Diff of the two buildlogs:

--
--- b1/build.log	2025-03-16 05:59:47.186082235 +0000
+++ b2/build.log	2025-03-16 06:06:51.822939588 +0000
@@ -1,6 +1,6 @@
 I: pbuilder: network access will be disabled during build
-I: Current time: Sat Apr 18 00:20:33 -12 2026
-I: pbuilder-time-stamp: 1776514833
+I: Current time: Sun Mar 16 19:59:50 +14 2025
+I: pbuilder-time-stamp: 1742104790
 I: Building the build Environment
 I: extracting base tarball [/var/cache/pbuilder/trixie-reproducible-base.tgz]
 I: copying local configuration
@@ -22,52 +22,84 @@
 dpkg-source: info: unpacking con-duct_0.11.0-1.debian.tar.xz
 I: Not using root during the build.
 I: Installing the build-deps
-I: user script /srv/workspace/pbuilder/1770630/tmp/hooks/D02_print_environment starting
+I: user script /srv/workspace/pbuilder/343810/tmp/hooks/D01_modify_environment starting
+debug: Running on ionos11-amd64.
+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 Mar 16 06:00 /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/343810/tmp/hooks/D01_modify_environment finished
+I: user script /srv/workspace/pbuilder/343810/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='amd64'
-  DEBIAN_FRONTEND='noninteractive'
-  DEB_BUILD_OPTIONS='buildinfo=+all reproducible=+all parallel=42 '
-  DISTRIBUTION='trixie'
-  HOME='/root'
-  HOST_ARCH='amd64'
+  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]="x86_64-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=amd64
+  DEBIAN_FRONTEND=noninteractive
+  DEB_BUILD_OPTIONS='buildinfo=+all reproducible=+all parallel=20 '
+  DIRSTACK=()
+  DISTRIBUTION=trixie
+  EUID=0
+  FUNCNAME=([0]="Echo" [1]="main")
+  GROUPS=()
+  HOME=/root
+  HOSTNAME=i-capture-the-hostname
+  HOSTTYPE=x86_64
+  HOST_ARCH=amd64
   IFS=' 	
   '
-  INVOCATION_ID='835d9c56b3244d3cb19ab5e8d7d5f96d'
-  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='1770630'
-  PS1='# '
-  PS2='> '
+  INVOCATION_ID=b8ae21d9630f4825b4beedb630c44772
+  LANG=C
+  LANGUAGE=et_EE:et
+  LC_ALL=C
+  MACHTYPE=x86_64-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=343810
   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.Xxawwjeb/pbuilderrc_HSoG --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.Xxawwjeb/b1 --logfile b1/build.log con-duct_0.11.0-1.dsc'
-  SUDO_GID='110'
-  SUDO_UID='105'
-  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.Xxawwjeb/pbuilderrc_2fmA --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.Xxawwjeb/b2 --logfile b2/build.log con-duct_0.11.0-1.dsc'
+  SUDO_GID=111
+  SUDO_UID=106
+  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 ionos5-amd64 6.12.12+bpo-amd64 #1 SMP PREEMPT_DYNAMIC Debian 6.12.12-1~bpo12+1 (2025-02-23) 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  2025 /bin -> usr/bin
-I: user script /srv/workspace/pbuilder/1770630/tmp/hooks/D02_print_environment finished
+  lrwxrwxrwx 1 root root 7 Mar  4 11:20 /bin -> usr/bin
+I: user script /srv/workspace/pbuilder/343810/tmp/hooks/D02_print_environment finished
  -> Attempting to satisfy build-dependencies
  -> Creating pbuilder-satisfydepends-dummy package
 Package: pbuilder-satisfydepends-dummy
@@ -286,7 +318,7 @@
 Get: 161 http://deb.debian.org/debian trixie/main amd64 python3-pytest all 8.3.4-1 [250 kB]
 Get: 162 http://deb.debian.org/debian trixie/main amd64 python3-pytest-cov all 5.0.0-1 [26.8 kB]
 Get: 163 http://deb.debian.org/debian trixie/main amd64 python3-yaml amd64 6.0.2-1+b2 [136 kB]
-Fetched 114 MB in 12s (9128 kB/s)
+Fetched 114 MB in 13s (8932 kB/s)
 Preconfiguring packages ...
 Selecting previously unselected package liblocale-gettext-perl.
 (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 ... 19803 files and directories currently installed.)
@@ -822,8 +854,8 @@
 Setting up tzdata (2025a-2) ...
 
 Current default time zone: 'Etc/UTC'
-Local time is now:      Sat Apr 18 12:21:31 UTC 2026.
-Universal Time is now:  Sat Apr 18 12:21:31 UTC 2026.
+Local time is now:      Sun Mar 16 06:02:18 UTC 2025.
+Universal Time is now:  Sun Mar 16 06:02:18 UTC 2025.
 Run 'dpkg-reconfigure tzdata' if you wish to change it.
 
 Setting up unicode-data (15.1.0-1) ...
@@ -970,7 +1002,11 @@
 Building tag database...
  -> Finished parsing the build-deps
 I: Building the package
-I: Running cd /build/reproducible-path/con-duct-0.11.0/ && 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  > ../con-duct_0.11.0-1_source.changes
+I: user script /srv/workspace/pbuilder/343810/tmp/hooks/A99_set_merged_usr starting
+Not re-configuring usrmerge for trixie
+I: user script /srv/workspace/pbuilder/343810/tmp/hooks/A99_set_merged_usr finished
+hostname: Name or service not known
+I: Running cd /build/reproducible-path/con-duct-0.11.0/ && 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  > ../con-duct_0.11.0-1_source.changes
 dpkg-buildpackage: info: source package con-duct
 dpkg-buildpackage: info: source version 0.11.0-1
 dpkg-buildpackage: info: source distribution unstable
@@ -997,13 +1033,13 @@
 running build_py
 creating build/lib/con_duct
 copying src/con_duct/__init__.py -> build/lib/con_duct
-copying src/con_duct/utils.py -> build/lib/con_duct
 copying src/con_duct/__main__.py -> build/lib/con_duct
+copying src/con_duct/utils.py -> build/lib/con_duct
 creating build/lib/con_duct/suite
-copying src/con_duct/suite/pprint_json.py -> build/lib/con_duct/suite
+copying src/con_duct/suite/plot.py -> build/lib/con_duct/suite
 copying src/con_duct/suite/ls.py -> build/lib/con_duct/suite
 copying src/con_duct/suite/main.py -> build/lib/con_duct/suite
-copying src/con_duct/suite/plot.py -> build/lib/con_duct/suite
+copying src/con_duct/suite/pprint_json.py -> build/lib/con_duct/suite
 running egg_info
 creating src/con_duct.egg-info
 writing src/con_duct.egg-info/PKG-INFO
@@ -1025,19 +1061,19 @@
 creating build/bdist.linux-x86_64/wheel
 creating build/bdist.linux-x86_64/wheel/con_duct
 copying build/lib/con_duct/__init__.py -> build/bdist.linux-x86_64/wheel/./con_duct
-copying build/lib/con_duct/utils.py -> build/bdist.linux-x86_64/wheel/./con_duct
 copying build/lib/con_duct/py.typed -> build/bdist.linux-x86_64/wheel/./con_duct
 creating build/bdist.linux-x86_64/wheel/con_duct/suite
-copying build/lib/con_duct/suite/pprint_json.py -> build/bdist.linux-x86_64/wheel/./con_duct/suite
+copying build/lib/con_duct/suite/plot.py -> build/bdist.linux-x86_64/wheel/./con_duct/suite
 copying build/lib/con_duct/suite/ls.py -> build/bdist.linux-x86_64/wheel/./con_duct/suite
 copying build/lib/con_duct/suite/main.py -> build/bdist.linux-x86_64/wheel/./con_duct/suite
-copying build/lib/con_duct/suite/plot.py -> build/bdist.linux-x86_64/wheel/./con_duct/suite
+copying build/lib/con_duct/suite/pprint_json.py -> build/bdist.linux-x86_64/wheel/./con_duct/suite
 copying build/lib/con_duct/__main__.py -> build/bdist.linux-x86_64/wheel/./con_duct
+copying build/lib/con_duct/utils.py -> build/bdist.linux-x86_64/wheel/./con_duct
 running install_egg_info
 Copying src/con_duct.egg-info to build/bdist.linux-x86_64/wheel/./con_duct-0.11.0.egg-info
 running install_scripts
 creating build/bdist.linux-x86_64/wheel/con_duct-0.11.0.dist-info/WHEEL
-creating '/build/reproducible-path/con-duct-0.11.0/.pybuild/cpython3_3.13_con-duct/.tmp-7g_mg9ph/con_duct-0.11.0-py3-none-any.whl' and adding 'build/bdist.linux-x86_64/wheel' to it
+creating '/build/reproducible-path/con-duct-0.11.0/.pybuild/cpython3_3.13_con-duct/.tmp-z7hgr6x4/con_duct-0.11.0-py3-none-any.whl' and adding 'build/bdist.linux-x86_64/wheel' to it
 adding 'con_duct/__init__.py'
 adding 'con_duct/__main__.py'
 adding 'con_duct/py.typed'
@@ -1061,13 +1097,13 @@
 platform linux -- Python 3.13.2, pytest-8.3.4, pluggy-1.5.0
 rootdir: /build/reproducible-path/con-duct-0.11.0
 configfile: tox.ini
-plugins: typeguard-4.4.2, cov-5.0.0
+plugins: cov-5.0.0, typeguard-4.4.2
 collected 209 items
 
 test/test_aggregation.py ..............                                  [  6%]
 test/test_arg_parsing.py ......                                          [  9%]
 test/test_e2e.py ....                                                    [ 11%]
-test/test_execution.py ...................                               [ 20%]
+test/test_execution.py .F.................                               [ 20%]
 test/test_formatter.py ..............................................    [ 42%]
 test/test_log_paths.py ..............                                    [ 49%]
 test/test_ls.py ......                                                   [ 52%]
@@ -1079,68 +1115,62 @@
 test/test_utils.py ...........                                           [ 93%]
 test/test_validation.py .............                                    [100%]
 
----------- coverage: platform linux, python 3.13.2-final-0 -----------
-Name                            Stmts   Miss  Cover
----------------------------------------------------
-con_duct/__init__.py                0      0   100%
-con_duct/__main__.py              556     13    98%
-con_duct/suite/ls.py              111     14    87%
-con_duct/suite/main.py             40      2    95%
-con_duct/suite/plot.py             40      1    98%
-con_duct/suite/pprint_json.py      15      0   100%
-con_duct/utils.py                   6      0   100%
----------------------------------------------------
-TOTAL                             768     30    96%
+=================================== FAILURES ===================================
+____________________________ test_execution_summary ____________________________
 
+temp_output_dir = '/tmp/pytest-of-pbuilder2/pytest-0/test_execution_summary0/'
 
-============================= 209 passed in 32.95s =============================
-   create-stamp debian/debhelper-build-stamp
-   dh_testroot -O--buildsystem=pybuild
-   dh_prep -O--buildsystem=pybuild
-   dh_auto_install --destdir=debian/con-duct/ -O--buildsystem=pybuild
-I: pybuild plugin_pyproject:178: Copying package built for python3.13 to destdir
-   dh_installdocs -O--buildsystem=pybuild
-   dh_installchangelogs -O--buildsystem=pybuild
-   debian/rules override_dh_installman
-make[1]: Entering directory '/build/reproducible-path/con-duct-0.11.0'
-: # Generate a manpage using help2man
-mkdir -p build
-cp -p src/con_duct/__main__.py build/duct
-help2man --no-info --no-discard-stderr \
-	-n "lightweight wrapper that collects execution data for a command" \
-	./build/duct >| build/duct.1
-rm -f build/duct
-: # Verify that manpage generated nicely -- no Errors reported
-grep -q 'ImportError:' build/duct.1 && exit 1 || :
-dh_installman
-make[1]: Leaving directory '/build/reproducible-path/con-duct-0.11.0'
-   dh_python3 -O--buildsystem=pybuild
-   dh_installsystemduser -O--buildsystem=pybuild
-   dh_perl -O--buildsystem=pybuild
-   dh_link -O--buildsystem=pybuild
-   dh_strip_nondeterminism -O--buildsystem=pybuild
-   dh_compress -O--buildsystem=pybuild
-   dh_fixperms -O--buildsystem=pybuild
-   dh_missing -O--buildsystem=pybuild
-   dh_installdeb -O--buildsystem=pybuild
-   dh_gencontrol -O--buildsystem=pybuild
-   dh_md5sums -O--buildsystem=pybuild
-   dh_builddeb -O--buildsystem=pybuild
-dpkg-deb: building package 'con-duct' in '../con-duct_0.11.0-1_all.deb'.
- dpkg-genbuildinfo --build=binary -O../con-duct_0.11.0-1_amd64.buildinfo
- dpkg-genchanges --build=binary -O../con-duct_0.11.0-1_amd64.changes
-dpkg-genchanges: info: binary-only upload (no source code included)
- dpkg-source --after-build .
-dpkg-source: info: using options from con-duct-0.11.0/debian/source/options: --extend-diff-ignore=^[^/]+.(egg-info|dist-info)/
-dpkg-buildpackage: info: binary-only upload (no source included)
-dpkg-genchanges: info: including full source code in upload
+    def test_execution_summary(temp_output_dir: str) -> None:
+        args = Arguments.from_argv(
+            ["sleep", "0.1"],
+            sample_interval=0.05,  # small enough to ensure we collect at least 1 sample
+            report_interval=0.1,
+            output_prefix=temp_output_dir,
+        )
+        assert execute(args) == 0
+        with open(os.path.join(temp_output_dir, SUFFIXES["info"])) as info:
+            info_dict = json.loads(info.read())
+        execution_summary = info_dict["execution_summary"]
+        # Since resources used should be small lets make sure values are roughly sane
+>       assert execution_summary["average_pmem"] < 10
+E       TypeError: '<' not supported between instances of 'NoneType' and 'int'
+
+test/test_execution.py:56: TypeError
+------------------------------ Captured log call -------------------------------
+INFO     con-duct:__main__.py:1043 duct is executing 'sleep 0.1'...
+INFO     con-duct:__main__.py:1044 Log files will be written to /tmp/pytest-of-pbuilder2/pytest-0/test_execution_summary0/
+INFO     con-duct:__main__.py:1112 Summary:
+Exit Code: 0
+Command: sleep 0.1
+Log files location: /tmp/pytest-of-pbuilder2/pytest-0/test_execution_summary0/
+Wall Clock Time: 0.128 sec
+Memory Peak Usage (RSS): -
+Memory Average Usage (RSS): -
+Virtual Memory Peak Usage (VSZ): -
+Virtual Memory Average Usage (VSZ): -
+Memory Peak Percentage: -%
+Memory Average Percentage: -%
+CPU Peak Usage: -%
+Average CPU Usage: -%
+=========================== short test summary info ============================
+FAILED test/test_execution.py::test_execution_summary - TypeError: '<' not su...
+=================== 1 failed, 208 passed in 87.33s (0:01:27) ===================
+E: pybuild pybuild:389: test: plugin pyproject failed with: exit code=1: cd /build/reproducible-path/con-duct-0.11.0/.pybuild/cpython3_3.13_con-duct/build; python3.13 -m pytest test
+dh_auto_test: error: pybuild --test --test-pytest -i python{version} -p 3.13 returned exit code 13
+make: *** [debian/rules:6: binary] Error 25
+dpkg-buildpackage: error: debian/rules binary subprocess returned exit status 2
 I: copying local configuration
+E: Failed autobuilding of package
+I: user script /srv/workspace/pbuilder/343810/tmp/hooks/C01_cleanup starting
+debug output: disk usage on i-capture-the-hostname at Sun Mar 16 06:06:46 UTC 2025
+Filesystem      Size  Used Avail Use% Mounted on
+tmpfs            40G     0   40G   0% /dev/shm
+
+I: user script /srv/workspace/pbuilder/343810/tmp/hooks/C01_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/1770630 and its subdirectories
-I: Current time: Sat Apr 18 00:22:46 -12 2026
-I: pbuilder-time-stamp: 1776514966
+I: removing directory /srv/workspace/pbuilder/343810 and its subdirectories