Diff of the two buildlogs:

--
--- b1/build.log	2025-03-17 10:05:00.009671799 +0000
+++ b2/build.log	2025-03-17 10:06:25.517837831 +0000
@@ -1,6 +1,6 @@
 I: pbuilder: network access will be disabled during build
-I: Current time: Sun Apr 19 04:24:20 -12 2026
-I: pbuilder-time-stamp: 1776615860
+I: Current time: Tue Mar 18 00:05:03 +14 2025
+I: pbuilder-time-stamp: 1742205903
 I: Building the build Environment
 I: extracting base tarball [/var/cache/pbuilder/unstable-reproducible-base.tgz]
 I: copying local configuration
@@ -27,52 +27,84 @@
 dpkg-source: info: applying x32
 I: Not using root during the build.
 I: Installing the build-deps
-I: user script /srv/workspace/pbuilder/682098/tmp/hooks/D02_print_environment starting
+I: user script /srv/workspace/pbuilder/855369/tmp/hooks/D01_modify_environment starting
+debug: Running on codethink04-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 Mar 17 10:05 /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/855369/tmp/hooks/D01_modify_environment finished
+I: user script /srv/workspace/pbuilder/855369/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='unstable'
-  HOME='/root'
-  HOST_ARCH='arm64'
+  DIRSTACK=()
+  DISTRIBUTION=unstable
+  EUID=0
+  FUNCNAME=([0]="Echo" [1]="main")
+  GROUPS=()
+  HOME=/root
+  HOSTNAME=i-capture-the-hostname
+  HOSTTYPE=aarch64
+  HOST_ARCH=arm64
   IFS=' 	
   '
-  INVOCATION_ID='8e8492b9e426433db1ceb5f1d5f4f06e'
-  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='682098'
-  PS1='# '
-  PS2='> '
+  INVOCATION_ID=b28d2fe841a740858f4fff8f4d24ec70
+  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=855369
   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.qZRslDcd/pbuilderrc_UJN7 --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.qZRslDcd/b1 --logfile b1/build.log libselinux_3.8.1-1.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.qZRslDcd/pbuilderrc_fboA --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.qZRslDcd/b2 --logfile b2/build.log libselinux_3.8.1-1.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 codethink03-arm64 6.1.0-32-cloud-arm64 #1 SMP Debian 6.1.129-1 (2025-03-06) aarch64 GNU/Linux
+  Linux i-capture-the-hostname 6.1.0-32-cloud-arm64 #1 SMP Debian 6.1.129-1 (2025-03-06) aarch64 GNU/Linux
 I: ls -l /bin
-  lrwxrwxrwx 1 root root 7 Mar  4  2025 /bin -> usr/bin
-I: user script /srv/workspace/pbuilder/682098/tmp/hooks/D02_print_environment finished
+  lrwxrwxrwx 1 root root 7 Mar  4 11:20 /bin -> usr/bin
+I: user script /srv/workspace/pbuilder/855369/tmp/hooks/D02_print_environment finished
  -> Attempting to satisfy build-dependencies
  -> Creating pbuilder-satisfydepends-dummy package
 Package: pbuilder-satisfydepends-dummy
@@ -297,7 +329,7 @@
 Get: 166 http://deb.debian.org/debian unstable/main arm64 python3-wheel all 0.45.1-1 [56.7 kB]
 Get: 167 http://deb.debian.org/debian unstable/main arm64 python3-pip all 25.0+dfsg-1 [1454 kB]
 Get: 168 http://deb.debian.org/debian unstable/main arm64 swig arm64 4.3.0-1 [1406 kB]
-Fetched 61.9 MB in 1s (72.4 MB/s)
+Fetched 61.9 MB in 0s (179 MB/s)
 Preconfiguring packages ...
 Selecting previously unselected package libpython3.13-minimal:arm64.
 (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 ... 19898 files and directories currently installed.)
@@ -847,8 +879,8 @@
 Setting up tzdata (2025a-2) ...
 
 Current default time zone: 'Etc/UTC'
-Local time is now:      Sun Apr 19 16:25:30 UTC 2026.
-Universal Time is now:  Sun Apr 19 16:25:30 UTC 2026.
+Local time is now:      Mon Mar 17 10:05:26 UTC 2025.
+Universal Time is now:  Mon Mar 17 10:05:26 UTC 2025.
 Run 'dpkg-reconfigure tzdata' if you wish to change it.
 
 Setting up ruby-minitest (5.25.4-2) ...
@@ -1004,7 +1036,11 @@
 Building tag database...
  -> Finished parsing the build-deps
 I: Building the package
-I: Running cd /build/reproducible-path/libselinux-3.8.1/ && 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  > ../libselinux_3.8.1-1_source.changes
+I: user script /srv/workspace/pbuilder/855369/tmp/hooks/A99_set_merged_usr starting
+Not re-configuring usrmerge for unstable
+I: user script /srv/workspace/pbuilder/855369/tmp/hooks/A99_set_merged_usr finished
+hostname: Name or service not known
+I: Running cd /build/reproducible-path/libselinux-3.8.1/ && 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  > ../libselinux_3.8.1-1_source.changes
 dpkg-buildpackage: info: source package libselinux
 dpkg-buildpackage: info: source version 3.8.1-1
 dpkg-buildpackage: info: source distribution unstable
@@ -1023,9 +1059,9 @@
 make[3]: Leaving directory '/build/reproducible-path/libselinux-3.8.1/include'
 make[3]: Entering directory '/build/reproducible-path/libselinux-3.8.1/src'
 rm -f selinuxswig_python_wrap.lo _selinux.so audit2why.lo audit2why.so
+rm -f selinuxswig_ruby_wrap.lo  ruby_selinux.so
 true setup.py clean
 rm -rf build *~ \#* *pyc .#* selinux.egg-info/
-rm -f selinuxswig_ruby_wrap.lo  ruby_selinux.so
 rm -f libselinux.pc avc.o avc_internal.o avc_sidtab.o booleans.o callbacks.o canonicalize_context.o checkAccess.o check_context.o checkreqprot.o compute_av.o compute_create.o compute_member.o compute_relabel.o compute_user.o context.o deny_unknown.o disable.o enabled.o fgetfilecon.o freecon.o freeconary.o fsetfilecon.o get_context_list.o get_default_type.o get_initial_context.o getenforce.o getfilecon.o getpeercon.o init.o is_customizable_type.o label.o label_db.o label_file.o label_media.o label_support.o label_x.o lgetfilecon.o load_policy.o lsetfilecon.o mapping.o matchmediacon.o matchpathcon.o policyvers.o procattr.o query_user_context.o regex.o reject_unknown.o selinux_check_securetty_context.o selinux_config.o selinux_internal.o selinux_restorecon.o sestatus.o setenforce.o setexecfilecon.o setfilecon.o setrans_client.o seusers.o sha1.o stringrep.o validatetrans.o avc.lo avc_internal.lo avc_sidtab.lo booleans.lo callbacks.lo canonicalize_context.lo checkAccess.lo check_context.lo checkreqprot.lo compute_av.lo compute_create.lo compute_member.lo compute_relabel.lo compute_user.lo context.lo deny_unknown.lo disable.lo enabled.lo fgetfilecon.lo freecon.lo freeconary.lo fsetfilecon.lo get_context_list.lo get_default_type.lo get_initial_context.lo getenforce.lo getfilecon.lo getpeercon.lo init.lo is_customizable_type.lo label.lo label_db.lo label_file.lo label_media.lo label_support.lo label_x.lo lgetfilecon.lo load_policy.lo lsetfilecon.lo mapping.lo matchmediacon.lo matchpathcon.lo policyvers.lo procattr.lo query_user_context.lo regex.lo reject_unknown.lo selinux_check_securetty_context.lo selinux_config.lo selinux_internal.lo selinux_restorecon.lo sestatus.lo setenforce.lo setexecfilecon.lo setfilecon.lo setrans_client.lo seusers.lo sha1.lo stringrep.lo validatetrans.lo libselinux.a  libselinux.so.1 libselinux.so *.o *.lo *~
 rm -f selinuxswig_python_wrap.c selinuxswig_ruby_wrap.c selinuxswig_python_wrap.c selinuxswig_python_exception.i _selinux.so selinux.py
 make[3]: Leaving directory '/build/reproducible-path/libselinux-3.8.1/src'
@@ -1363,7 +1399,7 @@
 CFLAGS="-Wdate-time -D_FORTIFY_SOURCE=2 -g -O2 -Werror=implicit-function-declaration -ffile-prefix-map=/build/reproducible-path/libselinux-3.8.1=. -fstack-protector-strong -fstack-clash-protection -Wformat -Werror=format-security -mbranch-protection=standard -fno-semantic-interposition -Wdate-time -D_FORTIFY_SOURCE=2 -Wall -Wextra -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64 -I../include -D_GNU_SOURCE -DNO_ANDROID_BACKEND -DUSE_PCRE2 -DPCRE2_CODE_UNIT_WIDTH=8 -DHAVE_STRLCPY -DHAVE_REALLOCARRAY -Wno-error -Wno-unused-variable -Wno-unused-but-set-variable -Wno-unused-parameter -Wno-shadow -Wno-uninitialized -Wno-missing-prototypes -Wno-missing-declarations -Wno-deprecated-declarations" python3.13 setup.py build_ext
 running build_ext
 CFLAGS="-Wdate-time -D_FORTIFY_SOURCE=2 -g -O2 -Werror=implicit-function-declaration -ffile-prefix-map=/build/reproducible-path/libselinux-3.8.1=. -fstack-protector-strong -fstack-clash-protection -Wformat -Werror=format-security -mbranch-protection=standard -fno-semantic-interposition -Wdate-time -D_FORTIFY_SOURCE=2 -Wall -Wextra -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64 -I../include -D_GNU_SOURCE -DNO_ANDROID_BACKEND -DUSE_PCRE2 -DPCRE2_CODE_UNIT_WIDTH=8 -DHAVE_STRLCPY -DHAVE_REALLOCARRAY -Wno-error -Wno-unused-variable -Wno-unused-but-set-variable -Wno-unused-parameter -Wno-shadow -Wno-uninitialized -Wno-missing-prototypes -Wno-missing-declarations -Wno-deprecated-declarations" python3.13 -m pip install --prefix=/usr `test -n "/build/reproducible-path/libselinux-3.8.1/debian/tmp" && echo --root /build/reproducible-path/libselinux-3.8.1/debian/tmp --ignore-installed --no-deps`  .
-WARNING: The directory '/nonexistent/first-build/.cache/pip' or its parent directory is not owned or is not writable by the current user. The cache has been disabled. Check the permissions and owner of that directory. If executing pip with sudo, you should use sudo's -H flag.
+WARNING: The directory '/nonexistent/second-build/.cache/pip' or its parent directory is not owned or is not writable by the current user. The cache has been disabled. Check the permissions and owner of that directory. If executing pip with sudo, you should use sudo's -H flag.
 Processing /build/reproducible-path/libselinux-3.8.1/src
   Preparing metadata (setup.py): started
   Preparing metadata (setup.py): finished with status 'done'
@@ -1371,7 +1407,7 @@
   Building wheel for selinux (setup.py): started
   Building wheel for selinux (setup.py): finished with status 'done'
   Created wheel for selinux: filename=selinux-3.8.1-cp313-cp313-linux_aarch64.whl size=464514 sha256=4662dbd45775f0e8d8a4e508ad1bba5878d2f9f69a729ae052bcd5e51eb07262
-  Stored in directory: /tmp/pip-ephem-wheel-cache-s5uu7eu8/wheels/e3/2b/24/e674f68bb5d1f9403f0ce2298c80420d0b6f9589ff2f6e6fad
+  Stored in directory: /tmp/pip-ephem-wheel-cache-zjk9k2_m/wheels/e3/2b/24/e674f68bb5d1f9403f0ce2298c80420d0b6f9589ff2f6e6fad
 Successfully built selinux
 Installing collected packages: selinux
 Successfully installed selinux-3.8.1
@@ -1408,8 +1444,8 @@
    dh_fixperms
    dh_missing
    dh_dwz -a
-dwz: dwz: debian/python3-selinux/usr/lib/python3/dist-packages/selinux/_selinux.cpython-313-aarch64-linux-gnu.so: DWARF compression not beneficial - old size 329263 new size 335670
-debian/selinux-utils/usr/sbin/sefcontext_compile: DWARF compression not beneficial - old size 143217 new size 144769
+dwz: debian/python3-selinux/usr/lib/python3/dist-packages/selinux/_selinux.cpython-313-aarch64-linux-gnu.so: DWARF compression not beneficial - old size 329263 new size 335670
+dwz: debian/selinux-utils/usr/sbin/sefcontext_compile: DWARF compression not beneficial - old size 143217 new size 144769
    dh_strip -a
    debian/rules override_dh_makeshlibs
 make[1]: Entering directory '/build/reproducible-path/libselinux-3.8.1'
@@ -1449,15 +1485,15 @@
 make[1]: Leaving directory '/build/reproducible-path/libselinux-3.8.1'
    dh_md5sums
    dh_builddeb
-dpkg-deb: building package 'python3-selinux' in '../python3-selinux_3.8.1-1_arm64.deb'.
-dpkg-deb: building package 'libselinux1-dev' in '../libselinux1-dev_3.8.1-1_arm64.deb'.
+dpkg-deb: building package 'selinux-utils-dbgsym' in '../selinux-utils-dbgsym_3.8.1-1_arm64.deb'.
 dpkg-deb: building package 'libselinux1-dbgsym' in '../libselinux1-dbgsym_3.8.1-1_arm64.deb'.
+dpkg-deb: building package 'selinux-utils' in '../selinux-utils_3.8.1-1_arm64.deb'.
 dpkg-deb: building package 'ruby-selinux-dbgsym' in '../ruby-selinux-dbgsym_3.8.1-1_arm64.deb'.
 dpkg-deb: building package 'libselinux1' in '../libselinux1_3.8.1-1_arm64.deb'.
-dpkg-deb: building package 'selinux-utils-dbgsym' in '../selinux-utils-dbgsym_3.8.1-1_arm64.deb'.
-dpkg-deb: building package 'python3-selinux-dbgsym' in '../python3-selinux-dbgsym_3.8.1-1_arm64.deb'.
 dpkg-deb: building package 'ruby-selinux' in '../ruby-selinux_3.8.1-1_arm64.deb'.
-dpkg-deb: building package 'selinux-utils' in '../selinux-utils_3.8.1-1_arm64.deb'.
+dpkg-deb: building package 'libselinux1-dev' in '../libselinux1-dev_3.8.1-1_arm64.deb'.
+dpkg-deb: building package 'python3-selinux-dbgsym' in '../python3-selinux-dbgsym_3.8.1-1_arm64.deb'.
+dpkg-deb: building package 'python3-selinux' in '../python3-selinux_3.8.1-1_arm64.deb'.
 dpkg-deb: building package 'libselinux1-udeb' in 'debian/.debhelper/scratch-space/build-libselinux1-udeb/libselinux1-udeb_3.8.1-1_arm64.deb'.
 	Renaming libselinux1-udeb_3.8.1-1_arm64.deb to libselinux1-udeb_3.8.1-1_arm64.udeb
  dpkg-genbuildinfo --build=binary -O../libselinux_3.8.1-1_arm64.buildinfo
@@ -1467,12 +1503,14 @@
 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/855369/tmp/hooks/B01_cleanup starting
+I: user script /srv/workspace/pbuilder/855369/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/682098 and its subdirectories
-I: Current time: Sun Apr 19 04:27:58 -12 2026
-I: pbuilder-time-stamp: 1776616078
+I: removing directory /srv/workspace/pbuilder/855369 and its subdirectories
+I: Current time: Tue Mar 18 00:06:24 +14 2025
+I: pbuilder-time-stamp: 1742205984