Diff of the two buildlogs:

--
--- b1/build.log	2025-01-20 11:19:34.377328981 +0000
+++ b2/build.log	2025-01-20 11:20:38.158455672 +0000
@@ -1,6 +1,6 @@
 I: pbuilder: network access will be disabled during build
-I: Current time: Sun Jan 19 23:17:18 -12 2025
-I: pbuilder-time-stamp: 1737371838
+I: Current time: Mon Feb 23 07:42:36 +14 2026
+I: pbuilder-time-stamp: 1771782156
 I: Building the build Environment
 I: extracting base tarball [/var/cache/pbuilder/trixie-reproducible-base.tgz]
 I: copying local configuration
@@ -26,52 +26,84 @@
 dpkg-source: info: applying 1000-appstream-metainfo.patch
 I: using fakeroot in build.
 I: Installing the build-deps
-I: user script /srv/workspace/pbuilder/894310/tmp/hooks/D02_print_environment starting
+I: user script /srv/workspace/pbuilder/1800375/tmp/hooks/D01_modify_environment starting
+debug: Running on codethink01-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 22 17:42 /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/1800375/tmp/hooks/D01_modify_environment finished
+I: user script /srv/workspace/pbuilder/1800375/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='8ef6234e3d2c44b59988652d67079c26'
-  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='894310'
-  PS1='# '
-  PS2='> '
+  INVOCATION_ID=8f82492998c44915bff1fe569001fefc
+  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=1800375
   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.2N5FBBgl/pbuilderrc_Io3C --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.2N5FBBgl/b1 --logfile b1/build.log edac-utils_0.18+git16-g8fdc1d4-2.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.2N5FBBgl/pbuilderrc_8O7t --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.2N5FBBgl/b2 --logfile b2/build.log edac-utils_0.18+git16-g8fdc1d4-2.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 6.1.0-30-cloud-arm64 #1 SMP Debian 6.1.124-1 (2025-01-12) aarch64 GNU/Linux
+  Linux i-capture-the-hostname 6.1.0-30-cloud-arm64 #1 SMP Debian 6.1.124-1 (2025-01-12) 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/894310/tmp/hooks/D02_print_environment finished
+  lrwxrwxrwx 1 root root 7 Nov 22  2024 /bin -> usr/bin
+I: user script /srv/workspace/pbuilder/1800375/tmp/hooks/D02_print_environment finished
  -> Attempting to satisfy build-dependencies
  -> Creating pbuilder-satisfydepends-dummy package
 Package: pbuilder-satisfydepends-dummy
@@ -172,7 +204,7 @@
 Get: 57 http://deb.debian.org/debian trixie/main arm64 debhelper all 13.23 [919 kB]
 Get: 58 http://deb.debian.org/debian trixie/main arm64 libsysfs2 arm64 2.1.1-6+b1 [22.9 kB]
 Get: 59 http://deb.debian.org/debian trixie/main arm64 libsysfs-dev arm64 2.1.1-6+b1 [40.4 kB]
-Fetched 26.8 MB in 0s (63.2 MB/s)
+Fetched 26.8 MB in 0s (153 MB/s)
 Preconfiguring packages ...
 Selecting previously unselected package libpython3.12-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 ... 19970 files and directories currently installed.)
@@ -384,8 +416,8 @@
 Setting up tzdata (2024b-6) ...
 
 Current default time zone: 'Etc/UTC'
-Local time is now:      Mon Jan 20 11:17:54 UTC 2025.
-Universal Time is now:  Mon Jan 20 11:17:54 UTC 2025.
+Local time is now:      Sun Feb 22 17:42:54 UTC 2026.
+Universal Time is now:  Sun Feb 22 17:42:54 UTC 2026.
 Run 'dpkg-reconfigure tzdata' if you wish to change it.
 
 Setting up autotools-dev (20220109.1) ...
@@ -442,7 +474,11 @@
 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/edac-utils-0.18+git16-g8fdc1d4/ && 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  > ../edac-utils_0.18+git16-g8fdc1d4-2_source.changes
+I: user script /srv/workspace/pbuilder/1800375/tmp/hooks/A99_set_merged_usr starting
+Not re-configuring usrmerge for trixie
+I: user script /srv/workspace/pbuilder/1800375/tmp/hooks/A99_set_merged_usr finished
+hostname: Name or service not known
+I: Running cd /build/reproducible-path/edac-utils-0.18+git16-g8fdc1d4/ && 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  > ../edac-utils_0.18+git16-g8fdc1d4-2_source.changes
 dpkg-buildpackage: info: source package edac-utils
 dpkg-buildpackage: info: source version 0.18+git16-g8fdc1d4-2
 dpkg-buildpackage: info: source distribution unstable
@@ -613,10 +649,10 @@
 make[3]: Entering directory '/build/reproducible-path/edac-utils-0.18+git16-g8fdc1d4/src'
 Making all in lib
 make[4]: Entering directory '/build/reproducible-path/edac-utils-0.18+git16-g8fdc1d4/src/lib'
-/bin/bash ../../libtool  --tag=CC   --mode=compile gcc -DHAVE_CONFIG_H -I. -I../..   -Wdate-time -D_FORTIFY_SOURCE=2  -g -O2 -Werror=implicit-function-declaration -ffile-prefix-map=/build/reproducible-path/edac-utils-0.18+git16-g8fdc1d4=. -fstack-protector-strong -fstack-clash-protection -Wformat -Werror=format-security -mbranch-protection=standard -c -o libedac.lo libedac.c
+/bin/sh ../../libtool  --tag=CC   --mode=compile gcc -DHAVE_CONFIG_H -I. -I../..   -Wdate-time -D_FORTIFY_SOURCE=2  -g -O2 -Werror=implicit-function-declaration -ffile-prefix-map=/build/reproducible-path/edac-utils-0.18+git16-g8fdc1d4=. -fstack-protector-strong -fstack-clash-protection -Wformat -Werror=format-security -mbranch-protection=standard -c -o libedac.lo libedac.c
 libtool: compile:  gcc -DHAVE_CONFIG_H -I. -I../.. -Wdate-time -D_FORTIFY_SOURCE=2 -g -O2 -Werror=implicit-function-declaration -ffile-prefix-map=/build/reproducible-path/edac-utils-0.18+git16-g8fdc1d4=. -fstack-protector-strong -fstack-clash-protection -Wformat -Werror=format-security -mbranch-protection=standard -c libedac.c  -fPIC -DPIC -o .libs/libedac.o
 libtool: compile:  gcc -DHAVE_CONFIG_H -I. -I../.. -Wdate-time -D_FORTIFY_SOURCE=2 -g -O2 -Werror=implicit-function-declaration -ffile-prefix-map=/build/reproducible-path/edac-utils-0.18+git16-g8fdc1d4=. -fstack-protector-strong -fstack-clash-protection -Wformat -Werror=format-security -mbranch-protection=standard -c libedac.c -o libedac.o >/dev/null 2>&1
-/bin/bash ../../libtool  --tag=CC   --mode=link gcc  -g -O2 -Werror=implicit-function-declaration -ffile-prefix-map=/build/reproducible-path/edac-utils-0.18+git16-g8fdc1d4=. -fstack-protector-strong -fstack-clash-protection -Wformat -Werror=format-security -mbranch-protection=standard -export-symbols-regex "^edac_.*" -version-info 2:1:1 -Wl,-z,relro -o libedac.la -rpath /usr/lib libedac.lo -lsysfs 
+/bin/sh ../../libtool  --tag=CC   --mode=link gcc  -g -O2 -Werror=implicit-function-declaration -ffile-prefix-map=/build/reproducible-path/edac-utils-0.18+git16-g8fdc1d4=. -fstack-protector-strong -fstack-clash-protection -Wformat -Werror=format-security -mbranch-protection=standard -export-symbols-regex "^edac_.*" -version-info 2:1:1 -Wl,-z,relro -o libedac.la -rpath /usr/lib libedac.lo -lsysfs 
 libtool: link: /usr/bin/nm -B  .libs/libedac.o   | /usr/bin/sed -n -e 's/^.*[	 ]\([ABCDGIRSTW][ABCDGIRSTW]*\)[	 ][	 ]*\([_A-Za-z][_A-Za-z0-9]*\)$/\1 \2 \2/p' | /usr/bin/sed '/ __gnu_lto/d' | /usr/bin/sed 's/.* //' | sort | uniq > .libs/libedac.exp
 libtool: link: /usr/bin/grep -E -e "^edac_.*" ".libs/libedac.exp" > ".libs/libedac.expT"
 libtool: link: mv -f ".libs/libedac.expT" ".libs/libedac.exp"
@@ -654,7 +690,7 @@
 split.c:57:29: note: did you mean to dereference the pointer?
    57 |     while (**str != '\0' && strchr(sep, **str) != '\0')
       |                             ^
-/bin/bash ../../libtool  --tag=CC   --mode=link gcc  -g -O2 -Werror=implicit-function-declaration -ffile-prefix-map=/build/reproducible-path/edac-utils-0.18+git16-g8fdc1d4=. -fstack-protector-strong -fstack-clash-protection -Wformat -Werror=format-security -mbranch-protection=standard  -Wl,-z,relro -o edac-util edac-util.o list.o split.o ../../src/lib/libedac.la 
+/bin/sh ../../libtool  --tag=CC   --mode=link gcc  -g -O2 -Werror=implicit-function-declaration -ffile-prefix-map=/build/reproducible-path/edac-utils-0.18+git16-g8fdc1d4=. -fstack-protector-strong -fstack-clash-protection -Wformat -Werror=format-security -mbranch-protection=standard  -Wl,-z,relro -o edac-util edac-util.o list.o split.o ../../src/lib/libedac.la 
 libtool: link: gcc -g -O2 -Werror=implicit-function-declaration -ffile-prefix-map=/build/reproducible-path/edac-utils-0.18+git16-g8fdc1d4=. -fstack-protector-strong -fstack-clash-protection -Wformat -Werror=format-security -mbranch-protection=standard -Wl,-z -Wl,relro -o .libs/edac-util edac-util.o list.o split.o  ../../src/lib/.libs/libedac.so
 make[4]: Leaving directory '/build/reproducible-path/edac-utils-0.18+git16-g8fdc1d4/src/util'
 Making all in etc
@@ -690,7 +726,7 @@
 make[3]: Entering directory '/build/reproducible-path/edac-utils-0.18+git16-g8fdc1d4/src/lib'
 make[4]: Entering directory '/build/reproducible-path/edac-utils-0.18+git16-g8fdc1d4/src/lib'
  /usr/bin/mkdir -p '/build/reproducible-path/edac-utils-0.18+git16-g8fdc1d4/debian/tmp//usr/lib'
- /bin/bash ../../libtool   --mode=install /usr/bin/install -c   libedac.la '/build/reproducible-path/edac-utils-0.18+git16-g8fdc1d4/debian/tmp//usr/lib'
+ /bin/sh ../../libtool   --mode=install /usr/bin/install -c   libedac.la '/build/reproducible-path/edac-utils-0.18+git16-g8fdc1d4/debian/tmp//usr/lib'
 libtool: install: /usr/bin/install -c .libs/libedac.so.1.1.1 /build/reproducible-path/edac-utils-0.18+git16-g8fdc1d4/debian/tmp//usr/lib/libedac.so.1.1.1
 libtool: install: (cd /build/reproducible-path/edac-utils-0.18+git16-g8fdc1d4/debian/tmp//usr/lib && { ln -s -f libedac.so.1.1.1 libedac.so.1 || { rm -f libedac.so.1 && ln -s libedac.so.1.1.1 libedac.so.1; }; })
 libtool: install: (cd /build/reproducible-path/edac-utils-0.18+git16-g8fdc1d4/debian/tmp//usr/lib && { ln -s -f libedac.so.1.1.1 libedac.so || { rm -f libedac.so && ln -s libedac.so.1.1.1 libedac.so; }; })
@@ -709,7 +745,7 @@
 make[3]: Entering directory '/build/reproducible-path/edac-utils-0.18+git16-g8fdc1d4/src/util'
 make[4]: Entering directory '/build/reproducible-path/edac-utils-0.18+git16-g8fdc1d4/src/util'
  /usr/bin/mkdir -p '/build/reproducible-path/edac-utils-0.18+git16-g8fdc1d4/debian/tmp//usr/bin'
-  /bin/bash ../../libtool   --mode=install /usr/bin/install -c edac-util '/build/reproducible-path/edac-utils-0.18+git16-g8fdc1d4/debian/tmp//usr/bin'
+  /bin/sh ../../libtool   --mode=install /usr/bin/install -c edac-util '/build/reproducible-path/edac-utils-0.18+git16-g8fdc1d4/debian/tmp//usr/bin'
 libtool: warning: '../../src/lib/libedac.la' has not been installed in '/usr/lib'
 libtool: install: /usr/bin/install -c .libs/edac-util /build/reproducible-path/edac-utils-0.18+git16-g8fdc1d4/debian/tmp//usr/bin/edac-util
  /usr/bin/mkdir -p '/build/reproducible-path/edac-utils-0.18+git16-g8fdc1d4/debian/tmp//usr/sbin'
@@ -748,7 +784,6 @@
 make[1]: Leaving directory '/build/reproducible-path/edac-utils-0.18+git16-g8fdc1d4'
 touch debian/stamp-makefile-install
 Adding cdbs dependencies to debian/edac-utils.substvars
-libfakeroot internal error: payload not recognized!
 dh_installdirs -pedac-utils \
 	
 cp debian/tmp/etc/init.d/edac debian/edac-utils.edac.init
@@ -926,12 +961,14 @@
 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/1800375/tmp/hooks/B01_cleanup starting
+I: user script /srv/workspace/pbuilder/1800375/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/894310 and its subdirectories
-I: Current time: Sun Jan 19 23:19:33 -12 2025
-I: pbuilder-time-stamp: 1737371973
+I: removing directory /srv/workspace/pbuilder/1800375 and its subdirectories
+I: Current time: Mon Feb 23 07:43:36 +14 2026
+I: pbuilder-time-stamp: 1771782216