Diff of the two buildlogs:

--
--- b1/build.log	2025-03-17 08:03:29.464063522 +0000
+++ b2/build.log	2025-03-17 08:27:19.219932067 +0000
@@ -1,6 +1,6 @@
 I: pbuilder: network access will be disabled during build
-I: Current time: Sun Mar 16 19:46:26 -12 2025
-I: pbuilder-time-stamp: 1742197586
+I: Current time: Mon Apr 20 04:28:52 +14 2026
+I: pbuilder-time-stamp: 1776608932
 I: Building the build Environment
 I: extracting base tarball [/var/cache/pbuilder/unstable-reproducible-base.tgz]
 I: copying local configuration
@@ -33,52 +33,84 @@
 dpkg-source: info: applying 0010-bumps-1.x-API-updates-for-fitting-results.patch
 I: Not using root during the build.
 I: Installing the build-deps
-I: user script /srv/workspace/pbuilder/3684023/tmp/hooks/D02_print_environment starting
+I: user script /srv/workspace/pbuilder/4191710/tmp/hooks/D01_modify_environment starting
+debug: Running on codethink03-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
+'/bin/sh' -> '/bin/bash'
+lrwxrwxrwx 1 root root 9 Apr 19 14:29 /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/4191710/tmp/hooks/D01_modify_environment finished
+I: user script /srv/workspace/pbuilder/4191710/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='arm64'
-  DEBIAN_FRONTEND='noninteractive'
+  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]="aarch64-unknown-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=arm64
+  DEBIAN_FRONTEND=noninteractive
   DEB_BUILD_OPTIONS='buildinfo=+all reproducible=+all parallel=12 '
-  DISTRIBUTION='unstable'
-  HOME='/root'
-  HOST_ARCH='arm64'
+  DIRSTACK=()
+  DISTRIBUTION=unstable
+  EUID=0
+  FUNCNAME=([0]="Echo" [1]="main")
+  GROUPS=()
+  HOME=/root
+  HOSTNAME=i-capture-the-hostname
+  HOSTTYPE=aarch64
+  HOST_ARCH=arm64
   IFS=' 	
   '
-  INVOCATION_ID='ac99af9383904a469b1f6da4fdab23a3'
-  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='3684023'
-  PS1='# '
-  PS2='> '
+  INVOCATION_ID=ab16658db608409ba2c5df825794faf5
+  LANG=C
+  LANGUAGE=nl_BE:nl
+  LC_ALL=C
+  MACHTYPE=aarch64-unknown-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=4191710
   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.lGRxJBsO/pbuilderrc_9dJQ --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.lGRxJBsO/b1 --logfile b1/build.log sasview_6.0.1-1.dsc'
-  SUDO_GID='109'
-  SUDO_UID='104'
-  SUDO_USER='jenkins'
-  TERM='unknown'
-  TZ='/usr/share/zoneinfo/Etc/GMT+12'
-  USER='root'
-  _='/usr/bin/systemd-run'
-  http_proxy='http://192.168.101.4:3128'
+  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.lGRxJBsO/pbuilderrc_VYJc --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.lGRxJBsO/b2 --logfile b2/build.log sasview_6.0.1-1.dsc'
+  SUDO_GID=109
+  SUDO_UID=104
+  SUDO_USER=jenkins
+  TERM=unknown
+  TZ=/usr/share/zoneinfo/Etc/GMT-14
+  UID=0
+  USER=root
+  _='I: set'
+  http_proxy=http://192.168.101.4:3128
 I: uname -a
-  Linux codethink04-arm64 6.1.0-32-cloud-arm64 #1 SMP Debian 6.1.129-1 (2025-03-06) aarch64 GNU/Linux
+  Linux i-capture-the-hostname 6.1.0-32-cloud-arm64 #1 SMP Debian 6.1.129-1 (2025-03-06) aarch64 GNU/Linux
 I: ls -l /bin
-  lrwxrwxrwx 1 root root 7 Mar  4 11:20 /bin -> usr/bin
-I: user script /srv/workspace/pbuilder/3684023/tmp/hooks/D02_print_environment finished
+  lrwxrwxrwx 1 root root 7 Mar  4  2025 /bin -> usr/bin
+I: user script /srv/workspace/pbuilder/4191710/tmp/hooks/D02_print_environment finished
  -> Attempting to satisfy build-dependencies
  -> Creating pbuilder-satisfydepends-dummy package
 Package: pbuilder-satisfydepends-dummy
@@ -707,7 +739,7 @@
 Get: 483 http://deb.debian.org/debian unstable/main arm64 xserver-common all 2:21.1.16-1 [2409 kB]
 Get: 484 http://deb.debian.org/debian unstable/main arm64 xserver-xephyr arm64 2:21.1.16-1 [3246 kB]
 Get: 485 http://deb.debian.org/debian unstable/main arm64 xvfb arm64 2:21.1.16-1 [3122 kB]
-Fetched 523 MB in 12s (44.4 MB/s)
+Fetched 523 MB in 3s (154 MB/s)
 Preconfiguring packages ...
 Selecting previously unselected package libtext-charwidth-perl: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 ... 19898 files and directories currently installed.)
@@ -2254,8 +2286,8 @@
 Setting up tzdata (2025a-2) ...
 
 Current default time zone: 'Etc/UTC'
-Local time is now:      Mon Mar 17 07:48:07 UTC 2025.
-Universal Time is now:  Mon Mar 17 07:48:07 UTC 2025.
+Local time is now:      Sun Apr 19 14:31:56 UTC 2026.
+Universal Time is now:  Sun Apr 19 14:31:56 UTC 2026.
 Run 'dpkg-reconfigure tzdata' if you wish to change it.
 
 Setting up libxcb-present0:arm64 (1.17.0-2+b1) ...
@@ -2715,7 +2747,11 @@
 Building tag database...
  -> Finished parsing the build-deps
 I: Building the package
-I: Running cd /build/reproducible-path/sasview-6.0.1/ && 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  > ../sasview_6.0.1-1_source.changes
+I: user script /srv/workspace/pbuilder/4191710/tmp/hooks/A99_set_merged_usr starting
+Not re-configuring usrmerge for unstable
+I: user script /srv/workspace/pbuilder/4191710/tmp/hooks/A99_set_merged_usr finished
+hostname: Name or service not known
+I: Running cd /build/reproducible-path/sasview-6.0.1/ && 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  > ../sasview_6.0.1-1_source.changes
 dpkg-buildpackage: info: source package sasview
 dpkg-buildpackage: info: source version 6.0.1-1
 dpkg-buildpackage: info: source distribution unstable
@@ -18151,7 +18187,7 @@
 t.pfb></usr/share/texlive/texmf-dist/fonts/type1/public/txfonts/tcxbtt.pfb></us
 r/share/texlive/texmf-dist/fonts/type1/public/txfonts/tcxtt.pfb></usr/share/tex
 live/texmf-dist/fonts/type1/urw/times/utmr8a.pfb>
-Output written on SasView.pdf (999 pages, 65282475 bytes).
+Output written on SasView.pdf (999 pages, 65282477 bytes).
 Transcript written on SasView.log.
 This is pdfTeX, Version 3.141592653-2.6-1.40.26 (TeX Live 2025/dev/Debian) (preloaded format=pdflatex)
  restricted \write18 enabled.
@@ -21216,7 +21252,7 @@
 t.pfb></usr/share/texlive/texmf-dist/fonts/type1/public/txfonts/tcxbtt.pfb></us
 r/share/texlive/texmf-dist/fonts/type1/public/txfonts/tcxtt.pfb></usr/share/tex
 live/texmf-dist/fonts/type1/urw/times/utmr8a.pfb>
-Output written on SasView.pdf (999 pages, 65424000 bytes).
+Output written on SasView.pdf (999 pages, 65423998 bytes).
 Transcript written on SasView.log.
 This is pdfTeX, Version 3.141592653-2.6-1.40.26 (TeX Live 2025/dev/Debian) (preloaded format=pdflatex)
  restricted \write18 enabled.
@@ -24281,7 +24317,7 @@
 t.pfb></usr/share/texlive/texmf-dist/fonts/type1/public/txfonts/tcxbtt.pfb></us
 r/share/texlive/texmf-dist/fonts/type1/public/txfonts/tcxtt.pfb></usr/share/tex
 live/texmf-dist/fonts/type1/urw/times/utmr8a.pfb>
-Output written on SasView.pdf (999 pages, 65424000 bytes).
+Output written on SasView.pdf (999 pages, 65423998 bytes).
 Transcript written on SasView.log.
 This is makeindex, version 2.17 [TeX Live 2025/dev] (kpathsea + Thai support).
 Scanning style file ./python.ist.......done (7 attributes redefined, 0 ignored).
@@ -67473,7 +67509,7 @@
 t.pfb></usr/share/texlive/texmf-dist/fonts/type1/public/txfonts/tcxbtt.pfb></us
 r/share/texlive/texmf-dist/fonts/type1/public/txfonts/tcxtt.pfb></usr/share/tex
 live/texmf-dist/fonts/type1/urw/times/utmr8a.pfb>
-Output written on SasView.pdf (1186 pages, 66052911 bytes).
+Output written on SasView.pdf (1186 pages, 66052889 bytes).
 Transcript written on SasView.log.
 This is pdfTeX, Version 3.141592653-2.6-1.40.26 (TeX Live 2025/dev/Debian) (preloaded format=pdflatex)
  restricted \write18 enabled.
@@ -110652,7 +110688,7 @@
 t.pfb></usr/share/texlive/texmf-dist/fonts/type1/public/txfonts/tcxbtt.pfb></us
 r/share/texlive/texmf-dist/fonts/type1/public/txfonts/tcxtt.pfb></usr/share/tex
 live/texmf-dist/fonts/type1/urw/times/utmr8a.pfb>
-Output written on SasView.pdf (1186 pages, 66053678 bytes).
+Output written on SasView.pdf (1186 pages, 66053533 bytes).
 Transcript written on SasView.log.
 === Build PDF Docs from ReST Files ===
 === Copy PDF to HTML Directory ===
@@ -110821,7 +110857,7 @@
     err_matrix = math.fabs(residuals) * cov
 
 -- Docs: https://docs.pytest.org/en/stable/how-to/capture-warnings.html
-================ 96 passed, 1 deselected, 313 warnings in 5.83s ================
+================ 96 passed, 1 deselected, 313 warnings in 3.72s ================
    create-stamp debian/debhelper-build-stamp
    dh_testroot -O--buildsystem=pybuild
    dh_prep -O--buildsystem=pybuild
@@ -111043,7 +111079,6 @@
 copying src/sas/qtgui/Perspectives/Inversion/media/__init__.py -> /build/reproducible-path/sasview-6.0.1/.pybuild/cpython3_3.13_sasview/build/sas/qtgui/Perspectives/Inversion/media
 copying src/sas/qtgui/Perspectives/Inversion/UI/DMaxExplorer.py -> /build/reproducible-path/sasview-6.0.1/.pybuild/cpython3_3.13_sasview/build/sas/qtgui/Perspectives/Inversion/UI
 copying src/sas/qtgui/Perspectives/Inversion/UI/TabbedInversionUI.py -> /build/reproducible-path/sasview-6.0.1/.pybuild/cpython3_3.13_sasview/build/sas/qtgui/Perspectives/Inversion/UI
-copying src/sas/qtgui/Perspectives/Invariant/media/report_template.html -> /build/reproducible-path/sasview-6.0.1/.pybuild/cpython3_3.13_sasview/build/sas/qtgui/Perspectives/Invariant/media
 copying src/sas/qtgui/Perspectives/Invariant/media/__init__.py -> /build/reproducible-path/sasview-6.0.1/.pybuild/cpython3_3.13_sasview/build/sas/qtgui/Perspectives/Invariant/media
 copying src/sas/qtgui/Perspectives/Invariant/UI/InvariantDetailsUI.py -> /build/reproducible-path/sasview-6.0.1/.pybuild/cpython3_3.13_sasview/build/sas/qtgui/Perspectives/Invariant/UI
 copying src/sas/qtgui/Perspectives/Invariant/UI/TabbedInvariantUI.py -> /build/reproducible-path/sasview-6.0.1/.pybuild/cpython3_3.13_sasview/build/sas/qtgui/Perspectives/Invariant/UI
@@ -111071,7 +111106,6 @@
 copying src/sas/qtgui/MainWindow/UI/TabbedFileLoadUI.py -> /build/reproducible-path/sasview-6.0.1/.pybuild/cpython3_3.13_sasview/build/sas/qtgui/MainWindow/UI
 copying src/sas/qtgui/MainWindow/UI/WelcomePanelUI.py -> /build/reproducible-path/sasview-6.0.1/.pybuild/cpython3_3.13_sasview/build/sas/qtgui/MainWindow/UI
 copying src/sas/qtgui/GL/visual_checks/__init__.py -> /build/reproducible-path/sasview-6.0.1/.pybuild/cpython3_3.13_sasview/build/sas/qtgui/GL/visual_checks
-copying src/sas/qtgui/Calculators/media/gen_sas_help.html -> /build/reproducible-path/sasview-6.0.1/.pybuild/cpython3_3.13_sasview/build/sas/qtgui/Calculators/media
 copying src/sas/qtgui/Calculators/media/__init__.py -> /build/reproducible-path/sasview-6.0.1/.pybuild/cpython3_3.13_sasview/build/sas/qtgui/Calculators/media
 copying src/sas/qtgui/Calculators/UI/DataOperationUtilityUI.py -> /build/reproducible-path/sasview-6.0.1/.pybuild/cpython3_3.13_sasview/build/sas/qtgui/Calculators/UI
 copying src/sas/qtgui/Calculators/UI/DensityPanel.py -> /build/reproducible-path/sasview-6.0.1/.pybuild/cpython3_3.13_sasview/build/sas/qtgui/Calculators/UI
@@ -114658,12 +114692,14 @@
 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/4191710/tmp/hooks/B01_cleanup starting
+I: user script /srv/workspace/pbuilder/4191710/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/3684023 and its subdirectories
-I: Current time: Sun Mar 16 20:03:27 -12 2025
-I: pbuilder-time-stamp: 1742198607
+I: removing directory /srv/workspace/pbuilder/4191710 and its subdirectories
+I: Current time: Mon Apr 20 04:50:16 +14 2026
+I: pbuilder-time-stamp: 1776610216