Diff of the two buildlogs:

--
--- b1/build.log	2023-04-12 16:37:59.464882191 +0000
+++ b2/build.log	2023-04-12 16:40:54.357209967 +0000
@@ -1,6 +1,6 @@
 I: pbuilder: network access will be disabled during build
-I: Current time: Tue May 14 10:58:30 -12 2024
-I: pbuilder-time-stamp: 1715727510
+I: Current time: Thu Apr 13 06:38:04 +14 2023
+I: pbuilder-time-stamp: 1681317484
 I: Building the build Environment
 I: extracting base tarball [/var/cache/pbuilder/bookworm-reproducible-base.tgz]
 I: copying local configuration
@@ -16,7 +16,7 @@
 I: copying [./ruby-sequel_5.63.0.orig.tar.gz]
 I: copying [./ruby-sequel_5.63.0-1.debian.tar.xz]
 I: Extracting source
-gpgv: Signature made Wed Dec  7 00:44:54 2022 -12
+gpgv: Signature made Thu Dec  8 02:44:54 2022 +14
 gpgv:                using RSA key 8ED6C3F8BAC9DB7FC130A870F823A2729883C97C
 gpgv:                issuer "kanashiro@debian.org"
 gpgv: Can't check signature: No public key
@@ -28,11 +28,20 @@
 dpkg-source: info: applying 0001-specs-Use-require-instead-of-require_relative.patch
 I: Not using root during the build.
 I: Installing the build-deps
-I: user script /srv/workspace/pbuilder/8156/tmp/hooks/D02_print_environment starting
+I: user script /srv/workspace/pbuilder/29597/tmp/hooks/D01_modify_environment starting
+debug: Running on codethink14-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
+lrwxrwxrwx 1 root root 4 Jan  6 03:20 /bin/sh -> dash
+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/29597/tmp/hooks/D01_modify_environment finished
+I: user script /srv/workspace/pbuilder/29597/tmp/hooks/D02_print_environment starting
 I: set
   BUILDDIR='/build'
-  BUILDUSERGECOS='first user,first room,first work-phone,first home-phone,first other'
-  BUILDUSERNAME='pbuilder1'
+  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=8'
@@ -42,38 +51,38 @@
   IFS=' 	
   '
   LANG='C'
-  LANGUAGE='en_US:en'
+  LANGUAGE='nl_BE:nl'
   LC_ALL='C'
   MAIL='/var/mail/root'
   OPTIND='1'
-  PATH='/usr/sbin:/usr/bin:/sbin:/bin:/usr/games'
+  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'
-  PPID='8156'
+  PPID='29597'
   PS1='# '
   PS2='> '
   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.L1bp3VKe/pbuilderrc_oG4q --distribution bookworm --hookdir /etc/pbuilder/first-build-hooks --debbuildopts -b --basetgz /var/cache/pbuilder/bookworm-reproducible-base.tgz --buildresult /srv/reproducible-results/rbuild-debian/r-b-build.L1bp3VKe/b1 --logfile b1/build.log ruby-sequel_5.63.0-1.dsc'
+  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.L1bp3VKe/pbuilderrc_hgBH --distribution bookworm --hookdir /etc/pbuilder/rebuild-hooks --debbuildopts -b --basetgz /var/cache/pbuilder/bookworm-reproducible-base.tgz --buildresult /srv/reproducible-results/rbuild-debian/r-b-build.L1bp3VKe/b2 --logfile b2/build.log --extrapackages usrmerge ruby-sequel_5.63.0-1.dsc'
   SUDO_GID='117'
   SUDO_UID='110'
   SUDO_USER='jenkins'
   TERM='unknown'
-  TZ='/usr/share/zoneinfo/Etc/GMT+12'
+  TZ='/usr/share/zoneinfo/Etc/GMT-14'
   USER='root'
   USERNAME='root'
   _='/usr/bin/systemd-run'
   http_proxy='http://192.168.101.16:3128'
 I: uname -a
-  Linux codethink15-arm64 4.15.0-208-generic #220-Ubuntu SMP Mon Mar 20 14:28:12 UTC 2023 aarch64 GNU/Linux
+  Linux i-capture-the-hostname 4.15.0-208-generic #220-Ubuntu SMP Mon Mar 20 14:28:12 UTC 2023 aarch64 GNU/Linux
 I: ls -l /bin
-  lrwxrwxrwx 1 root root 7 May 12 04:47 /bin -> usr/bin
-I: user script /srv/workspace/pbuilder/8156/tmp/hooks/D02_print_environment finished
+  lrwxrwxrwx 1 root root 7 Apr 11 00:24 /bin -> usr/bin
+I: user script /srv/workspace/pbuilder/29597/tmp/hooks/D02_print_environment finished
  -> Attempting to satisfy build-dependencies
  -> Creating pbuilder-satisfydepends-dummy package
 Package: pbuilder-satisfydepends-dummy
@@ -279,7 +288,7 @@
 Get: 144 http://deb.debian.org/debian bookworm/main arm64 ruby-rspec-mocks all 3.12.0c0e1m1s0-1 [79.5 kB]
 Get: 145 http://deb.debian.org/debian bookworm/main arm64 ruby-rspec all 3.12.0c0e1m1s0-1 [5084 B]
 Get: 146 http://deb.debian.org/debian bookworm/main arm64 ruby-sqlite3 arm64 1.4.2-4+b3 [41.4 kB]
-Fetched 46.8 MB in 1s (35.6 MB/s)
+Fetched 46.8 MB in 1s (37.6 MB/s)
 debconf: delaying package configuration, since apt-utils is not installed
 Selecting previously unselected package libpython3.11-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 ... 19616 files and directories currently installed.)
@@ -886,8 +895,17 @@
 Writing extended state information...
 Building tag database...
  -> Finished parsing the build-deps
+Reading package lists...
+Building dependency tree...
+Reading state information...
+usrmerge is already the newest version (35).
+0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
 I: Building the package
-I: Running cd /build/ruby-sequel-5.63.0/ && 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  > ../ruby-sequel_5.63.0-1_source.changes
+I: user script /srv/workspace/pbuilder/29597/tmp/hooks/A99_set_merged_usr starting
+Re-configuring usrmerge...
+I: user script /srv/workspace/pbuilder/29597/tmp/hooks/A99_set_merged_usr finished
+hostname: Temporary failure in name resolution
+I: Running cd /build/ruby-sequel-5.63.0/ && 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  > ../ruby-sequel_5.63.0-1_source.changes
 dpkg-buildpackage: info: source package ruby-sequel
 dpkg-buildpackage: info: source version 5.63.0-1
 dpkg-buildpackage: info: source distribution unstable
@@ -923,7 +941,7 @@
 	dh_ruby --build
    dh_auto_test -O--buildsystem=ruby
 	dh_ruby --test
-	rm -fr -- /tmp/dh-xdg-rundir-6S1IgTm6
+	rm -fr -- /tmp/dh-xdg-rundir-jAJBPjFm
    create-stamp debian/debhelper-build-stamp
    dh_testroot -O--buildsystem=ruby
    dh_prep -O--buildsystem=ruby
@@ -1239,34 +1257,34 @@
 
 RUBYLIB=/build/ruby-sequel-5.63.0/debian/ruby-sequel/usr/lib/ruby/vendor_ruby:. GEM_PATH=/build/ruby-sequel-5.63.0/debian/ruby-sequel/usr/share/rubygems-integration/all:/build/ruby-sequel-5.63.0/debian/.debhelper/generated/_source/home/.local/share/gem/ruby/3.1.0:/var/lib/gems/3.1.0:/usr/local/lib/ruby/gems/3.1.0:/usr/lib/ruby/gems/3.1.0:/usr/lib/aarch64-linux-gnu/ruby/gems/3.1.0:/usr/share/rubygems-integration/3.1.0:/usr/share/rubygems-integration/all:/usr/lib/aarch64-linux-gnu/rubygems-integration/3.1.0 ruby3.1 debian/ruby-tests.rb
 /usr/bin/ruby3.1 -w spec/core_spec.rb
-Run options: --seed 1502
+Run options: --seed 10364
 
 # Running:
 
 ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................
 
-Finished in 4.355923s, 471.0827 runs/s, 1277.8004 assertions/s.
+Finished in 5.313624s, 386.1771 runs/s, 1047.4960 assertions/s.
 
 2052 runs, 5566 assertions, 0 failures, 0 errors, 0 skips
 /usr/bin/ruby3.1 -w spec/model_spec.rb
-Run options: --seed 55168
+Run options: --seed 25319
 
 # Running:
 
 ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................
 
-Finished in 11.659894s, 125.3871 runs/s, 329.5913 assertions/s.
+Finished in 12.411355s, 117.7954 runs/s, 309.6358 assertions/s.
 
 1462 runs, 3843 assertions, 0 failures, 0 errors, 0 skips
 /usr/bin/ruby3.1 -w spec/plugin_spec.rb
 /usr/lib/aarch64-linux-gnu/rubygems-integration/3.1.0/gems/nokogiri-1.13.10/lib/nokogiri/version/info.rb:85: warning: possibly useless use of a variable in void context
-Run options: --seed 14729
+Run options: --seed 2071
 
 # Running:
 
 ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................
 
-Finished in 46.231307s, 76.1821 runs/s, 245.0720 assertions/s.
+Finished in 46.030118s, 76.5151 runs/s, 246.1432 assertions/s.
 
 3522 runs, 11330 assertions, 0 failures, 0 errors, 0 skips
 
@@ -1334,12 +1352,14 @@
 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/29597/tmp/hooks/B01_cleanup starting
+I: user script /srv/workspace/pbuilder/29597/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/8156 and its subdirectories
-I: Current time: Tue May 14 11:00:58 -12 2024
-I: pbuilder-time-stamp: 1715727658
+I: removing directory /srv/workspace/pbuilder/29597 and its subdirectories
+I: Current time: Thu Apr 13 06:40:53 +14 2023
+I: pbuilder-time-stamp: 1681317653