Diff of the two buildlogs:

--
--- b1/build.log	2025-01-12 22:05:06.784656146 +0000
+++ b2/build.log	2025-01-12 22:13:01.675007798 +0000
@@ -1,6 +1,6 @@
 I: pbuilder: network access will be disabled during build
-I: Current time: Sun Jan 12 10:01:55 -12 2025
-I: pbuilder-time-stamp: 1736719315
+I: Current time: Mon Jan 13 12:05:23 +14 2025
+I: pbuilder-time-stamp: 1736719523
 I: Building the build Environment
 I: extracting base tarball [/var/cache/pbuilder/trixie-reproducible-base.tgz]
 I: copying local configuration
@@ -22,52 +22,84 @@
 dpkg-source: info: unpacking dnscrypt-proxy_2.1.5+ds1-2.debian.tar.xz
 I: Not using root during the build.
 I: Installing the build-deps
-I: user script /srv/workspace/pbuilder/17586/tmp/hooks/D02_print_environment starting
+I: user script /srv/workspace/pbuilder/28054/tmp/hooks/D01_modify_environment starting
+debug: Running on ff64a.
+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 Jan 12 22:06 /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/28054/tmp/hooks/D01_modify_environment finished
+I: user script /srv/workspace/pbuilder/28054/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]="37" [3]="1" [4]="release" [5]="arm-unknown-linux-gnueabihf")
+  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=armhf
+  DEBIAN_FRONTEND=noninteractive
+  DEB_BUILD_OPTIONS='buildinfo=+all reproducible=+all parallel=6 '
+  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='c8937fac5f0b49738ff664789a56b71c'
-  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='17586'
-  PS1='# '
-  PS2='> '
+  INVOCATION_ID=ff8eca8be9eb4d35962b85256ee31ed5
+  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=28054
   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.mmvLdNIH/pbuilderrc_QcWE --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.mmvLdNIH/b1 --logfile b1/build.log dnscrypt-proxy_2.1.5+ds1-2.dsc'
-  SUDO_GID='110'
-  SUDO_UID='103'
-  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.mmvLdNIH/pbuilderrc_HbQG --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.mmvLdNIH/b2 --logfile b2/build.log dnscrypt-proxy_2.1.5+ds1-2.dsc'
+  SUDO_GID=114
+  SUDO_UID=109
+  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 virt32z 6.1.0-29-armmp-lpae #1 SMP Debian 6.1.123-1 (2025-01-02) armv7l GNU/Linux
+  Linux i-capture-the-hostname 6.1.0-29-arm64 #1 SMP Debian 6.1.123-1 (2025-01-02) aarch64 GNU/Linux
 I: ls -l /bin
   lrwxrwxrwx 1 root root 7 Nov 22 14:40 /bin -> usr/bin
-I: user script /srv/workspace/pbuilder/17586/tmp/hooks/D02_print_environment finished
+I: user script /srv/workspace/pbuilder/28054/tmp/hooks/D02_print_environment finished
  -> Attempting to satisfy build-dependencies
  -> Creating pbuilder-satisfydepends-dummy package
 Package: pbuilder-satisfydepends-dummy
@@ -313,7 +345,7 @@
 Get: 140 http://deb.debian.org/debian trixie/main armhf golang-github-vividcortex-ewma-dev all 1.1.1-2 [5384 B]
 Get: 141 http://deb.debian.org/debian trixie/main armhf golang-github-vividcortex-godaemon-dev all 0.0~git20210427.f8c5ec7-1 [8220 B]
 Get: 142 http://deb.debian.org/debian trixie/main armhf golang-gopkg-natefinch-lumberjack.v2-dev all 2.1-2 [13.1 kB]
-Fetched 138 MB in 18s (7579 kB/s)
+Fetched 138 MB in 5s (25.3 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 ... 19567 files and directories currently installed.)
@@ -896,7 +928,11 @@
 Building tag database...
  -> Finished parsing the build-deps
 I: Building the package
-I: Running cd /build/reproducible-path/dnscrypt-proxy-2.1.5+ds1/ && 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  > ../dnscrypt-proxy_2.1.5+ds1-2_source.changes
+I: user script /srv/workspace/pbuilder/28054/tmp/hooks/A99_set_merged_usr starting
+Not re-configuring usrmerge for trixie
+I: user script /srv/workspace/pbuilder/28054/tmp/hooks/A99_set_merged_usr finished
+hostname: Name or service not known
+I: Running cd /build/reproducible-path/dnscrypt-proxy-2.1.5+ds1/ && 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  > ../dnscrypt-proxy_2.1.5+ds1-2_source.changes
 dpkg-buildpackage: info: source package dnscrypt-proxy
 dpkg-buildpackage: info: source version 2.1.5+ds1-2
 dpkg-buildpackage: info: source distribution unstable
@@ -914,43 +950,42 @@
    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 3 github.com/DNSCrypt/dnscrypt-proxy/dnscrypt-proxy
-internal/goarch
+	cd _build && go install -trimpath -v -p 6 github.com/DNSCrypt/dnscrypt-proxy/dnscrypt-proxy
 internal/unsafeheader
-internal/cpu
-internal/byteorder
-internal/abi
-internal/chacha8rand
-internal/bytealg
-internal/coverage/rtcov
 internal/godebugs
+internal/coverage/rtcov
+internal/goarch
+internal/byteorder
+internal/cpu
 internal/goexperiment
 internal/goos
+internal/abi
 internal/profilerecord
-internal/runtime/atomic
 internal/runtime/syscall
-internal/stringslite
 runtime/internal/math
-internal/runtime/exithook
+internal/chacha8rand
 runtime/internal/sys
 internal/race
 sync/atomic
+internal/bytealg
+internal/runtime/atomic
 unicode
-runtime
 unicode/utf8
 internal/asan
+internal/stringslite
 internal/itoa
 internal/msan
 math/bits
-math
 crypto/internal/alias
 crypto/internal/boring/sig
 cmp
+internal/runtime/exithook
 container/list
 unicode/utf16
 vendor/golang.org/x/crypto/cryptobyte/asn1
 vendor/golang.org/x/crypto/internal/alias
 internal/nettrace
+math
 encoding
 github.com/VividCortex/ewma
 log/internal
@@ -959,184 +994,185 @@
 github.com/quic-go/quic-go/internal/utils/ringbuffer
 log/slog/internal
 golang.org/x/crypto/salsa20/salsa
+runtime
+internal/weak
 crypto/subtle
 internal/reflectlite
-sync
 iter
-slices
-internal/weak
+sync
 maps
-internal/testlog
+slices
 internal/bisect
+internal/testlog
 internal/singleflight
-errors
-internal/godebug
-io
+github.com/quic-go/quic-go/internal/utils/linkedlist
 runtime/cgo
+log/slog/internal/buffer
+internal/godebug
+errors
+sort
 internal/oserror
+io
+path
+strconv
 syscall
+math/rand
+crypto/internal/edwards25519/field
 bytes
 hash
-strconv
+crypto/internal/randutil
+strings
+crypto/internal/nistec/fiat
 crypto
 crypto/cipher
-time
-crypto/internal/boring
-crypto/internal/randutil
-internal/syscall/unix
 reflect
-context
-path
-io/fs
-internal/filepathlite
-internal/poll
-internal/syscall/execenv
-os
-internal/fmtsort
-math/rand
-strings
-fmt
+crypto/internal/boring
 crypto/sha256
 crypto/sha512
 crypto/aes
 crypto/des
-crypto/internal/edwards25519/field
-crypto/internal/nistec/fiat
 crypto/internal/edwards25519
-math/big
 crypto/hmac
-encoding/binary
-vendor/golang.org/x/crypto/chacha20
-vendor/golang.org/x/crypto/internal/poly1305
-vendor/golang.org/x/crypto/chacha20poly1305
 vendor/golang.org/x/crypto/hkdf
-vendor/golang.org/x/sys/cpu
-vendor/golang.org/x/crypto/sha3
-crypto/rand
-crypto/internal/bigmod
-crypto/internal/boring/bbig
-encoding/asn1
-crypto/internal/nistec
-crypto/ed25519
-crypto/internal/mlkem768
-vendor/golang.org/x/crypto/cryptobyte
 crypto/md5
-crypto/ecdh
-crypto/elliptic
-crypto/internal/hpke
+time
+internal/syscall/unix
+internal/syscall/execenv
 crypto/rc4
-crypto/rsa
 crypto/sha1
-crypto/ecdsa
-crypto/dsa
-encoding/hex
-encoding/base64
-crypto/x509/pkix
-encoding/pem
 vendor/golang.org/x/net/dns/dnsmessage
 math/rand/v2
-sort
 internal/concurrent
 unique
-net/url
-net/netip
-path/filepath
-encoding/json
-flag
-net
 bufio
-github.com/BurntSushi/toml/internal
+net/netip
 encoding/base32
-github.com/dchest/safefile
-github.com/BurntSushi/toml
 github.com/hashicorp/golang-lru/simplelru
 github.com/hashicorp/go-immutable-radix
-github.com/hashicorp/golang-lru
-log
+golang.org/x/crypto/hkdf
+regexp/syntax
+context
+io/fs
+internal/poll
+crypto/internal/nistec
+internal/fmtsort
+internal/filepathlite
+encoding/binary
+github.com/BurntSushi/toml/internal
 github.com/jedisct1/go-clocksmith
+hash/crc32
+golang.org/x/text/transform
+vendor/golang.org/x/text/transform
+os
+net/http/internal/ascii
+regexp
+vendor/golang.org/x/crypto/chacha20
+vendor/golang.org/x/crypto/internal/poly1305
+encoding/base64
 golang.org/x/crypto/chacha20
+crypto/ecdh
+vendor/golang.org/x/crypto/chacha20poly1305
+encoding/pem
 golang.org/x/crypto/internal/poly1305
+golang.org/x/crypto/blake2b
 golang.org/x/crypto/curve25519
+golang.org/x/sys/unix
 golang.org/x/crypto/chacha20poly1305
-golang.org/x/crypto/hkdf
-golang.org/x/crypto/blake2b
-github.com/jedisct1/go-hpke-compact
-golang.org/x/crypto/ed25519
-io/ioutil
 golang.org/x/crypto/poly1305
-github.com/jedisct1/xsecretbox
-os/exec
-github.com/jedisct1/go-minisign
+golang.org/x/exp/rand
+golang.org/x/crypto/nacl/secretbox
+vendor/golang.org/x/sys/cpu
+io/ioutil
+path/filepath
+fmt
+net
+vendor/golang.org/x/crypto/sha3
 os/signal
-regexp/syntax
+os/exec
+encoding/hex
+net/url
+encoding/json
+math/big
+flag
+github.com/hashicorp/golang-lru
+log
 text/template/parse
-regexp
-text/template
 golang.org/x/net/bpf
-golang.org/x/sys/unix
-golang.org/x/exp/rand
-github.com/quic-go/quic-go/internal/protocol
-github.com/quic-go/quic-go/internal/utils
+github.com/BurntSushi/toml
 github.com/quic-go/quic-go/quicvarint
-github.com/quic-go/quic-go/internal/utils/linkedlist
 compress/flate
-hash/crc32
-compress/gzip
 golang.org/x/net/http2/hpack
 github.com/quic-go/qpack
-golang.org/x/text/transform
-crypto/x509
-github.com/coreos/go-systemd/daemon
-log/syslog
-github.com/jedisct1/go-dnsstamps
-github.com/hashicorp/go-syslog
-github.com/k-sone/critbitgo
-github.com/jedisct1/dlog
-github.com/kardianos/service
-golang.org/x/net/internal/socket
-golang.org/x/net/ipv4
-golang.org/x/net/ipv6
+text/template
+crypto/rand
+crypto/elliptic
+crypto/internal/bigmod
+crypto/internal/boring/bbig
+encoding/asn1
+crypto/ed25519
+crypto/internal/hpke
+crypto/internal/mlkem768
+crypto/rsa
+vendor/golang.org/x/crypto/cryptobyte
+crypto/dsa
+crypto/x509/pkix
+github.com/dchest/safefile
+github.com/jedisct1/go-hpke-compact
+golang.org/x/crypto/ed25519
+github.com/jedisct1/go-minisign
+github.com/jedisct1/xsecretbox
+github.com/quic-go/quic-go/internal/protocol
+compress/gzip
 golang.org/x/text/unicode/bidi
-crypto/tls
 golang.org/x/text/unicode/norm
-golang.org/x/text/secure/bidirule
-net/textproto
-log/slog/internal/buffer
 log/slog
-vendor/golang.org/x/text/transform
-golang.org/x/net/idna
+github.com/quic-go/quic-go/internal/utils
+crypto/ecdsa
 vendor/golang.org/x/text/unicode/bidi
-vendor/golang.org/x/text/secure/bidirule
-golang.org/x/net/http/httpguts
+golang.org/x/text/secure/bidirule
 vendor/golang.org/x/text/unicode/norm
 vendor/golang.org/x/net/http2/hpack
 mime
+vendor/golang.org/x/text/secure/bidirule
 mime/quotedprintable
+net/http/internal
+golang.org/x/crypto/nacl/box
+gopkg.in/natefinch/lumberjack.v2
+os/user
+golang.org/x/net/idna
 vendor/golang.org/x/net/idna
+github.com/coreos/go-systemd/daemon
+github.com/jedisct1/go-dnsstamps
+log/syslog
+crypto/x509
+github.com/k-sone/critbitgo
+github.com/hashicorp/go-syslog
+github.com/kardianos/service
+golang.org/x/net/internal/socket
+net/textproto
+github.com/jedisct1/dlog
+vendor/golang.org/x/net/http/httpproxy
+golang.org/x/net/http/httpguts
+vendor/golang.org/x/net/http/httpguts
 mime/multipart
+golang.org/x/net/internal/socks
+golang.org/x/net/ipv4
+golang.org/x/net/ipv6
+golang.org/x/net/proxy
+crypto/tls
 github.com/coreos/go-systemd/activation
-github.com/miekg/dns
+net/http/httptrace
 github.com/quic-go/quic-go/internal/qerr
-github.com/quic-go/quic-go/internal/wire
-github.com/quic-go/quic-go/internal/flowcontrol
 github.com/quic-go/quic-go/internal/qtls
-vendor/golang.org/x/net/http/httpguts
-vendor/golang.org/x/net/http/httpproxy
+github.com/miekg/dns
+github.com/quic-go/quic-go/internal/flowcontrol
+github.com/quic-go/quic-go/internal/wire
+net/http
 github.com/quic-go/quic-go/logging
-net/http/httptrace
 github.com/quic-go/quic-go/internal/congestion
 github.com/quic-go/quic-go/internal/handshake
 github.com/quic-go/quic-go/internal/ackhandler
-net/http/internal
-net/http/internal/ascii
 github.com/quic-go/quic-go
-net/http
-golang.org/x/net/internal/socks
-golang.org/x/crypto/nacl/secretbox
-golang.org/x/crypto/nacl/box
-golang.org/x/net/proxy
-gopkg.in/natefinch/lumberjack.v2
-os/user
 github.com/quic-go/quic-go/http3
 golang.org/x/net/http2
 github.com/DNSCrypt/dnscrypt-proxy/dnscrypt-proxy
@@ -1183,12 +1219,14 @@
 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/28054/tmp/hooks/B01_cleanup starting
+I: user script /srv/workspace/pbuilder/28054/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/17586 and its subdirectories
-I: Current time: Sun Jan 12 10:05:03 -12 2025
-I: pbuilder-time-stamp: 1736719503
+I: removing directory /srv/workspace/pbuilder/28054 and its subdirectories
+I: Current time: Mon Jan 13 12:12:56 +14 2025
+I: pbuilder-time-stamp: 1736719976