Diff of the two buildlogs:

--
--- b1/build.log	2023-04-11 12:46:38.526352862 +0000
+++ b2/build.log	2023-04-11 12:49:25.536811978 +0000
@@ -1,6 +1,6 @@
 I: pbuilder: network access will be disabled during build
-I: Current time: Mon May 13 07:07:30 -12 2024
-I: pbuilder-time-stamp: 1715627250
+I: Current time: Wed Apr 12 02:46:42 +14 2023
+I: pbuilder-time-stamp: 1681217202
 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 [./octave-tsa_4.6.3.orig.tar.xz]
 I: copying [./octave-tsa_4.6.3-3.debian.tar.xz]
 I: Extracting source
-gpgv: Signature made Mon Dec  5 05:22:32 2022 -12
+gpgv: Signature made Tue Dec  6 07:22:32 2022 +14
 gpgv:                using RSA key 3F464391498FE874BDB5D98F2124AA1983785C90
 gpgv:                issuer "rafael@debian.org"
 gpgv: Can't check signature: No public key
@@ -26,11 +26,20 @@
 dpkg-source: info: unpacking octave-tsa_4.6.3-3.debian.tar.xz
 I: Not using root during the build.
 I: Installing the build-deps
-I: user script /srv/workspace/pbuilder/22868/tmp/hooks/D02_print_environment starting
+I: user script /srv/workspace/pbuilder/25752/tmp/hooks/D01_modify_environment starting
+debug: Running on codethink10-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/25752/tmp/hooks/D01_modify_environment finished
+I: user script /srv/workspace/pbuilder/25752/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'
@@ -40,38 +49,38 @@
   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='22868'
+  PPID='25752'
   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.wqq89k1Z/pbuilderrc_6Zcd --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.wqq89k1Z/b1 --logfile b1/build.log octave-tsa_4.6.3-3.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.wqq89k1Z/pbuilderrc_emIB --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.wqq89k1Z/b2 --logfile b2/build.log --extrapackages usrmerge octave-tsa_4.6.3-3.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 codethink13-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 13 04:48 /bin -> usr/bin
-I: user script /srv/workspace/pbuilder/22868/tmp/hooks/D02_print_environment finished
+  lrwxrwxrwx 1 root root 7 Apr 12 00:26 /bin -> usr/bin
+I: user script /srv/workspace/pbuilder/25752/tmp/hooks/D02_print_environment finished
  -> Attempting to satisfy build-dependencies
  -> Creating pbuilder-satisfydepends-dummy package
 Package: pbuilder-satisfydepends-dummy
@@ -653,7 +662,7 @@
 Get: 534 http://deb.debian.org/debian bookworm/main arm64 xauth arm64 1:1.1.2-1 [35.5 kB]
 Get: 535 http://deb.debian.org/debian bookworm/main arm64 xserver-common all 2:21.1.7-2 [2381 kB]
 Get: 536 http://deb.debian.org/debian bookworm/main arm64 xvfb arm64 2:21.1.7-2 [3082 kB]
-Fetched 189 MB in 9s (20.9 MB/s)
+Fetched 189 MB in 8s (24.8 MB/s)
 debconf: delaying package configuration, since apt-utils is not installed
 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 ... 19616 files and directories currently installed.)
@@ -2848,8 +2857,17 @@
 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/octave-tsa-4.6.3/ && 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  > ../octave-tsa_4.6.3-3_source.changes
+I: user script /srv/workspace/pbuilder/25752/tmp/hooks/A99_set_merged_usr starting
+Re-configuring usrmerge...
+I: user script /srv/workspace/pbuilder/25752/tmp/hooks/A99_set_merged_usr finished
+hostname: Temporary failure in name resolution
+I: Running cd /build/octave-tsa-4.6.3/ && 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  > ../octave-tsa_4.6.3-3_source.changes
 dpkg-buildpackage: info: source package octave-tsa
 dpkg-buildpackage: info: source version 4.6.3-3
 dpkg-buildpackage: info: source distribution unstable
@@ -2901,147 +2919,147 @@
     load_packages_and_dependencies at line 56 column 5
     load_packages at line 53 column 3
     pkg at line 632 column 7
-    /tmp/tmp.Ku33tPJu1P at line 9 column 9
+    /tmp/tmp.GxAvwFi7Bs at line 9 column 9
 
 warning: function /usr/share/octave/packages/nan-3.7.0/var.m shadows a core library function
 warning: called from
     load_packages_and_dependencies at line 56 column 5
     load_packages at line 53 column 3
     pkg at line 632 column 7
-    /tmp/tmp.Ku33tPJu1P at line 9 column 9
+    /tmp/tmp.GxAvwFi7Bs at line 9 column 9
 
 warning: function /usr/share/octave/packages/nan-3.7.0/sumsq.m shadows a built-in function
 warning: called from
     load_packages_and_dependencies at line 56 column 5
     load_packages at line 53 column 3
     pkg at line 632 column 7
-    /tmp/tmp.Ku33tPJu1P at line 9 column 9
+    /tmp/tmp.GxAvwFi7Bs at line 9 column 9
 
 warning: function /usr/share/octave/packages/nan-3.7.0/std.m shadows a core library function
 warning: called from
     load_packages_and_dependencies at line 56 column 5
     load_packages at line 53 column 3
     pkg at line 632 column 7
-    /tmp/tmp.Ku33tPJu1P at line 9 column 9
+    /tmp/tmp.GxAvwFi7Bs at line 9 column 9
 
 warning: function /usr/share/octave/packages/nan-3.7.0/spearman.m shadows a core library function
 warning: called from
     load_packages_and_dependencies at line 56 column 5
     load_packages at line 53 column 3
     pkg at line 632 column 7
-    /tmp/tmp.Ku33tPJu1P at line 9 column 9
+    /tmp/tmp.GxAvwFi7Bs at line 9 column 9
 
 warning: function /usr/share/octave/packages/nan-3.7.0/skewness.m shadows a core library function
 warning: called from
     load_packages_and_dependencies at line 56 column 5
     load_packages at line 53 column 3
     pkg at line 632 column 7
-    /tmp/tmp.Ku33tPJu1P at line 9 column 9
+    /tmp/tmp.GxAvwFi7Bs at line 9 column 9
 
 warning: function /usr/share/octave/packages/nan-3.7.0/ranks.m shadows a core library function
 warning: called from
     load_packages_and_dependencies at line 56 column 5
     load_packages at line 53 column 3
     pkg at line 632 column 7
-    /tmp/tmp.Ku33tPJu1P at line 9 column 9
+    /tmp/tmp.GxAvwFi7Bs at line 9 column 9
 
 warning: function /usr/share/octave/packages/nan-3.7.0/range.m shadows a core library function
 warning: called from
     load_packages_and_dependencies at line 56 column 5
     load_packages at line 53 column 3
     pkg at line 632 column 7
-    /tmp/tmp.Ku33tPJu1P at line 9 column 9
+    /tmp/tmp.GxAvwFi7Bs at line 9 column 9
 
 warning: function /usr/share/octave/packages/nan-3.7.0/quantile.m shadows a core library function
 warning: called from
     load_packages_and_dependencies at line 56 column 5
     load_packages at line 53 column 3
     pkg at line 632 column 7
-    /tmp/tmp.Ku33tPJu1P at line 9 column 9
+    /tmp/tmp.GxAvwFi7Bs at line 9 column 9
 
 warning: function /usr/share/octave/packages/nan-3.7.0/prctile.m shadows a core library function
 warning: called from
     load_packages_and_dependencies at line 56 column 5
     load_packages at line 53 column 3
     pkg at line 632 column 7
-    /tmp/tmp.Ku33tPJu1P at line 9 column 9
+    /tmp/tmp.GxAvwFi7Bs at line 9 column 9
 
 warning: function /usr/share/octave/packages/nan-3.7.0/moment.m shadows a core library function
 warning: called from
     load_packages_and_dependencies at line 56 column 5
     load_packages at line 53 column 3
     pkg at line 632 column 7
-    /tmp/tmp.Ku33tPJu1P at line 9 column 9
+    /tmp/tmp.GxAvwFi7Bs at line 9 column 9
 
 warning: function /usr/share/octave/packages/nan-3.7.0/median.m shadows a core library function
 warning: called from
     load_packages_and_dependencies at line 56 column 5
     load_packages at line 53 column 3
     pkg at line 632 column 7
-    /tmp/tmp.Ku33tPJu1P at line 9 column 9
+    /tmp/tmp.GxAvwFi7Bs at line 9 column 9
 
 warning: function /usr/share/octave/packages/nan-3.7.0/meansq.m shadows a core library function
 warning: called from
     load_packages_and_dependencies at line 56 column 5
     load_packages at line 53 column 3
     pkg at line 632 column 7
-    /tmp/tmp.Ku33tPJu1P at line 9 column 9
+    /tmp/tmp.GxAvwFi7Bs at line 9 column 9
 
 warning: function /usr/share/octave/packages/nan-3.7.0/mean.m shadows a core library function
 warning: called from
     load_packages_and_dependencies at line 56 column 5
     load_packages at line 53 column 3
     pkg at line 632 column 7
-    /tmp/tmp.Ku33tPJu1P at line 9 column 9
+    /tmp/tmp.GxAvwFi7Bs at line 9 column 9
 
 warning: function /usr/share/octave/packages/nan-3.7.0/mad.m shadows a core library function
 warning: called from
     load_packages_and_dependencies at line 56 column 5
     load_packages at line 53 column 3
     pkg at line 632 column 7
-    /tmp/tmp.Ku33tPJu1P at line 9 column 9
+    /tmp/tmp.GxAvwFi7Bs at line 9 column 9
 
 warning: function /usr/share/octave/packages/nan-3.7.0/kurtosis.m shadows a core library function
 warning: called from
     load_packages_and_dependencies at line 56 column 5
     load_packages at line 53 column 3
     pkg at line 632 column 7
-    /tmp/tmp.Ku33tPJu1P at line 9 column 9
+    /tmp/tmp.GxAvwFi7Bs at line 9 column 9
 
 warning: function /usr/share/octave/packages/nan-3.7.0/iqr.m shadows a core library function
 warning: called from
     load_packages_and_dependencies at line 56 column 5
     load_packages at line 53 column 3
     pkg at line 632 column 7
-    /tmp/tmp.Ku33tPJu1P at line 9 column 9
+    /tmp/tmp.GxAvwFi7Bs at line 9 column 9
 
 warning: function /usr/share/octave/packages/nan-3.7.0/detrend.m shadows a core library function
 warning: called from
     load_packages_and_dependencies at line 56 column 5
     load_packages at line 53 column 3
     pkg at line 632 column 7
-    /tmp/tmp.Ku33tPJu1P at line 9 column 9
+    /tmp/tmp.GxAvwFi7Bs at line 9 column 9
 
 warning: function /usr/share/octave/packages/nan-3.7.0/cov.m shadows a core library function
 warning: called from
     load_packages_and_dependencies at line 56 column 5
     load_packages at line 53 column 3
     pkg at line 632 column 7
-    /tmp/tmp.Ku33tPJu1P at line 9 column 9
+    /tmp/tmp.GxAvwFi7Bs at line 9 column 9
 
 warning: function /usr/share/octave/packages/nan-3.7.0/corrcoef.m shadows a core library function
 warning: called from
     load_packages_and_dependencies at line 56 column 5
     load_packages at line 53 column 3
     pkg at line 632 column 7
-    /tmp/tmp.Ku33tPJu1P at line 9 column 9
+    /tmp/tmp.GxAvwFi7Bs at line 9 column 9
 
 warning: function /usr/share/octave/packages/nan-3.7.0/center.m shadows a core library function
 warning: called from
     load_packages_and_dependencies at line 56 column 5
     load_packages at line 53 column 3
     pkg at line 632 column 7
-    /tmp/tmp.Ku33tPJu1P at line 9 column 9
+    /tmp/tmp.GxAvwFi7Bs at line 9 column 9
 
 Checking C++ files ...
 Run tests in debian/check.m
@@ -3059,7 +3077,7 @@
 warning: called from
     tsademo at line 23 column 5
     check at line 23 column 1
-    /tmp/tmp.Ku33tPJu1P at line 26 column 5
+    /tmp/tmp.GxAvwFi7Bs at line 26 column 5
 
 Warning INVEST1: DIFF-based optimization not possible
 Summary: 1 tests, 0 passed, 1 known failures, 0 skipped
@@ -3089,12 +3107,14 @@
 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/25752/tmp/hooks/B01_cleanup starting
+I: user script /srv/workspace/pbuilder/25752/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/22868 and its subdirectories
-I: Current time: Mon May 13 07:09:37 -12 2024
-I: pbuilder-time-stamp: 1715627377
+I: removing directory /srv/workspace/pbuilder/25752 and its subdirectories
+I: Current time: Wed Apr 12 02:49:24 +14 2023
+I: pbuilder-time-stamp: 1681217364