Diff of the two buildlogs:

--
--- b1/build.log	2024-05-07 22:42:54.364158597 +0000
+++ b2/build.log	2024-05-07 22:45:42.904979988 +0000
@@ -1,6 +1,6 @@
 I: pbuilder: network access will be disabled during build
-I: Current time: Mon Jun  9 17:04:13 -12 2025
-I: pbuilder-time-stamp: 1749531853
+I: Current time: Wed May  8 12:42:57 +14 2024
+I: pbuilder-time-stamp: 1715121777
 I: Building the build Environment
 I: extracting base tarball [/var/cache/pbuilder/unstable-reproducible-base.tgz]
 I: copying local configuration
@@ -25,52 +25,84 @@
 dpkg-source: info: unpacking golang-github-russellhaering-goxmldsig_1.2.0-1.debian.tar.xz
 I: Not using root during the build.
 I: Installing the build-deps
-I: user script /srv/workspace/pbuilder/1974155/tmp/hooks/D02_print_environment starting
+I: user script /srv/workspace/pbuilder/2066351/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 May  7 22:43 /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/2066351/tmp/hooks/D01_modify_environment finished
+I: user script /srv/workspace/pbuilder/2066351/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]="21" [3]="1" [4]="release" [5]="x86_64-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=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='24ef38b1a39a46d8b9f02324b0a0a13e'
-  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='1974155'
-  PS1='# '
-  PS2='> '
+  INVOCATION_ID=54732f02358e4d7d8bec3e7796526bf1
+  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=2066351
   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.WKZ4SiW4/pbuilderrc_XzIb --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.WKZ4SiW4/b1 --logfile b1/build.log golang-github-russellhaering-goxmldsig_1.2.0-1.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.WKZ4SiW4/pbuilderrc_cqbi --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.WKZ4SiW4/b2 --logfile b2/build.log golang-github-russellhaering-goxmldsig_1.2.0-1.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 ionos5-amd64 6.6.13+bpo-amd64 #1 SMP PREEMPT_DYNAMIC Debian 6.6.13-1~bpo12+1 (2024-02-15) x86_64 GNU/Linux
+  Linux i-capture-the-hostname 6.1.0-21-amd64 #1 SMP PREEMPT_DYNAMIC Debian 6.1.90-1 (2024-05-03) x86_64 GNU/Linux
 I: ls -l /bin
-  lrwxrwxrwx 1 root root 7 Jun  9 14:05 /bin -> usr/bin
-I: user script /srv/workspace/pbuilder/1974155/tmp/hooks/D02_print_environment finished
+  lrwxrwxrwx 1 root root 7 May  7 07:43 /bin -> usr/bin
+I: user script /srv/workspace/pbuilder/2066351/tmp/hooks/D02_print_environment finished
  -> Attempting to satisfy build-dependencies
  -> Creating pbuilder-satisfydepends-dummy package
 Package: pbuilder-satisfydepends-dummy
@@ -159,7 +191,7 @@
 Get: 41 http://deb.debian.org/debian unstable/main amd64 golang-github-stretchr-objx-dev all 0.5.2-1 [25.5 kB]
 Get: 42 http://deb.debian.org/debian unstable/main amd64 golang-gopkg-yaml.v3-dev all 3.0.1-3 [74.3 kB]
 Get: 43 http://deb.debian.org/debian unstable/main amd64 golang-github-stretchr-testify-dev all 1.9.0-1 [74.7 kB]
-Fetched 63.0 MB in 1s (49.0 MB/s)
+Fetched 63.0 MB in 2s (34.3 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 ... 19699 files and directories currently installed.)
@@ -346,7 +378,11 @@
 Building tag database...
  -> Finished parsing the build-deps
 I: Building the package
-I: Running cd /build/reproducible-path/golang-github-russellhaering-goxmldsig-1.2.0/ && 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-russellhaering-goxmldsig_1.2.0-1_source.changes
+I: user script /srv/workspace/pbuilder/2066351/tmp/hooks/A99_set_merged_usr starting
+Not re-configuring usrmerge for unstable
+I: user script /srv/workspace/pbuilder/2066351/tmp/hooks/A99_set_merged_usr finished
+hostname: Name or service not known
+I: Running cd /build/reproducible-path/golang-github-russellhaering-goxmldsig-1.2.0/ && 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-russellhaering-goxmldsig_1.2.0-1_source.changes
 dpkg-buildpackage: info: source package golang-github-russellhaering-goxmldsig
 dpkg-buildpackage: info: source version 1.2.0-1
 dpkg-buildpackage: info: source distribution unstable
@@ -364,117 +400,117 @@
    dh_autoreconf -O--buildsystem=golang
    dh_auto_configure -O--buildsystem=golang
    dh_auto_build -O--buildsystem=golang
-	cd obj-x86_64-linux-gnu && go install -trimpath -v -p 42 github.com/russellhaering/goxmldsig github.com/russellhaering/goxmldsig/etreeutils github.com/russellhaering/goxmldsig/types
-internal/race
-internal/itoa
+	cd obj-x86_64-linux-gnu && go install -trimpath -v -p 20 github.com/russellhaering/goxmldsig github.com/russellhaering/goxmldsig/etreeutils github.com/russellhaering/goxmldsig/types
+internal/coverage/rtcov
+cmp
 container/list
-internal/goarch
 internal/unsafeheader
-internal/coverage/rtcov
-vendor/golang.org/x/crypto/cryptobyte/asn1
-unicode/utf16
-internal/nettrace
-vendor/golang.org/x/crypto/internal/alias
-internal/goos
-unicode/utf8
-crypto/internal/alias
+internal/godebugs
 math/bits
-runtime/internal/syscall
+internal/goarch
+unicode/utf8
+crypto/internal/boring/sig
+unicode
 runtime/internal/atomic
-internal/godebugs
+internal/itoa
+unicode/utf16
+internal/abi
+internal/race
 internal/cpu
-encoding
-cmp
-crypto/subtle
+crypto/internal/alias
+runtime/internal/syscall
+internal/chacha8rand
+internal/goos
 sync/atomic
-crypto/internal/boring/sig
-unicode
-internal/goexperiment
+crypto/subtle
 runtime/internal/math
+internal/goexperiment
+vendor/golang.org/x/crypto/cryptobyte/asn1
+internal/nettrace
+vendor/golang.org/x/crypto/internal/alias
+encoding
 runtime/internal/sys
-internal/abi
-internal/chacha8rand
 slices
 internal/bytealg
 math
 runtime
 internal/reflectlite
 sync
-internal/singleflight
 internal/testlog
 internal/bisect
+internal/singleflight
 runtime/cgo
-internal/godebug
 errors
 sort
 io
-internal/oserror
-internal/safefilepath
 path
-internal/intern
-vendor/golang.org/x/net/dns/dnsmessage
-math/rand
+internal/safefilepath
+internal/godebug
+internal/oserror
 strconv
+vendor/golang.org/x/net/dns/dnsmessage
 crypto/internal/nistec/fiat
 syscall
-crypto/internal/randutil
+internal/intern
+math/rand
 bytes
 hash
+crypto/internal/randutil
 strings
 crypto
 crypto/rc4
 net/netip
+reflect
 bufio
 regexp/syntax
-reflect
-regexp
 internal/syscall/execenv
 internal/syscall/unix
 time
-github.com/jonboulle/clockwork
-context
+regexp
 io/fs
+context
+github.com/jonboulle/clockwork
 internal/poll
 embed
 internal/fmtsort
 encoding/binary
 os
+crypto/md5
 encoding/base64
+vendor/golang.org/x/crypto/internal/poly1305
 crypto/internal/edwards25519/field
 crypto/cipher
-crypto/md5
-vendor/golang.org/x/crypto/internal/poly1305
 crypto/internal/nistec
 encoding/pem
 crypto/internal/boring
 crypto/des
 vendor/golang.org/x/crypto/chacha20
-crypto/internal/edwards25519
-crypto/hmac
 crypto/sha1
-crypto/sha512
-crypto/aes
 crypto/sha256
-vendor/golang.org/x/sys/cpu
+crypto/aes
+crypto/hmac
+crypto/sha512
+crypto/internal/edwards25519
+vendor/golang.org/x/crypto/hkdf
 path/filepath
 fmt
-vendor/golang.org/x/crypto/hkdf
+vendor/golang.org/x/sys/cpu
+net
 vendor/golang.org/x/crypto/chacha20poly1305
+crypto/ecdh
 encoding/hex
 net/url
 encoding/xml
 math/big
-crypto/ecdh
-net
 github.com/beevik/etree
-crypto/internal/boring/bbig
+github.com/russellhaering/goxmldsig/etreeutils
+github.com/russellhaering/goxmldsig/types
 crypto/rand
-crypto/elliptic
+crypto/internal/bigmod
 crypto/dsa
+crypto/internal/boring/bbig
+crypto/elliptic
 encoding/asn1
-crypto/internal/bigmod
-github.com/russellhaering/goxmldsig/types
-github.com/russellhaering/goxmldsig/etreeutils
 crypto/ed25519
 crypto/rsa
 crypto/x509/pkix
@@ -484,7 +520,7 @@
 crypto/tls
 github.com/russellhaering/goxmldsig
    dh_auto_test -O--buildsystem=golang
-	cd obj-x86_64-linux-gnu && go test -vet=off -v -p 42 github.com/russellhaering/goxmldsig github.com/russellhaering/goxmldsig/etreeutils github.com/russellhaering/goxmldsig/types
+	cd obj-x86_64-linux-gnu && go test -vet=off -v -p 20 github.com/russellhaering/goxmldsig github.com/russellhaering/goxmldsig/etreeutils github.com/russellhaering/goxmldsig/types
 ?   	github.com/russellhaering/goxmldsig/etreeutils	[no test files]
 ?   	github.com/russellhaering/goxmldsig/types	[no test files]
 === RUN   TestExcC14N10
@@ -508,17 +544,17 @@
 === RUN   TestExcC14nRedeclareDefaultNamespace
 --- PASS: TestExcC14nRedeclareDefaultNamespace (0.00s)
 === RUN   TestSign
---- PASS: TestSign (0.04s)
+--- PASS: TestSign (0.11s)
 === RUN   TestSignErrors
---- PASS: TestSignErrors (0.05s)
+--- PASS: TestSignErrors (0.10s)
 === RUN   TestSignNonDefaultID
---- PASS: TestSignNonDefaultID (0.10s)
+--- PASS: TestSignNonDefaultID (0.09s)
 === RUN   TestDigest
 --- PASS: TestDigest (0.00s)
 === RUN   TestTransform
 --- PASS: TestTransform (0.00s)
 === RUN   TestValidateWithEmptySignatureReference
---- PASS: TestValidateWithEmptySignatureReference (0.00s)
+--- PASS: TestValidateWithEmptySignatureReference (0.01s)
 === RUN   TestValidateWithValid
 --- PASS: TestValidateWithValid (0.00s)
 === RUN   TestValidateWithModified
@@ -528,7 +564,7 @@
 === RUN   TestMapPathAndRemove
 --- PASS: TestMapPathAndRemove (0.00s)
 PASS
-ok  	github.com/russellhaering/goxmldsig	0.200s
+ok  	github.com/russellhaering/goxmldsig	0.327s
    create-stamp debian/debhelper-build-stamp
    dh_testroot -O--buildsystem=golang
    dh_prep -O--buildsystem=golang
@@ -556,12 +592,14 @@
 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/2066351/tmp/hooks/B01_cleanup starting
+I: user script /srv/workspace/pbuilder/2066351/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/1974155 and its subdirectories
-I: Current time: Mon Jun  9 17:05:52 -12 2025
-I: pbuilder-time-stamp: 1749531952
+I: removing directory /srv/workspace/pbuilder/2066351 and its subdirectories
+I: Current time: Wed May  8 12:45:42 +14 2024
+I: pbuilder-time-stamp: 1715121942