Diff of the two buildlogs:

--
--- b1/build.log	2025-03-06 16:05:16.565834756 +0000
+++ b2/build.log	2025-03-06 16:05:44.820565354 +0000
@@ -1,6 +1,6 @@
 I: pbuilder: network access will be disabled during build
-I: Current time: Thu Mar  6 04:03:20 -12 2025
-I: pbuilder-time-stamp: 1741277000
+I: Current time: Thu Apr  9 12:28:18 +14 2026
+I: pbuilder-time-stamp: 1775687298
 I: Building the build Environment
 I: extracting base tarball [/var/cache/pbuilder/trixie-reproducible-base.tgz]
 I: copying local configuration
@@ -21,54 +21,86 @@
 dpkg-source: info: unpacking hamradio-files_20250228.tar.xz
 I: using fakeroot in build.
 I: Installing the build-deps
-I: user script /srv/workspace/pbuilder/13921/tmp/hooks/D02_print_environment starting
+I: user script /srv/workspace/pbuilder/74988/tmp/hooks/D01_modify_environment starting
+debug: Running on ionos6-i386.
+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  8 22:28 /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/74988/tmp/hooks/D01_modify_environment finished
+I: user script /srv/workspace/pbuilder/74988/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='i386'
-  DEBIAN_FRONTEND='noninteractive'
-  DEB_BUILD_OPTIONS='buildinfo=+all reproducible=+all parallel=11 '
-  DISTRIBUTION='trixie'
-  HOME='/root'
-  HOST_ARCH='i386'
+  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]="i686-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=i386
+  DEBIAN_FRONTEND=noninteractive
+  DEB_BUILD_OPTIONS='buildinfo=+all reproducible=+all parallel=21 '
+  DIRSTACK=()
+  DISTRIBUTION=trixie
+  EUID=0
+  FUNCNAME=([0]="Echo" [1]="main")
+  GROUPS=()
+  HOME=/root
+  HOSTNAME=i-capture-the-hostname
+  HOSTTYPE=i686
+  HOST_ARCH=i386
   IFS=' 	
   '
-  INVOCATION_ID='0e31a0d3bab84e5a89ce92c566d9e9b6'
-  LANG='C'
-  LANGUAGE='en_US:en'
-  LC_ALL='C'
-  LD_LIBRARY_PATH='/usr/lib/libeatmydata'
-  LD_PRELOAD='libeatmydata.so'
-  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='13921'
-  PS1='# '
-  PS2='> '
+  INVOCATION_ID=22d100f29efd427d9b69ae0a4eadde87
+  LANG=C
+  LANGUAGE=de_CH:de
+  LC_ALL=C
+  LD_LIBRARY_PATH=/usr/lib/libeatmydata
+  LD_PRELOAD=libeatmydata.so
+  MACHTYPE=i686-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=74988
   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.tAztKx70/pbuilderrc_YxVA --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.tAztKx70/b1 --logfile b1/build.log hamradio-files_20250228.dsc'
-  SUDO_GID='112'
-  SUDO_UID='107'
-  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.tAztKx70/pbuilderrc_Hfm5 --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.tAztKx70/b2 --logfile b2/build.log hamradio-files_20250228.dsc'
+  SUDO_GID=112
+  SUDO_UID=107
+  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 ionos2-i386 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 6.1.0-31-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 14:40 /bin -> usr/bin
-I: user script /srv/workspace/pbuilder/13921/tmp/hooks/D02_print_environment finished
+  lrwxrwxrwx 1 root root 7 Nov 22  2024 /bin -> usr/bin
+I: user script /srv/workspace/pbuilder/74988/tmp/hooks/D02_print_environment finished
  -> Attempting to satisfy build-dependencies
  -> Creating pbuilder-satisfydepends-dummy package
 Package: pbuilder-satisfydepends-dummy
@@ -134,7 +166,7 @@
 Get: 28 http://deb.debian.org/debian trixie/main i386 intltool-debian all 0.35.0+20060710.6 [22.9 kB]
 Get: 29 http://deb.debian.org/debian trixie/main i386 po-debconf all 1.0.21+nmu1 [248 kB]
 Get: 30 http://deb.debian.org/debian trixie/main i386 debhelper all 13.24.1 [920 kB]
-Fetched 20.8 MB in 1s (33.2 MB/s)
+Fetched 20.8 MB in 1s (16.5 MB/s)
 Preconfiguring packages ...
 Selecting previously unselected package sensible-utils.
 (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 ... 19787 files and directories currently installed.)
@@ -274,7 +306,11 @@
 fakeroot is already the newest version (1.37-1).
 0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
 I: Building the package
-I: Running cd /build/reproducible-path/hamradio-files-20250228/ && 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  > ../hamradio-files_20250228_source.changes
+I: user script /srv/workspace/pbuilder/74988/tmp/hooks/A99_set_merged_usr starting
+Not re-configuring usrmerge for trixie
+I: user script /srv/workspace/pbuilder/74988/tmp/hooks/A99_set_merged_usr finished
+hostname: Name or service not known
+I: Running cd /build/reproducible-path/hamradio-files-20250228/ && 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  > ../hamradio-files_20250228_source.changes
 dpkg-buildpackage: info: source package hamradio-files
 dpkg-buildpackage: info: source version 20250228
 dpkg-buildpackage: info: source distribution unstable
@@ -293,40 +329,40 @@
 debian/tests/cty bigcty
 + DIR=bigcty
 + : %%%%% Retrieving VERSION entity from history.txt %%%%%
-+ sed -ne s/.*Version entity is \(.*\),.*/\1/p bigcty/HISTORY.TXT
+++ sed -ne 's/.*Version entity is \(.*\),.*/\1/p' bigcty/HISTORY.TXT
 + VERSION=Wales
-+ [ Wales ]
++ '[' Wales ']'
 + : %%%%% Checking cty.dat %%%%%
-+ cty_dat_lookup DF
-+ pfx=DF
-+ sed -ne 1,/\bDF\b/p bigcty/cty.dat
-+ egrep -o ^[A-Z][^:]+
-+ tail -1
-+ [ Fed. Rep. of Germany = Fed. Rep. of Germany ]
-+ cty_dat_lookup VERSION
-+ pfx=VERSION
-+ sed -ne 1,/\bVERSION\b/p bigcty/cty.dat
-+ egrep -o ^[A-Z][^:]+
-+ tail -1
-+ [ Wales = Wales ]
+++ cty_dat_lookup DF
+++ pfx=DF
+++ sed -ne '1,/\bDF\b/p' bigcty/cty.dat
+++ tail -1
+++ egrep -o '^[A-Z][^:]+'
++ '[' 'Fed. Rep. of Germany' = 'Fed. Rep. of Germany' ']'
+++ cty_dat_lookup VERSION
+++ pfx=VERSION
+++ sed -ne '1,/\bVERSION\b/p' bigcty/cty.dat
+++ egrep -o '^[A-Z][^:]+'
+++ tail -1
++ '[' Wales = Wales ']'
 + : %%%%% Checking cty.csv %%%%%
-+ cty_csv_lookup DF
-+ pfx=DF
-+ egrep \bDF\b bigcty/cty.csv
-+ cut -d , -f 2
-+ [ Fed. Rep. of Germany = Fed. Rep. of Germany ]
-+ cty_csv_lookup VERSION
-+ pfx=VERSION
-+ egrep \bVERSION\b bigcty/cty.csv
-+ cut -d , -f 2
-+ [ Wales = Wales ]
-+ : Check cty.csv line length
-+ : If this becomes too large, xdx and xlog need to be patched
-+ : (See #1025276 and #1025290)
-+ wc --max-line-length bigcty/cty.csv
-+ cut -d   -f 1
+++ cty_csv_lookup DF
+++ pfx=DF
+++ egrep '\bDF\b' bigcty/cty.csv
+++ cut -d , -f 2
++ '[' 'Fed. Rep. of Germany' = 'Fed. Rep. of Germany' ']'
+++ cty_csv_lookup VERSION
+++ pfx=VERSION
+++ egrep '\bVERSION\b' bigcty/cty.csv
+++ cut -d , -f 2
++ '[' Wales = Wales ']'
++ : 'Check cty.csv line length'
++ : 'If this becomes too large, xdx and xlog need to be patched'
++ : '(See #1025276 and #1025290)'
+++ wc --max-line-length bigcty/cty.csv
+++ cut -d ' ' -f 1
 + line_length=76208
-+ [ 76208 -le 120000 ]
++ '[' 76208 -le 120000 ']'
 make[1]: Leaving directory '/build/reproducible-path/hamradio-files-20250228'
    create-stamp debian/debhelper-build-stamp
    dh_prep
@@ -364,12 +400,14 @@
 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/74988/tmp/hooks/B01_cleanup starting
+I: user script /srv/workspace/pbuilder/74988/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/13921 and its subdirectories
-I: Current time: Thu Mar  6 04:05:14 -12 2025
-I: pbuilder-time-stamp: 1741277114
+I: removing directory /srv/workspace/pbuilder/74988 and its subdirectories
+I: Current time: Thu Apr  9 12:28:43 +14 2026
+I: pbuilder-time-stamp: 1775687323