Diff of the two buildlogs:

--
--- b1/build.log	2024-04-27 23:30:21.073122938 +0000
+++ b2/build.log	2024-04-27 23:33:17.021613506 +0000
@@ -1,6 +1,6 @@
 I: pbuilder: network access will be disabled during build
-I: Current time: Sat Apr 27 11:27:34 -12 2024
-I: pbuilder-time-stamp: 1714260454
+I: Current time: Sun Apr 28 13:30:40 +14 2024
+I: pbuilder-time-stamp: 1714260640
 I: Building the build Environment
 I: extracting base tarball [/var/cache/pbuilder/trixie-reproducible-base.tgz]
 I: copying local configuration
@@ -25,52 +25,84 @@
 dpkg-source: info: unpacking canid_0.0~git20180613.007c9af-2.debian.tar.xz
 I: using fakeroot in build.
 I: Installing the build-deps
-I: user script /srv/workspace/pbuilder/14916/tmp/hooks/D02_print_environment starting
+I: user script /srv/workspace/pbuilder/31943/tmp/hooks/D01_modify_environment starting
+debug: Running on virt32c.
+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 27 23:31 /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/31943/tmp/hooks/D01_modify_environment finished
+I: user script /srv/workspace/pbuilder/31943/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='armhf'
-  DEBIAN_FRONTEND='noninteractive'
-  DEB_BUILD_OPTIONS='buildinfo=+all reproducible=+all parallel=3 '
-  DISTRIBUTION='trixie'
-  HOME='/root'
-  HOST_ARCH='armhf'
+  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]="arm-unknown-linux-gnueabihf")
+  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=armhf
+  DEBIAN_FRONTEND=noninteractive
+  DEB_BUILD_OPTIONS='buildinfo=+all reproducible=+all parallel=4 '
+  DIRSTACK=()
+  DISTRIBUTION=trixie
+  EUID=0
+  FUNCNAME=([0]="Echo" [1]="main")
+  GROUPS=()
+  HOME=/root
+  HOSTNAME=i-capture-the-hostname
+  HOSTTYPE=arm
+  HOST_ARCH=armhf
   IFS=' 	
   '
-  INVOCATION_ID='2c073660db0d41d2a410e6d907f5c779'
-  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='14916'
-  PS1='# '
-  PS2='> '
+  INVOCATION_ID=d127b80e30df4eeba3a4d0e78c051bbb
+  LANG=C
+  LANGUAGE=it_CH:it
+  LC_ALL=C
+  MACHTYPE=arm-unknown-linux-gnueabihf
+  MAIL=/var/mail/root
+  OPTERR=1
+  OPTIND=1
+  OSTYPE=linux-gnueabihf
+  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=31943
   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.9rIc3XBA/pbuilderrc_sF6r --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.9rIc3XBA/b1 --logfile b1/build.log canid_0.0~git20180613.007c9af-2.dsc'
-  SUDO_GID='113'
-  SUDO_UID='107'
-  SUDO_USER='jenkins'
-  TERM='unknown'
-  TZ='/usr/share/zoneinfo/Etc/GMT+12'
-  USER='root'
-  _='/usr/bin/systemd-run'
-  http_proxy='http://10.0.0.15:3142/'
+  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.9rIc3XBA/pbuilderrc_OSux --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.9rIc3XBA/b2 --logfile b2/build.log canid_0.0~git20180613.007c9af-2.dsc'
+  SUDO_GID=113
+  SUDO_UID=107
+  SUDO_USER=jenkins
+  TERM=unknown
+  TZ=/usr/share/zoneinfo/Etc/GMT-14
+  UID=0
+  USER=root
+  _='I: set'
+  http_proxy=http://10.0.0.15:3142/
 I: uname -a
-  Linux virt64c 6.1.0-20-arm64 #1 SMP Debian 6.1.85-1 (2024-04-11) aarch64 GNU/Linux
+  Linux i-capture-the-hostname 6.1.0-20-armmp-lpae #1 SMP Debian 6.1.85-1 (2024-04-11) armv7l GNU/Linux
 I: ls -l /bin
-  lrwxrwxrwx 1 root root 7 Apr 25 11:27 /bin -> usr/bin
-I: user script /srv/workspace/pbuilder/14916/tmp/hooks/D02_print_environment finished
+  lrwxrwxrwx 1 root root 7 Apr 27 11:24 /bin -> usr/bin
+I: user script /srv/workspace/pbuilder/31943/tmp/hooks/D02_print_environment finished
  -> Attempting to satisfy build-dependencies
  -> Creating pbuilder-satisfydepends-dummy package
 Package: pbuilder-satisfydepends-dummy
@@ -146,7 +178,7 @@
 Get: 34 http://deb.debian.org/debian trixie/main armhf golang-src all 2:1.22~3 [5020 B]
 Get: 35 http://deb.debian.org/debian trixie/main armhf golang-go armhf 2:1.22~3 [44.2 kB]
 Get: 36 http://deb.debian.org/debian trixie/main armhf golang-any armhf 2:1.22~3 [5104 B]
-Fetched 58.7 MB in 1s (50.8 MB/s)
+Fetched 58.7 MB in 2s (37.9 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 ... 19469 files and directories currently installed.)
@@ -310,7 +342,11 @@
 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/canid-0.0~git20180613.007c9af/ && 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  > ../canid_0.0~git20180613.007c9af-2_source.changes
+I: user script /srv/workspace/pbuilder/31943/tmp/hooks/A99_set_merged_usr starting
+Not re-configuring usrmerge for trixie
+I: user script /srv/workspace/pbuilder/31943/tmp/hooks/A99_set_merged_usr finished
+hostname: Name or service not known
+I: Running cd /build/reproducible-path/canid-0.0~git20180613.007c9af/ && 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  > ../canid_0.0~git20180613.007c9af-2_source.changes
 dpkg-buildpackage: info: source package canid
 dpkg-buildpackage: info: source version 0.0~git20180613.007c9af-2
 dpkg-buildpackage: info: source distribution unstable
@@ -328,16 +364,16 @@
    dh_autoreconf -O--buildsystem=golang
    dh_auto_configure -O--buildsystem=golang
    dh_auto_build -O--buildsystem=golang
-	cd obj-arm-linux-gnueabihf && go install -trimpath -v -p 3 github.com/britram/canid github.com/britram/canid/canid
+	cd obj-arm-linux-gnueabihf && go install -trimpath -v -p 4 github.com/britram/canid github.com/britram/canid/canid
+internal/coverage/rtcov
 internal/goarch
-internal/unsafeheader
 internal/cpu
-internal/coverage/rtcov
+internal/unsafeheader
 internal/abi
 internal/chacha8rand
-internal/bytealg
 internal/godebugs
 internal/goexperiment
+internal/bytealg
 internal/goos
 runtime/internal/atomic
 runtime/internal/math
@@ -349,15 +385,15 @@
 unicode/utf8
 encoding
 math/bits
-runtime
-math
 internal/itoa
 cmp
 slices
+math
 unicode/utf16
 log/internal
 internal/nettrace
 container/list
+runtime
 crypto/internal/alias
 crypto/internal/boring/sig
 vendor/golang.org/x/crypto/cryptobyte/asn1
@@ -365,106 +401,106 @@
 crypto/subtle
 internal/reflectlite
 sync
-internal/bisect
 internal/testlog
+internal/bisect
 internal/singleflight
 runtime/cgo
-internal/godebug
 errors
+internal/godebug
 sort
 io
-bytes
 strconv
 internal/oserror
+bytes
 syscall
-reflect
-internal/syscall/unix
-time
 internal/safefilepath
-internal/syscall/execenv
+reflect
 path
 strings
 vendor/golang.org/x/net/dns/dnsmessage
-internal/poll
+internal/syscall/unix
+time
+internal/syscall/execenv
+internal/intern
+net/netip
+bufio
 encoding/binary
-encoding/base64
 internal/fmtsort
+internal/poll
 io/fs
 context
-internal/intern
-net/netip
+encoding/base64
 os
-bufio
 hash
+crypto/cipher
 hash/crc32
 crypto
-crypto/cipher
 crypto/internal/randutil
 math/rand
 crypto/internal/boring
 crypto/aes
 crypto/des
-fmt
-net
 crypto/internal/edwards25519/field
 crypto/internal/nistec/fiat
-encoding/json
-log
-compress/flate
-compress/gzip
-math/big
-crypto/internal/nistec
-crypto/ecdh
 crypto/sha512
-crypto/internal/edwards25519
-crypto/rand
-crypto/elliptic
-crypto/internal/bigmod
-crypto/internal/boring/bbig
-encoding/asn1
-crypto/ed25519
 crypto/hmac
+crypto/internal/edwards25519
 crypto/md5
+fmt
+net
 crypto/rc4
-crypto/rsa
-vendor/golang.org/x/crypto/cryptobyte
 crypto/sha1
-crypto/ecdsa
 crypto/sha256
-crypto/dsa
-encoding/hex
-crypto/x509/pkix
 encoding/pem
-net/url
 path/filepath
+encoding/json
+log
+compress/flate
+compress/gzip
+math/big
+crypto/internal/nistec
+encoding/hex
+net/url
 vendor/golang.org/x/crypto/chacha20
 vendor/golang.org/x/crypto/internal/poly1305
-crypto/x509
+crypto/ecdh
+vendor/golang.org/x/crypto/chacha20poly1305
 vendor/golang.org/x/crypto/hkdf
 vendor/golang.org/x/text/transform
-vendor/golang.org/x/crypto/chacha20poly1305
 vendor/golang.org/x/text/unicode/bidi
 vendor/golang.org/x/text/unicode/norm
+crypto/rand
+crypto/elliptic
+crypto/internal/bigmod
+crypto/internal/boring/bbig
+encoding/asn1
+crypto/ed25519
+crypto/dsa
+crypto/rsa
 vendor/golang.org/x/text/secure/bidirule
-net/textproto
-vendor/golang.org/x/net/http2/hpack
 vendor/golang.org/x/net/idna
-crypto/tls
+vendor/golang.org/x/net/http2/hpack
+vendor/golang.org/x/crypto/cryptobyte
+crypto/x509/pkix
 mime
+crypto/ecdsa
 mime/quotedprintable
-vendor/golang.org/x/net/http/httpguts
-vendor/golang.org/x/net/http/httpproxy
-mime/multipart
 net/http/internal
 net/http/internal/ascii
 flag
 os/signal
+vendor/golang.org/x/net/http/httpproxy
+net/textproto
+crypto/x509
+vendor/golang.org/x/net/http/httpguts
+mime/multipart
+crypto/tls
 net/http/httptrace
 net/http
 github.com/britram/canid
 github.com/britram/canid/canid
    dh_auto_test -O--buildsystem=golang
-	cd obj-arm-linux-gnueabihf && go test -vet=off -v -p 3 github.com/britram/canid github.com/britram/canid/canid
+	cd obj-arm-linux-gnueabihf && go test -vet=off -v -p 4 github.com/britram/canid github.com/britram/canid/canid
 ?   	github.com/britram/canid	[no test files]
 ?   	github.com/britram/canid/canid	[no test files]
    create-stamp debian/debhelper-build-stamp
@@ -507,12 +543,14 @@
 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/31943/tmp/hooks/B01_cleanup starting
+I: user script /srv/workspace/pbuilder/31943/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/14916 and its subdirectories
-I: Current time: Sat Apr 27 11:30:17 -12 2024
-I: pbuilder-time-stamp: 1714260617
+I: removing directory /srv/workspace/pbuilder/31943 and its subdirectories
+I: Current time: Sun Apr 28 13:33:13 +14 2024
+I: pbuilder-time-stamp: 1714260793