Diff of the two buildlogs:

--
--- b1/build.log	2025-01-08 04:21:49.703489372 +0000
+++ b2/build.log	2025-01-08 04:23:18.183452656 +0000
@@ -1,6 +1,6 @@
 I: pbuilder: network access will be disabled during build
-I: Current time: Tue Jan  7 16:20:33 -12 2025
-I: pbuilder-time-stamp: 1736310033
+I: Current time: Wed Feb 11 00:44:52 +14 2026
+I: pbuilder-time-stamp: 1770720292
 I: Building the build Environment
 I: extracting base tarball [/var/cache/pbuilder/trixie-reproducible-base.tgz]
 I: copying local configuration
@@ -16,61 +16,90 @@
 I: copying [./liblockfile_1.17.orig.tar.gz]
 I: copying [./liblockfile_1.17-2.debian.tar.bz2]
 I: Extracting source
-gpgv: Signature made Tue Dec 31 22:06:22 2024 
-gpgv:                using RSA key C6045C813887B77C2DFF97A57C56ACFE947897D8
-gpgv: Can't check signature: No public key
-dpkg-source: warning: cannot verify inline signature for ./liblockfile_1.17-2.dsc: no acceptable signature found
+dpkg-source: warning: cannot verify inline signature for ./liblockfile_1.17-2.dsc: unsupported subcommand
 dpkg-source: info: extracting liblockfile in liblockfile-1.17
 dpkg-source: info: unpacking liblockfile_1.17.orig.tar.gz
 dpkg-source: info: unpacking liblockfile_1.17-2.debian.tar.bz2
 I: using fakeroot in build.
 I: Installing the build-deps
-I: user script /srv/workspace/pbuilder/146680/tmp/hooks/D02_print_environment starting
+I: user script /srv/workspace/pbuilder/4056668/tmp/hooks/D01_modify_environment starting
+debug: Running on codethink03-arm64.
+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 Feb 10 10:45 /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/4056668/tmp/hooks/D01_modify_environment finished
+I: user script /srv/workspace/pbuilder/4056668/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='arm64'
-  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]="aarch64-unknown-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=arm64
+  DEBIAN_FRONTEND=noninteractive
   DEB_BUILD_OPTIONS='buildinfo=+all reproducible=+all parallel=12 '
-  DISTRIBUTION='trixie'
-  HOME='/root'
-  HOST_ARCH='arm64'
+  DIRSTACK=()
+  DISTRIBUTION=trixie
+  EUID=0
+  FUNCNAME=([0]="Echo" [1]="main")
+  GROUPS=()
+  HOME=/root
+  HOSTNAME=i-capture-the-hostname
+  HOSTTYPE=aarch64
+  HOST_ARCH=arm64
   IFS=' 	
   '
-  INVOCATION_ID='a574b1f67b004da897314547ccbc1ba9'
-  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='146680'
-  PS1='# '
-  PS2='> '
+  INVOCATION_ID=3ab8186f414c4d5189853995e91c17ed
+  LANG=C
+  LANGUAGE=nl_BE:nl
+  LC_ALL=C
+  MACHTYPE=aarch64-unknown-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=4056668
   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.YrIf9khO/pbuilderrc_WU8Y --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.YrIf9khO/b1 --logfile b1/build.log liblockfile_1.17-2.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'
-  http_proxy='http://192.168.101.4:3128'
+  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.YrIf9khO/pbuilderrc_K5yi --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.YrIf9khO/b2 --logfile b2/build.log liblockfile_1.17-2.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'
+  http_proxy=http://192.168.101.4:3128
 I: uname -a
-  Linux codethink04-arm64 6.1.0-28-cloud-arm64 #1 SMP Debian 6.1.119-1 (2024-11-22) aarch64 GNU/Linux
+  Linux i-capture-the-hostname 6.1.0-28-cloud-arm64 #1 SMP Debian 6.1.119-1 (2024-11-22) aarch64 GNU/Linux
 I: ls -l /bin
-  lrwxrwxrwx 1 root root 7 Nov 22 14:40 /bin -> usr/bin
-I: user script /srv/workspace/pbuilder/146680/tmp/hooks/D02_print_environment finished
+  lrwxrwxrwx 1 root root 7 Nov 22  2024 /bin -> usr/bin
+I: user script /srv/workspace/pbuilder/4056668/tmp/hooks/D02_print_environment finished
  -> Attempting to satisfy build-dependencies
  -> Creating pbuilder-satisfydepends-dummy package
 Package: pbuilder-satisfydepends-dummy
@@ -83,7 +112,7 @@
 Depends: debhelper (>= 9)
 dpkg-deb: building package 'pbuilder-satisfydepends-dummy' in '/tmp/satisfydepends-aptitude/pbuilder-satisfydepends-dummy.deb'.
 Selecting previously unselected package pbuilder-satisfydepends-dummy.
-(Reading database ... 20097 files and directories currently installed.)
+(Reading database ... 19971 files and directories currently installed.)
 Preparing to unpack .../pbuilder-satisfydepends-dummy.deb ...
 Unpacking pbuilder-satisfydepends-dummy (0.invalid.0) ...
 dpkg: pbuilder-satisfydepends-dummy: dependency problems, but configuring anyway as you requested:
@@ -100,11 +129,11 @@
 pbuilder-satisfydepends-dummy is already installed at the requested version (0.invalid.0)
 pbuilder-satisfydepends-dummy is already installed at the requested version (0.invalid.0)
 The following NEW packages will be installed:
-  autoconf{a} automake{a} autopoint{a} autotools-dev{a} bsdextrautils{a} debhelper{a} dh-autoreconf{a} dh-strip-nondeterminism{a} dwz{a} file{a} gettext{a} gettext-base{a} groff-base{a} intltool-debian{a} libarchive-zip-perl{a} libdebhelper-perl{a} libelf1t64{a} libfile-stripnondeterminism-perl{a} libicu72{a} libmagic-mgc{a} libmagic1t64{a} libpipeline1{a} libtool{a} libuchardet0{a} libxml2{a} m4{a} man-db{a} po-debconf{a} sensible-utils{a} 
+  autoconf{a} automake{a} autopoint{a} autotools-dev{a} bsdextrautils{a} debhelper{a} dh-autoreconf{a} dh-strip-nondeterminism{a} dwz{a} file{a} gettext{a} gettext-base{a} groff-base{a} intltool-debian{a} libarchive-zip-perl{a} libdebhelper-perl{a} libelf1t64{a} libfile-stripnondeterminism-perl{a} libicu72{a} libmagic-mgc{a} libmagic1t64{a} libpipeline1{a} libtool{a} libuchardet0{a} libunistring5{a} libxml2{a} m4{a} man-db{a} po-debconf{a} sensible-utils{a} 
 The following packages are RECOMMENDED but will NOT be installed:
   curl libarchive-cpio-perl libltdl-dev libmail-sendmail-perl lynx wget 
-0 packages upgraded, 29 newly installed, 0 to remove and 0 not upgraded.
-Need to get 19.4 MB of archives. After unpacking 77.7 MB will be used.
+0 packages upgraded, 30 newly installed, 0 to remove and 0 not upgraded.
+Need to get 19.9 MB of archives. After unpacking 79.9 MB will be used.
 Writing extended state information...
 Get: 1 http://deb.debian.org/debian trixie/main arm64 sensible-utils all 0.0.24 [24.8 kB]
 Get: 2 http://deb.debian.org/debian trixie/main arm64 libmagic-mgc arm64 1:5.45-3+b1 [314 kB]
@@ -129,16 +158,17 @@
 Get: 21 http://deb.debian.org/debian trixie/main arm64 dh-strip-nondeterminism all 1.14.0-1 [8448 B]
 Get: 22 http://deb.debian.org/debian trixie/main arm64 libelf1t64 arm64 0.192-4 [189 kB]
 Get: 23 http://deb.debian.org/debian trixie/main arm64 dwz arm64 0.15-1+b1 [102 kB]
-Get: 24 http://deb.debian.org/debian trixie/main arm64 libicu72 arm64 72.1-5+b1 [9239 kB]
-Get: 25 http://deb.debian.org/debian trixie/main arm64 libxml2 arm64 2.12.7+dfsg+really2.9.14-0.2+b1 [630 kB]
-Get: 26 http://deb.debian.org/debian trixie/main arm64 gettext arm64 0.22.5-3 [1532 kB]
-Get: 27 http://deb.debian.org/debian trixie/main arm64 intltool-debian all 0.35.0+20060710.6 [22.9 kB]
-Get: 28 http://deb.debian.org/debian trixie/main arm64 po-debconf all 1.0.21+nmu1 [248 kB]
-Get: 29 http://deb.debian.org/debian trixie/main arm64 debhelper all 13.23 [919 kB]
-Fetched 19.4 MB in 0s (69.7 MB/s)
+Get: 24 http://deb.debian.org/debian trixie/main arm64 libunistring5 arm64 1.3-1 [449 kB]
+Get: 25 http://deb.debian.org/debian trixie/main arm64 libicu72 arm64 72.1-5+b1 [9239 kB]
+Get: 26 http://deb.debian.org/debian trixie/main arm64 libxml2 arm64 2.12.7+dfsg+really2.9.14-0.2+b1 [630 kB]
+Get: 27 http://deb.debian.org/debian trixie/main arm64 gettext arm64 0.22.5-3 [1532 kB]
+Get: 28 http://deb.debian.org/debian trixie/main arm64 intltool-debian all 0.35.0+20060710.6 [22.9 kB]
+Get: 29 http://deb.debian.org/debian trixie/main arm64 po-debconf all 1.0.21+nmu1 [248 kB]
+Get: 30 http://deb.debian.org/debian trixie/main arm64 debhelper all 13.23 [919 kB]
+Fetched 19.9 MB in 0s (85.1 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 ... 20097 files and directories currently installed.)
+(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 ... 19971 files and directories currently installed.)
 Preparing to unpack .../00-sensible-utils_0.0.24_all.deb ...
 Unpacking sensible-utils (0.0.24) ...
 Selecting previously unselected package libmagic-mgc.
@@ -207,23 +237,26 @@
 Selecting previously unselected package dwz.
 Preparing to unpack .../22-dwz_0.15-1+b1_arm64.deb ...
 Unpacking dwz (0.15-1+b1) ...
+Selecting previously unselected package libunistring5:arm64.
+Preparing to unpack .../23-libunistring5_1.3-1_arm64.deb ...
+Unpacking libunistring5:arm64 (1.3-1) ...
 Selecting previously unselected package libicu72:arm64.
-Preparing to unpack .../23-libicu72_72.1-5+b1_arm64.deb ...
+Preparing to unpack .../24-libicu72_72.1-5+b1_arm64.deb ...
 Unpacking libicu72:arm64 (72.1-5+b1) ...
 Selecting previously unselected package libxml2:arm64.
-Preparing to unpack .../24-libxml2_2.12.7+dfsg+really2.9.14-0.2+b1_arm64.deb ...
+Preparing to unpack .../25-libxml2_2.12.7+dfsg+really2.9.14-0.2+b1_arm64.deb ...
 Unpacking libxml2:arm64 (2.12.7+dfsg+really2.9.14-0.2+b1) ...
 Selecting previously unselected package gettext.
-Preparing to unpack .../25-gettext_0.22.5-3_arm64.deb ...
+Preparing to unpack .../26-gettext_0.22.5-3_arm64.deb ...
 Unpacking gettext (0.22.5-3) ...
 Selecting previously unselected package intltool-debian.
-Preparing to unpack .../26-intltool-debian_0.35.0+20060710.6_all.deb ...
+Preparing to unpack .../27-intltool-debian_0.35.0+20060710.6_all.deb ...
 Unpacking intltool-debian (0.35.0+20060710.6) ...
 Selecting previously unselected package po-debconf.
-Preparing to unpack .../27-po-debconf_1.0.21+nmu1_all.deb ...
+Preparing to unpack .../28-po-debconf_1.0.21+nmu1_all.deb ...
 Unpacking po-debconf (1.0.21+nmu1) ...
 Selecting previously unselected package debhelper.
-Preparing to unpack .../28-debhelper_13.23_all.deb ...
+Preparing to unpack .../29-debhelper_13.23_all.deb ...
 Unpacking debhelper (13.23) ...
 Setting up libpipeline1:arm64 (1.5.8-1) ...
 Setting up libicu72:arm64 (72.1-5+b1) ...
@@ -237,6 +270,7 @@
 Setting up file (1:5.45-3+b1) ...
 Setting up libelf1t64:arm64 (0.192-4) ...
 Setting up autotools-dev (20220109.1) ...
+Setting up libunistring5:arm64 (1.3-1) ...
 Setting up autopoint (0.22.5-3) ...
 Setting up autoconf (2.72-3) ...
 Setting up dwz (0.15-1+b1) ...
@@ -271,7 +305,11 @@
 fakeroot is already the newest version (1.36.2-1).
 0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
 I: Building the package
-I: Running cd /build/reproducible-path/liblockfile-1.17/ && 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  > ../liblockfile_1.17-2_source.changes
+I: user script /srv/workspace/pbuilder/4056668/tmp/hooks/A99_set_merged_usr starting
+Not re-configuring usrmerge for trixie
+I: user script /srv/workspace/pbuilder/4056668/tmp/hooks/A99_set_merged_usr finished
+hostname: Name or service not known
+I: Running cd /build/reproducible-path/liblockfile-1.17/ && 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  > ../liblockfile_1.17-2_source.changes
 dpkg-buildpackage: info: source package liblockfile
 dpkg-buildpackage: info: source version 1.17-2
 dpkg-buildpackage: info: source distribution unstable
@@ -359,10 +397,10 @@
 		-c lockfile.c -o dlockfile.o
 gcc -Wl,-z,relro -fPIC -shared -Wl,-soname,liblockfile.so.1 \
 		-o liblockfile.so solockfile.o -lc
-gcc -Wl,-z,relro -o dotlockfile dotlockfile.o dlockfile.o
 ar rv liblockfile.a lockfile.o
 ar: creating liblockfile.a
 a - lockfile.o
+gcc -Wl,-z,relro -o dotlockfile dotlockfile.o dlockfile.o
 make[1]: Leaving directory '/build/reproducible-path/liblockfile-1.17'
    debian/rules override_dh_auto_test
 make[1]: Entering directory '/build/reproducible-path/liblockfile-1.17'
@@ -426,11 +464,11 @@
    dh_gencontrol
    dh_md5sums
    dh_builddeb
+dpkg-deb: building package 'liblockfile-bin-dbgsym' in '../liblockfile-bin-dbgsym_1.17-2_arm64.deb'.
+dpkg-deb: building package 'liblockfile-dev' in '../liblockfile-dev_1.17-2_arm64.deb'.
 dpkg-deb: building package 'liblockfile1-dbgsym' in '../liblockfile1-dbgsym_1.17-2_arm64.deb'.
 dpkg-deb: building package 'liblockfile1' in '../liblockfile1_1.17-2_arm64.deb'.
 dpkg-deb: building package 'liblockfile-bin' in '../liblockfile-bin_1.17-2_arm64.deb'.
-dpkg-deb: building package 'liblockfile-bin-dbgsym' in '../liblockfile-bin-dbgsym_1.17-2_arm64.deb'.
-dpkg-deb: building package 'liblockfile-dev' in '../liblockfile-dev_1.17-2_arm64.deb'.
  dpkg-genbuildinfo --build=binary -O../liblockfile_1.17-2_arm64.buildinfo
  dpkg-genchanges --build=binary -O../liblockfile_1.17-2_arm64.changes
 dpkg-genchanges: info: binary-only upload (no source code included)
@@ -439,12 +477,14 @@
 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/4056668/tmp/hooks/B01_cleanup starting
+I: user script /srv/workspace/pbuilder/4056668/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/146680 and its subdirectories
-I: Current time: Tue Jan  7 16:21:48 -12 2025
-I: pbuilder-time-stamp: 1736310108
+I: removing directory /srv/workspace/pbuilder/4056668 and its subdirectories
+I: Current time: Wed Feb 11 00:46:16 +14 2026
+I: pbuilder-time-stamp: 1770720376