Diff of the two buildlogs:

--
--- b1/build.log	2025-03-09 14:27:58.635675444 +0000
+++ b2/build.log	2025-03-09 14:30:50.535935249 +0000
@@ -1,6 +1,6 @@
 I: pbuilder: network access will be disabled during build
-I: Current time: Sat Apr 11 08:49:39 -12 2026
-I: pbuilder-time-stamp: 1775940579
+I: Current time: Mon Mar 10 04:28:01 +14 2025
+I: pbuilder-time-stamp: 1741530481
 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-pkix_1.0.10-2.debian.tar.xz
 I: Not using root during the build.
 I: Installing the build-deps
-I: user script /srv/workspace/pbuilder/90884/tmp/hooks/D02_print_environment starting
+I: user script /srv/workspace/pbuilder/1487304/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 Mar  9 14:28 /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/1487304/tmp/hooks/D01_modify_environment finished
+I: user script /srv/workspace/pbuilder/1487304/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='f50ad406197b472684d631ff2af59a04'
-  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='90884'
-  PS1='# '
-  PS2='> '
+  INVOCATION_ID=5ab150b0c66f40529f14fa1fd2bd6d35
+  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=1487304
   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.CIpTY9YS/pbuilderrc_91J6 --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.CIpTY9YS/b1 --logfile b1/build.log erlang-p1-pkix_1.0.10-2.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.CIpTY9YS/pbuilderrc_EUaN --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.CIpTY9YS/b2 --logfile b2/build.log erlang-p1-pkix_1.0.10-2.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/90884/tmp/hooks/D02_print_environment finished
+  lrwxrwxrwx 1 root root 7 Nov 22 14:40 /bin -> usr/bin
+I: user script /srv/workspace/pbuilder/1487304/tmp/hooks/D02_print_environment finished
  -> Attempting to satisfy build-dependencies
  -> Creating pbuilder-satisfydepends-dummy package
 Package: pbuilder-satisfydepends-dummy
@@ -416,7 +448,7 @@
 Get: 299 http://deb.debian.org/debian trixie/main arm64 erlang-snmp arm64 1:27.2.4+dfsg-1 [1951 kB]
 Get: 300 http://deb.debian.org/debian trixie/main arm64 rebar arm64 2.6.4-7 [201 kB]
 Get: 301 http://deb.debian.org/debian trixie/main arm64 dh-rebar all 0.0.6 [7820 B]
-Fetched 187 MB in 1s (263 MB/s)
+Fetched 187 MB in 1s (261 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.)
@@ -1670,7 +1702,11 @@
 Building tag database...
  -> Finished parsing the build-deps
 I: Building the package
-I: Running cd /build/reproducible-path/erlang-p1-pkix-1.0.10/ && 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-pkix_1.0.10-2_source.changes
+I: user script /srv/workspace/pbuilder/1487304/tmp/hooks/A99_set_merged_usr starting
+Not re-configuring usrmerge for trixie
+I: user script /srv/workspace/pbuilder/1487304/tmp/hooks/A99_set_merged_usr finished
+hostname: Name or service not known
+I: Running cd /build/reproducible-path/erlang-p1-pkix-1.0.10/ && 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-pkix_1.0.10-2_source.changes
 dpkg-buildpackage: info: source package erlang-p1-pkix
 dpkg-buildpackage: info: source version 1.0.10-2
 dpkg-buildpackage: info: source distribution unstable
@@ -1808,8 +1844,8 @@
 DEBUG: erl_opts [{d,'TEST'},debug_info,debug_info]
 DEBUG: Files to compile first: []
 DEBUG: Starting 3 compile worker(s)
-Compiled src/pkix_sup.erl
 Compiled src/pkix_app.erl
+Compiled src/pkix_sup.erl
 DEBUG: Worker exited cleanly
 Compiled src/pkix.erl
 DEBUG: Worker exited cleanly
@@ -1817,69 +1853,69 @@
 DEBUG: Worker exited cleanly
 INFO:  Cover compiling /build/reproducible-path/erlang-p1-pkix-1.0.10
 ======================== EUnit ========================
-module 'pkix_sup'
 module 'pkix_app'
+module 'pkix_sup'
 module 'pkix'
 module 'pkix_test'
-  pkix_test: start_test...[0.015 s] ok
+  pkix_test: start_test...[0.016 s] ok
   pkix_test: get_certfiles_test...ok
-  pkix_test: non_existent_domain_certfile_test...ok
-  pkix_test: commit_empty_test...[0.155 s] ok
-  pkix_test: is_pem_file_test...[0.042 s] ok
-  pkix_test: add_del_dsa_key_test...ok
-  pkix_test: add_del_dsa_cert_test...ok
-  pkix_test: add_del_rsa_key_test...ok
-  pkix_test: add_del_rsa_cert_test...[0.001 s] ok
-  pkix_test: add_del_ec_secp384r1_key_test...ok
-  pkix_test: add_del_ec_prime256v1_key_test...ok
-  pkix_test: del_non_existent_test...ok
-  pkix_test: add_non_existent_test...ok
-  pkix_test: add_del_cert_with_key_test...[0.001 s] ok
-  pkix_test: add_empty_file_test...ok
+  pkix_test: non_existent_domain_certfile_test...[0.001 s] ok
+  pkix_test: commit_empty_test...[0.248 s] ok
+  pkix_test: is_pem_file_test...[0.039 s] ok
+  pkix_test: add_del_dsa_key_test...[0.001 s] ok
+  pkix_test: add_del_dsa_cert_test...[0.002 s] ok
+  pkix_test: add_del_rsa_key_test...[0.002 s] ok
+  pkix_test: add_del_rsa_cert_test...[0.002 s] ok
+  pkix_test: add_del_ec_secp384r1_key_test...[0.002 s] ok
+  pkix_test: add_del_ec_prime256v1_key_test...[0.002 s] ok
+  pkix_test: del_non_existent_test...[0.001 s] ok
+  pkix_test: add_non_existent_test...[0.001 s] ok
+  pkix_test: add_del_cert_with_key_test...[0.002 s] ok
+  pkix_test: add_empty_file_test...[0.002 s] ok
   pkix_test: add_file_without_pems_test...[0.002 s] ok
-  pkix_test: unsupported_pem_1_test...ok
-  pkix_test: unsupported_pem_2_test...ok
-  pkix_test: ignore_text_between_pems_test...[0.001 s] ok
-  pkix_test: unexpected_eof_test...ok
-  pkix_test: nested_pem_test...[0.001 s] ok
-  pkix_test: bad_pem_test...ok
-  pkix_test: bad_der_test...ok
-  pkix_test: encrypted_key_test...[0.001 s] ok
-  pkix_test: commit_self_signed_no_validate_test...[0.065 s] ok
-  pkix_test: commit_self_signed_soft_validate_test...[0.076 s] ok
-  pkix_test: commit_self_signed_hard_validate_test...[0.034 s] ok
-  pkix_test: missing_priv_key_test...[0.026 s] ok
-  pkix_test: unused_priv_key_test...[0.026 s] ok
-  pkix_test: commit_valid_test...[0.037 s] ok
-  pkix_test: commit_valid_chain_test...[0.026 s] ok
-  pkix_test: non_existent_cafile_test...[0.024 s] ok
-  pkix_test: commit_valid_with_bad_cafile_test...[0.001 s] ok
+  pkix_test: unsupported_pem_1_test...[0.002 s] ok
+  pkix_test: unsupported_pem_2_test...[0.002 s] ok
+  pkix_test: ignore_text_between_pems_test...[0.002 s] ok
+  pkix_test: unexpected_eof_test...[0.001 s] ok
+  pkix_test: nested_pem_test...[0.002 s] ok
+  pkix_test: bad_pem_test...[0.002 s] ok
+  pkix_test: bad_der_test...[0.002 s] ok
+  pkix_test: encrypted_key_test...[0.002 s] ok
+  pkix_test: commit_self_signed_no_validate_test...[0.054 s] ok
+  pkix_test: commit_self_signed_soft_validate_test...[0.077 s] ok
+  pkix_test: commit_self_signed_hard_validate_test...[0.024 s] ok
+  pkix_test: missing_priv_key_test...[0.021 s] ok
+  pkix_test: unused_priv_key_test...[0.025 s] ok
+  pkix_test: commit_valid_test...[0.033 s] ok
+  pkix_test: commit_valid_chain_test...[0.023 s] ok
+  pkix_test: non_existent_cafile_test...[0.023 s] ok
+  pkix_test: commit_valid_with_bad_cafile_test...[0.002 s] ok
   pkix_test: commit_bad_dir_test...[0.018 s] ok
-  pkix_test: no_domain_test...[0.022 s] ok
-  pkix_test: get_certfile_test...[0.021 s] ok
-  pkix_test: sort_by_validity_test...[0.023 s] ok
-  pkix_test: sort_by_expiration_date_test...[0.042 s] ok
-  pkix_test: cert_info_test...[0.019 s] ok
-  pkix_test: notify_before...[4.053 s] ok
-=WARNING REPORT==== 11-Apr-2026::20:50:44.830122 ===
+  pkix_test: no_domain_test...[0.024 s] ok
+  pkix_test: get_certfile_test...[0.067 s] ok
+  pkix_test: sort_by_validity_test...[0.024 s] ok
+  pkix_test: sort_by_expiration_date_test...[0.064 s] ok
+  pkix_test: cert_info_test...[0.061 s] ok
+  pkix_test: notify_before...=WARNING REPORT==== 9-Mar-2025::14:30:33.778036 ===
 Unexpected call: eunit_call
-  pkix_test: unexpected_call_test...[0.011 s] ok
-=WARNING REPORT==== 11-Apr-2026::20:50:44.844109 ===
+[4.314 s] ok
+  pkix_test: unexpected_call_test...[0.012 s] ok
+=WARNING REPORT==== 9-Mar-2025::14:30:33.793945 ===
 Unexpected cast: eunit_cast
-  pkix_test: unexpected_cast_test...=WARNING REPORT==== 11-Apr-2026::20:50:44.847088 ===
+  pkix_test: unexpected_cast_test...ok
+=WARNING REPORT==== 9-Mar-2025::14:30:33.801941 ===
 Unexpected info: eunit_info
-ok
   pkix_test: unexpected_info_test...ok
-  pkix_test: format_error_test...[0.003 s] ok
-  pkix_test: removed_before_commit_test...[0.049 s] ok
-  pkix_test: gnutls_test...[0.054 s] ok
-  pkix_test: stop_test...=INFO REPORT==== 11-Apr-2026::20:50:44.969454 ===
+  pkix_test: format_error_test...[0.008 s] ok
+  pkix_test: removed_before_commit_test...[0.054 s] ok
+  pkix_test: gnutls_test...[0.050 s] ok
+  pkix_test: stop_test...=INFO REPORT==== 9-Mar-2025::14:30:33.937282 ===
     application: pkix
     exited: stopped
     type: temporary
 
 [0.004 s] ok
-  [done in 4.995 s]
+  [done in 5.571 s]
 =======================================================
   All 47 tests passed.
 Cover analysis: /build/reproducible-path/erlang-p1-pkix-1.0.10/.eunit/index.html
@@ -1899,7 +1935,7 @@
 DEBUG: Reconstruct pkix []
 DEBUG: No processes to kill
 DEBUG: Postdirs: []
-	rm -fr -- /tmp/dh-xdg-rundir-u16GVQgG
+	rm -fr -- /tmp/dh-xdg-rundir-GYSyHi2t
    create-stamp debian/debhelper-build-stamp
    dh_testroot -O--buildsystem=rebar
    dh_prep -O--buildsystem=rebar
@@ -2023,12 +2059,14 @@
 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/1487304/tmp/hooks/B01_cleanup starting
+I: user script /srv/workspace/pbuilder/1487304/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/90884 and its subdirectories
-I: Current time: Sat Apr 11 08:50:55 -12 2026
-I: pbuilder-time-stamp: 1775940655
+I: removing directory /srv/workspace/pbuilder/1487304 and its subdirectories
+I: Current time: Mon Mar 10 04:30:49 +14 2025
+I: pbuilder-time-stamp: 1741530649