Diff of the two buildlogs:

--
--- b1/build.log	2025-03-05 00:19:02.769306366 +0000
+++ b2/build.log	2025-03-05 00:22:00.129357557 +0000
@@ -1,6 +1,6 @@
 I: pbuilder: network access will be disabled during build
-I: Current time: Mon Apr  6 18:38:44 -12 2026
-I: pbuilder-time-stamp: 1775543924
+I: Current time: Wed Mar  5 14:19:06 +14 2025
+I: pbuilder-time-stamp: 1741133946
 I: Building the build Environment
 I: extracting base tarball [/var/cache/pbuilder/unstable-reproducible-base.tgz]
 I: copying local configuration
@@ -22,52 +22,84 @@
 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/2599309/tmp/hooks/D02_print_environment starting
+I: user script /srv/workspace/pbuilder/4187412/tmp/hooks/D01_modify_environment starting
+debug: Running on ionos11-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 Mar  5 00:19 /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/4187412/tmp/hooks/D01_modify_environment finished
+I: user script /srv/workspace/pbuilder/4187412/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=42 '
-  DISTRIBUTION='unstable'
-  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]="37" [3]="1" [4]="release" [5]="x86_64-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=amd64
+  DEBIAN_FRONTEND=noninteractive
+  DEB_BUILD_OPTIONS='buildinfo=+all reproducible=+all parallel=20 '
+  DIRSTACK=()
+  DISTRIBUTION=unstable
+  EUID=0
+  FUNCNAME=([0]="Echo" [1]="main")
+  GROUPS=()
+  HOME=/root
+  HOSTNAME=i-capture-the-hostname
+  HOSTTYPE=x86_64
+  HOST_ARCH=amd64
   IFS=' 	
   '
-  INVOCATION_ID='0f04dc41417841e7bc0b3ee31ee483bd'
-  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='2599309'
-  PS1='# '
-  PS2='> '
+  INVOCATION_ID=3e1a9b8763204c079e98609322e15fda
+  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=4187412
   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.P9Dug3cB/pbuilderrc_W6MQ --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.P9Dug3cB/b1 --logfile b1/build.log filtermail_1.06.00-1.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://213.165.73.152:3128'
+  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.P9Dug3cB/pbuilderrc_bgnZ --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.P9Dug3cB/b2 --logfile b2/build.log filtermail_1.06.00-1.dsc'
+  SUDO_GID=111
+  SUDO_UID=106
+  SUDO_USER=jenkins
+  TERM=unknown
+  TZ=/usr/share/zoneinfo/Etc/GMT-14
+  UID=0
+  USER=root
+  _='I: set'
+  http_proxy=http://46.16.76.132:3128
 I: uname -a
-  Linux ionos5-amd64 6.12.12+bpo-amd64 #1 SMP PREEMPT_DYNAMIC Debian 6.12.12-1~bpo12+1 (2025-02-23) 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  2024 /bin -> usr/bin
-I: user script /srv/workspace/pbuilder/2599309/tmp/hooks/D02_print_environment finished
+  lrwxrwxrwx 1 root root 7 Nov 22 14:40 /bin -> usr/bin
+I: user script /srv/workspace/pbuilder/4187412/tmp/hooks/D02_print_environment finished
  -> Attempting to satisfy build-dependencies
  -> Creating pbuilder-satisfydepends-dummy package
 Package: pbuilder-satisfydepends-dummy
@@ -157,7 +189,7 @@
 Get: 42 http://deb.debian.org/debian unstable/main amd64 icmake amd64 13.01.00-1 [577 kB]
 Get: 43 http://deb.debian.org/debian unstable/main amd64 libbobcat-dev amd64 6.07.01-2 [1747 kB]
 Get: 44 http://deb.debian.org/debian unstable/main amd64 yodl amd64 4.03.03-1 [204 kB]
-Fetched 26.3 MB in 9s (2928 kB/s)
+Fetched 26.3 MB in 1s (24.2 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 ... 19783 files and directories currently installed.)
@@ -352,7 +384,11 @@
 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/4187412/tmp/hooks/A99_set_merged_usr starting
+Not re-configuring usrmerge for unstable
+I: user script /srv/workspace/pbuilder/4187412/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
@@ -389,166 +425,166 @@
 gcc -E VERSION.h | grep -v '#' | sed 's/\"//g' > release.yo
 icmbuild program
 icmake -S -a spch -i .ih -u xerr/xerr.ih tmp/spch.gch
-tmp/spch.gch: 117.8 MB
+tmp/spch.gch: 117.9 MB
 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 -fstack-clash-protection -Wformat -Werror=format-security -fcf-protection --std=c++26  -Wall -D_FORTIFY_SOURCE=2 -c -o $2 $1'
 inspectcidr/insert.cc
-current/log.cc
-current/rulefile.cc
 inspectcidr/inspectcidr1.cc
-current/reset.cc
-log/opinsert1.cc
-log/log1.cc
-inspector/run.cc
 inspectcidr/binary.cc
-current/header.cc
-expire/write.cc
+inspectcidr/getmask.cc
 expire/processrules.cc
-inspector/findip.cc
-log/instance.cc
-filter/matchrule.cc
-filter/done.cc
-log/initialize.cc
-inspector/findcidr.cc
+inspector/inspector1.cc
 inspector/data.cc
-inspector/skipthrureceived.cc
-inspector/receivedheaders.cc
-inspector/range.cc
-expire/check.cc
-expire/expire1.cc
-expire/entry.cc
-inspectcidr/getmask.cc
-expire/expired.cc
+inspector/findcidr.cc
 expire/processcurrent.cc
-log/opinsert2.cc
-current/matchedrule.cc
+inspector/findip.cc
 inspector/ip17216.cc
-inspector/inspector1.cc
-inspector/findwhois.cc
-filter/filter1.cc
-filter/rulesfile.cc
-filter/setheader.cc
-filter/startif.cc
 expire/rulefile.cc
+expire/write.cc
 inspector/privateip6.cc
+inspector/run.cc
+inspector/range.cc
+inspector/receivedheaders.cc
+inspector/skipthrureceived.cc
+inspector/findwhois.cc
 inspector/privateip4.cc
+expire/expired.cc
+expire/expire1.cc
+current/matchedrule.cc
+current/rulefile.cc
+expire/entry.cc
+filter/setheader.cc
+current/reset.cc
+filter/startif.cc
+filter/filter1.cc
+current/header.cc
+expire/check.cc
+current/log.cc
+log/log1.cc
+expire/checkfiles.cc
 filter/accept.cc
+filter/done.cc
+log/opinsert2.cc
+filter/matchrule.cc
+log/instance.cc
+log/opinsert1.cc
 condition/matched.cc
+filter/rulesfile.cc
 log/data.cc
-rule/writenr.cc
+log/initialize.cc
 condition/condition1.cc
-rule/writedate.cc
-rule/rule1.cc
-rule/reset.cc
-rules/matchrule.cc
-rules/update.cc
-rules/swaprule.cc
-rule/matchmode.cc
-rule/setdate.cc
-rules/rules1.cc
-rule/matchexpr.cc
-rule/setnow.cc
+options/options1.cc
 options/preambleonly.cc
-expire/checkfiles.cc
-rules/reset.cc
-rule/data.cc
-rule/matched.cc
-expr/update.cc
 options/logfile.cc
+options/mailfiles.cc
 options/data.cc
+options/instance.cc
+options/rulesfile.cc
+rules/swaprule.cc
+rules/update.cc
 options/inspect.cc
+options/setbase.cc
 options/initialize.cc
-expr/setinteractive.cc
-expr/script.cc
+rules/rules1.cc
+options/usesyslog.cc
 options/uselogfile.cc
-rules/matched.cc
-options/options1.cc
+rules/reset.cc
+options/expiration.cc
+options/configfile.cc
+rules/matchrule.cc
+rule/writenr.cc
+rule/writedate.cc
 rules/addrule.cc
-options/rulesfile.cc
-options/usesyslog.cc
-options/setbase.cc
-stringnocase/vmatch.cc
-options/instance.cc
-options/mailfiles.cc
-expr/matched.cc
-rule/update.cc
 rules/details.cc
-expr/match.cc
-options/expiration.cc
+rule/matchmode.cc
+rules/matched.cc
+rule/update.cc
+rule/data.cc
+rule/matched.cc
+rule/matchexpr.cc
+rule/setdate.cc
+rule/rule1.cc
+rule/reset.cc
+rule/setnow.cc
+expr/script.cc
+expr/setinteractive.cc
+expr/update.cc
+stringnocase/vmatch.cc
+expr/regex.cc
 stringnocase/vpattern.cc
-stringcase/destructor.cc
-specstring/vpattern.cc
-options/configfile.cc
+mail/insert.cc
 expr/input.cc
-specbase/destructor.cc
-expr/regex.cc
+mail/mail1.cc
+expr/data.cc
+expr/matched.cc
+expr/getmatchobject.cc
 stringnocase/destructor.cc
-stringcase/vmatch.cc
 expr/expr1.cc
-mail/insert.cc
-expr/data.cc
-mail/data.cc
-mail/mail1.cc
+stringcase/destructor.cc
 mail/rmheader.cc
-rulepattern/rulepattern1.cc
-uinput/reread2.cc
 mail/instance.cc
-cidr/data.cc
+expr/match.cc
+specstring/destructor.cc
+stringcase/vmatch.cc
+specstring/vpattern.cc
+mail/hdr.cc
 mail/initialize.cc
+specbase/destructor.cc
+mail/data.cc
+script/destructor.cc
+rulepattern/destructor.cc
+mail/copyto.cc
 rulepattern/vmatch.cc
-specstring/destructor.cc
-cidr/destructor.cc
+script/vmatch.cc
+script/vpattern.cc
 rulepattern/vpattern.cc
-uinput/get.cc
+cidr/destructor.cc
+cidr/vmatch.cc
 cidr/mask.cc
-rulepattern/destructor.cc
-expr/getmatchobject.cc
+cidr/data.cc
 cidr/binary.cc
-uinput/lineoffset.cc
+uinput/uinput.cc
+rulepattern/rulepattern1.cc
+uinput/next.cc
+cidr/vpattern.cc
+uinput/reread2.cc
+uinput/get.cc
 uinput/toeof.cc
+uinput/lineoffset.cc
 uinput/reread1.cc
 uinput/close.cc
-uinput/next.cc
-script/destructor.cc
-mail/copyto.cc
-uinput/uinput.cc
-parser/startif.cc
-script/vpattern.cc
-mail/hdr.cc
-cidr/vmatch.cc
-parser/regex.cc
-cidr/vpattern.cc
-script/vmatch.cc
+parser/date.cc
 parser/expression.cc
-parser/endrule.cc
+parser/startif.cc
 parser/error.cc
-parser/parse.cc
-parser/hdr.cc
-parser/parser1.cc
+parser/endrule.cc
 parser/matchmode.cc
-parser/date.cc
-parser/data.cc
-parser/action.cc
-parser/condterm.cc
+parser/regex.cc
 parser/beginrules.cc
-scanner/setidx.cc
+parser/condterm.cc
+parser/hdr.cc
+parser/parse.cc
 parser/addrule.cc
-scanner/toeof.cc
-scanner/rulesfile.cc
+parser/data.cc
+parser/parser1.cc
+parser/action.cc
 scanner/scanner1.cc
 scanner/toms.cc
-scanner/regex2initial.cc
-scanner/incnextoffset.cc
+scanner/toeof.cc
+scanner/setidx.cc
+scanner/rulesfile.cc
 scanner/error2initial.cc
-./preamble.cc
+scanner/nloffset.cc
 scanner/pushedstream.cc
+scanner/regex2initial.cc
+scanner/incnextoffset.cc
+scanner/allowfileswitching.cc
 scanner/action.cc
-scanner/nloffset.cc
-./usage.cc
+./preamble.cc
 ./handleexception.cc
+./usage.cc
 ./inspect.cc
-scanner/allowfileswitching.cc
 scanner/lex.cc
 ar cr ../libfiltermail.a *.o
 ranlib ../libfiltermail.a
@@ -669,10 +705,10 @@
 	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/filtermail ..
 	dpkg-deb --root-owner-group --build debian/.debhelper/filtermail/dbgsym-root ..
-dpkg-deb: building package 'filtermail' in '../filtermail_1.06.00-1_amd64.deb'.
+	dpkg-deb --root-owner-group --build debian/filtermail ..
 dpkg-deb: building package 'filtermail-dbgsym' in '../filtermail-dbgsym_1.06.00-1_amd64.deb'.
+dpkg-deb: building package 'filtermail' in '../filtermail_1.06.00-1_amd64.deb'.
  dpkg-genbuildinfo --build=binary -O../filtermail_1.06.00-1_amd64.buildinfo
  dpkg-genchanges --build=binary -O../filtermail_1.06.00-1_amd64.changes
 dpkg-genchanges: info: binary-only upload (no source code included)
@@ -680,12 +716,14 @@
 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/4187412/tmp/hooks/B01_cleanup starting
+I: user script /srv/workspace/pbuilder/4187412/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/2599309 and its subdirectories
-I: Current time: Mon Apr  6 18:42:01 -12 2026
-I: pbuilder-time-stamp: 1775544121
+I: removing directory /srv/workspace/pbuilder/4187412 and its subdirectories
+I: Current time: Wed Mar  5 14:21:59 +14 2025
+I: pbuilder-time-stamp: 1741134119