Diff of the two buildlogs:

--
--- b1/build.log	2025-07-24 17:34:26.910703077 +0000
+++ b2/build.log	2025-07-24 17:35:35.366791319 +0000
@@ -1,6 +1,6 @@
 I: pbuilder: network access will be disabled during build
-I: Current time: Thu Jul 24 05:33:25 -12 2025
-I: pbuilder-time-stamp: 1753378405
+I: Current time: Thu Aug 27 13:57:31 +14 2026
+I: pbuilder-time-stamp: 1787788651
 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 node-file-loader_6.2.0-3.debian.tar.xz
 I: Not using root during the build.
 I: Installing the build-deps
-I: user script /srv/workspace/pbuilder/3603090/tmp/hooks/D02_print_environment starting
+I: user script /srv/workspace/pbuilder/1013055/tmp/hooks/D01_modify_environment starting
+debug: Running on codethink03-arm64.
+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 Aug 26 23:57 /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/1013055/tmp/hooks/D01_modify_environment finished
+I: user script /srv/workspace/pbuilder/1013055/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='arm64'
-  DEBIAN_FRONTEND='noninteractive'
+  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]="aarch64-unknown-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=arm64
+  DEBIAN_FRONTEND=noninteractive
   DEB_BUILD_OPTIONS='buildinfo=+all reproducible=+all parallel=12 '
-  DISTRIBUTION='trixie'
-  HOME='/root'
-  HOST_ARCH='arm64'
+  DIRSTACK=()
+  DISTRIBUTION=trixie
+  EUID=0
+  FUNCNAME=([0]="Echo" [1]="main")
+  GROUPS=()
+  HOME=/root
+  HOSTNAME=i-capture-the-hostname
+  HOSTTYPE=aarch64
+  HOST_ARCH=arm64
   IFS=' 	
   '
-  INVOCATION_ID='35ed159b4e9a4770ac79cbf386bff11d'
-  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='3603090'
-  PS1='# '
-  PS2='> '
+  INVOCATION_ID=2b8ac7d6a962450d9866a8eea1173015
+  LANG=C
+  LANGUAGE=nl_BE:nl
+  LC_ALL=C
+  MACHTYPE=aarch64-unknown-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=1013055
   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.UE6lMmdc/pbuilderrc_JU0b --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.UE6lMmdc/b1 --logfile b1/build.log node-file-loader_6.2.0-3.dsc'
-  SUDO_GID='109'
-  SUDO_UID='104'
-  SUDO_USER='jenkins'
-  TERM='unknown'
-  TZ='/usr/share/zoneinfo/Etc/GMT+12'
-  USER='root'
-  _='/usr/bin/systemd-run'
-  http_proxy='http://192.168.101.4:3128'
+  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.UE6lMmdc/pbuilderrc_7JEb --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.UE6lMmdc/b2 --logfile b2/build.log node-file-loader_6.2.0-3.dsc'
+  SUDO_GID=109
+  SUDO_UID=104
+  SUDO_USER=jenkins
+  TERM=unknown
+  TZ=/usr/share/zoneinfo/Etc/GMT-14
+  UID=0
+  USER=root
+  _='I: set'
+  http_proxy=http://192.168.101.4:3128
 I: uname -a
-  Linux codethink04-arm64 6.1.0-37-cloud-arm64 #1 SMP Debian 6.1.140-1 (2025-05-22) aarch64 GNU/Linux
+  Linux i-capture-the-hostname 6.1.0-37-cloud-arm64 #1 SMP Debian 6.1.140-1 (2025-05-22) aarch64 GNU/Linux
 I: ls -l /bin
-  lrwxrwxrwx 1 root root 7 May 12 19:25 /bin -> usr/bin
-I: user script /srv/workspace/pbuilder/3603090/tmp/hooks/D02_print_environment finished
+  lrwxrwxrwx 1 root root 7 May 12  2025 /bin -> usr/bin
+I: user script /srv/workspace/pbuilder/1013055/tmp/hooks/D02_print_environment finished
  -> Attempting to satisfy build-dependencies
  -> Creating pbuilder-satisfydepends-dummy package
 Package: pbuilder-satisfydepends-dummy
@@ -500,7 +532,7 @@
 Get: 383 http://deb.debian.org/debian trixie/main arm64 node-loader-utils all 2.0.4-1 [15.5 kB]
 Get: 384 http://deb.debian.org/debian trixie/main arm64 node-schema-utils all 4.2.0~ds-3 [22.0 kB]
 Get: 385 http://deb.debian.org/debian trixie/main arm64 node-should all 13.2.3~dfsg-7 [50.0 kB]
-Fetched 49.2 MB in 0s (148 MB/s)
+Fetched 49.2 MB in 0s (149 MB/s)
 Preconfiguring packages ...
 Selecting previously unselected package netbase.
 (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 ... 19964 files and directories currently installed.)
@@ -2067,7 +2099,11 @@
 Building tag database...
  -> Finished parsing the build-deps
 I: Building the package
-I: Running cd /build/reproducible-path/node-file-loader-6.2.0/ && 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  > ../node-file-loader_6.2.0-3_source.changes
+I: user script /srv/workspace/pbuilder/1013055/tmp/hooks/A99_set_merged_usr starting
+Not re-configuring usrmerge for trixie
+I: user script /srv/workspace/pbuilder/1013055/tmp/hooks/A99_set_merged_usr finished
+hostname: Name or service not known
+I: Running cd /build/reproducible-path/node-file-loader-6.2.0/ && 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  > ../node-file-loader_6.2.0-3_source.changes
 dpkg-buildpackage: info: source package node-file-loader
 dpkg-buildpackage: info: source version 6.2.0-3
 dpkg-buildpackage: info: source distribution unstable
@@ -2089,7 +2125,7 @@
    debian/rules override_dh_auto_build
 make[1]: Entering directory '/build/reproducible-path/node-file-loader-6.2.0'
 babeljs src -d dist --ignore 'src/**/*.test.js' --copy-files
-Successfully compiled 3 files with Babel (531ms).
+Successfully compiled 3 files with Babel (553ms).
 make[1]: Leaving directory '/build/reproducible-path/node-file-loader-6.2.0'
    dh_auto_test --buildsystem=nodejs
 	mkdir -p node_modules
@@ -2098,13 +2134,13 @@
 + jest --ci test/cjs.test.js
 PASS test/cjs.test.js
   CJS
-    ✓ should export loader (5 ms)
+    ✓ should export loader (4 ms)
     ✓ should export "raw" flag (1 ms)
 
 Test Suites: 1 passed, 1 total
 Tests:       2 passed, 2 total
 Snapshots:   0 total
-Time:        1.57 s
+Time:        1.569 s
 Ran all test suites matching /test\/cjs.test.js/i.
 Removing node_modules/file-loader
    create-stamp debian/debhelper-build-stamp
@@ -2143,12 +2179,14 @@
 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/1013055/tmp/hooks/B01_cleanup starting
+I: user script /srv/workspace/pbuilder/1013055/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/3603090 and its subdirectories
-I: Current time: Thu Jul 24 05:34:23 -12 2025
-I: pbuilder-time-stamp: 1753378463
+I: removing directory /srv/workspace/pbuilder/1013055 and its subdirectories
+I: Current time: Thu Aug 27 13:58:29 +14 2026
+I: pbuilder-time-stamp: 1787788709