Diff of the two buildlogs:

--
--- b1/build.log	2025-03-22 21:34:15.076984943 +0000
+++ b2/build.log	2025-03-22 21:38:37.637188037 +0000
@@ -1,6 +1,6 @@
 I: pbuilder: network access will be disabled during build
-I: Current time: Fri Apr 24 15:55:59 -12 2026
-I: pbuilder-time-stamp: 1777089359
+I: Current time: Sun Mar 23 11:34:17 +14 2025
+I: pbuilder-time-stamp: 1742679257
 I: Building the build Environment
 I: extracting base tarball [/var/cache/pbuilder/trixie-reproducible-base.tgz]
 I: copying local configuration
@@ -24,52 +24,84 @@
 dpkg-source: info: applying 0001-Fix-autopkgtest-regression-with-ruby3.3.patch
 I: Not using root during the build.
 I: Installing the build-deps
-I: user script /srv/workspace/pbuilder/3786629/tmp/hooks/D02_print_environment starting
+I: user script /srv/workspace/pbuilder/167049/tmp/hooks/D01_modify_environment starting
+debug: Running on ionos1-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 22 21:34 /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/167049/tmp/hooks/D01_modify_environment finished
+I: user script /srv/workspace/pbuilder/167049/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='trixie'
-  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=trixie
+  EUID=0
+  FUNCNAME=([0]="Echo" [1]="main")
+  GROUPS=()
+  HOME=/root
+  HOSTNAME=i-capture-the-hostname
+  HOSTTYPE=x86_64
+  HOST_ARCH=amd64
   IFS=' 	
   '
-  INVOCATION_ID='3ff43ffe33cc42aba43bf1c80e21f8ab'
-  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='3786629'
-  PS1='# '
-  PS2='> '
+  INVOCATION_ID=60ef47dde457407d82822fcb75f619ec
+  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=167049
   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.IQ79jtwU/pbuilderrc_dliX --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.IQ79jtwU/b1 --logfile b1/build.log docdiff_0.6.1-1.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.IQ79jtwU/pbuilderrc_VHN7 --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.IQ79jtwU/b2 --logfile b2/build.log docdiff_0.6.1-1.dsc'
+  SUDO_GID=110
+  SUDO_UID=105
+  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/3786629/tmp/hooks/D02_print_environment finished
+  lrwxrwxrwx 1 root root 7 Mar  4 11:20 /bin -> usr/bin
+I: user script /srv/workspace/pbuilder/167049/tmp/hooks/D02_print_environment finished
  -> Attempting to satisfy build-dependencies
  -> Creating pbuilder-satisfydepends-dummy package
 Package: pbuilder-satisfydepends-dummy
@@ -170,7 +202,7 @@
 Get: 57 http://deb.debian.org/debian trixie/main amd64 libruby amd64 1:3.3+b1 [5440 B]
 Get: 58 http://deb.debian.org/debian trixie/main amd64 ruby3.3-dev amd64 3.3.7-1 [1038 kB]
 Get: 59 http://deb.debian.org/debian trixie/main amd64 ruby-dev amd64 1:3.3+b1 [5576 B]
-Fetched 33.9 MB in 3s (11.4 MB/s)
+Fetched 33.9 MB in 10s (3258 kB/s)
 Preconfiguring packages ...
 Selecting previously unselected package sgml-base.
 (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 ... 19785 files and directories currently installed.)
@@ -431,7 +463,11 @@
 Building tag database...
  -> Finished parsing the build-deps
 I: Building the package
-I: Running cd /build/reproducible-path/docdiff-0.6.1/ && 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  > ../docdiff_0.6.1-1_source.changes
+I: user script /srv/workspace/pbuilder/167049/tmp/hooks/A99_set_merged_usr starting
+Not re-configuring usrmerge for trixie
+I: user script /srv/workspace/pbuilder/167049/tmp/hooks/A99_set_merged_usr finished
+hostname: Name or service not known
+I: Running cd /build/reproducible-path/docdiff-0.6.1/ && 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  > ../docdiff_0.6.1-1_source.changes
 dpkg-buildpackage: info: source package docdiff
 dpkg-buildpackage: info: source version 0.6.1-1
 dpkg-buildpackage: info: source distribution unstable
@@ -441,7 +477,7 @@
  debian/rules clean
 dh clean
    dh_auto_clean
-	make -j42 distclean
+	make -j20 distclean
 make[1]: Entering directory '/build/reproducible-path/docdiff-0.6.1'
 rm -fr ChangeLog readme.en.html readme.ja.html index.en.html index.ja.html
 rm -fr  charstring_test.log  diff_test.log  difference_test.log  docdiff_test.log  document_test.log  view_test.log  viewdiff_test.log 
@@ -459,7 +495,7 @@
 /usr/bin/docbook-to-man debian/manpage.sgml > docdiff.1
 make[1]: Leaving directory '/build/reproducible-path/docdiff-0.6.1'
    dh_auto_test
-	make -j42 test
+	make -j20 test
 make[1]: Entering directory '/build/reproducible-path/docdiff-0.6.1'
 ruby -I./lib test/charstring_test.rb | tee charstring_test.log
 ruby -I./lib test/diff_test.rb | tee diff_test.log
@@ -468,28 +504,34 @@
 ruby -I./lib test/document_test.rb | tee document_test.log
 ruby -I./lib test/view_test.rb | tee view_test.log
 ruby -I./lib test/viewdiff_test.rb | tee viewdiff_test.log
-Loaded suite test/diff_testLoaded suite test/difference_test
+Loaded suite test/charstring_test
+StartedLoaded suite test/diff_test
 Started
-Started
-Finished in 0.001500619 seconds.
+Finished in 0.035763399 seconds.
 -------------------------------------------------------------------------------
 1 tests, 4 assertions, 0 failures, 0 errors, 0 pendings, 0 omissions, 0 notifications
 100% passed
 -------------------------------------------------------------------------------
-666.39 tests/s, 2665.57 assertions/s
-
-Finished in 0.004854733 seconds.
+27.96 tests/s, 111.85 assertions/s
+Loaded suite test/docdiff_test
+Started
+Loaded suite test/difference_test
+Started
+Finished in 0.160934187 seconds.
 -------------------------------------------------------------------------------
 4 tests, 6 assertions, 0 failures, 0 errors, 0 pendings, 0 omissions, 0 notifications
 100% passed
 -------------------------------------------------------------------------------
-823.94 tests/s, 1235.91 assertions/s
-Loaded suite test/view_test
-StartedLoaded suite test/document_testLoaded suite test/charstring_test
-Started
-StartedLoaded suite test/docdiff_test
-Started
+24.85 tests/s, 37.28 assertions/s
 Loaded suite test/viewdiff_test
+StartedLoaded suite test/document_test
+StartedFinished in 1.326227491 seconds.
+-------------------------------------------------------------------------------
+12 tests, 12 assertions, 0 failures, 0 errors, 0 pendings, 0 omissions, 0 notifications
+100% passed
+-------------------------------------------------------------------------------
+9.05 tests/s, 9.05 assertions/s
+Loaded suite test/view_test
 Started
 F
 ===============================================================================
@@ -574,6 +616,13 @@
    "bcd</p><p class=\"body\"><span class=\"del\"><del>a<br />\n" +
    "b</del></span>cd</p></blockquote></li>\n",
 ?  "<li class=\"entry\"><p class=\"position\">(2),1-2</p><blockquote class=\"body\"><p class=\"body\">cde</p><p class=\"body\">cd<span class=\"add\"><ins>X<br />\n" +
+Finished in 3.978825566 seconds.
+-------------------------------------------------------------------------------
+146 tests, 146 assertions, 0 failures, 0 errors, 0 pendings, 0 omissions, 0 notifications
+100% passed
+-------------------------------------------------------------------------------
+36.69 tests/s, 36.69 assertions/s
+
 -  "</p><p class=\"body\">cd<span class=\"add\"><ins>X<br />\n" +
 -  "Y</ins></span>e<br />\n" +
 ?  "Y</ins></span>e</p></blockquote></li>\n",
@@ -733,6 +782,13 @@
 <["1-2,(1) <->a\n" + "b</->cd\n",
  "(2),1-2 cd<+>X\n" + "Y</+>e\n",
  "3,3 e<!->f</!-><!+>F</!+>\n"]>
+Finished in 3.858569646 seconds.
+-------------------------------------------------------------------------------
+117 tests, 117 assertions, 0 failures, 0 errors, 0 pendings, 0 omissions, 0 notifications
+100% passed
+-------------------------------------------------------------------------------
+30.32 tests/s, 30.32 assertions/s
+
 
 diff:
   ["1-2,(1) <->a\n" + "b</->cd\n",
@@ -761,13 +817,7 @@
   ["1-2,(1) a\n" + "bcd<->a\n" + "b</->cd\n",
 ?  "(2),1-2 cde\n" + "cd<+>X\n" + "Y</+>e\n" + "\n",
 ?  "3,3 e\n" + "<!->f</!->\n" + "e\n" + "<!+>F</!+>\n" + "\n"]
-===============================================================================Finished in 0.168643953 seconds.
--------------------------------------------------------------------------------
-12 tests, 12 assertions, 0 failures, 0 errors, 0 pendings, 0 omissions, 0 notifications
-100% passed
--------------------------------------------------------------------------------
-71.16 tests/s, 71.16 assertions/s
-
+===============================================================================
 F
 ===============================================================================
 Failure: test_to_wdiff_digest(TC_DocDiff_View)
@@ -820,33 +870,19 @@
 ?  "(2),1-2\n" + "cde\n" + "\n" + "cd{+X\n" + "Y+}e\n" + "\n" + "----\n",
 ?  "3,3\n" + "e\n" + "[-f-]\n" + "\n" + "e\n" + "{+F+}\n" + "\n" + "----\n"]
 ===============================================================================
-Finished in 0.198934912 seconds.
+Finished in 3.470621837 seconds.
 -------------------------------------------------------------------------------
 51 tests, 67 assertions, 10 failures, 0 errors, 0 pendings, 0 omissions, 0 notifications
 80.3922% passed
 -------------------------------------------------------------------------------
-256.37 tests/s, 336.79 assertions/s
-
-Finished in 0.285978941 seconds.
--------------------------------------------------------------------------------
-146 tests, 146 assertions, 0 failures, 0 errors, 0 pendings, 0 omissions, 0 notifications
-100% passed
--------------------------------------------------------------------------------
-510.53 tests/s, 510.53 assertions/s
-
-Finished in 0.287443746 seconds.
--------------------------------------------------------------------------------
-117 tests, 117 assertions, 0 failures, 0 errors, 0 pendings, 0 omissions, 0 notifications
-100% passed
--------------------------------------------------------------------------------
-407.04 tests/s, 407.04 assertions/s
+14.69 tests/s, 19.30 assertions/s
 
-Finished in 0.976021302 seconds.
+Finished in 11.943402689 seconds.
 -------------------------------------------------------------------------------
 15 tests, 15 assertions, 0 failures, 0 errors, 0 pendings, 0 omissions, 0 notifications
 100% passed
 -------------------------------------------------------------------------------
-15.37 tests/s, 15.37 assertions/s
+1.26 tests/s, 1.26 assertions/s
 make[1]: Leaving directory '/build/reproducible-path/docdiff-0.6.1'
    create-stamp debian/debhelper-build-stamp
    dh_prep
@@ -931,12 +967,14 @@
 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/167049/tmp/hooks/B01_cleanup starting
+I: user script /srv/workspace/pbuilder/167049/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/3786629 and its subdirectories
-I: Current time: Fri Apr 24 15:57:13 -12 2026
-I: pbuilder-time-stamp: 1777089433
+I: removing directory /srv/workspace/pbuilder/167049 and its subdirectories
+I: Current time: Sun Mar 23 11:38:36 +14 2025
+I: pbuilder-time-stamp: 1742679516