Diff of the two buildlogs:

--
--- b1/build.log	2025-02-19 11:25:26.508884124 +0000
+++ b2/build.log	2025-02-19 11:27:48.146523382 +0000
@@ -1,6 +1,6 @@
 I: pbuilder: network access will be disabled during build
-I: Current time: Tue Mar 24 05:46:36 -12 2026
-I: pbuilder-time-stamp: 1774374396
+I: Current time: Thu Feb 20 01:25:28 +14 2025
+I: pbuilder-time-stamp: 1739964328
 I: Building the build Environment
 I: extracting base tarball [/var/cache/pbuilder/unstable-reproducible-base.tgz]
 I: copying local configuration
@@ -22,52 +22,84 @@
 dpkg-source: info: unpacking golang-github-tillitis-tkeyutil_0.0.9-1.debian.tar.xz
 I: Not using root during the build.
 I: Installing the build-deps
-I: user script /srv/workspace/pbuilder/3272621/tmp/hooks/D02_print_environment starting
+I: user script /srv/workspace/pbuilder/857809/tmp/hooks/D01_modify_environment starting
+debug: Running on ionos1-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 Feb 19 11:25 /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/857809/tmp/hooks/D01_modify_environment finished
+I: user script /srv/workspace/pbuilder/857809/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'
-  DEB_BUILD_OPTIONS='buildinfo=+all reproducible=+all parallel=42 '
-  DISTRIBUTION='unstable'
-  HOME='/root'
-  HOST_ARCH='amd64'
+  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=20 '
+  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='43b1caa3a87b4f15a213cfe8b2cca977'
-  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='3272621'
-  PS1='# '
-  PS2='> '
+  INVOCATION_ID=00d1858ad3c44c00822798dc1cbdf39d
+  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=857809
   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.6ObcZq3P/pbuilderrc_qkud --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.6ObcZq3P/b1 --logfile b1/build.log golang-github-tillitis-tkeyutil_0.0.9-1.dsc'
-  SUDO_GID='111'
-  SUDO_UID='106'
-  SUDO_USER='jenkins'
-  TERM='unknown'
-  TZ='/usr/share/zoneinfo/Etc/GMT+12'
-  USER='root'
-  _='/usr/bin/systemd-run'
-  http_proxy='http://213.165.73.152:3128'
+  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.6ObcZq3P/pbuilderrc_VKCU --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.6ObcZq3P/b2 --logfile b2/build.log golang-github-tillitis-tkeyutil_0.0.9-1.dsc'
+  SUDO_GID=110
+  SUDO_UID=105
+  SUDO_USER=jenkins
+  TERM=unknown
+  TZ=/usr/share/zoneinfo/Etc/GMT-14
+  UID=0
+  USER=root
+  _='I: set'
+  http_proxy=http://46.16.76.132:3128
 I: uname -a
-  Linux ionos15-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 6.1.0-31-amd64 #1 SMP PREEMPT_DYNAMIC Debian 6.1.128-1 (2025-02-07) 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/3272621/tmp/hooks/D02_print_environment finished
+  lrwxrwxrwx 1 root root 7 Nov 22 14:40 /bin -> usr/bin
+I: user script /srv/workspace/pbuilder/857809/tmp/hooks/D02_print_environment finished
  -> Attempting to satisfy build-dependencies
  -> Creating pbuilder-satisfydepends-dummy package
 Package: pbuilder-satisfydepends-dummy
@@ -154,7 +186,7 @@
 Get: 39 http://deb.debian.org/debian unstable/main amd64 golang-github-gen2brain-beeep-dev all 0.0~git20240516.9c00667-2 [10.8 kB]
 Get: 40 http://deb.debian.org/debian unstable/main amd64 golang-golang-x-sys-dev all 0.22.0-1 [431 kB]
 Get: 41 http://deb.debian.org/debian unstable/main amd64 golang-golang-x-term-dev all 0.22.0-1 [14.8 kB]
-Fetched 70.1 MB in 1s (83.1 MB/s)
+Fetched 70.1 MB in 1s (72.4 MB/s)
 Preconfiguring packages ...
 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 ... 19798 files and directories currently installed.)
@@ -333,7 +365,11 @@
 Building tag database...
  -> Finished parsing the build-deps
 I: Building the package
-I: Running cd /build/reproducible-path/golang-github-tillitis-tkeyutil-0.0.9/ && 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-tillitis-tkeyutil_0.0.9-1_source.changes
+I: user script /srv/workspace/pbuilder/857809/tmp/hooks/A99_set_merged_usr starting
+Not re-configuring usrmerge for unstable
+I: user script /srv/workspace/pbuilder/857809/tmp/hooks/A99_set_merged_usr finished
+hostname: Name or service not known
+I: Running cd /build/reproducible-path/golang-github-tillitis-tkeyutil-0.0.9/ && 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-tillitis-tkeyutil_0.0.9-1_source.changes
 dpkg-buildpackage: info: source package golang-github-tillitis-tkeyutil
 dpkg-buildpackage: info: source version 0.0.9-1
 dpkg-buildpackage: info: source distribution unstable
@@ -351,119 +387,119 @@
    dh_autoreconf -O--builddirectory=_build -O--buildsystem=golang
    dh_auto_configure -O--builddirectory=_build -O--buildsystem=golang
    dh_auto_build -O--builddirectory=_build -O--buildsystem=golang
-	cd _build && go install -trimpath -v -p 42 github.com/tillitis/tkeyutil
-internal/godebugs
-internal/unsafeheader
-internal/goos
-internal/nettrace
-internal/byteorder
-internal/profilerecord
-math/bits
-internal/coverage/rtcov
-internal/asan
-internal/goexperiment
-internal/goarch
-unicode
-internal/msan
-internal/runtime/atomic
-sync/atomic
+	cd _build && go install -trimpath -v -p 20 github.com/tillitis/tkeyutil
 cmp
-internal/runtime/syscall
-internal/itoa
 crypto/internal/fips140/alias
+internal/itoa
+internal/goarch
+internal/runtime/syscall
+sync/atomic
+unicode
+internal/byteorder
+crypto/internal/boring/sig
 internal/cpu
+internal/unsafeheader
 unicode/utf8
-crypto/internal/boring/sig
-crypto/internal/fips140deps/byteorder
+internal/godebugs
+math/bits
+internal/coverage/rtcov
+crypto/internal/fips140/subtle
 internal/runtime/math
-internal/chacha8rand
 internal/abi
+crypto/internal/fips140deps/byteorder
+internal/profilerecord
+internal/nettrace
+internal/runtime/atomic
+internal/goexperiment
+internal/chacha8rand
+internal/msan
+internal/goos
+internal/asan
 internal/runtime/sys
-crypto/internal/fips140/subtle
-internal/runtime/exithook
 crypto/internal/fips140deps/cpu
 internal/bytealg
 math
+internal/runtime/exithook
 internal/stringslite
 internal/race
-internal/sync
 internal/runtime/maps
+internal/sync
 runtime
 internal/reflectlite
 iter
-crypto/subtle
 sync
+crypto/subtle
 weak
-maps
 slices
-sort
+maps
 errors
+sort
 internal/singleflight
 internal/testlog
 internal/bisect
 unique
-runtime/cgo
 internal/oserror
-io
 path
-strconv
 math/rand/v2
+strconv
+io
+runtime/cgo
 vendor/golang.org/x/net/dns/dnsmessage
-syscall
 internal/godebug
+syscall
+crypto/internal/fips140deps/godebug
+reflect
 crypto/internal/randutil
-hash
-strings
+net/netip
 bytes
-crypto/internal/fips140deps/godebug
+hash
 math/rand
+strings
+internal/syscall/unix
+time
+internal/syscall/execenv
 crypto
-net/netip
-reflect
-crypto/internal/impl
-crypto/internal/fips140
 bufio
+crypto/internal/fips140
+crypto/internal/impl
 crypto/internal/fips140/sha256
-crypto/internal/fips140/sha3
 crypto/internal/fips140/sha512
+crypto/internal/fips140/sha3
 crypto/internal/fips140/hmac
-crypto/internal/fips140/check
-crypto/internal/fips140/aes
-internal/syscall/unix
-internal/syscall/execenv
-time
-context
 io/fs
 internal/poll
+context
+crypto/internal/fips140/check
+crypto/internal/fips140/aes
 internal/filepathlite
 os
 internal/fmtsort
 encoding/binary
-golang.org/x/sys/unix
-io/ioutil
 crypto/internal/sysrand
+io/ioutil
 path/filepath
-fmt
-net
 crypto/internal/entropy
+fmt
 crypto/internal/fips140/drbg
-os/exec
-crypto/internal/fips140/aes/gcm
 crypto/internal/fips140only
+crypto/internal/fips140/aes/gcm
+os/exec
+golang.org/x/sys/unix
 crypto/cipher
-crypto/internal/boring
-crypto/sha1
-math/big
 encoding/hex
+math/big
 net/url
+crypto/internal/boring
+crypto/sha1
 os/user
-golang.org/x/term
+net
 crypto/rand
+golang.org/x/term
 github.com/godbus/dbus
 github.com/gen2brain/beeep
 github.com/tillitis/tkeyutil
    dh_auto_test -O--builddirectory=_build -O--buildsystem=golang
-	cd _build && go test -vet=off -v -p 42 github.com/tillitis/tkeyutil
+	cd _build && go test -vet=off -v -p 20 github.com/tillitis/tkeyutil
 ?   	github.com/tillitis/tkeyutil	[no test files]
    create-stamp debian/debhelper-build-stamp
    dh_testroot -O--builddirectory=_build -O--buildsystem=golang
@@ -491,12 +527,14 @@
 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/857809/tmp/hooks/B01_cleanup starting
+I: user script /srv/workspace/pbuilder/857809/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/3272621 and its subdirectories
-I: Current time: Tue Mar 24 05:48:25 -12 2026
-I: pbuilder-time-stamp: 1774374505
+I: removing directory /srv/workspace/pbuilder/857809 and its subdirectories
+I: Current time: Thu Feb 20 01:27:47 +14 2025
+I: pbuilder-time-stamp: 1739964467