Diff of the two buildlogs:

--
--- b1/build.log	2024-05-17 17:37:10.136036371 +0000
+++ b2/build.log	2024-05-17 17:38:10.993447069 +0000
@@ -1,6 +1,6 @@
 I: pbuilder: network access will be disabled during build
-I: Current time: Fri May 17 05:36:31 -12 2024
-I: pbuilder-time-stamp: 1715967391
+I: Current time: Fri Jun 20 14:00:13 +14 2025
+I: pbuilder-time-stamp: 1750377613
 I: Building the build Environment
 I: extracting base tarball [/var/cache/pbuilder/trixie-reproducible-base.tgz]
 I: copying local configuration
@@ -26,52 +26,84 @@
 dpkg-source: info: unpacking golang-github-brentp-goluaez_0.0~git20160116.dd35d08-2.debian.tar.xz
 I: Not using root during the build.
 I: Installing the build-deps
-I: user script /srv/workspace/pbuilder/1320062/tmp/hooks/D02_print_environment starting
+I: user script /srv/workspace/pbuilder/1104990/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 Jun 20 00:00 /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/1104990/tmp/hooks/D01_modify_environment finished
+I: user script /srv/workspace/pbuilder/1104990/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]="21" [3]="1" [4]="release" [5]="aarch64-unknown-linux-gnu")
+  BASH_VERSION='5.2.21(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='1028b6dcf29147c0a67c9e243621c8b6'
-  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='1320062'
-  PS1='# '
-  PS2='> '
+  INVOCATION_ID=21c626f3d16d4303a7f20d0b564a1621
+  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=1104990
   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.lxrwcwBs/pbuilderrc_Ai2m --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.lxrwcwBs/b1 --logfile b1/build.log golang-github-brentp-goluaez_0.0~git20160116.dd35d08-2.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.lxrwcwBs/pbuilderrc_or4n --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.lxrwcwBs/b2 --logfile b2/build.log golang-github-brentp-goluaez_0.0~git20160116.dd35d08-2.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 codethink02-arm64 6.1.0-21-cloud-arm64 #1 SMP Debian 6.1.90-1 (2024-05-03) aarch64 GNU/Linux
+  Linux i-capture-the-hostname 6.1.0-21-cloud-arm64 #1 SMP Debian 6.1.90-1 (2024-05-03) aarch64 GNU/Linux
 I: ls -l /bin
-  lrwxrwxrwx 1 root root 7 May 15 11:24 /bin -> usr/bin
-I: user script /srv/workspace/pbuilder/1320062/tmp/hooks/D02_print_environment finished
+  lrwxrwxrwx 1 root root 7 Jun 18 17:46 /bin -> usr/bin
+I: user script /srv/workspace/pbuilder/1104990/tmp/hooks/D02_print_environment finished
  -> Attempting to satisfy build-dependencies
  -> Creating pbuilder-satisfydepends-dummy package
 Package: pbuilder-satisfydepends-dummy
@@ -169,7 +201,7 @@
 Get: 50 http://deb.debian.org/debian trixie/main arm64 golang-github-yuin-gopher-lua-dev all 0.0~git20170915.0.eb1c729-5 [115 kB]
 Get: 51 http://deb.debian.org/debian trixie/main arm64 golang-github-yuin-gluare-dev all 0.0~git20170607.d7c94f1-2 [5204 B]
 Get: 52 http://deb.debian.org/debian trixie/main arm64 golang-gopkg-check.v1-dev all 0.0+git20200902.038fdea-1 [32.1 kB]
-Fetched 68.0 MB in 0s (190 MB/s)
+Fetched 68.0 MB in 0s (192 MB/s)
 debconf: delaying package configuration, since apt-utils is not installed
 Selecting previously unselected package sensible-utils.
 (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 ... 19744 files and directories currently installed.)
@@ -392,7 +424,11 @@
 Building tag database...
  -> Finished parsing the build-deps
 I: Building the package
-I: Running cd /build/reproducible-path/golang-github-brentp-goluaez-0.0~git20160116.dd35d08/ && 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  > ../golang-github-brentp-goluaez_0.0~git20160116.dd35d08-2_source.changes
+I: user script /srv/workspace/pbuilder/1104990/tmp/hooks/A99_set_merged_usr starting
+Not re-configuring usrmerge for trixie
+I: user script /srv/workspace/pbuilder/1104990/tmp/hooks/A99_set_merged_usr finished
+hostname: Name or service not known
+I: Running cd /build/reproducible-path/golang-github-brentp-goluaez-0.0~git20160116.dd35d08/ && 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  > ../golang-github-brentp-goluaez_0.0~git20160116.dd35d08-2_source.changes
 dpkg-buildpackage: info: source package golang-github-brentp-goluaez
 dpkg-buildpackage: info: source version 0.0~git20160116.dd35d08-2
 dpkg-buildpackage: info: source distribution unstable
@@ -412,27 +448,27 @@
    dh_auto_build -O--builddirectory=_build -O--buildsystem=golang
 	cd _build && go install -trimpath -v -p 12 github.com/brentp/goluaez github.com/brentp/goluaez/example
 internal/coverage/rtcov
-internal/unsafeheader
-internal/goos
-internal/godebugs
+internal/itoa
 math/bits
 internal/goexperiment
-internal/cpu
-internal/race
-unicode/utf8
+internal/unsafeheader
 runtime/internal/syscall
-internal/itoa
-sync/atomic
+internal/godebugs
+internal/goos
+unicode/utf8
+internal/race
 internal/goarch
-unicode
+internal/cpu
 cmp
 log/internal
+sync/atomic
+unicode
 internal/abi
-runtime/internal/math
 internal/chacha8rand
-math
+runtime/internal/math
 runtime/internal/sys
 slices
+math
 internal/bytealg
 runtime/internal/atomic
 runtime
@@ -440,9 +476,9 @@
 sync
 internal/testlog
 internal/bisect
+internal/godebug
 errors
 sort
-internal/godebug
 strconv
 io
 internal/oserror
@@ -453,19 +489,19 @@
 bytes
 strings
 reflect
-regexp/syntax
 bufio
+regexp/syntax
 regexp
 internal/syscall/unix
 time
 internal/syscall/execenv
-context
-io/fs
 internal/poll
+io/fs
+context
 internal/fmtsort
 os
-io/ioutil
 fmt
+io/ioutil
 path/filepath
 os/exec
 github.com/yuin/gopher-lua/ast
@@ -481,9 +517,9 @@
 ?   	github.com/brentp/goluaez/example	[no test files]
 === RUN   Test
 OK: 13 passed
---- PASS: Test (0.01s)
+--- PASS: Test (0.24s)
 PASS
-ok  	github.com/brentp/goluaez	0.019s
+ok  	github.com/brentp/goluaez	0.269s
    create-stamp debian/debhelper-build-stamp
    dh_testroot -O--builddirectory=_build -O--buildsystem=golang
    dh_prep -O--builddirectory=_build -O--buildsystem=golang
@@ -513,12 +549,14 @@
 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/1104990/tmp/hooks/B01_cleanup starting
+I: user script /srv/workspace/pbuilder/1104990/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/1320062 and its subdirectories
-I: Current time: Fri May 17 05:37:09 -12 2024
-I: pbuilder-time-stamp: 1715967429
+I: removing directory /srv/workspace/pbuilder/1104990 and its subdirectories
+I: Current time: Fri Jun 20 14:01:09 +14 2025
+I: pbuilder-time-stamp: 1750377669