Diff of the two buildlogs:

--
--- b1/build.log	2025-01-31 23:50:50.569409508 +0000
+++ b2/build.log	2025-01-31 23:51:35.951350058 +0000
@@ -1,6 +1,6 @@
 I: pbuilder: network access will be disabled during build
-I: Current time: Thu Mar  5 18:13:24 -12 2026
-I: pbuilder-time-stamp: 1772777604
+I: Current time: Sat Feb  1 13:50:54 +14 2025
+I: pbuilder-time-stamp: 1738367454
 I: Building the build Environment
 I: extracting base tarball [/var/cache/pbuilder/unstable-reproducible-base.tgz]
 I: copying local configuration
@@ -23,54 +23,86 @@
 dpkg-source: info: unpacking tinycdb_0.81-2.debian.tar.xz
 I: using fakeroot in build.
 I: Installing the build-deps
-I: user script /srv/workspace/pbuilder/115769/tmp/hooks/D02_print_environment starting
+I: user script /srv/workspace/pbuilder/60310/tmp/hooks/D01_modify_environment starting
+debug: Running on ionos2-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 Jan 31 23:51 /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/60310/tmp/hooks/D01_modify_environment finished
+I: user script /srv/workspace/pbuilder/60310/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=22 '
-  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]="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=10 '
+  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='4619a2b0fc5b47ca97d616e7e45ae8f3'
-  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='115769'
-  PS1='# '
-  PS2='> '
+  INVOCATION_ID=d117e8251b314e55b652adf66ef5d72a
+  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=60310
   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.Anuvl4OR/pbuilderrc_185Y --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.Anuvl4OR/b1 --logfile b1/build.log tinycdb_0.81-2.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://213.165.73.152:3128'
+  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.Anuvl4OR/pbuilderrc_Ezrt --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.Anuvl4OR/b2 --logfile b2/build.log tinycdb_0.81-2.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://46.16.76.132:3128
 I: uname -a
-  Linux ionos6-i386 6.1.0-30-amd64 #1 SMP PREEMPT_DYNAMIC Debian 6.1.124-1 (2025-01-12) x86_64 GNU/Linux
+  Linux i-capture-the-hostname 6.1.0-30-amd64 #1 SMP PREEMPT_DYNAMIC Debian 6.1.124-1 (2025-01-12) x86_64 GNU/Linux
 I: ls -l /bin
-  lrwxrwxrwx 1 root root 7 Nov 22  2024 /bin -> usr/bin
-I: user script /srv/workspace/pbuilder/115769/tmp/hooks/D02_print_environment finished
+  lrwxrwxrwx 1 root root 7 Nov 22 14:40 /bin -> usr/bin
+I: user script /srv/workspace/pbuilder/60310/tmp/hooks/D02_print_environment finished
  -> Attempting to satisfy build-dependencies
  -> Creating pbuilder-satisfydepends-dummy package
 Package: pbuilder-satisfydepends-dummy
@@ -136,7 +168,7 @@
 Get: 28 http://deb.debian.org/debian unstable/main i386 intltool-debian all 0.35.0+20060710.6 [22.9 kB]
 Get: 29 http://deb.debian.org/debian unstable/main i386 po-debconf all 1.0.21+nmu1 [248 kB]
 Get: 30 http://deb.debian.org/debian unstable/main i386 debhelper all 13.24.1 [920 kB]
-Fetched 20.8 MB in 0s (122 MB/s)
+Fetched 20.8 MB in 1s (30.8 MB/s)
 Preconfiguring packages ...
 Selecting previously unselected package sensible-utils.
 (Reading database ... 
(Reading database ... 5%
(Reading database ... 10%
(Reading database ... 15%
(Reading database ... 20%
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(Reading database ... 55%
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(Reading database ... 90%
(Reading database ... 95%
(Reading database ... 100%
(Reading database ... 19826 files and directories currently installed.)
@@ -276,7 +308,11 @@
 fakeroot is already the newest version (1.37-1).
 0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
 I: Building the package
-I: Running cd /build/reproducible-path/tinycdb-0.81/ && 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  > ../tinycdb_0.81-2_source.changes
+I: user script /srv/workspace/pbuilder/60310/tmp/hooks/A99_set_merged_usr starting
+Not re-configuring usrmerge for unstable
+I: user script /srv/workspace/pbuilder/60310/tmp/hooks/A99_set_merged_usr finished
+hostname: Name or service not known
+I: Running cd /build/reproducible-path/tinycdb-0.81/ && 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  > ../tinycdb_0.81-2_source.changes
 dpkg-buildpackage: info: source package tinycdb
 dpkg-buildpackage: info: source version 0.81-2
 dpkg-buildpackage: info: source distribution unstable
@@ -300,7 +336,7 @@
 dh_auto_build -- prefix=/usr \
     CC="i686-linux-gnu-gcc" CFLAGS="-g -O2 -Werror=implicit-function-declaration -ffile-prefix-map=/build/reproducible-path/tinycdb-0.81=. -fstack-protector-strong -Wformat -Werror=format-security" CDEFS="-D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64 -Wdate-time -D_FORTIFY_SOURCE=2" LDFLAGS="-Wl,-z,relro -Wl,-z,now" \
     staticlib cdb sharedlib cdb-shared libcdb.pc # nss
-	make -j22 "INSTALL=install --strip-program=true" prefix=/usr CC=i686-linux-gnu-gcc "CFLAGS=-g -O2 -Werror=implicit-function-declaration -ffile-prefix-map=/build/reproducible-path/tinycdb-0.81=. -fstack-protector-strong -Wformat -Werror=format-security" "CDEFS=-D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64 -Wdate-time -D_FORTIFY_SOURCE=2" "LDFLAGS=-Wl,-z,relro -Wl,-z,now" staticlib cdb sharedlib cdb-shared libcdb.pc
+	make -j10 "INSTALL=install --strip-program=true" prefix=/usr CC=i686-linux-gnu-gcc "CFLAGS=-g -O2 -Werror=implicit-function-declaration -ffile-prefix-map=/build/reproducible-path/tinycdb-0.81=. -fstack-protector-strong -Wformat -Werror=format-security" "CDEFS=-D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64 -Wdate-time -D_FORTIFY_SOURCE=2" "LDFLAGS=-Wl,-z,relro -Wl,-z,now" staticlib cdb sharedlib cdb-shared libcdb.pc
 make[2]: Entering directory '/build/reproducible-path/tinycdb-0.81'
 i686-linux-gnu-gcc -g -O2 -Werror=implicit-function-declaration -ffile-prefix-map=/build/reproducible-path/tinycdb-0.81=. -fstack-protector-strong -Wformat -Werror=format-security -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64 -Wdate-time -D_FORTIFY_SOURCE=2 -c cdb_init.c
 i686-linux-gnu-gcc -g -O2 -Werror=implicit-function-declaration -ffile-prefix-map=/build/reproducible-path/tinycdb-0.81=. -fstack-protector-strong -Wformat -Werror=format-security -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64 -Wdate-time -D_FORTIFY_SOURCE=2 -c cdb_find.c
@@ -334,12 +370,7 @@
   echo 'Cflags: -I${includedir}'; \
 } >libcdb.pc
 rm -f libcdb.a
-rm -f libcdb.so
 ar rv libcdb.a cdb_init.o cdb_find.o cdb_findnext.o cdb_seq.o cdb_seek.o cdb_pack.o cdb_unpack.o cdb_make_add.o cdb_make_put.o cdb_make.o cdb_hash.o
-ln -s libcdb.so.1 libcdb.so
-i686-linux-gnu-gcc -Wl,-z,relro -Wl,-z,now -shared -o libcdb.so.1 \
- -Wl,--soname=libcdb.so.1 -Wl,--version-script=libcdb.map \
- cdb_init.lo cdb_find.lo cdb_findnext.lo cdb_seq.lo cdb_seek.lo cdb_pack.lo cdb_unpack.lo cdb_make_add.lo cdb_make_put.lo cdb_make.lo cdb_hash.lo
 ar: creating libcdb.a
 a - cdb_init.o
 a - cdb_find.o
@@ -353,12 +384,17 @@
 a - cdb_make.o
 a - cdb_hash.o
 ranlib libcdb.a
+rm -f libcdb.so
+ln -s libcdb.so.1 libcdb.so
+i686-linux-gnu-gcc -Wl,-z,relro -Wl,-z,now -shared -o libcdb.so.1 \
+ -Wl,--soname=libcdb.so.1 -Wl,--version-script=libcdb.map \
+ cdb_init.lo cdb_find.lo cdb_findnext.lo cdb_seq.lo cdb_seek.lo cdb_pack.lo cdb_unpack.lo cdb_make_add.lo cdb_make_put.lo cdb_make.lo cdb_hash.lo
 i686-linux-gnu-gcc -Wl,-z,relro -Wl,-z,now -o cdb cdb.o libcdb.a
 i686-linux-gnu-gcc -Wl,-z,relro -Wl,-z,now -o cdb-shared cdb.o libcdb.so.1
 make[2]: Leaving directory '/build/reproducible-path/tinycdb-0.81'
 make[1]: Leaving directory '/build/reproducible-path/tinycdb-0.81'
    dh_auto_test
-	make -j22 test
+	make -j10 test
 make[1]: Entering directory '/build/reproducible-path/tinycdb-0.81'
 sh ./tests.sh ./cdb > tests.out 2>&1
 diff tests.ok tests.out
@@ -394,9 +430,9 @@
    dh_builddeb
 dpkg-deb: building package 'tinycdb' in '../tinycdb_0.81-2_i386.deb'.
 dpkg-deb: building package 'tinycdb-dbgsym' in '../tinycdb-dbgsym_0.81-2_i386.deb'.
+dpkg-deb: building package 'libcdb1' in '../libcdb1_0.81-2_i386.deb'.
 dpkg-deb: building package 'libcdb1-dbgsym' in '../libcdb1-dbgsym_0.81-2_i386.deb'.
 dpkg-deb: building package 'libcdb-dev' in '../libcdb-dev_0.81-2_i386.deb'.
-dpkg-deb: building package 'libcdb1' in '../libcdb1_0.81-2_i386.deb'.
  dpkg-genbuildinfo --build=binary -O../tinycdb_0.81-2_i386.buildinfo
  dpkg-genchanges --build=binary -O../tinycdb_0.81-2_i386.changes
 dpkg-genchanges: info: binary-only upload (no source code included)
@@ -404,12 +440,14 @@
 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/60310/tmp/hooks/B01_cleanup starting
+I: user script /srv/workspace/pbuilder/60310/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/115769 and its subdirectories
-I: Current time: Thu Mar  5 18:13:49 -12 2026
-I: pbuilder-time-stamp: 1772777629
+I: removing directory /srv/workspace/pbuilder/60310 and its subdirectories
+I: Current time: Sat Feb  1 13:51:35 +14 2025
+I: pbuilder-time-stamp: 1738367495