Diff of the two buildlogs:

--
--- b1/build.log	2024-10-25 17:09:13.024368432 +0000
+++ b2/build.log	2024-10-25 17:10:54.844743640 +0000
@@ -1,6 +1,6 @@
 I: pbuilder: network access will be disabled during build
-I: Current time: Thu Nov 27 11:31:15 -12 2025
-I: pbuilder-time-stamp: 1764286275
+I: Current time: Sat Oct 26 07:09:15 +14 2024
+I: pbuilder-time-stamp: 1729876155
 I: Building the build Environment
 I: extracting base tarball [/var/cache/pbuilder/unstable-reproducible-base.tgz]
 I: copying local configuration
@@ -29,53 +29,85 @@
 dpkg-source: info: applying deactivate-test-with-files.patch
 I: Not using root during the build.
 I: Installing the build-deps
-I: user script /srv/workspace/pbuilder/29432/tmp/hooks/D02_print_environment starting
+I: user script /srv/workspace/pbuilder/11243/tmp/hooks/D01_modify_environment starting
+debug: Running on infom07-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 Oct 25 17:09 /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/11243/tmp/hooks/D01_modify_environment finished
+I: user script /srv/workspace/pbuilder/11243/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=6 '
-  DISTRIBUTION='unstable'
-  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]="32" [3]="1" [4]="release" [5]="i686-pc-linux-gnu")
+  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=i386
+  DEBIAN_FRONTEND=noninteractive
+  DEB_BUILD_OPTIONS='buildinfo=+all reproducible=+all parallel=5 '
+  DIRSTACK=()
+  DISTRIBUTION=unstable
+  EUID=0
+  FUNCNAME=([0]="Echo" [1]="main")
+  GROUPS=()
+  HOME=/root
+  HOSTNAME=i-capture-the-hostname
+  HOSTTYPE=i686
+  HOST_ARCH=i386
   IFS=' 	
   '
-  INVOCATION_ID='768669d8927c4fbc843eb056e3b7d975'
-  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='29432'
-  PS1='# '
-  PS2='> '
+  INVOCATION_ID=6c13d7f119e644af8af83fbb244053c8
+  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=11243
   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.ECrBIpKC/pbuilderrc_GF2E --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.ECrBIpKC/b1 --logfile b1/build.log golang-github-hdrhistogram-hdrhistogram-go_1.1.2-3.dsc'
-  SUDO_GID='111'
-  SUDO_UID='104'
-  SUDO_USER='jenkins'
-  TERM='unknown'
-  TZ='/usr/share/zoneinfo/Etc/GMT+12'
-  USER='root'
-  _='/usr/bin/systemd-run'
+  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.ECrBIpKC/pbuilderrc_9Njh --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.ECrBIpKC/b2 --logfile b2/build.log golang-github-hdrhistogram-hdrhistogram-go_1.1.2-3.dsc'
+  SUDO_GID=111
+  SUDO_UID=104
+  SUDO_USER=jenkins
+  TERM=unknown
+  TZ=/usr/share/zoneinfo/Etc/GMT-14
+  UID=0
+  USER=root
+  _='I: set'
 I: uname -a
-  Linux infom08-i386 6.10.11+bpo-amd64 #1 SMP PREEMPT_DYNAMIC Debian 6.10.11-1~bpo12+1 (2024-10-03) x86_64 GNU/Linux
+  Linux i-capture-the-hostname 6.1.0-26-amd64 #1 SMP PREEMPT_DYNAMIC Debian 6.1.112-1 (2024-09-30) x86_64 GNU/Linux
 I: ls -l /bin
-  lrwxrwxrwx 1 root root 7 Aug  4  2024 /bin -> usr/bin
-I: user script /srv/workspace/pbuilder/29432/tmp/hooks/D02_print_environment finished
+  lrwxrwxrwx 1 root root 7 Aug  4 21:30 /bin -> usr/bin
+I: user script /srv/workspace/pbuilder/11243/tmp/hooks/D02_print_environment finished
  -> Attempting to satisfy build-dependencies
  -> Creating pbuilder-satisfydepends-dummy package
 Package: pbuilder-satisfydepends-dummy
@@ -180,7 +212,7 @@
 Get: 57 http://deb.debian.org/debian unstable/main i386 golang-golang-x-tools-dev all 1:0.23.0+ds-1 [1593 kB]
 Get: 58 http://deb.debian.org/debian unstable/main i386 golang-gonum-v1-plot-dev all 0.7.0-5 [4804 kB]
 Get: 59 http://deb.debian.org/debian unstable/main i386 golang-gonum-v1-gonum-dev all 0.15.1-1 [1989 kB]
-Fetched 84.5 MB in 3s (25.9 MB/s)
+Fetched 84.5 MB in 2s (37.0 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 ... 19933 files and directories currently installed.)
@@ -431,7 +463,11 @@
 Building tag database...
  -> Finished parsing the build-deps
 I: Building the package
-I: Running cd /build/reproducible-path/golang-github-hdrhistogram-hdrhistogram-go-1.1.2/ && 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-hdrhistogram-hdrhistogram-go_1.1.2-3_source.changes
+I: user script /srv/workspace/pbuilder/11243/tmp/hooks/A99_set_merged_usr starting
+Not re-configuring usrmerge for unstable
+I: user script /srv/workspace/pbuilder/11243/tmp/hooks/A99_set_merged_usr finished
+hostname: Name or service not known
+I: Running cd /build/reproducible-path/golang-github-hdrhistogram-hdrhistogram-go-1.1.2/ && 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-hdrhistogram-hdrhistogram-go_1.1.2-3_source.changes
 dpkg-buildpackage: info: source package golang-github-hdrhistogram-hdrhistogram-go
 dpkg-buildpackage: info: source version 1.1.2-3
 dpkg-buildpackage: info: source distribution unstable
@@ -449,75 +485,75 @@
    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 6 github.com/HdrHistogram/hdrhistogram-go
-internal/coverage/rtcov
-internal/unsafeheader
-internal/goarch
+	cd _build && go install -trimpath -v -p 5 github.com/HdrHistogram/hdrhistogram-go
 internal/byteorder
+internal/goarch
+internal/unsafeheader
+internal/coverage/rtcov
 internal/godebugs
-internal/cpu
 internal/goexperiment
+internal/cpu
 internal/goos
+internal/chacha8rand
 internal/abi
 internal/profilerecord
 internal/runtime/atomic
-internal/chacha8rand
 internal/runtime/syscall
 runtime/internal/math
+internal/bytealg
+internal/runtime/exithook
 runtime/internal/sys
 internal/race
 sync/atomic
-unicode/utf8
 unicode
-internal/bytealg
+unicode/utf8
+internal/stringslite
 cmp
-internal/runtime/exithook
 internal/itoa
 math/bits
 internal/asan
 internal/msan
-math
-internal/stringslite
 runtime
+math
 internal/reflectlite
-iter
 sync
+iter
 slices
-internal/bisect
 internal/testlog
-errors
+internal/bisect
 sort
+errors
 internal/godebug
-internal/oserror
-path
 io
 strconv
+internal/oserror
+path
 syscall
+bytes
 strings
 hash
-bytes
 hash/adler32
+reflect
 bufio
 regexp/syntax
-reflect
-internal/syscall/unix
 internal/syscall/execenv
+internal/syscall/unix
 time
 regexp
 io/fs
 internal/poll
-internal/filepathlite
-os
 internal/fmtsort
 encoding/binary
+internal/filepathlite
+os
 encoding/base64
-io/ioutil
 fmt
+io/ioutil
 compress/flate
 compress/zlib
 github.com/HdrHistogram/hdrhistogram-go
    dh_auto_test -O--builddirectory=_build -O--buildsystem=golang
-	cd _build && go test -vet=off -v -p 6 github.com/HdrHistogram/hdrhistogram-go
+	cd _build && go test -vet=off -v -p 5 github.com/HdrHistogram/hdrhistogram-go
 === RUN   TestHistogram_encodeIntoByteBuffer
 --- PASS: TestHistogram_encodeIntoByteBuffer (0.00s)
 === RUN   TestHistogram_DumpLoadWhiteBox
@@ -591,23 +627,23 @@
 === RUN   TestHighSigFig
 --- PASS: TestHighSigFig (0.00s)
 === RUN   TestValueAtQuantile
---- PASS: TestValueAtQuantile (0.01s)
+--- PASS: TestValueAtQuantile (0.02s)
 === RUN   TestMean
---- PASS: TestMean (0.01s)
+--- PASS: TestMean (0.02s)
 === RUN   TestStdDev
---- PASS: TestStdDev (0.52s)
+--- PASS: TestStdDev (0.59s)
 === RUN   TestTotalCount
 --- PASS: TestTotalCount (0.02s)
 === RUN   TestMax
 --- PASS: TestMax (0.02s)
 === RUN   TestReset
---- PASS: TestReset (0.01s)
+--- PASS: TestReset (0.02s)
 === RUN   TestMerge
 --- PASS: TestMerge (0.00s)
 === RUN   TestMin
 --- PASS: TestMin (0.01s)
 === RUN   TestHistogram_ValueAtPercentiles
---- PASS: TestHistogram_ValueAtPercentiles (0.01s)
+--- PASS: TestHistogram_ValueAtPercentiles (0.02s)
 === RUN   TestByteSize
 --- PASS: TestByteSize (0.00s)
 === RUN   TestRecordCorrectedValue
@@ -631,7 +667,7 @@
 === RUN   TestSubBucketMaskOverflow
 --- PASS: TestSubBucketMaskOverflow (0.00s)
 === RUN   TestExportImport
---- PASS: TestExportImport (0.01s)
+--- PASS: TestExportImport (0.03s)
 === RUN   TestEquals
 --- PASS: TestEquals (0.02s)
 === RUN   TestHistogram_ValuesAreEquivalent
@@ -649,7 +685,7 @@
 === RUN   ExampleNewHistogramLogWriter
 --- PASS: ExampleNewHistogramLogWriter (0.00s)
 PASS
-ok  	github.com/HdrHistogram/hdrhistogram-go	0.706s
+ok  	github.com/HdrHistogram/hdrhistogram-go	0.852s
    create-stamp debian/debhelper-build-stamp
    dh_testroot -O--builddirectory=_build -O--buildsystem=golang
    dh_prep -O--builddirectory=_build -O--buildsystem=golang
@@ -676,12 +712,14 @@
 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/11243/tmp/hooks/B01_cleanup starting
+I: user script /srv/workspace/pbuilder/11243/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/29432 and its subdirectories
-I: Current time: Thu Nov 27 11:32:08 -12 2025
-I: pbuilder-time-stamp: 1764286328
+I: removing directory /srv/workspace/pbuilder/11243 and its subdirectories
+I: Current time: Sat Oct 26 07:10:53 +14 2024
+I: pbuilder-time-stamp: 1729876253