Diff of the two buildlogs:

--
--- b1/build.log	2025-03-25 23:59:33.221992563 +0000
+++ b2/build.log	2025-03-26 00:00:11.228278957 +0000
@@ -1,6 +1,6 @@
 I: pbuilder: network access will be disabled during build
-I: Current time: Tue Mar 25 11:57:55 -12 2025
-I: pbuilder-time-stamp: 1742947075
+I: Current time: Tue Apr 28 20:22:34 +14 2026
+I: pbuilder-time-stamp: 1777357354
 I: Building the build Environment
 I: extracting base tarball [/var/cache/pbuilder/trixie-reproducible-base.tgz]
 I: copying local configuration
@@ -25,54 +25,86 @@
 dpkg-source: info: applying debian/0001-queryparse-shebang.patch
 I: Not using root during the build.
 I: Installing the build-deps
-I: user script /srv/workspace/pbuilder/48977/tmp/hooks/D02_print_environment starting
+I: user script /srv/workspace/pbuilder/8814/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 Apr 28 06:22 /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/8814/tmp/hooks/D01_modify_environment finished
+I: user script /srv/workspace/pbuilder/8814/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]="37" [3]="1" [4]="release" [5]="i686-pc-linux-gnu")
+  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=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='205b5b42f1ee406ba09d060e311d4671'
-  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='48977'
-  PS1='# '
-  PS2='> '
+  INVOCATION_ID=85c914546f384450b9a206e6c4c59816
+  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=8814
   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.w5Xa5lIH/pbuilderrc_8W5A --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.w5Xa5lIH/b1 --logfile b1/build.log dnsperf_2.14.0-4.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://46.16.76.132:3128'
+  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.w5Xa5lIH/pbuilderrc_Xvv3 --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.w5Xa5lIH/b2 --logfile b2/build.log dnsperf_2.14.0-4.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://213.165.73.152:3128
 I: uname -a
-  Linux ionos12-i386 6.1.0-32-amd64 #1 SMP PREEMPT_DYNAMIC Debian 6.1.129-1 (2025-03-06) x86_64 GNU/Linux
+  Linux i-capture-the-hostname 6.1.0-32-amd64 #1 SMP PREEMPT_DYNAMIC Debian 6.1.129-1 (2025-03-06) x86_64 GNU/Linux
 I: ls -l /bin
-  lrwxrwxrwx 1 root root 7 Mar  4 11:20 /bin -> usr/bin
-I: user script /srv/workspace/pbuilder/48977/tmp/hooks/D02_print_environment finished
+  lrwxrwxrwx 1 root root 7 Mar  4  2025 /bin -> usr/bin
+I: user script /srv/workspace/pbuilder/8814/tmp/hooks/D02_print_environment finished
  -> Attempting to satisfy build-dependencies
  -> Creating pbuilder-satisfydepends-dummy package
 Package: pbuilder-satisfydepends-dummy
@@ -158,7 +190,7 @@
 Get: 38 http://deb.debian.org/debian trixie/main i386 pkgconf-bin i386 1.8.1-4 [30.6 kB]
 Get: 39 http://deb.debian.org/debian trixie/main i386 pkgconf i386 1.8.1-4 [26.2 kB]
 Get: 40 http://deb.debian.org/debian trixie/main i386 libnghttp2-dev i386 1.64.0-1 [123 kB]
-Fetched 25.9 MB in 1s (49.5 MB/s)
+Fetched 25.9 MB in 0s (59.5 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 ... 19794 files and directories currently installed.)
@@ -333,7 +365,11 @@
 Building tag database...
  -> Finished parsing the build-deps
 I: Building the package
-I: Running cd /build/reproducible-path/dnsperf-2.14.0/ && 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  > ../dnsperf_2.14.0-4_source.changes
+I: user script /srv/workspace/pbuilder/8814/tmp/hooks/A99_set_merged_usr starting
+Not re-configuring usrmerge for trixie
+I: user script /srv/workspace/pbuilder/8814/tmp/hooks/A99_set_merged_usr finished
+hostname: Name or service not known
+I: Running cd /build/reproducible-path/dnsperf-2.14.0/ && 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  > ../dnsperf_2.14.0-4_source.changes
 dpkg-buildpackage: info: source package dnsperf
 dpkg-buildpackage: info: source version 2.14.0-4
 dpkg-buildpackage: info: source distribution sid
@@ -494,7 +530,7 @@
 config.status: executing depfiles commands
 config.status: executing libtool commands
    dh_auto_build
-	make -j11
+	make -j21
 make[1]: Entering directory '/build/reproducible-path/dnsperf-2.14.0'
 Making all in src
 make[2]: Entering directory '/build/reproducible-path/dnsperf-2.14.0/src'
@@ -531,9 +567,9 @@
 < ./resperf.1.in > resperf.1
 gcc -DHAVE_CONFIG_H -I.   -Wdate-time -D_FORTIFY_SOURCE=2 -I. -I.. -pthread    -g -O2 -Werror=implicit-function-declaration -ffile-prefix-map=/build/reproducible-path/dnsperf-2.14.0=. -fstack-protector-strong -Wformat -Werror=format-security -D__x86__   -c -o ext/parse_uri.o ext/parse_uri.c
 gcc -DHAVE_CONFIG_H -I.   -Wdate-time -D_FORTIFY_SOURCE=2 -I. -I.. -pthread    -g -O2 -Werror=implicit-function-declaration -ffile-prefix-map=/build/reproducible-path/dnsperf-2.14.0=. -fstack-protector-strong -Wformat -Werror=format-security -D__x86__   -c -o ext/hg64.o ext/hg64.c
-/bin/bash ../libtool  --tag=CC   --mode=link gcc -I. -I.. -pthread    -g -O2 -Werror=implicit-function-declaration -ffile-prefix-map=/build/reproducible-path/dnsperf-2.14.0=. -fstack-protector-strong -Wformat -Werror=format-security -D__x86__    -Wl,-z,relro -o resperf datafile.o dns.o log.o net.o opt.o os.o strerror.o qtype.o edns.o tsig.o net_udp.o net_tcp.o net_dot.o net_doh.o ext/parse_uri.o ext/hg64.o resperf.o   -lssl  -lcrypto  -lldns  -lnghttp2  -lm  -lck  
+/bin/sh ../libtool  --tag=CC   --mode=link gcc -I. -I.. -pthread    -g -O2 -Werror=implicit-function-declaration -ffile-prefix-map=/build/reproducible-path/dnsperf-2.14.0=. -fstack-protector-strong -Wformat -Werror=format-security -D__x86__    -Wl,-z,relro -o resperf datafile.o dns.o log.o net.o opt.o os.o strerror.o qtype.o edns.o tsig.o net_udp.o net_tcp.o net_dot.o net_doh.o ext/parse_uri.o ext/hg64.o resperf.o   -lssl  -lcrypto  -lldns  -lnghttp2  -lm  -lck  
 libtool: link: gcc -I. -I.. -g -O2 -Werror=implicit-function-declaration -ffile-prefix-map=/build/reproducible-path/dnsperf-2.14.0=. -fstack-protector-strong -Wformat -Werror=format-security -D__x86__ -Wl,-z -Wl,relro -o resperf datafile.o dns.o log.o net.o opt.o os.o strerror.o qtype.o edns.o tsig.o net_udp.o net_tcp.o net_dot.o net_doh.o ext/parse_uri.o ext/hg64.o resperf.o  -lssl -lcrypto -lldns -lnghttp2 -lm -lck -pthread
-/bin/bash ../libtool  --tag=CC   --mode=link gcc -I. -I.. -pthread    -g -O2 -Werror=implicit-function-declaration -ffile-prefix-map=/build/reproducible-path/dnsperf-2.14.0=. -fstack-protector-strong -Wformat -Werror=format-security -D__x86__    -Wl,-z,relro -o dnsperf datafile.o dns.o log.o net.o opt.o os.o strerror.o qtype.o edns.o tsig.o net_udp.o net_tcp.o net_dot.o net_doh.o ext/parse_uri.o ext/hg64.o dnsperf.o   -lssl  -lcrypto  -lldns  -lnghttp2  -lm  -lck  
+/bin/sh ../libtool  --tag=CC   --mode=link gcc -I. -I.. -pthread    -g -O2 -Werror=implicit-function-declaration -ffile-prefix-map=/build/reproducible-path/dnsperf-2.14.0=. -fstack-protector-strong -Wformat -Werror=format-security -D__x86__    -Wl,-z,relro -o dnsperf datafile.o dns.o log.o net.o opt.o os.o strerror.o qtype.o edns.o tsig.o net_udp.o net_tcp.o net_dot.o net_doh.o ext/parse_uri.o ext/hg64.o dnsperf.o   -lssl  -lcrypto  -lldns  -lnghttp2  -lm  -lck  
 libtool: link: gcc -I. -I.. -g -O2 -Werror=implicit-function-declaration -ffile-prefix-map=/build/reproducible-path/dnsperf-2.14.0=. -fstack-protector-strong -Wformat -Werror=format-security -D__x86__ -Wl,-z -Wl,relro -o dnsperf datafile.o dns.o log.o net.o opt.o os.o strerror.o qtype.o edns.o tsig.o net_udp.o net_tcp.o net_dot.o net_doh.o ext/parse_uri.o ext/hg64.o dnsperf.o  -lssl -lcrypto -lldns -lnghttp2 -lm -lck -pthread
 make[4]: Leaving directory '/build/reproducible-path/dnsperf-2.14.0/src'
 make[3]: Leaving directory '/build/reproducible-path/dnsperf-2.14.0/src'
@@ -543,7 +579,7 @@
 make[2]: Leaving directory '/build/reproducible-path/dnsperf-2.14.0'
 make[1]: Leaving directory '/build/reproducible-path/dnsperf-2.14.0'
    dh_auto_test
-	make -j11 test "TESTSUITEFLAGS=-j11 --verbose" VERBOSE=1
+	make -j21 test "TESTSUITEFLAGS=-j21 --verbose" VERBOSE=1
 make[1]: Entering directory '/build/reproducible-path/dnsperf-2.14.0'
 Making check in src
 make[2]: Entering directory '/build/reproducible-path/dnsperf-2.14.0/src'
@@ -553,9 +589,9 @@
 make[4]: Entering directory '/build/reproducible-path/dnsperf-2.14.0/src/test'
 make[5]: Entering directory '/build/reproducible-path/dnsperf-2.14.0/src/test'
 PASS: test2.sh
-PASS: test4.sh
 PASS: test5.sh
 PASS: test6.sh
+PASS: test4.sh
 PASS: test1.sh
 PASS: test7.sh
 PASS: test3.sh
@@ -597,7 +633,7 @@
 make[3]: Entering directory '/build/reproducible-path/dnsperf-2.14.0/src'
 make[4]: Entering directory '/build/reproducible-path/dnsperf-2.14.0/src'
  /usr/bin/mkdir -p '/build/reproducible-path/dnsperf-2.14.0/debian/dnsperf/usr/bin'
-  /bin/bash ../libtool   --mode=install /usr/bin/install -c dnsperf resperf '/build/reproducible-path/dnsperf-2.14.0/debian/dnsperf/usr/bin'
+  /bin/sh ../libtool   --mode=install /usr/bin/install -c dnsperf resperf '/build/reproducible-path/dnsperf-2.14.0/debian/dnsperf/usr/bin'
 libtool: install: /usr/bin/install -c dnsperf /build/reproducible-path/dnsperf-2.14.0/debian/dnsperf/usr/bin/dnsperf
 libtool: install: /usr/bin/install -c resperf /build/reproducible-path/dnsperf-2.14.0/debian/dnsperf/usr/bin/resperf
  /usr/bin/mkdir -p '/build/reproducible-path/dnsperf-2.14.0/debian/dnsperf/usr/bin'
@@ -643,8 +679,8 @@
    dh_gencontrol
    dh_md5sums
    dh_builddeb
-dpkg-deb: building package 'dnsperf' in '../dnsperf_2.14.0-4_i386.deb'.
 dpkg-deb: building package 'dnsperf-dbgsym' in '../dnsperf-dbgsym_2.14.0-4_i386.deb'.
+dpkg-deb: building package 'dnsperf' in '../dnsperf_2.14.0-4_i386.deb'.
  dpkg-genbuildinfo --build=binary -O../dnsperf_2.14.0-4_i386.buildinfo
  dpkg-genchanges --build=binary -O../dnsperf_2.14.0-4_i386.changes
 dpkg-genchanges: info: binary-only upload (no source code included)
@@ -652,12 +688,14 @@
 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/8814/tmp/hooks/B01_cleanup starting
+I: user script /srv/workspace/pbuilder/8814/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/48977 and its subdirectories
-I: Current time: Tue Mar 25 11:59:32 -12 2025
-I: pbuilder-time-stamp: 1742947172
+I: removing directory /srv/workspace/pbuilder/8814 and its subdirectories
+I: Current time: Tue Apr 28 20:23:10 +14 2026
+I: pbuilder-time-stamp: 1777357390