Diff of the two buildlogs:

--
--- b1/build.log	2024-12-22 16:27:23.240697925 +0000
+++ b2/build.log	2024-12-22 16:31:19.026048023 +0000
@@ -1,6 +1,6 @@
 I: pbuilder: network access will be disabled during build
-I: Current time: Sat Jan 24 10:48:17 -12 2026
-I: pbuilder-time-stamp: 1769294897
+I: Current time: Mon Dec 23 06:27:25 +14 2024
+I: pbuilder-time-stamp: 1734884845
 I: Building the build Environment
 I: extracting base tarball [/var/cache/pbuilder/unstable-reproducible-base.tgz]
 I: copying local configuration
@@ -29,54 +29,86 @@
 dpkg-source: info: applying 0002-Remove-unwinding-feature.patch
 I: Not using root during the build.
 I: Installing the build-deps
-I: user script /srv/workspace/pbuilder/66061/tmp/hooks/D02_print_environment starting
+I: user script /srv/workspace/pbuilder/8256/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 Dec 22 16:27 /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/8256/tmp/hooks/D01_modify_environment finished
+I: user script /srv/workspace/pbuilder/8256/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='56be1125159446419e213fb1aa3d932b'
-  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='66061'
-  PS1='# '
-  PS2='> '
+  INVOCATION_ID=5e2376e414fd4f998c70931f92899cba
+  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=8256
   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.NQstErnK/pbuilderrc_Zx9t --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.NQstErnK/b1 --logfile b1/build.log python-orjson_3.10.7-2.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.NQstErnK/pbuilderrc_bbXL --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.NQstErnK/b2 --logfile b2/build.log python-orjson_3.10.7-2.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 ionos16-i386 6.1.0-28-amd64 #1 SMP PREEMPT_DYNAMIC Debian 6.1.119-1 (2024-11-22) x86_64 GNU/Linux
+  Linux i-capture-the-hostname 6.1.0-28-amd64 #1 SMP PREEMPT_DYNAMIC Debian 6.1.119-1 (2024-11-22) 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/66061/tmp/hooks/D02_print_environment finished
+  lrwxrwxrwx 1 root root 7 Nov 22 14:40 /bin -> usr/bin
+I: user script /srv/workspace/pbuilder/8256/tmp/hooks/D02_print_environment finished
  -> Attempting to satisfy build-dependencies
  -> Creating pbuilder-satisfydepends-dummy package
 Package: pbuilder-satisfydepends-dummy
@@ -461,7 +493,7 @@
 Get: 299 http://deb.debian.org/debian unstable/main i386 python3-maturin i386 1.7.4-2 [3569 kB]
 Get: 300 http://deb.debian.org/debian unstable/main i386 python3-pluggy all 1.5.0-1 [26.9 kB]
 Get: 301 http://deb.debian.org/debian unstable/main i386 python3-pytest all 8.3.4-1 [250 kB]
-Fetched 204 MB in 3s (58.4 MB/s)
+Fetched 204 MB in 5s (43.1 MB/s)
 debconf: delaying package configuration, since apt-utils is not installed
 Selecting previously unselected package libpython3.12-minimal:i386.
 (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 ... 19953 files and directories currently installed.)
@@ -1421,8 +1453,8 @@
 Setting up tzdata (2024b-4) ...
 
 Current default time zone: 'Etc/UTC'
-Local time is now:      Sat Jan 24 22:48:58 UTC 2026.
-Universal Time is now:  Sat Jan 24 22:48:58 UTC 2026.
+Local time is now:      Sun Dec 22 16:28:32 UTC 2024.
+Universal Time is now:  Sun Dec 22 16:28:32 UTC 2024.
 Run 'dpkg-reconfigure tzdata' if you wish to change it.
 
 Setting up librust-typemap-dev:i386 (0.3.3-2+b1) ...
@@ -1694,7 +1726,11 @@
 Building tag database...
  -> Finished parsing the build-deps
 I: Building the package
-I: Running cd /build/reproducible-path/python-orjson-3.10.7/ && 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  > ../python-orjson_3.10.7-2_source.changes
+I: user script /srv/workspace/pbuilder/8256/tmp/hooks/A99_set_merged_usr starting
+Not re-configuring usrmerge for unstable
+I: user script /srv/workspace/pbuilder/8256/tmp/hooks/A99_set_merged_usr finished
+hostname: Name or service not known
+I: Running cd /build/reproducible-path/python-orjson-3.10.7/ && 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  > ../python-orjson_3.10.7-2_source.changes
 dpkg-buildpackage: info: source package python-orjson
 dpkg-buildpackage: info: source version 3.10.7-2
 dpkg-buildpackage: info: source distribution unstable
@@ -1733,40 +1769,40 @@
    Compiling target-lexicon v0.12.14
    Compiling proc-macro2 v1.0.86
    Compiling unicode-ident v1.0.13
-   Compiling once_cell v1.20.2
    Compiling serde v1.0.215
+   Compiling once_cell v1.20.2
    Compiling rustversion v1.0.14
    Compiling autocfg v1.1.0
-   Compiling cfg-if v1.0.0
    Compiling libc v0.2.168
+   Compiling cfg-if v1.0.0
    Compiling shlex v1.3.0
-   Compiling itoa v1.0.14
    Compiling version_check v0.9.5
-   Compiling ryu v1.0.15
    Compiling serde_json v1.0.133
+   Compiling ryu v1.0.15
+   Compiling itoa v1.0.14
+   Compiling cc v1.1.14
    Compiling static_assertions v1.1.0
    Compiling memchr v2.7.4
+   Compiling half v2.4.1
+   Compiling encoding_rs v0.8.33
    Compiling associative-cache v2.0.0
-   Compiling itoap v1.0.1
-   Compiling bytecount v0.6.7
    Compiling simdutf8 v0.1.4
+   Compiling num-traits v0.2.19
    Compiling smallvec v1.13.2
+   Compiling itoap v1.0.1
    Compiling xxhash-rust v0.8.6
-   Compiling encoding_rs v0.8.33
-   Compiling half v2.4.1
-   Compiling cc v1.1.14
-   Compiling num-traits v0.2.19
-   Compiling castaway v0.2.3
+   Compiling bytecount v0.6.7
    Compiling pyo3-build-config v0.22.6
    Compiling quote v1.0.37
+   Compiling castaway v0.2.3
    Compiling syn v2.0.85
    Compiling chrono v0.4.38
    Compiling pyo3-ffi v0.22.6
    Compiling orjson v3.10.7 (/build/reproducible-path/python-orjson-3.10.7)
    Compiling serde_derive v1.0.215
+   Compiling beef v0.5.2
    Compiling arrayvec v0.7.4
    Compiling compact_str v0.8.0
-   Compiling beef v0.5.2
 warning: unexpected `cfg` condition value: `unwind`
   --> src/lib.rs:19:7
    |
@@ -1888,7 +1924,7 @@
     = note: shared references to mutable statics are dangerous; it's undefined behavior if the static is mutated or if a mutable reference is created for it while the shared reference lives
 
 warning: `orjson` (lib) generated 15 warnings
-    Finished `release` profile [optimized] target(s) in 25.11s
+    Finished `release` profile [optimized] target(s) in 46.12s
 📦 Built wheel for CPython 3.13 to /build/reproducible-path/python-orjson-3.10.7/target/wheels/orjson-3.10.7-cp313-cp313-linux_i686.whl
 /build/reproducible-path/python-orjson-3.10.7/target/wheels/orjson-3.10.7-cp313-cp313-linux_i686.whl
 Successfully built orjson-3.10.7-cp313-cp313-linux_i686.whl
@@ -2026,7 +2062,7 @@
     = note: shared references to mutable statics are dangerous; it's undefined behavior if the static is mutated or if a mutable reference is created for it while the shared reference lives
 
 warning: `orjson` (lib) generated 15 warnings
-    Finished `release` profile [optimized] target(s) in 16.68s
+    Finished `release` profile [optimized] target(s) in 35.19s
 📦 Built wheel for CPython 3.12 to /build/reproducible-path/python-orjson-3.10.7/target/wheels/orjson-3.10.7-cp312-cp312-linux_i686.whl
 /build/reproducible-path/python-orjson-3.10.7/target/wheels/orjson-3.10.7-cp312-cp312-linux_i686.whl
 Successfully built orjson-3.10.7-cp312-cp312-linux_i686.whl
@@ -2082,7 +2118,7 @@
 test/test_ujson.py ....................................................  [ 99%]
 test/test_uuid.py .........                                              [100%]
 
-====================== 1130 passed, 108 skipped in 10.65s ======================
+====================== 1130 passed, 108 skipped in 16.25s ======================
 I: pybuild base:311: cd /build/reproducible-path/python-orjson-3.10.7/.pybuild/cpython3_3.12_orjson/build; python3.12 -m pytest test
 ============================= test session starts ==============================
 platform linux -- Python 3.12.8, pytest-8.3.4, pluggy-1.5.0
@@ -2133,7 +2169,7 @@
 test/test_ujson.py ....................................................  [ 99%]
 test/test_uuid.py .........                                              [100%]
 
-====================== 1130 passed, 108 skipped in 10.11s ======================
+====================== 1130 passed, 108 skipped in 19.21s ======================
    create-stamp debian/debhelper-build-stamp
    dh_testroot -O--buildsystem=pybuild
    dh_prep -O--buildsystem=pybuild
@@ -2164,9 +2200,9 @@
  diversion by libc6 from: /lib/ld-linux.so.2
 dpkg-shlibdeps: warning: diversions involved - output may be incorrect
  diversion by libc6 to: /lib/ld-linux.so.2.usr-is-merged
-dpkg-shlibdeps: warning: debian/python3-orjson/usr/lib/python3/dist-packages/orjson/orjson.cpython-312-i386-linux-gnu.so contains an unresolvable reference to symbol PyCallable_Check: it's probably a plugin
+dpkg-shlibdeps: warning: debian/python3-orjson/usr/lib/python3/dist-packages/orjson/orjson.cpython-312-i386-linux-gnu.so contains an unresolvable reference to symbol PyType_Type: it's probably a plugin
 dpkg-shlibdeps: warning: 55 other similar warnings have been skipped (use -v to see them all)
-dpkg-shlibdeps: warning: debian/python3-orjson/usr/lib/python3/dist-packages/orjson/orjson.cpython-313-i386-linux-gnu.so contains an unresolvable reference to symbol PyUnicode_InternFromString: it's probably a plugin
+dpkg-shlibdeps: warning: debian/python3-orjson/usr/lib/python3/dist-packages/orjson/orjson.cpython-313-i386-linux-gnu.so contains an unresolvable reference to symbol PyBytes_FromStringAndSize: it's probably a plugin
 dpkg-shlibdeps: warning: 55 other similar warnings have been skipped (use -v to see them all)
    dh_installdeb -O--buildsystem=pybuild
    dh_gencontrol -O--buildsystem=pybuild
@@ -2181,12 +2217,14 @@
 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/8256/tmp/hooks/B01_cleanup starting
+I: user script /srv/workspace/pbuilder/8256/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/66061 and its subdirectories
-I: Current time: Sat Jan 24 10:50:22 -12 2026
-I: pbuilder-time-stamp: 1769295022
+I: removing directory /srv/workspace/pbuilder/8256 and its subdirectories
+I: Current time: Mon Dec 23 06:31:18 +14 2024
+I: pbuilder-time-stamp: 1734885078