Diff of the two buildlogs:

--
--- b1/build.log	2025-03-08 05:26:15.741130734 +0000
+++ b2/build.log	2025-03-08 05:27:06.014851045 +0000
@@ -1,6 +1,6 @@
 I: pbuilder: network access will be disabled during build
-I: Current time: Fri Mar  7 17:20:09 -12 2025
-I: pbuilder-time-stamp: 1741411209
+I: Current time: Sat Apr 11 01:49:16 +14 2026
+I: pbuilder-time-stamp: 1775821756
 I: Building the build Environment
 I: extracting base tarball [/var/cache/pbuilder/trixie-reproducible-base.tgz]
 I: copying local configuration
@@ -26,52 +26,84 @@
 dpkg-source: info: applying fix-broken-test-w-rails7.patch
 I: Not using root during the build.
 I: Installing the build-deps
-I: user script /srv/workspace/pbuilder/1207339/tmp/hooks/D02_print_environment starting
+I: user script /srv/workspace/pbuilder/1418514/tmp/hooks/D01_modify_environment starting
+debug: Running on ionos5-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 Apr 10 11:49 /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/1418514/tmp/hooks/D01_modify_environment finished
+I: user script /srv/workspace/pbuilder/1418514/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=20 '
-  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=42 '
+  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='9d57ee9baa5a4d9cb3795fb6d5312d6c'
-  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='1207339'
-  PS1='# '
-  PS2='> '
+  INVOCATION_ID=b0729f8abece4ba5932e613b944bd8d6
+  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=1418514
   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.WAwgbtil/pbuilderrc_l7cm --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.WAwgbtil/b1 --logfile b1/build.log ruby-actionpack-action-caching_1.2.2-4.dsc'
-  SUDO_GID='110'
-  SUDO_UID='105'
-  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.WAwgbtil/pbuilderrc_yXZ2 --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.WAwgbtil/b2 --logfile b2/build.log ruby-actionpack-action-caching_1.2.2-4.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://213.165.73.152:3128
 I: uname -a
-  Linux ionos1-amd64 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 6.12.12+bpo-amd64 #1 SMP PREEMPT_DYNAMIC Debian 6.12.12-1~bpo12+1 (2025-02-23) 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/1207339/tmp/hooks/D02_print_environment finished
+  lrwxrwxrwx 1 root root 7 Nov 22  2024 /bin -> usr/bin
+I: user script /srv/workspace/pbuilder/1418514/tmp/hooks/D02_print_environment finished
  -> Attempting to satisfy build-dependencies
  -> Creating pbuilder-satisfydepends-dummy package
 Package: pbuilder-satisfydepends-dummy
@@ -296,7 +328,7 @@
 Get: 177 http://deb.debian.org/debian trixie/main amd64 ruby-sprockets all 4.2.1-3 [74.1 kB]
 Get: 178 http://deb.debian.org/debian trixie/main amd64 ruby-sprockets-rails all 3.5.2-2 [15.0 kB]
 Get: 179 http://deb.debian.org/debian trixie/main amd64 ruby-rails all 2:6.1.7.3+dfsg-13 [26.3 kB]
-Fetched 52.5 MB in 6s (9447 kB/s)
+Fetched 52.5 MB in 3s (17.7 MB/s)
 Preconfiguring packages ...
 Selecting previously unselected package libpython3.13-minimal:amd64.
 (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 ... 19800 files and directories currently installed.)
@@ -883,8 +915,8 @@
 Setting up tzdata (2025a-2) ...
 
 Current default time zone: 'Etc/UTC'
-Local time is now:      Sat Mar  8 05:23:43 UTC 2025.
-Universal Time is now:  Sat Mar  8 05:23:43 UTC 2025.
+Local time is now:      Fri Apr 10 11:49:48 UTC 2026.
+Universal Time is now:  Fri Apr 10 11:49:48 UTC 2026.
 Run 'dpkg-reconfigure tzdata' if you wish to change it.
 
 Setting up ruby-websocket-extensions (0.1.5-2) ...
@@ -1047,7 +1079,11 @@
 Building tag database...
  -> Finished parsing the build-deps
 I: Building the package
-I: Running cd /build/reproducible-path/ruby-actionpack-action-caching-1.2.2/ && 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-actionpack-action-caching_1.2.2-4_source.changes
+I: user script /srv/workspace/pbuilder/1418514/tmp/hooks/A99_set_merged_usr starting
+Not re-configuring usrmerge for trixie
+I: user script /srv/workspace/pbuilder/1418514/tmp/hooks/A99_set_merged_usr finished
+hostname: Name or service not known
+I: Running cd /build/reproducible-path/ruby-actionpack-action-caching-1.2.2/ && 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-actionpack-action-caching_1.2.2-4_source.changes
 dpkg-buildpackage: info: source package ruby-actionpack-action-caching
 dpkg-buildpackage: info: source version 1.2.2-4
 dpkg-buildpackage: info: source distribution unstable
@@ -1081,7 +1117,7 @@
 │ ruby-actionpack-action-caching: Installing files and building extensions for ruby3.3│
 └──────────────────────────────────────────────────────────────────────────────┘
 
-/usr/bin/ruby3.3 -S gem build --config-file /dev/null --verbose /tmp/d20250307-1262920-got9jq/gemspec
+/usr/bin/ruby3.3 -S gem build --config-file /dev/null --verbose /tmp/d20260411-1426464-gihk74/gemspec
 WARNING:  description and summary are identical
 WARNING:  open-ended dependency on actionpack (>= 4.0.0) is not recommended
   if actionpack is semantically versioned, use:
@@ -1096,7 +1132,7 @@
   Name: actionpack-action_caching
   Version: 1.2.2
   File: actionpack-action_caching-1.2.2.gem
-/usr/bin/ruby3.3 -S gem install --config-file /dev/null --verbose --local --verbose --no-document --ignore-dependencies --install-dir debian/ruby-actionpack-action-caching/usr/share/rubygems-integration/all /tmp/d20250307-1262920-got9jq/actionpack-action_caching-1.2.2.gem
+/usr/bin/ruby3.3 -S gem install --config-file /dev/null --verbose --local --verbose --no-document --ignore-dependencies --install-dir debian/ruby-actionpack-action-caching/usr/share/rubygems-integration/all /tmp/d20260411-1426464-gihk74/actionpack-action_caching-1.2.2.gem
 /build/reproducible-path/ruby-actionpack-action-caching-1.2.2/debian/ruby-actionpack-action-caching/usr/share/rubygems-integration/all/gems/actionpack-action_caching-1.2.2/lib/action_controller/action_caching.rb
 /build/reproducible-path/ruby-actionpack-action-caching-1.2.2/debian/ruby-actionpack-action-caching/usr/share/rubygems-integration/all/gems/actionpack-action_caching-1.2.2/lib/action_controller/caching/actions.rb
 /build/reproducible-path/ruby-actionpack-action-caching-1.2.2/debian/ruby-actionpack-action-caching/usr/share/rubygems-integration/all/gems/actionpack-action_caching-1.2.2/lib/actionpack/action_caching.rb
@@ -1133,50 +1169,50 @@
 /usr/bin/ruby3.3 -w -I"test" -w /usr/share/rubygems-integration/all/gems/rake-13.2.1/lib/rake/rake_test_loader.rb "test/caching_test.rb"  -v
 /usr/share/rubygems-integration/all/gems/rack-3.0.8/lib/rack/chunked.rb:6: warning: Rack::Chunked is deprecated and will be removed in Rack 3.1
 /usr/share/rubygems-integration/all/gems/activesupport-6.1.7.3/lib/active_support/core_ext/class/subclasses.rb:30: warning: method redefined; discarding old subclasses
-Run options: -v --seed 64936
+Run options: -v --seed 24588
 
 # Running:
 
-ActionCacheTest#test_redirect_is_not_cached = 2.29 s = .
-ActionCacheTest#test_lambda_arity_with_layout = 0.21 s = .
-ActionCacheTest#test_action_cache_with_custom_cache_path = 0.05 s = .
-ActionCacheTest#test_action_cache_with_symbol_format = 0.04 s = .
-ActionCacheTest#test_simple_runtime_error_returns_500_for_multiple_requests = 0.03 s = .
-ActionCacheTest#test_format_from_accept_header = 0.16 s = .
-ActionCacheTest#test_action_cache_with_layout_and_layout_cache_false_via_proc = 0.07 s = .
-ActionCacheTest#test_action_cache_with_layout_and_layout_cache_true_via_proc = 0.05 s = .
-ActionCacheTest#test_simple_action_not_cached = 0.06 s = .
-ActionCacheTest#test_four_oh_four_returns_404_for_multiple_requests = 0.04 s = .
-ActionCacheTest#test_action_cache_not_url_cache_path = 0.06 s = .
-ActionCacheTest#test_correct_content_type_is_returned_for_cache_hit = 0.03 s = .
-ActionCacheTest#test_action_cache_with_custom_cache_path_in_block = 0.12 s = .
-ActionCacheTest#test_action_cache_conditional_options = 0.02 s = .
-ActionCacheTest#test_cache_expiration_isnt_affected_by_request_format = 0.08 s = .
-ActionCacheTest#test_lambda_arity_with_cache_path = 0.06 s = .
+ActionCacheTest#test_action_cache_with_symbol_format = 0.14 s = .
+ActionCacheTest#test_action_cache_with_symbol_cache_path = 0.01 s = .
+ActionCacheTest#test_action_caching_plus_streaming = 0.00 s = .
+ActionCacheTest#test_lambda_arity_with_layout = 0.01 s = .
+ActionCacheTest#test_correct_content_type_is_returned_for_cache_hit_on_action_with_string_key = 0.00 s = .
+ActionCacheTest#test_correct_content_type_is_returned_for_cache_hit = 0.00 s = .
 ActionCacheTest#test_empty_path_is_normalized = 0.00 s = .
-ActionCacheTest#test_invalid_format_returns_not_acceptable = 0.08 s = .
-ActionCacheTest#test_action_cache_with_layout_and_layout_cache_false = 0.06 s = .
-ActionCacheTest#test_simple_action_cache_with_http_head = 0.17 s = .
-ActionCacheTest#test_action_cache_with_store_options = 0.05 s = .
-ActionCacheTest#test_simple_action_cache = 0.07 s = .
-ActionCacheTest#test_four_oh_four_renders_content = 0.03 s = .
-ActionCacheTest#test_action_cache_with_format_and_http_param = 0.08 s = .
-ActionCacheTest#test_explicit_html_format_is_used_for_fragment_path = 0.15 s = .
-ActionCacheTest#test_forbidden_is_not_cached = 0.04 s = .
-ActionCacheTest#test_action_cache_with_custom_cache_path_with_custom_object = 0.05 s = .
-ActionCacheTest#test_action_cache_with_layout = 0.06 s = .
-ActionCacheTest#test_action_cache_with_symbol_cache_path = 0.05 s = .
-ActionCacheTest#test_correct_content_type_is_returned_for_cache_hit_on_action_with_string_key = 0.05 s = .
-ActionCacheTest#test_cache_is_scoped_by_subdomain = 0.11 s = .
-ActionCacheTest#test_xml_version_of_resource_is_treated_as_different_cache = 0.09 s = .
-ActionCacheTest#test_correct_content_type_is_returned_for_cache_hit_on_action_with_string_key_from_proc = 0.05 s = .
-ActionCacheTest#test_record_not_found_returns_404_for_multiple_requests = 0.04 s = .
-ActionCacheTest#test_action_caching_plus_streaming = 0.05 s = .
-ActionCacheTest#test_cache_expiration_with_url_string = 0.08 s = .
-ActionCacheTest#test_file_extensions = 0.10 s = .
-ActionCacheTest#test_cache_expiration = 0.11 s = .
+ActionCacheTest#test_action_cache_with_layout_and_layout_cache_true_via_proc = 0.00 s = .
+ActionCacheTest#test_action_cache_with_format_and_http_param = 0.00 s = .
+ActionCacheTest#test_invalid_format_returns_not_acceptable = 0.01 s = .
+ActionCacheTest#test_cache_is_scoped_by_subdomain = 0.01 s = .
+ActionCacheTest#test_action_cache_with_custom_cache_path = 0.01 s = .
+ActionCacheTest#test_record_not_found_returns_404_for_multiple_requests = 0.00 s = .
+ActionCacheTest#test_action_cache_conditional_options = 0.00 s = .
+ActionCacheTest#test_lambda_arity_with_cache_path = 0.00 s = .
+ActionCacheTest#test_file_extensions = 0.00 s = .
+ActionCacheTest#test_simple_action_cache_with_http_head = 0.01 s = .
+ActionCacheTest#test_simple_action_cache = 0.00 s = .
+ActionCacheTest#test_action_cache_with_custom_cache_path_with_custom_object = 0.00 s = .
+ActionCacheTest#test_explicit_html_format_is_used_for_fragment_path = 0.01 s = .
+ActionCacheTest#test_four_oh_four_returns_404_for_multiple_requests = 0.00 s = .
+ActionCacheTest#test_action_cache_with_layout = 0.00 s = .
+ActionCacheTest#test_action_cache_with_store_options = 0.00 s = .
+ActionCacheTest#test_simple_action_not_cached = 0.01 s = .
+ActionCacheTest#test_cache_expiration = 0.01 s = .
+ActionCacheTest#test_correct_content_type_is_returned_for_cache_hit_on_action_with_string_key_from_proc = 0.00 s = .
+ActionCacheTest#test_format_from_accept_header = 0.01 s = .
+ActionCacheTest#test_action_cache_with_layout_and_layout_cache_false_via_proc = 0.00 s = .
+ActionCacheTest#test_simple_runtime_error_returns_500_for_multiple_requests = 0.00 s = .
+ActionCacheTest#test_cache_expiration_isnt_affected_by_request_format = 0.01 s = .
+ActionCacheTest#test_forbidden_is_not_cached = 0.00 s = .
+ActionCacheTest#test_four_oh_four_renders_content = 0.00 s = .
+ActionCacheTest#test_redirect_is_not_cached = 0.01 s = .
+ActionCacheTest#test_action_cache_with_custom_cache_path_in_block = 0.00 s = .
+ActionCacheTest#test_action_cache_with_layout_and_layout_cache_false = 0.00 s = .
+ActionCacheTest#test_action_cache_not_url_cache_path = 0.00 s = .
+ActionCacheTest#test_xml_version_of_resource_is_treated_as_different_cache = 0.01 s = .
+ActionCacheTest#test_cache_expiration_with_url_string = 0.01 s = .
 
-Finished in 5.042438s, 7.5360 runs/s, 38.8701 assertions/s.
+Finished in 0.320193s, 118.6784 runs/s, 612.1309 assertions/s.
 38 runs, 196 assertions, 0 failures, 0 errors, 0 skips
 
 ┌──────────────────────────────────────────────────────────────────────────────┐
@@ -1210,12 +1246,14 @@
 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/1418514/tmp/hooks/B01_cleanup starting
+I: user script /srv/workspace/pbuilder/1418514/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/1207339 and its subdirectories
-I: Current time: Fri Mar  7 17:26:14 -12 2025
-I: pbuilder-time-stamp: 1741411574
+I: removing directory /srv/workspace/pbuilder/1418514 and its subdirectories
+I: Current time: Sat Apr 11 01:50:04 +14 2026
+I: pbuilder-time-stamp: 1775821804