Diff of the two buildlogs:

--
--- b1/build.log	2025-03-10 11:40:59.372062994 +0000
+++ b2/build.log	2025-03-10 11:44:51.733615752 +0000
@@ -1,6 +1,6 @@
 I: pbuilder: network access will be disabled during build
-I: Current time: Sun Mar  9 23:39:15 -12 2025
-I: pbuilder-time-stamp: 1741606755
+I: Current time: Mon Apr 13 08:03:58 +14 2026
+I: pbuilder-time-stamp: 1776017038
 I: Building the build Environment
 I: extracting base tarball [/var/cache/pbuilder/trixie-reproducible-base.tgz]
 I: copying local configuration
@@ -23,54 +23,86 @@
 dpkg-source: info: unpacking filtermail_1.06.00-1.debian.tar.xz
 I: Not using root during the build.
 I: Installing the build-deps
-I: user script /srv/workspace/pbuilder/27250/tmp/hooks/D02_print_environment starting
+I: user script /srv/workspace/pbuilder/6670/tmp/hooks/D01_modify_environment starting
+debug: Running on ionos16-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 12 18:04 /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/6670/tmp/hooks/D01_modify_environment finished
+I: user script /srv/workspace/pbuilder/6670/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='71483d2c5b8c4b12afd904a7a969e7b3'
-  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='27250'
-  PS1='# '
-  PS2='> '
+  INVOCATION_ID=611bf9b34a7c43398da1ad80dec876b4
+  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=6670
   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.pDetXzAG/pbuilderrc_RKI8 --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.pDetXzAG/b1 --logfile b1/build.log filtermail_1.06.00-1.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.pDetXzAG/pbuilderrc_cSkJ --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.pDetXzAG/b2 --logfile b2/build.log filtermail_1.06.00-1.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 Mar  4 11:20 /bin -> usr/bin
-I: user script /srv/workspace/pbuilder/27250/tmp/hooks/D02_print_environment finished
+  lrwxrwxrwx 1 root root 7 Mar  4  2025 /bin -> usr/bin
+I: user script /srv/workspace/pbuilder/6670/tmp/hooks/D02_print_environment finished
  -> Attempting to satisfy build-dependencies
  -> Creating pbuilder-satisfydepends-dummy package
 Package: pbuilder-satisfydepends-dummy
@@ -160,7 +192,7 @@
 Get: 42 http://deb.debian.org/debian trixie/main i386 icmake i386 13.01.00-1 [619 kB]
 Get: 43 http://deb.debian.org/debian trixie/main i386 libbobcat-dev i386 6.07.01-2 [1779 kB]
 Get: 44 http://deb.debian.org/debian trixie/main i386 yodl i386 4.03.03-1 [212 kB]
-Fetched 26.7 MB in 0s (77.2 MB/s)
+Fetched 26.7 MB in 2s (12.8 MB/s)
 Preconfiguring packages ...
 Selecting previously unselected package readline-common.
 (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.)
@@ -355,7 +387,11 @@
 Building tag database...
  -> Finished parsing the build-deps
 I: Building the package
-I: Running cd /build/reproducible-path/filtermail-1.06.00/ && 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  > ../filtermail_1.06.00-1_source.changes
+I: user script /srv/workspace/pbuilder/6670/tmp/hooks/A99_set_merged_usr starting
+Not re-configuring usrmerge for trixie
+I: user script /srv/workspace/pbuilder/6670/tmp/hooks/A99_set_merged_usr finished
+hostname: Name or service not known
+I: Running cd /build/reproducible-path/filtermail-1.06.00/ && 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  > ../filtermail_1.06.00-1_source.changes
 dpkg-buildpackage: info: source package filtermail
 dpkg-buildpackage: info: source version 1.06.00-1
 dpkg-buildpackage: info: source distribution unstable
@@ -396,163 +432,163 @@
 icmake -d -V go
 mkdir -p tmp/o
 icmake -m -q tmp/jobs 'g++ --std=c++26 -g -O2 -ffile-prefix-map=/build/reproducible-path/filtermail-1.06.00=. -fstack-protector-strong -Wformat -Werror=format-security --std=c++26  -Wall -D_FORTIFY_SOURCE=2 -c -o $2 $1'
-inspectcidr/inspectcidr1.cc
-inspector/findip.cc
-inspector/data.cc
-inspector/inspector1.cc
-inspector/range.cc
-inspector/ip17216.cc
-inspector/privateip6.cc
-inspector/run.cc
-inspector/skipthrureceived.cc
-inspector/receivedheaders.cc
-inspector/findwhois.cc
-inspector/findcidr.cc
-inspector/privateip4.cc
-inspectcidr/insert.cc
-inspectcidr/getmask.cc
 inspectcidr/binary.cc
 expire/entry.cc
-expire/write.cc
-expire/processcurrent.cc
-filter/startif.cc
-expire/expired.cc
 expire/check.cc
+filter/startif.cc
 filter/setheader.cc
-expire/processrules.cc
-expire/checkfiles.cc
-expire/rulefile.cc
-expire/expire1.cc
 filter/matchrule.cc
 filter/rulesfile.cc
-current/rulefile.cc
-current/log.cc
-current/matchedrule.cc
 filter/filter1.cc
-current/header.cc
-current/reset.cc
 filter/done.cc
+expire/processcurrent.cc
+expire/expired.cc
+current/reset.cc
+current/rulefile.cc
+current/matchedrule.cc
 filter/accept.cc
-log/opinsert1.cc
+current/log.cc
+current/header.cc
+inspector/data.cc
+expire/expire1.cc
 log/opinsert2.cc
+log/opinsert1.cc
+inspector/findwhois.cc
 log/log1.cc
 log/instance.cc
-log/data.cc
 log/initialize.cc
-options/preambleonly.cc
+log/data.cc
+inspector/run.cc
+inspector/skipthrureceived.cc
+expire/checkfiles.cc
+inspectcidr/getmask.cc
+inspectcidr/inspectcidr1.cc
+inspectcidr/insert.cc
+expire/rulefile.cc
+expire/processrules.cc
+expire/write.cc
 options/uselogfile.cc
-options/logfile.cc
+inspector/findip.cc
+options/usesyslog.cc
+inspector/findcidr.cc
+inspector/inspector1.cc
+options/preambleonly.cc
+options/setbase.cc
 options/options1.cc
 options/rulesfile.cc
-options/setbase.cc
 options/mailfiles.cc
-condition/matched.cc
-options/usesyslog.cc
-options/instance.cc
-options/inspect.cc
-options/expiration.cc
-condition/condition1.cc
-options/initialize.cc
-options/data.cc
+inspector/range.cc
+inspector/privateip4.cc
+rules/update.cc
 rules/swaprule.cc
-rules/rules1.cc
+options/inspect.cc
+options/logfile.cc
+options/instance.cc
 rules/reset.cc
-rules/update.cc
+rules/rules1.cc
 rules/matchrule.cc
-rule/update.cc
-rules/matched.cc
-rules/addrule.cc
+options/data.cc
+options/initialize.cc
+options/expiration.cc
+condition/matched.cc
+rule/writenr.cc
 options/configfile.cc
+condition/condition1.cc
+rules/addrule.cc
+rules/matched.cc
 rule/writedate.cc
-rule/writenr.cc
 rules/details.cc
-rule/setdate.cc
+rule/update.cc
 rule/setnow.cc
-rule/reset.cc
 rule/rule1.cc
-rule/matchmode.cc
+rule/setdate.cc
+rule/reset.cc
+rule/matched.cc
 rule/matchexpr.cc
+rule/matchmode.cc
 rule/data.cc
-rule/matched.cc
 expr/setinteractive.cc
 expr/update.cc
-expr/regex.cc
 expr/matched.cc
 expr/script.cc
-expr/match.cc
 expr/expr1.cc
-expr/data.cc
-expr/input.cc
-expr/getmatchobject.cc
-mail/mail1.cc
-mail/instance.cc
-mail/rmheader.cc
-stringnocase/vpattern.cc
-mail/insert.cc
+mail/data.cc
+mail/copyto.cc
 stringnocase/vmatch.cc
-stringcase/destructor.cc
+stringnocase/vpattern.cc
+expr/match.cc
 stringnocase/destructor.cc
-mail/initialize.cc
-mail/copyto.cc
+expr/input.cc
+expr/data.cc
 specstring/vpattern.cc
+stringcase/destructor.cc
+script/destructor.cc
 specstring/destructor.cc
-mail/data.cc
-mail/hdr.cc
-stringcase/vmatch.cc
 script/vpattern.cc
+stringcase/vmatch.cc
+expr/regex.cc
 script/vmatch.cc
-rulepattern/rulepattern1.cc
-rulepattern/destructor.cc
+mail/rmheader.cc
+specbase/destructor.cc
+mail/initialize.cc
+expr/getmatchobject.cc
+mail/insert.cc
 rulepattern/vmatch.cc
+rulepattern/rulepattern1.cc
 rulepattern/vpattern.cc
-script/destructor.cc
-specbase/destructor.cc
+mail/hdr.cc
+rulepattern/destructor.cc
+cidr/destructor.cc
+mail/instance.cc
 cidr/vmatch.cc
+cidr/data.cc
 cidr/mask.cc
 cidr/binary.cc
+mail/mail1.cc
 cidr/vpattern.cc
-cidr/destructor.cc
-cidr/data.cc
 uinput/uinput.cc
+uinput/toeof.cc
 uinput/reread2.cc
+uinput/reread1.cc
+uinput/get.cc
 uinput/next.cc
-uinput/toeof.cc
 uinput/lineoffset.cc
-uinput/reread1.cc
 uinput/close.cc
-uinput/get.cc
-parser/regex.cc
+inspector/receivedheaders.cc
 parser/startif.cc
-parser/parser1.cc
-parser/parse.cc
+inspector/privateip6.cc
+inspector/ip17216.cc
 parser/matchmode.cc
-parser/hdr.cc
-parser/expression.cc
-parser/endrule.cc
+parser/parse.cc
+parser/parser1.cc
+parser/data.cc
 parser/date.cc
+parser/endrule.cc
 parser/error.cc
-parser/data.cc
-parser/condterm.cc
+parser/hdr.cc
 parser/beginrules.cc
-parser/addrule.cc
-parser/action.cc
-scanner/setidx.cc
-scanner/toeof.cc
-scanner/toms.cc
-scanner/incnextoffset.cc
+parser/regex.cc
 scanner/scanner1.cc
+parser/expression.cc
+scanner/toms.cc
+parser/action.cc
+parser/addrule.cc
 scanner/rulesfile.cc
+scanner/toeof.cc
+scanner/setidx.cc
 scanner/regex2initial.cc
-scanner/pushedstream.cc
+parser/condterm.cc
 scanner/nloffset.cc
-scanner/error2initial.cc
-scanner/allowfileswitching.cc
 scanner/action.cc
-./handleexception.cc
+scanner/allowfileswitching.cc
+scanner/pushedstream.cc
+scanner/error2initial.cc
+scanner/incnextoffset.cc
 ./usage.cc
-scanner/lex.cc
 ./preamble.cc
 ./inspect.cc
+./handleexception.cc
+scanner/lex.cc
 ar cr ../libfiltermail.a *.o
 ranlib ../libfiltermail.a
 rm *.o
@@ -622,8 +658,8 @@
    dh_link
    dh_strip_nondeterminism
 	Using 1741105593 as canonical time
-	Normalizing debian/filtermail/usr/share/doc/filtermail/README.gz using File::StripNondeterminism::handlers::gzip
 	Normalizing debian/filtermail/usr/share/doc/filtermail/changelog.gz using File::StripNondeterminism::handlers::gzip
+	Normalizing debian/filtermail/usr/share/doc/filtermail/README.gz using File::StripNondeterminism::handlers::gzip
    dh_compress
 	cd debian/filtermail
 	chmod a-x usr/share/doc/filtermail/changelog usr/share/doc/filtermail/changelog.Debian usr/share/man/man1/filtermail.1
@@ -672,8 +708,8 @@
 	cd debian/.debhelper/filtermail/dbgsym-root >/dev/null && xargs -r0 md5sum | perl -pe 'if (s@^\\@@) { s/\\\\/\\/g; }' > DEBIAN/md5sums
 	chmod 0644 -- debian/.debhelper/filtermail/dbgsym-root/DEBIAN/md5sums
    dh_builddeb
-	dpkg-deb --root-owner-group --build debian/.debhelper/filtermail/dbgsym-root ..
 	dpkg-deb --root-owner-group --build debian/filtermail ..
+	dpkg-deb --root-owner-group --build debian/.debhelper/filtermail/dbgsym-root ..
 dpkg-deb: building package 'filtermail-dbgsym' in '../filtermail-dbgsym_1.06.00-1_i386.deb'.
 dpkg-deb: building package 'filtermail' in '../filtermail_1.06.00-1_i386.deb'.
  dpkg-genbuildinfo --build=binary -O../filtermail_1.06.00-1_i386.buildinfo
@@ -683,12 +719,14 @@
 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/6670/tmp/hooks/B01_cleanup starting
+I: user script /srv/workspace/pbuilder/6670/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/27250 and its subdirectories
-I: Current time: Sun Mar  9 23:40:58 -12 2025
-I: pbuilder-time-stamp: 1741606858
+I: removing directory /srv/workspace/pbuilder/6670 and its subdirectories
+I: Current time: Mon Apr 13 08:07:44 +14 2026
+I: pbuilder-time-stamp: 1776017264