Diff of the two buildlogs:

--
--- b1/build.log	2024-04-01 16:55:21.701031241 +0000
+++ b2/build.log	2024-04-01 16:57:07.984507053 +0000
@@ -1,6 +1,6 @@
 I: pbuilder: network access will be disabled during build
-I: Current time: Mon Apr  1 04:53:47 -12 2024
-I: pbuilder-time-stamp: 1711990427
+I: Current time: Tue Apr  2 06:55:31 +14 2024
+I: pbuilder-time-stamp: 1711990531
 I: Building the build Environment
 I: extracting base tarball [/var/cache/pbuilder/trixie-reproducible-base.tgz]
 I: copying local configuration
@@ -25,52 +25,84 @@
 dpkg-source: info: unpacking libschedule-cron-perl_1.05-1.debian.tar.xz
 I: Not using root during the build.
 I: Installing the build-deps
-I: user script /srv/workspace/pbuilder/31209/tmp/hooks/D02_print_environment starting
+I: user script /srv/workspace/pbuilder/17419/tmp/hooks/D01_modify_environment starting
+debug: Running on virt64a.
+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  1 16:55 /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/17419/tmp/hooks/D01_modify_environment finished
+I: user script /srv/workspace/pbuilder/17419/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='armhf'
-  DEBIAN_FRONTEND='noninteractive'
-  DEB_BUILD_OPTIONS='buildinfo=+all reproducible=+all parallel=3 '
-  DISTRIBUTION='trixie'
-  HOME='/root'
-  HOST_ARCH='armhf'
+  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]="21" [3]="1" [4]="release" [5]="arm-unknown-linux-gnueabihf")
+  BASH_VERSION='5.2.21(1)-release'
+  BUILDDIR=/build/reproducible-path
+  BUILDUSERGECOS='second user,second room,second work-phone,second home-phone,second other'
+  BUILDUSERNAME=pbuilder2
+  BUILD_ARCH=armhf
+  DEBIAN_FRONTEND=noninteractive
+  DEB_BUILD_OPTIONS='buildinfo=+all reproducible=+all parallel=4 '
+  DIRSTACK=()
+  DISTRIBUTION=trixie
+  EUID=0
+  FUNCNAME=([0]="Echo" [1]="main")
+  GROUPS=()
+  HOME=/root
+  HOSTNAME=i-capture-the-hostname
+  HOSTTYPE=arm
+  HOST_ARCH=armhf
   IFS=' 	
   '
-  INVOCATION_ID='5781963a78a0457bb9cdf444885f3b5f'
-  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='31209'
-  PS1='# '
-  PS2='> '
+  INVOCATION_ID=086225c6deb04701b062bb7205155132
+  LANG=C
+  LANGUAGE=it_CH:it
+  LC_ALL=C
+  MACHTYPE=arm-unknown-linux-gnueabihf
+  MAIL=/var/mail/root
+  OPTERR=1
+  OPTIND=1
+  OSTYPE=linux-gnueabihf
+  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=17419
   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.yMCoDrD4/pbuilderrc_VkAj --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.yMCoDrD4/b1 --logfile b1/build.log libschedule-cron-perl_1.05-1.dsc'
-  SUDO_GID='110'
-  SUDO_UID='103'
-  SUDO_USER='jenkins'
-  TERM='unknown'
-  TZ='/usr/share/zoneinfo/Etc/GMT+12'
-  USER='root'
-  _='/usr/bin/systemd-run'
-  http_proxy='http://10.0.0.15:3142/'
+  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.yMCoDrD4/pbuilderrc_ECZD --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.yMCoDrD4/b2 --logfile b2/build.log libschedule-cron-perl_1.05-1.dsc'
+  SUDO_GID=114
+  SUDO_UID=108
+  SUDO_USER=jenkins
+  TERM=unknown
+  TZ=/usr/share/zoneinfo/Etc/GMT-14
+  UID=0
+  USER=root
+  _='I: set'
+  http_proxy=http://10.0.0.15:3142/
 I: uname -a
-  Linux virt32z 6.1.0-18-armmp-lpae #1 SMP Debian 6.1.76-1 (2024-02-01) armv7l GNU/Linux
+  Linux i-capture-the-hostname 6.1.0-18-arm64 #1 SMP Debian 6.1.76-1 (2024-02-01) aarch64 GNU/Linux
 I: ls -l /bin
-  lrwxrwxrwx 1 root root 7 Apr  1 11:24 /bin -> usr/bin
-I: user script /srv/workspace/pbuilder/31209/tmp/hooks/D02_print_environment finished
+  lrwxrwxrwx 1 root root 7 Mar 26 11:25 /bin -> usr/bin
+I: user script /srv/workspace/pbuilder/17419/tmp/hooks/D02_print_environment finished
  -> Attempting to satisfy build-dependencies
  -> Creating pbuilder-satisfydepends-dummy package
 Package: pbuilder-satisfydepends-dummy
@@ -148,7 +180,7 @@
 Get: 34 http://deb.debian.org/debian trixie/main armhf libtest-pod-coverage-perl all 1.10-3 [14.9 kB]
 Get: 35 http://deb.debian.org/debian trixie/main armhf libtest-pod-perl all 1.52-3 [12.6 kB]
 Get: 36 http://deb.debian.org/debian trixie/main armhf libtime-parsedate-perl all 2015.103-4 [32.5 kB]
-Fetched 18.5 MB in 0s (74.5 MB/s)
+Fetched 18.5 MB in 0s (40.4 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%
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(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 ... 19637 files and directories currently installed.)
@@ -309,7 +341,11 @@
 Building tag database...
  -> Finished parsing the build-deps
 I: Building the package
-I: Running cd /build/reproducible-path/libschedule-cron-perl-1.05/ && 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  > ../libschedule-cron-perl_1.05-1_source.changes
+I: user script /srv/workspace/pbuilder/17419/tmp/hooks/A99_set_merged_usr starting
+Not re-configuring usrmerge for trixie
+I: user script /srv/workspace/pbuilder/17419/tmp/hooks/A99_set_merged_usr finished
+hostname: Name or service not known
+I: Running cd /build/reproducible-path/libschedule-cron-perl-1.05/ && 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  > ../libschedule-cron-perl_1.05-1_source.changes
 dpkg-buildpackage: info: source package libschedule-cron-perl
 dpkg-buildpackage: info: source version 1.05-1
 dpkg-buildpackage: info: source distribution unstable
@@ -331,7 +367,7 @@
 Writing Makefile for Schedule::Cron
 Writing MYMETA.yml and MYMETA.json
    dh_auto_build
-	make -j3
+	make -j4
 make[1]: Entering directory '/build/reproducible-path/libschedule-cron-perl-1.05'
 cp lib/Schedule/Cron.pm blib/lib/Schedule/Cron.pm
 Manifying 1 pod document
@@ -339,7 +375,7 @@
    debian/rules override_dh_auto_test
 make[1]: Entering directory '/build/reproducible-path/libschedule-cron-perl-1.05'
 dh_auto_test -- TEST_FILES="t/after_job.t t/callbackreschedule.t t/delete_entry.t t/dst_back.t t/entry.t t/execution_time.t t/load_crontab.t t/nofork.t t/pod.t t/pod_coverage.t t/pretty_print_args.t t/process_name.t t/same_time_with_reschedule.t t/sighandler.t t/startup.t t/timeshift.t"
-	make -j3 test TEST_VERBOSE=1 "TEST_FILES=t/after_job.t t/callbackreschedule.t t/delete_entry.t t/dst_back.t t/entry.t t/execution_time.t t/load_crontab.t t/nofork.t t/pod.t t/pod_coverage.t t/pretty_print_args.t t/process_name.t t/same_time_with_reschedule.t t/sighandler.t t/startup.t t/timeshift.t"
+	make -j4 test TEST_VERBOSE=1 "TEST_FILES=t/after_job.t t/callbackreschedule.t t/delete_entry.t t/dst_back.t t/entry.t t/execution_time.t t/load_crontab.t t/nofork.t t/pod.t t/pod_coverage.t t/pretty_print_args.t t/process_name.t t/same_time_with_reschedule.t t/sighandler.t t/startup.t t/timeshift.t"
 make[2]: Entering directory '/build/reproducible-path/libschedule-cron-perl-1.05'
 PERL_DL_NONLAZY=1 "/usr/bin/perl" "-MExtUtils::Command::MM" "-MTest::Harness" "-e" "undef *Test::Harness::Switches; test_harness(1, 'blib/lib', 'blib/arch')" t/after_job.t t/callbackreschedule.t t/delete_entry.t t/dst_back.t t/entry.t t/execution_time.t t/load_crontab.t t/nofork.t t/pod.t t/pod_coverage.t t/pretty_print_args.t t/process_name.t t/same_time_with_reschedule.t t/sighandler.t t/startup.t t/timeshift.t
 t/after_job.t .................. 
@@ -669,11 +705,11 @@
 ok 1 - Simple nofork - Second Job finished
 ok 2 - Simple nofork - Cron has been run: ok
 # Schedule::Cron - Starting job 0
-# Job 2.1  Mon Apr  1 16:54:44 2024
+# Job 2.1  Mon Apr  1 16:56:29 2024
 # Schedule::Cron - Finished job 0
 # Schedule::Cron - Skipping job 1
 # Schedule::Cron - Starting job 0
-# Job 2.1  Mon Apr  1 16:54:48 2024
+# Job 2.1  Mon Apr  1 16:56:33 2024
 ok 3 - Nofork with skip - Skip test passed
 ok 4 - Nofork with skip - Cron has been run: ok
 # Schedule::Cron - Starting job 0
@@ -729,14 +765,14 @@
 ok 1 - Call was shifted by 2 seconds (<= 3)
 ok
 All tests successful.
-Files=16, Tests=108, 41 wallclock secs ( 0.13 usr  0.08 sys +  2.58 cusr  0.56 csys =  3.35 CPU)
+Files=16, Tests=108, 41 wallclock secs ( 0.14 usr  0.06 sys +  3.98 cusr  0.40 csys =  4.58 CPU)
 Result: PASS
 make[2]: Leaving directory '/build/reproducible-path/libschedule-cron-perl-1.05'
 make[1]: Leaving directory '/build/reproducible-path/libschedule-cron-perl-1.05'
    create-stamp debian/debhelper-build-stamp
    dh_prep
    dh_auto_install --destdir=debian/libschedule-cron-perl/
-	make -j3 install DESTDIR=/build/reproducible-path/libschedule-cron-perl-1.05/debian/libschedule-cron-perl AM_UPDATE_INFO_DIR=no PREFIX=/usr
+	make -j4 install DESTDIR=/build/reproducible-path/libschedule-cron-perl-1.05/debian/libschedule-cron-perl AM_UPDATE_INFO_DIR=no PREFIX=/usr
 make[1]: Entering directory '/build/reproducible-path/libschedule-cron-perl-1.05'
 Manifying 1 pod document
 Installing /build/reproducible-path/libschedule-cron-perl-1.05/debian/libschedule-cron-perl/usr/share/perl5/Schedule/Cron.pm
@@ -764,12 +800,14 @@
 dpkg-buildpackage: info: binary-only upload (no source included)
 dpkg-genchanges: info: including full source code in upload
 I: copying local configuration
+I: user script /srv/workspace/pbuilder/17419/tmp/hooks/B01_cleanup starting
+I: user script /srv/workspace/pbuilder/17419/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/31209 and its subdirectories
-I: Current time: Mon Apr  1 04:55:17 -12 2024
-I: pbuilder-time-stamp: 1711990517
+I: removing directory /srv/workspace/pbuilder/17419 and its subdirectories
+I: Current time: Tue Apr  2 06:57:03 +14 2024
+I: pbuilder-time-stamp: 1711990623