Diff of the two buildlogs:

--
--- b1/build.log	2025-03-21 05:16:45.090829535 +0000
+++ b2/build.log	2025-03-21 05:19:07.292411709 +0000
@@ -1,6 +1,6 @@
 I: pbuilder: network access will be disabled during build
-I: Current time: Wed Apr 22 23:38:59 -12 2026
-I: pbuilder-time-stamp: 1776944339
+I: Current time: Fri Mar 21 19:16:49 +14 2025
+I: pbuilder-time-stamp: 1742534209
 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 libip-geolocation-mmdb-perl_1.013-1.debian.tar.xz
 I: Not using root during the build.
 I: Installing the build-deps
-I: user script /srv/workspace/pbuilder/866184/tmp/hooks/D02_print_environment starting
+I: user script /srv/workspace/pbuilder/716359/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 21 05:17 /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/716359/tmp/hooks/D01_modify_environment finished
+I: user script /srv/workspace/pbuilder/716359/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='89ddded2a03949afa0f39b3df5916198'
-  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='866184'
-  PS1='# '
-  PS2='> '
+  INVOCATION_ID=6482306316534847813cb0a9fbae16bc
+  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=716359
   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.inYUszuV/pbuilderrc_bIGb --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.inYUszuV/b1 --logfile b1/build.log libip-geolocation-mmdb-perl_1.013-1.dsc'
-  SUDO_GID='111'
-  SUDO_UID='106'
-  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.inYUszuV/pbuilderrc_Txo7 --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.inYUszuV/b2 --logfile b2/build.log libip-geolocation-mmdb-perl_1.013-1.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 ionos15-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 6.1.0-32-amd64 #1 SMP PREEMPT_DYNAMIC Debian 6.1.129-1 (2025-03-06) x86_64 GNU/Linux
 I: ls -l /bin
-  lrwxrwxrwx 1 root root 7 Mar  4  2025 /bin -> usr/bin
-I: user script /srv/workspace/pbuilder/866184/tmp/hooks/D02_print_environment finished
+  lrwxrwxrwx 1 root root 7 Mar  4 11:20 /bin -> usr/bin
+I: user script /srv/workspace/pbuilder/716359/tmp/hooks/D02_print_environment finished
  -> Attempting to satisfy build-dependencies
  -> Creating pbuilder-satisfydepends-dummy package
 Package: pbuilder-satisfydepends-dummy
@@ -146,7 +178,7 @@
 Get: 34 http://deb.debian.org/debian unstable/main amd64 libpkgconf3 amd64 1.8.1-4 [36.4 kB]
 Get: 35 http://deb.debian.org/debian unstable/main amd64 pkgconf-bin amd64 1.8.1-4 [30.2 kB]
 Get: 36 http://deb.debian.org/debian unstable/main amd64 pkgconf amd64 1.8.1-4 [26.2 kB]
-Fetched 22.1 MB in 1s (28.5 MB/s)
+Fetched 22.1 MB in 7s (2989 kB/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 ... 19805 files and directories currently installed.)
@@ -305,7 +337,11 @@
 Building tag database...
  -> Finished parsing the build-deps
 I: Building the package
-I: Running cd /build/reproducible-path/libip-geolocation-mmdb-perl-1.013/ && 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  > ../libip-geolocation-mmdb-perl_1.013-1_source.changes
+I: user script /srv/workspace/pbuilder/716359/tmp/hooks/A99_set_merged_usr starting
+Not re-configuring usrmerge for unstable
+I: user script /srv/workspace/pbuilder/716359/tmp/hooks/A99_set_merged_usr finished
+hostname: Name or service not known
+I: Running cd /build/reproducible-path/libip-geolocation-mmdb-perl-1.013/ && 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  > ../libip-geolocation-mmdb-perl_1.013-1_source.changes
 dpkg-buildpackage: info: source package libip-geolocation-mmdb-perl
 dpkg-buildpackage: info: source version 1.013-1
 dpkg-buildpackage: info: source distribution unstable
@@ -328,14 +364,14 @@
 Writing Makefile for IP::Geolocation::MMDB
 Writing MYMETA.yml and MYMETA.json
    dh_auto_build
-	make -j42
+	make -j20
 make[1]: Entering directory '/build/reproducible-path/libip-geolocation-mmdb-perl-1.013'
+cp lib/IP/Geolocation/MMDB.pm blib/lib/IP/Geolocation/MMDB.pm
+cp lib/IP/Geolocation/MMDB/Metadata.pm blib/lib/IP/Geolocation/MMDB/Metadata.pm
 Running Mkbootstrap for MMDB ()
 "/usr/bin/perl" "/usr/share/perl/5.40/ExtUtils/xsubpp"  -typemap '/usr/share/perl/5.40/ExtUtils/typemap' -typemap '/build/reproducible-path/libip-geolocation-mmdb-perl-1.013/typemap'  MMDB.xs > MMDB.xsc
 chmod 644 "MMDB.bs"
 "/usr/bin/perl" -MExtUtils::Command::MM -e 'cp_nonempty' -- MMDB.bs blib/arch/auto/IP/Geolocation/MMDB/MMDB.bs 644
-cp lib/IP/Geolocation/MMDB/Metadata.pm blib/lib/IP/Geolocation/MMDB/Metadata.pm
-cp lib/IP/Geolocation/MMDB.pm blib/lib/IP/Geolocation/MMDB.pm
 mv MMDB.xsc MMDB.c
 x86_64-linux-gnu-gcc -c   -I/usr/include/x86_64-linux-gnu  -D_REENTRANT -D_GNU_SOURCE -DDEBIAN -fwrapv -fno-strict-aliasing -pipe -I/usr/local/include -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64 -g -O2 -Werror=implicit-function-declaration -ffile-prefix-map=/build/reproducible-path/libip-geolocation-mmdb-perl-1.013=. -fstack-protector-strong -fstack-clash-protection -Wformat -Werror=format-security -fcf-protection -Wdate-time -D_FORTIFY_SOURCE=2   -DVERSION=\"1.013\" -DXS_VERSION=\"1.013\" -fPIC "-I/usr/lib/x86_64-linux-gnu/perl/5.40/CORE"   MMDB.c
 rm -f blib/arch/auto/IP/Geolocation/MMDB/MMDB.so
@@ -346,7 +382,7 @@
 Manifying 2 pod documents
 make[1]: Leaving directory '/build/reproducible-path/libip-geolocation-mmdb-perl-1.013'
    dh_auto_test
-	make -j42 test TEST_VERBOSE=1
+	make -j20 test TEST_VERBOSE=1
 make[1]: Entering directory '/build/reproducible-path/libip-geolocation-mmdb-perl-1.013'
 "/usr/bin/perl" -MExtUtils::Command::MM -e 'cp_nonempty' -- MMDB.bs blib/arch/auto/IP/Geolocation/MMDB/MMDB.bs 644
 PERL_DL_NONLAZY=1 "/usr/bin/perl" "-MExtUtils::Command::MM" "-MTest::Harness" "-e" "undef *Test::Harness::Switches; test_harness(1, 'blib/lib', 'blib/arch')" t/*.t
@@ -402,13 +438,13 @@
 ok
 t/release-kwalitee.t ..... skipped: these tests are for release candidate testing
 All tests successful.
-Files=4, Tests=44,  0 wallclock secs ( 0.03 usr  0.00 sys +  0.12 cusr  0.01 csys =  0.16 CPU)
+Files=4, Tests=44,  1 wallclock secs ( 0.06 usr  0.01 sys +  0.25 cusr  0.06 csys =  0.38 CPU)
 Result: PASS
 make[1]: Leaving directory '/build/reproducible-path/libip-geolocation-mmdb-perl-1.013'
    create-stamp debian/debhelper-build-stamp
    dh_prep
    dh_auto_install --destdir=debian/libip-geolocation-mmdb-perl/
-	make -j42 install DESTDIR=/build/reproducible-path/libip-geolocation-mmdb-perl-1.013/debian/libip-geolocation-mmdb-perl AM_UPDATE_INFO_DIR=no PREFIX=/usr
+	make -j20 install DESTDIR=/build/reproducible-path/libip-geolocation-mmdb-perl-1.013/debian/libip-geolocation-mmdb-perl AM_UPDATE_INFO_DIR=no PREFIX=/usr
 make[1]: Entering directory '/build/reproducible-path/libip-geolocation-mmdb-perl-1.013'
 "/usr/bin/perl" -MExtUtils::Command::MM -e 'cp_nonempty' -- MMDB.bs blib/arch/auto/IP/Geolocation/MMDB/MMDB.bs 644
 Manifying 2 pod documents
@@ -436,8 +472,8 @@
    dh_gencontrol
    dh_md5sums
    dh_builddeb
-dpkg-deb: building package 'libip-geolocation-mmdb-perl' in '../libip-geolocation-mmdb-perl_1.013-1_amd64.deb'.
 dpkg-deb: building package 'libip-geolocation-mmdb-perl-dbgsym' in '../libip-geolocation-mmdb-perl-dbgsym_1.013-1_amd64.deb'.
+dpkg-deb: building package 'libip-geolocation-mmdb-perl' in '../libip-geolocation-mmdb-perl_1.013-1_amd64.deb'.
  dpkg-genbuildinfo --build=binary -O../libip-geolocation-mmdb-perl_1.013-1_amd64.buildinfo
  dpkg-genchanges --build=binary -O../libip-geolocation-mmdb-perl_1.013-1_amd64.changes
 dpkg-genchanges: info: binary-only upload (no source code included)
@@ -445,12 +481,14 @@
 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/716359/tmp/hooks/B01_cleanup starting
+I: user script /srv/workspace/pbuilder/716359/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/866184 and its subdirectories
-I: Current time: Wed Apr 22 23:39:43 -12 2026
-I: pbuilder-time-stamp: 1776944383
+I: removing directory /srv/workspace/pbuilder/716359 and its subdirectories
+I: Current time: Fri Mar 21 19:19:06 +14 2025
+I: pbuilder-time-stamp: 1742534346