Diff of the two buildlogs:

--
--- b1/build.log	2025-03-20 21:11:00.728250321 +0000
+++ b2/build.log	2025-03-20 21:15:41.187651422 +0000
@@ -1,6 +1,6 @@
 I: pbuilder: network access will be disabled during build
-I: Current time: Wed Apr 22 15:31:49 -12 2026
-I: pbuilder-time-stamp: 1776915109
+I: Current time: Fri Mar 21 11:11:03 +14 2025
+I: pbuilder-time-stamp: 1742505063
 I: Building the build Environment
 I: extracting base tarball [/var/cache/pbuilder/unstable-reproducible-base.tgz]
 I: copying local configuration
@@ -27,52 +27,84 @@
 dpkg-source: info: applying increase-sleep-time-in-threading-test.patch
 I: Not using root during the build.
 I: Installing the build-deps
-I: user script /srv/workspace/pbuilder/2015638/tmp/hooks/D02_print_environment starting
+I: user script /srv/workspace/pbuilder/4066785/tmp/hooks/D01_modify_environment starting
+debug: Running on ionos11-amd64.
+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 20 21:11 /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/4066785/tmp/hooks/D01_modify_environment finished
+I: user script /srv/workspace/pbuilder/4066785/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='amd64'
-  DEBIAN_FRONTEND='noninteractive'
-  DEB_BUILD_OPTIONS='buildinfo=+all reproducible=+all parallel=42 '
-  DISTRIBUTION='unstable'
-  HOME='/root'
-  HOST_ARCH='amd64'
+  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]="x86_64-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=amd64
+  DEBIAN_FRONTEND=noninteractive
+  DEB_BUILD_OPTIONS='buildinfo=+all reproducible=+all parallel=20 '
+  DIRSTACK=()
+  DISTRIBUTION=unstable
+  EUID=0
+  FUNCNAME=([0]="Echo" [1]="main")
+  GROUPS=()
+  HOME=/root
+  HOSTNAME=i-capture-the-hostname
+  HOSTTYPE=x86_64
+  HOST_ARCH=amd64
   IFS=' 	
   '
-  INVOCATION_ID='f556d5c00ff449afa92e545da2793e0b'
-  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='2015638'
-  PS1='# '
-  PS2='> '
+  INVOCATION_ID=3ca93ddd781446289808344847fbbede
+  LANG=C
+  LANGUAGE=et_EE:et
+  LC_ALL=C
+  MACHTYPE=x86_64-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=4066785
   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.tp99xRKL/pbuilderrc_ajuu --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.tp99xRKL/b1 --logfile b1/build.log poetry_2.1.1+dfsg-3.dsc'
-  SUDO_GID='111'
-  SUDO_UID='106'
-  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.tp99xRKL/pbuilderrc_FHVN --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.tp99xRKL/b2 --logfile b2/build.log poetry_2.1.1+dfsg-3.dsc'
+  SUDO_GID=111
+  SUDO_UID=106
+  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 ionos15-amd64 6.12.12+bpo-amd64 #1 SMP PREEMPT_DYNAMIC Debian 6.12.12-1~bpo12+1 (2025-02-23) 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/2015638/tmp/hooks/D02_print_environment finished
+  lrwxrwxrwx 1 root root 7 Mar  4 11:20 /bin -> usr/bin
+I: user script /srv/workspace/pbuilder/4066785/tmp/hooks/D02_print_environment finished
  -> Attempting to satisfy build-dependencies
  -> Creating pbuilder-satisfydepends-dummy package
 Package: pbuilder-satisfydepends-dummy
@@ -345,7 +377,7 @@
 Get: 165 http://deb.debian.org/debian unstable/main amd64 python3-pytest-xdist all 3.6.1-1 [44.4 kB]
 Get: 166 http://deb.debian.org/debian unstable/main amd64 python3.13-venv amd64 3.13.2-2 [5464 B]
 Get: 167 http://deb.debian.org/debian unstable/main amd64 python3-venv amd64 3.13.2-2 [1180 B]
-Fetched 73.8 MB in 1s (94.7 MB/s)
+Fetched 73.8 MB in 5s (16.4 MB/s)
 Preconfiguring packages ...
 Selecting previously unselected package libpython3.13-minimal:amd64.
 (Reading database ... 
(Reading database ... 5%
(Reading database ... 10%
(Reading database ... 15%
(Reading database ... 20%
(Reading database ... 25%
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(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 ... 19806 files and directories currently installed.)
@@ -880,8 +912,8 @@
 Setting up tzdata (2025a-2) ...
 
 Current default time zone: 'Etc/UTC'
-Local time is now:      Thu Apr 23 03:32:20 UTC 2026.
-Universal Time is now:  Thu Apr 23 03:32:20 UTC 2026.
+Local time is now:      Thu Mar 20 21:12:39 UTC 2025.
+Universal Time is now:  Thu Mar 20 21:12:39 UTC 2025.
 Run 'dpkg-reconfigure tzdata' if you wish to change it.
 
 Setting up liberror-perl (0.17030-1) ...
@@ -1049,7 +1081,11 @@
 Building tag database...
  -> Finished parsing the build-deps
 I: Building the package
-I: Running cd /build/reproducible-path/poetry-2.1.1+dfsg/ && 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  > ../poetry_2.1.1+dfsg-3_source.changes
+I: user script /srv/workspace/pbuilder/4066785/tmp/hooks/A99_set_merged_usr starting
+Not re-configuring usrmerge for unstable
+I: user script /srv/workspace/pbuilder/4066785/tmp/hooks/A99_set_merged_usr finished
+hostname: Name or service not known
+I: Running cd /build/reproducible-path/poetry-2.1.1+dfsg/ && 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  > ../poetry_2.1.1+dfsg-3_source.changes
 dpkg-buildpackage: info: source package poetry
 dpkg-buildpackage: info: source version 2.1.1+dfsg-3
 dpkg-buildpackage: info: source distribution unstable
@@ -1084,21 +1120,21 @@
 rootdir: /build/reproducible-path/poetry-2.1.1+dfsg/.pybuild/cpython3_3.13_poetry/build
 configfile: pyproject.toml
 testpaths: tests
-plugins: xdist-3.6.1, mock-3.14.0
-created: 42/42 workers
-42 workers [2317 items]
+plugins: mock-3.14.0, xdist-3.6.1
+created: 20/20 workers
+20 workers [2317 items]
 
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-...s.....................................s.............................. [ 15%]
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+....sss................................................................. [  9%]
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+..................................s..................................... [ 15%]
+........................................................................ [ 18%]
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+...........................s............................................ [ 31%]
+........................................................s............... [ 34%]
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@@ -1117,42 +1153,42 @@
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-.....................................................s.................. [ 93%]
-......................................................s................. [ 96%]
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+.........................................s.............................. [ 93%]
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+.........s.................................................s............ [ 99%]
 .............                                                            [100%]
 =============================== warnings summary ===============================
 tests/console/commands/test_search.py: 11 warnings
-tests/console/commands/test_show.py: 10 warnings
 tests/console/commands/test_add.py: 3 warnings
-tests/installation/test_chooser.py: 54 warnings
+tests/console/commands/test_show.py: 10 warnings
+tests/console/commands/test_publish.py: 2 warnings
 tests/inspection/test_lazy_wheel.py: 101 warnings
+tests/installation/test_chooser.py: 54 warnings
 tests/installation/test_executor.py: 6 warnings
-tests/console/commands/test_publish.py: 2 warnings
-tests/installation/test_installer.py: 86 warnings
 tests/packages/test_direct_origin.py: 1 warning
+tests/installation/test_installer.py: 86 warnings
 tests/publishing/test_uploader.py: 18 warnings
 tests/puzzle/test_solver.py: 21 warnings
 tests/inspection/test_info.py: 24 warnings
 tests/repositories/test_legacy_repository.py: 84 warnings
 tests/repositories/test_pypi_repository.py: 57 warnings
+tests/puzzle/test_provider.py: 24 warnings
 tests/repositories/test_repository_pool.py: 2 warnings
 tests/utils/test_authenticator.py: 73 warnings
-tests/puzzle/test_provider.py: 24 warnings
 tests/utils/test_isolated_build.py: 12 warnings
   /usr/lib/python3/dist-packages/httpretty/core.py:1077: DeprecationWarning: datetime.datetime.utcnow() is deprecated and scheduled for removal in a future version. Use timezone-aware objects to represent datetimes in UTC: datetime.datetime.now(datetime.UTC).
     now = datetime.utcnow()
 
 -- Docs: https://docs.pytest.org/en/stable/how-to/capture-warnings.html
 =========================== short test summary info ============================
-SKIPPED [1] tests/console/commands/test_run.py:156: Poetry only installs CMD script files for console scripts of editable dependencies on Windows
-SKIPPED [1] tests/console/commands/test_sync.py:26: Only relevant for `poetry install`
-SKIPPED [1] tests/console/commands/self/test_sync.py:26: Only relevant for `poetry self install`
 SKIPPED [3] tests/console/commands/env/test_activate.py:52: Only Windows shells
+SKIPPED [1] tests/console/commands/test_sync.py:26: Only relevant for `poetry install`
 SKIPPED [1] tests/installation/test_executor.py:414: https://github.com/python-poetry/poetry/issues/7983
+SKIPPED [1] tests/console/commands/test_run.py:156: Poetry only installs CMD script files for console scripts of editable dependencies on Windows
 SKIPPED [1] tests/utils/env/test_env_manager.py:1265: requires darwin
 SKIPPED [1] tests/utils/test_python_manager.py:98: Windows only
-================ 2308 passed, 9 skipped, 589 warnings in 45.40s ================
+SKIPPED [1] tests/console/commands/self/test_sync.py:26: Only relevant for `poetry self install`
+=========== 2308 passed, 9 skipped, 589 warnings in 76.82s (0:01:16) ===========
    create-stamp debian/debhelper-build-stamp
    dh_testroot -O--buildsystem=pybuild
    dh_prep -O--buildsystem=pybuild
@@ -1181,12 +1217,14 @@
 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/4066785/tmp/hooks/B01_cleanup starting
+I: user script /srv/workspace/pbuilder/4066785/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/2015638 and its subdirectories
-I: Current time: Wed Apr 22 15:33:58 -12 2026
-I: pbuilder-time-stamp: 1776915238
+I: removing directory /srv/workspace/pbuilder/4066785 and its subdirectories
+I: Current time: Fri Mar 21 11:15:40 +14 2025
+I: pbuilder-time-stamp: 1742505340