Diff of the two buildlogs:

--
--- b1/build.log	2025-02-28 20:42:48.407988892 +0000
+++ b2/build.log	2025-02-28 20:46:15.154747609 +0000
@@ -1,6 +1,6 @@
 I: pbuilder: network access will be disabled during build
-I: Current time: Thu Apr  2 15:04:51 -12 2026
-I: pbuilder-time-stamp: 1775185491
+I: Current time: Sat Mar  1 10:42:52 +14 2025
+I: pbuilder-time-stamp: 1740775372
 I: Building the build Environment
 I: extracting base tarball [/var/cache/pbuilder/unstable-reproducible-base.tgz]
 I: copying local configuration
@@ -22,52 +22,84 @@
 dpkg-source: info: unpacking el-mock-el_1.25.1+git20220625.6cfbc9d-7.debian.tar.xz
 I: Not using root during the build.
 I: Installing the build-deps
-I: user script /srv/workspace/pbuilder/164061/tmp/hooks/D02_print_environment starting
+I: user script /srv/workspace/pbuilder/2894820/tmp/hooks/D01_modify_environment starting
+debug: Running on ionos11-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 Feb 28 20:43 /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/2894820/tmp/hooks/D01_modify_environment finished
+I: user script /srv/workspace/pbuilder/2894820/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='unstable'
-  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=unstable
+  EUID=0
+  FUNCNAME=([0]="Echo" [1]="main")
+  GROUPS=()
+  HOME=/root
+  HOSTNAME=i-capture-the-hostname
+  HOSTTYPE=x86_64
+  HOST_ARCH=amd64
   IFS=' 	
   '
-  INVOCATION_ID='723e67f5171646e9b5a85a55fbd930e2'
-  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='164061'
-  PS1='# '
-  PS2='> '
+  INVOCATION_ID=f7d36dc8078b43f19fe13a29453133b1
+  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=2894820
   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.s1e7tH6i/pbuilderrc_MGAi --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.s1e7tH6i/b1 --logfile b1/build.log el-mock-el_1.25.1+git20220625.6cfbc9d-7.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://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.s1e7tH6i/pbuilderrc_dTZR --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.s1e7tH6i/b2 --logfile b2/build.log el-mock-el_1.25.1+git20220625.6cfbc9d-7.dsc'
+  SUDO_GID=111
+  SUDO_UID=106
+  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 ionos5-amd64 6.12.9+bpo-amd64 #1 SMP PREEMPT_DYNAMIC Debian 6.12.9-1~bpo12+1 (2025-01-19) x86_64 GNU/Linux
+  Linux i-capture-the-hostname 6.1.0-31-amd64 #1 SMP PREEMPT_DYNAMIC Debian 6.1.128-1 (2025-02-07) x86_64 GNU/Linux
 I: ls -l /bin
-  lrwxrwxrwx 1 root root 7 Nov 22  2024 /bin -> usr/bin
-I: user script /srv/workspace/pbuilder/164061/tmp/hooks/D02_print_environment finished
+  lrwxrwxrwx 1 root root 7 Nov 22 14:40 /bin -> usr/bin
+I: user script /srv/workspace/pbuilder/2894820/tmp/hooks/D02_print_environment finished
  -> Attempting to satisfy build-dependencies
  -> Creating pbuilder-satisfydepends-dummy package
 Package: pbuilder-satisfydepends-dummy
@@ -205,7 +237,7 @@
 Get: 96 http://deb.debian.org/debian unstable/main amd64 dh-elpa all 2.1.7 [30.4 kB]
 Get: 97 http://deb.debian.org/debian unstable/main amd64 dh-elpa-helper all 2.1.7 [8768 B]
 Get: 98 http://deb.debian.org/debian unstable/main amd64 elpa-ert-expectations all 0.2-5 [10.6 kB]
-Fetched 80.8 MB in 1s (100 MB/s)
+Fetched 80.8 MB in 10s (8345 kB/s)
 Preconfiguring packages ...
 Selecting previously unselected package netbase.
 (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 ... 19779 files and directories currently installed.)
@@ -633,7 +665,11 @@
 Building tag database...
  -> Finished parsing the build-deps
 I: Building the package
-I: Running cd /build/reproducible-path/el-mock-el-1.25.1+git20220625.6cfbc9d/ && 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  > ../el-mock-el_1.25.1+git20220625.6cfbc9d-7_source.changes
+I: user script /srv/workspace/pbuilder/2894820/tmp/hooks/A99_set_merged_usr starting
+Not re-configuring usrmerge for unstable
+I: user script /srv/workspace/pbuilder/2894820/tmp/hooks/A99_set_merged_usr finished
+hostname: Name or service not known
+I: Running cd /build/reproducible-path/el-mock-el-1.25.1+git20220625.6cfbc9d/ && 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  > ../el-mock-el_1.25.1+git20220625.6cfbc9d-7_source.changes
 dpkg-buildpackage: info: source package el-mock-el
 dpkg-buildpackage: info: source version 1.25.1+git20220625.6cfbc9d-7
 dpkg-buildpackage: info: source distribution unstable
@@ -662,72 +698,72 @@
 test/el-mock-test.el: Warning: `defadvice' is an obsolete macro (as of 30.1); use `advice-add' or `define-advice'
 test/el-mock-test.el: Warning: `defadvice' is an obsolete macro (as of 30.1); use `advice-add' or `define-advice'
 test/el-mock-test.el: Warning: `defadvice' is an obsolete macro (as of 30.1); use `advice-add' or `define-advice'
-Running 63 tests (2026-04-03 03:05:44+0000, selector `(not "preserve-stacktrace")')
-   passed   1/63  erte-test-00001 (0.000200 sec)
-   passed   2/63  erte-test-00002 (0.000122 sec)
-   passed   3/63  erte-test-00003 (0.000080 sec)
-   passed   4/63  erte-test-00004 (0.000125 sec)
-   passed   5/63  erte-test-00005 (0.000144 sec)
-   passed   6/63  erte-test-00006 (0.000122 sec)
-   passed   7/63  erte-test-00007 (0.000117 sec)
-   passed   8/63  erte-test-00008 (0.000118 sec)
-   passed   9/63  erte-test-00009 (0.000122 sec)
-   passed  10/63  erte-test-00010 (0.000105 sec)
-   passed  11/63  erte-test-00011 (0.000161 sec)
-   passed  12/63  erte-test-00012 (0.000219 sec)
-   passed  13/63  erte-test-00013 (0.000251 sec)
-   passed  14/63  erte-test-00014 (0.000143 sec)
-   passed  15/63  erte-test-00015 (0.000145 sec)
-   passed  16/63  erte-test-00016 (0.000159 sec)
-   passed  17/63  erte-test-00017 (0.000162 sec)
-   passed  18/63  erte-test-00018 (0.000160 sec)
-   passed  19/63  erte-test-00019 (0.000165 sec)
-   passed  20/63  erte-test-00020 (0.000173 sec)
-   passed  21/63  erte-test-00021 (0.000234 sec)
-   passed  22/63  erte-test-00022 (0.000157 sec)
-   passed  23/63  erte-test-00023 (0.000243 sec)
-   passed  24/63  erte-test-00024 (0.000171 sec)
-   passed  25/63  erte-test-00025 (0.000162 sec)
-   passed  26/63  erte-test-00026 (0.000099 sec)
-   passed  27/63  erte-test-00027 (0.000198 sec)
-   passed  28/63  erte-test-00028 (0.000210 sec)
-   passed  29/63  erte-test-00029 (0.000075 sec)
-   passed  30/63  erte-test-00030 (0.000077 sec)
-   passed  31/63  erte-test-00031 (0.000104 sec)
-   passed  32/63  erte-test-00032 (0.000098 sec)
-   passed  33/63  erte-test-00033 (0.000225 sec)
-   passed  34/63  erte-test-00034 (0.000150 sec)
-   passed  35/63  erte-test-00035 (0.000157 sec)
-   passed  36/63  erte-test-00036 (0.000144 sec)
-   passed  37/63  erte-test-00037 (0.000187 sec)
-   passed  38/63  erte-test-00038 (0.000179 sec)
-   passed  39/63  erte-test-00039 (0.000154 sec)
-   passed  40/63  erte-test-00040 (0.000164 sec)
-   passed  41/63  erte-test-00041 (0.000392 sec)
-   passed  42/63  erte-test-00042 (0.000467 sec)
-   passed  43/63  erte-test-00043 (0.000476 sec)
-   passed  44/63  erte-test-00044 (0.000547 sec)
-   passed  45/63  erte-test-00045 (0.000136 sec)
-   passed  46/63  erte-test-00046 (0.000150 sec)
-   passed  47/63  erte-test-00047 (0.000144 sec)
-   passed  48/63  erte-test-00048 (0.000104 sec)
-   passed  49/63  erte-test-00049 (0.000511 sec)
-   passed  50/63  erte-test-00050 (0.000428 sec)
-   passed  51/63  erte-test-00051 (0.000187 sec)
-   passed  52/63  erte-test-00052 (0.000175 sec)
-   passed  53/63  erte-test-00053 (0.000169 sec)
-   passed  54/63  erte-test-00054 (0.000171 sec)
-   passed  55/63  erte-test-00055 (0.000175 sec)
-   passed  56/63  erte-test-00056 (0.000175 sec)
-   passed  57/63  erte-test-00057 (0.000173 sec)
-   passed  58/63  erte-test-00058 (0.000157 sec)
-   passed  59/63  erte-test-00059 (0.000174 sec)
-   passed  60/63  erte-test-00060 (0.000172 sec)
-   passed  61/63  erte-test-00061 (0.000173 sec)
-   passed  62/63  erte-test-00062 (0.000156 sec)
-   passed  63/63  erte-test-00063 (0.000168 sec)
+Running 63 tests (2025-02-28 20:46:02+0000, selector `(not "preserve-stacktrace")')
+   passed   1/63  erte-test-00001 (0.000394 sec)
+   passed   2/63  erte-test-00002 (0.000193 sec)
+   passed   3/63  erte-test-00003 (0.000196 sec)
+   passed   4/63  erte-test-00004 (0.000177 sec)
+   passed   5/63  erte-test-00005 (0.000153 sec)
+   passed   6/63  erte-test-00006 (0.000206 sec)
+   passed   7/63  erte-test-00007 (0.000205 sec)
+   passed   8/63  erte-test-00008 (0.000241 sec)
+   passed   9/63  erte-test-00009 (0.000225 sec)
+   passed  10/63  erte-test-00010 (0.000208 sec)
+   passed  11/63  erte-test-00011 (0.000313 sec)
+   passed  12/63  erte-test-00012 (0.000403 sec)
+   passed  13/63  erte-test-00013 (0.000338 sec)
+   passed  14/63  erte-test-00014 (0.000191 sec)
+   passed  15/63  erte-test-00015 (0.000186 sec)
+   passed  16/63  erte-test-00016 (0.000186 sec)
+   passed  17/63  erte-test-00017 (0.000191 sec)
+   passed  18/63  erte-test-00018 (0.000201 sec)
+   passed  19/63  erte-test-00019 (0.000215 sec)
+   passed  20/63  erte-test-00020 (0.000247 sec)
+   passed  21/63  erte-test-00021 (0.000418 sec)
+   passed  22/63  erte-test-00022 (0.000251 sec)
+   passed  23/63  erte-test-00023 (0.000342 sec)
+   passed  24/63  erte-test-00024 (0.000310 sec)
+   passed  25/63  erte-test-00025 (0.000253 sec)
+   passed  26/63  erte-test-00026 (0.000147 sec)
+   passed  27/63  erte-test-00027 (0.000274 sec)
+   passed  28/63  erte-test-00028 (0.000293 sec)
+   passed  29/63  erte-test-00029 (0.000107 sec)
+   passed  30/63  erte-test-00030 (0.000109 sec)
+   passed  31/63  erte-test-00031 (0.000139 sec)
+   passed  32/63  erte-test-00032 (0.000142 sec)
+   passed  33/63  erte-test-00033 (0.000378 sec)
+   passed  34/63  erte-test-00034 (0.000242 sec)
+   passed  35/63  erte-test-00035 (0.000300 sec)
+   passed  36/63  erte-test-00036 (0.000224 sec)
+   passed  37/63  erte-test-00037 (0.000272 sec)
+   passed  38/63  erte-test-00038 (0.000307 sec)
+   passed  39/63  erte-test-00039 (0.000233 sec)
+   passed  40/63  erte-test-00040 (0.000247 sec)
+   passed  41/63  erte-test-00041 (0.000636 sec)
+   passed  42/63  erte-test-00042 (0.000658 sec)
+   passed  43/63  erte-test-00043 (0.000967 sec)
+   passed  44/63  erte-test-00044 (0.000833 sec)
+   passed  45/63  erte-test-00045 (0.000242 sec)
+   passed  46/63  erte-test-00046 (0.000222 sec)
+   passed  47/63  erte-test-00047 (0.000197 sec)
+   passed  48/63  erte-test-00048 (0.000140 sec)
+   passed  49/63  erte-test-00049 (0.000715 sec)
+   passed  50/63  erte-test-00050 (0.000893 sec)
+   passed  51/63  erte-test-00051 (0.000285 sec)
+   passed  52/63  erte-test-00052 (0.000250 sec)
+   passed  53/63  erte-test-00053 (0.000209 sec)
+   passed  54/63  erte-test-00054 (0.000248 sec)
+   passed  55/63  erte-test-00055 (0.000223 sec)
+   passed  56/63  erte-test-00056 (0.000254 sec)
+   passed  57/63  erte-test-00057 (0.000302 sec)
+   passed  58/63  erte-test-00058 (0.000226 sec)
+   passed  59/63  erte-test-00059 (0.000215 sec)
+   passed  60/63  erte-test-00060 (0.000209 sec)
+   passed  61/63  erte-test-00061 (0.000267 sec)
+   passed  62/63  erte-test-00062 (0.000204 sec)
+   passed  63/63  erte-test-00063 (0.000230 sec)
 
-Ran 63 tests, 63 results as expected, 0 unexpected (2026-04-03 03:05:44+0000, 0.015879 sec)
+Ran 63 tests, 63 results as expected, 0 unexpected (2025-02-28 20:46:02+0000, 0.032950 sec)
 
    create-stamp debian/debhelper-build-stamp
    dh_prep
@@ -753,12 +789,14 @@
 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/2894820/tmp/hooks/B01_cleanup starting
+I: user script /srv/workspace/pbuilder/2894820/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/164061 and its subdirectories
-I: Current time: Thu Apr  2 15:05:47 -12 2026
-I: pbuilder-time-stamp: 1775185547
+I: removing directory /srv/workspace/pbuilder/2894820 and its subdirectories
+I: Current time: Sat Mar  1 10:46:14 +14 2025
+I: pbuilder-time-stamp: 1740775574