Diff of the two buildlogs:

--
--- b1/build.log	2025-01-23 12:13:43.925610638 +0000
+++ b2/build.log	2025-01-23 12:15:36.104526026 +0000
@@ -1,6 +1,6 @@
 I: pbuilder: network access will be disabled during build
-I: Current time: Wed Feb 25 06:35:27 -12 2026
-I: pbuilder-time-stamp: 1772044527
+I: Current time: Fri Jan 24 02:13:46 +14 2025
+I: pbuilder-time-stamp: 1737634426
 I: Building the build Environment
 I: extracting base tarball [/var/cache/pbuilder/unstable-reproducible-base.tgz]
 I: copying local configuration
@@ -27,51 +27,83 @@
 dpkg-source: info: applying bug1013649.patch
 I: Not using root during the build.
 I: Installing the build-deps
-I: user script /srv/workspace/pbuilder/377478/tmp/hooks/D02_print_environment starting
+I: user script /srv/workspace/pbuilder/695826/tmp/hooks/D01_modify_environment starting
+debug: Running on infom01-amd64.
+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 23 12:13 /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/695826/tmp/hooks/D01_modify_environment finished
+I: user script /srv/workspace/pbuilder/695826/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='amd64'
-  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]="x86_64-pc-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=amd64
+  DEBIAN_FRONTEND=noninteractive
   DEB_BUILD_OPTIONS='buildinfo=+all reproducible=+all parallel=12 '
-  DISTRIBUTION='unstable'
-  HOME='/root'
-  HOST_ARCH='amd64'
+  DIRSTACK=()
+  DISTRIBUTION=unstable
+  EUID=0
+  FUNCNAME=([0]="Echo" [1]="main")
+  GROUPS=()
+  HOME=/root
+  HOSTNAME=i-capture-the-hostname
+  HOSTTYPE=x86_64
+  HOST_ARCH=amd64
   IFS=' 	
   '
-  INVOCATION_ID='98869571755743f090c40c57ebdafd4d'
-  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='377478'
-  PS1='# '
-  PS2='> '
+  INVOCATION_ID=0014c5fbd60f4535a972c7e74ee20f86
+  LANG=C
+  LANGUAGE=et_EE:et
+  LC_ALL=C
+  MACHTYPE=x86_64-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=695826
   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.GCpj3cdA/pbuilderrc_DNNd --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.GCpj3cdA/b1 --logfile b1/build.log libjpeg_0.0~git20241105.c719010-1.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'
+  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.GCpj3cdA/pbuilderrc_VZph --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.GCpj3cdA/b2 --logfile b2/build.log libjpeg_0.0~git20241105.c719010-1.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'
 I: uname -a
-  Linux infom02-amd64 6.12.9+bpo-amd64 #1 SMP PREEMPT_DYNAMIC Debian 6.12.9-1~bpo12+1 (2025-01-19) x86_64 GNU/Linux
+  Linux i-capture-the-hostname 6.1.0-30-cloud-amd64 #1 SMP PREEMPT_DYNAMIC Debian 6.1.124-1 (2025-01-12) x86_64 GNU/Linux
 I: ls -l /bin
-  lrwxrwxrwx 1 root root 7 Nov 22  2024 /bin -> usr/bin
-I: user script /srv/workspace/pbuilder/377478/tmp/hooks/D02_print_environment finished
+  lrwxrwxrwx 1 root root 7 Nov 22 14:40 /bin -> usr/bin
+I: user script /srv/workspace/pbuilder/695826/tmp/hooks/D02_print_environment finished
  -> Attempting to satisfy build-dependencies
  -> Creating pbuilder-satisfydepends-dummy package
 Package: pbuilder-satisfydepends-dummy
@@ -141,7 +173,7 @@
 Get: 30 http://deb.debian.org/debian unstable/main amd64 po-debconf all 1.0.21+nmu1 [248 kB]
 Get: 31 http://deb.debian.org/debian unstable/main amd64 debhelper all 13.24.1 [920 kB]
 Get: 32 http://deb.debian.org/debian unstable/main amd64 help2man amd64 1.49.3 [198 kB]
-Fetched 20.7 MB in 0s (67.7 MB/s)
+Fetched 20.7 MB in 2s (12.3 MB/s)
 Preconfiguring packages ...
 Selecting previously unselected package liblocale-gettext-perl.
 (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 ... 19832 files and directories currently installed.)
@@ -284,7 +316,11 @@
 Building tag database...
  -> Finished parsing the build-deps
 I: Building the package
-I: Running cd /build/reproducible-path/libjpeg-0.0~git20241105.c719010/ && 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  > ../libjpeg_0.0~git20241105.c719010-1_source.changes
+I: user script /srv/workspace/pbuilder/695826/tmp/hooks/A99_set_merged_usr starting
+Not re-configuring usrmerge for unstable
+I: user script /srv/workspace/pbuilder/695826/tmp/hooks/A99_set_merged_usr finished
+hostname: Name or service not known
+I: Running cd /build/reproducible-path/libjpeg-0.0~git20241105.c719010/ && 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  > ../libjpeg_0.0~git20241105.c719010-1_source.changes
 dpkg-buildpackage: info: source package libjpeg
 dpkg-buildpackage: info: source version 0.0~git20241105.c719010-1
 dpkg-buildpackage: info: source distribution unstable
@@ -703,157 +739,157 @@
 Using g++ -O3 -DDEBUG_LEVEL=0 -DCHECK_LEVEL=0 -funroll-loops -fstrict-aliasing -Wno-redundant-decls -ffast-math   -Wall -W -Wunused -Wpointer-arith -pedantic -Wcast-qual -Wwrite-strings -Wno-long-long -Wredundant-decls -Wnon-virtual-dtor -Woverloaded-virtual -Wsign-promo -fno-exceptions -Wno-char-subscripts -Wno-shift-negative-value -I ..  -DUSE_AUTOCONF -mfpmath=387   -Wimplicit-fallthrough=1   
 Compiling cmd/main.cpp
 Compiling cmd/bitmaphook.cpp
-Compiling cmd/iohelpers.cpp
 Compiling cmd/filehook.cpp
+Compiling cmd/iohelpers.cpp
 Compiling cmd/tmo.cpp
 Compiling cmd/defaulttmoc.cpp
 Compiling std/stdlib.cpp
 Compiling cmd/encodea.cpp
-Compiling io/bytestream.cpp
 Compiling std/stdio.cpp
+Compiling io/bytestream.cpp
 Compiling std/math.cpp
 Compiling tools/debug.cpp
-Compiling interface/hooks.cpp
-Compiling tools/environment.cpp
 Compiling io/randomaccessstream.cpp
-Compiling io/iostream.cpp
-Compiling interface/parameters.cpp
 Compiling std/stdarg.cpp
-Compiling interface/tagitem.cpp
-Compiling interface/types.cpp
-Compiling cmd/encodeb.cpp
+Compiling tools/environment.cpp
 Compiling std/setjmp.cpp
-Compiling io/bitstream.cpp
+Compiling cmd/encodeb.cpp
+Compiling std/errno.cpp
 Compiling tools/traits.cpp
-Compiling interface/jpgtypes.cpp
+Compiling std/string.cpp
+Compiling interface/hooks.cpp
 Compiling cmd/encodec.cpp
 Compiling cmd/reconstruct.cpp
-Compiling std/errno.cpp
-Compiling tools/rectangle.cpp
-Compiling std/string.cpp
-Compiling interface/imagebitmap.cpp
-Compiling io/memorystream.cpp
 Compiling std/ctype.cpp
+Compiling tools/rectangle.cpp
+Compiling interface/parameters.cpp
+Compiling std/stddef.cpp
+Compiling std/unistd.cpp
+Compiling io/iostream.cpp
 Compiling tools/line.cpp
+Compiling interface/tagitem.cpp
+Compiling std/assert.cpp
 Compiling tools/priorityqueue.cpp
 Compiling tools/numerics.cpp
+Compiling tools/checksum.cpp
+Compiling io/bitstream.cpp
+Compiling interface/types.cpp
+Compiling interface/jpgtypes.cpp
+Compiling interface/imagebitmap.cpp
+ar: creating libcmd.a
+Compiling io/memorystream.cpp
+Compiling interface/bitmaphook.cpp
+ar: creating libtools.a
+Compiling interface/jpeg.cpp
 Compiling io/decoderstream.cpp
+ar: creating libstd.a
+Compiling marker/quantization.cpp
 Compiling io/staticstream.cpp
-Compiling coding/decodertemplate.cpp
 Compiling codestream/encoder.cpp
-Compiling std/stddef.cpp
-Compiling marker/quantization.cpp
-Compiling coding/huffmantemplate.cpp
-Compiling marker/quantizationtable.cpp
-Compiling std/unistd.cpp
-Compiling interface/bitmaphook.cpp
-Compiling interface/jpeg.cpp
 Compiling io/checksumadapter.cpp
-ar: creating libcmd.a
-Compiling dct/dct.cpp
+Compiling marker/quantizationtable.cpp
+Compiling marker/huffmantable.cpp
+Compiling marker/frame.cpp
+Compiling marker/component.cpp
 Compiling codestream/decoder.cpp
 Compiling codestream/tables.cpp
-Compiling boxes/box.cpp
-Compiling tools/checksum.cpp
 ar: creating libio.a
+ar: creating libinterface.a
+Compiling boxes/box.cpp
+Compiling codestream/image.cpp
+Compiling dct/dct.cpp
+Compiling marker/scan.cpp
 Compiling dct/idct.cpp
+Compiling coding/decodertemplate.cpp
 Compiling boxes/superbox.cpp
+Compiling coding/huffmantemplate.cpp
+Compiling marker/adobemarker.cpp
+Compiling marker/jfifmarker.cpp
+Compiling dct/liftingdct.cpp
+Compiling upsampling/upsamplerbase.cpp
+Compiling marker/exifmarker.cpp
+Compiling colortrafo/colortrafo.cpp
 Compiling coding/arithmetictemplate.cpp
 Compiling boxes/namespace.cpp
-ar: creating libtools.a
-Compiling coding/huffmancoder.cpp
-Compiling marker/huffmantable.cpp
-Compiling std/assert.cpp
-Compiling dct/liftingdct.cpp
-Compiling marker/frame.cpp
-Compiling coding/huffmandecoder.cpp
 Compiling boxes/filetypebox.cpp
-ar: creating libinterface.a
-Compiling coding/blockrow.cpp
-ar: creating libstd.a
+Compiling marker/actable.cpp
+Compiling marker/restartintervalmarker.cpp
+Compiling upsampling/upsampler.cpp
+Compiling coding/huffmancoder.cpp
+Compiling codestream/entropyparser.cpp
 Compiling boxes/databox.cpp
-Compiling codestream/image.cpp
-Compiling dct/deringing.cpp
-Compiling upsampling/upsamplerbase.cpp
-Compiling colortrafo/colortrafo.cpp
+Compiling codestream/rectanglerequest.cpp
+Compiling codestream/sequentialscan.cpp
+Compiling marker/scantypes.cpp
+Compiling coding/huffmandecoder.cpp
+Compiling marker/thresholds.cpp
+Compiling upsampling/cositedupsampler.cpp
 Compiling boxes/tonemapperbox.cpp
+Compiling coding/blockrow.cpp
+Compiling codestream/acsequentialscan.cpp
+Compiling codestream/predictorbase.cpp
+Compiling boxes/inversetonemappingbox.cpp
+Compiling colortrafo/integertrafo.cpp
+Compiling upsampling/downsamplerbase.cpp
+Compiling colortrafo/floattrafo.cpp
+Compiling colortrafo/ycbcrtrafo.cpp
+Compiling marker/lscolortrafo.cpp
 Compiling coding/quantizedrow.cpp
 Compiling coding/arthdeco.cpp
+Compiling boxes/floattonemappingbox.cpp
+Compiling control/bitmapctrl.cpp
+Compiling upsampling/downsampler.cpp
+Compiling dct/deringing.cpp
+ar: creating libmarker.a
+Compiling upsampling/interdownsampler.cpp
 Compiling coding/qmcoder.cpp
-Compiling marker/component.cpp
-Compiling marker/scan.cpp
-Compiling upsampling/upsampler.cpp
-Compiling boxes/inversetonemappingbox.cpp
-Compiling upsampling/cositedupsampler.cpp
-Compiling codestream/entropyparser.cpp
-Compiling colortrafo/integertrafo.cpp
+Compiling codestream/predictor.cpp
 Compiling coding/huffmanstatistics.cpp
-Compiling coding/actemplate.cpp
-Compiling control/bitmapctrl.cpp
+Compiling codestream/predictivescan.cpp
+Compiling boxes/parametrictonemappingbox.cpp
 Compiling control/residualblockhelper.cpp
-Compiling boxes/floattonemappingbox.cpp
+Compiling coding/actemplate.cpp
 Compiling control/blockctrl.cpp
-Compiling codestream/rectanglerequest.cpp
-Compiling boxes/parametrictonemappingbox.cpp
-Compiling upsampling/downsamplerbase.cpp
-Compiling boxes/nonlineartrafobox.cpp
-ar: creating libcoding.a
-Compiling marker/adobemarker.cpp
-Compiling codestream/sequentialscan.cpp
-Compiling upsampling/downsampler.cpp
-Compiling upsampling/interdownsampler.cpp
+Compiling codestream/losslessscan.cpp
 Compiling control/blockbuffer.cpp
-Compiling colortrafo/floattrafo.cpp
+Compiling codestream/aclosslessscan.cpp
 Compiling control/residualbuffer.cpp
+ar: creating libcoding.a
+Compiling control/linebuffer.cpp
+Compiling control/blockbitmaprequester.cpp
+Compiling codestream/refinementscan.cpp
+Compiling codestream/acrefinementscan.cpp
+ar: creating libupsampling.a
+Compiling codestream/jpeglsscan.cpp
+Compiling boxes/nonlineartrafobox.cpp
+Compiling control/linebitmaprequester.cpp
+Compiling control/lineadapter.cpp
 Compiling boxes/colortrafobox.cpp
-Compiling colortrafo/ycbcrtrafo.cpp
-Compiling marker/jfifmarker.cpp
+Compiling codestream/singlecomponentlsscan.cpp
+Compiling codestream/lineinterleavedlsscan.cpp
 Compiling boxes/dctbox.cpp
-Compiling boxes/outputconversionbox.cpp
-Compiling marker/exifmarker.cpp
+Compiling control/blocklineadapter.cpp
 Compiling colortrafo/multiplicationtrafo.cpp
-Compiling codestream/acsequentialscan.cpp
+Compiling codestream/sampleinterleavedlsscan.cpp
+Compiling control/linelineadapter.cpp
+Compiling control/linemerger.cpp
 Compiling colortrafo/lslosslesstrafo.cpp
-Compiling control/linebuffer.cpp
-Compiling marker/actable.cpp
-Compiling marker/restartintervalmarker.cpp
-Compiling marker/scantypes.cpp
-Compiling codestream/predictorbase.cpp
+Compiling colortrafo/trivialtrafo.cpp
+Compiling boxes/outputconversionbox.cpp
 Compiling boxes/refinementspecbox.cpp
-ar: creating libupsampling.a
-Compiling control/blockbitmaprequester.cpp
-Compiling codestream/predictor.cpp
-Compiling marker/thresholds.cpp
+Compiling control/hierarchicalbitmaprequester.cpp
+Compiling control/bufferctrl.cpp
 Compiling boxes/mergingspecbox.cpp
-Compiling marker/lscolortrafo.cpp
-Compiling colortrafo/trivialtrafo.cpp
-Compiling boxes/matrixbox.cpp
 Compiling colortrafo/colortransformerfactory.cpp
-Compiling control/linebitmaprequester.cpp
-Compiling codestream/predictivescan.cpp
-ar: creating libmarker.a
-Compiling control/lineadapter.cpp
+Compiling boxes/matrixbox.cpp
 Compiling boxes/lineartransformationbox.cpp
-Compiling codestream/losslessscan.cpp
-Compiling control/blocklineadapter.cpp
 Compiling boxes/floattransformationbox.cpp
 Compiling boxes/checksumbox.cpp
 Compiling boxes/alphabox.cpp
-Compiling codestream/aclosslessscan.cpp
-Compiling control/linelineadapter.cpp
-Compiling codestream/refinementscan.cpp
-Compiling codestream/acrefinementscan.cpp
-Compiling control/linemerger.cpp
-ar: creating libboxes.a
-Compiling control/hierarchicalbitmaprequester.cpp
-Compiling codestream/jpeglsscan.cpp
-Compiling control/bufferctrl.cpp
-Compiling codestream/singlecomponentlsscan.cpp
-Compiling codestream/lineinterleavedlsscan.cpp
-ar: creating libdct.a
-Compiling codestream/sampleinterleavedlsscan.cpp
 ar: creating libcontrol.a
 ar: creating libcodestream.a
+ar: creating libdct.a
+ar: creating libboxes.a
 ar: creating libcolortrafo.a
 Linking...
 make[1]: Leaving directory '/build/reproducible-path/libjpeg-0.0~git20241105.c719010'
@@ -897,12 +933,14 @@
 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/695826/tmp/hooks/B01_cleanup starting
+I: user script /srv/workspace/pbuilder/695826/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/377478 and its subdirectories
-I: Current time: Wed Feb 25 06:36:43 -12 2026
-I: pbuilder-time-stamp: 1772044603
+I: removing directory /srv/workspace/pbuilder/695826 and its subdirectories
+I: Current time: Fri Jan 24 02:15:35 +14 2025
+I: pbuilder-time-stamp: 1737634535