Diff of the two buildlogs:

--
--- b1/build.log	2025-01-01 10:41:21.477534269 +0000
+++ b2/build.log	2025-01-01 10:42:53.773303381 +0000
@@ -1,6 +1,6 @@
 I: pbuilder: network access will be disabled during build
-I: Current time: Tue Dec 31 22:39:44 -12 2024
-I: pbuilder-time-stamp: 1735727984
+I: Current time: Thu Jan  2 00:41:24 +14 2025
+I: pbuilder-time-stamp: 1735728084
 I: Building the build Environment
 I: extracting base tarball [/var/cache/pbuilder/trixie-reproducible-base.tgz]
 I: copying local configuration
@@ -29,52 +29,84 @@
 dpkg-source: info: unpacking node-registry-auth-token_5.0.1+~cs2.0.5-1.debian.tar.xz
 I: Not using root during the build.
 I: Installing the build-deps
-I: user script /srv/workspace/pbuilder/534788/tmp/hooks/D02_print_environment starting
+I: user script /srv/workspace/pbuilder/2944476/tmp/hooks/D01_modify_environment starting
+debug: Running on codethink02-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 Jan  1 10:41 /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/2944476/tmp/hooks/D01_modify_environment finished
+I: user script /srv/workspace/pbuilder/2944476/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='0f4480b86c904bf4bf425933782770f0'
-  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='534788'
-  PS1='# '
-  PS2='> '
+  INVOCATION_ID=a283c268418b4086ab608066a9caade5
+  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=2944476
   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.iM54xDtn/pbuilderrc_aR9g --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.iM54xDtn/b1 --logfile b1/build.log node-registry-auth-token_5.0.1+~cs2.0.5-1.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.iM54xDtn/pbuilderrc_k4fz --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.iM54xDtn/b2 --logfile b2/build.log node-registry-auth-token_5.0.1+~cs2.0.5-1.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 6.1.0-28-cloud-arm64 #1 SMP Debian 6.1.119-1 (2024-11-22) aarch64 GNU/Linux
+  Linux i-capture-the-hostname 6.1.0-28-cloud-arm64 #1 SMP Debian 6.1.119-1 (2024-11-22) aarch64 GNU/Linux
 I: ls -l /bin
   lrwxrwxrwx 1 root root 7 Nov 22 14:40 /bin -> usr/bin
-I: user script /srv/workspace/pbuilder/534788/tmp/hooks/D02_print_environment finished
+I: user script /srv/workspace/pbuilder/2944476/tmp/hooks/D02_print_environment finished
  -> Attempting to satisfy build-dependencies
  -> Creating pbuilder-satisfydepends-dummy package
 Package: pbuilder-satisfydepends-dummy
@@ -325,7 +357,7 @@
 Get: 199 http://deb.debian.org/debian trixie/main arm64 node-minimist all 1.2.8+~cs5.3.5-1 [15.9 kB]
 Get: 200 http://deb.debian.org/debian trixie/main arm64 node-rc all 1.2.8-2 [8656 B]
 Get: 201 http://deb.debian.org/debian trixie/main arm64 node-resolve-from all 5.0.0+~3.1.0+~3.3.0+~2.0.0-1 [7292 B]
-Fetched 42.1 MB in 1s (75.0 MB/s)
+Fetched 42.1 MB in 0s (115 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 ... 20081 files and directories currently installed.)
@@ -1153,7 +1185,11 @@
 Building tag database...
  -> Finished parsing the build-deps
 I: Building the package
-I: Running cd /build/reproducible-path/node-registry-auth-token-5.0.1+~cs2.0.5/ && 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-registry-auth-token_5.0.1+~cs2.0.5-1_source.changes
+I: user script /srv/workspace/pbuilder/2944476/tmp/hooks/A99_set_merged_usr starting
+Not re-configuring usrmerge for trixie
+I: user script /srv/workspace/pbuilder/2944476/tmp/hooks/A99_set_merged_usr finished
+hostname: Name or service not known
+I: Running cd /build/reproducible-path/node-registry-auth-token-5.0.1+~cs2.0.5/ && 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-registry-auth-token_5.0.1+~cs2.0.5-1_source.changes
 dpkg-buildpackage: info: source package node-registry-auth-token
 dpkg-buildpackage: info: source version 5.0.1+~cs2.0.5-1
 dpkg-buildpackage: info: source distribution unstable
@@ -1193,7 +1229,7 @@
 
 
   auth-token
-    undefined should read global if no local is found (69ms)
+    undefined should read global if no local is found
     undefined should return undefined if no auth token is given for registry
     legacy auth token
       undefined should return auth token if it is defined in the legacy way via the `_auth` key
@@ -1202,12 +1238,12 @@
     bearer token
       undefined should return auth token if registry is defined
       undefined should use npmrc passed in
-      undefined should return auth token if registry url has port specified (43ms)
+      undefined should return auth token if registry url has port specified
       undefined should return auth token defined by reference to an environment variable (with curly braces)
       undefined should return auth token defined by reference to an environment variable (without curly braces)
       undefined should try with and without a slash at the end of registry url
       undefined should fetch for the registry given (if defined)
-      undefined recursively finds registries for deep url if option is set (45ms)
+      undefined recursively finds registries for deep url if option is set
       undefined should try both with and without trailing slash
       undefined should prefer bearer token over basic token
       undefined "nerf darts" registry urls
@@ -1232,7 +1268,7 @@
     undefined should return configured global registry if given
 
 
-  31 passing (1s)
+  31 passing (691ms)
 
 Removing node_modules/caller-path
 Removing node_modules/require-uncached
@@ -1329,12 +1365,14 @@
 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/2944476/tmp/hooks/B01_cleanup starting
+I: user script /srv/workspace/pbuilder/2944476/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/534788 and its subdirectories
-I: Current time: Tue Dec 31 22:41:20 -12 2024
-I: pbuilder-time-stamp: 1735728080
+I: removing directory /srv/workspace/pbuilder/2944476 and its subdirectories
+I: Current time: Thu Jan  2 00:42:52 +14 2025
+I: pbuilder-time-stamp: 1735728172