Diff of the two buildlogs:

--
--- b1/build.log	2024-05-09 19:09:23.126678002 +0000
+++ b2/build.log	2024-05-09 19:10:40.299394018 +0000
@@ -1,7 +1,6 @@
-W: cgroups are not available on the host, not using them.
 I: pbuilder: network access will be disabled during build
-I: Current time: Wed Jun 11 13:31:13 -12 2025
-I: pbuilder-time-stamp: 1749691873
+I: Current time: Thu Jun 12 15:32:26 +14 2025
+I: pbuilder-time-stamp: 1749691946
 I: Building the build Environment
 I: extracting base tarball [/var/cache/pbuilder/unstable-reproducible-base.tgz]
 I: copying local configuration
@@ -32,51 +31,84 @@
 dpkg-source: info: applying fix-for-mime-2.patch
 I: Not using root during the build.
 I: Installing the build-deps
-I: user script /srv/workspace/pbuilder/3369832/tmp/hooks/D02_print_environment starting
+I: user script /srv/workspace/pbuilder/2263536/tmp/hooks/D01_modify_environment starting
+debug: Running on codethink01-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 Jun 12 01:32 /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/2263536/tmp/hooks/D01_modify_environment finished
+I: user script /srv/workspace/pbuilder/2263536/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]="21" [3]="1" [4]="release" [5]="aarch64-unknown-linux-gnu")
+  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=arm64
+  DEBIAN_FRONTEND=noninteractive
   DEB_BUILD_OPTIONS='buildinfo=+all reproducible=+all parallel=12 '
-  DISTRIBUTION='unstable'
-  HOME='/root'
-  HOST_ARCH='arm64'
+  DIRSTACK=()
+  DISTRIBUTION=unstable
+  EUID=0
+  FUNCNAME=([0]="Echo" [1]="main")
+  GROUPS=()
+  HOME=/root
+  HOSTNAME=i-capture-the-hostname
+  HOSTTYPE=aarch64
+  HOST_ARCH=arm64
   IFS=' 	
   '
-  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='3369832'
-  PS1='# '
-  PS2='> '
+  INVOCATION_ID=7984f58496b0435e858b7cf3f8794792
+  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=2263536
   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.UjcUyIL9/pbuilderrc_0sDC --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.UjcUyIL9/b1 --logfile b1/build.log less.js_3.13.0+dfsg-11.dsc'
-  SUDO_GID='109'
-  SUDO_UID='104'
-  SUDO_USER='jenkins'
-  TERM='unknown'
-  TZ='/usr/share/zoneinfo/Etc/GMT+12'
-  USER='root'
-  _='/usr/sbin/chroot'
-  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.UjcUyIL9/pbuilderrc_vw5h --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.UjcUyIL9/b2 --logfile b2/build.log less.js_3.13.0+dfsg-11.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 codethink03-arm64 6.1.0-21-cloud-arm64 #1 SMP Debian 6.1.90-1 (2024-05-03) aarch64 GNU/Linux
+  Linux i-capture-the-hostname 6.1.0-21-cloud-arm64 #1 SMP Debian 6.1.90-1 (2024-05-03) aarch64 GNU/Linux
 I: ls -l /bin
   lrwxrwxrwx 1 root root 7 Jun 11 14:05 /bin -> usr/bin
-I: user script /srv/workspace/pbuilder/3369832/tmp/hooks/D02_print_environment finished
+I: user script /srv/workspace/pbuilder/2263536/tmp/hooks/D02_print_environment finished
  -> Attempting to satisfy build-dependencies
  -> Creating pbuilder-satisfydepends-dummy package
 Package: pbuilder-satisfydepends-dummy
@@ -435,7 +467,7 @@
 Get: 279 http://deb.debian.org/debian unstable/main arm64 node-terser all 5.19.2-1 [208 kB]
 Get: 280 http://deb.debian.org/debian unstable/main arm64 rollup all 3.29.4-3 [504 kB]
 Get: 281 http://deb.debian.org/debian unstable/main arm64 terser all 5.19.2-1 [17.5 kB]
-Fetched 47.3 MB in 0s (119 MB/s)
+Fetched 47.3 MB in 0s (149 MB/s)
 debconf: delaying package configuration, since apt-utils is not installed
 Selecting previously unselected package liblocale-gettext-perl.
 (Reading database ... 
(Reading database ... 5%
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(Reading database ... 55%
(Reading database ... 60%
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(Reading database ... 80%
(Reading database ... 85%
(Reading database ... 90%
(Reading database ... 95%
(Reading database ... 100%
(Reading database ... 19744 files and directories currently installed.)
@@ -1586,7 +1618,11 @@
 Building tag database...
  -> Finished parsing the build-deps
 I: Building the package
-I: Running cd /build/reproducible-path/less.js-3.13.0+dfsg/ && 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  > ../less.js_3.13.0+dfsg-11_source.changes
+I: user script /srv/workspace/pbuilder/2263536/tmp/hooks/A99_set_merged_usr starting
+Not re-configuring usrmerge for unstable
+I: user script /srv/workspace/pbuilder/2263536/tmp/hooks/A99_set_merged_usr finished
+hostname: Name or service not known
+I: Running cd /build/reproducible-path/less.js-3.13.0+dfsg/ && 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  > ../less.js_3.13.0+dfsg-11_source.changes
 dpkg-buildpackage: info: source package less.js
 dpkg-buildpackage: info: source version 3.13.0+dfsg-11
 dpkg-buildpackage: info: source distribution unstable
@@ -1678,8 +1714,8 @@
 	install -m 644 packages/less/package.json /build/reproducible-path/less.js-3.13.0\+dfsg/debian/tmp//usr/share/nodejs/less//
 	install -m 644 packages/less/index.js /build/reproducible-path/less.js-3.13.0\+dfsg/debian/tmp//usr/share/nodejs/less//
 	mkdir -p /build/reproducible-path/less.js-3.13.0\+dfsg/debian/tmp//usr/share/nodejs/less/dist
-	install -m 644 packages/less/dist/less.min.js /build/reproducible-path/less.js-3.13.0\+dfsg/debian/tmp//usr/share/nodejs/less/dist/
 	install -m 644 packages/less/dist/less.min.js.map /build/reproducible-path/less.js-3.13.0\+dfsg/debian/tmp//usr/share/nodejs/less/dist/
+	install -m 644 packages/less/dist/less.min.js /build/reproducible-path/less.js-3.13.0\+dfsg/debian/tmp//usr/share/nodejs/less/dist/
 	install -m 644 packages/less/dist/less.js /build/reproducible-path/less.js-3.13.0\+dfsg/debian/tmp//usr/share/nodejs/less/dist/
 	mkdir -p /build/reproducible-path/less.js-3.13.0\+dfsg/debian/tmp//usr/share/nodejs/less/lib/less-node
 	install -m 644 packages/less/lib/less-node/index.js /build/reproducible-path/less.js-3.13.0\+dfsg/debian/tmp//usr/share/nodejs/less/lib/less-node/
@@ -2519,17 +2555,17 @@
  + node-image-size (= 0.5.5)
  + node-less-test-data (= 3.13.0)
  + node-less-test-import-module (= 3.12.0)
+Add node-semver (= 7.6.1+~7.5.8-1) in ${nodejs:BuiltUsing}
 Add node-glob (= 8.1.0+~cs8.5.15-1) in ${nodejs:BuiltUsing}
-Add node-resolve (= 1.22.8+~cs5.34.15-2) in ${nodejs:BuiltUsing}
-Add rollup (= 3.29.4-3) in ${nodejs:BuiltUsing}
 Add node-fs-extra (= 10.1.0+~9.0.13-1) in ${nodejs:BuiltUsing}
-Add node-tslib (= 2.4.1-1) in ${nodejs:BuiltUsing}
-Add node-semver (= 7.6.1+~7.5.8-1) in ${nodejs:BuiltUsing}
-Add node-minimist (= 1.2.8+~cs5.3.5-1) in ${nodejs:BuiltUsing}
-Add node-grunt-cli (= 1.4.3+~3.0.1-1) in ${nodejs:BuiltUsing}
 Add node-typescript (= 4.8.4+ds1-2) in ${nodejs:BuiltUsing}
-Add node-globby (= 13.1.3+~cs16.25.40-2) in ${nodejs:BuiltUsing}
+Add node-minimist (= 1.2.8+~cs5.3.5-1) in ${nodejs:BuiltUsing}
+Add node-tslib (= 2.4.1-1) in ${nodejs:BuiltUsing}
+Add node-resolve (= 1.22.8+~cs5.34.15-2) in ${nodejs:BuiltUsing}
+Add rollup (= 3.29.4-3) in ${nodejs:BuiltUsing}
 Add grunt (= 1.6.1-1) in ${nodejs:BuiltUsing}
+Add node-globby (= 13.1.3+~cs16.25.40-2) in ${nodejs:BuiltUsing}
+Add node-grunt-cli (= 1.4.3+~3.0.1-1) in ${nodejs:BuiltUsing}
 Set ${nodejs:Version} to 18.20.1+dfsg
    dh_install
    dh_installdocs
@@ -2569,12 +2605,14 @@
 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/2263536/tmp/hooks/B01_cleanup starting
+I: user script /srv/workspace/pbuilder/2263536/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/3369832 and its subdirectories
-I: Current time: Wed Jun 11 13:32:21 -12 2025
-I: pbuilder-time-stamp: 1749691941
+I: removing directory /srv/workspace/pbuilder/2263536 and its subdirectories
+I: Current time: Thu Jun 12 15:33:39 +14 2025
+I: pbuilder-time-stamp: 1749692019