Diff of the two buildlogs:

--
--- b1/build.log	2025-02-02 06:51:49.197860811 +0000
+++ b2/build.log	2025-02-02 06:52:46.295272025 +0000
@@ -1,6 +1,6 @@
 I: pbuilder: network access will be disabled during build
-I: Current time: Sat Feb  1 18:50:07 -12 2025
-I: pbuilder-time-stamp: 1738479007
+I: Current time: Sun Mar  8 03:14:51 +14 2026
+I: pbuilder-time-stamp: 1772889291
 I: Building the build Environment
 I: extracting base tarball [/var/cache/pbuilder/unstable-reproducible-base.tgz]
 I: copying local configuration
@@ -23,54 +23,86 @@
 dpkg-source: info: unpacking libtext-csv-xs-perl_1.60-1.debian.tar.xz
 I: Not using root during the build.
 I: Installing the build-deps
-I: user script /srv/workspace/pbuilder/27406/tmp/hooks/D02_print_environment starting
+I: user script /srv/workspace/pbuilder/113929/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 Mar  7 13:15 /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/113929/tmp/hooks/D01_modify_environment finished
+I: user script /srv/workspace/pbuilder/113929/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='unstable'
-  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=unstable
+  EUID=0
+  FUNCNAME=([0]="Echo" [1]="main")
+  GROUPS=()
+  HOME=/root
+  HOSTNAME=i-capture-the-hostname
+  HOSTTYPE=i686
+  HOST_ARCH=i386
   IFS=' 	
   '
-  INVOCATION_ID='fa4f2197009b48588a8d0dd2b686cf1f'
-  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='27406'
-  PS1='# '
-  PS2='> '
+  INVOCATION_ID=1fc8aeff98684a539d8293f3f74b55d3
+  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=113929
   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.6oY0Paaw/pbuilderrc_hWPB --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.6oY0Paaw/b1 --logfile b1/build.log libtext-csv-xs-perl_1.60-1.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.6oY0Paaw/pbuilderrc_OIWH --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.6oY0Paaw/b2 --logfile b2/build.log libtext-csv-xs-perl_1.60-1.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 6.1.0-30-amd64 #1 SMP PREEMPT_DYNAMIC Debian 6.1.124-1 (2025-01-12) x86_64 GNU/Linux
+  Linux i-capture-the-hostname 6.1.0-30-amd64 #1 SMP PREEMPT_DYNAMIC Debian 6.1.124-1 (2025-01-12) 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/27406/tmp/hooks/D02_print_environment finished
+  lrwxrwxrwx 1 root root 7 Nov 22  2024 /bin -> usr/bin
+I: user script /srv/workspace/pbuilder/113929/tmp/hooks/D02_print_environment finished
  -> Attempting to satisfy build-dependencies
  -> Creating pbuilder-satisfydepends-dummy package
 Package: pbuilder-satisfydepends-dummy
@@ -140,7 +172,7 @@
 Get: 29 http://deb.debian.org/debian unstable/main i386 po-debconf all 1.0.21+nmu1 [248 kB]
 Get: 30 http://deb.debian.org/debian unstable/main i386 debhelper all 13.24.1 [920 kB]
 Get: 31 http://deb.debian.org/debian unstable/main i386 libperl-dev i386 5.40.0-8 [1223 kB]
-Fetched 22.0 MB in 1s (18.0 MB/s)
+Fetched 22.0 MB in 0s (133 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 ... 19826 files and directories currently installed.)
@@ -279,7 +311,11 @@
 Building tag database...
  -> Finished parsing the build-deps
 I: Building the package
-I: Running cd /build/reproducible-path/libtext-csv-xs-perl-1.60/ && 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  > ../libtext-csv-xs-perl_1.60-1_source.changes
+I: user script /srv/workspace/pbuilder/113929/tmp/hooks/A99_set_merged_usr starting
+Not re-configuring usrmerge for unstable
+I: user script /srv/workspace/pbuilder/113929/tmp/hooks/A99_set_merged_usr finished
+hostname: Name or service not known
+I: Running cd /build/reproducible-path/libtext-csv-xs-perl-1.60/ && 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  > ../libtext-csv-xs-perl_1.60-1_source.changes
 dpkg-buildpackage: info: source package libtext-csv-xs-perl
 dpkg-buildpackage: info: source version 1.60-1
 dpkg-buildpackage: info: source distribution unstable
@@ -301,10 +337,10 @@
 Writing Makefile for Text::CSV_XS
 Writing MYMETA.yml and MYMETA.json
    dh_auto_build
-	make -j11
+	make -j21
 make[1]: Entering directory '/build/reproducible-path/libtext-csv-xs-perl-1.60'
-Running Mkbootstrap for CSV_XS ()
 "/usr/bin/perl" "/usr/share/perl/5.40/ExtUtils/xsubpp"  -typemap '/usr/share/perl/5.40/ExtUtils/typemap'  CSV_XS.xs > CSV_XS.xsc
+Running Mkbootstrap for CSV_XS ()
 chmod 644 "CSV_XS.bs"
 "/usr/bin/perl" -MExtUtils::Command::MM -e 'cp_nonempty' -- CSV_XS.bs blib/arch/auto/Text/CSV_XS/CSV_XS.bs 644
 cp CSV_XS.pm blib/lib/Text/CSV_XS.pm
@@ -318,7 +354,7 @@
 Manifying 1 pod document
 make[1]: Leaving directory '/build/reproducible-path/libtext-csv-xs-perl-1.60'
    dh_auto_test
-	make -j11 test TEST_VERBOSE=1
+	make -j21 test TEST_VERBOSE=1
 make[1]: Entering directory '/build/reproducible-path/libtext-csv-xs-perl-1.60'
 "/usr/bin/perl" -MExtUtils::Command::MM -e 'cp_nonempty' -- CSV_XS.bs blib/arch/auto/Text/CSV_XS/CSV_XS.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
@@ -961,22 +997,22 @@
 # Retrieving data
 ok 48 - Fetch field 0
 ok 49 - EOF
-# Row 0: ARRAY(0x57d29618) (id name)
+# Row 0: ARRAY(0x57bb3ed4) (id name)
 ok 50 - Fetch field 1
 ok 51 - EOF
-# Row 1: ARRAY(0x5816dc7c) (1 Alligator Descartes)
+# Row 1: ARRAY(0x57ffba88) (1 Alligator Descartes)
 ok 52 - Fetch field 2
 ok 53 - EOF
-# Row 2: ARRAY(0x5825a2e0) (3 Jochen Wiedmann)
+# Row 2: ARRAY(0x580e7bcc) (3 Jochen Wiedmann)
 ok 54 - Fetch field 3
 ok 55 - EOF
-# Row 3: ARRAY(0x5825a1a0) (2 Tim Bunce)
+# Row 3: ARRAY(0x57ffb9e8) (2 Tim Bunce)
 ok 56 - Fetch field 4
 ok 57 - EOF
-# Row 4: ARRAY(0x5825a09c) ( 4 Andreas K�nig)
+# Row 4: ARRAY(0x580e9230) ( 4 Andreas K�nig)
 ok 58 - Fetch field 5
 ok 59 - EOF
-# Row 5: ARRAY(0x5825a1b4) (5)
+# Row 5: ARRAY(0x580e8f60) (5)
 ok 60 - Fetch field 6
 ok 61 - EOF
 ok 62 - 1 - getline ESC +, '\n'
@@ -1080,22 +1116,22 @@
 # Retrieving data
 ok 48 - Fetch field 0
 ok 49 - EOF
-# Row 0: ARRAY(0x585f3c80) (id name)
+# Row 0: ARRAY(0x574fa984) (id name)
 ok 50 - Fetch field 1
 ok 51 - EOF
-# Row 1: ARRAY(0x585f38fc) (1 Alligator Descartes)
+# Row 1: ARRAY(0x57509bfc) (1 Alligator Descartes)
 ok 52 - Fetch field 2
 ok 53 - EOF
-# Row 2: ARRAY(0x585f394c) (3 Jochen Wiedmann)
+# Row 2: ARRAY(0x57a32f14) (3 Jochen Wiedmann)
 ok 54 - Fetch field 3
 ok 55 - EOF
-# Row 3: ARRAY(0x585f3c94) (2 Tim Bunce)
+# Row 3: ARRAY(0x57a33180) (2 Tim Bunce)
 ok 56 - Fetch field 4
 ok 57 - EOF
-# Row 4: ARRAY(0x585f39c4) ( 4 Andreas K�nig)
+# Row 4: ARRAY(0x57a32b2c) ( 4 Andreas K�nig)
 ok 58 - Fetch field 5
 ok 59 - EOF
-# Row 5: ARRAY(0x585f3e9c) (5)
+# Row 5: ARRAY(0x579fcd40) (5)
 ok 60 - Fetch field 6
 ok 61 - EOF
 ok 62 - 1 - getline ESC +, '\n'
@@ -1199,22 +1235,22 @@
 # Retrieving data
 ok 48 - Fetch field 0
 ok 49 - EOF
-# Row 0: ARRAY(0x58adcfe8) (id name)
+# Row 0: ARRAY(0x570155f0) (id name)
 ok 50 - Fetch field 1
 ok 51 - EOF
-# Row 1: ARRAY(0x58b14ecc) (1 Alligator Descartes)
+# Row 1: ARRAY(0x57015578) (1 Alligator Descartes)
 ok 52 - Fetch field 2
 ok 53 - EOF
-# Row 2: ARRAY(0x58b14f58) (3 Jochen Wiedmann)
+# Row 2: ARRAY(0x56ae7974) (3 Jochen Wiedmann)
 ok 54 - Fetch field 3
 ok 55 - EOF
-# Row 3: ARRAY(0x58b15458) (2 Tim Bunce)
+# Row 3: ARRAY(0x56ae7b7c) (2 Tim Bunce)
 ok 56 - Fetch field 4
 ok 57 - EOF
-# Row 4: ARRAY(0x58b156c4) ( 4 Andreas K�nig)
+# Row 4: ARRAY(0x56ae74d8) ( 4 Andreas K�nig)
 ok 58 - Fetch field 5
 ok 59 - EOF
-# Row 5: ARRAY(0x58a2d138) (5)
+# Row 5: ARRAY(0x57015c58) (5)
 ok 60 - Fetch field 6
 ok 61 - EOF
 ok 62 - new csv
@@ -29899,8 +29935,8 @@
 ok 27 - 9 in invalid
 ok 28 - xxx in invalid
 ok 29 - DIAX in invalid
-ok 30 - ARRAY(0x57afdedc) in invalid
-ok 31 - HASH(0x57afe044) in invalid
+ok 30 - ARRAY(0x58e842dc) in invalid
+ok 31 - HASH(0x58eb8638) in invalid
 ok 32 - new with 0
 ok 33 - Set to none
 ok 34 - new with 1
@@ -29942,13 +29978,13 @@
 ok 70 - Empty
 ok 71 - new 5
 ok 72 - Undef
-ok 73 - new CODE(0x57ad3f88)
+ok 73 - new CODE(0x58e14ee8)
 ok 74 - Callback return
-ok 75 - new CODE(0x57ad3fec)
+ok 75 - new CODE(0x58e14f4c)
 ok 76 - Callback assign
-ok 77 - new CODE(0x57ad4050)
+ok 77 - new CODE(0x58e14fb0)
 ok 78 - Callback subst
-ok 79 - new CODE(0x57b342e4)
+ok 79 - new CODE(0x58ebc4f4)
 ok 80 - Callback calculations
 ok 81 - new 3 hr
 ok 82 - Set column names
@@ -53046,13 +53082,13 @@
 ok 21 - IOIOIO...
 ok
 All tests successful.
-Files=34, Tests=52594, 41 wallclock secs ( 5.74 usr  0.70 sys + 38.76 cusr  1.42 csys = 46.62 CPU)
+Files=34, Tests=52594, 25 wallclock secs ( 3.04 usr  0.32 sys + 24.58 cusr  0.80 csys = 28.74 CPU)
 Result: PASS
 make[1]: Leaving directory '/build/reproducible-path/libtext-csv-xs-perl-1.60'
    create-stamp debian/debhelper-build-stamp
    dh_prep
    dh_auto_install --destdir=debian/libtext-csv-xs-perl/
-	make -j11 install DESTDIR=/build/reproducible-path/libtext-csv-xs-perl-1.60/debian/libtext-csv-xs-perl AM_UPDATE_INFO_DIR=no PREFIX=/usr
+	make -j21 install DESTDIR=/build/reproducible-path/libtext-csv-xs-perl-1.60/debian/libtext-csv-xs-perl AM_UPDATE_INFO_DIR=no PREFIX=/usr
 make[1]: Entering directory '/build/reproducible-path/libtext-csv-xs-perl-1.60'
 "/usr/bin/perl" -MExtUtils::Command::MM -e 'cp_nonempty' -- CSV_XS.bs blib/arch/auto/Text/CSV_XS/CSV_XS.bs 644
 Manifying 1 pod document
@@ -53093,12 +53129,14 @@
 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/113929/tmp/hooks/B01_cleanup starting
+I: user script /srv/workspace/pbuilder/113929/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/27406 and its subdirectories
-I: Current time: Sat Feb  1 18:51:47 -12 2025
-I: pbuilder-time-stamp: 1738479107
+I: removing directory /srv/workspace/pbuilder/113929 and its subdirectories
+I: Current time: Sun Mar  8 03:15:44 +14 2026
+I: pbuilder-time-stamp: 1772889344