Diff of the two buildlogs:

--
--- b1/build.log	2025-03-01 17:15:57.711112462 +0000
+++ b2/build.log	2025-03-01 17:16:56.840436899 +0000
@@ -1,6 +1,6 @@
 I: pbuilder: network access will be disabled during build
-I: Current time: Fri Apr  3 11:38:24 -12 2026
-I: pbuilder-time-stamp: 1775259504
+I: Current time: Sun Mar  2 07:15:59 +14 2025
+I: pbuilder-time-stamp: 1740849359
 I: Building the build Environment
 I: extracting base tarball [/var/cache/pbuilder/trixie-reproducible-base.tgz]
 I: copying local configuration
@@ -22,51 +22,83 @@
 dpkg-source: info: unpacking liblwp-mediatypes-perl_6.04-2.debian.tar.xz
 I: using fakeroot in build.
 I: Installing the build-deps
-I: user script /srv/workspace/pbuilder/971841/tmp/hooks/D02_print_environment starting
+I: user script /srv/workspace/pbuilder/2760835/tmp/hooks/D01_modify_environment starting
+debug: Running on infom01-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  1 17:16 /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/2760835/tmp/hooks/D01_modify_environment finished
+I: user script /srv/workspace/pbuilder/2760835/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'
+  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=12 '
-  DISTRIBUTION='trixie'
-  HOME='/root'
-  HOST_ARCH='amd64'
+  DIRSTACK=()
+  DISTRIBUTION=trixie
+  EUID=0
+  FUNCNAME=([0]="Echo" [1]="main")
+  GROUPS=()
+  HOME=/root
+  HOSTNAME=i-capture-the-hostname
+  HOSTTYPE=x86_64
+  HOST_ARCH=amd64
   IFS=' 	
   '
-  INVOCATION_ID='d0f0805ac4d640b1baa7ecd17a16b0ae'
-  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='971841'
-  PS1='# '
-  PS2='> '
+  INVOCATION_ID=9fd0126c50634baca108ca88fa738f3a
+  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=2760835
   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.NSWj38AT/pbuilderrc_1y9a --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.NSWj38AT/b1 --logfile b1/build.log liblwp-mediatypes-perl_6.04-2.dsc'
-  SUDO_GID='109'
-  SUDO_UID='104'
-  SUDO_USER='jenkins'
-  TERM='unknown'
-  TZ='/usr/share/zoneinfo/Etc/GMT+12'
-  USER='root'
-  _='/usr/bin/systemd-run'
+  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.NSWj38AT/pbuilderrc_NIAR --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.NSWj38AT/b2 --logfile b2/build.log liblwp-mediatypes-perl_6.04-2.dsc'
+  SUDO_GID=109
+  SUDO_UID=104
+  SUDO_USER=jenkins
+  TERM=unknown
+  TZ=/usr/share/zoneinfo/Etc/GMT-14
+  UID=0
+  USER=root
+  _='I: set'
 I: uname -a
-  Linux infom02-amd64 6.12.9+bpo-amd64 #1 SMP PREEMPT_DYNAMIC Debian 6.12.9-1~bpo12+1 (2025-01-19) x86_64 GNU/Linux
+  Linux i-capture-the-hostname 6.1.0-31-cloud-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/971841/tmp/hooks/D02_print_environment finished
+  lrwxrwxrwx 1 root root 7 Nov 22 14:40 /bin -> usr/bin
+I: user script /srv/workspace/pbuilder/2760835/tmp/hooks/D02_print_environment finished
  -> Attempting to satisfy build-dependencies
  -> Creating pbuilder-satisfydepends-dummy package
 Package: pbuilder-satisfydepends-dummy
@@ -136,7 +168,7 @@
 Get: 30 http://deb.debian.org/debian trixie/main amd64 debhelper all 13.24.1 [920 kB]
 Get: 31 http://deb.debian.org/debian trixie/main amd64 libtry-tiny-perl all 0.32-1 [22.9 kB]
 Get: 32 http://deb.debian.org/debian trixie/main amd64 libtest-fatal-perl all 0.017-1 [13.2 kB]
-Fetched 20.6 MB in 0s (95.7 MB/s)
+Fetched 20.6 MB in 0s (72.9 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 ... 19802 files and directories currently installed.)
@@ -284,7 +316,11 @@
 fakeroot is already the newest version (1.37-1).
 0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
 I: Building the package
-I: Running cd /build/reproducible-path/liblwp-mediatypes-perl-6.04/ && 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  > ../liblwp-mediatypes-perl_6.04-2_source.changes
+I: user script /srv/workspace/pbuilder/2760835/tmp/hooks/A99_set_merged_usr starting
+Not re-configuring usrmerge for trixie
+I: user script /srv/workspace/pbuilder/2760835/tmp/hooks/A99_set_merged_usr finished
+hostname: Name or service not known
+I: Running cd /build/reproducible-path/liblwp-mediatypes-perl-6.04/ && 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  > ../liblwp-mediatypes-perl_6.04-2_source.changes
 dpkg-buildpackage: info: source package liblwp-mediatypes-perl
 dpkg-buildpackage: info: source version 6.04-2
 dpkg-buildpackage: info: source distribution unstable
@@ -403,9 +439,9 @@
 ok 38
 ok 39
 ok 40 - Cannot pass unblessed refs
-# Image suffixes: uvi pct fbs dxf sub png gif svg xbm fpx fh7 fhc pnm wbmp btif pbm mdi ief pcx cgm svgz ktx djv jpe tif xpm psd g3 tiff ppm fh4 bmp jpg xwd mmr pic ras webp fh uvvg dwg jpeg ico fh5 cmx uvvi fst pgm rlc djvu npx xif rgb uvg
+# Image suffixes: ktx uvvg fhc wbmp rgb npx pcx cmx xwd pgm fh mdi cgm dwg fst dxf xif jpe fh7 gif uvg djvu pic fh4 btif ief mmr jpeg uvi svgz pbm fpx svg sub xbm bmp tiff djv fbs jpg pnm ppm tif fh5 png pct ras g3 xpm ico webp uvvi psd rlc
 ok 41
-# Audio suffixes: wax aac m2a uvva aifc dts mp2 ecelp4800 spx mp4a adp midi mpga mp2a m3u weba au wav dtshd wma rmi eol oga mp3 ecelp7470 pya snd ogg aif kar lvp m3a rip rmp ram uva aiff mid ra ecelp9600 dra
+# Audio suffixes: ecelp9600 eol mp2a aif m3a adp ecelp4800 uvva m3u mid ram midi dts dra ecelp7470 mp4a spx rmi ogg au wma aiff mp3 snd ra weba dtshd wav aifc mpga kar rmp aac mp2 oga lvp wax uva m2a pya rip
 ok 42
 ok 43
 ok 44
@@ -414,7 +450,7 @@
 1..46
 ok
 All tests successful.
-Files=2, Tests=47,  0 wallclock secs ( 0.01 usr  0.01 sys +  0.31 cusr  0.05 csys =  0.38 CPU)
+Files=2, Tests=47,  0 wallclock secs ( 0.01 usr  0.00 sys +  0.16 cusr  0.01 csys =  0.18 CPU)
 Result: PASS
 make[1]: Leaving directory '/build/reproducible-path/liblwp-mediatypes-perl-6.04'
    create-stamp debian/debhelper-build-stamp
@@ -448,12 +484,14 @@
 dpkg-buildpackage: info: binary-only upload (no source included)
 dpkg-genchanges: info: not including original source code in upload
 I: copying local configuration
+I: user script /srv/workspace/pbuilder/2760835/tmp/hooks/B01_cleanup starting
+I: user script /srv/workspace/pbuilder/2760835/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/971841 and its subdirectories
-I: Current time: Fri Apr  3 11:38:56 -12 2026
-I: pbuilder-time-stamp: 1775259536
+I: removing directory /srv/workspace/pbuilder/2760835 and its subdirectories
+I: Current time: Sun Mar  2 07:16:56 +14 2025
+I: pbuilder-time-stamp: 1740849416