Diff of the two buildlogs:

--
--- b1/build.log	2025-01-30 18:04:11.417806354 +0000
+++ b2/build.log	2025-01-30 18:05:08.127248825 +0000
@@ -1,6 +1,6 @@
 I: pbuilder: network access will be disabled during build
-I: Current time: Thu Jan 30 06:02:34 -12 2025
-I: pbuilder-time-stamp: 1738260154
+I: Current time: Thu Mar  5 14:27:13 +14 2026
+I: pbuilder-time-stamp: 1772670433
 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 ruby-ejs_1.1.1-2.1.debian.tar.xz
 I: using fakeroot in build.
 I: Installing the build-deps
-I: user script /srv/workspace/pbuilder/37725/tmp/hooks/D02_print_environment starting
+I: user script /srv/workspace/pbuilder/55322/tmp/hooks/D01_modify_environment starting
+debug: Running on ionos6-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 Mar  5 00:27 /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/55322/tmp/hooks/D01_modify_environment finished
+I: user script /srv/workspace/pbuilder/55322/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='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=21 '
+  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='f8fb0dd5bb124319a082fdb85e8a470a'
-  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='37725'
-  PS1='# '
-  PS2='> '
+  INVOCATION_ID=4caf6d48d6cc44d7b3249600c7133dc9
+  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=55322
   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.B8P3LgXG/pbuilderrc_iFBF --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.B8P3LgXG/b1 --logfile b1/build.log ruby-ejs_1.1.1-2.1.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.B8P3LgXG/pbuilderrc_QlcL --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.B8P3LgXG/b2 --logfile b2/build.log ruby-ejs_1.1.1-2.1.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 ionos2-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 14:40 /bin -> usr/bin
-I: user script /srv/workspace/pbuilder/37725/tmp/hooks/D02_print_environment finished
+  lrwxrwxrwx 1 root root 7 Nov 22  2024 /bin -> usr/bin
+I: user script /srv/workspace/pbuilder/55322/tmp/hooks/D02_print_environment finished
  -> Attempting to satisfy build-dependencies
  -> Creating pbuilder-satisfydepends-dummy package
 Package: pbuilder-satisfydepends-dummy
@@ -267,7 +299,7 @@
 Get: 153 http://deb.debian.org/debian unstable/main i386 libnode115 i386 20.18.2+dfsg-1 [12.1 MB]
 Get: 154 http://deb.debian.org/debian unstable/main i386 ruby-multi-json all 1.14.1-2 [20.4 kB]
 Get: 155 http://deb.debian.org/debian unstable/main i386 ruby-execjs all 2.8.1-2 [15.6 kB]
-Fetched 70.7 MB in 1s (67.3 MB/s)
+Fetched 70.7 MB in 1s (51.3 MB/s)
 Preconfiguring packages ...
 Selecting previously unselected package libpython3.13-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 ... 19828 files and directories currently installed.)
@@ -785,8 +817,8 @@
 Setting up tzdata (2025a-1) ...
 
 Current default time zone: 'Etc/UTC'
-Local time is now:      Thu Jan 30 18:03:20 UTC 2025.
-Universal Time is now:  Thu Jan 30 18:03:20 UTC 2025.
+Local time is now:      Thu Mar  5 00:27:38 UTC 2026.
+Universal Time is now:  Thu Mar  5 00:27:38 UTC 2026.
 Run 'dpkg-reconfigure tzdata' if you wish to change it.
 
 Setting up ruby-minitest (5.25.4-1) ...
@@ -929,7 +961,11 @@
 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/ruby-ejs-1.1.1/ && 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  > ../ruby-ejs_1.1.1-2.1_source.changes
+I: user script /srv/workspace/pbuilder/55322/tmp/hooks/A99_set_merged_usr starting
+Not re-configuring usrmerge for unstable
+I: user script /srv/workspace/pbuilder/55322/tmp/hooks/A99_set_merged_usr finished
+hostname: Name or service not known
+I: Running cd /build/reproducible-path/ruby-ejs-1.1.1/ && 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  > ../ruby-ejs_1.1.1-2.1_source.changes
 dpkg-buildpackage: info: source package ruby-ejs
 dpkg-buildpackage: info: source version 1.1.1-2.1
 dpkg-buildpackage: info: source distribution unstable
@@ -987,37 +1023,37 @@
 Loaded suite /usr/share/rubygems-integration/all/gems/rake-13.2.1/lib/rake/rake_test_loader
 Started
 EJSCompilationTest: 
-  test "compile with custom syntax":			.: (0.000366)
-  test "compile":					.: (0.000152)
+  test "compile with custom syntax":			.: (0.002001)
+  test "compile":					.: (0.000183)
 EJSCustomPatternTest: 
-  test "compile with custom syntax":			.: (0.000234)
-  test "compile":					.: (0.000134)
+  test "compile with custom syntax":			.: (0.000285)
+  test "compile":					.: (0.000171)
 EJSEvaluationTest: 
-  test "backslashes into interpolation":		.: (0.481882)
-  test "backslashes":					.: (0.447540)
-  test "braced escaping":				.: (1.921531)
-  test "braced iteration":				.: (0.490360)
-  test "braced quotes in statement and body":		.: (0.432762)
-  test "braced quotes":					.: (0.412079)
-  test "escaping":					.: (1.692086)
-  test "implicit semicolon":				.: (0.458804)
-  test "iteration":					.: (0.449938)
-  test "newlines and tabs":				.: (0.479155)
-  test "question-mark escaping":			.: (1.859558)
-  test "question-marked iteration":			.: (0.418378)
-  test "question-marked quote in statement and body":	.: (0.421551)
-  test "question-marked quotes":			.: (0.420369)
-  test "quote in statement and body":			.: (0.443645)
-  test "quotes":					.: (0.432740)
-  test "two quotes":					.: (0.420313)
-  test "without interpolation":				.: (0.465296)
+  test "backslashes into interpolation":		.: (0.354704)
+  test "backslashes":					.: (0.300889)
+  test "braced escaping":				.: (1.219577)
+  test "braced iteration":				.: (0.295865)
+  test "braced quotes in statement and body":		.: (0.302458)
+  test "braced quotes":					.: (0.295570)
+  test "escaping":					.: (1.194261)
+  test "implicit semicolon":				.: (0.295982)
+  test "iteration":					.: (0.298448)
+  test "newlines and tabs":				.: (0.300680)
+  test "question-mark escaping":			.: (1.200531)
+  test "question-marked iteration":			.: (0.298116)
+  test "question-marked quote in statement and body":	.: (0.312656)
+  test "question-marked quotes":			.: (0.308595)
+  test "quote in statement and body":			.: (0.294114)
+  test "quotes":					.: (0.347198)
+  test "two quotes":					.: (0.291685)
+  test "without interpolation":				.: (0.292109)
 
-Finished in 12.153081272 seconds.
+Finished in 8.20859437 seconds.
 -------------------------------------------------------------------------------
 22 tests, 35 assertions, 0 failures, 0 errors, 0 pendings, 0 omissions, 0 notifications
 100% passed
 -------------------------------------------------------------------------------
-1.81 tests/s, 2.88 assertions/s
+2.68 tests/s, 4.26 assertions/s
 /usr/bin/ruby3.1 /usr/bin/gem2deb-test-runner
 
 ┌──────────────────────────────────────────────────────────────────────────────┐
@@ -1029,37 +1065,37 @@
 Loaded suite /usr/share/rubygems-integration/all/gems/rake-13.2.1/lib/rake/rake_test_loader
 Started
 EJSCompilationTest: 
-  test "compile with custom syntax":			.: (0.002991)
-  test "compile":					.: (0.000270)
+  test "compile with custom syntax":			.: (0.001814)
+  test "compile":					.: (0.000189)
 EJSCustomPatternTest: 
-  test "compile with custom syntax":			.: (0.000430)
-  test "compile":					.: (0.000241)
+  test "compile with custom syntax":			.: (0.000253)
+  test "compile":					.: (0.000182)
 EJSEvaluationTest: 
-  test "backslashes into interpolation":		.: (0.480114)
-  test "backslashes":					.: (0.423605)
-  test "braced escaping":				.: (1.831350)
-  test "braced iteration":				.: (0.474414)
-  test "braced quotes in statement and body":		.: (0.776940)
-  test "braced quotes":					.: (0.408525)
-  test "escaping":					.: (1.654187)
-  test "implicit semicolon":				.: (0.410279)
-  test "iteration":					.: (0.406847)
-  test "newlines and tabs":				.: (0.428713)
-  test "question-mark escaping":			.: (1.825001)
-  test "question-marked iteration":			.: (0.426656)
-  test "question-marked quote in statement and body":	.: (0.405794)
-  test "question-marked quotes":			.: (0.401369)
-  test "quote in statement and body":			.: (0.432894)
-  test "quotes":					.: (0.400424)
-  test "two quotes":					.: (0.406754)
-  test "without interpolation":				.: (0.412699)
+  test "backslashes into interpolation":		.: (0.314799)
+  test "backslashes":					.: (0.319980)
+  test "braced escaping":				.: (1.171844)
+  test "braced iteration":				.: (0.294500)
+  test "braced quotes in statement and body":		.: (0.297658)
+  test "braced quotes":					.: (0.295360)
+  test "escaping":					.: (1.203108)
+  test "implicit semicolon":				.: (0.292086)
+  test "iteration":					.: (0.294432)
+  test "newlines and tabs":				.: (0.320705)
+  test "question-mark escaping":			.: (1.232552)
+  test "question-marked iteration":			.: (0.300025)
+  test "question-marked quote in statement and body":	.: (0.299513)
+  test "question-marked quotes":			.: (0.346071)
+  test "quote in statement and body":			.: (0.297929)
+  test "quotes":					.: (0.294982)
+  test "two quotes":					.: (0.295020)
+  test "without interpolation":				.: (0.294466)
 
-Finished in 12.015826868 seconds.
+Finished in 8.170450572 seconds.
 -------------------------------------------------------------------------------
 22 tests, 35 assertions, 0 failures, 0 errors, 0 pendings, 0 omissions, 0 notifications
 100% passed
 -------------------------------------------------------------------------------
-1.83 tests/s, 2.91 assertions/s
+2.69 tests/s, 4.28 assertions/s
 
 ┌──────────────────────────────────────────────────────────────────────────────┐
 │ dh_ruby --install finished                                                   │
@@ -1097,12 +1133,14 @@
 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/55322/tmp/hooks/B01_cleanup starting
+I: user script /srv/workspace/pbuilder/55322/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/37725 and its subdirectories
-I: Current time: Thu Jan 30 06:04:10 -12 2025
-I: pbuilder-time-stamp: 1738260250
+I: removing directory /srv/workspace/pbuilder/55322 and its subdirectories
+I: Current time: Thu Mar  5 14:28:07 +14 2026
+I: pbuilder-time-stamp: 1772670487