Diff of the two buildlogs:

--
--- b1/build.log	2024-04-28 19:56:32.419561593 +0000
+++ b2/build.log	2024-04-28 19:57:00.054385704 +0000
@@ -1,6 +1,6 @@
 I: pbuilder: network access will be disabled during build
-I: Current time: Sun Apr 28 07:55:42 -12 2024
-I: pbuilder-time-stamp: 1714334142
+I: Current time: Sun Jun  1 16:19:35 +14 2025
+I: pbuilder-time-stamp: 1748744375
 I: Building the build Environment
 I: extracting base tarball [/var/cache/pbuilder/trixie-reproducible-base.tgz]
 I: copying local configuration
@@ -26,54 +26,86 @@
 dpkg-source: info: unpacking libencode-jis2k-perl_0.05-1.debian.tar.xz
 I: Not using root during the build.
 I: Installing the build-deps
-I: user script /srv/workspace/pbuilder/34879/tmp/hooks/D02_print_environment starting
+I: user script /srv/workspace/pbuilder/55095/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 Jun  1 02:19 /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/55095/tmp/hooks/D01_modify_environment finished
+I: user script /srv/workspace/pbuilder/55095/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]="21" [3]="1" [4]="release" [5]="i686-pc-linux-gnu")
+  BASH_VERSION='5.2.21(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='a1f39db802274e5b8eb506059e59e2cf'
-  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='34879'
-  PS1='# '
-  PS2='> '
+  INVOCATION_ID=818eef868e6d4ab6a62e1eac18e1f9b5
+  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=55095
   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.FN8sp7Kv/pbuilderrc_krwf --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.FN8sp7Kv/b1 --logfile b1/build.log libencode-jis2k-perl_0.05-1.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.FN8sp7Kv/pbuilderrc_zBID --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.FN8sp7Kv/b2 --logfile b2/build.log libencode-jis2k-perl_0.05-1.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 6.1.0-20-amd64 #1 SMP PREEMPT_DYNAMIC Debian 6.1.85-1 (2024-04-11) x86_64 GNU/Linux
+  Linux i-capture-the-hostname 6.1.0-20-amd64 #1 SMP PREEMPT_DYNAMIC Debian 6.1.85-1 (2024-04-11) x86_64 GNU/Linux
 I: ls -l /bin
-  lrwxrwxrwx 1 root root 7 Apr 21 07:13 /bin -> usr/bin
-I: user script /srv/workspace/pbuilder/34879/tmp/hooks/D02_print_environment finished
+  lrwxrwxrwx 1 root root 7 May 26 17:47 /bin -> usr/bin
+I: user script /srv/workspace/pbuilder/55095/tmp/hooks/D02_print_environment finished
  -> Attempting to satisfy build-dependencies
  -> Creating pbuilder-satisfydepends-dummy package
 Package: pbuilder-satisfydepends-dummy
@@ -143,7 +175,7 @@
 Get: 29 http://deb.debian.org/debian trixie/main i386 po-debconf all 1.0.21+nmu1 [248 kB]
 Get: 30 http://deb.debian.org/debian trixie/main i386 debhelper all 13.15.3 [901 kB]
 Get: 31 http://deb.debian.org/debian trixie/main i386 libperl-dev i386 5.38.2-3 [1194 kB]
-Fetched 20.5 MB in 1s (26.3 MB/s)
+Fetched 20.5 MB in 0s (93.1 MB/s)
 debconf: delaying package configuration, since apt-utils is not installed
 Selecting previously unselected package sensible-utils.
 (Reading database ... 
(Reading database ... 5%
(Reading database ... 10%
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(Reading database ... 45%
(Reading database ... 50%
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(Reading database ... 60%
(Reading database ... 65%
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(Reading database ... 75%
(Reading database ... 80%
(Reading database ... 85%
(Reading database ... 90%
(Reading database ... 95%
(Reading database ... 100%
(Reading database ... 19884 files and directories currently installed.)
@@ -282,7 +314,11 @@
 Building tag database...
  -> Finished parsing the build-deps
 I: Building the package
-I: Running cd /build/reproducible-path/libencode-jis2k-perl-0.05/ && 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  > ../libencode-jis2k-perl_0.05-1_source.changes
+I: user script /srv/workspace/pbuilder/55095/tmp/hooks/A99_set_merged_usr starting
+Not re-configuring usrmerge for trixie
+I: user script /srv/workspace/pbuilder/55095/tmp/hooks/A99_set_merged_usr finished
+hostname: Name or service not known
+I: Running cd /build/reproducible-path/libencode-jis2k-perl-0.05/ && 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  > ../libencode-jis2k-perl_0.05-1_source.changes
 dpkg-buildpackage: info: source package libencode-jis2k-perl
 dpkg-buildpackage: info: source version 0.05-1
 dpkg-buildpackage: info: source distribution unstable
@@ -306,16 +342,16 @@
 Writing Makefile for Encode::JIS2K
 Writing MYMETA.yml and MYMETA.json
    dh_auto_build
-	make -j11
+	make -j21
 make[1]: Entering directory '/build/reproducible-path/libencode-jis2k-perl-0.05'
-"/usr/bin/perl"  /usr/bin/enc2xs -"Q" -o euc2k_t.c -f euc2k_t.fnm
 Running Mkbootstrap for JIS2K ()
+"/usr/bin/perl"  /usr/bin/enc2xs -"Q" -o euc2k_t.c -f euc2k_t.fnm
 "/usr/bin/perl"  /usr/bin/enc2xs -"Q" -o raw_t.c -f raw_t.fnm
 "/usr/bin/perl"  /usr/bin/enc2xs -"Q" -o sjis2k_t.c -f sjis2k_t.fnm
 chmod 644 "JIS2K.bs"
 "/usr/bin/perl" -MExtUtils::Command::MM -e 'cp_nonempty' -- JIS2K.bs blib/arch/auto/Encode/JIS2K/JIS2K.bs 644
-cp lib/Encode/JIS2K/2022JP3.pm blib/lib/Encode/JIS2K/2022JP3.pm
 cp JIS2K.pm blib/lib/Encode/JIS2K.pm
+cp lib/Encode/JIS2K/2022JP3.pm blib/lib/Encode/JIS2K/2022JP3.pm
 Reading shiftjisx0213 (shiftjisx0213)
 i686-linux-gnu-gcc -c  -I/usr/share/perl/5.38/Encode -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/libencode-jis2k-perl-0.05=. -fstack-protector-strong -Wformat -Werror=format-security -Wdate-time -D_FORTIFY_SOURCE=2   -DVERSION=\"0.05\" -DXS_VERSION=\"0.05\" -fPIC "-I/usr/lib/i386-linux-gnu/perl/5.38/CORE"   sjis2k_t.c
 Reading jis0213-1-raw (jis0213-1-raw)
@@ -333,7 +369,7 @@
 chmod 755 blib/arch/auto/Encode/JIS2K/JIS2K.so
 make[1]: Leaving directory '/build/reproducible-path/libencode-jis2k-perl-0.05'
    dh_auto_test
-	make -j11 test TEST_VERBOSE=1
+	make -j21 test TEST_VERBOSE=1
 make[1]: Entering directory '/build/reproducible-path/libencode-jis2k-perl-0.05'
 "/usr/bin/perl" -MExtUtils::Command::MM -e 'cp_nonempty' -- JIS2K.bs blib/arch/auto/Encode/JIS2K/JIS2K.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
@@ -342,31 +378,31 @@
 ok 1 - use Encode::JIS2K;
 ok 2 - decode x0213-1
 ok 3 - decode x0213-1 completely
-ok 4 - t/38997.utf eq t/x0213-1.utf
+ok 4 - t/55988.utf eq t/x0213-1.utf
 ok 5 - encode x0213-1
 ok 6 - encode x0213-1 completely
-ok 7 - t/38997.enc eq t/x0213-1.enc
+ok 7 - t/55988.enc eq t/x0213-1.enc
 ok 8 - RT/x0213-1/euc-jisx0213
 ok 9 - RT/x0213-1/shiftjisx0213
 ok 10 - RT/x0213-1/iso-2022-jp-3
 ok 11 - decode x0213-2
 ok 12 - decode x0213-2 completely
-ok 13 - t/38997.utf eq t/x0213-2.utf
+ok 13 - t/55988.utf eq t/x0213-2.utf
 ok 14 - encode x0213-2
 ok 15 - encode x0213-2 completely
-ok 16 - t/38997.enc eq t/x0213-2.enc
+ok 16 - t/55988.enc eq t/x0213-2.enc
 ok 17 - RT/x0213-2/euc-jisx0213
 ok 18 - RT/x0213-2/shiftjisx0213
 ok 19 - RT/x0213-2/iso-2022-jp-3
 ok
 All tests successful.
-Files=1, Tests=19,  0 wallclock secs ( 0.02 usr  0.00 sys +  0.10 cusr  0.02 csys =  0.14 CPU)
+Files=1, Tests=19,  0 wallclock secs ( 0.02 usr  0.00 sys +  0.06 cusr  0.00 csys =  0.08 CPU)
 Result: PASS
 make[1]: Leaving directory '/build/reproducible-path/libencode-jis2k-perl-0.05'
    create-stamp debian/debhelper-build-stamp
    dh_prep
    dh_auto_install --destdir=debian/libencode-jis2k-perl/
-	make -j11 install DESTDIR=/build/reproducible-path/libencode-jis2k-perl-0.05/debian/libencode-jis2k-perl AM_UPDATE_INFO_DIR=no PREFIX=/usr
+	make -j21 install DESTDIR=/build/reproducible-path/libencode-jis2k-perl-0.05/debian/libencode-jis2k-perl AM_UPDATE_INFO_DIR=no PREFIX=/usr
 make[1]: Entering directory '/build/reproducible-path/libencode-jis2k-perl-0.05'
 "/usr/bin/perl" -MExtUtils::Command::MM -e 'cp_nonempty' -- JIS2K.bs blib/arch/auto/Encode/JIS2K/JIS2K.bs 644
 Files found in blib/arch: installing files in blib/lib into architecture dependent library tree
@@ -399,12 +435,14 @@
 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/55095/tmp/hooks/B01_cleanup starting
+I: user script /srv/workspace/pbuilder/55095/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/34879 and its subdirectories
-I: Current time: Sun Apr 28 07:56:31 -12 2024
-I: pbuilder-time-stamp: 1714334191
+I: removing directory /srv/workspace/pbuilder/55095 and its subdirectories
+I: Current time: Sun Jun  1 16:19:58 +14 2025
+I: pbuilder-time-stamp: 1748744398