Diff of the two buildlogs:

--
--- b1/build.log	2024-12-28 12:23:12.500578313 +0000
+++ b2/build.log	2024-12-28 12:25:01.383632877 +0000
@@ -1,6 +1,6 @@
 I: pbuilder: network access will be disabled during build
-I: Current time: Sat Dec 28 00:20:46 -12 2024
-I: pbuilder-time-stamp: 1735388446
+I: Current time: Sat Jan 31 08:46:16 +14 2026
+I: pbuilder-time-stamp: 1769798776
 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 nats-server_2.10.24-1.debian.tar.xz
 I: Not using root during the build.
 I: Installing the build-deps
-I: user script /srv/workspace/pbuilder/513263/tmp/hooks/D02_print_environment starting
+I: user script /srv/workspace/pbuilder/224396/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 Jan 30 18:46 /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/224396/tmp/hooks/D01_modify_environment finished
+I: user script /srv/workspace/pbuilder/224396/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='20e9c333d933493a802067baf20d92d9'
-  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='513263'
-  PS1='# '
-  PS2='> '
+  INVOCATION_ID=dbe569b266e240bbbc8a4e7fe6933c4e
+  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=224396
   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.IJmfpXkY/pbuilderrc_MHSa --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.IJmfpXkY/b1 --logfile b1/build.log nats-server_2.10.24-1.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.IJmfpXkY/pbuilderrc_B7IV --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.IJmfpXkY/b2 --logfile b2/build.log nats-server_2.10.24-1.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 codethink04-arm64 6.1.0-28-cloud-arm64 #1 SMP Debian 6.1.119-1 (2024-11-22) aarch64 GNU/Linux
+  Linux i-capture-the-hostname 6.1.0-28-cloud-arm64 #1 SMP Debian 6.1.119-1 (2024-11-22) aarch64 GNU/Linux
 I: ls -l /bin
-  lrwxrwxrwx 1 root root 7 Nov 22 14:40 /bin -> usr/bin
-I: user script /srv/workspace/pbuilder/513263/tmp/hooks/D02_print_environment finished
+  lrwxrwxrwx 1 root root 7 Nov 22  2024 /bin -> usr/bin
+I: user script /srv/workspace/pbuilder/224396/tmp/hooks/D02_print_environment finished
  -> Attempting to satisfy build-dependencies
  -> Creating pbuilder-satisfydepends-dummy package
 Package: pbuilder-satisfydepends-dummy
@@ -187,7 +219,7 @@
 Get: 54 http://deb.debian.org/debian trixie/main arm64 golang-github-stretchr-testify-dev all 1.9.0-1 [74.7 kB]
 Get: 55 http://deb.debian.org/debian trixie/main arm64 golang-golang-x-time-dev all 0.5.0-1 [12.9 kB]
 Get: 56 http://deb.debian.org/debian trixie/main arm64 golang-uber-automaxprocs-dev all 1.5.3-1 [22.3 kB]
-Fetched 103 MB in 1s (117 MB/s)
+Fetched 103 MB in 1s (195 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 ... 20081 files and directories currently installed.)
@@ -426,7 +458,11 @@
 Building tag database...
  -> Finished parsing the build-deps
 I: Building the package
-I: Running cd /build/reproducible-path/nats-server-2.10.24/ && 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  > ../nats-server_2.10.24-1_source.changes
+I: user script /srv/workspace/pbuilder/224396/tmp/hooks/A99_set_merged_usr starting
+Not re-configuring usrmerge for trixie
+I: user script /srv/workspace/pbuilder/224396/tmp/hooks/A99_set_merged_usr finished
+hostname: Name or service not known
+I: Running cd /build/reproducible-path/nats-server-2.10.24/ && 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  > ../nats-server_2.10.24-1_source.changes
 dpkg-buildpackage: info: source package nats-server
 dpkg-buildpackage: info: source version 2.10.24-1
 dpkg-buildpackage: info: source distribution unstable
@@ -445,46 +481,46 @@
    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/nats-io/nats-server github.com/nats-io/nats-server/conf github.com/nats-io/nats-server/internal/fastrand github.com/nats-io/nats-server/internal/ldap github.com/nats-io/nats-server/internal/ocsp github.com/nats-io/nats-server/internal/testhelper github.com/nats-io/nats-server/logger github.com/nats-io/nats-server/server github.com/nats-io/nats-server/server/avl github.com/nats-io/nats-server/server/certidp github.com/nats-io/nats-server/server/certstore github.com/nats-io/nats-server/server/pse github.com/nats-io/nats-server/server/stree github.com/nats-io/nats-server/server/sysmem github.com/nats-io/nats-server/test
+encoding
 cmp
-internal/byteorder
+internal/goarch
 internal/coverage/rtcov
-internal/unsafeheader
-encoding
 internal/godebugs
-internal/goos
-internal/goarch
+internal/byteorder
+internal/unsafeheader
 internal/profilerecord
 internal/itoa
-internal/race
-internal/goexperiment
+internal/runtime/syscall
 internal/cpu
+internal/race
 math/bits
+internal/goos
 unicode/utf8
 sync/atomic
 unicode
 internal/asan
 internal/msan
-internal/runtime/syscall
+internal/goexperiment
 container/list
-crypto/internal/alias
 internal/abi
 internal/chacha8rand
 runtime/internal/math
 runtime/internal/sys
+crypto/internal/alias
 crypto/subtle
 crypto/internal/boring/sig
 unicode/utf16
+math
 vendor/golang.org/x/crypto/cryptobyte/asn1
 vendor/golang.org/x/crypto/internal/alias
-math
 internal/nettrace
 log/internal
 github.com/klauspost/compress/internal/race
 golang.org/x/crypto/internal/alias
 golang.org/x/crypto/salsa20/salsa
-github.com/nats-io/nats-server/internal/fastrand
 internal/bytealg
 internal/runtime/atomic
+github.com/nats-io/nats-server/internal/fastrand
 internal/runtime/exithook
 internal/stringslite
 runtime
@@ -500,42 +536,42 @@
 errors
 sort
 runtime/cgo
-internal/godebug
 strconv
 io
-crypto/internal/nistec/fiat
 internal/oserror
 path
+internal/godebug
 crypto/internal/edwards25519/field
+crypto/internal/nistec/fiat
 vendor/golang.org/x/net/dns/dnsmessage
 math/rand/v2
 syscall
-math/rand
-reflect
+container/heap
 strings
 bytes
+math/rand
 hash
-container/heap
+reflect
+crypto/internal/edwards25519
+internal/concurrent
 crypto/internal/randutil
 hash/crc32
 crypto
 crypto/rc4
-crypto/internal/edwards25519
-internal/concurrent
-encoding/base32
-crypto/md5
 unique
-golang.org/x/crypto/blowfish
+encoding/base32
 crypto/cipher
 vendor/golang.org/x/text/transform
+crypto/md5
+golang.org/x/crypto/blowfish
 hash/fnv
 bufio
 net/http/internal/ascii
 regexp/syntax
 html
-net/netip
 crypto/internal/boring
 crypto/des
+net/netip
 crypto/aes
 crypto/hmac
 crypto/sha1
@@ -547,15 +583,15 @@
 internal/syscall/execenv
 github.com/nats-io/nats-server/server/sysmem
 regexp
-io/fs
 internal/poll
 context
+io/fs
+internal/fmtsort
+encoding/binary
 internal/filepathlite
 embed
 crypto/internal/nistec
 os
-internal/fmtsort
-encoding/binary
 vendor/golang.org/x/crypto/chacha20
 vendor/golang.org/x/crypto/internal/poly1305
 encoding/base64
@@ -564,63 +600,63 @@
 golang.org/x/crypto/internal/poly1305
 github.com/nats-io/nats-server/server/avl
 golang.org/x/crypto/chacha20
-crypto/ecdh
-golang.org/x/crypto/nacl/secretbox
 encoding/pem
+golang.org/x/crypto/nacl/secretbox
+golang.org/x/crypto/chacha20poly1305
 vendor/golang.org/x/crypto/chacha20poly1305
+crypto/ecdh
+golang.org/x/crypto/curve25519
 fmt
+io/ioutil
+os/signal
 path/filepath
 vendor/golang.org/x/sys/cpu
-io/ioutil
 net
-os/signal
 internal/sysinfo
-golang.org/x/crypto/chacha20poly1305
-golang.org/x/crypto/curve25519
 os/exec
 vendor/golang.org/x/crypto/sha3
 flag
 os/user
 compress/flate
-encoding/hex
 math/big
+encoding/hex
 encoding/json
-net/url
 log
+net/url
 vendor/golang.org/x/net/http2/hpack
-mime
 vendor/golang.org/x/text/unicode/norm
+mime
 mime/quotedprintable
+vendor/golang.org/x/text/unicode/bidi
 net/http/internal
 github.com/nats-io/nats-server/conf
-vendor/golang.org/x/text/unicode/bidi
 github.com/nats-io/nats-server/server/pse
+compress/gzip
+github.com/klauspost/compress/flate
 github.com/nats-io/nats-server/server/stree
 golang.org/x/time/rate
+internal/profile
 text/tabwriter
 runtime/trace
-compress/gzip
-github.com/klauspost/compress/flate
 runtime/debug
+vendor/golang.org/x/text/secure/bidirule
 go.uber.org/automaxprocs/internal/cgroups
-internal/profile
 runtime/pprof
 go.uber.org/automaxprocs/internal/runtime
 go.uber.org/automaxprocs/maxprocs
-vendor/golang.org/x/text/secure/bidirule
 testing
 vendor/golang.org/x/net/idna
 crypto/rand
 crypto/elliptic
 crypto/internal/bigmod
 crypto/internal/boring/bbig
-crypto/dsa
 encoding/asn1
+crypto/dsa
 crypto/ed25519
-crypto/internal/hpke
-crypto/internal/mlkem768
 github.com/klauspost/compress/s2
+crypto/internal/hpke
 golang.org/x/crypto/nacl/box
+crypto/internal/mlkem768
 github.com/nats-io/nuid
 golang.org/x/crypto/bcrypt
 github.com/nats-io/nkeys
@@ -629,11 +665,11 @@
 vendor/golang.org/x/crypto/cryptobyte
 crypto/x509/pkix
 github.com/nats-io/nats-server/internal/ldap
-archive/tar
 crypto/ecdsa
+archive/tar
 crypto/x509
-vendor/golang.org/x/net/http/httpproxy
 net/textproto
+vendor/golang.org/x/net/http/httpproxy
 github.com/nats-io/jwt/v2
 log/syslog
 github.com/nats-io/nats-server/logger
@@ -641,8 +677,8 @@
 mime/multipart
 crypto/tls
 golang.org/x/crypto/ocsp
-github.com/nats-io/nats-server/server/certstore
 net/http/httptrace
+github.com/nats-io/nats-server/server/certstore
 net/http
 expvar
 github.com/nats-io/nats-server/server/certidp
@@ -679,8 +715,8 @@
    dh_md5sums -O--builddirectory=_build -O--buildsystem=golang
    dh_builddeb -O--builddirectory=_build -O--buildsystem=golang
 dpkg-deb: building package 'nats-server-dbgsym' in '../nats-server-dbgsym_2.10.24-1_arm64.deb'.
-dpkg-deb: building package 'golang-github-nats-io-nats-server-dev' in '../golang-github-nats-io-nats-server-dev_2.10.24-1_all.deb'.
 dpkg-deb: building package 'nats-server' in '../nats-server_2.10.24-1_arm64.deb'.
+dpkg-deb: building package 'golang-github-nats-io-nats-server-dev' in '../golang-github-nats-io-nats-server-dev_2.10.24-1_all.deb'.
  dpkg-genbuildinfo --build=binary -O../nats-server_2.10.24-1_arm64.buildinfo
  dpkg-genchanges --build=binary -O../nats-server_2.10.24-1_arm64.changes
 dpkg-genchanges: info: binary-only upload (no source code included)
@@ -688,12 +724,14 @@
 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/224396/tmp/hooks/B01_cleanup starting
+I: user script /srv/workspace/pbuilder/224396/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/513263 and its subdirectories
-I: Current time: Sat Dec 28 00:23:09 -12 2024
-I: pbuilder-time-stamp: 1735388589
+I: removing directory /srv/workspace/pbuilder/224396 and its subdirectories
+I: Current time: Sat Jan 31 08:48:00 +14 2026
+I: pbuilder-time-stamp: 1769798880