Diff of the two buildlogs:

--
--- b1/build.log	2024-12-04 07:21:48.340003221 +0000
+++ b2/build.log	2024-12-04 07:22:19.442594941 +0000
@@ -1,6 +1,6 @@
 I: pbuilder: network access will be disabled during build
-I: Current time: Tue Dec  3 19:20:55 -12 2024
-I: pbuilder-time-stamp: 1733296855
+I: Current time: Wed Jan  7 03:44:50 +14 2026
+I: pbuilder-time-stamp: 1767707090
 I: Building the build Environment
 I: extracting base tarball [/var/cache/pbuilder/trixie-reproducible-base.tgz]
 I: copying local configuration
@@ -23,52 +23,84 @@
 dpkg-source: info: unpacking hamradio-files_20241025.tar.xz
 I: using fakeroot in build.
 I: Installing the build-deps
-I: user script /srv/workspace/pbuilder/2294281/tmp/hooks/D02_print_environment starting
+I: user script /srv/workspace/pbuilder/1589695/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 Jan  6 13:45 /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/1589695/tmp/hooks/D01_modify_environment finished
+I: user script /srv/workspace/pbuilder/1589695/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]="32" [3]="1" [4]="release" [5]="x86_64-pc-linux-gnu")
+  BASH_VERSION='5.2.32(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='f9cd4a0094024090ade7786ef750b034'
-  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='2294281'
-  PS1='# '
-  PS2='> '
+  INVOCATION_ID=e61457ee99ca4d93a1bc6e28896dc378
+  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=1589695
   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.Ep5KprtF/pbuilderrc_lQnm --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.Ep5KprtF/b1 --logfile b1/build.log hamradio-files_20241025.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.Ep5KprtF/pbuilderrc_8y0y --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.Ep5KprtF/b2 --logfile b2/build.log hamradio-files_20241025.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 6.1.0-28-amd64 #1 SMP PREEMPT_DYNAMIC Debian 6.1.119-1 (2024-11-22) x86_64 GNU/Linux
+  Linux i-capture-the-hostname 6.11.5+bpo-amd64 #1 SMP PREEMPT_DYNAMIC Debian 6.11.5-1~bpo12+1 (2024-11-11) 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/2294281/tmp/hooks/D02_print_environment finished
+  lrwxrwxrwx 1 root root 7 Nov 22  2024 /bin -> usr/bin
+I: user script /srv/workspace/pbuilder/1589695/tmp/hooks/D02_print_environment finished
  -> Attempting to satisfy build-dependencies
  -> Creating pbuilder-satisfydepends-dummy package
 Package: pbuilder-satisfydepends-dummy
@@ -133,7 +165,7 @@
 Get: 27 http://deb.debian.org/debian trixie/main amd64 intltool-debian all 0.35.0+20060710.6 [22.9 kB]
 Get: 28 http://deb.debian.org/debian trixie/main amd64 po-debconf all 1.0.21+nmu1 [248 kB]
 Get: 29 http://deb.debian.org/debian trixie/main amd64 debhelper all 13.20 [915 kB]
-Fetched 19.8 MB in 0s (53.7 MB/s)
+Fetched 19.8 MB in 0s (111 MB/s)
 debconf: delaying package configuration, since apt-utils is not installed
 Selecting previously unselected package sensible-utils.
 (Reading database ... 
(Reading database ... 5%
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(Reading database ... 95%
(Reading database ... 100%
(Reading database ... 19968 files and directories currently installed.)
@@ -269,7 +301,11 @@
 fakeroot is already the newest version (1.36-1).
 0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
 I: Building the package
-I: Running cd /build/reproducible-path/hamradio-files-20241025/ && 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_20241025_source.changes
+I: user script /srv/workspace/pbuilder/1589695/tmp/hooks/A99_set_merged_usr starting
+Not re-configuring usrmerge for trixie
+I: user script /srv/workspace/pbuilder/1589695/tmp/hooks/A99_set_merged_usr finished
+hostname: Name or service not known
+I: Running cd /build/reproducible-path/hamradio-files-20241025/ && 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_20241025_source.changes
 dpkg-buildpackage: info: source package hamradio-files
 dpkg-buildpackage: info: source version 20241025
 dpkg-buildpackage: info: source distribution unstable
@@ -288,40 +324,40 @@
 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=Greenland
-+ [ Greenland ]
++ '[' Greenland ']'
 + : %%%%% Checking cty.dat %%%%%
-+ 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
-+ + sedegrep -ne -o ^[A-Z][^:]+
- 1,/\bVERSION\b/p bigcty/cty.dat
-+ tail -1
-+ [ Greenland = Greenland ]
+++ 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
++ '[' Greenland = Greenland ']'
 + : %%%%% 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
-+ [ Greenland = Greenland ]
-+ : 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
++ '[' Greenland = Greenland ']'
++ : '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=75066
-+ [ 75066 -le 120000 ]
++ '[' 75066 -le 120000 ']'
 make[1]: Leaving directory '/build/reproducible-path/hamradio-files-20241025'
    create-stamp debian/debhelper-build-stamp
  fakeroot debian/rules binary
@@ -362,12 +398,14 @@
 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/1589695/tmp/hooks/B01_cleanup starting
+I: user script /srv/workspace/pbuilder/1589695/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/2294281 and its subdirectories
-I: Current time: Tue Dec  3 19:21:47 -12 2024
-I: pbuilder-time-stamp: 1733296907
+I: removing directory /srv/workspace/pbuilder/1589695 and its subdirectories
+I: Current time: Wed Jan  7 03:45:18 +14 2026
+I: pbuilder-time-stamp: 1767707118