Diff of the two buildlogs:

--
--- b1/build.log	2025-08-19 09:07:14.708481894 +0000
+++ b2/build.log	2025-08-19 09:08:30.020560708 +0000
@@ -1,6 +1,6 @@
 I: pbuilder: network access will be disabled during build
-I: Current time: Mon Aug 18 21:06:22 -12 2025
-I: pbuilder-time-stamp: 1755594382
+I: Current time: Tue Sep 22 05:30:23 +14 2026
+I: pbuilder-time-stamp: 1790004623
 I: Building the build Environment
 I: extracting base tarball [/var/cache/pbuilder/forky-reproducible-base.tgz]
 I: copying local configuration
@@ -22,53 +22,85 @@
 dpkg-source: info: unpacking wego_2.3-2.debian.tar.xz
 I: Not using root during the build.
 I: Installing the build-deps
-I: user script /srv/workspace/pbuilder/2763707/tmp/hooks/D02_print_environment starting
+I: user script /srv/workspace/pbuilder/3292168/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 Sep 21 15:30 /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/3292168/tmp/hooks/D01_modify_environment finished
+I: user script /srv/workspace/pbuilder/3292168/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='forky'
-  HOME='/root'
-  HOST_ARCH='arm64'
+  DIRSTACK=()
+  DISTRIBUTION=forky
+  EUID=0
+  FUNCNAME=([0]="Echo" [1]="main")
+  GROUPS=()
+  HOME=/root
+  HOSTNAME=i-capture-the-hostname
+  HOSTTYPE=aarch64
+  HOST_ARCH=arm64
   IFS=' 	
   '
-  INVOCATION_ID='16665501c8694784a7ad16ab0628ff4f'
-  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='2763707'
-  PS1='# '
-  PS2='> '
+  INVOCATION_ID=ee14a5eb5e4d4055b9fc5a045b2ada29
+  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=3292168
   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.ySucCN0C/pbuilderrc_Pvgj --distribution forky --hookdir /etc/pbuilder/first-build-hooks --debbuildopts -b --basetgz /var/cache/pbuilder/forky-reproducible-base.tgz --buildresult /srv/reproducible-results/rbuild-debian/r-b-build.ySucCN0C/b1 --logfile b1/build.log wego_2.3-2.dsc'
-  SUDO_GID='109'
-  SUDO_HOME='/var/lib/jenkins'
-  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.ySucCN0C/pbuilderrc_qfVD --distribution forky --hookdir /etc/pbuilder/rebuild-hooks --debbuildopts -b --basetgz /var/cache/pbuilder/forky-reproducible-base.tgz --buildresult /srv/reproducible-results/rbuild-debian/r-b-build.ySucCN0C/b2 --logfile b2/build.log wego_2.3-2.dsc'
+  SUDO_GID=109
+  SUDO_HOME=/var/lib/jenkins
+  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 6.12.41+deb13-cloud-arm64 #1 SMP Debian 6.12.41-1 (2025-08-12) aarch64 GNU/Linux
+  Linux i-capture-the-hostname 6.12.41+deb13-cloud-arm64 #1 SMP Debian 6.12.41-1 (2025-08-12) aarch64 GNU/Linux
 I: ls -l /bin
-  lrwxrwxrwx 1 root root 7 Aug 10 12:30 /bin -> usr/bin
-I: user script /srv/workspace/pbuilder/2763707/tmp/hooks/D02_print_environment finished
+  lrwxrwxrwx 1 root root 7 Aug 10  2025 /bin -> usr/bin
+I: user script /srv/workspace/pbuilder/3292168/tmp/hooks/D02_print_environment finished
  -> Attempting to satisfy build-dependencies
  -> Creating pbuilder-satisfydepends-dummy package
 Package: pbuilder-satisfydepends-dummy
@@ -81,7 +113,7 @@
 Depends: debhelper-compat (= 13), dh-sequence-golang, golang-any, golang-github-mattn-go-colorable-dev, golang-github-mattn-go-runewidth-dev, golang-github-schachmat-ingo-dev
 dpkg-deb: building package 'pbuilder-satisfydepends-dummy' in '/tmp/satisfydepends-aptitude/pbuilder-satisfydepends-dummy.deb'.
 Selecting previously unselected package pbuilder-satisfydepends-dummy.
-(Reading database ... 20004 files and directories currently installed.)
+(Reading database ... 20009 files and directories currently installed.)
 Preparing to unpack .../pbuilder-satisfydepends-dummy.deb ...
 Unpacking pbuilder-satisfydepends-dummy (0.invalid.0) ...
 dpkg: pbuilder-satisfydepends-dummy: dependency problems, but configuring anyway as you requested:
@@ -155,10 +187,10 @@
 Get: 39 http://deb.debian.org/debian forky/main arm64 golang-github-rivo-uniseg-dev all 0.4.7-1 [256 kB]
 Get: 40 http://deb.debian.org/debian forky/main arm64 golang-github-mattn-go-runewidth-dev all 0.0.16-1 [16.1 kB]
 Get: 41 http://deb.debian.org/debian forky/main arm64 golang-github-schachmat-ingo-dev all 0.0~git20170403.a4bdc07-2 [5260 B]
-Fetched 57.7 MB in 0s (301 MB/s)
+Fetched 57.7 MB in 0s (180 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 ... 20004 files and directories currently installed.)
+(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 ... 20009 files and directories currently installed.)
 Preparing to unpack .../00-sensible-utils_0.0.25_all.deb ...
 Unpacking sensible-utils (0.0.25) ...
 Selecting previously unselected package libmagic-mgc.
@@ -334,7 +366,11 @@
 Building tag database...
  -> Finished parsing the build-deps
 I: Building the package
-I: Running cd /build/reproducible-path/wego-2.3/ && 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  > ../wego_2.3-2_source.changes
+I: user script /srv/workspace/pbuilder/3292168/tmp/hooks/A99_set_merged_usr starting
+Not re-configuring usrmerge for forky
+I: user script /srv/workspace/pbuilder/3292168/tmp/hooks/A99_set_merged_usr finished
+hostname: Name or service not known
+I: Running cd /build/reproducible-path/wego-2.3/ && 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  > ../wego_2.3-2_source.changes
 dpkg-buildpackage: info: source package wego
 dpkg-buildpackage: info: source version 2.3-2
 dpkg-buildpackage: info: source distribution unstable
@@ -353,113 +389,113 @@
    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 12 github.com/schachmat/wego github.com/schachmat/wego/backends github.com/schachmat/wego/frontends github.com/schachmat/wego/iface
-internal/coverage/rtcov
-encoding
+internal/goos
+internal/msan
 internal/goarch
-internal/byteorder
+encoding
+internal/coverage/rtcov
 internal/unsafeheader
-internal/msan
-internal/cpu
-internal/goexperiment
-internal/profilerecord
-internal/asan
 internal/godebugs
-internal/goos
-internal/runtime/syscall
+internal/asan
+internal/goexperiment
+internal/byteorder
 cmp
+internal/profilerecord
 internal/itoa
-internal/runtime/math
+internal/cpu
 math/bits
 unicode/utf8
-internal/abi
+internal/runtime/syscall
 sync/atomic
-unicode
 crypto/internal/fips140/alias
-crypto/internal/boring/sig
+internal/abi
 internal/chacha8rand
+unicode
+internal/runtime/math
 crypto/internal/fips140deps/byteorder
-unicode/utf16
+crypto/internal/boring/sig
 crypto/internal/fips140/subtle
+unicode/utf16
 log/internal
 container/list
 vendor/golang.org/x/crypto/cryptobyte/asn1
 vendor/golang.org/x/crypto/internal/alias
-internal/nettrace
 math
-internal/runtime/atomic
+github.com/rivo/uniseg
+internal/nettrace
 internal/bytealg
 internal/runtime/sys
 crypto/internal/fips140deps/cpu
-github.com/rivo/uniseg
-internal/stringslite
+internal/runtime/atomic
 internal/runtime/exithook
+internal/stringslite
 internal/race
 internal/sync
 internal/runtime/maps
 runtime
-internal/reflectlite
 iter
 crypto/subtle
 weak
 sync
-maps
+internal/reflectlite
 slices
+maps
 errors
 sort
-internal/bisect
-internal/testlog
-internal/singleflight
-unique
-runtime/cgo
-io
+strconv
 internal/oserror
 path
 math/rand/v2
 vendor/golang.org/x/net/dns/dnsmessage
-strconv
+io
+internal/bisect
+internal/singleflight
+unique
+internal/testlog
+runtime/cgo
 syscall
 internal/godebug
-bytes
-hash
-crypto/internal/randutil
 strings
+crypto/internal/randutil
+hash
+bytes
 crypto/internal/fips140deps/godebug
-crypto
-reflect
 hash/crc32
-math/rand
+crypto
 net/netip
+math/rand
+reflect
 vendor/golang.org/x/text/transform
+bufio
 crypto/internal/fips140
-crypto/internal/impl
 net/http/internal/ascii
+crypto/internal/impl
 regexp/syntax
-bufio
-crypto/internal/fips140/sha3
-crypto/tls/internal/fips140tls
 crypto/internal/fips140/sha256
+crypto/internal/fips140/sha3
 crypto/internal/fips140/sha512
-crypto/sha3
-crypto/internal/fips140/hmac
-time
+crypto/tls/internal/fips140tls
 internal/syscall/execenv
 internal/syscall/unix
-crypto/internal/fips140hash
+time
+crypto/sha3
+crypto/internal/fips140/hmac
 crypto/internal/fips140/check
-crypto/internal/fips140/aes
-crypto/internal/fips140/edwards25519/field
+crypto/internal/fips140hash
+crypto/internal/fips140/nistec/fiat
 crypto/internal/fips140/bigmod
+crypto/internal/fips140/aes
 crypto/internal/fips140/hkdf
 crypto/internal/fips140/tls12
-crypto/internal/fips140/nistec/fiat
+crypto/internal/fips140/edwards25519/field
 crypto/internal/fips140/tls13
 regexp
 crypto/internal/fips140/edwards25519
-context
 io/fs
 internal/poll
-internal/filepathlite
+context
 crypto/internal/fips140/nistec
+internal/filepathlite
 os
 internal/fmtsort
 encoding/binary
@@ -469,67 +505,67 @@
 encoding/pem
 fmt
 path/filepath
-github.com/mattn/go-runewidth
 crypto/internal/sysrand
+github.com/mattn/go-runewidth
 net
 crypto/internal/entropy
 crypto/internal/fips140/drbg
-crypto/internal/fips140/aes/gcm
-crypto/internal/fips140/ecdsa
-crypto/internal/fips140/ed25519
-crypto/internal/fips140/mlkem
+crypto/internal/fips140only
 crypto/internal/fips140/rsa
 crypto/internal/fips140/ecdh
-crypto/internal/fips140only
+crypto/internal/fips140/ed25519
+crypto/internal/fips140/ecdsa
+crypto/internal/fips140/aes/gcm
+crypto/internal/fips140/mlkem
 crypto/rc4
 crypto/md5
 crypto/cipher
-vendor/golang.org/x/crypto/chacha20
-crypto/des
 crypto/internal/boring
+crypto/des
+vendor/golang.org/x/crypto/chacha20
+crypto/sha512
 crypto/aes
 crypto/ecdh
 crypto/hmac
-crypto/sha512
 crypto/sha1
 crypto/sha256
-os/user
+vendor/golang.org/x/crypto/chacha20poly1305
 flag
 encoding/json
+os/user
 log
 compress/flate
-math/big
 encoding/hex
-vendor/golang.org/x/crypto/chacha20poly1305
+math/big
 net/url
 vendor/golang.org/x/text/unicode/norm
 vendor/golang.org/x/net/http2/hpack
-github.com/schachmat/wego/iface
-vendor/golang.org/x/text/unicode/bidi
 mime
 mime/quotedprintable
+github.com/schachmat/wego/iface
+vendor/golang.org/x/text/unicode/bidi
 net/http/internal
 compress/gzip
 vendor/golang.org/x/text/secure/bidirule
-vendor/golang.org/x/net/idna
 github.com/mattn/go-isatty
 github.com/mattn/go-colorable
+vendor/golang.org/x/net/idna
+github.com/schachmat/wego/frontends
 crypto/rand
-crypto/internal/boring/bbig
-crypto/elliptic
 crypto/dsa
 encoding/asn1
+crypto/elliptic
+crypto/internal/boring/bbig
 crypto/ed25519
 crypto/internal/hpke
 crypto/rsa
-github.com/schachmat/wego/frontends
 vendor/golang.org/x/crypto/cryptobyte
 crypto/x509/pkix
 github.com/schachmat/ingo
 crypto/ecdsa
 net/textproto
-vendor/golang.org/x/net/http/httpproxy
 crypto/x509
+vendor/golang.org/x/net/http/httpproxy
 vendor/golang.org/x/net/http/httpguts
 mime/multipart
 crypto/tls
@@ -571,8 +607,8 @@
 dpkg-gencontrol: warning: package wego: substitution variable ${misc:Static-Built-Using} unused, but is defined
    dh_md5sums -O--builddirectory=_build -O--buildsystem=golang
    dh_builddeb -O--builddirectory=_build -O--buildsystem=golang
-dpkg-deb: building package 'wego' in '../wego_2.3-2_arm64.deb'.
 dpkg-deb: building package 'wego-dbgsym' in '../wego-dbgsym_2.3-2_arm64.deb'.
+dpkg-deb: building package 'wego' in '../wego_2.3-2_arm64.deb'.
  dpkg-genbuildinfo --build=binary -O../wego_2.3-2_arm64.buildinfo
  dpkg-genchanges --build=binary -O../wego_2.3-2_arm64.changes
 dpkg-genchanges: info: binary-only upload (no source code included)
@@ -580,12 +616,14 @@
 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/3292168/tmp/hooks/B01_cleanup starting
+I: user script /srv/workspace/pbuilder/3292168/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/2763707 and its subdirectories
-I: Current time: Mon Aug 18 21:07:13 -12 2025
-I: pbuilder-time-stamp: 1755594433
+I: removing directory /srv/workspace/pbuilder/3292168 and its subdirectories
+I: Current time: Tue Sep 22 05:31:28 +14 2026
+I: pbuilder-time-stamp: 1790004688