Diff of the two buildlogs:

--
--- b1/build.log	2025-09-24 22:10:22.223831271 +0000
+++ b2/build.log	2025-09-24 22:11:24.647904526 +0000
@@ -1,6 +1,6 @@
 I: pbuilder: network access will be disabled during build
-I: Current time: Wed Sep 24 10:09:24 -12 2025
-I: pbuilder-time-stamp: 1758751764
+I: Current time: Wed Oct 28 18:33:24 +14 2026
+I: pbuilder-time-stamp: 1793162004
 I: Building the build Environment
 I: extracting base tarball [/var/cache/pbuilder/forky-reproducible-base.tgz]
 I: copying local configuration
@@ -22,53 +22,85 @@
 dpkg-source: info: unpacking rope_1.13.0-4.debian.tar.xz
 I: Not using root during the build.
 I: Installing the build-deps
-I: user script /srv/workspace/pbuilder/585569/tmp/hooks/D02_print_environment starting
+I: user script /srv/workspace/pbuilder/2573505/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 Oct 28 04:33 /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/2573505/tmp/hooks/D01_modify_environment finished
+I: user script /srv/workspace/pbuilder/2573505/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]="3" [2]="3" [3]="1" [4]="release" [5]="aarch64-unknown-linux-gnu")
+  BASH_VERSION='5.3.3(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='forky'
-  HOME='/root'
-  HOST_ARCH='arm64'
+  DIRSTACK=()
+  DISTRIBUTION=forky
+  EUID=0
+  FUNCNAME=([0]="Echo" [1]="main")
+  GROUPS=()
+  HOME=/root
+  HOSTNAME=i-capture-the-hostname
+  HOSTTYPE=aarch64
+  HOST_ARCH=arm64
   IFS=' 	
   '
-  INVOCATION_ID='a41732f2f74f4f8d8c44970d776fbcca'
-  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='585569'
-  PS1='# '
-  PS2='> '
+  INVOCATION_ID=2910ff6a4d9b46e8a61d4c95c499b3d6
+  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=2573505
   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.46wXLBIG/pbuilderrc_oW76 --distribution forky --hookdir /etc/pbuilder/first-build-hooks --debbuildopts -b --basetgz /var/cache/pbuilder/forky-reproducible-base.tgz --buildresult /srv/reproducible-results/rbuild-debian/r-b-build.46wXLBIG/b1 --logfile b1/build.log rope_1.13.0-4.dsc'
-  SUDO_GID='109'
-  SUDO_HOME='/var/lib/jenkins'
-  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.46wXLBIG/pbuilderrc_vMoO --distribution forky --hookdir /etc/pbuilder/rebuild-hooks --debbuildopts -b --basetgz /var/cache/pbuilder/forky-reproducible-base.tgz --buildresult /srv/reproducible-results/rbuild-debian/r-b-build.46wXLBIG/b2 --logfile b2/build.log rope_1.13.0-4.dsc'
+  SUDO_GID=109
+  SUDO_HOME=/var/lib/jenkins
+  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 6.12.48+deb13-cloud-arm64 #1 SMP Debian 6.12.48-1 (2025-09-20) aarch64 GNU/Linux
+  Linux i-capture-the-hostname 6.12.48+deb13-cloud-arm64 #1 SMP Debian 6.12.48-1 (2025-09-20) aarch64 GNU/Linux
 I: ls -l /bin
-  lrwxrwxrwx 1 root root 7 Aug 10 12:30 /bin -> usr/bin
-I: user script /srv/workspace/pbuilder/585569/tmp/hooks/D02_print_environment finished
+  lrwxrwxrwx 1 root root 7 Aug 10  2025 /bin -> usr/bin
+I: user script /srv/workspace/pbuilder/2573505/tmp/hooks/D02_print_environment finished
  -> Attempting to satisfy build-dependencies
  -> Creating pbuilder-satisfydepends-dummy package
 Package: pbuilder-satisfydepends-dummy
@@ -207,7 +239,7 @@
 Get: 81 http://deb.debian.org/debian forky/main arm64 python3-setuptools-whl all 78.1.1-0.1 [1268 kB]
 Get: 82 http://deb.debian.org/debian forky/main arm64 python3.13-venv arm64 3.13.7-1 [5472 B]
 Get: 83 http://deb.debian.org/debian forky/main arm64 python3-venv arm64 3.13.7-1 [1180 B]
-Fetched 26.4 MB in 0s (253 MB/s)
+Fetched 26.4 MB in 0s (106 MB/s)
 Preconfiguring packages ...
 Selecting previously unselected package libexpat1: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 ... 20020 files and directories currently installed.)
@@ -486,8 +518,8 @@
 Setting up tzdata (2025b-5) ...
 
 Current default time zone: 'Etc/UTC'
-Local time is now:      Wed Sep 24 22:09:45 UTC 2025.
-Universal Time is now:  Wed Sep 24 22:09:45 UTC 2025.
+Local time is now:      Wed Oct 28 04:33:46 UTC 2026.
+Universal Time is now:  Wed Oct 28 04:33:46 UTC 2026.
 Run 'dpkg-reconfigure tzdata' if you wish to change it.
 
 Setting up autotools-dev (20240727.1) ...
@@ -573,7 +605,11 @@
 Building tag database...
  -> Finished parsing the build-deps
 I: Building the package
-I: Running cd /build/reproducible-path/rope-1.13.0/ && 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  > ../rope_1.13.0-4_source.changes
+I: user script /srv/workspace/pbuilder/2573505/tmp/hooks/A99_set_merged_usr starting
+Not re-configuring usrmerge for forky
+I: user script /srv/workspace/pbuilder/2573505/tmp/hooks/A99_set_merged_usr finished
+hostname: Name or service not known
+I: Running cd /build/reproducible-path/rope-1.13.0/ && 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  > ../rope_1.13.0-4_source.changes
 dpkg-buildpackage: info: source package rope
 dpkg-buildpackage: info: source version 1.13.0-4
 dpkg-buildpackage: info: source distribution unstable
@@ -618,8 +654,8 @@
         ********************************************************************************
         Please use a simple string containing a SPDX expression for `project.license`. You can also use `project.license-files`. (Both options available on setuptools>=77.0.0).
 
-        By 2026-Feb-18, 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.
 
         See https://packaging.python.org/en/latest/guides/writing-pyproject-toml/#license for details.
         ********************************************************************************
@@ -890,7 +926,7 @@
 Copying rope.egg-info to build/bdist.linux-aarch64/wheel/./rope-1.13.0.egg-info
 running install_scripts
 creating build/bdist.linux-aarch64/wheel/rope-1.13.0.dist-info/WHEEL
-creating '/build/reproducible-path/rope-1.13.0/.pybuild/cpython3_3.13_rope/.tmp-ch_m0ro7/rope-1.13.0-py3-none-any.whl' and adding 'build/bdist.linux-aarch64/wheel' to it
+creating '/build/reproducible-path/rope-1.13.0/.pybuild/cpython3_3.13_rope/.tmp-mumuqsp_/rope-1.13.0-py3-none-any.whl' and adding 'build/bdist.linux-aarch64/wheel' to it
 adding 'rope/__init__.py'
 adding 'rope/base/__init__.py'
 adding 'rope/base/arguments.py'
@@ -1077,8 +1113,8 @@
 ==================================== ERRORS ====================================
 ______ ERROR at teardown of test_version_hash_varies_on_get_file_content _______
 
-session_venv = PosixPath('/tmp/pytest-of-pbuilder1/pytest-0/venv0')
-session_venv_python_executable = PosixPath('/tmp/pytest-of-pbuilder1/pytest-0/venv0/bin/python')
+session_venv = PosixPath('/tmp/pytest-of-pbuilder2/pytest-0/venv0')
+session_venv_python_executable = PosixPath('/tmp/pytest-of-pbuilder2/pytest-0/venv0/bin/python')
 
     @pytest.fixture(scope="session")
     def external_fixturepkg(session_venv, session_venv_python_executable):
@@ -1120,7 +1156,7 @@
 
 /usr/lib/python3.13/subprocess.py:419: CalledProcessError
 --------------------------- Captured stderr teardown ---------------------------
-WARNING: The directory '/nonexistent/first-build/.cache/pip' or its parent directory is not owned or is not writable by the current user. The cache has been disabled. Check the permissions and owner of that directory. If executing pip with sudo, you should use sudo's -H flag.
+WARNING: The directory '/nonexistent/second-build/.cache/pip' or its parent directory is not owned or is not writable by the current user. The cache has been disabled. Check the permissions and owner of that directory. If executing pip with sudo, you should use sudo's -H flag.
 error: externally-managed-environment
 
 × This environment is externally managed
@@ -1172,7 +1208,7 @@
            ^^^^^^^^^^^^^^^^
 _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 
 
-self = PosixPath('/tmp/tmpm3dwna8v')
+self = PosixPath('/tmp/tmpv5g4oo8u')
 
     def iterdir(self):
         """Yield path objects of the directory contents.
@@ -1183,7 +1219,7 @@
         root_dir = str(self)
 >       with os.scandir(root_dir) as scandir_it:
              ^^^^^^^^^^^^^^^^^^^^
-E       PermissionError: [Errno 13] Permission denied: '/tmp/tmpm3dwna8v'
+E       PermissionError: [Errno 13] Permission denied: '/tmp/tmpv5g4oo8u'
 
 /usr/lib/python3.13/pathlib/_local.py:577: PermissionError
 ______ DocstringNoneAssignmentHintingTest.test_hint_parametrized_iterable ______
@@ -1724,7 +1760,7 @@
 FAILED ropetest/type_hinting_test.py::PEP0484CommentNotImplementedAssignmentHintingTest::test_hint_parametrized_iterable
 FAILED ropetest/type_hinting_test.py::PEP0484CommentNotImplementedAssignmentHintingTest::test_hint_parametrized_iterator
 ERROR ropetest/versioningtest.py::test_version_hash_varies_on_get_file_content
-= 9 failed, 2068 passed, 7 skipped, 5 xfailed, 1931 warnings, 1 error in 14.99s =
+= 9 failed, 2068 passed, 7 skipped, 5 xfailed, 1931 warnings, 1 error in 14.76s =
 make[1]: [debian/rules:14: override_dh_auto_test] Error 1 (ignored)
 make[1]: Leaving directory '/build/reproducible-path/rope-1.13.0'
    create-stamp debian/debhelper-build-stamp
@@ -1811,12 +1847,14 @@
 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/2573505/tmp/hooks/B01_cleanup starting
+I: user script /srv/workspace/pbuilder/2573505/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/585569 and its subdirectories
-I: Current time: Wed Sep 24 10:10:21 -12 2025
-I: pbuilder-time-stamp: 1758751821
+I: removing directory /srv/workspace/pbuilder/2573505 and its subdirectories
+I: Current time: Wed Oct 28 18:34:23 +14 2026
+I: pbuilder-time-stamp: 1793162063