest/objects.inv (Caused by ProxyError('Unable to connect to proxy', NewConnectionError('<urllib3.connection.HTTPSConnection object at 0xf5a6daf8>: Failed to establish a new connection: [Errno 111] Connection refused')))
+intersphinx inventory 'https://packaging.pypa.io/en/latest/objects.inv' not fetchable due to <class 'requests.exceptions.ProxyError'>: HTTPSConnectionPool(host='packaging.pypa.io', port=443): Max retries exceeded with url: /en/latest/objects.inv (Caused by ProxyError('Unable to connect to proxy', NewConnectionError('<urllib3.connection.HTTPSConnection object at 0xf5a05af8>: Failed to establish a new connection: [Errno 111] Connection refused')))
 building [mo]: targets for 0 po files that are out of date
 writing output... 
 building [man]: all manpages
@@ -934,10 +970,10 @@
 I: pybuild plugin_pyproject:178: Copying package built for python3.13 to destdir
    dh_installdocs -O--buildsystem=pybuild
    dh_sphinxdoc -O--buildsystem=pybuild
-dh_sphinxdoc: warning: ignoring unknown JavaScript code: debian/tox/usr/share/doc/tox/html/_static/copybutton_funcs.js
-dh_sphinxdoc: warning: ignoring unknown JavaScript code: debian/tox/usr/share/doc/tox/html/_static/tabs.js
 dh_sphinxdoc: warning: ignoring unknown JavaScript code: debian/tox/usr/share/doc/tox/html/_static/copybutton.js
 dh_sphinxdoc: warning: ignoring unknown JavaScript code: debian/tox/usr/share/doc/tox/html/_static/clipboard.min.js
+dh_sphinxdoc: warning: ignoring unknown JavaScript code: debian/tox/usr/share/doc/tox/html/_static/copybutton_funcs.js
+dh_sphinxdoc: warning: ignoring unknown JavaScript code: debian/tox/usr/share/doc/tox/html/_static/tabs.js
    dh_installchangelogs -O--buildsystem=pybuild
    dh_installman -O--buildsystem=pybuild
    dh_python3 -O--buildsystem=pybuild
@@ -961,12 +997,14 @@
 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/56540/tmp/hooks/B01_cleanup starting
+I: user script /srv/workspace/pbuilder/56540/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/29653 and its subdirectories
-I: Current time: Mon May  4 03:51:15 -12 2026
-I: pbuilder-time-stamp: 1777909875
+I: removing directory /srv/workspace/pbuilder/56540 and its subdirectories
+I: Current time: Tue Apr  1 23:29:52 +14 2025
+I: pbuilder-time-stamp: 1743499792