Diff of the two buildlogs:

--
--- b1/build.log	2023-04-14 05:02:26.020278713 +0000
+++ b2/build.log	2023-04-14 05:03:36.669141503 +0000
@@ -1,6 +1,6 @@
 I: pbuilder: network access will be disabled during build
-I: Current time: Thu Apr 13 17:01:14 -12 2023
-I: pbuilder-time-stamp: 1681448474
+I: Current time: Fri May 17 01:25:28 +14 2024
+I: pbuilder-time-stamp: 1715858728
 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-leaflet-rails_1.6.0+dfsg.orig.tar.xz]
 I: copying [./ruby-leaflet-rails_1.6.0+dfsg-4.debian.tar.xz]
 I: Extracting source
-gpgv: Signature made Sat Jan 21 21:21:30 2023 -12
+gpgv: Signature made Sun Jan 22 23:21:30 2023 +14
 gpgv:                using RSA key D30863E26020E543F4719A838F53E0193B294B75
 gpgv: Can't check signature: No public key
 dpkg-source: warning: cannot verify inline signature for ./ruby-leaflet-rails_1.6.0+dfsg-4.dsc: no acceptable signature found
@@ -29,11 +29,20 @@
 dpkg-source: info: applying fix-tests-for-rails61.patch
 I: Not using root during the build.
 I: Installing the build-deps
-I: user script /srv/workspace/pbuilder/903/tmp/hooks/D02_print_environment starting
+I: user script /srv/workspace/pbuilder/8611/tmp/hooks/D01_modify_environment starting
+debug: Running on codethink15-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  2023 /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/8611/tmp/hooks/D01_modify_environment finished
+I: user script /srv/workspace/pbuilder/8611/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'
@@ -43,38 +52,38 @@
   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='903'
+  PPID='8611'
   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.cNLmfkH5/pbuilderrc_PDmK --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.cNLmfkH5/b1 --logfile b1/build.log ruby-leaflet-rails_1.6.0+dfsg-4.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.cNLmfkH5/pbuilderrc_wrGL --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.cNLmfkH5/b2 --logfile b2/build.log --extrapackages usrmerge ruby-leaflet-rails_1.6.0+dfsg-4.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 codethink12-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 Apr 11 22:25 /bin -> usr/bin
-I: user script /srv/workspace/pbuilder/903/tmp/hooks/D02_print_environment finished
+  lrwxrwxrwx 1 root root 7 May 16 07:12 /bin -> usr/bin
+I: user script /srv/workspace/pbuilder/8611/tmp/hooks/D02_print_environment finished
  -> Attempting to satisfy build-dependencies
  -> Creating pbuilder-satisfydepends-dummy package
 Package: pbuilder-satisfydepends-dummy
@@ -302,7 +311,7 @@
 Get: 176 http://deb.debian.org/debian bookworm/main arm64 ruby-rspec-expectations all 3.12.0c0e1m1s0-1 [89.5 kB]
 Get: 177 http://deb.debian.org/debian bookworm/main arm64 ruby-rspec-mocks all 3.12.0c0e1m1s0-1 [79.5 kB]
 Get: 178 http://deb.debian.org/debian bookworm/main arm64 ruby-rspec all 3.12.0c0e1m1s0-1 [5084 B]
-Fetched 50.1 MB in 5s (10.8 MB/s)
+Fetched 50.1 MB in 5s (9971 kB/s)
 debconf: delaying package configuration, since apt-utils is not installed
 Selecting previously unselected package libpython3.11-minimal:arm64.
 (Reading database ... 
(Reading database ... 5%
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(Reading database ... 85%
(Reading database ... 90%
(Reading database ... 95%
(Reading database ... 100%
(Reading database ... 19616 files and directories currently installed.)
@@ -1037,8 +1046,17 @@
 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-leaflet-rails-1.6.0+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  > ../ruby-leaflet-rails_1.6.0+dfsg-4_source.changes
+I: user script /srv/workspace/pbuilder/8611/tmp/hooks/A99_set_merged_usr starting
+Re-configuring usrmerge...
+I: user script /srv/workspace/pbuilder/8611/tmp/hooks/A99_set_merged_usr finished
+hostname: Temporary failure in name resolution
+I: Running cd /build/ruby-leaflet-rails-1.6.0+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  > ../ruby-leaflet-rails_1.6.0+dfsg-4_source.changes
 dpkg-buildpackage: info: source package ruby-leaflet-rails
 dpkg-buildpackage: info: source version 1.6.0+dfsg-4
 dpkg-buildpackage: info: source distribution unstable
@@ -1072,7 +1090,7 @@
    dh_prep -O--buildsystem=ruby
    dh_auto_install --destdir=debian/ruby-leaflet-rails/ -O--buildsystem=ruby
 	dh_ruby --install /build/ruby-leaflet-rails-1.6.0\+dfsg/debian/ruby-leaflet-rails
-/usr/bin/ruby3.1 -S gem build --config-file /dev/null --verbose /tmp/d20230413-6064-6yamjt/gemspec
+/usr/bin/ruby3.1 -S gem build --config-file /dev/null --verbose /tmp/d20240517-13773-3296cn/gemspec
 Failed to load /dev/null because it doesn't contain valid YAML hash
 WARNING:  license value 'BSD' is invalid.  Use a license identifier from
 http://spdx.org/licenses or 'Nonstandard' for a nonstandard license.
@@ -1088,7 +1106,7 @@
   Name: leaflet-rails
   Version: 1.6.0
   File: leaflet-rails-1.6.0.gem
-/usr/bin/ruby3.1 -S gem install --config-file /dev/null --verbose --local --verbose --no-document --ignore-dependencies --install-dir debian/ruby-leaflet-rails/usr/share/rubygems-integration/all /tmp/d20230413-6064-6yamjt/leaflet-rails-1.6.0.gem
+/usr/bin/ruby3.1 -S gem install --config-file /dev/null --verbose --local --verbose --no-document --ignore-dependencies --install-dir debian/ruby-leaflet-rails/usr/share/rubygems-integration/all /tmp/d20240517-13773-3296cn/leaflet-rails-1.6.0.gem
 Failed to load /dev/null because it doesn't contain valid YAML hash
 /build/ruby-leaflet-rails-1.6.0+dfsg/debian/ruby-leaflet-rails/usr/share/rubygems-integration/all/gems/leaflet-rails-1.6.0/lib/leaflet-rails.rb
 /build/ruby-leaflet-rails-1.6.0+dfsg/debian/ruby-leaflet-rails/usr/share/rubygems-integration/all/gems/leaflet-rails-1.6.0/lib/leaflet-rails/version.rb
@@ -1142,32 +1160,32 @@
 
 All examples were filtered out; ignoring {:focus=>true}
 
-Randomized with seed 20189
+Randomized with seed 37550
 
 Leaflet::ViewHelpers
-  should generate a marker with a popup
+  should not set subdomains if nil
+  should generate a basic map with the correct latitude, longitude and zoom
   should override the method configuration options if set
+  should pass any configuration options to L.tileLayer if set
+  should have multiple map on single page
   should mix in view helpers on initialization
   should generate a map and add fitbounds
-  should generate many markers with popups and custom icons
+  should generate a marker with a popup
+  should generate a map and add a polyline
+  should generate a marker
   should not create the container tag if no_container is set
+  should set subdomains if present
   should set the method configuration options
   should generate a marker with a popup and a custom icon
-  should generate a marker
-  should generate a map and add a polyline
+  should generate many markers with popups and custom icons
   should generate a map and add a circle
-  should not set subdomains if nil
-  should have multiple map on single page
-  should set subdomains if present
   should not require a center option to generate a map
-  should generate a basic map with the correct latitude, longitude and zoom
-  should pass any configuration options to L.tileLayer if set
   should have defaults for icon options
 
-Finished in 0.04144 seconds (files took 3.72 seconds to load)
+Finished in 0.03242 seconds (files took 3.13 seconds to load)
 18 examples, 0 failures
 
-Randomized with seed 20189
+Randomized with seed 37550
 
 
 ┌──────────────────────────────────────────────────────────────────────────────┐
@@ -1202,12 +1220,14 @@
 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/8611/tmp/hooks/B01_cleanup starting
+I: user script /srv/workspace/pbuilder/8611/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/903 and its subdirectories
-I: Current time: Thu Apr 13 17:02:25 -12 2023
-I: pbuilder-time-stamp: 1681448545
+I: removing directory /srv/workspace/pbuilder/8611 and its subdirectories
+I: Current time: Fri May 17 01:26:35 +14 2024
+I: pbuilder-time-stamp: 1715858795