Diff of the two buildlogs:

--
--- b1/build.log	2024-04-30 16:26:28.145758984 +0000
+++ b2/build.log	2024-04-30 16:27:24.527365051 +0000
@@ -1,6 +1,6 @@
 I: pbuilder: network access will be disabled during build
-I: Current time: Mon Jun  2 10:48:55 -12 2025
-I: pbuilder-time-stamp: 1748904535
+I: Current time: Wed May  1 06:26:30 +14 2024
+I: pbuilder-time-stamp: 1714494390
 I: Building the build Environment
 I: extracting base tarball [/var/cache/pbuilder/unstable-reproducible-base.tgz]
 I: copying local configuration
@@ -29,54 +29,86 @@
 dpkg-source: info: applying use-ldflags-with-fiptool-and-cert-create
 I: Not using root during the build.
 I: Installing the build-deps
-I: user script /srv/workspace/pbuilder/87281/tmp/hooks/D02_print_environment starting
+I: user script /srv/workspace/pbuilder/2961/tmp/hooks/D01_modify_environment starting
+debug: Running on ionos12-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 Apr 30 16:26 /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/2961/tmp/hooks/D01_modify_environment finished
+I: user script /srv/workspace/pbuilder/2961/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=22 '
-  DISTRIBUTION='unstable'
-  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=10 '
+  DIRSTACK=()
+  DISTRIBUTION=unstable
+  EUID=0
+  FUNCNAME=([0]="Echo" [1]="main")
+  GROUPS=()
+  HOME=/root
+  HOSTNAME=i-capture-the-hostname
+  HOSTTYPE=i686
+  HOST_ARCH=i386
   IFS=' 	
   '
-  INVOCATION_ID='9e05aa697e354c71bf5ab17a9fc8401d'
-  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='87281'
-  PS1='# '
-  PS2='> '
+  INVOCATION_ID=baa50dfef5124cc0a8dbf94fc269b7af
+  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=2961
   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.HfZql7ej/pbuilderrc_C707 --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.HfZql7ej/b1 --logfile b1/build.log arm-trusted-firmware_2.10.0+dfsg-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://213.165.73.152:3128'
+  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.HfZql7ej/pbuilderrc_zYEg --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.HfZql7ej/b2 --logfile b2/build.log arm-trusted-firmware_2.10.0+dfsg-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://46.16.76.132:3128
 I: uname -a
-  Linux ionos16-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 May 31 14:06 /bin -> usr/bin
-I: user script /srv/workspace/pbuilder/87281/tmp/hooks/D02_print_environment finished
+  lrwxrwxrwx 1 root root 7 Apr 27 07:42 /bin -> usr/bin
+I: user script /srv/workspace/pbuilder/2961/tmp/hooks/D02_print_environment finished
  -> Attempting to satisfy build-dependencies
  -> Creating pbuilder-satisfydepends-dummy package
 Package: pbuilder-satisfydepends-dummy
@@ -291,7 +323,11 @@
 Building tag database...
  -> Finished parsing the build-deps
 I: Building the package
-I: Running cd /build/reproducible-path/arm-trusted-firmware-2.10.0+dfsg/ && 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  > ../arm-trusted-firmware_2.10.0+dfsg-1_source.changes
+I: user script /srv/workspace/pbuilder/2961/tmp/hooks/A99_set_merged_usr starting
+Not re-configuring usrmerge for unstable
+I: user script /srv/workspace/pbuilder/2961/tmp/hooks/A99_set_merged_usr finished
+hostname: Name or service not known
+I: Running cd /build/reproducible-path/arm-trusted-firmware-2.10.0+dfsg/ && 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  > ../arm-trusted-firmware_2.10.0+dfsg-1_source.changes
 dpkg-buildpackage: info: source package arm-trusted-firmware
 dpkg-buildpackage: info: source version 2.10.0+dfsg-1
 dpkg-buildpackage: info: source distribution unstable
@@ -301,7 +337,7 @@
  debian/rules clean
 dh clean
    dh_auto_clean
-	make -j22 distclean
+	make -j10 distclean
 make[1]: Entering directory '/build/reproducible-path/arm-trusted-firmware-2.10.0+dfsg'
   REALCLEAN
 make[1]: Leaving directory '/build/reproducible-path/arm-trusted-firmware-2.10.0+dfsg'
@@ -326,7 +362,7 @@
    debian/rules override_dh_auto_build
 make[1]: Entering directory '/build/reproducible-path/arm-trusted-firmware-2.10.0+dfsg'
 dh_auto_build --sourcedir=tools/fiptool     -- DEBUG=1 V=1 HOSTCC=i686-linux-gnu-gcc HOSTCCFLAGS="-g -O2 -Werror=implicit-function-declaration -ffile-prefix-map=/build/reproducible-path/arm-trusted-firmware-2.10.0+dfsg=. -fstack-protector-strong -Wformat -Werror=format-security -Wdate-time -D_FORTIFY_SOURCE=2"
-	cd tools/fiptool && make -j22 "INSTALL=install --strip-program=true" DEBUG=1 V=1 HOSTCC=i686-linux-gnu-gcc "HOSTCCFLAGS=-g -O2 -Werror=implicit-function-declaration -ffile-prefix-map=/build/reproducible-path/arm-trusted-firmware-2.10.0+dfsg=. -fstack-protector-strong -Wformat -Werror=format-security -Wdate-time -D_FORTIFY_SOURCE=2"
+	cd tools/fiptool && make -j10 "INSTALL=install --strip-program=true" DEBUG=1 V=1 HOSTCC=i686-linux-gnu-gcc "HOSTCCFLAGS=-g -O2 -Werror=implicit-function-declaration -ffile-prefix-map=/build/reproducible-path/arm-trusted-firmware-2.10.0+dfsg=. -fstack-protector-strong -Wformat -Werror=format-security -Wdate-time -D_FORTIFY_SOURCE=2"
 make[2]: Entering directory '/build/reproducible-path/arm-trusted-firmware-2.10.0+dfsg/tools/fiptool'
 Selected OpenSSL version: 3.2.2-dev
   HOSTCC  fiptool.c
@@ -340,20 +376,20 @@
 
 make[2]: Leaving directory '/build/reproducible-path/arm-trusted-firmware-2.10.0+dfsg/tools/fiptool'
 dh_auto_build --sourcedir=tools/cert_create -- DEBUG=1 V=1 HOSTCC=i686-linux-gnu-gcc HOSTCCFLAGS="-g -O2 -Werror=implicit-function-declaration -ffile-prefix-map=/build/reproducible-path/arm-trusted-firmware-2.10.0+dfsg=. -fstack-protector-strong -Wformat -Werror=format-security -Wdate-time -D_FORTIFY_SOURCE=2 -std=c99 -DUSE_TBBR_DEFS=1"
-	cd tools/cert_create && make -j22 "INSTALL=install --strip-program=true" DEBUG=1 V=1 HOSTCC=i686-linux-gnu-gcc "HOSTCCFLAGS=-g -O2 -Werror=implicit-function-declaration -ffile-prefix-map=/build/reproducible-path/arm-trusted-firmware-2.10.0+dfsg=. -fstack-protector-strong -Wformat -Werror=format-security -Wdate-time -D_FORTIFY_SOURCE=2 -std=c99 -DUSE_TBBR_DEFS=1"
+	cd tools/cert_create && make -j10 "INSTALL=install --strip-program=true" DEBUG=1 V=1 HOSTCC=i686-linux-gnu-gcc "HOSTCCFLAGS=-g -O2 -Werror=implicit-function-declaration -ffile-prefix-map=/build/reproducible-path/arm-trusted-firmware-2.10.0+dfsg=. -fstack-protector-strong -Wformat -Werror=format-security -Wdate-time -D_FORTIFY_SOURCE=2 -std=c99 -DUSE_TBBR_DEFS=1"
 make[2]: Entering directory '/build/reproducible-path/arm-trusted-firmware-2.10.0+dfsg/tools/cert_create'
 Selected OpenSSL version: 3.2.2-dev
   HOSTCC  src/cert.c
 i686-linux-gnu-gcc -c -g -O2 -Werror=implicit-function-declaration -ffile-prefix-map=/build/reproducible-path/arm-trusted-firmware-2.10.0+dfsg=. -fstack-protector-strong -Wformat -Werror=format-security -Wdate-time -D_FORTIFY_SOURCE=2 -std=c99 -DUSE_TBBR_DEFS=1 -I ./include -I ../../include/tools_share -I /usr/include src/cert.c -o src/cert.o
   HOSTCC  src/cmd_opt.c
-i686-linux-gnu-gcc -c -g -O2 -Werror=implicit-function-declaration -ffile-prefix-map=/build/reproducible-path/arm-trusted-firmware-2.10.0+dfsg=. -fstack-protector-strong -Wformat -Werror=format-security -Wdate-time -D_FORTIFY_SOURCE=2 -std=c99 -DUSE_TBBR_DEFS=1 -I ./include -I ../../include/tools_share -I /usr/include src/cmd_opt.c -o src/cmd_opt.o
   HOSTCC  src/ext.c
+i686-linux-gnu-gcc -c -g -O2 -Werror=implicit-function-declaration -ffile-prefix-map=/build/reproducible-path/arm-trusted-firmware-2.10.0+dfsg=. -fstack-protector-strong -Wformat -Werror=format-security -Wdate-time -D_FORTIFY_SOURCE=2 -std=c99 -DUSE_TBBR_DEFS=1 -I ./include -I ../../include/tools_share -I /usr/include src/cmd_opt.c -o src/cmd_opt.o
 i686-linux-gnu-gcc -c -g -O2 -Werror=implicit-function-declaration -ffile-prefix-map=/build/reproducible-path/arm-trusted-firmware-2.10.0+dfsg=. -fstack-protector-strong -Wformat -Werror=format-security -Wdate-time -D_FORTIFY_SOURCE=2 -std=c99 -DUSE_TBBR_DEFS=1 -I ./include -I ../../include/tools_share -I /usr/include src/ext.c -o src/ext.o
   HOSTCC  src/key.c
-  HOSTCC  src/main.c
 i686-linux-gnu-gcc -c -g -O2 -Werror=implicit-function-declaration -ffile-prefix-map=/build/reproducible-path/arm-trusted-firmware-2.10.0+dfsg=. -fstack-protector-strong -Wformat -Werror=format-security -Wdate-time -D_FORTIFY_SOURCE=2 -std=c99 -DUSE_TBBR_DEFS=1 -I ./include -I ../../include/tools_share -I /usr/include src/key.c -o src/key.o
-i686-linux-gnu-gcc -c -g -O2 -Werror=implicit-function-declaration -ffile-prefix-map=/build/reproducible-path/arm-trusted-firmware-2.10.0+dfsg=. -fstack-protector-strong -Wformat -Werror=format-security -Wdate-time -D_FORTIFY_SOURCE=2 -std=c99 -DUSE_TBBR_DEFS=1 -I ./include -I ../../include/tools_share -I /usr/include src/main.c -o src/main.o
+  HOSTCC  src/main.c
   HOSTCC  src/sha.c
+i686-linux-gnu-gcc -c -g -O2 -Werror=implicit-function-declaration -ffile-prefix-map=/build/reproducible-path/arm-trusted-firmware-2.10.0+dfsg=. -fstack-protector-strong -Wformat -Werror=format-security -Wdate-time -D_FORTIFY_SOURCE=2 -std=c99 -DUSE_TBBR_DEFS=1 -I ./include -I ../../include/tools_share -I /usr/include src/main.c -o src/main.o
 i686-linux-gnu-gcc -c -g -O2 -Werror=implicit-function-declaration -ffile-prefix-map=/build/reproducible-path/arm-trusted-firmware-2.10.0+dfsg=. -fstack-protector-strong -Wformat -Werror=format-security -Wdate-time -D_FORTIFY_SOURCE=2 -std=c99 -DUSE_TBBR_DEFS=1 -I ./include -I ../../include/tools_share -I /usr/include src/sha.c -o src/sha.o
   HOSTCC  src/tbbr/tbb_cert.c
 i686-linux-gnu-gcc -c -g -O2 -Werror=implicit-function-declaration -ffile-prefix-map=/build/reproducible-path/arm-trusted-firmware-2.10.0+dfsg=. -fstack-protector-strong -Wformat -Werror=format-security -Wdate-time -D_FORTIFY_SOURCE=2 -std=c99 -DUSE_TBBR_DEFS=1 -I ./include -I ../../include/tools_share -I /usr/include src/tbbr/tbb_cert.c -o src/tbbr/tbb_cert.o
@@ -435,7 +471,7 @@
 make[2]: Leaving directory '/build/reproducible-path/arm-trusted-firmware-2.10.0+dfsg/tools/cert_create'
 make[1]: Leaving directory '/build/reproducible-path/arm-trusted-firmware-2.10.0+dfsg'
    dh_auto_test
-	rm -fr -- /tmp/dh-xdg-rundir-x9OERoPG
+	rm -fr -- /tmp/dh-xdg-rundir-bOztLVdy
    create-stamp debian/debhelper-build-stamp
    dh_prep
 	rm -f -- debian/arm-trusted-firmware-tools.substvars
@@ -525,8 +561,8 @@
    dh_builddeb
 	dpkg-deb --root-owner-group --build debian/arm-trusted-firmware-tools ..
 	dpkg-deb --root-owner-group --build debian/.debhelper/arm-trusted-firmware-tools/dbgsym-root ..
-dpkg-deb: building package 'arm-trusted-firmware-tools-dbgsym' in '../arm-trusted-firmware-tools-dbgsym_2.10.0+dfsg-1_i386.deb'.
 dpkg-deb: building package 'arm-trusted-firmware-tools' in '../arm-trusted-firmware-tools_2.10.0+dfsg-1_i386.deb'.
+dpkg-deb: building package 'arm-trusted-firmware-tools-dbgsym' in '../arm-trusted-firmware-tools-dbgsym_2.10.0+dfsg-1_i386.deb'.
  dpkg-genbuildinfo --build=binary -O../arm-trusted-firmware_2.10.0+dfsg-1_i386.buildinfo
  dpkg-genchanges --build=binary -O../arm-trusted-firmware_2.10.0+dfsg-1_i386.changes
 dpkg-genchanges: info: binary-only upload (no source code included)
@@ -534,12 +570,14 @@
 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/2961/tmp/hooks/B01_cleanup starting
+I: user script /srv/workspace/pbuilder/2961/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/87281 and its subdirectories
-I: Current time: Mon Jun  2 10:49:27 -12 2025
-I: pbuilder-time-stamp: 1748904567
+I: removing directory /srv/workspace/pbuilder/2961 and its subdirectories
+I: Current time: Wed May  1 06:27:23 +14 2024
+I: pbuilder-time-stamp: 1714494443