Diff of the two buildlogs:

--
--- b1/build.log	2024-04-24 10:35:39.236913206 +0000
+++ b2/build.log	2024-04-24 10:38:34.045474547 +0000
@@ -1,6 +1,6 @@
 I: pbuilder: network access will be disabled during build
-I: Current time: Tue Apr 23 22:30:04 -12 2024
-I: pbuilder-time-stamp: 1713954604
+I: Current time: Thu Apr 25 00:35:49 +14 2024
+I: pbuilder-time-stamp: 1713954949
 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 010_update-pt-BR.patch
 I: Not using root during the build.
 I: Installing the build-deps
-I: user script /srv/workspace/pbuilder/9733/tmp/hooks/D02_print_environment starting
+I: user script /srv/workspace/pbuilder/21375/tmp/hooks/D01_modify_environment starting
+debug: Running on virt32z.
+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 24 10:36 /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/21375/tmp/hooks/D01_modify_environment finished
+I: user script /srv/workspace/pbuilder/21375/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='armhf'
-  DEBIAN_FRONTEND='noninteractive'
-  DEB_BUILD_OPTIONS='buildinfo=+all reproducible=+all parallel=3 '
-  DISTRIBUTION='unstable'
-  HOME='/root'
-  HOST_ARCH='armhf'
+  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]="arm-unknown-linux-gnueabihf")
+  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=armhf
+  DEBIAN_FRONTEND=noninteractive
+  DEB_BUILD_OPTIONS='buildinfo=+all reproducible=+all parallel=4 '
+  DIRSTACK=()
+  DISTRIBUTION=unstable
+  EUID=0
+  FUNCNAME=([0]="Echo" [1]="main")
+  GROUPS=()
+  HOME=/root
+  HOSTNAME=i-capture-the-hostname
+  HOSTTYPE=arm
+  HOST_ARCH=armhf
   IFS=' 	
   '
-  INVOCATION_ID='ea0cbc65f584462a8884ed841dd83db1'
-  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='9733'
-  PS1='# '
-  PS2='> '
+  INVOCATION_ID=8732d9c47c484c2783b88070e23123dc
+  LANG=C
+  LANGUAGE=it_CH:it
+  LC_ALL=C
+  MACHTYPE=arm-unknown-linux-gnueabihf
+  MAIL=/var/mail/root
+  OPTERR=1
+  OPTIND=1
+  OSTYPE=linux-gnueabihf
+  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=21375
   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.1nO8S7Hq/pbuilderrc_MJLm --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.1nO8S7Hq/b1 --logfile b1/build.log obs-3d-effect_0.1.0-1.dsc'
-  SUDO_GID='113'
-  SUDO_UID='107'
-  SUDO_USER='jenkins'
-  TERM='unknown'
-  TZ='/usr/share/zoneinfo/Etc/GMT+12'
-  USER='root'
-  _='/usr/bin/systemd-run'
-  http_proxy='http://10.0.0.15:3142/'
+  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.1nO8S7Hq/pbuilderrc_lQo7 --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.1nO8S7Hq/b2 --logfile b2/build.log obs-3d-effect_0.1.0-1.dsc'
+  SUDO_GID=110
+  SUDO_UID=103
+  SUDO_USER=jenkins
+  TERM=unknown
+  TZ=/usr/share/zoneinfo/Etc/GMT-14
+  UID=0
+  USER=root
+  _='I: set'
+  http_proxy=http://10.0.0.15:3142/
 I: uname -a
-  Linux virt64b 6.1.0-20-arm64 #1 SMP Debian 6.1.85-1 (2024-04-11) aarch64 GNU/Linux
+  Linux i-capture-the-hostname 6.1.0-20-armmp-lpae #1 SMP Debian 6.1.85-1 (2024-04-11) armv7l GNU/Linux
 I: ls -l /bin
-  lrwxrwxrwx 1 root root 7 Apr 21 08:04 /bin -> usr/bin
-I: user script /srv/workspace/pbuilder/9733/tmp/hooks/D02_print_environment finished
+  lrwxrwxrwx 1 root root 7 Apr 24 07:43 /bin -> usr/bin
+I: user script /srv/workspace/pbuilder/21375/tmp/hooks/D02_print_environment finished
  -> Attempting to satisfy build-dependencies
  -> Creating pbuilder-satisfydepends-dummy package
 Package: pbuilder-satisfydepends-dummy
@@ -307,7 +339,7 @@
 Get: 193 http://deb.debian.org/debian unstable/main armhf libxcb1-dev armhf 1.17.0-1 [179 kB]
 Get: 194 http://deb.debian.org/debian unstable/main armhf libx11-dev armhf 2:1.8.7-1 [816 kB]
 Get: 195 http://deb.debian.org/debian unstable/main armhf libobs-dev armhf 30.0.2+dfsg-3 [106 kB]
-Fetched 79.5 MB in 5s (17.5 MB/s)
+Fetched 79.5 MB in 4s (18.7 MB/s)
 debconf: delaying package configuration, since apt-utils is not installed
 Selecting previously unselected package tzdata.
 (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 ... 19442 files and directories currently installed.)
@@ -961,8 +993,8 @@
 Setting up tzdata (2024a-3) ...
 
 Current default time zone: 'Etc/UTC'
-Local time is now:      Wed Apr 24 10:33:56 UTC 2024.
-Universal Time is now:  Wed Apr 24 10:33:56 UTC 2024.
+Local time is now:      Wed Apr 24 10:37:54 UTC 2024.
+Universal Time is now:  Wed Apr 24 10:37:54 UTC 2024.
 Run 'dpkg-reconfigure tzdata' if you wish to change it.
 
 Setting up libpgm-5.3-0t64:armhf (5.3.128~dfsg-2.1) ...
@@ -1114,7 +1146,11 @@
 Building tag database...
  -> Finished parsing the build-deps
 I: Building the package
-I: Running cd /build/reproducible-path/obs-3d-effect-0.1.0/ && 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  > ../obs-3d-effect_0.1.0-1_source.changes
+I: user script /srv/workspace/pbuilder/21375/tmp/hooks/A99_set_merged_usr starting
+Not re-configuring usrmerge for unstable
+I: user script /srv/workspace/pbuilder/21375/tmp/hooks/A99_set_merged_usr finished
+hostname: Name or service not known
+I: Running cd /build/reproducible-path/obs-3d-effect-0.1.0/ && 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  > ../obs-3d-effect_0.1.0-1_source.changes
 dpkg-buildpackage: info: source package obs-3d-effect
 dpkg-buildpackage: info: source version 0.1.0-1
 dpkg-buildpackage: info: source distribution unstable
@@ -1130,7 +1166,7 @@
    dh_autoreconf
    debian/rules execute_before_dh_auto_configure
 make[1]: Entering directory '/build/reproducible-path/obs-3d-effect-0.1.0'
-if [ "virt64b" = "canopus" ]; then \
+if [ "i-capture-the-hostname" = "canopus" ]; then \
     LINESUS=17; \
     LINESPT=17; \
     if [ "$LINESUS" != "$LINESPT" ]; then \
@@ -1161,11 +1197,7 @@
 -- Performing Test CMAKE_HAVE_LIBC_PTHREAD
 -- Performing Test CMAKE_HAVE_LIBC_PTHREAD - Success
 -- Found Threads: TRUE  
--- Performing Test C_COMPILER_SUPPORTS_OPENMP_SIMD
--- Performing Test C_COMPILER_SUPPORTS_OPENMP_SIMD - Success
--- Performing Test CXX_COMPILER_SUPPORTS_OPENMP_SIMD
--- Performing Test CXX_COMPILER_SUPPORTS_OPENMP_SIMD - Success
--- Configuring done (6.6s)
+-- Configuring done (2.0s)
 -- Generating done (0.0s)
 CMake Warning:
   Manually-specified variables were not used by the project:
@@ -1178,7 +1210,7 @@
 -- Build files have been written to: /build/reproducible-path/obs-3d-effect-0.1.0/obj-arm-linux-gnueabihf
 make[1]: Leaving directory '/build/reproducible-path/obs-3d-effect-0.1.0'
    dh_auto_build
-	cd obj-arm-linux-gnueabihf && make -j3 "INSTALL=install --strip-program=true" VERBOSE=1
+	cd obj-arm-linux-gnueabihf && make -j4 "INSTALL=install --strip-program=true" VERBOSE=1
 make[1]: Entering directory '/build/reproducible-path/obs-3d-effect-0.1.0/obj-arm-linux-gnueabihf'
 /usr/bin/cmake -S/build/reproducible-path/obs-3d-effect-0.1.0 -B/build/reproducible-path/obs-3d-effect-0.1.0/obj-arm-linux-gnueabihf --check-build-system CMakeFiles/Makefile.cmake 0
 /usr/bin/cmake -E cmake_progress_start /build/reproducible-path/obs-3d-effect-0.1.0/obj-arm-linux-gnueabihf/CMakeFiles /build/reproducible-path/obs-3d-effect-0.1.0/obj-arm-linux-gnueabihf//CMakeFiles/progress.marks
@@ -1201,9 +1233,9 @@
 -- Installing: /build/reproducible-path/obs-3d-effect-0.1.0/obj-arm-linux-gnueabihf/rundir/None/share/obs/obs-plugins/3d-effect/data
 -- Installing: /build/reproducible-path/obs-3d-effect-0.1.0/obj-arm-linux-gnueabihf/rundir/None/share/obs/obs-plugins/3d-effect/data/locale
 -- Installing: /build/reproducible-path/obs-3d-effect-0.1.0/obj-arm-linux-gnueabihf/rundir/None/share/obs/obs-plugins/3d-effect/data/locale/es-ES.ini
--- Installing: /build/reproducible-path/obs-3d-effect-0.1.0/obj-arm-linux-gnueabihf/rundir/None/share/obs/obs-plugins/3d-effect/data/locale/en-US.ini
--- Installing: /build/reproducible-path/obs-3d-effect-0.1.0/obj-arm-linux-gnueabihf/rundir/None/share/obs/obs-plugins/3d-effect/data/locale/de-DE.ini
 -- Installing: /build/reproducible-path/obs-3d-effect-0.1.0/obj-arm-linux-gnueabihf/rundir/None/share/obs/obs-plugins/3d-effect/data/locale/pt-BR.ini
+-- Installing: /build/reproducible-path/obs-3d-effect-0.1.0/obj-arm-linux-gnueabihf/rundir/None/share/obs/obs-plugins/3d-effect/data/locale/de-DE.ini
+-- Installing: /build/reproducible-path/obs-3d-effect-0.1.0/obj-arm-linux-gnueabihf/rundir/None/share/obs/obs-plugins/3d-effect/data/locale/en-US.ini
 make[3]: Leaving directory '/build/reproducible-path/obs-3d-effect-0.1.0/obj-arm-linux-gnueabihf'
 [100%] Built target 3d-effect
 make[2]: Leaving directory '/build/reproducible-path/obs-3d-effect-0.1.0/obj-arm-linux-gnueabihf'
@@ -1213,7 +1245,7 @@
    create-stamp debian/debhelper-build-stamp
    dh_prep
    dh_auto_install --destdir=debian/obs-3d-effect/
-	cd obj-arm-linux-gnueabihf && make -j3 install DESTDIR=/build/reproducible-path/obs-3d-effect-0.1.0/debian/obs-3d-effect AM_UPDATE_INFO_DIR=no "INSTALL=install --strip-program=true"
+	cd obj-arm-linux-gnueabihf && make -j4 install DESTDIR=/build/reproducible-path/obs-3d-effect-0.1.0/debian/obs-3d-effect AM_UPDATE_INFO_DIR=no "INSTALL=install --strip-program=true"
 make[1]: Entering directory '/build/reproducible-path/obs-3d-effect-0.1.0/obj-arm-linux-gnueabihf'
 /usr/bin/cmake -S/build/reproducible-path/obs-3d-effect-0.1.0 -B/build/reproducible-path/obs-3d-effect-0.1.0/obj-arm-linux-gnueabihf --check-build-system CMakeFiles/Makefile.cmake 0
 make  -f CMakeFiles/Makefile2 preinstall
@@ -1226,16 +1258,16 @@
 -- Installing: /build/reproducible-path/obs-3d-effect-0.1.0/debian/obs-3d-effect/usr/lib/arm-linux-gnueabihf/obs-plugins/3d-effect.so
 -- Installing: /build/reproducible-path/obs-3d-effect-0.1.0/debian/obs-3d-effect/usr/share/obs/obs-plugins/3d-effect/locale
 -- Installing: /build/reproducible-path/obs-3d-effect-0.1.0/debian/obs-3d-effect/usr/share/obs/obs-plugins/3d-effect/locale/es-ES.ini
--- Installing: /build/reproducible-path/obs-3d-effect-0.1.0/debian/obs-3d-effect/usr/share/obs/obs-plugins/3d-effect/locale/en-US.ini
--- Installing: /build/reproducible-path/obs-3d-effect-0.1.0/debian/obs-3d-effect/usr/share/obs/obs-plugins/3d-effect/locale/de-DE.ini
 -- Installing: /build/reproducible-path/obs-3d-effect-0.1.0/debian/obs-3d-effect/usr/share/obs/obs-plugins/3d-effect/locale/pt-BR.ini
+-- Installing: /build/reproducible-path/obs-3d-effect-0.1.0/debian/obs-3d-effect/usr/share/obs/obs-plugins/3d-effect/locale/de-DE.ini
+-- Installing: /build/reproducible-path/obs-3d-effect-0.1.0/debian/obs-3d-effect/usr/share/obs/obs-plugins/3d-effect/locale/en-US.ini
 -- Up-to-date: /build/reproducible-path/obs-3d-effect-0.1.0/debian/obs-3d-effect/usr/lib/arm-linux-gnueabihf/obs-plugins/3d-effect.so
 -- Up-to-date: /build/reproducible-path/obs-3d-effect-0.1.0/debian/obs-3d-effect/usr/share/obs/obs-plugins/3d-effect
 -- Up-to-date: /build/reproducible-path/obs-3d-effect-0.1.0/debian/obs-3d-effect/usr/share/obs/obs-plugins/3d-effect/locale
 -- Up-to-date: /build/reproducible-path/obs-3d-effect-0.1.0/debian/obs-3d-effect/usr/share/obs/obs-plugins/3d-effect/locale/es-ES.ini
--- Up-to-date: /build/reproducible-path/obs-3d-effect-0.1.0/debian/obs-3d-effect/usr/share/obs/obs-plugins/3d-effect/locale/en-US.ini
--- Up-to-date: /build/reproducible-path/obs-3d-effect-0.1.0/debian/obs-3d-effect/usr/share/obs/obs-plugins/3d-effect/locale/de-DE.ini
 -- Up-to-date: /build/reproducible-path/obs-3d-effect-0.1.0/debian/obs-3d-effect/usr/share/obs/obs-plugins/3d-effect/locale/pt-BR.ini
+-- Up-to-date: /build/reproducible-path/obs-3d-effect-0.1.0/debian/obs-3d-effect/usr/share/obs/obs-plugins/3d-effect/locale/de-DE.ini
+-- Up-to-date: /build/reproducible-path/obs-3d-effect-0.1.0/debian/obs-3d-effect/usr/share/obs/obs-plugins/3d-effect/locale/en-US.ini
 make[1]: Leaving directory '/build/reproducible-path/obs-3d-effect-0.1.0/obj-arm-linux-gnueabihf'
    debian/rules execute_after_dh_install-arch
 make[1]: Entering directory '/build/reproducible-path/obs-3d-effect-0.1.0'
@@ -1268,12 +1300,14 @@
 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/21375/tmp/hooks/B01_cleanup starting
+I: user script /srv/workspace/pbuilder/21375/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/9733 and its subdirectories
-I: Current time: Tue Apr 23 22:35:34 -12 2024
-I: pbuilder-time-stamp: 1713954934
+I: removing directory /srv/workspace/pbuilder/21375 and its subdirectories
+I: Current time: Thu Apr 25 00:38:28 +14 2024
+I: pbuilder-time-stamp: 1713955108