Diff of the two buildlogs:

--
--- b1/build.log	2023-04-11 17:38:01.062536431 +0000
+++ b2/build.log	2023-04-11 17:42:37.337290432 +0000
@@ -1,6 +1,6 @@
 I: pbuilder: network access will be disabled during build
-I: Current time: Mon May 13 11:58:42 -12 2024
-I: pbuilder-time-stamp: 1715644722
+I: Current time: Wed Apr 12 07:38:04 +14 2023
+I: pbuilder-time-stamp: 1681234684
 I: Building the build Environment
 I: extracting base tarball [/var/cache/pbuilder/bookworm-reproducible-base.tgz]
 I: copying local configuration
@@ -16,7 +16,7 @@
 I: copying [./node-immutable_4.1.0.orig.tar.xz]
 I: copying [./node-immutable_4.1.0-3.debian.tar.xz]
 I: Extracting source
-gpgv: Signature made Wed Oct 26 01:54:54 2022 -12
+gpgv: Signature made Thu Oct 27 03:54:54 2022 +14
 gpgv:                using RSA key 00DFE58B8B555779D1005EC9F6D74CA7C999EEE9
 gpgv: Can't check signature: No public key
 dpkg-source: warning: cannot verify inline signature for ./node-immutable_4.1.0-3.dsc: no acceptable signature found
@@ -30,11 +30,20 @@
 dpkg-source: info: applying fix-for-rollup-3.patch
 I: Not using root during the build.
 I: Installing the build-deps
-I: user script /srv/workspace/pbuilder/26570/tmp/hooks/D02_print_environment starting
+I: user script /srv/workspace/pbuilder/8305/tmp/hooks/D01_modify_environment starting
+debug: Running on codethink16-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
+lrwxrwxrwx 1 root root 4 Jan  6 03:20 /bin/sh -> dash
+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/8305/tmp/hooks/D01_modify_environment finished
+I: user script /srv/workspace/pbuilder/8305/tmp/hooks/D02_print_environment starting
 I: set
   BUILDDIR='/build'
-  BUILDUSERGECOS='first user,first room,first work-phone,first home-phone,first other'
-  BUILDUSERNAME='pbuilder1'
+  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=8'
@@ -44,38 +53,38 @@
   IFS=' 	
   '
   LANG='C'
-  LANGUAGE='en_US:en'
+  LANGUAGE='nl_BE:nl'
   LC_ALL='C'
   MAIL='/var/mail/root'
   OPTIND='1'
-  PATH='/usr/sbin:/usr/bin:/sbin:/bin:/usr/games'
+  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'
-  PPID='26570'
+  PPID='8305'
   PS1='# '
   PS2='> '
   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.1fJd8LsW/pbuilderrc_6pRo --distribution bookworm --hookdir /etc/pbuilder/first-build-hooks --debbuildopts -b --basetgz /var/cache/pbuilder/bookworm-reproducible-base.tgz --buildresult /srv/reproducible-results/rbuild-debian/r-b-build.1fJd8LsW/b1 --logfile b1/build.log node-immutable_4.1.0-3.dsc'
+  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.1fJd8LsW/pbuilderrc_gTzd --distribution bookworm --hookdir /etc/pbuilder/rebuild-hooks --debbuildopts -b --basetgz /var/cache/pbuilder/bookworm-reproducible-base.tgz --buildresult /srv/reproducible-results/rbuild-debian/r-b-build.1fJd8LsW/b2 --logfile b2/build.log --extrapackages usrmerge node-immutable_4.1.0-3.dsc'
   SUDO_GID='117'
   SUDO_UID='110'
   SUDO_USER='jenkins'
   TERM='unknown'
-  TZ='/usr/share/zoneinfo/Etc/GMT+12'
+  TZ='/usr/share/zoneinfo/Etc/GMT-14'
   USER='root'
   USERNAME='root'
   _='/usr/bin/systemd-run'
   http_proxy='http://192.168.101.16:3128'
 I: uname -a
-  Linux codethink13-arm64 4.15.0-208-generic #220-Ubuntu SMP Mon Mar 20 14:28:12 UTC 2023 aarch64 GNU/Linux
+  Linux i-capture-the-hostname 4.15.0-208-generic #220-Ubuntu SMP Mon Mar 20 14:28:12 UTC 2023 aarch64 GNU/Linux
 I: ls -l /bin
-  lrwxrwxrwx 1 root root 7 May 13 04:48 /bin -> usr/bin
-I: user script /srv/workspace/pbuilder/26570/tmp/hooks/D02_print_environment finished
+  lrwxrwxrwx 1 root root 7 Apr 12 00:26 /bin -> usr/bin
+I: user script /srv/workspace/pbuilder/8305/tmp/hooks/D02_print_environment finished
  -> Attempting to satisfy build-dependencies
  -> Creating pbuilder-satisfydepends-dummy package
 Package: pbuilder-satisfydepends-dummy
@@ -523,7 +532,7 @@
 Get: 388 http://deb.debian.org/debian bookworm/main arm64 node-unique-string all 2.0.0-3 [3692 B]
 Get: 389 http://deb.debian.org/debian bookworm/main arm64 rollup all 3.15.0-1 [489 kB]
 Get: 390 http://deb.debian.org/debian bookworm/main arm64 ts-jest all 29.0.3+~cs0.2.6-1 [256 kB]
-Fetched 52.7 MB in 2s (22.7 MB/s)
+Fetched 52.7 MB in 2s (23.8 MB/s)
 debconf: delaying package configuration, since apt-utils is not installed
 Selecting previously unselected package netbase.
 (Reading database ... 
(Reading database ... 5%
(Reading database ... 10%
(Reading database ... 15%
(Reading database ... 20%
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(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 ... 19616 files and directories currently installed.)
@@ -2109,8 +2118,17 @@
 Writing extended state information...
 Building tag database...
  -> Finished parsing the build-deps
+Reading package lists...
+Building dependency tree...
+Reading state information...
+usrmerge is already the newest version (35).
+0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
 I: Building the package
-I: Running cd /build/node-immutable-4.1.0/ && 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-immutable_4.1.0-3_source.changes
+I: user script /srv/workspace/pbuilder/8305/tmp/hooks/A99_set_merged_usr starting
+Re-configuring usrmerge...
+I: user script /srv/workspace/pbuilder/8305/tmp/hooks/A99_set_merged_usr finished
+hostname: Temporary failure in name resolution
+I: Running cd /build/node-immutable-4.1.0/ && 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-immutable_4.1.0-3_source.changes
 dpkg-buildpackage: info: source package node-immutable
 dpkg-buildpackage: info: source version 4.1.0-3
 dpkg-buildpackage: info: source distribution unstable
@@ -2145,7 +2163,7 @@
 src/Map.js -> src/Operations.js -> src/Map.js
 src/OrderedMap.js -> src/Map.js -> src/Operations.js -> src/OrderedMap.js
 ...and 6 more
-created dist/immutable.js in 13.4s
+created dist/immutable.js in 18.5s
 rollup -c ./resources/rollup-config-es.js
 
 /build/node-immutable-4.1.0/src/Immutable.js → dist/immutable.es.js...
@@ -2154,7 +2172,7 @@
 src/Map.js -> src/Operations.js -> src/Map.js
 src/OrderedMap.js -> src/Map.js -> src/Operations.js -> src/OrderedMap.js
 ...and 6 more
-created dist/immutable.es.js in 3.9s
+created dist/immutable.es.js in 6.7s
 cp type-definitions/immutable.* dist/
 make[1]: Leaving directory '/build/node-immutable-4.1.0'
    dh_auto_test --buildsystem=nodejs
@@ -2165,8 +2183,8 @@
 	ln -s ../. node_modules/immutable
 	/bin/sh -ex debian/tests/pkg-js/test
 + [ -e node_modules/immutable ]
-+ grep -v -f debian/tests/test_excluded
 + ls __tests__/ArraySeq.ts __tests__/Conversion.ts __tests__/Equality.ts __tests__/IndexedSeq.ts __tests__/KeyedSeq.ts __tests__/List.ts __tests__/Map.ts __tests__/ObjectSeq.ts __tests__/OrderedMap.ts __tests__/OrderedSet.ts __tests__/Predicates.ts __tests__/Range.ts __tests__/Record.ts __tests__/Repeat.ts __tests__/Seq.ts __tests__/Set.ts __tests__/Stack.ts __tests__/concat.ts __tests__/count.ts __tests__/find.ts __tests__/flatten.ts __tests__/fromJS.ts __tests__/get.ts __tests__/getIn.ts __tests__/groupBy.ts __tests__/hasIn.ts __tests__/hash.ts __tests__/interpose.ts __tests__/issues.ts __tests__/join.ts __tests__/merge.ts __tests__/minmax.ts __tests__/slice.ts __tests__/sort.ts __tests__/splice.ts __tests__/transformerProtocol.ts __tests__/updateIn.ts __tests__/zip.ts
++ grep -v -f debian/tests/test_excluded
 + jest --ci -u __tests__/ArraySeq.ts __tests__/Conversion.ts __tests__/Equality.ts __tests__/IndexedSeq.ts __tests__/KeyedSeq.ts __tests__/ObjectSeq.ts __tests__/OrderedMap.ts __tests__/OrderedSet.ts __tests__/Predicates.ts __tests__/Range.ts __tests__/Repeat.ts __tests__/Stack.ts __tests__/concat.ts __tests__/count.ts __tests__/find.ts __tests__/flatten.ts __tests__/get.ts __tests__/groupBy.ts __tests__/hash.ts __tests__/interpose.ts __tests__/issues.ts __tests__/join.ts __tests__/merge.ts __tests__/minmax.ts __tests__/slice.ts __tests__/sort.ts __tests__/splice.ts __tests__/zip.ts
 ts-jest[config] (WARN) message TS151001: If you have issues related to imports, you should consider setting `esModuleInterop` to `true` in your TypeScript configuration file (usually `tsconfig.json`). See https://blogs.msdn.microsoft.com/typescript/2018/01/31/announcing-typescript-2-7/#easier-ecmascript-module-interoperability for more information.
 ts-jest[config] (WARN) message TS151001: If you have issues related to imports, you should consider setting `esModuleInterop` to `true` in your TypeScript configuration file (usually `tsconfig.json`). See https://blogs.msdn.microsoft.com/typescript/2018/01/31/announcing-typescript-2-7/#easier-ecmascript-module-interoperability for more information.
@@ -2175,39 +2193,39 @@
 ts-jest[config] (WARN) message TS151001: If you have issues related to imports, you should consider setting `esModuleInterop` to `true` in your TypeScript configuration file (usually `tsconfig.json`). See https://blogs.msdn.microsoft.com/typescript/2018/01/31/announcing-typescript-2-7/#easier-ecmascript-module-interoperability for more information.
 ts-jest[config] (WARN) message TS151001: If you have issues related to imports, you should consider setting `esModuleInterop` to `true` in your TypeScript configuration file (usually `tsconfig.json`). See https://blogs.msdn.microsoft.com/typescript/2018/01/31/announcing-typescript-2-7/#easier-ecmascript-module-interoperability for more information.
 ts-jest[config] (WARN) message TS151001: If you have issues related to imports, you should consider setting `esModuleInterop` to `true` in your TypeScript configuration file (usually `tsconfig.json`). See https://blogs.msdn.microsoft.com/typescript/2018/01/31/announcing-typescript-2-7/#easier-ecmascript-module-interoperability for more information.
-PASS __tests__/concat.ts (20.081 s)
-PASS __tests__/Range.ts (22.341 s)
-PASS __tests__/issues.ts (22.771 s)
-PASS __tests__/merge.ts (24.376 s)
-PASS __tests__/OrderedMap.ts
-PASS __tests__/OrderedSet.ts (5.266 s)
-PASS __tests__/Conversion.ts (26.115 s)
-PASS __tests__/slice.ts (27.316 s)
-PASS __tests__/flatten.ts
-PASS __tests__/ArraySeq.ts
-PASS __tests__/count.ts
-PASS __tests__/groupBy.ts
-PASS __tests__/Stack.ts (30.85 s)
-PASS __tests__/zip.ts (6.849 s)
-PASS __tests__/sort.ts
-PASS __tests__/KeyedSeq.ts
-PASS __tests__/splice.ts
+PASS __tests__/concat.ts (75.56 s)
+PASS __tests__/Range.ts (81.378 s)
+PASS __tests__/issues.ts (81.774 s)
+PASS __tests__/merge.ts (88.547 s)
+PASS __tests__/OrderedMap.ts (7.44 s)
+PASS __tests__/Conversion.ts (89.677 s)
+PASS __tests__/OrderedSet.ts (18.648 s)
+PASS __tests__/slice.ts (95.522 s)
+PASS __tests__/flatten.ts (11.531 s)
+PASS __tests__/ArraySeq.ts (7.215 s)
+PASS __tests__/count.ts (6.129 s)
+PASS __tests__/groupBy.ts (5.733 s)
+PASS __tests__/zip.ts (21.084 s)
+PASS __tests__/sort.ts (5.213 s)
 PASS __tests__/ObjectSeq.ts
+PASS __tests__/KeyedSeq.ts (13.678 s)
+PASS __tests__/splice.ts (13.66 s)
+PASS __tests__/Stack.ts (115.154 s)
 PASS __tests__/Predicates.ts
-PASS __tests__/IndexedSeq.ts
 PASS __tests__/get.ts
-PASS __tests__/interpose.ts
-PASS __tests__/hash.ts
-PASS __tests__/Equality.ts (11.869 s)
+PASS __tests__/interpose.ts (5.195 s)
+PASS __tests__/IndexedSeq.ts (6.384 s)
+PASS __tests__/hash.ts (8.499 s)
+PASS __tests__/Equality.ts (41.198 s)
 PASS __tests__/Repeat.ts
 PASS __tests__/find.ts
-PASS __tests__/minmax.ts (11.478 s)
-PASS __tests__/join.ts (6.064 s)
+PASS __tests__/minmax.ts (36.059 s)
+PASS __tests__/join.ts (12.147 s)
 
 Test Suites: 28 passed, 28 total
 Tests:       283 passed, 283 total
 Snapshots:   0 total
-Time:        41.292 s
+Time:        138.462 s
 Ran all test suites matching /__tests__\/ArraySeq.ts|__tests__\/Conversion.ts|__tests__\/Equality.ts|__tests__\/IndexedSeq.ts|__tests__\/KeyedSeq.ts|__tests__\/ObjectSeq.ts|__tests__\/OrderedMap.ts|__tests__\/OrderedSet.ts|__tests__\/Predicates.ts|__tests__\/Range.ts|__tests__\/Repeat.ts|__tests__\/Stack.ts|__tests__\/concat.ts|__tests__\/count.ts|__tests__\/find.ts|__tests__\/flatten.ts|__tests__\/get.ts|__tests__\/groupBy.ts|__tests__\/hash.ts|__tests__\/interpose.ts|__tests__\/issues.ts|__tests__\/join.ts|__tests__\/merge.ts|__tests__\/minmax.ts|__tests__\/slice.ts|__tests__\/sort.ts|__tests__\/splice.ts|__tests__\/zip.ts/i.
 Removing node_modules/jasmine-check
 Removing node_modules/make-synchronous
@@ -2256,12 +2274,14 @@
 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/8305/tmp/hooks/B01_cleanup starting
+I: user script /srv/workspace/pbuilder/8305/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/26570 and its subdirectories
-I: Current time: Mon May 13 12:01:00 -12 2024
-I: pbuilder-time-stamp: 1715644860
+I: removing directory /srv/workspace/pbuilder/8305 and its subdirectories
+I: Current time: Wed Apr 12 07:42:35 +14 2023
+I: pbuilder-time-stamp: 1681234955