Diff of the two buildlogs:

--
--- b1/build.log	2025-01-26 22:31:55.619395277 +0000
+++ b2/build.log	2025-01-26 22:35:22.010090690 +0000
@@ -1,6 +1,6 @@
 I: pbuilder: network access will be disabled during build
-I: Current time: Sat Feb 28 16:54:04 -12 2026
-I: pbuilder-time-stamp: 1772340844
+I: Current time: Mon Jan 27 12:31:59 +14 2025
+I: pbuilder-time-stamp: 1737930719
 I: Building the build Environment
 I: extracting base tarball [/var/cache/pbuilder/trixie-reproducible-base.tgz]
 I: copying local configuration
@@ -27,52 +27,84 @@
 dpkg-source: info: applying wheel-package-error
 I: Not using root during the build.
 I: Installing the build-deps
-I: user script /srv/workspace/pbuilder/1672688/tmp/hooks/D02_print_environment starting
+I: user script /srv/workspace/pbuilder/3458681/tmp/hooks/D01_modify_environment starting
+debug: Running on codethink04-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 Jan 26 22:32 /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/3458681/tmp/hooks/D01_modify_environment finished
+I: user script /srv/workspace/pbuilder/3458681/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='d56455250fe3418eb6a65746f5e077ec'
-  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='1672688'
-  PS1='# '
-  PS2='> '
+  INVOCATION_ID=3228755400c741ec8c7cdb426ed4976c
+  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=3458681
   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.K1gApTD2/pbuilderrc_sKnA --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.K1gApTD2/b1 --logfile b1/build.log python-virtualenv_20.29.1+ds-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.K1gApTD2/pbuilderrc_HqFd --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.K1gApTD2/b2 --logfile b2/build.log python-virtualenv_20.29.1+ds-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 codethink03-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  2024 /bin -> usr/bin
-I: user script /srv/workspace/pbuilder/1672688/tmp/hooks/D02_print_environment finished
+  lrwxrwxrwx 1 root root 7 Nov 22 14:40 /bin -> usr/bin
+I: user script /srv/workspace/pbuilder/3458681/tmp/hooks/D02_print_environment finished
  -> Attempting to satisfy build-dependencies
  -> Creating pbuilder-satisfydepends-dummy package
 Package: pbuilder-satisfydepends-dummy
@@ -230,7 +262,7 @@
 Get: 92 http://deb.debian.org/debian trixie/main arm64 python3-wheel-whl all 0.45.1-1 [75.3 kB]
 Get: 93 http://deb.debian.org/debian trixie/main arm64 unzip arm64 6.0-28+b1 [158 kB]
 Get: 94 http://deb.debian.org/debian trixie/main arm64 zip arm64 3.0-14+b1 [227 kB]
-Fetched 38.9 MB in 0s (171 MB/s)
+Fetched 38.9 MB in 1s (45.5 MB/s)
 Preconfiguring packages ...
 Selecting previously unselected package libpython3.13-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.)
@@ -549,8 +581,8 @@
 Setting up tzdata (2024b-6) ...
 
 Current default time zone: 'Etc/UTC'
-Local time is now:      Sun Mar  1 04:54:24 UTC 2026.
-Universal Time is now:  Sun Mar  1 04:54:24 UTC 2026.
+Local time is now:      Sun Jan 26 22:32:58 UTC 2025.
+Universal Time is now:  Sun Jan 26 22:32:58 UTC 2025.
 Run 'dpkg-reconfigure tzdata' if you wish to change it.
 
 Setting up zip (3.0-14+b1) ...
@@ -642,7 +674,11 @@
 Building tag database...
  -> Finished parsing the build-deps
 I: Building the package
-I: Running cd /build/reproducible-path/python-virtualenv-20.29.1+ds/ && 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-virtualenv_20.29.1+ds-1_source.changes
+I: user script /srv/workspace/pbuilder/3458681/tmp/hooks/A99_set_merged_usr starting
+Not re-configuring usrmerge for trixie
+I: user script /srv/workspace/pbuilder/3458681/tmp/hooks/A99_set_merged_usr finished
+hostname: Name or service not known
+I: Running cd /build/reproducible-path/python-virtualenv-20.29.1+ds/ && 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-virtualenv_20.29.1+ds-1_source.changes
 dpkg-buildpackage: info: source package python-virtualenv
 dpkg-buildpackage: info: source version 20.29.1+ds-1
 dpkg-buildpackage: info: source distribution unstable
@@ -751,10 +787,10 @@
 	install -m0755 -d debian/virtualenv/usr/share/doc/virtualenv
 	install -p -m0644 debian/copyright debian/virtualenv/usr/share/doc/virtualenv/copyright
    dh_installchangelogs -O--buildsystem=pybuild
-	install -m0755 -d debian/virtualenv/usr/share/doc/virtualenv
-	install -p -m0644 debian/.debhelper/generated/virtualenv/dh_installchangelogs.dch.trimmed debian/virtualenv/usr/share/doc/virtualenv/changelog.Debian
 	install -m0755 -d debian/python3-virtualenv/usr/share/doc/python3-virtualenv
 	install -p -m0644 debian/.debhelper/generated/python3-virtualenv/dh_installchangelogs.dch.trimmed debian/python3-virtualenv/usr/share/doc/python3-virtualenv/changelog.Debian
+	install -m0755 -d debian/virtualenv/usr/share/doc/virtualenv
+	install -p -m0644 debian/.debhelper/generated/virtualenv/dh_installchangelogs.dch.trimmed debian/virtualenv/usr/share/doc/virtualenv/changelog.Debian
    dh_installman -O--buildsystem=pybuild
 	install -m0755 -d debian/python3-virtualenv/usr/share/man/man1/
 	install -p -m0644 ./debian/virtualenv.1 debian/python3-virtualenv/usr/share/man/man1/virtualenv.1
@@ -792,7 +828,7 @@
 I: dh_python3 pydist:339: Ignoring complex environment marker: pytest_freezer>=0.4.8; (platform_python_implementation == 'PyPy' or (platform_python_implementation == 'CPython' and sys_platform == 'win32' and python_version >= '3.13')) and extra == 'test'
 D: dh_python3 pydist:175: trying to find dependency for time-machine>=2.10; (platform_python_implementation == 'CPython') and extra == 'test' (python=None)
 I: dh_python3 pydist:339: Ignoring complex environment marker: time_machine>=2.10; (platform_python_implementation == 'CPython') and extra == 'test'
-D: dh_python3 depends:253: D={'python3:any', 'python3-filelock', 'python3-platformdirs (<< 5), python3-platformdirs (>= 3.9.1)', 'python3-distlib (>= 0.3.1)'}; R=[]; S=[]; E=[], B=[]; RT=[]
+D: dh_python3 depends:253: D={'python3-filelock', 'python3-distlib (>= 0.3.1)', 'python3:any', 'python3-platformdirs (<< 5), python3-platformdirs (>= 3.9.1)'}; R=[]; S=[]; E=[], B=[]; RT=[]
 make[1]: Leaving directory '/build/reproducible-path/python-virtualenv-20.29.1+ds'
    dh_installsystemduser -O--buildsystem=pybuild
    dh_perl -O--buildsystem=pybuild
@@ -802,14 +838,14 @@
 	cd debian/python3-virtualenv
 	cd debian/virtualenv
 	chmod a-x usr/share/doc/virtualenv/changelog.Debian
-	chmod a-x usr/share/doc/python3-virtualenv/changelog.Debian usr/share/man/man1/virtualenv.1
 	gzip -9nf usr/share/doc/virtualenv/changelog.Debian
-	gzip -9nf usr/share/doc/python3-virtualenv/changelog.Debian usr/share/man/man1/virtualenv.1
+	chmod a-x usr/share/doc/python3-virtualenv/changelog.Debian usr/share/man/man1/virtualenv.1
 	cd '/build/reproducible-path/python-virtualenv-20.29.1+ds'
+	gzip -9nf usr/share/doc/python3-virtualenv/changelog.Debian usr/share/man/man1/virtualenv.1
 	cd '/build/reproducible-path/python-virtualenv-20.29.1+ds'
    dh_fixperms -O--buildsystem=pybuild
-	find debian/python3-virtualenv ! -type l -a -true -a -true -print0 2>/dev/null | xargs -0r chmod go=rX,u+rw,a-s
 	find debian/virtualenv ! -type l -a -true -a -true -print0 2>/dev/null | xargs -0r chmod go=rX,u+rw,a-s
+	find debian/python3-virtualenv ! -type l -a -true -a -true -print0 2>/dev/null | xargs -0r chmod go=rX,u+rw,a-s
 	find debian/virtualenv/usr/share/doc -type f -a -true -a ! -regex 'debian/virtualenv/usr/share/doc/[^/]*/examples/.*' -print0 2>/dev/null | xargs -0r chmod 0644
 	find debian/python3-virtualenv/usr/share/doc -type f -a -true -a ! -regex 'debian/python3-virtualenv/usr/share/doc/[^/]*/examples/.*' -print0 2>/dev/null | xargs -0r chmod 0644
 	find debian/virtualenv/usr/share/doc -type d -a -true -a -true -print0 2>/dev/null | xargs -0r chmod 0755
@@ -830,21 +866,21 @@
 	chmod 0755 -- debian/python3-virtualenv/DEBIAN/prerm
 	install -m0755 -d debian/virtualenv/DEBIAN
    dh_gencontrol -O--buildsystem=pybuild
-	install -m0755 -d debian/virtualenv/DEBIAN
-	echo misc:Depends= >> debian/virtualenv.substvars
-	echo misc:Pre-Depends= >> debian/virtualenv.substvars
-	dpkg-gencontrol -pvirtualenv -ldebian/changelog -Tdebian/virtualenv.substvars -cdebian/control -Pdebian/virtualenv
 	install -m0755 -d debian/python3-virtualenv/DEBIAN
 	echo misc:Depends= >> debian/python3-virtualenv.substvars
 	echo misc:Pre-Depends= >> debian/python3-virtualenv.substvars
 	dpkg-gencontrol -ppython3-virtualenv -ldebian/changelog -Tdebian/python3-virtualenv.substvars -cdebian/control -Pdebian/python3-virtualenv
+	install -m0755 -d debian/virtualenv/DEBIAN
+	echo misc:Depends= >> debian/virtualenv.substvars
+	echo misc:Pre-Depends= >> debian/virtualenv.substvars
+	dpkg-gencontrol -pvirtualenv -ldebian/changelog -Tdebian/virtualenv.substvars -cdebian/control -Pdebian/virtualenv
 	chmod 0644 -- debian/python3-virtualenv/DEBIAN/control
 	chmod 0644 -- debian/virtualenv/DEBIAN/control
    dh_md5sums -O--buildsystem=pybuild
 	install -m0755 -d debian/python3-virtualenv/DEBIAN
 	install -m0755 -d debian/virtualenv/DEBIAN
-	cd debian/virtualenv >/dev/null && xargs -r0 md5sum | perl -pe 'if (s@^\\@@) { s/\\\\/\\/g; }' > DEBIAN/md5sums
 	cd debian/python3-virtualenv >/dev/null && xargs -r0 md5sum | perl -pe 'if (s@^\\@@) { s/\\\\/\\/g; }' > DEBIAN/md5sums
+	cd debian/virtualenv >/dev/null && xargs -r0 md5sum | perl -pe 'if (s@^\\@@) { s/\\\\/\\/g; }' > DEBIAN/md5sums
 	chmod 0644 -- debian/virtualenv/DEBIAN/md5sums
 	chmod 0644 -- debian/python3-virtualenv/DEBIAN/md5sums
    dh_builddeb -O--buildsystem=pybuild
@@ -859,12 +895,14 @@
 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/3458681/tmp/hooks/B01_cleanup starting
+I: user script /srv/workspace/pbuilder/3458681/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/1672688 and its subdirectories
-I: Current time: Sat Feb 28 16:54:53 -12 2026
-I: pbuilder-time-stamp: 1772340893
+I: removing directory /srv/workspace/pbuilder/3458681 and its subdirectories
+I: Current time: Mon Jan 27 12:35:20 +14 2025
+I: pbuilder-time-stamp: 1737930920