Diff of the two buildlogs:

--
--- b1/build.log	2025-03-08 18:41:36.433888213 +0000
+++ b2/build.log	2025-03-08 18:42:24.671717648 +0000
@@ -1,6 +1,6 @@
 I: pbuilder: network access will be disabled during build
-I: Current time: Sat Mar  8 06:37:12 -12 2025
-I: pbuilder-time-stamp: 1741459032
+I: Current time: Sat Apr 11 15:04:35 +14 2026
+I: pbuilder-time-stamp: 1775869475
 I: Building the build Environment
 I: extracting base tarball [/var/cache/pbuilder/trixie-reproducible-base.tgz]
 I: copying local configuration
@@ -23,54 +23,86 @@
 dpkg-source: info: unpacking python-rtree_1.4.0-1.debian.tar.xz
 I: Not using root during the build.
 I: Installing the build-deps
-I: user script /srv/workspace/pbuilder/4511/tmp/hooks/D02_print_environment starting
+I: user script /srv/workspace/pbuilder/96254/tmp/hooks/D01_modify_environment starting
+debug: Running on ionos16-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 11 01:04 /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/96254/tmp/hooks/D01_modify_environment finished
+I: user script /srv/workspace/pbuilder/96254/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=11 '
-  DISTRIBUTION='trixie'
-  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=21 '
+  DIRSTACK=()
+  DISTRIBUTION=trixie
+  EUID=0
+  FUNCNAME=([0]="Echo" [1]="main")
+  GROUPS=()
+  HOME=/root
+  HOSTNAME=i-capture-the-hostname
+  HOSTTYPE=i686
+  HOST_ARCH=i386
   IFS=' 	
   '
-  INVOCATION_ID='c4b17dea38904d90bc8280d8aa86a81c'
-  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='4511'
-  PS1='# '
-  PS2='> '
+  INVOCATION_ID=c5330406448b4344a9be31870608833e
+  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=96254
   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.QM9y7AHE/pbuilderrc_G6xl --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.QM9y7AHE/b1 --logfile b1/build.log python-rtree_1.4.0-1.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://46.16.76.132:3128'
+  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.QM9y7AHE/pbuilderrc_tSJz --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.QM9y7AHE/b2 --logfile b2/build.log python-rtree_1.4.0-1.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://213.165.73.152:3128
 I: uname -a
-  Linux ionos2-i386 6.1.0-31-amd64 #1 SMP PREEMPT_DYNAMIC Debian 6.1.128-1 (2025-02-07) x86_64 GNU/Linux
+  Linux i-capture-the-hostname 6.1.0-31-amd64 #1 SMP PREEMPT_DYNAMIC Debian 6.1.128-1 (2025-02-07) x86_64 GNU/Linux
 I: ls -l /bin
-  lrwxrwxrwx 1 root root 7 Nov 22 14:40 /bin -> usr/bin
-I: user script /srv/workspace/pbuilder/4511/tmp/hooks/D02_print_environment finished
+  lrwxrwxrwx 1 root root 7 Nov 22  2024 /bin -> usr/bin
+I: user script /srv/workspace/pbuilder/96254/tmp/hooks/D02_print_environment finished
  -> Attempting to satisfy build-dependencies
  -> Creating pbuilder-satisfydepends-dummy package
 Package: pbuilder-satisfydepends-dummy
@@ -234,7 +266,7 @@
 Get: 102 http://deb.debian.org/debian trixie/main i386 sphinx-common all 8.1.3-5 [617 kB]
 Get: 103 http://deb.debian.org/debian trixie/main i386 python3-sphinx all 8.1.3-5 [468 kB]
 Get: 104 http://deb.debian.org/debian trixie/main i386 python3-sphinx-issues all 5.0.0-1 [10.0 kB]
-Fetched 49.5 MB in 2s (23.9 MB/s)
+Fetched 49.5 MB in 1s (93.8 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 ... 19787 files and directories currently installed.)
@@ -575,8 +607,8 @@
 Setting up tzdata (2025a-2) ...
 
 Current default time zone: 'Etc/UTC'
-Local time is now:      Sat Mar  8 18:39:03 UTC 2025.
-Universal Time is now:  Sat Mar  8 18:39:03 UTC 2025.
+Local time is now:      Sat Apr 11 01:04:57 UTC 2026.
+Universal Time is now:  Sat Apr 11 01:04:57 UTC 2026.
 Run 'dpkg-reconfigure tzdata' if you wish to change it.
 
 Setting up libspatialindex8:i386 (2.1.0-1) ...
@@ -689,7 +721,11 @@
 Building tag database...
  -> Finished parsing the build-deps
 I: Building the package
-I: Running cd /build/reproducible-path/python-rtree-1.4.0/ && 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  > ../python-rtree_1.4.0-1_source.changes
+I: user script /srv/workspace/pbuilder/96254/tmp/hooks/A99_set_merged_usr starting
+Not re-configuring usrmerge for trixie
+I: user script /srv/workspace/pbuilder/96254/tmp/hooks/A99_set_merged_usr finished
+hostname: Name or service not known
+I: Running cd /build/reproducible-path/python-rtree-1.4.0/ && 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  > ../python-rtree_1.4.0-1_source.changes
 dpkg-buildpackage: info: source package python-rtree
 dpkg-buildpackage: info: source version 1.4.0-1
 dpkg-buildpackage: info: source distribution unstable
@@ -722,10 +758,10 @@
 running build_py
 creating build/lib.linux-i686-cpython-313/rtree
 copying rtree/exceptions.py -> build/lib.linux-i686-cpython-313/rtree
-copying rtree/finder.py -> build/lib.linux-i686-cpython-313/rtree
-copying rtree/index.py -> build/lib.linux-i686-cpython-313/rtree
-copying rtree/core.py -> build/lib.linux-i686-cpython-313/rtree
 copying rtree/__init__.py -> build/lib.linux-i686-cpython-313/rtree
+copying rtree/core.py -> build/lib.linux-i686-cpython-313/rtree
+copying rtree/index.py -> build/lib.linux-i686-cpython-313/rtree
+copying rtree/finder.py -> build/lib.linux-i686-cpython-313/rtree
 copying rtree/py.typed -> build/lib.linux-i686-cpython-313/rtree
 running build_ext
 installing to build/bdist.linux-i686/wheel
@@ -734,11 +770,11 @@
 creating build/bdist.linux-i686/wheel
 creating build/bdist.linux-i686/wheel/rtree
 copying build/lib.linux-i686-cpython-313/rtree/exceptions.py -> build/bdist.linux-i686/wheel/./rtree
-copying build/lib.linux-i686-cpython-313/rtree/finder.py -> build/bdist.linux-i686/wheel/./rtree
 copying build/lib.linux-i686-cpython-313/rtree/py.typed -> build/bdist.linux-i686/wheel/./rtree
-copying build/lib.linux-i686-cpython-313/rtree/index.py -> build/bdist.linux-i686/wheel/./rtree
-copying build/lib.linux-i686-cpython-313/rtree/core.py -> build/bdist.linux-i686/wheel/./rtree
 copying build/lib.linux-i686-cpython-313/rtree/__init__.py -> build/bdist.linux-i686/wheel/./rtree
+copying build/lib.linux-i686-cpython-313/rtree/core.py -> build/bdist.linux-i686/wheel/./rtree
+copying build/lib.linux-i686-cpython-313/rtree/index.py -> build/bdist.linux-i686/wheel/./rtree
+copying build/lib.linux-i686-cpython-313/rtree/finder.py -> build/bdist.linux-i686/wheel/./rtree
 running install_egg_info
 running egg_info
 creating rtree.egg-info
@@ -753,7 +789,7 @@
 Copying rtree.egg-info to build/bdist.linux-i686/wheel/./rtree-1.4.0.egg-info
 running install_scripts
 creating build/bdist.linux-i686/wheel/rtree-1.4.0.dist-info/WHEEL
-creating '/build/reproducible-path/python-rtree-1.4.0/.pybuild/cpython3_3.13_rtree/.tmp-rmjigmm8/rtree-1.4.0-cp313-cp313-linux_i686.whl' and adding 'build/bdist.linux-i686/wheel' to it
+creating '/build/reproducible-path/python-rtree-1.4.0/.pybuild/cpython3_3.13_rtree/.tmp-pp_9d31m/rtree-1.4.0-cp313-cp313-linux_i686.whl' and adding 'build/bdist.linux-i686/wheel' to it
 adding 'rtree/__init__.py'
 adding 'rtree/core.py'
 adding 'rtree/exceptions.py'
@@ -778,7 +814,7 @@
 making output directory... done
 loading intersphinx inventory 'python' from https://docs.python.org/3/objects.inv ...
 WARNING: failed to reach any of the inventories with the following issues:
-intersphinx inventory 'https://docs.python.org/3/objects.inv' not fetchable due to <class 'requests.exceptions.ConnectionError'>: HTTPSConnectionPool(host='docs.python.org', port=443): Max retries exceeded with url: /3/objects.inv (Caused by NameResolutionError("<urllib3.connection.HTTPSConnection object at 0xf57d5bb0>: Failed to resolve 'docs.python.org' ([Errno -3] Temporary failure in name resolution)"))
+intersphinx inventory 'https://docs.python.org/3/objects.inv' not fetchable due to <class 'requests.exceptions.ConnectionError'>: HTTPSConnectionPool(host='docs.python.org', port=443): Max retries exceeded with url: /3/objects.inv (Caused by NameResolutionError("<urllib3.connection.HTTPSConnection object at 0xf582abb0>: Failed to resolve 'docs.python.org' ([Errno -3] Temporary failure in name resolution)"))
 building [mo]: targets for 0 po files that are out of date
 writing output... 
 building [html]: targets for 8 source files that are out of date
@@ -798,9 +834,9 @@
 preparing documents... done
 copying assets... 
 copying static files... 
-Writing evaluated template result to /build/reproducible-path/python-rtree-1.4.0/docs/build/html/_static/documentation_options.js
 Writing evaluated template result to /build/reproducible-path/python-rtree-1.4.0/docs/build/html/_static/basic.css
 Writing evaluated template result to /build/reproducible-path/python-rtree-1.4.0/docs/build/html/_static/language_data.js
+Writing evaluated template result to /build/reproducible-path/python-rtree-1.4.0/docs/build/html/_static/documentation_options.js
 Writing evaluated template result to /build/reproducible-path/python-rtree-1.4.0/docs/build/html/_static/nature.css
 copying static files: done
 copying extra files... 
@@ -841,7 +877,7 @@
 tests/test_index.py .......x............s...............                 [ 97%]
 tests/test_tpr.py .                                                      [100%]
 
-=================== 37 passed, 1 skipped, 1 xfailed in 0.96s ===================
+=================== 37 passed, 1 skipped, 1 xfailed in 0.24s ===================
    create-stamp debian/debhelper-build-stamp
    dh_testroot -O--buildsystem=pybuild
    dh_prep -O--buildsystem=pybuild
@@ -875,12 +911,14 @@
 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/96254/tmp/hooks/B01_cleanup starting
+I: user script /srv/workspace/pbuilder/96254/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/4511 and its subdirectories
-I: Current time: Sat Mar  8 06:41:34 -12 2025
-I: pbuilder-time-stamp: 1741459294
+I: removing directory /srv/workspace/pbuilder/96254 and its subdirectories
+I: Current time: Sat Apr 11 15:05:20 +14 2026
+I: pbuilder-time-stamp: 1775869520