Diff of the two buildlogs:

--
--- b1/build.log	2024-10-12 02:22:29.470751856 +0000
+++ b2/build.log	2024-10-12 02:32:48.040492595 +0000
@@ -1,6 +1,6 @@
 I: pbuilder: network access will be disabled during build
-I: Current time: Fri Oct 11 14:12:53 -12 2024
-I: pbuilder-time-stamp: 1728699173
+I: Current time: Sat Oct 12 16:22:42 +14 2024
+I: pbuilder-time-stamp: 1728699762
 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-victoriametrics-metrics_1.35.1+ds1-1.debian.tar.xz
 I: Not using root during the build.
 I: Installing the build-deps
-I: user script /srv/workspace/pbuilder/9485/tmp/hooks/D02_print_environment starting
+I: user script /srv/workspace/pbuilder/24047/tmp/hooks/D01_modify_environment starting
+debug: Running on virt64b.
+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 Oct 12 02:23 /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/24047/tmp/hooks/D01_modify_environment finished
+I: user script /srv/workspace/pbuilder/24047/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='unstable'
-  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]="32" [3]="1" [4]="release" [5]="arm-unknown-linux-gnueabihf")
+  BASH_VERSION='5.2.32(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=unstable
+  EUID=0
+  FUNCNAME=([0]="Echo" [1]="main")
+  GROUPS=()
+  HOME=/root
+  HOSTNAME=i-capture-the-hostname
+  HOSTTYPE=arm
+  HOST_ARCH=armhf
   IFS=' 	
   '
-  INVOCATION_ID='8ffbfa9dc11b426da484862ad717cfde'
-  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='9485'
-  PS1='# '
-  PS2='> '
+  INVOCATION_ID=621aeb1572314f7489acae02068479f0
+  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=24047
   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.ufJul9H5/pbuilderrc_k6RO --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.ufJul9H5/b1 --logfile b1/build.log golang-github-victoriametrics-metrics_1.35.1+ds1-1.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.ufJul9H5/pbuilderrc_dxFF --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.ufJul9H5/b2 --logfile b2/build.log golang-github-victoriametrics-metrics_1.35.1+ds1-1.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 wbq0 6.1.0-26-armmp #1 SMP Debian 6.1.112-1 (2024-09-30) armv7l GNU/Linux
+  Linux i-capture-the-hostname 6.1.0-26-arm64 #1 SMP Debian 6.1.112-1 (2024-09-30) aarch64 GNU/Linux
 I: ls -l /bin
   lrwxrwxrwx 1 root root 7 Aug  4 21:30 /bin -> usr/bin
-I: user script /srv/workspace/pbuilder/9485/tmp/hooks/D02_print_environment finished
+I: user script /srv/workspace/pbuilder/24047/tmp/hooks/D02_print_environment finished
  -> Attempting to satisfy build-dependencies
  -> Creating pbuilder-satisfydepends-dummy package
 Package: pbuilder-satisfydepends-dummy
@@ -149,7 +181,7 @@
 Get: 35 http://deb.debian.org/debian unstable/main armhf golang-any armhf 2:1.23~2 [5172 B]
 Get: 36 http://deb.debian.org/debian unstable/main armhf golang-github-valyala-fastrand-dev all 1.1.0-3 [4248 B]
 Get: 37 http://deb.debian.org/debian unstable/main armhf golang-github-valyala-histogram-dev all 1.2.0+ds-3 [4408 B]
-Fetched 61.9 MB in 7s (8842 kB/s)
+Fetched 61.9 MB in 7s (9507 kB/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 ... 19519 files and directories currently installed.)
@@ -312,7 +344,11 @@
 Building tag database...
  -> Finished parsing the build-deps
 I: Building the package
-I: Running cd /build/reproducible-path/golang-github-victoriametrics-metrics-1.35.1+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  > ../golang-github-victoriametrics-metrics_1.35.1+ds1-1_source.changes
+I: user script /srv/workspace/pbuilder/24047/tmp/hooks/A99_set_merged_usr starting
+Not re-configuring usrmerge for unstable
+I: user script /srv/workspace/pbuilder/24047/tmp/hooks/A99_set_merged_usr finished
+hostname: Name or service not known
+I: Running cd /build/reproducible-path/golang-github-victoriametrics-metrics-1.35.1+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  > ../golang-github-victoriametrics-metrics_1.35.1+ds1-1_source.changes
 dpkg-buildpackage: info: source package golang-github-victoriametrics-metrics
 dpkg-buildpackage: info: source version 1.35.1+ds1-1
 dpkg-buildpackage: info: source distribution unstable
@@ -330,120 +366,132 @@
    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/VictoriaMetrics/metrics
-internal/goarch
+	cd _build && go install -trimpath -v -p 4 github.com/VictoriaMetrics/metrics
+internal/byteorder
 internal/unsafeheader
+internal/goarch
 internal/cpu
-internal/byteorder
+internal/coverage/rtcov
 internal/abi
 internal/chacha8rand
-internal/bytealg
-internal/coverage/rtcov
 internal/godebugs
+internal/bytealg
 internal/goexperiment
 internal/goos
 internal/profilerecord
 internal/runtime/atomic
-internal/runtime/syscall
 internal/stringslite
+internal/runtime/syscall
 runtime/internal/math
 runtime/internal/sys
-internal/runtime/exithook
 internal/race
 sync/atomic
 unicode
+internal/runtime/exithook
 unicode/utf8
 cmp
 internal/itoa
-runtime
 math/bits
-math
 internal/asan
 internal/msan
 log/internal
 container/list
+math
 crypto/internal/alias
 crypto/internal/boring/sig
 unicode/utf16
 vendor/golang.org/x/crypto/cryptobyte/asn1
+runtime
 vendor/golang.org/x/crypto/internal/alias
 internal/nettrace
 internal/reflectlite
 iter
+crypto/subtle
 sync
 slices
-crypto/subtle
 internal/weak
 maps
+runtime/metrics
 internal/bisect
-internal/testlog
 internal/singleflight
+internal/testlog
 runtime/cgo
-errors
 internal/godebug
+errors
+sort
 io
+math/rand
 strconv
 bytes
 strings
 reflect
-bufio
 internal/oserror
+bufio
 path
 syscall
-sort
 hash
 hash/crc32
 crypto
 crypto/cipher
-time
-internal/syscall/unix
-internal/syscall/execenv
 crypto/internal/boring
 crypto/internal/randutil
-math/rand
-internal/fmtsort
-encoding/binary
 crypto/aes
 crypto/des
 crypto/internal/edwards25519/field
+internal/fmtsort
+encoding/binary
 crypto/internal/nistec/fiat
-io/fs
-internal/poll
-internal/filepathlite
-context
-os
-github.com/valyala/fastrand
-github.com/valyala/histogram
+time
+internal/syscall/unix
+internal/syscall/execenv
 crypto/sha512
 crypto/internal/edwards25519
 crypto/hmac
-fmt
-io/ioutil
 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
-crypto/internal/nistec
-vendor/golang.org/x/sys/cpu
-vendor/golang.org/x/crypto/sha3
-compress/flate
-log
-crypto/ecdh
-math/big
+vendor/golang.org/x/crypto/chacha20poly1305
 crypto/md5
-compress/gzip
 crypto/rc4
+io/fs
+internal/poll
+context
+internal/filepathlite
+github.com/valyala/fastrand
+github.com/valyala/histogram
 crypto/sha1
 crypto/sha256
-encoding/hex
 encoding/base64
 vendor/golang.org/x/net/dns/dnsmessage
+os
 encoding/pem
 math/rand/v2
+crypto/internal/nistec
 internal/concurrent
 unique
-net/url
 net/netip
+vendor/golang.org/x/text/transform
+net/http/internal/ascii
+regexp/syntax
+fmt
+io/ioutil
+crypto/ecdh
+vendor/golang.org/x/sys/cpu
+net
+vendor/golang.org/x/crypto/sha3
+path/filepath
+regexp
+compress/flate
+log
+math/big
+compress/gzip
+encoding/hex
+net/url
+vendor/golang.org/x/text/unicode/bidi
+vendor/golang.org/x/text/unicode/norm
+vendor/golang.org/x/text/secure/bidirule
+vendor/golang.org/x/net/http2/hpack
+mime
 crypto/rand
 crypto/elliptic
 crypto/internal/bigmod
@@ -454,24 +502,12 @@
 crypto/internal/mlkem768
 crypto/rsa
 crypto/dsa
-net
-path/filepath
-vendor/golang.org/x/crypto/cryptobyte
-crypto/x509/pkix
-vendor/golang.org/x/text/transform
-crypto/ecdsa
-vendor/golang.org/x/text/unicode/bidi
-vendor/golang.org/x/text/unicode/norm
-vendor/golang.org/x/text/secure/bidirule
-vendor/golang.org/x/net/http2/hpack
-mime
 vendor/golang.org/x/net/idna
 mime/quotedprintable
 net/http/internal
-net/http/internal/ascii
-regexp/syntax
-runtime/metrics
-regexp
+vendor/golang.org/x/crypto/cryptobyte
+crypto/x509/pkix
+crypto/ecdsa
 net/textproto
 vendor/golang.org/x/net/http/httpproxy
 crypto/x509
@@ -482,7 +518,7 @@
 net/http
 github.com/VictoriaMetrics/metrics
    dh_auto_test -O--builddirectory=_build -O--buildsystem=golang
-	cd _build && go test -vet=off -v -p 3 github.com/VictoriaMetrics/metrics
+	cd _build && go test -vet=off -v -p 4 github.com/VictoriaMetrics/metrics
 === RUN   TestCounterSerial
 --- PASS: TestCounterSerial (0.00s)
 === RUN   TestCounterConcurrent
@@ -568,21 +604,21 @@
 === RUN   TestGetOrCreateNotHistogram
 --- PASS: TestGetOrCreateNotHistogram (0.00s)
 === RUN   TestWritePrometheusSerial
---- PASS: TestWritePrometheusSerial (0.00s)
+--- PASS: TestWritePrometheusSerial (0.01s)
 === RUN   TestWritePrometheusConcurrent
---- PASS: TestWritePrometheusConcurrent (0.01s)
+--- PASS: TestWritePrometheusConcurrent (0.02s)
 === RUN   TestGetMaxFilesLimit
---- PASS: TestGetMaxFilesLimit (0.00s)
+--- PASS: TestGetMaxFilesLimit (0.02s)
 === RUN   TestGetOpenFDsCount
 --- PASS: TestGetOpenFDsCount (0.00s)
 === RUN   TestGetMemStats
---- PASS: TestGetMemStats (0.00s)
+--- PASS: TestGetMemStats (0.01s)
 === RUN   TestAddExtraLabels
 --- PASS: TestAddExtraLabels (0.00s)
 === RUN   TestInitPushFailure
 --- PASS: TestInitPushFailure (0.00s)
 === RUN   TestInitPushWithOptions
---- PASS: TestInitPushWithOptions (0.05s)
+--- PASS: TestInitPushWithOptions (0.06s)
 === RUN   TestPushMetrics
 --- PASS: TestPushMetrics (0.02s)
 === RUN   TestNewSet
@@ -594,7 +630,7 @@
 === RUN   TestSetUnregisterMetric
 --- PASS: TestSetUnregisterMetric (0.00s)
 === RUN   TestRegisterUnregister
---- PASS: TestRegisterUnregister (3.61s)
+--- PASS: TestRegisterUnregister (3.50s)
 === RUN   TestSummarySerial
 --- PASS: TestSummarySerial (0.01s)
 === RUN   TestSummaryConcurrent
@@ -632,7 +668,7 @@
 === RUN   ExampleExposeMetadata
 --- PASS: ExampleExposeMetadata (0.00s)
 PASS
-ok  	github.com/VictoriaMetrics/metrics	3.894s
+ok  	github.com/VictoriaMetrics/metrics	3.852s
    create-stamp debian/debhelper-build-stamp
    dh_testroot -O--builddirectory=_build -O--buildsystem=golang
    dh_prep -O--builddirectory=_build -O--buildsystem=golang
@@ -659,12 +695,14 @@
 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/24047/tmp/hooks/B01_cleanup starting
+I: user script /srv/workspace/pbuilder/24047/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/9485 and its subdirectories
-I: Current time: Fri Oct 11 14:22:22 -12 2024
-I: pbuilder-time-stamp: 1728699742
+I: removing directory /srv/workspace/pbuilder/24047 and its subdirectories
+I: Current time: Sat Oct 12 16:32:44 +14 2024
+I: pbuilder-time-stamp: 1728700364