Diff of the two buildlogs:

--
--- b1/build.log	2024-04-09 08:36:44.163498158 +0000
+++ b2/build.log	2024-04-09 08:40:56.448736175 +0000
@@ -1,6 +1,6 @@
 I: pbuilder: network access will be disabled during build
-I: Current time: Mon Apr  8 20:35:14 -12 2024
-I: pbuilder-time-stamp: 1712651714
+I: Current time: Tue May 13 04:59:50 +14 2025
+I: pbuilder-time-stamp: 1747061990
 I: Building the build Environment
 I: extracting base tarball [/var/cache/pbuilder/trixie-reproducible-base.tgz]
 I: copying local configuration
@@ -26,54 +26,86 @@
 dpkg-source: info: unpacking golang-github-araddon-gou_0.0~git20180509.7db4be5-1.1.debian.tar.xz
 I: using fakeroot in build.
 I: Installing the build-deps
-I: user script /srv/workspace/pbuilder/35094/tmp/hooks/D02_print_environment starting
+I: user script /srv/workspace/pbuilder/3948/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 12 15:00 /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/3948/tmp/hooks/D01_modify_environment finished
+I: user script /srv/workspace/pbuilder/3948/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='trixie'
-  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=trixie
+  EUID=0
+  FUNCNAME=([0]="Echo" [1]="main")
+  GROUPS=()
+  HOME=/root
+  HOSTNAME=i-capture-the-hostname
+  HOSTTYPE=i686
+  HOST_ARCH=i386
   IFS=' 	
   '
-  INVOCATION_ID='74555ccd693344b4b5d5ac0e4681dd7c'
-  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='35094'
-  PS1='# '
-  PS2='> '
+  INVOCATION_ID=70c1289a0948495887d7c8da95e1db63
+  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=3948
   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.BiYIuoVb/pbuilderrc_8h7N --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.BiYIuoVb/b1 --logfile b1/build.log golang-github-araddon-gou_0.0~git20180509.7db4be5-1.1.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://78.137.99.97:3128'
+  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.BiYIuoVb/pbuilderrc_wT94 --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.BiYIuoVb/b2 --logfile b2/build.log golang-github-araddon-gou_0.0~git20180509.7db4be5-1.1.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://85.184.249.68:3128
 I: uname -a
-  Linux ionos12-i386 6.1.0-18-amd64 #1 SMP PREEMPT_DYNAMIC Debian 6.1.76-1 (2024-02-01) x86_64 GNU/Linux
+  Linux i-capture-the-hostname 6.1.0-18-amd64 #1 SMP PREEMPT_DYNAMIC Debian 6.1.76-1 (2024-02-01) x86_64 GNU/Linux
 I: ls -l /bin
-  lrwxrwxrwx 1 root root 7 Apr  7 11:25 /bin -> usr/bin
-I: user script /srv/workspace/pbuilder/35094/tmp/hooks/D02_print_environment finished
+  lrwxrwxrwx 1 root root 7 May  9 17:47 /bin -> usr/bin
+I: user script /srv/workspace/pbuilder/3948/tmp/hooks/D02_print_environment finished
  -> Attempting to satisfy build-dependencies
  -> Creating pbuilder-satisfydepends-dummy package
 Package: pbuilder-satisfydepends-dummy
@@ -156,7 +188,7 @@
 Get: 39 http://deb.debian.org/debian trixie/main i386 golang-github-stretchr-objx-dev all 0.5.0-1 [25.5 kB]
 Get: 40 http://deb.debian.org/debian trixie/main i386 golang-gopkg-yaml.v3-dev all 3.0.1-3 [74.3 kB]
 Get: 41 http://deb.debian.org/debian trixie/main i386 golang-github-stretchr-testify-dev all 1.8.4-1 [71.8 kB]
-Fetched 61.2 MB in 1s (52.1 MB/s)
+Fetched 61.2 MB in 2s (35.5 MB/s)
 debconf: delaying package configuration, since apt-utils is not installed
 Selecting previously unselected package sensible-utils.
 (Reading database ... 
(Reading database ... 5%
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(Reading database ... 85%
(Reading database ... 90%
(Reading database ... 95%
(Reading database ... 100%
(Reading database ... 19875 files and directories currently installed.)
@@ -340,7 +372,11 @@
 fakeroot is already the newest version (1.33-1).
 0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
 I: Building the package
-I: Running cd /build/reproducible-path/golang-github-araddon-gou-0.0~git20180509.7db4be5/ && 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-araddon-gou_0.0~git20180509.7db4be5-1.1_source.changes
+I: user script /srv/workspace/pbuilder/3948/tmp/hooks/A99_set_merged_usr starting
+Not re-configuring usrmerge for trixie
+I: user script /srv/workspace/pbuilder/3948/tmp/hooks/A99_set_merged_usr finished
+hostname: Name or service not known
+I: Running cd /build/reproducible-path/golang-github-araddon-gou-0.0~git20180509.7db4be5/ && 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-araddon-gou_0.0~git20180509.7db4be5-1.1_source.changes
 dpkg-buildpackage: info: source package golang-github-araddon-gou
 dpkg-buildpackage: info: source version 0.0~git20180509.7db4be5-1.1
 dpkg-buildpackage: info: source distribution unstable
@@ -358,146 +394,146 @@
    dh_autoreconf -O--buildsystem=golang
    dh_auto_configure -O--buildsystem=golang
    dh_auto_build -O--buildsystem=golang
-	cd obj-i686-linux-gnu && go install -trimpath -v -p 11 github.com/araddon/gou
-internal/godebugs
-internal/coverage/rtcov
-internal/unsafeheader
-internal/goarch
+	cd obj-i686-linux-gnu && go install -trimpath -v -p 21 github.com/araddon/gou
 internal/goos
+internal/goarch
 internal/race
+internal/unsafeheader
 internal/goexperiment
-internal/cpu
-runtime/internal/syscall
-runtime/internal/atomic
-internal/chacha8rand
-runtime/internal/math
-sync/atomic
-internal/abi
-runtime/internal/sys
-unicode/utf8
-unicode
 internal/itoa
+internal/godebugs
 math/bits
 crypto/internal/alias
-crypto/internal/boring/sig
-cmp
-encoding
-unicode/utf16
-log/internal
+internal/coverage/rtcov
 container/list
+unicode/utf8
 vendor/golang.org/x/crypto/cryptobyte/asn1
-slices
+unicode
 internal/nettrace
+internal/cpu
+runtime/internal/atomic
 vendor/golang.org/x/crypto/internal/alias
+runtime/internal/syscall
+encoding
+log/internal
+sync/atomic
+unicode/utf16
+cmp
+crypto/internal/boring/sig
+internal/chacha8rand
+runtime/internal/math
+internal/abi
+slices
 math
+runtime/internal/sys
 internal/bytealg
 runtime
+crypto/subtle
 internal/reflectlite
 sync
-crypto/subtle
-internal/testlog
 internal/bisect
+internal/testlog
 internal/singleflight
+internal/godebug
+math/rand
+internal/intern
 runtime/cgo
-errors
 sort
-io
-internal/oserror
-internal/godebug
-strconv
+errors
 internal/safefilepath
+io
 vendor/golang.org/x/net/dns/dnsmessage
+internal/oserror
 path
-syscall
 crypto/internal/nistec/fiat
-math/rand
-internal/intern
+strconv
+crypto/internal/randutil
 bytes
 hash
-crypto/internal/randutil
 strings
+syscall
+net/http/internal/ascii
 hash/crc32
+vendor/golang.org/x/text/transform
+bufio
 crypto
-reflect
 crypto/rc4
 net/netip
-vendor/golang.org/x/text/transform
-bufio
-net/http/internal/ascii
-internal/syscall/unix
+reflect
 internal/syscall/execenv
 time
+internal/syscall/unix
 crypto/internal/nistec
-internal/fmtsort
-encoding/binary
 context
 io/fs
 internal/poll
+os
+internal/fmtsort
+encoding/binary
+crypto/cipher
 crypto/md5
 encoding/base64
-crypto/cipher
-crypto/internal/edwards25519/field
 vendor/golang.org/x/crypto/internal/poly1305
-os
+crypto/internal/edwards25519/field
 encoding/pem
-crypto/internal/boring
-crypto/des
-vendor/golang.org/x/crypto/chacha20
 crypto/internal/edwards25519
-crypto/aes
+io/ioutil
+path/filepath
+fmt
+vendor/golang.org/x/crypto/chacha20
+crypto/des
+crypto/internal/boring
 crypto/ecdh
-crypto/sha512
-crypto/hmac
 crypto/sha1
+crypto/hmac
+crypto/aes
+crypto/sha512
 crypto/sha256
-vendor/golang.org/x/crypto/hkdf
 vendor/golang.org/x/crypto/chacha20poly1305
-io/ioutil
-fmt
-path/filepath
 net
+vendor/golang.org/x/crypto/hkdf
 log
-compress/flate
+mime/quotedprintable
 encoding/json
+net/http/internal
+compress/flate
 encoding/hex
 net/url
-vendor/golang.org/x/net/http2/hpack
 mime
+vendor/golang.org/x/net/http2/hpack
 vendor/golang.org/x/text/unicode/norm
 math/big
-mime/quotedprintable
-net/http/internal
-vendor/golang.org/x/text/unicode/bidi
 compress/gzip
+vendor/golang.org/x/text/unicode/bidi
 vendor/golang.org/x/text/secure/bidirule
 vendor/golang.org/x/net/idna
 crypto/rand
+crypto/internal/bigmod
 crypto/internal/boring/bbig
 crypto/dsa
-encoding/asn1
-crypto/internal/bigmod
 crypto/elliptic
+encoding/asn1
 crypto/ed25519
 crypto/rsa
-vendor/golang.org/x/crypto/cryptobyte
 crypto/x509/pkix
+vendor/golang.org/x/crypto/cryptobyte
 crypto/ecdsa
-net/textproto
 vendor/golang.org/x/net/http/httpproxy
+net/textproto
 crypto/x509
-mime/multipart
 vendor/golang.org/x/net/http/httpguts
+mime/multipart
 crypto/tls
 net/http/httptrace
 net/http
 github.com/araddon/gou
    dh_auto_test -O--buildsystem=golang
-	cd obj-i686-linux-gnu && go test -vet=off -v -p 11 github.com/araddon/gou
+	cd obj-i686-linux-gnu && go test -vet=off -v -p 21 github.com/araddon/gou
 === RUN   TestCoerce
 --- PASS: TestCoerce (0.00s)
 === RUN   TestJsonRawWriter
-2024/04/09 08:36:32.130030 jsonhelper_test.go:60: {}
-2024/04/09 08:36:32.130147 jsonhelper_test.go:62: "hello"
+2025/05/12 15:03:32.964349 jsonhelper_test.go:60: {}
+2025/05/12 15:03:32.964790 jsonhelper_test.go:62: "hello"
 --- PASS: TestJsonRawWriter (0.00s)
 === RUN   TestJsonHelper
 --- PASS: TestJsonHelper (0.00s)
@@ -514,13 +550,13 @@
 === RUN   TestWaitFor
 --- PASS: TestWaitFor (1.00s)
 === RUN   TestThrottleer
---- PASS: TestThrottleer (2.10s)
+--- PASS: TestThrottleer (2.14s)
 === RUN   TestThrottler2
---- PASS: TestThrottler2 (1.00s)
+--- PASS: TestThrottler2 (1.01s)
 === RUN   TestUid
 --- PASS: TestUid (0.00s)
 PASS
-ok  	github.com/araddon/gou	5.126s
+ok  	github.com/araddon/gou	5.180s
    create-stamp debian/debhelper-build-stamp
  fakeroot debian/rules binary
 dh binary --buildsystem=golang --with=golang
@@ -549,12 +585,14 @@
 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/3948/tmp/hooks/B01_cleanup starting
+I: user script /srv/workspace/pbuilder/3948/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/35094 and its subdirectories
-I: Current time: Mon Apr  8 20:36:43 -12 2024
-I: pbuilder-time-stamp: 1712651803
+I: removing directory /srv/workspace/pbuilder/3948 and its subdirectories
+I: Current time: Tue May 13 05:03:51 +14 2025
+I: pbuilder-time-stamp: 1747062231