Diff of the two buildlogs:

--
--- b1/build.log	2025-01-18 00:33:57.147325879 +0000
+++ b2/build.log	2025-01-18 00:40:46.232741837 +0000
@@ -1,6 +1,6 @@
 I: pbuilder: network access will be disabled during build
-I: Current time: Fri Jan 17 12:30:31 -12 2025
-I: pbuilder-time-stamp: 1737160231
+I: Current time: Sat Jan 18 14:34:08 +14 2025
+I: pbuilder-time-stamp: 1737160448
 I: Building the build Environment
 I: extracting base tarball [/var/cache/pbuilder/unstable-reproducible-base.tgz]
 I: copying local configuration
@@ -22,52 +22,84 @@
 dpkg-source: info: unpacking libmediaart_1.9.6-2.debian.tar.xz
 I: using fakeroot in build.
 I: Installing the build-deps
-I: user script /srv/workspace/pbuilder/9092/tmp/hooks/D02_print_environment starting
+I: user script /srv/workspace/pbuilder/19870/tmp/hooks/D01_modify_environment starting
+debug: Running on virt32b.
+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 Jan 18 00:34 /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/19870/tmp/hooks/D01_modify_environment finished
+I: user script /srv/workspace/pbuilder/19870/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]="37" [3]="1" [4]="release" [5]="arm-unknown-linux-gnueabihf")
+  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=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='7a3a1861b7a14733ad3e0e56d232ee02'
-  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='9092'
-  PS1='# '
-  PS2='> '
+  INVOCATION_ID=8ad75ce071c9453eb1f57ca76a1f4873
+  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=19870
   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.SdpHqntl/pbuilderrc_aof4 --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.SdpHqntl/b1 --logfile b1/build.log libmediaart_1.9.6-2.dsc'
-  SUDO_GID='114'
-  SUDO_UID='108'
-  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.SdpHqntl/pbuilderrc_6ALU --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.SdpHqntl/b2 --logfile b2/build.log libmediaart_1.9.6-2.dsc'
+  SUDO_GID=112
+  SUDO_UID=106
+  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 virt64a 6.1.0-30-arm64 #1 SMP Debian 6.1.124-1 (2025-01-12) aarch64 GNU/Linux
+  Linux i-capture-the-hostname 6.1.0-30-armmp-lpae #1 SMP Debian 6.1.124-1 (2025-01-12) armv7l GNU/Linux
 I: ls -l /bin
   lrwxrwxrwx 1 root root 7 Nov 22 14:40 /bin -> usr/bin
-I: user script /srv/workspace/pbuilder/9092/tmp/hooks/D02_print_environment finished
+I: user script /srv/workspace/pbuilder/19870/tmp/hooks/D02_print_environment finished
  -> Attempting to satisfy build-dependencies
  -> Creating pbuilder-satisfydepends-dummy package
 Package: pbuilder-satisfydepends-dummy
@@ -282,7 +314,7 @@
 Get: 163 http://deb.debian.org/debian unstable/main armhf valac-0.56-vapi all 0.56.17-1 [1078 kB]
 Get: 164 http://deb.debian.org/debian unstable/main armhf valac-bin armhf 0.56.17-1 [334 kB]
 Get: 165 http://deb.debian.org/debian unstable/main armhf valac armhf 0.56.17-1 [419 kB]
-Fetched 58.3 MB in 1s (58.8 MB/s)
+Fetched 58.3 MB in 9s (6439 kB/s)
 Preconfiguring packages ...
 Selecting previously unselected package libpython3.13-minimal:armhf.
 (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 ... 19564 files and directories currently installed.)
@@ -825,8 +857,8 @@
 Setting up tzdata (2024b-6) ...
 
 Current default time zone: 'Etc/UTC'
-Local time is now:      Sat Jan 18 00:32:14 UTC 2025.
-Universal Time is now:  Sat Jan 18 00:32:14 UTC 2025.
+Local time is now:      Sat Jan 18 00:37:37 UTC 2025.
+Universal Time is now:  Sat Jan 18 00:37:37 UTC 2025.
 Run 'dpkg-reconfigure tzdata' if you wish to change it.
 
 Setting up libsysprof-capture-4-dev:armhf (47.2-1) ...
@@ -978,7 +1010,11 @@
 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/libmediaart-1.9.6/ && 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  > ../libmediaart_1.9.6-2_source.changes
+I: user script /srv/workspace/pbuilder/19870/tmp/hooks/A99_set_merged_usr starting
+Not re-configuring usrmerge for unstable
+I: user script /srv/workspace/pbuilder/19870/tmp/hooks/A99_set_merged_usr finished
+hostname: Name or service not known
+I: Running cd /build/reproducible-path/libmediaart-1.9.6/ && 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  > ../libmediaart_1.9.6-2_source.changes
 dpkg-buildpackage: info: source package libmediaart
 dpkg-buildpackage: info: source version 1.9.6-2
 dpkg-buildpackage: info: source distribution unstable
@@ -1008,7 +1044,7 @@
 C compiler for the host machine: cc (gcc 14.2.0 "cc (Debian 14.2.0-14) 14.2.0")
 C linker for the host machine: cc ld.bfd 2.43.50.20250108
 Host machine cpu family: arm
-Host machine cpu: arm
+Host machine cpu: armv7l
 Found pkg-config: YES (/usr/bin/pkg-config) 1.8.1
 Run-time dependency gdk-pixbuf-2.0 found: YES 2.42.12
 Run-time dependency glib-2.0 found: YES 2.82.4
@@ -1062,7 +1098,7 @@
 Found ninja-1.12.1 at /usr/bin/ninja
 make[1]: Leaving directory '/build/reproducible-path/libmediaart-1.9.6'
    dh_auto_build
-	cd obj-arm-linux-gnueabihf && LC_ALL=C.UTF-8 ninja -j3 -v
+	cd obj-arm-linux-gnueabihf && LC_ALL=C.UTF-8 ninja -j4 -v
 [1/14] /usr/bin/glib-genmarshal --quiet --prefix media_art_marshal --output libmediaart/marshal.h --header ../libmediaart/marshal.list --pragma-once
 [2/14] /usr/bin/glib-genmarshal --quiet --prefix media_art_marshal --output libmediaart/marshal.c --body ../libmediaart/marshal.list --include-header marshal.h
 [3/14] cc -Ilibmediaart/libmediaart-2.0.so.0.906.0.p -Ilibmediaart -I../libmediaart -I. -I.. -I/usr/include/glib-2.0 -I/usr/lib/arm-linux-gnueabihf/glib-2.0/include -I/usr/include/sysprof-6 -I/usr/include/gio-unix-2.0 -I/usr/include/libmount -I/usr/include/blkid -I/usr/include/gdk-pixbuf-2.0 -I/usr/include/libpng16 -I/usr/include/arm-linux-gnueabihf -I/usr/include/webp -fdiagnostics-color=always -Wall -Winvalid-pch -g -O2 -Werror=implicit-function-declaration -ffile-prefix-map=/build/reproducible-path/libmediaart-1.9.6=. -fstack-protector-strong -fstack-clash-protection -Wformat -Werror=format-security -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64 -D_TIME_BITS=64 -Wdate-time -D_FORTIFY_SOURCE=2 -fPIC -pthread -DLIBMEDIAART_COMPILATION -fvisibility=hidden -MD -MQ libmediaart/libmediaart-2.0.so.0.906.0.p/meson-generated_.._marshal.c.o -MF libmediaart/libmediaart-2.0.so.0.906.0.p/meson-generated_.._marshal.c.o.d -o libmediaart/libmediaart-2.0.so.0.906.0.p/meson-generated_.._marshal.c.o -c libmediaart/marshal.c
@@ -1209,7 +1245,7 @@
 html/libmediaart-Cache.html:311: warning: no link for: "GObject" -> (<span class="type">GObject</span>).
 
    dh_auto_test
-	cd obj-arm-linux-gnueabihf && DEB_PYTHON_INSTALL_LAYOUT=deb LC_ALL=C.UTF-8 MESON_TESTTHREADS=3 meson test
+	cd obj-arm-linux-gnueabihf && DEB_PYTHON_INSTALL_LAYOUT=deb LC_ALL=C.UTF-8 MESON_TESTTHREADS=4 meson test
 ninja: Entering directory `/build/reproducible-path/libmediaart-1.9.6/obj-arm-linux-gnueabihf'
 [1/1] Generating gtkdoc docs/libmediaart-doc
 Building documentation for libmediaart
@@ -1233,8 +1269,8 @@
 html/libmediaart-Cache.html:138: warning: no link for: "g-utf8-validate" -> (<code class="function">g_utf8_validate()</code>).
 html/libmediaart-Cache.html:311: warning: no link for: "GObject" -> (<span class="type">GObject</span>).
 
-1/2 mediaart              OK              0.04s
-2/2 libmediaart-doc-check OK              0.17s
+1/2 mediaart              OK              0.09s
+2/2 libmediaart-doc-check OK              0.31s
 
 Ok:                 2   
 Expected Fail:      0   
@@ -1311,10 +1347,10 @@
    dh_md5sums
    dh_builddeb
 dpkg-deb: building package 'libmediaart-2.0-0' in '../libmediaart-2.0-0_1.9.6-2_armhf.deb'.
-dpkg-deb: building package 'libmediaart-2.0-dev' in '../libmediaart-2.0-dev_1.9.6-2_armhf.deb'.
 dpkg-deb: building package 'gir1.2-mediaart-2.0' in '../gir1.2-mediaart-2.0_1.9.6-2_armhf.deb'.
-dpkg-deb: building package 'libmediaart-2.0-0-dbgsym' in '../libmediaart-2.0-0-dbgsym_1.9.6-2_armhf.deb'.
+dpkg-deb: building package 'libmediaart-2.0-dev' in '../libmediaart-2.0-dev_1.9.6-2_armhf.deb'.
 dpkg-deb: building package 'libmediaart-doc' in '../libmediaart-doc_1.9.6-2_all.deb'.
+dpkg-deb: building package 'libmediaart-2.0-0-dbgsym' in '../libmediaart-2.0-0-dbgsym_1.9.6-2_armhf.deb'.
  dpkg-genbuildinfo --build=binary -O../libmediaart_1.9.6-2_armhf.buildinfo
  dpkg-genchanges --build=binary -O../libmediaart_1.9.6-2_armhf.changes
 dpkg-genchanges: info: binary-only upload (no source code included)
@@ -1322,12 +1358,14 @@
 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/19870/tmp/hooks/B01_cleanup starting
+I: user script /srv/workspace/pbuilder/19870/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/9092 and its subdirectories
-I: Current time: Fri Jan 17 12:33:52 -12 2025
-I: pbuilder-time-stamp: 1737160432
+I: removing directory /srv/workspace/pbuilder/19870 and its subdirectories
+I: Current time: Sat Jan 18 14:40:42 +14 2025
+I: pbuilder-time-stamp: 1737160842