Diff of the two buildlogs:

--
--- b1/build.log	2024-10-20 17:52:40.318237041 +0000
+++ b2/build.log	2024-10-20 17:57:01.268954355 +0000
@@ -1,6 +1,6 @@
 I: pbuilder: network access will be disabled during build
-I: Current time: Sat Nov 22 12:13:47 -12 2025
-I: pbuilder-time-stamp: 1763856827
+I: Current time: Mon Oct 21 07:52:44 +14 2024
+I: pbuilder-time-stamp: 1729446764
 I: Building the build Environment
 I: extracting base tarball [/var/cache/pbuilder/trixie-reproducible-base.tgz]
 I: copying local configuration
@@ -27,52 +27,84 @@
 dpkg-source: info: applying reproducible_man.patch
 I: Not using root during the build.
 I: Installing the build-deps
-I: user script /srv/workspace/pbuilder/1636550/tmp/hooks/D02_print_environment starting
+I: user script /srv/workspace/pbuilder/845000/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 Oct 20 17:53 /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/845000/tmp/hooks/D01_modify_environment finished
+I: user script /srv/workspace/pbuilder/845000/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='trixie'
-  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]="32" [3]="1" [4]="release" [5]="x86_64-pc-linux-gnu")
+  BASH_VERSION='5.2.32(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=trixie
+  EUID=0
+  FUNCNAME=([0]="Echo" [1]="main")
+  GROUPS=()
+  HOME=/root
+  HOSTNAME=i-capture-the-hostname
+  HOSTTYPE=x86_64
+  HOST_ARCH=amd64
   IFS=' 	
   '
-  INVOCATION_ID='0bfa631ac59a4e30bd74a231346e0165'
-  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='1636550'
-  PS1='# '
-  PS2='> '
+  INVOCATION_ID=28e70a12556f452fb98894b1786bd957
+  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=845000
   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.bT0dNVpN/pbuilderrc_stcz --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.bT0dNVpN/b1 --logfile b1/build.log slinkwatch_1.1-6.dsc'
-  SUDO_GID='110'
-  SUDO_UID='105'
-  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.bT0dNVpN/pbuilderrc_Z26Z --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.bT0dNVpN/b2 --logfile b2/build.log slinkwatch_1.1-6.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 ionos5-amd64 6.10.11+bpo-amd64 #1 SMP PREEMPT_DYNAMIC Debian 6.10.11-1~bpo12+1 (2024-10-03) x86_64 GNU/Linux
+  Linux i-capture-the-hostname 6.1.0-26-amd64 #1 SMP PREEMPT_DYNAMIC Debian 6.1.112-1 (2024-09-30) x86_64 GNU/Linux
 I: ls -l /bin
-  lrwxrwxrwx 1 root root 7 Aug  4  2024 /bin -> usr/bin
-I: user script /srv/workspace/pbuilder/1636550/tmp/hooks/D02_print_environment finished
+  lrwxrwxrwx 1 root root 7 Aug  4 21:30 /bin -> usr/bin
+I: user script /srv/workspace/pbuilder/845000/tmp/hooks/D02_print_environment finished
  -> Attempting to satisfy build-dependencies
  -> Creating pbuilder-satisfydepends-dummy package
 Package: pbuilder-satisfydepends-dummy
@@ -200,7 +232,7 @@
 Get: 72 http://deb.debian.org/debian trixie/main amd64 golang-gopkg-ini.v1-dev all 1.67.0-1 [39.9 kB]
 Get: 73 http://deb.debian.org/debian trixie/main amd64 golang-github-spf13-viper-dev all 1.12.0-1 [68.9 kB]
 Get: 74 http://deb.debian.org/debian trixie/main amd64 golang-github-spf13-cobra-dev all 1.8.1-1 [75.2 kB]
-Fetched 75.7 MB in 2s (41.4 MB/s)
+Fetched 75.7 MB in 4s (17.7 MB/s)
 debconf: delaying package configuration, since apt-utils is not installed
 Selecting previously unselected package golang-golang-x-sys-dev.
 (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 ... 19799 files and directories currently installed.)
@@ -511,7 +543,11 @@
 Building tag database...
  -> Finished parsing the build-deps
 I: Building the package
-I: Running cd /build/reproducible-path/slinkwatch-1.1/ && 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  > ../slinkwatch_1.1-6_source.changes
+I: user script /srv/workspace/pbuilder/845000/tmp/hooks/A99_set_merged_usr starting
+Not re-configuring usrmerge for trixie
+I: user script /srv/workspace/pbuilder/845000/tmp/hooks/A99_set_merged_usr finished
+hostname: Name or service not known
+I: Running cd /build/reproducible-path/slinkwatch-1.1/ && 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  > ../slinkwatch_1.1-6_source.changes
 dpkg-buildpackage: info: source package slinkwatch
 dpkg-buildpackage: info: source version 1.1-6
 dpkg-buildpackage: info: source distribution unstable
@@ -535,208 +571,208 @@
    debian/rules override_dh_auto_build
 make[1]: Entering directory '/build/reproducible-path/slinkwatch-1.1'
 dh_auto_build
-	cd obj-x86_64-linux-gnu && go install -trimpath -v -p 42 github.com/DCSO/slinkwatch github.com/DCSO/slinkwatch/cmd/slinkwatch github.com/DCSO/slinkwatch/cmd/slinkwatch/cmds
-vendor/golang.org/x/crypto/internal/alias
-vendor/golang.org/x/crypto/cryptobyte/asn1
-github.com/shirou/gopsutil/common
-internal/race
-internal/goarch
+	cd obj-x86_64-linux-gnu && go install -trimpath -v -p 20 github.com/DCSO/slinkwatch github.com/DCSO/slinkwatch/cmd/slinkwatch github.com/DCSO/slinkwatch/cmd/slinkwatch/cmds
 internal/godebugs
-internal/nettrace
-internal/msan
-internal/asan
-crypto/internal/alias
-log/internal
+internal/profilerecord
 internal/byteorder
-internal/unsafeheader
 internal/goos
-unicode/utf16
-unicode
-encoding
-internal/goexperiment
-internal/coverage/rtcov
-container/list
-math/bits
-crypto/subtle
-internal/itoa
-crypto/internal/boring/sig
-internal/runtime/syscall
+internal/unsafeheader
 unicode/utf8
-internal/runtime/atomic
+internal/goarch
 cmp
-internal/profilerecord
+internal/itoa
+internal/coverage/rtcov
+internal/goexperiment
+internal/asan
+internal/msan
+math/bits
+unicode
+internal/race
 internal/cpu
+internal/runtime/syscall
 sync/atomic
-runtime/internal/math
+internal/runtime/atomic
+crypto/internal/alias
+crypto/subtle
+crypto/internal/boring/sig
+log/internal
+encoding
+internal/nettrace
 internal/abi
+runtime/internal/math
 runtime/internal/sys
 internal/chacha8rand
+unicode/utf16
+github.com/shirou/gopsutil/common
+container/list
+vendor/golang.org/x/crypto/cryptobyte/asn1
+vendor/golang.org/x/crypto/internal/alias
 github.com/pelletier/go-toml/v2/internal/characters
 internal/bytealg
 math
 internal/runtime/exithook
 internal/stringslite
 runtime
-internal/weak
-iter
 internal/reflectlite
+iter
 sync
-maps
+internal/weak
 slices
+maps
 internal/testlog
-internal/singleflight
 internal/bisect
+internal/singleflight
 github.com/spf13/viper/internal/encoding
 runtime/cgo
 errors
 sort
 io
-internal/oserror
-github.com/hashicorp/hcl/hcl/strconv
-internal/godebug
-path
 strconv
-math/rand/v2
 vendor/golang.org/x/net/dns/dnsmessage
+math/rand/v2
+internal/oserror
 crypto/internal/edwards25519/field
+github.com/hashicorp/hcl/hcl/strconv
+path
+internal/godebug
 crypto/internal/nistec/fiat
-math/rand
-syscall
-internal/concurrent
 crypto/internal/randutil
-hash
 bytes
-crypto/internal/edwards25519
+hash
 strings
+syscall
+crypto/internal/edwards25519
+internal/concurrent
+math/rand
 hash/crc32
 unique
-crypto/rc4
 crypto
+crypto/rc4
 reflect
+crypto/md5
+net/netip
+crypto/cipher
 golang.org/x/text/transform
 vendor/golang.org/x/text/transform
-crypto/cipher
-net/http/internal/ascii
 bufio
-net/netip
-html
-crypto/md5
+net/http/internal/ascii
 regexp/syntax
+html
 golang.org/x/text/runes
-crypto/internal/boring
 crypto/des
+crypto/internal/boring
 crypto/sha1
-crypto/hmac
 crypto/sha512
-crypto/sha256
 crypto/aes
+crypto/hmac
+crypto/sha256
 vendor/golang.org/x/crypto/hkdf
 regexp
-internal/syscall/execenv
-time
 internal/syscall/unix
+time
+internal/syscall/execenv
+internal/fmtsort
+encoding/binary
+encoding/base64
+vendor/golang.org/x/crypto/internal/poly1305
+vendor/golang.org/x/crypto/chacha20
 io/fs
-context
 internal/poll
+context
+golang.org/x/sys/unix
+encoding/pem
 internal/filepathlite
-github.com/spf13/afero/internal/common
 embed
-internal/fmtsort
-encoding/binary
+github.com/spf13/afero/internal/common
 crypto/internal/nistec
 os
-encoding/base64
-vendor/golang.org/x/crypto/chacha20
-vendor/golang.org/x/crypto/internal/poly1305
-golang.org/x/sys/unix
 crypto/ecdh
-encoding/pem
 io/ioutil
 fmt
 path/filepath
 os/signal
 vendor/golang.org/x/sys/cpu
 net
-vendor/golang.org/x/crypto/sha3
-vendor/golang.org/x/crypto/chacha20poly1305
 github.com/spf13/afero/mem
 os/exec
-log
-github.com/coreos/go-systemd/internal/dlopen
+vendor/golang.org/x/crypto/chacha20poly1305
+vendor/golang.org/x/crypto/sha3
+encoding/hex
+net/url
 flag
+os/user
+github.com/coreos/go-systemd/internal/dlopen
+log
+encoding/json
 github.com/ryanuber/columnize
 encoding/csv
-encoding/hex
-net/http/internal
-mime/quotedprintable
-github.com/subosito/gotenv
-encoding/json
-mime
-github.com/hashicorp/hcl/hcl/token
-vendor/golang.org/x/net/http2/hpack
 text/template/parse
+math/big
+gopkg.in/yaml.v2
 github.com/russross/blackfriday/v2
-gopkg.in/ini.v1
+golang.org/x/text/unicode/norm
 gopkg.in/yaml.v3
-gopkg.in/yaml.v2
+compress/flate
 vendor/golang.org/x/text/unicode/norm
-math/big
+vendor/golang.org/x/net/http2/hpack
+mime
+mime/quotedprintable
+net/http/internal
+github.com/subosito/gotenv
+github.com/fsnotify/fsnotify
+github.com/hashicorp/hcl/hcl/token
 text/tabwriter
-github.com/pelletier/go-toml/v2/internal/danger
-os/user
-net/url
-compress/flate
-golang.org/x/text/unicode/norm
+github.com/shirou/gopsutil/internal/common
+gopkg.in/ini.v1
 github.com/hashicorp/hcl/hcl/ast
 github.com/hashicorp/hcl/hcl/scanner
+vendor/golang.org/x/text/unicode/bidi
+github.com/spf13/jwalterweatherman
 github.com/hashicorp/hcl/json/token
-github.com/pelletier/go-toml/v2/unstable
+compress/gzip
+github.com/pelletier/go-toml/v2/internal/danger
+github.com/cpuguy83/go-md2man/v2/md2man
+github.com/sirupsen/logrus
+github.com/spf13/viper/internal/encoding/json
 github.com/hashicorp/hcl/json/scanner
+text/template
+github.com/pelletier/go-toml/v2/unstable
 github.com/hashicorp/hcl/hcl/parser
-github.com/spf13/jwalterweatherman
-vendor/golang.org/x/text/unicode/bidi
+github.com/spf13/viper/internal/encoding/yaml
 github.com/hashicorp/hcl/json/parser
-github.com/shirou/gopsutil/internal/common
-github.com/hashicorp/hcl/hcl/printer
-github.com/hashicorp/hcl
-compress/gzip
 github.com/pelletier/go-toml/v2/internal/tracker
 vendor/golang.org/x/text/secure/bidirule
-text/template
-github.com/cpuguy83/go-md2man/v2/md2man
-vendor/golang.org/x/net/idna
-github.com/spf13/viper/internal/encoding/hcl
-github.com/spf13/viper/internal/encoding/json
-github.com/pelletier/go-toml/v2
-github.com/fsnotify/fsnotify
-github.com/sirupsen/logrus
-github.com/spf13/viper/internal/encoding/yaml
-crypto/internal/boring/bbig
+github.com/hashicorp/hcl
+github.com/hashicorp/hcl/hcl/printer
 crypto/rand
 crypto/elliptic
-crypto/dsa
+crypto/internal/boring/bbig
 crypto/internal/bigmod
+crypto/dsa
 encoding/asn1
-html/template
-github.com/spf13/viper/internal/encoding/toml
+vendor/golang.org/x/net/idna
 crypto/ed25519
-crypto/internal/mlkem768
 crypto/internal/hpke
-crypto/rsa
-crypto/x509/pkix
+crypto/internal/mlkem768
+github.com/pelletier/go-toml/v2
+github.com/spf13/viper/internal/encoding/hcl
+html/template
+github.com/spf13/viper/internal/encoding/toml
 vendor/golang.org/x/crypto/cryptobyte
-crypto/ecdsa
+crypto/x509/pkix
+crypto/rsa
 github.com/spf13/cast
+crypto/ecdsa
 github.com/spf13/viper/internal/encoding/dotenv
 github.com/spf13/viper/internal/encoding/ini
 github.com/coreos/go-systemd/util
-vendor/golang.org/x/net/http/httpproxy
 github.com/shirou/gopsutil/net
 github.com/mitchellh/mapstructure
 net/textproto
-crypto/x509
-github.com/godbus/dbus
 github.com/spf13/pflag
+vendor/golang.org/x/net/http/httpproxy
+github.com/godbus/dbus
+crypto/x509
 vendor/golang.org/x/net/http/httpguts
 mime/multipart
 github.com/satta/ifplugo
@@ -747,8 +783,8 @@
 github.com/DCSO/slinkwatch
 net/http/httptrace
 net/http
-github.com/spf13/afero
 github.com/magiconair/properties
+github.com/spf13/afero
 github.com/spf13/viper/internal/encoding/javaproperties
 github.com/spf13/viper
 github.com/DCSO/slinkwatch/cmd/slinkwatch/cmds
@@ -757,7 +793,7 @@
 find . -executable -wholename '*bin/slinkwatch' -exec {} makeman --dir debian/man \;
 make[1]: Leaving directory '/build/reproducible-path/slinkwatch-1.1'
    dh_auto_test -O--buildsystem=golang
-	cd obj-x86_64-linux-gnu && go test -vet=off -v -p 42 github.com/DCSO/slinkwatch github.com/DCSO/slinkwatch/cmd/slinkwatch github.com/DCSO/slinkwatch/cmd/slinkwatch/cmds
+	cd obj-x86_64-linux-gnu && go test -vet=off -v -p 20 github.com/DCSO/slinkwatch github.com/DCSO/slinkwatch/cmd/slinkwatch github.com/DCSO/slinkwatch/cmd/slinkwatch/cmds
 === RUN   TestActiveSetEmptyIfaces
 --- PASS: TestActiveSetEmptyIfaces (0.00s)
 === RUN   TestActiveSetNoMatchConfig
@@ -777,14 +813,14 @@
 === RUN   TestActiveSetConfigFileToYAML
 --- PASS: TestActiveSetConfigFileToYAML (0.00s)
 === RUN   TestConfigLoad
---- PASS: TestConfigLoad (0.01s)
+--- PASS: TestConfigLoad (0.00s)
 === RUN   TestConfigLoadFail
 --- PASS: TestConfigLoadFail (0.00s)
 === RUN   TestRestartManager
-time="2025-11-23T00:15:22Z" level=info msg="Not running systemd, will rely on restart command"
+time="2024-10-20T17:56:33Z" level=info msg="Not running systemd, will rely on restart command"
 --- PASS: TestRestartManager (0.00s)
 PASS
-ok  	github.com/DCSO/slinkwatch	0.060s
+ok  	github.com/DCSO/slinkwatch	0.011s
 ?   	github.com/DCSO/slinkwatch/cmd/slinkwatch	[no test files]
 ?   	github.com/DCSO/slinkwatch/cmd/slinkwatch/cmds	[no test files]
    create-stamp debian/debhelper-build-stamp
@@ -831,12 +867,14 @@
 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/845000/tmp/hooks/B01_cleanup starting
+I: user script /srv/workspace/pbuilder/845000/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/1636550 and its subdirectories
-I: Current time: Sat Nov 22 12:15:35 -12 2025
-I: pbuilder-time-stamp: 1763856935
+I: removing directory /srv/workspace/pbuilder/845000 and its subdirectories
+I: Current time: Mon Oct 21 07:57:00 +14 2024
+I: pbuilder-time-stamp: 1729447020