Diff of the two buildlogs:

--
--- b1/build.log	2025-01-27 03:55:47.330317739 +0000
+++ b2/build.log	2025-01-27 04:16:35.205994771 +0000
@@ -1,6 +1,6 @@
 I: pbuilder: network access will be disabled during build
-I: Current time: Sun Jan 26 15:46:35 -12 2025
-I: pbuilder-time-stamp: 1737949595
+I: Current time: Mon Jan 27 17:55:58 +14 2025
+I: pbuilder-time-stamp: 1737950158
 I: Building the build Environment
 I: extracting base tarball [/var/cache/pbuilder/unstable-reproducible-base.tgz]
 I: copying local configuration
@@ -24,52 +24,84 @@
 dpkg-source: info: applying 00_ftbfs_error.diff
 I: Not using root during the build.
 I: Installing the build-deps
-I: user script /srv/workspace/pbuilder/18039/tmp/hooks/D02_print_environment starting
+I: user script /srv/workspace/pbuilder/10447/tmp/hooks/D01_modify_environment starting
+debug: Running on cbxi4a.
+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 27 03:56 /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/10447/tmp/hooks/D01_modify_environment finished
+I: user script /srv/workspace/pbuilder/10447/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='c5e04b1de43446eda9260df617bec6e1'
-  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='18039'
-  PS1='# '
-  PS2='> '
+  INVOCATION_ID=7679b597b35f42669ae78142d9dafe2c
+  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=10447
   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.ZN5tHOlr/pbuilderrc_J4bC --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.ZN5tHOlr/b1 --logfile b1/build.log glosstex_0.4.dfsg.1-5.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.ZN5tHOlr/pbuilderrc_aAzL --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.ZN5tHOlr/b2 --logfile b2/build.log glosstex_0.4.dfsg.1-5.dsc'
+  SUDO_GID=113
+  SUDO_UID=107
+  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 virt64c 6.1.0-30-arm64 #1 SMP Debian 6.1.124-1 (2025-01-12) aarch64 GNU/Linux
+  Linux i-capture-the-hostname 6.1.0-23-armmp #1 SMP Debian 6.1.99-1 (2024-07-15) 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/18039/tmp/hooks/D02_print_environment finished
+I: user script /srv/workspace/pbuilder/10447/tmp/hooks/D02_print_environment finished
  -> Attempting to satisfy build-dependencies
  -> Creating pbuilder-satisfydepends-dummy package
 Package: pbuilder-satisfydepends-dummy
@@ -229,7 +261,7 @@
 Get: 118 http://deb.debian.org/debian unstable/main armhf texlive-base all 2024.20250114-1 [22.8 MB]
 Get: 119 http://deb.debian.org/debian unstable/main armhf texlive-latex-base all 2024.20250114-1 [1282 kB]
 Get: 120 http://deb.debian.org/debian unstable/main armhf texlive-latex-recommended all 2024.20250114-1 [8760 kB]
-Fetched 93.4 MB in 2s (43.2 MB/s)
+Fetched 93.4 MB in 7s (13.0 MB/s)
 Preconfiguring packages ...
 Selecting previously unselected package poppler-data.
 (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 ... 19557 files and directories currently installed.)
@@ -741,7 +773,11 @@
 Building tag database...
  -> Finished parsing the build-deps
 I: Building the package
-I: Running cd /build/reproducible-path/glosstex-0.4.dfsg.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  > ../glosstex_0.4.dfsg.1-5_source.changes
+I: user script /srv/workspace/pbuilder/10447/tmp/hooks/A99_set_merged_usr starting
+Not re-configuring usrmerge for unstable
+I: user script /srv/workspace/pbuilder/10447/tmp/hooks/A99_set_merged_usr finished
+hostname: Name or service not known
+I: Running cd /build/reproducible-path/glosstex-0.4.dfsg.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  > ../glosstex_0.4.dfsg.1-5_source.changes
 dpkg-buildpackage: info: source package glosstex
 dpkg-buildpackage: info: source version 0.4.dfsg.1-5
 dpkg-buildpackage: info: source distribution unstable
@@ -767,7 +803,7 @@
    debian/rules override_dh_auto_build
 make[1]: Entering directory '/build/reproducible-path/glosstex-0.4.dfsg.1'
 dh_auto_build
-	make -j3 "INSTALL=install --strip-program=true"
+	make -j4 "INSTALL=install --strip-program=true"
 make[2]: Entering directory '/build/reproducible-path/glosstex-0.4.dfsg.1'
 cc -g -O2 -Werror=implicit-function-declaration -ffile-prefix-map=/build/reproducible-path/glosstex-0.4.dfsg.1=. -fstack-protector-strong -fstack-clash-protection -Wformat -Werror=format-security -Wall -ansi -pedantic -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64 -D_TIME_BITS=64 -Wdate-time -D_FORTIFY_SOURCE=2  -c -o database.o database.c
 cc -g -O2 -Werror=implicit-function-declaration -ffile-prefix-map=/build/reproducible-path/glosstex-0.4.dfsg.1=. -fstack-protector-strong -fstack-clash-protection -Wformat -Werror=format-security -Wall -ansi -pedantic -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64 -D_TIME_BITS=64 -Wdate-time -D_FORTIFY_SOURCE=2  -c -o error.o error.c
@@ -779,8 +815,7 @@
 This is pdfTeX, Version 3.141592653-2.6-1.40.26 (TeX Live 2025/dev/Debian) (preloaded format=latex)
  restricted \write18 enabled.
 entering extended mode
-(./glosstex.insTEXINPUTS=.: latex glosstex.ins
-
+(./glosstex.ins
 LaTeX2e <2024-11-01> patch level 1
 L3 programming layer <2024-12-25>
 (/usr/share/texlive/texmf-dist/tex/latex/base/docstrip.tex
@@ -796,87 +831,10 @@
 * No Configuration file found, using default settings. *
 ********************************************************
 
-(./glosstex.insThis is pdfTeX, Version 3.141592653-2.6-1.40.26 (TeX Live 2025/dev/Debian) (preloaded format=latex)
- restricted \write18 enabled.
-TEXINPUTS=.: latex glosstex.ins
-This is pdfTeX, Version 3.141592653-2.6-1.40.26 (TeX Live 2025/dev/Debian) (preloaded format=latex)
- restricted \write18 enabled.
-
-
-Generating file(s) ./glosstex.sty ./glosstex.std ./glosstex.ist ./glosstex.gdf 
-./glosstex.cfg 
-
-Processing file glosstex.dtx (package) -> glosstex.sty
-                             (std) -> glosstex.std
-                             (ist) -> glosstex.ist
-                             (gdf) -> glosstex.gdf
-                             (cfg) -> glosstex.cfg
-File glosstex.dtx ended by \endinput.
-Lines  processed: 1768
-Comments removed: 1092
-Comments  passed: 16
-Codelines passed: 646
-
-**********************************************************************
-*
-* You will find the documentation in glosstex.dvi. You may remake it
-* by running latex on glosstex.dtx or invoking `make doc'
-*
-* To finish the installation you have to move the following
-* files (according to TDS):
-*
-* glosstex.sty to texmf/tex/latex/glosstex
-* glosstex.std to texmf/tex/latex/glosstex
-* glosstex.ist to texmf/makeindex
-*
-* and your own .gdf-files to texmf/glosstex.
-*
-* The files `glosstex.gdf' and `glosstex.cfg` are meant just for
-* this document, so you won't want to install them, normally.
-*
-* Happy TeXing!
-**********************************************************************
-) ) )
-No pages of output.
-Transcript written on glosstex.log.
-TEXINPUTS=.: latex glosstex.ins
+(./glosstex.insTEXINPUTS=.: latex glosstex.ins
 This is pdfTeX, Version 3.141592653-2.6-1.40.26 (TeX Live 2025/dev/Debian) (preloaded format=latex)
  restricted \write18 enabled.
-entering extended mode
-(./glosstex.ins
-LaTeX2e <2024-11-01> patch level 1
-L3 programming layer <2024-12-25>
-(/usr/share/texlive/texmf-dist/tex/latex/base/docstrip.tex
-Utility: `docstrip' v2.6b <2022-09-03>
-English documentation    <2024-02-08>
-
-**********************************************************
-* This program converts documented macro-files into fast *
-* loadable files by stripping off (nearly) all comments! *
-**********************************************************
 
-********************************************************
-* No Configuration file found, using default settings. *
-********************************************************
-
-(./glosstex.insentering extended mode
-(./glosstex.ins
-LaTeX2e <2024-11-01> patch level 1
-L3 programming layer <2024-12-25>
-(/usr/share/texlive/texmf-dist/tex/latex/base/docstrip.tex
-Utility: `docstrip' v2.6b <2022-09-03>
-English documentation    <2024-02-08>
-
-**********************************************************
-* This program converts documented macro-files into fast *
-* loadable files by stripping off (nearly) all comments! *
-**********************************************************
-
-********************************************************
-* No Configuration file found, using default settings. *
-********************************************************
-
-(./glosstex.ins
 
 Generating file(s) ./glosstex.sty ./glosstex.std ./glosstex.ist ./glosstex.gdf 
 ./glosstex.cfg 
@@ -970,44 +928,6 @@
 ) ) )
 No pages of output.
 Transcript written on glosstex.log.
-
-
-Generating file(s) ./glosstex.sty ./glosstex.std ./glosstex.ist ./glosstex.gdf 
-./glosstex.cfg 
-
-Processing file glosstex.dtx (package) -> glosstex.sty
-                             (std) -> glosstex.std
-                             (ist) -> glosstex.ist
-                             (gdf) -> glosstex.gdf
-                             (cfg) -> glosstex.cfg
-File glosstex.dtx ended by \endinput.
-Lines  processed: 1768
-Comments removed: 1092
-Comments  passed: 16
-Codelines passed: 646
-
-**********************************************************************
-*
-* You will find the documentation in glosstex.dvi. You may remake it
-* by running latex on glosstex.dtx or invoking `make doc'
-*
-* To finish the installation you have to move the following
-* files (according to TDS):
-*
-* glosstex.sty to texmf/tex/latex/glosstex
-* glosstex.std to texmf/tex/latex/glosstex
-* glosstex.ist to texmf/makeindex
-*
-* and your own .gdf-files to texmf/glosstex.
-*
-* The files `glosstex.gdf' and `glosstex.cfg` are meant just for
-* this document, so you won't want to install them, normally.
-*
-* Happy TeXing!
-**********************************************************************
-) ) )
-No pages of output.
-Transcript written on glosstex.log.
 make[2]: Leaving directory '/build/reproducible-path/glosstex-0.4.dfsg.1'
 /usr/bin/make doc
 make[2]: Entering directory '/build/reproducible-path/glosstex-0.4.dfsg.1'
@@ -2185,12 +2105,14 @@
 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/10447/tmp/hooks/B01_cleanup starting
+I: user script /srv/workspace/pbuilder/10447/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/18039 and its subdirectories
-I: Current time: Sun Jan 26 15:55:43 -12 2025
-I: pbuilder-time-stamp: 1737950143
+I: removing directory /srv/workspace/pbuilder/10447 and its subdirectories
+I: Current time: Mon Jan 27 18:16:30 +14 2025
+I: pbuilder-time-stamp: 1737951390