Diff of the two buildlogs:

--
--- b1/build.log	2024-04-27 16:44:40.895975369 +0000
+++ b2/build.log	2024-04-27 16:45:21.442245691 +0000
@@ -1,6 +1,6 @@
 I: pbuilder: network access will be disabled during build
-I: Current time: Sat Apr 27 04:43:48 -12 2024
-I: pbuilder-time-stamp: 1714236228
+I: Current time: Sat May 31 13:07:42 +14 2025
+I: pbuilder-time-stamp: 1748646462
 I: Building the build Environment
 I: extracting base tarball [/var/cache/pbuilder/unstable-reproducible-base.tgz]
 I: copying local configuration
@@ -28,54 +28,86 @@
 dpkg-source: info: applying auto-gitignore
 I: Not using root during the build.
 I: Installing the build-deps
-I: user script /srv/workspace/pbuilder/54091/tmp/hooks/D02_print_environment starting
+I: user script /srv/workspace/pbuilder/117999/tmp/hooks/D01_modify_environment starting
+debug: Running on ionos16-i386.
+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 May 30 23:07 /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/117999/tmp/hooks/D01_modify_environment finished
+I: user script /srv/workspace/pbuilder/117999/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='i386'
-  DEBIAN_FRONTEND='noninteractive'
-  DEB_BUILD_OPTIONS='buildinfo=+all reproducible=+all parallel=11 '
-  DISTRIBUTION='unstable'
-  HOME='/root'
-  HOST_ARCH='i386'
+  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]="i686-pc-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=i386
+  DEBIAN_FRONTEND=noninteractive
+  DEB_BUILD_OPTIONS='buildinfo=+all reproducible=+all parallel=21 '
+  DIRSTACK=()
+  DISTRIBUTION=unstable
+  EUID=0
+  FUNCNAME=([0]="Echo" [1]="main")
+  GROUPS=()
+  HOME=/root
+  HOSTNAME=i-capture-the-hostname
+  HOSTTYPE=i686
+  HOST_ARCH=i386
   IFS=' 	
   '
-  INVOCATION_ID='6bfc8a3497c14d80b97b98d3fa8dafdd'
-  LANG='C'
-  LANGUAGE='en_US:en'
-  LC_ALL='C'
-  LD_LIBRARY_PATH='/usr/lib/libeatmydata'
-  LD_PRELOAD='libeatmydata.so'
-  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='54091'
-  PS1='# '
-  PS2='> '
+  INVOCATION_ID=ea768e621a1244ee9b6c572bd69e9e81
+  LANG=C
+  LANGUAGE=de_CH:de
+  LC_ALL=C
+  LD_LIBRARY_PATH=/usr/lib/libeatmydata
+  LD_PRELOAD=libeatmydata.so
+  MACHTYPE=i686-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=117999
   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.lRPFA2US/pbuilderrc_C9Hu --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.lRPFA2US/b1 --logfile b1/build.log golang-github-anacrolix-fuse_0.2.0-2.dsc'
-  SUDO_GID='112'
-  SUDO_UID='107'
-  SUDO_USER='jenkins'
-  TERM='unknown'
-  TZ='/usr/share/zoneinfo/Etc/GMT+12'
-  USER='root'
-  _='/usr/bin/systemd-run'
-  http_proxy='http://46.16.76.132:3128'
+  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.lRPFA2US/pbuilderrc_jgyH --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.lRPFA2US/b2 --logfile b2/build.log golang-github-anacrolix-fuse_0.2.0-2.dsc'
+  SUDO_GID=112
+  SUDO_UID=107
+  SUDO_USER=jenkins
+  TERM=unknown
+  TZ=/usr/share/zoneinfo/Etc/GMT-14
+  UID=0
+  USER=root
+  _='I: set'
+  http_proxy=http://213.165.73.152:3128
 I: uname -a
-  Linux ionos2-i386 6.1.0-20-amd64 #1 SMP PREEMPT_DYNAMIC Debian 6.1.85-1 (2024-04-11) x86_64 GNU/Linux
+  Linux i-capture-the-hostname 6.1.0-20-amd64 #1 SMP PREEMPT_DYNAMIC Debian 6.1.85-1 (2024-04-11) x86_64 GNU/Linux
 I: ls -l /bin
-  lrwxrwxrwx 1 root root 7 Apr 26 07:43 /bin -> usr/bin
-I: user script /srv/workspace/pbuilder/54091/tmp/hooks/D02_print_environment finished
+  lrwxrwxrwx 1 root root 7 May 29 14:06 /bin -> usr/bin
+I: user script /srv/workspace/pbuilder/117999/tmp/hooks/D02_print_environment finished
  -> Attempting to satisfy build-dependencies
  -> Creating pbuilder-satisfydepends-dummy package
 Package: pbuilder-satisfydepends-dummy
@@ -160,7 +192,7 @@
 Get: 37 http://deb.debian.org/debian unstable/main i386 golang-any i386 2:1.22~3 [5104 B]
 Get: 38 http://deb.debian.org/debian unstable/main i386 golang-github-tv42-httpunix-dev all 0.0~git20150427.b75d861-3 [3956 B]
 Get: 39 http://deb.debian.org/debian unstable/main i386 golang-golang-x-sys-dev all 0.19.0-1 [402 kB]
-Fetched 61.5 MB in 1s (76.4 MB/s)
+Fetched 61.5 MB in 1s (97.2 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 ... 19679 files and directories currently installed.)
@@ -331,7 +363,11 @@
 Building tag database...
  -> Finished parsing the build-deps
 I: Building the package
-I: Running cd /build/reproducible-path/golang-github-anacrolix-fuse-0.2.0/ && 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-anacrolix-fuse_0.2.0-2_source.changes
+I: user script /srv/workspace/pbuilder/117999/tmp/hooks/A99_set_merged_usr starting
+Not re-configuring usrmerge for unstable
+I: user script /srv/workspace/pbuilder/117999/tmp/hooks/A99_set_merged_usr finished
+hostname: Name or service not known
+I: Running cd /build/reproducible-path/golang-github-anacrolix-fuse-0.2.0/ && 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-anacrolix-fuse_0.2.0-2_source.changes
 dpkg-buildpackage: info: source package golang-github-anacrolix-fuse
 dpkg-buildpackage: info: source version 0.2.0-2
 dpkg-buildpackage: info: source distribution unstable
@@ -349,38 +385,38 @@
    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 11 github.com/anacrolix/fuse github.com/anacrolix/fuse/cmd/fuse-abort github.com/anacrolix/fuse/cmd/fuse-abort/internal/mountinfo github.com/anacrolix/fuse/examples/clockfs github.com/anacrolix/fuse/examples/hellofs github.com/anacrolix/fuse/fs github.com/anacrolix/fuse/fs/bench github.com/anacrolix/fuse/fs/fstestutil github.com/anacrolix/fuse/fs/fstestutil/record github.com/anacrolix/fuse/fs/fstestutil/spawntest github.com/anacrolix/fuse/fs/fstestutil/spawntest/httpjson github.com/anacrolix/fuse/fuseutil github.com/anacrolix/fuse/syscallx
-internal/coverage/rtcov
+	cd _build && go install -trimpath -v -p 21 github.com/anacrolix/fuse github.com/anacrolix/fuse/cmd/fuse-abort github.com/anacrolix/fuse/cmd/fuse-abort/internal/mountinfo github.com/anacrolix/fuse/examples/clockfs github.com/anacrolix/fuse/examples/hellofs github.com/anacrolix/fuse/fs github.com/anacrolix/fuse/fs/bench github.com/anacrolix/fuse/fs/fstestutil github.com/anacrolix/fuse/fs/fstestutil/record github.com/anacrolix/fuse/fs/fstestutil/spawntest github.com/anacrolix/fuse/fs/fstestutil/spawntest/httpjson github.com/anacrolix/fuse/fuseutil github.com/anacrolix/fuse/syscallx
 internal/godebugs
 internal/unsafeheader
-internal/goarch
-internal/goos
-runtime/internal/syscall
-runtime/internal/atomic
-sync/atomic
-internal/goexperiment
-internal/cpu
-internal/chacha8rand
 internal/race
-internal/abi
-runtime/internal/math
-runtime/internal/sys
-unicode
-unicode/utf8
+github.com/anacrolix/fuse/fs/bench
 encoding
+internal/nettrace
+internal/coverage/rtcov
+internal/goos
+unicode/utf8
+cmp
+internal/goexperiment
+log/internal
 math/bits
 internal/itoa
-cmp
+internal/goarch
 unicode/utf16
-log/internal
-internal/nettrace
-github.com/anacrolix/fuse/fs/bench
+internal/cpu
+unicode
+sync/atomic
+runtime/internal/syscall
+runtime/internal/atomic
 container/list
 crypto/internal/alias
-slices
 crypto/internal/boring/sig
 vendor/golang.org/x/crypto/cryptobyte/asn1
 vendor/golang.org/x/crypto/internal/alias
+internal/chacha8rand
+runtime/internal/math
+runtime/internal/sys
+internal/abi
+slices
 math
 internal/bytealg
 runtime
@@ -388,101 +424,101 @@
 internal/reflectlite
 sync
 internal/testlog
-internal/bisect
 internal/singleflight
+internal/bisect
 runtime/cgo
 errors
-internal/godebug
 sort
+internal/godebug
 internal/oserror
 internal/safefilepath
-io
-internal/intern
 path
+io
 vendor/golang.org/x/net/dns/dnsmessage
-math/rand
 strconv
-syscall
 crypto/internal/nistec/fiat
-bytes
+syscall
+internal/intern
+math/rand
 hash
-strings
 crypto/internal/randutil
+bytes
+strings
 hash/fnv
 hash/crc32
+vendor/golang.org/x/text/transform
+net/http/internal/ascii
+bufio
 crypto
 crypto/rc4
 net/netip
 reflect
-vendor/golang.org/x/text/transform
-bufio
-net/http/internal/ascii
-time
 internal/syscall/execenv
 internal/syscall/unix
+time
 crypto/internal/nistec
-io/fs
 context
+io/fs
 internal/poll
-encoding/binary
 internal/fmtsort
+encoding/binary
 os
 encoding/base64
-crypto/cipher
-crypto/internal/edwards25519/field
 vendor/golang.org/x/crypto/internal/poly1305
+crypto/internal/edwards25519/field
 crypto/md5
+crypto/cipher
 golang.org/x/sys/unix
 encoding/pem
 crypto/internal/edwards25519
-crypto/internal/boring
 crypto/des
 vendor/golang.org/x/crypto/chacha20
+crypto/internal/boring
 crypto/sha512
-crypto/ecdh
-crypto/aes
 crypto/hmac
 crypto/sha1
+crypto/ecdh
 crypto/sha256
-vendor/golang.org/x/crypto/hkdf
+crypto/aes
 vendor/golang.org/x/crypto/chacha20poly1305
-internal/sysinfo
+vendor/golang.org/x/crypto/hkdf
 io/ioutil
+internal/sysinfo
 path/filepath
 fmt
 net
 os/exec
+github.com/anacrolix/fuse/cmd/fuse-abort/internal/mountinfo
 log
 flag
-github.com/anacrolix/fuse/cmd/fuse-abort/internal/mountinfo
-encoding/json
+mime/quotedprintable
 runtime/debug
 runtime/trace
+net/http/internal
+net/url
 encoding/hex
+mime
 compress/flate
+vendor/golang.org/x/net/http2/hpack
+encoding/json
 math/big
-net/url
 vendor/golang.org/x/text/unicode/norm
-vendor/golang.org/x/net/http2/hpack
 vendor/golang.org/x/text/unicode/bidi
-mime
-mime/quotedprintable
 testing
-net/http/internal
 compress/gzip
 vendor/golang.org/x/text/secure/bidirule
 vendor/golang.org/x/net/idna
-github.com/anacrolix/fuse/syscallx
-crypto/rand
-crypto/internal/bigmod
 crypto/internal/boring/bbig
+crypto/rand
 crypto/elliptic
 crypto/dsa
+crypto/internal/bigmod
 encoding/asn1
 crypto/ed25519
+github.com/anacrolix/fuse/syscallx
 crypto/rsa
-vendor/golang.org/x/crypto/cryptobyte
 crypto/x509/pkix
+vendor/golang.org/x/crypto/cryptobyte
 crypto/ecdsa
 vendor/golang.org/x/net/http/httpproxy
 net/textproto
@@ -490,12 +526,12 @@
 crypto/x509
 vendor/golang.org/x/net/http/httpguts
 mime/multipart
-github.com/anacrolix/fuse/cmd/fuse-abort
 github.com/anacrolix/fuse/fuseutil
+github.com/anacrolix/fuse/cmd/fuse-abort
 github.com/anacrolix/fuse/fs
 crypto/tls
-github.com/anacrolix/fuse/fs/fstestutil
 github.com/anacrolix/fuse/fs/fstestutil/record
+github.com/anacrolix/fuse/fs/fstestutil
 github.com/anacrolix/fuse/examples/clockfs
 github.com/anacrolix/fuse/examples/hellofs
 net/http/httptrace
@@ -538,12 +574,14 @@
 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/117999/tmp/hooks/B01_cleanup starting
+I: user script /srv/workspace/pbuilder/117999/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/54091 and its subdirectories
-I: Current time: Sat Apr 27 04:44:40 -12 2024
-I: pbuilder-time-stamp: 1714236280
+I: removing directory /srv/workspace/pbuilder/117999 and its subdirectories
+I: Current time: Sat May 31 13:08:19 +14 2025
+I: pbuilder-time-stamp: 1748646499