Diff of the two buildlogs:

--
--- b1/build.log	2025-03-19 13:13:16.535885726 +0000
+++ b2/build.log	2025-03-19 13:15:01.931138530 +0000
@@ -1,7 +1,6 @@
-W: cgroups are not available on the host, not using them.
 I: pbuilder: network access will be disabled during build
-I: Current time: Wed Mar 19 01:12:06 -12 2025
-I: pbuilder-time-stamp: 1742389926
+I: Current time: Wed Apr 22 09:36:19 +14 2026
+I: pbuilder-time-stamp: 1776800179
 I: Building the build Environment
 I: extracting base tarball [/var/cache/pbuilder/unstable-reproducible-base.tgz]
 I: copying local configuration
@@ -25,51 +24,84 @@
 dpkg-source: info: applying 0001-Revert-alecthomas-kingpin-import-path.patch
 I: Not using root during the build.
 I: Installing the build-deps
-I: user script /srv/workspace/pbuilder/775017/tmp/hooks/D02_print_environment starting
+I: user script /srv/workspace/pbuilder/892288/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 Apr 21 19:36 /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/892288/tmp/hooks/D01_modify_environment finished
+I: user script /srv/workspace/pbuilder/892288/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='unstable'
-  HOME='/root'
-  HOST_ARCH='arm64'
+  DIRSTACK=()
+  DISTRIBUTION=unstable
+  EUID=0
+  FUNCNAME=([0]="Echo" [1]="main")
+  GROUPS=()
+  HOME=/root
+  HOSTNAME=i-capture-the-hostname
+  HOSTTYPE=aarch64
+  HOST_ARCH=arm64
   IFS=' 	
   '
-  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='775017'
-  PS1='# '
-  PS2='> '
+  INVOCATION_ID=9d37da82a80e49b88676dd0f0337bd3f
+  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=892288
   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.au60UZsT/pbuilderrc_NPB6 --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.au60UZsT/b1 --logfile b1/build.log rdap_0.9.1-3.dsc'
-  SUDO_GID='109'
-  SUDO_UID='104'
-  SUDO_USER='jenkins'
-  TERM='unknown'
-  TZ='/usr/share/zoneinfo/Etc/GMT+12'
-  USER='root'
-  _='/usr/sbin/chroot'
-  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.au60UZsT/pbuilderrc_ArZi --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.au60UZsT/b2 --logfile b2/build.log rdap_0.9.1-3.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 6.1.0-32-cloud-arm64 #1 SMP Debian 6.1.129-1 (2025-03-06) aarch64 GNU/Linux
+  Linux i-capture-the-hostname 6.1.0-32-cloud-arm64 #1 SMP Debian 6.1.129-1 (2025-03-06) aarch64 GNU/Linux
 I: ls -l /bin
-  lrwxrwxrwx 1 root root 7 Mar  4 11:20 /bin -> usr/bin
-I: user script /srv/workspace/pbuilder/775017/tmp/hooks/D02_print_environment finished
+  lrwxrwxrwx 1 root root 7 Mar  4  2025 /bin -> usr/bin
+I: user script /srv/workspace/pbuilder/892288/tmp/hooks/D02_print_environment finished
  -> Attempting to satisfy build-dependencies
  -> Creating pbuilder-satisfydepends-dummy package
 Package: pbuilder-satisfydepends-dummy
@@ -171,7 +203,7 @@
 Get: 50 http://deb.debian.org/debian unstable/main arm64 golang-golang-x-text-dev all 0.22.0-1 [3995 kB]
 Get: 51 http://deb.debian.org/debian unstable/main arm64 golang-golang-x-crypto-dev all 1:0.25.0-1 [1682 kB]
 Get: 52 http://deb.debian.org/debian unstable/main arm64 golang-gopkg-alecthomas-kingpin.v2-dev all 2.2.6-4 [42.8 kB]
-Fetched 74.8 MB in 0s (155 MB/s)
+Fetched 74.8 MB in 0s (195 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 ... 19898 files and directories currently installed.)
@@ -394,7 +426,11 @@
 Building tag database...
  -> Finished parsing the build-deps
 I: Building the package
-I: Running cd /build/reproducible-path/rdap-0.9.1/ && 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  > ../rdap_0.9.1-3_source.changes
+I: user script /srv/workspace/pbuilder/892288/tmp/hooks/A99_set_merged_usr starting
+Not re-configuring usrmerge for unstable
+I: user script /srv/workspace/pbuilder/892288/tmp/hooks/A99_set_merged_usr finished
+hostname: Name or service not known
+I: Running cd /build/reproducible-path/rdap-0.9.1/ && 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  > ../rdap_0.9.1-3_source.changes
 dpkg-buildpackage: info: source package rdap
 dpkg-buildpackage: info: source version 0.9.1-3
 dpkg-buildpackage: info: source distribution unstable
@@ -413,46 +449,46 @@
    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/openrdap/rdap github.com/openrdap/rdap/bootstrap github.com/openrdap/rdap/bootstrap/cache github.com/openrdap/rdap/cmd/rdap github.com/openrdap/rdap/sandbox github.com/openrdap/rdap/test
-internal/coverage/rtcov
+internal/goarch
 internal/godebugs
-internal/goexperiment
-internal/goos
+internal/byteorder
+internal/coverage/rtcov
 internal/profilerecord
+internal/unsafeheader
+internal/goexperiment
+math/bits
 internal/asan
-internal/goarch
-internal/byteorder
 internal/msan
-math/bits
+internal/goos
 unicode
-internal/unsafeheader
+internal/cpu
 unicode/utf8
+internal/runtime/syscall
+internal/runtime/math
+internal/abi
+internal/chacha8rand
 internal/itoa
 container/list
 sync/atomic
-internal/runtime/math
-internal/cpu
-internal/chacha8rand
-internal/runtime/syscall
-internal/abi
+math
 crypto/internal/fips140/alias
 crypto/internal/fips140deps/byteorder
 cmp
-math
 crypto/internal/boring/sig
 unicode/utf16
+crypto/internal/fips140/subtle
 vendor/golang.org/x/crypto/cryptobyte/asn1
 vendor/golang.org/x/crypto/internal/alias
-crypto/internal/fips140/subtle
 internal/nettrace
 encoding
 log/internal
+internal/runtime/atomic
 internal/bytealg
 internal/runtime/sys
 crypto/internal/fips140deps/cpu
-internal/runtime/atomic
 internal/runtime/exithook
-internal/stringslite
 internal/race
+internal/stringslite
 internal/runtime/maps
 internal/sync
 runtime
@@ -467,118 +503,118 @@
 internal/testlog
 internal/singleflight
 unique
-runtime/cgo
 errors
 sort
-internal/godebug
-math/rand/v2
-vendor/golang.org/x/net/dns/dnsmessage
+runtime/cgo
+io
 internal/oserror
 strconv
-io
 path
+math/rand/v2
+internal/godebug
+vendor/golang.org/x/net/dns/dnsmessage
 syscall
-crypto/internal/fips140deps/godebug
-math/rand
 bytes
 hash
-strings
+crypto/internal/fips140deps/godebug
+crypto
+math/rand
 crypto/internal/randutil
+strings
+vendor/golang.org/x/text/transform
 hash/crc32
-crypto
 reflect
 net/netip
-vendor/golang.org/x/text/transform
 crypto/internal/fips140
 crypto/internal/impl
 bufio
 net/http/internal/ascii
 regexp/syntax
 crypto/internal/fips140/sha256
-crypto/internal/fips140/sha3
 crypto/internal/fips140/sha512
 crypto/tls/internal/fips140tls
+crypto/internal/fips140/sha3
+time
+internal/syscall/unix
+internal/syscall/execenv
 crypto/sha3
 crypto/internal/fips140/hmac
 crypto/internal/fips140hash
 crypto/internal/fips140/check
 crypto/internal/fips140/aes
 crypto/internal/fips140/nistec/fiat
+crypto/internal/fips140/hkdf
+crypto/internal/fips140/tls12
 crypto/internal/fips140/edwards25519/field
 crypto/internal/fips140/bigmod
-crypto/internal/fips140/tls12
-crypto/internal/fips140/hkdf
 regexp
 crypto/internal/fips140/tls13
-time
-internal/syscall/unix
 crypto/internal/fips140/edwards25519
-internal/syscall/execenv
-crypto/internal/fips140/nistec
 context
 io/fs
 internal/poll
+crypto/internal/fips140/nistec
 internal/filepathlite
 os
 internal/fmtsort
 encoding/binary
 crypto/internal/sysrand
 fmt
-path/filepath
 net
 io/ioutil
+path/filepath
 internal/lazyregexp
 vendor/golang.org/x/crypto/internal/poly1305
 encoding/base64
 crypto/internal/entropy
 crypto/internal/fips140/drbg
 os/exec
+encoding/pem
 crypto/internal/fips140/aes/gcm
 crypto/internal/fips140only
 crypto/internal/fips140/ecdh
-crypto/internal/fips140/ecdsa
 crypto/internal/fips140/ed25519
 crypto/internal/fips140/mlkem
 crypto/internal/fips140/rsa
-encoding/pem
+crypto/internal/fips140/ecdsa
 crypto/md5
 crypto/rc4
-github.com/mitchellh/go-homedir
 crypto/cipher
-crypto/internal/boring
-crypto/des
-math/big
-vendor/golang.org/x/crypto/chacha20
+github.com/mitchellh/go-homedir
 encoding/hex
 net/url
-vendor/golang.org/x/text/unicode/norm
 encoding/json
-github.com/openrdap/rdap/bootstrap/cache
 compress/flate
 log
+vendor/golang.org/x/text/unicode/norm
+vendor/golang.org/x/net/http2/hpack
+math/big
+github.com/openrdap/rdap/bootstrap/cache
+mime
+mime/quotedprintable
+crypto/internal/boring
+crypto/des
+vendor/golang.org/x/crypto/chacha20
+compress/gzip
+net/http/internal
 crypto/aes
 crypto/ecdh
 crypto/sha512
 crypto/hmac
 crypto/sha1
 crypto/sha256
-vendor/golang.org/x/net/http2/hpack
-mime
-mime/quotedprintable
-vendor/golang.org/x/text/unicode/bidi
-net/http/internal
 github.com/openrdap/rdap/sandbox
 vendor/golang.org/x/crypto/chacha20poly1305
 golang.org/x/crypto/pkcs12/internal/rc2
+vendor/golang.org/x/text/unicode/bidi
 github.com/alecthomas/units
 go/token
 go/doc/comment
 text/template/parse
 encoding/xml
-compress/gzip
-vendor/golang.org/x/text/secure/bidirule
 go/scanner
 go/ast
+vendor/golang.org/x/text/secure/bidirule
 vendor/golang.org/x/net/idna
 text/template
 crypto/elliptic
@@ -589,14 +625,14 @@
 crypto/ed25519
 crypto/internal/hpke
 crypto/rsa
-go/doc
 vendor/golang.org/x/crypto/cryptobyte
 crypto/x509/pkix
+go/doc
 crypto/ecdsa
-crypto/x509
 net/textproto
-vendor/golang.org/x/net/http/httpproxy
 gopkg.in/alecthomas/kingpin.v2
+crypto/x509
+vendor/golang.org/x/net/http/httpproxy
 vendor/golang.org/x/net/http/httpguts
 mime/multipart
 crypto/tls
@@ -627,7 +663,7 @@
 #   bootstrap: Service URL #1: 'https://rdap.nic.cz'
 # client: RDAP URL #0 is https://rdap.nic.cz/domain/example.cz
 # client: GET https://rdap.nic.cz/domain/example.cz
-# client: status-code=200, content-type=, length=3501 bytes, duration=12.76µs
+# client: status-code=200, content-type=, length=3501 bytes, duration=13.12µs
 # client: Successfully decoded response
 --- PASS: TestClientQueryDomain (0.00s)
 === RUN   TestClientQueryDomain404
@@ -646,7 +682,7 @@
 #   bootstrap: Service URL #1: 'https://rdap.nic.cz'
 # client: RDAP URL #0 is https://rdap.nic.cz/domain/non-existent.cz
 # client: GET https://rdap.nic.cz/domain/non-existent.cz
-# client: status-code=404, content-type=, length=0 bytes, duration=5.12µs
+# client: status-code=404, content-type=, length=0 bytes, duration=5.04µs
 --- PASS: TestClientQueryDomain404 (0.00s)
 === RUN   TestClientQueryDomainWrongType
 # 
@@ -664,9 +700,9 @@
 #   bootstrap: Service URL #1: 'https://rdap.nic.cz'
 # client: RDAP URL #0 is https://rdap.nic.cz/domain/wrong-response-type.cz
 # client: GET https://rdap.nic.cz/domain/wrong-response-type.cz
-# client: status-code=200, content-type=, length=821 bytes, duration=5.68µs
+# client: status-code=200, content-type=, length=821 bytes, duration=22.84µs
 # client: Successfully decoded response
---- PASS: TestClientQueryDomainWrongType (0.00s)
+--- PASS: TestClientQueryDomainWrongType (0.01s)
 === RUN   TestClientQueryDomainMalformed
 # 
 # client: Running...
@@ -683,7 +719,7 @@
 #   bootstrap: Service URL #1: 'https://rdap.nic.cz'
 # client: RDAP URL #0 is https://rdap.nic.cz/domain/malformed.cz
 # client: GET https://rdap.nic.cz/domain/malformed.cz
-# client: status-code=200, content-type=, length=9 bytes, duration=8.92µs
+# client: status-code=200, content-type=, length=9 bytes, duration=5.92µs
 # client: Error decoding response: invalid character '<' looking for beginning of object key string
 --- PASS: TestClientQueryDomainMalformed (0.00s)
 === RUN   TestDecodeEmpty
@@ -762,9 +798,9 @@
 === RUN   Example
 --- PASS: Example (0.00s)
 PASS
-ok  	github.com/openrdap/rdap	0.043s
+ok  	github.com/openrdap/rdap	0.068s
 === RUN   TestNetRegistryLookupsASN
---- PASS: TestNetRegistryLookupsASN (0.00s)
+--- PASS: TestNetRegistryLookupsASN (0.01s)
 === RUN   TestDownload
 --- PASS: TestDownload (0.00s)
 === RUN   TestLookups
@@ -793,19 +829,19 @@
 === RUN   TestServiceProviderRegistryLookups
 --- PASS: TestServiceProviderRegistryLookups (0.00s)
 PASS
-ok  	github.com/openrdap/rdap/bootstrap	0.030s
+ok  	github.com/openrdap/rdap/bootstrap	0.064s
 === RUN   TestDiskCache
---- PASS: TestDiskCache (1.00s)
+--- PASS: TestDiskCache (1.01s)
 === RUN   TestMemoryCache
 --- PASS: TestMemoryCache (0.00s)
 PASS
-ok  	github.com/openrdap/rdap/bootstrap/cache	1.018s
+ok  	github.com/openrdap/rdap/bootstrap/cache	1.052s
 ?   	github.com/openrdap/rdap/cmd/rdap	[no test files]
 ?   	github.com/openrdap/rdap/sandbox	[no test files]
 === RUN   TestSmoke
 --- PASS: TestSmoke (0.00s)
 PASS
-ok  	github.com/openrdap/rdap/test	0.028s
+ok  	github.com/openrdap/rdap/test	0.064s
    create-stamp debian/debhelper-build-stamp
    dh_testroot -O--builddirectory=_build -O--buildsystem=golang
    dh_prep -O--builddirectory=_build -O--buildsystem=golang
@@ -843,12 +879,14 @@
 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/892288/tmp/hooks/B01_cleanup starting
+I: user script /srv/workspace/pbuilder/892288/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/775017 and its subdirectories
-I: Current time: Wed Mar 19 01:13:15 -12 2025
-I: pbuilder-time-stamp: 1742389995
+I: removing directory /srv/workspace/pbuilder/892288 and its subdirectories
+I: Current time: Wed Apr 22 09:38:00 +14 2026
+I: pbuilder-time-stamp: 1776800280