Diff of the two buildlogs:

--
--- b1/build.log	2025-02-21 22:24:13.498335010 +0000
+++ b2/build.log	2025-02-21 22:45:54.947383676 +0000
@@ -1,6 +1,6 @@
 I: pbuilder: network access will be disabled during build
-I: Current time: Thu Mar 26 16:35:35 -12 2026
-I: pbuilder-time-stamp: 1774586135
+I: Current time: Sat Feb 22 12:24:16 +14 2025
+I: pbuilder-time-stamp: 1740176656
 I: Building the build Environment
 I: extracting base tarball [/var/cache/pbuilder/unstable-reproducible-base.tgz]
 I: copying local configuration
@@ -42,52 +42,84 @@
 dpkg-source: info: applying fix-rl_do_undo-crash.diff
 I: using fakeroot in build.
 I: Installing the build-deps
-I: user script /srv/workspace/pbuilder/4073199/tmp/hooks/D02_print_environment starting
+I: user script /srv/workspace/pbuilder/4047094/tmp/hooks/D01_modify_environment starting
+debug: Running on codethink04-arm64.
+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 Feb 21 22:24 /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/4047094/tmp/hooks/D01_modify_environment finished
+I: user script /srv/workspace/pbuilder/4047094/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='arm64'
-  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]="aarch64-unknown-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=arm64
+  DEBIAN_FRONTEND=noninteractive
   DEB_BUILD_OPTIONS='buildinfo=+all reproducible=+all parallel=12 '
-  DISTRIBUTION='unstable'
-  HOME='/root'
-  HOST_ARCH='arm64'
+  DIRSTACK=()
+  DISTRIBUTION=unstable
+  EUID=0
+  FUNCNAME=([0]="Echo" [1]="main")
+  GROUPS=()
+  HOME=/root
+  HOSTNAME=i-capture-the-hostname
+  HOSTTYPE=aarch64
+  HOST_ARCH=arm64
   IFS=' 	
   '
-  INVOCATION_ID='b1ba9d27881446858b0dfafa7c5670e1'
-  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='4073199'
-  PS1='# '
-  PS2='> '
+  INVOCATION_ID=142b47cca950483aa3f8ceaf4f822b59
+  LANG=C
+  LANGUAGE=nl_BE:nl
+  LC_ALL=C
+  MACHTYPE=aarch64-unknown-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=4047094
   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.fcsgFyjt/pbuilderrc_n8FF --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.fcsgFyjt/b1 --logfile b1/build.log bash_5.2.37-1.1.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'
-  http_proxy='http://192.168.101.4:3128'
+  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.fcsgFyjt/pbuilderrc_B6Tl --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.fcsgFyjt/b2 --logfile b2/build.log bash_5.2.37-1.1.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'
+  http_proxy=http://192.168.101.4:3128
 I: uname -a
-  Linux codethink03-arm64 6.1.0-31-cloud-arm64 #1 SMP Debian 6.1.128-1 (2025-02-07) aarch64 GNU/Linux
+  Linux i-capture-the-hostname 6.1.0-31-cloud-arm64 #1 SMP Debian 6.1.128-1 (2025-02-07) aarch64 GNU/Linux
 I: ls -l /bin
-  lrwxrwxrwx 1 root root 7 Nov 22  2024 /bin -> usr/bin
-I: user script /srv/workspace/pbuilder/4073199/tmp/hooks/D02_print_environment finished
+  lrwxrwxrwx 1 root root 7 Nov 22 14:40 /bin -> usr/bin
+I: user script /srv/workspace/pbuilder/4047094/tmp/hooks/D02_print_environment finished
  -> Attempting to satisfy build-dependencies
  -> Creating pbuilder-satisfydepends-dummy package
 Package: pbuilder-satisfydepends-dummy
@@ -287,7 +319,7 @@
 Get: 133 http://deb.debian.org/debian unstable/main arm64 texlive-fonts-recommended all 2024.20250114-1 [4991 kB]
 Get: 134 http://deb.debian.org/debian unstable/main arm64 texlive-latex-base all 2024.20250114-1 [1282 kB]
 Get: 135 http://deb.debian.org/debian unstable/main arm64 time arm64 1.9-0.2+b1 [48.1 kB]
-Fetched 101 MB in 1s (74.5 MB/s)
+Fetched 101 MB in 1s (167 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 ... 19889 files and directories currently installed.)
@@ -874,7 +906,11 @@
 fakeroot is already the newest version (1.37-1).
 0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
 I: Building the package
-I: Running cd /build/reproducible-path/bash-5.2.37/ && 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  > ../bash_5.2.37-1.1_source.changes
+I: user script /srv/workspace/pbuilder/4047094/tmp/hooks/A99_set_merged_usr starting
+Not re-configuring usrmerge for unstable
+I: user script /srv/workspace/pbuilder/4047094/tmp/hooks/A99_set_merged_usr finished
+hostname: Name or service not known
+I: Running cd /build/reproducible-path/bash-5.2.37/ && 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  > ../bash_5.2.37-1.1_source.changes
 dpkg-buildpackage: info: source package bash
 dpkg-buildpackage: info: source version 5.2.37-1.1
 dpkg-buildpackage: info: source distribution unstable
@@ -3262,7 +3298,7 @@
 /usr/bin/ld: ./lib/sh/libsh.a(tmpfile.o): in function `sh_mktmpname':
 ./build-bash/lib/sh/../../.././lib/sh/tmpfile.c:160:(.text+0x170): warning: the use of `mktemp' is dangerous, better use `mkstemp' or `mkdtemp'
 ls -l bash
--rwxr-xr-x 1 pbuilder1 pbuilder1 4754080 Mar 27 04:42 bash
+-rwxrwxr-x 1 pbuilder2 pbuilder2 4754080 Feb 21 22:32 bash
 size bash
    text	   data	    bss	    dec	    hex	filename
 1301050	  51404	  45128	1397582	 15534e	bash
@@ -5725,7 +5761,7 @@
 /usr/bin/ld: ./build-static/.././bashline.c:2606:(.text+0x8630): warning: Using 'setservent' in statically linked applications requires at runtime the shared libraries from the glibc version used for linking
 /usr/bin/ld: ./build-static/.././bashline.c:2631:(.text+0x872c): warning: Using 'endservent' in statically linked applications requires at runtime the shared libraries from the glibc version used for linking
 ls -l bash
--rwxr-xr-x 1 pbuilder1 pbuilder1 5792120 Mar 27 04:44 bash
+-rwxrwxr-x 1 pbuilder2 pbuilder2 5792120 Feb 21 22:37 bash
 size bash
    text	   data	    bss	    dec	    hex	filename
 2176137	  83484	  71248	2330869	 2390f5	bash
@@ -5980,10 +6016,11 @@
 /usr/bin/ld: ./lib/sh/libsh.a(tmpfile.o): in function `sh_mktmpname':
 ./build-bash/lib/sh/../../.././lib/sh/tmpfile.c:160:(.text+0x170): warning: the use of `mktemp' is dangerous, better use `mkstemp' or `mkdtemp'
 ls -l bash
--rwxr-xr-x 1 pbuilder1 pbuilder1 4754080 Mar 27 04:44 bash
+-rwxrwxr-x 1 pbuilder2 pbuilder2 4754080 Feb 21 22:37 bash
 size bash
    text	   data	    bss	    dec	    hex	filename
 1301050	  51404	  45128	1397582	 15534e	bash
+declare -r SHELLOPTS="braceexpand:hashall:interactive-comments"
 Testing /build/reproducible-path/bash-5.2.37/build-bash/bash
 version: 5.2.37(1)-release
 versinfo: 5 2 37 1 release aarch64-unknown-linux-gnu
@@ -6023,9 +6060,9 @@
 run-comsub-eof
 run-comsub-posix
 30d29
-< ./comsub-posix.tests: line 126: cd: /nonexistent/first-build: No such file or directory
+< ./comsub-posix.tests: line 126: cd: /nonexistent/second-build: No such file or directory
 32d30
-< ./comsub-posix.tests: line 129: cd: /nonexistent/first-build: No such file or directory
+< ./comsub-posix.tests: line 129: cd: /nonexistent/second-build: No such file or directory
 run-cond
 warning: all of these tests will fail if the conditional command has not
 warning: been compiled into the shell
@@ -6059,7 +6096,7 @@
 31a31
 > trap -- 'echo USR1' SIGUSR1
 63,64d62
-< bash: cannot set terminal process group (4073197): Inappropriate ioctl for device
+< bash: cannot set terminal process group (4047090): Inappropriate ioctl for device
 < bash: no job control in this shell
 run-exp-tests
 run-exportfunc
@@ -6099,6 +6136,12 @@
 < Passed all 998 Unicode tests
 ---
 > Passed all 1378 Unicode tests
+53,54c53,54
+< ./unicode3.sub: regel 5: $'5\247@3\231+\306S8\237\242\352\263': opdracht niet gevonden
+< ./unicode3.sub: regel 7: cd: $'5\247@3\231+\306S8\237\242\352\263': Bestand of map bestaat niet
+---
+> ./unicode3.sub: line 5: $'5\247@3\231+\306S8\237\242\352\263': command not found
+> ./unicode3.sub: line 7: cd: $'5\247@3\231+\306S8\237\242\352\263': No such file or directory
 run-invert
 run-iquote
 run-jobs
@@ -6174,10 +6217,10 @@
 < 4
 ---
 > 
-73c71
+73d70
 < 0
----
-> 1
+74a72
+> timeout 1: ok
 76c74
 < 1
 ---
@@ -6233,8 +6276,8 @@
 101d100
 < ./vredir8.sub: line 10: /dev/tty: No such device or address
 make[1]: Leaving directory '/build/reproducible-path/bash-5.2.37/build-bash'
-24.71user 12.24system 2:08.93elapsed 28%CPU (0avgtext+0avgdata 89608maxresident)k
-0inputs+0outputs (0major+1987875minor)pagefaults 0swaps
+21.72user 2.75system 6:04.05elapsed 6%CPU (0avgtext+0avgdata 89588maxresident)k
+0inputs+0outputs (0major+2022361minor)pagefaults 0swaps
 END test
 touch stamps/stamp-check
  fakeroot debian/rules binary
@@ -6409,7 +6452,7 @@
 /usr/bin/ld: ./lib/sh/libsh.a(tmpfile.o): in function `sh_mktmpname':
 ./build-bash/lib/sh/../../.././lib/sh/tmpfile.c:160:(.text+0x170): warning: the use of `mktemp' is dangerous, better use `mkstemp' or `mkdtemp'
 ls -l bash
--rwxr-xr-x 1 root root 4754080 Mar 27 04:46 bash
+-rwxrwxr-x 1 root root 4754080 Feb 21 22:43 bash
 size bash
    text	   data	    bss	    dec	    hex	filename
 1301050	  51404	  45128	1397582	 15534e	bash
@@ -7291,8 +7334,8 @@
 dh_gencontrol -pbash-builtins
 dh_md5sums -pbash-builtins
 dh_builddeb -pbash-builtins
-dpkg-deb: building package 'bash-builtins' in '../bash-builtins_5.2.37-1.1_arm64.deb'.
 dpkg-deb: building package 'bash-builtins-dbgsym' in '../bash-builtins-dbgsym_5.2.37-1.1_arm64.deb'.
+dpkg-deb: building package 'bash-builtins' in '../bash-builtins_5.2.37-1.1_arm64.deb'.
 /usr/bin/make -f debian/rules do-build-static \
     bash_src=. \
     build=static \
@@ -7321,8 +7364,8 @@
 	'-Vglibc:Source=glibc (= 2.40-7), '
 dh_md5sums -pbash-static
 dh_builddeb -pbash-static
-dpkg-deb: building package 'bash-static' in '../bash-static_5.2.37-1.1_arm64.deb'.
 dpkg-deb: building package 'bash-static-dbgsym' in '../bash-static-dbgsym_5.2.37-1.1_arm64.deb'.
+dpkg-deb: building package 'bash-static' in '../bash-static_5.2.37-1.1_arm64.deb'.
  dpkg-genbuildinfo --build=binary -O../bash_5.2.37-1.1_arm64.buildinfo
  dpkg-genchanges --build=binary -O../bash_5.2.37-1.1_arm64.changes
 dpkg-genchanges: info: binary-only upload (no source code included)
@@ -7330,12 +7373,14 @@
 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/4047094/tmp/hooks/B01_cleanup starting
+I: user script /srv/workspace/pbuilder/4047094/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/4073199 and its subdirectories
-I: Current time: Thu Mar 26 16:47:11 -12 2026
-I: pbuilder-time-stamp: 1774586831
+I: removing directory /srv/workspace/pbuilder/4047094 and its subdirectories
+I: Current time: Sat Feb 22 12:45:53 +14 2025
+I: pbuilder-time-stamp: 1740177953