Diff of the two buildlogs:

--
--- b1/build.log	2025-03-09 14:24:44.264426934 +0000
+++ b2/build.log	2025-03-09 14:26:32.291563129 +0000
@@ -1,6 +1,6 @@
 I: pbuilder: network access will be disabled during build
-I: Current time: Sun Mar  9 02:23:32 -12 2025
-I: pbuilder-time-stamp: 1741530212
+I: Current time: Sun Apr 12 10:47:45 +14 2026
+I: pbuilder-time-stamp: 1775940465
 I: Building the build Environment
 I: extracting base tarball [/var/cache/pbuilder/trixie-reproducible-base.tgz]
 I: copying local configuration
@@ -22,52 +22,84 @@
 dpkg-source: info: unpacking erlang-p1-stun_1.2.15-1.debian.tar.xz
 I: Not using root during the build.
 I: Installing the build-deps
-I: user script /srv/workspace/pbuilder/1386343/tmp/hooks/D02_print_environment starting
+I: user script /srv/workspace/pbuilder/70594/tmp/hooks/D01_modify_environment starting
+debug: Running on codethink03-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 Apr 11 20:47 /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/70594/tmp/hooks/D01_modify_environment finished
+I: user script /srv/workspace/pbuilder/70594/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='trixie'
-  HOME='/root'
-  HOST_ARCH='arm64'
+  DIRSTACK=()
+  DISTRIBUTION=trixie
+  EUID=0
+  FUNCNAME=([0]="Echo" [1]="main")
+  GROUPS=()
+  HOME=/root
+  HOSTNAME=i-capture-the-hostname
+  HOSTTYPE=aarch64
+  HOST_ARCH=arm64
   IFS=' 	
   '
-  INVOCATION_ID='32f5d47fa5064c829a4d379218312838'
-  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='1386343'
-  PS1='# '
-  PS2='> '
+  INVOCATION_ID=32f2764ee3dd4b9dabc476532f84d7cd
+  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=70594
   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.UjXm3zAn/pbuilderrc_bEVf --distribution trixie --hookdir /etc/pbuilder/first-build-hooks --debbuildopts -b --basetgz /var/cache/pbuilder/trixie-reproducible-base.tgz --buildresult /srv/reproducible-results/rbuild-debian/r-b-build.UjXm3zAn/b1 --logfile b1/build.log erlang-p1-stun_1.2.15-1.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.UjXm3zAn/pbuilderrc_pV8c --distribution trixie --hookdir /etc/pbuilder/rebuild-hooks --debbuildopts -b --basetgz /var/cache/pbuilder/trixie-reproducible-base.tgz --buildresult /srv/reproducible-results/rbuild-debian/r-b-build.UjXm3zAn/b2 --logfile b2/build.log erlang-p1-stun_1.2.15-1.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 codethink04-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 14:40 /bin -> usr/bin
-I: user script /srv/workspace/pbuilder/1386343/tmp/hooks/D02_print_environment finished
+  lrwxrwxrwx 1 root root 7 Nov 22  2024 /bin -> usr/bin
+I: user script /srv/workspace/pbuilder/70594/tmp/hooks/D02_print_environment finished
  -> Attempting to satisfy build-dependencies
  -> Creating pbuilder-satisfydepends-dummy package
 Package: pbuilder-satisfydepends-dummy
@@ -417,7 +449,7 @@
 Get: 300 http://deb.debian.org/debian trixie/main arm64 erlang-inets arm64 1:27.2.4+dfsg-1 [671 kB]
 Get: 301 http://deb.debian.org/debian trixie/main arm64 erlang-p1-utils arm64 1.0.26-2 [125 kB]
 Get: 302 http://deb.debian.org/debian trixie/main arm64 erlang-p1-tls arm64 1.1.22-1 [49.7 kB]
-Fetched 187 MB in 1s (232 MB/s)
+Fetched 187 MB in 1s (218 MB/s)
 Preconfiguring packages ...
 Selecting previously unselected package libsystemd-shared:arm64.
 (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 ... 19914 files and directories currently installed.)
@@ -1668,7 +1700,11 @@
 Building tag database...
  -> Finished parsing the build-deps
 I: Building the package
-I: Running cd /build/reproducible-path/erlang-p1-stun-1.2.15/ && 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  > ../erlang-p1-stun_1.2.15-1_source.changes
+I: user script /srv/workspace/pbuilder/70594/tmp/hooks/A99_set_merged_usr starting
+Not re-configuring usrmerge for trixie
+I: user script /srv/workspace/pbuilder/70594/tmp/hooks/A99_set_merged_usr finished
+hostname: Name or service not known
+I: Running cd /build/reproducible-path/erlang-p1-stun-1.2.15/ && 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  > ../erlang-p1-stun_1.2.15-1_source.changes
 dpkg-buildpackage: info: source package erlang-p1-stun
 dpkg-buildpackage: info: source version 1.2.15-1
 dpkg-buildpackage: info: source distribution unstable
@@ -1871,17 +1907,17 @@
 Compiled src/turn_sm.erl
 Compiled src/stun_test.erl
 Compiled src/stun_sup.erl
+Compiled src/stun_logger.erl
 Compiled src/turn.erl
 Compiled src/stun_listener_sup.erl
-Compiled src/stun_logger.erl
 Compiled src/stun_acceptor_sup.erl
 Compiled src/turn_tmp_sup.erl
 Compiled src/stun_acceptor.erl
 Compiled src/stun_listener.erl
 Compiled src/stun.erl
-DEBUG: Worker exited cleanly
 Compiled src/stun_shaper.erl
 DEBUG: Worker exited cleanly
+DEBUG: Worker exited cleanly
 Compiled src/stun_codec.erl
 DEBUG: Worker exited cleanly
 INFO:  No app_vars_file defined.
@@ -1962,53 +1998,53 @@
 Compiled src/stun_tmp_sup.erl
 Compiled src/stun_app.erl
 Compiled src/turn_sm.erl
-Compiled src/turn.erl
-Compiled src/stun_sup.erl
 Compiled src/stun_test.erl
+Compiled src/stun_sup.erl
+Compiled src/turn.erl
 Compiled src/stun_listener_sup.erl
 Compiled src/stun_acceptor_sup.erl
 Compiled src/turn_tmp_sup.erl
 Compiled src/stun_logger.erl
-Compiled src/stun_codec.erl
-Compiled src/stun_acceptor.erl
+Compiled src/stun.erl
+Compiled src/stun_listener.erl
 Compiled src/stun_shaper.erl
 DEBUG: Worker exited cleanly
-Compiled src/stun_listener.erl
+Compiled src/stun_acceptor.erl
+Compiled src/stun_codec.erl
 DEBUG: Worker exited cleanly
-Compiled src/stun.erl
 DEBUG: Worker exited cleanly
 INFO:  Cover compiling /build/reproducible-path/erlang-p1-stun-1.2.15
 ======================== EUnit ========================
 module 'stun_tmp_sup'
 module 'stun_app'
 module 'turn_sm'
-module 'turn'
-module 'stun_sup'
 module 'stun_test'
-  stun_test: init_test...[0.016 s] ok
-  stun_test: mk_cert_test...ok
-  stun_test: add_udp_listener_test...[0.006 s] ok
-  stun_test: add_tcp_listener_test...[0.004 s] ok
-  stun_test: add_tls_listener_test...ok
-  stun_test: add_auto_listener_test...[0.011 s] ok
-  stun_test: bind_udp_test...[0.003 s] ok
-  stun_test: bind_tcp_test...ok
-  stun_test: bind_tls_test...[1.032 s] ok
-  stun_test: bind_auto_test...[1.018 s] ok
-  stun_test: del_tcp_listener_test...ok
-  stun_test: del_tls_listener_test...ok
-  stun_test: del_auto_listener_test...ok
-  stun_test: allocate_udp_test...[0.007 s] ok
-  [done in 2.140 s]
+  stun_test: init_test...[0.026 s] ok
+  stun_test: mk_cert_test...[0.002 s] ok
+  stun_test: add_udp_listener_test...[0.028 s] ok
+  stun_test: add_tcp_listener_test...[0.017 s] ok
+  stun_test: add_tls_listener_test...[0.001 s] ok
+  stun_test: add_auto_listener_test...[0.025 s] ok
+  stun_test: bind_udp_test...[0.008 s] ok
+  stun_test: bind_tcp_test...[0.001 s] ok
+  stun_test: bind_tls_test...[1.181 s] ok
+  stun_test: bind_auto_test...[1.021 s] ok
+  stun_test: del_tcp_listener_test...[0.001 s] ok
+  stun_test: del_tls_listener_test...[0.001 s] ok
+  stun_test: del_auto_listener_test...[0.001 s] ok
+  stun_test: allocate_udp_test...[0.017 s] ok
+  [done in 2.388 s]
+module 'stun_sup'
+module 'turn'
 module 'stun_listener_sup'
 module 'stun_acceptor_sup'
 module 'turn_tmp_sup'
 module 'stun_logger'
-module 'stun_codec'
-module 'stun_acceptor'
-module 'stun_shaper'
-module 'stun_listener'
 module 'stun'
+module 'stun_listener'
+module 'stun_shaper'
+module 'stun_acceptor'
+module 'stun_codec'
 =======================================================
   All 14 tests passed.
 Cover analysis: /build/reproducible-path/erlang-p1-stun-1.2.15/.eunit/index.html
@@ -2079,13 +2115,13 @@
                             {fullsweep_after,65535},
                             {minor_gcs,1}]},
                        {suspending,[]}]
-=INFO REPORT==== 9-Mar-2025::14:24:32.790289 ===
+=INFO REPORT==== 11-Apr-2026::20:49:09.391235 ===
     application: p1_utils
     exited: killed
     type: temporary
 
 DEBUG: Kill <0.282.0> [{registered_name,p1_utils_sup},
-                       {current_function,{logger_formatter,format_msg,3}},
+                       {current_function,{code_server,call,1}},
                        {initial_call,{proc_lib,init_p,5}},
                        {status,running},
                        {message_queue_len,0},
@@ -2099,8 +2135,8 @@
                        {group_leader,<0.280.0>},
                        {total_heap_size,8370},
                        {heap_size,4185},
-                       {stack_size,69},
-                       {reductions,4122},
+                       {stack_size,74},
+                       {reductions,9288},
                        {garbage_collection,
                            [{max_heap_size,
                                 #{error_logger => true,
@@ -2109,9 +2145,9 @@
                             {min_bin_vheap_size,46422},
                             {min_heap_size,233},
                             {fullsweep_after,65535},
-                            {minor_gcs,1}]},
+                            {minor_gcs,3}]},
                        {suspending,[]}]
-=ERROR REPORT==== 9-Mar-2025::14:24:32.790634 ===
+=ERROR REPORT==== 11-Apr-2026::20:49:09.391438 ===
 ** Generic server p1_utils_sup terminating 
 ** Last message in was {'EXIT',<0.281.0>,killed}
 ** When Server state == {state,{local,p1_utils_sup},
@@ -2171,13 +2207,13 @@
                             {fullsweep_after,65535},
                             {minor_gcs,0}]},
                        {suspending,[]}]
-=INFO REPORT==== 9-Mar-2025::14:24:32.791684 ===
+=INFO REPORT==== 11-Apr-2026::20:49:09.393372 ===
     application: stun
     exited: killed
     type: temporary
 
 DEBUG: Kill <0.285.0> [{registered_name,stun_sup},
-                       {current_function,{erlang,bif_handle_signals_return,2}},
+                       {current_function,{code_server,call,1}},
                        {initial_call,{proc_lib,init_p,5}},
                        {status,running},
                        {message_queue_len,0},
@@ -2189,10 +2225,10 @@
                        {error_handler,error_handler},
                        {priority,normal},
                        {group_leader,<0.283.0>},
-                       {total_heap_size,609},
-                       {heap_size,376},
-                       {stack_size,42},
-                       {reductions,663},
+                       {total_heap_size,5172},
+                       {heap_size,2586},
+                       {stack_size,74},
+                       {reductions,16966},
                        {garbage_collection,
                            [{max_heap_size,
                                 #{error_logger => true,
@@ -2201,8 +2237,40 @@
                             {min_bin_vheap_size,46422},
                             {min_heap_size,233},
                             {fullsweep_after,65535},
-                            {minor_gcs,4}]},
+                            {minor_gcs,3}]},
                        {suspending,[]}]
+=ERROR REPORT==== 11-Apr-2026::20:49:09.393687 ===
+** Generic server stun_sup terminating 
+** Last message in was {'EXIT',<0.284.0>,killed}
+** When Server state == {state,
+                            {local,stun_sup},
+                            one_for_one,
+                            {[turn_sm,turn_tmp_sup,stun_tmp_sup,
+                              stun_listener_sup],
+                             #{stun_tmp_sup =>
+                                   {child,<0.289.0>,stun_tmp_sup,
+                                       {stun_tmp_sup,start_link,[]},
+                                       permanent,false,infinity,supervisor,
+                                       [stun_tmp_sup]},
+                               turn_sm =>
+                                   {child,<0.291.0>,turn_sm,
+                                       {turn_sm,start_link,[]},
+                                       permanent,false,2000,worker,
+                                       [turn_sm]},
+                               turn_tmp_sup =>
+                                   {child,<0.290.0>,turn_tmp_sup,
+                                       {turn_tmp_sup,start_link,[]},
+                                       permanent,false,infinity,supervisor,
+                                       [turn_tmp_sup]},
+                               stun_listener_sup =>
+                                   {child,<0.286.0>,stun_listener_sup,
+                                       {stun_listener_sup,start_link,[]},
+                                       permanent,false,infinity,supervisor,
+                                       [stun_listener_sup]}}},
+                            undefined,10,1,[],0,never,stun_sup,[]}
+** Reason for termination ==
+** killed
+
 DEBUG: Kill <0.286.0> []
 DEBUG: Kill <0.287.0> []
 DEBUG: Kill <0.288.0> []
@@ -2211,7 +2279,7 @@
 DEBUG: Kill <0.291.0> []
 DEBUG: Kill <0.294.0> []
 DEBUG: Postdirs: []
-	rm -fr -- /tmp/dh-xdg-rundir-09M_Id87
+	rm -fr -- /tmp/dh-xdg-rundir-4yAHSAZX
    create-stamp debian/debhelper-build-stamp
    dh_testroot -O--buildsystem=rebar
    dh_prep -O--buildsystem=rebar
@@ -2346,12 +2414,14 @@
 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/70594/tmp/hooks/B01_cleanup starting
+I: user script /srv/workspace/pbuilder/70594/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/1386343 and its subdirectories
-I: Current time: Sun Mar  9 02:24:43 -12 2025
-I: pbuilder-time-stamp: 1741530283
+I: removing directory /srv/workspace/pbuilder/70594 and its subdirectories
+I: Current time: Sun Apr 12 10:49:29 +14 2026
+I: pbuilder-time-stamp: 1775940569