Diff of the two buildlogs:

--
--- b1/build.log	2025-02-24 12:15:54.730891003 +0000
+++ b2/build.log	2025-02-24 12:17:29.810623883 +0000
@@ -1,6 +1,6 @@
 I: pbuilder: network access will be disabled during build
-I: Current time: Mon Feb 24 00:14:36 -12 2025
-I: pbuilder-time-stamp: 1740399276
+I: Current time: Mon Mar 30 08:38:57 +14 2026
+I: pbuilder-time-stamp: 1774809537
 I: Building the build Environment
 I: extracting base tarball [/var/cache/pbuilder/unstable-reproducible-base.tgz]
 I: copying local configuration
@@ -25,52 +25,84 @@
 dpkg-source: info: applying 0002-Fill-unknown-if-cpuinfo-module-is-not-supported-the-.patch
 I: Not using root during the build.
 I: Installing the build-deps
-I: user script /srv/workspace/pbuilder/4161396/tmp/hooks/D02_print_environment starting
+I: user script /srv/workspace/pbuilder/103483/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 Mar 29 18:39 /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/103483/tmp/hooks/D01_modify_environment finished
+I: user script /srv/workspace/pbuilder/103483/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='unstable'
-  HOME='/root'
-  HOST_ARCH='arm64'
+  DIRSTACK=()
+  DISTRIBUTION=unstable
+  EUID=0
+  FUNCNAME=([0]="Echo" [1]="main")
+  GROUPS=()
+  HOME=/root
+  HOSTNAME=i-capture-the-hostname
+  HOSTTYPE=aarch64
+  HOST_ARCH=arm64
   IFS=' 	
   '
-  INVOCATION_ID='e5d4716b509a4df085d3fe0d0d115df0'
-  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='4161396'
-  PS1='# '
-  PS2='> '
+  INVOCATION_ID=f449ef4b2b98447da5896854edb6fac7
+  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=103483
   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.fdx8gZwm/pbuilderrc_LfzF --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.fdx8gZwm/b1 --logfile b1/build.log python-pyppmd_1.1.1+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.fdx8gZwm/pbuilderrc_fJU5 --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.fdx8gZwm/b2 --logfile b2/build.log python-pyppmd_1.1.1+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 codethink04-arm64 6.1.0-31-cloud-arm64 #1 SMP Debian 6.1.128-1 (2025-02-07) aarch64 GNU/Linux
+  Linux i-capture-the-hostname 6.1.0-31-cloud-arm64 #1 SMP Debian 6.1.128-1 (2025-02-07) aarch64 GNU/Linux
 I: ls -l /bin
-  lrwxrwxrwx 1 root root 7 Nov 22 14:40 /bin -> usr/bin
-I: user script /srv/workspace/pbuilder/4161396/tmp/hooks/D02_print_environment finished
+  lrwxrwxrwx 1 root root 7 Nov 22  2024 /bin -> usr/bin
+I: user script /srv/workspace/pbuilder/103483/tmp/hooks/D02_print_environment finished
  -> Attempting to satisfy build-dependencies
  -> Creating pbuilder-satisfydepends-dummy package
 Package: pbuilder-satisfydepends-dummy
@@ -246,7 +278,7 @@
 Get: 112 http://deb.debian.org/debian unstable/main arm64 python3-pytest-cov all 5.0.0-1 [26.8 kB]
 Get: 113 http://deb.debian.org/debian unstable/main arm64 python3-pytest-timeout all 2.3.1-1 [21.9 kB]
 Get: 114 http://deb.debian.org/debian unstable/main arm64 python3-setuptools-scm all 8.2.0-1 [41.0 kB]
-Fetched 51.6 MB in 0s (170 MB/s)
+Fetched 51.6 MB in 0s (129 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 ... 19889 files and directories currently installed.)
@@ -624,8 +656,8 @@
 Setting up tzdata (2025a-2) ...
 
 Current default time zone: 'Etc/UTC'
-Local time is now:      Mon Feb 24 12:14:56 UTC 2025.
-Universal Time is now:  Mon Feb 24 12:14:56 UTC 2025.
+Local time is now:      Sun Mar 29 18:39:21 UTC 2026.
+Universal Time is now:  Sun Mar 29 18:39:21 UTC 2026.
 Run 'dpkg-reconfigure tzdata' if you wish to change it.
 
 Setting up autotools-dev (20220109.1) ...
@@ -731,7 +763,11 @@
 Building tag database...
  -> Finished parsing the build-deps
 I: Building the package
-I: Running cd /build/reproducible-path/python-pyppmd-1.1.1+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-pyppmd_1.1.1+ds-1_source.changes
+I: user script /srv/workspace/pbuilder/103483/tmp/hooks/A99_set_merged_usr starting
+Not re-configuring usrmerge for unstable
+I: user script /srv/workspace/pbuilder/103483/tmp/hooks/A99_set_merged_usr finished
+hostname: Name or service not known
+I: Running cd /build/reproducible-path/python-pyppmd-1.1.1+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-pyppmd_1.1.1+ds-1_source.changes
 dpkg-buildpackage: info: source package python-pyppmd
 dpkg-buildpackage: info: source version 1.1.1+ds-1
 dpkg-buildpackage: info: source distribution unstable
@@ -853,7 +889,7 @@
 Copying src/pyppmd.egg-info to build/bdist.linux-aarch64/wheel/./pyppmd-1.1.1+ds.egg-info
 running install_scripts
 creating build/bdist.linux-aarch64/wheel/pyppmd-1.1.1+ds.dist-info/WHEEL
-creating '/build/reproducible-path/python-pyppmd-1.1.1+ds/.pybuild/cpython3_3.12_pyppmd/.tmp-q0yrssxn/pyppmd-1.1.1+ds-cp312-cp312-linux_aarch64.whl' and adding 'build/bdist.linux-aarch64/wheel' to it
+creating '/build/reproducible-path/python-pyppmd-1.1.1+ds/.pybuild/cpython3_3.12_pyppmd/.tmp-6lms42r4/pyppmd-1.1.1+ds-cp312-cp312-linux_aarch64.whl' and adding 'build/bdist.linux-aarch64/wheel' to it
 adding 'pyppmd/__init__.py'
 adding 'pyppmd/py.typed'
 adding 'pyppmd/c/c_ppmd.py'
@@ -971,7 +1007,7 @@
 Copying src/pyppmd.egg-info to build/bdist.linux-aarch64/wheel/./pyppmd-1.1.1+ds.egg-info
 running install_scripts
 creating build/bdist.linux-aarch64/wheel/pyppmd-1.1.1+ds.dist-info/WHEEL
-creating '/build/reproducible-path/python-pyppmd-1.1.1+ds/.pybuild/cpython3_3.13_pyppmd/.tmp-tovs7_t0/pyppmd-1.1.1+ds-cp313-cp313-linux_aarch64.whl' and adding 'build/bdist.linux-aarch64/wheel' to it
+creating '/build/reproducible-path/python-pyppmd-1.1.1+ds/.pybuild/cpython3_3.13_pyppmd/.tmp-jfdjurbb/pyppmd-1.1.1+ds-cp313-cp313-linux_aarch64.whl' and adding 'build/bdist.linux-aarch64/wheel' to it
 adding 'pyppmd/__init__.py'
 adding 'pyppmd/py.typed'
 adding 'pyppmd/c/c_ppmd.py'
@@ -1005,21 +1041,21 @@
 -------------------------------------------------------------------------------------------- benchmark 'compress': 2 tests ---------------------------------------------------------------------------------------------
 Name (time in ms)                                          Min                 Max                Mean            StdDev              Median               IQR            Outliers     OPS            Rounds  Iterations
 ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
-test_benchmark_text_compress[PPMd H-7-6-16777216]     146.7740 (1.0)      159.9226 (1.0)      151.6085 (1.0)      5.5875 (1.78)     147.9167 (1.0)      9.5909 (1.45)          2;0  6.5959 (1.0)           7           1
-test_benchmark_text_compress[PPMd I-8-8-8388608]      164.9764 (1.12)     171.8086 (1.07)     168.0436 (1.11)     3.1360 (1.0)      167.4324 (1.13)     6.6356 (1.0)           2;0  5.9508 (0.90)          6           1
+test_benchmark_text_compress[PPMd H-7-6-16777216]     129.4952 (1.0)      135.7814 (1.0)      132.4187 (1.0)      2.3010 (1.0)      131.7358 (1.0)      3.8180 (1.79)          3;0  7.5518 (1.0)           8           1
+test_benchmark_text_compress[PPMd I-8-8-8388608]      147.7248 (1.14)     155.4945 (1.15)     150.5707 (1.14)     2.5017 (1.09)     150.4680 (1.14)     2.1379 (1.0)           2;1  6.6414 (0.88)          7           1
 ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
 
 --------------------------------------------------------------------------------------------- benchmark 'decompress': 2 tests ----------------------------------------------------------------------------------------------
 Name (time in ms)                                            Min                 Max                Mean             StdDev              Median                IQR            Outliers     OPS            Rounds  Iterations
 ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
-test_benchmark_text_decompress[PPMd I-8-8-8388608]      259.6523 (1.0)      299.4953 (1.0)      289.6349 (1.04)     17.0362 (1.0)      298.0462 (1.11)     15.3095 (1.08)          1;1  3.4526 (0.96)          5           1
-test_benchmark_text_decompress[PPMd H-7-6-16777216]     266.7006 (1.03)     319.8053 (1.07)     278.8687 (1.0)      22.9154 (1.35)     269.2604 (1.0)      14.1739 (1.0)           1;1  3.5859 (1.0)           5           1
+test_benchmark_text_decompress[PPMd I-8-8-8388608]      247.5868 (1.0)      315.5747 (1.13)     288.0611 (1.04)     28.8384 (19.99)    288.6086 (1.04)     47.9950 (19.42)         1;0  3.4715 (0.96)          5           1
+test_benchmark_text_decompress[PPMd H-7-6-16777216]     275.4479 (1.11)     278.5962 (1.0)      277.2997 (1.0)       1.4429 (1.0)      278.1135 (1.0)       2.4716 (1.0)           1;0  3.6062 (1.0)           5           1
 ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
 
 Legend:
   Outliers: 1 Standard Deviation from Mean; 1.5 IQR (InterQuartile Range) from 1st Quartile and 3rd Quartile.
   OPS: Operations Per Second, computed as 1 / Mean
-====================== 26 passed, 2 deselected in 12.52s =======================
+====================== 26 passed, 2 deselected in 12.46s =======================
 I: pybuild base:311: cd /build/reproducible-path/python-pyppmd-1.1.1+ds/.pybuild/cpython3_3.13_pyppmd/build; python3.13 -m pytest -k "not test_ppmd7_fuzzer and not test_ppmd8_fuzzer"
 ============================= test session starts ==============================
 platform linux -- Python 3.13.2, pytest-8.3.4, pluggy-1.5.0
@@ -1039,21 +1075,21 @@
 -------------------------------------------------------------------------------------------- benchmark 'compress': 2 tests ---------------------------------------------------------------------------------------------
 Name (time in ms)                                          Min                 Max                Mean            StdDev              Median               IQR            Outliers     OPS            Rounds  Iterations
 ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
-test_benchmark_text_compress[PPMd H-7-6-16777216]     124.2978 (1.0)      140.0341 (1.0)      132.1909 (1.0)      5.4524 (1.10)     132.4618 (1.0)      7.9322 (1.39)          3;0  7.5648 (1.0)           8           1
-test_benchmark_text_compress[PPMd I-8-8-8388608]      145.7624 (1.17)     160.3923 (1.15)     151.2168 (1.14)     4.9705 (1.0)      150.2944 (1.13)     5.6949 (1.0)           2;0  6.6130 (0.87)          7           1
+test_benchmark_text_compress[PPMd H-7-6-16777216]     147.8212 (1.0)      155.2128 (1.0)      152.6416 (1.0)      2.9192 (1.0)      154.1745 (1.0)      4.6903 (1.0)           1;0  6.5513 (1.0)           7           1
+test_benchmark_text_compress[PPMd I-8-8-8388608]      162.3416 (1.10)     174.9185 (1.13)     168.4692 (1.10)     4.3031 (1.47)     169.0395 (1.10)     4.8011 (1.02)          2;0  5.9358 (0.91)          6           1
 ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
 
 --------------------------------------------------------------------------------------------- benchmark 'decompress': 2 tests ----------------------------------------------------------------------------------------------
 Name (time in ms)                                            Min                 Max                Mean             StdDev              Median                IQR            Outliers     OPS            Rounds  Iterations
 ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
-test_benchmark_text_decompress[PPMd H-7-6-16777216]     193.3869 (1.0)      281.5318 (1.0)      244.1699 (1.0)      34.9486 (2.85)     253.0640 (1.0)      55.2176 (2.99)          2;0  4.0955 (1.0)           6           1
-test_benchmark_text_decompress[PPMd I-8-8-8388608]      269.9374 (1.40)     299.7462 (1.06)     288.6090 (1.18)     12.2551 (1.0)      290.1064 (1.15)     18.4554 (1.0)           1;0  3.4649 (0.85)          5           1
+test_benchmark_text_decompress[PPMd I-8-8-8388608]      248.1086 (1.0)      304.1091 (1.03)     283.6035 (1.01)     21.7393 (1.32)     291.1977 (1.02)     25.8592 (1.01)          1;0  3.5260 (0.99)          5           1
+test_benchmark_text_decompress[PPMd H-7-6-16777216]     256.3613 (1.03)     296.6514 (1.0)      280.5446 (1.0)      16.4274 (1.0)      284.3444 (1.0)      25.5013 (1.0)           1;0  3.5645 (1.0)           5           1
 ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
 
 Legend:
   Outliers: 1 Standard Deviation from Mean; 1.5 IQR (InterQuartile Range) from 1st Quartile and 3rd Quartile.
   OPS: Operations Per Second, computed as 1 / Mean
-====================== 26 passed, 2 deselected in 12.47s =======================
+====================== 26 passed, 2 deselected in 12.89s =======================
    create-stamp debian/debhelper-build-stamp
    dh_testroot -O--buildsystem=pybuild
    dh_prep -O--buildsystem=pybuild
@@ -1082,8 +1118,8 @@
    dh_gencontrol -O--buildsystem=pybuild
    dh_md5sums -O--buildsystem=pybuild
    dh_builddeb -O--buildsystem=pybuild
-dpkg-deb: building package 'python3-pyppmd' in '../python3-pyppmd_1.1.1+ds-1_arm64.deb'.
 dpkg-deb: building package 'python3-pyppmd-dbgsym' in '../python3-pyppmd-dbgsym_1.1.1+ds-1_arm64.deb'.
+dpkg-deb: building package 'python3-pyppmd' in '../python3-pyppmd_1.1.1+ds-1_arm64.deb'.
  dpkg-genbuildinfo --build=binary -O../python-pyppmd_1.1.1+ds-1_arm64.buildinfo
  dpkg-genchanges --build=binary -O../python-pyppmd_1.1.1+ds-1_arm64.changes
 dpkg-genchanges: info: binary-only upload (no source code included)
@@ -1091,12 +1127,14 @@
 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/103483/tmp/hooks/B01_cleanup starting
+I: user script /srv/workspace/pbuilder/103483/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/4161396 and its subdirectories
-I: Current time: Mon Feb 24 00:15:53 -12 2025
-I: pbuilder-time-stamp: 1740399353
+I: removing directory /srv/workspace/pbuilder/103483 and its subdirectories
+I: Current time: Mon Mar 30 08:40:28 +14 2026
+I: pbuilder-time-stamp: 1774809628