Diff of the two buildlogs:

--
--- b1/build.log	2020-03-11 14:22:08.441126314 +0000
+++ b2/build.log	2020-03-11 14:26:11.572396812 +0000
@@ -1,6 +1,6 @@
 I: pbuilder: network access will be disabled during build
-I: Current time: Tue Apr 13 08:44:49 -12 2021
-I: pbuilder-time-stamp: 1618346689
+I: Current time: Thu Mar 12 04:22:10 +14 2020
+I: pbuilder-time-stamp: 1583936530
 I: Building the build Environment
 I: extracting base tarball [/var/cache/pbuilder/buster-reproducible-base.tgz]
 I: copying local configuration
@@ -18,7 +18,7 @@
 I: Extracting source
 gpgv: unknown type of key resource 'trustedkeys.kbx'
 gpgv: keyblock resource '/root/.gnupg/trustedkeys.kbx': General error
-gpgv: Signature made Mon May 14 02:05:10 2018 -12
+gpgv: Signature made Tue May 15 04:05:10 2018 +14
 gpgv:                using RSA key 30B23C8B4E6A3B09EAA6B65212973B6E72DC07B5
 gpgv: Can't check signature: No public key
 dpkg-source: warning: failed to verify signature on ./libtest-data-perl_1.242-1.dsc
@@ -27,6 +27,18 @@
 dpkg-source: info: unpacking libtest-data-perl_1.242-1.debian.tar.xz
 I: using fakeroot in build.
 I: Installing the build-deps
+I: user script /srv/workspace/pbuilder/14055/tmp/hooks/D01_modify_environment starting
+disorder-fs debug: Running on profitbricks-build12-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
+Removing 'diversion of /bin/sh to /bin/sh.distrib by dash'
+Adding 'diversion of /bin/sh to /bin/sh.distrib by bash'
+Removing 'diversion of /usr/share/man/man1/sh.1.gz to /usr/share/man/man1/sh.distrib.1.gz by dash'
+Adding 'diversion of /usr/share/man/man1/sh.1.gz to /usr/share/man/man1/sh.distrib.1.gz by 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/14055/tmp/hooks/D01_modify_environment finished
  -> Attempting to satisfy build-dependencies
  -> Creating pbuilder-satisfydepends-dummy package
 Package: pbuilder-satisfydepends-dummy
@@ -103,7 +115,7 @@
 Get: 35 http://deb.debian.org/debian buster/main i386 libpod-coverage-perl all 0.23-1 [23.9 kB]
 Get: 36 http://deb.debian.org/debian buster/main i386 libtest-pod-coverage-perl all 1.10-2 [14.5 kB]
 Get: 37 http://deb.debian.org/debian buster/main i386 libtest-pod-perl all 1.52-1 [14.2 kB]
-Fetched 19.4 MB in 0s (57.7 MB/s)
+Fetched 19.4 MB in 6s (3080 kB/s)
 debconf: delaying package configuration, since apt-utils is not installed
 Selecting previously unselected package libbsd0:i386.
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(Reading database ... 19231 files and directories currently installed.)
@@ -274,7 +286,7 @@
 fakeroot is already the newest version (1.23-1).
 0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
 I: Building the package
-I: Running cd /build/libtest-data-perl-1.242/ && env PATH="/usr/sbin:/usr/bin:/sbin:/bin:/usr/games" HOME="/nonexistent/first-build" dpkg-buildpackage -us -uc -b
+I: Running cd /build/libtest-data-perl-1.242/ && env PATH="/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/i/capture/the/path" HOME="/nonexistent/second-build" dpkg-buildpackage -us -uc -b
 dpkg-buildpackage: info: source package libtest-data-perl
 dpkg-buildpackage: info: source version 1.242-1
 dpkg-buildpackage: info: source distribution unstable
@@ -298,11 +310,11 @@
    dh_auto_build
 	make -j1
 make[1]: Entering directory '/build/libtest-data-perl-1.242'
+cp lib/Test/Data/Function.pm blib/lib/Test/Data/Function.pm
 cp lib/Test/Data/Scalar.pm blib/lib/Test/Data/Scalar.pm
+cp lib/Test/Data/Hash.pm blib/lib/Test/Data/Hash.pm
 cp lib/Test/Data/Array.pm blib/lib/Test/Data/Array.pm
 cp lib/Test/Data.pm blib/lib/Test/Data.pm
-cp lib/Test/Data/Function.pm blib/lib/Test/Data/Function.pm
-cp lib/Test/Data/Hash.pm blib/lib/Test/Data/Hash.pm
 Manifying 5 pod documents
 make[1]: Leaving directory '/build/libtest-data-perl-1.242'
    dh_auto_test
@@ -384,10 +396,10 @@
 t/pod.t ........... 
 1..5
 ok 1 - POD test for blib/lib/Test/Data.pm
-ok 2 - POD test for blib/lib/Test/Data/Hash.pm
-ok 3 - POD test for blib/lib/Test/Data/Function.pm
-ok 4 - POD test for blib/lib/Test/Data/Scalar.pm
-ok 5 - POD test for blib/lib/Test/Data/Array.pm
+ok 2 - POD test for blib/lib/Test/Data/Scalar.pm
+ok 3 - POD test for blib/lib/Test/Data/Array.pm
+ok 4 - POD test for blib/lib/Test/Data/Hash.pm
+ok 5 - POD test for blib/lib/Test/Data/Function.pm
 ok
 t/pod_coverage.t .. 
 1..5
@@ -459,7 +471,7 @@
 ok 58 - untainted_ok
 ok
 All tests successful.
-Files=8, Tests=124,  0 wallclock secs ( 0.04 usr  0.00 sys +  0.48 cusr  0.04 csys =  0.56 CPU)
+Files=8, Tests=124,  1 wallclock secs ( 0.07 usr  0.03 sys +  1.05 cusr  0.10 csys =  1.25 CPU)
 Result: PASS
 make[1]: Leaving directory '/build/libtest-data-perl-1.242'
  fakeroot debian/rules binary
@@ -471,15 +483,15 @@
 make[1]: Entering directory '/build/libtest-data-perl-1.242'
 Manifying 5 pod documents
 Installing /build/libtest-data-perl-1.242/debian/libtest-data-perl/usr/share/perl5/Test/Data.pm
-Installing /build/libtest-data-perl-1.242/debian/libtest-data-perl/usr/share/perl5/Test/Data/Hash.pm
-Installing /build/libtest-data-perl-1.242/debian/libtest-data-perl/usr/share/perl5/Test/Data/Function.pm
 Installing /build/libtest-data-perl-1.242/debian/libtest-data-perl/usr/share/perl5/Test/Data/Scalar.pm
 Installing /build/libtest-data-perl-1.242/debian/libtest-data-perl/usr/share/perl5/Test/Data/Array.pm
+Installing /build/libtest-data-perl-1.242/debian/libtest-data-perl/usr/share/perl5/Test/Data/Hash.pm
+Installing /build/libtest-data-perl-1.242/debian/libtest-data-perl/usr/share/perl5/Test/Data/Function.pm
+Installing /build/libtest-data-perl-1.242/debian/libtest-data-perl/usr/share/man/man3/Test::Data::Scalar.3pm
 Installing /build/libtest-data-perl-1.242/debian/libtest-data-perl/usr/share/man/man3/Test::Data.3pm
-Installing /build/libtest-data-perl-1.242/debian/libtest-data-perl/usr/share/man/man3/Test::Data::Array.3pm
 Installing /build/libtest-data-perl-1.242/debian/libtest-data-perl/usr/share/man/man3/Test::Data::Hash.3pm
-Installing /build/libtest-data-perl-1.242/debian/libtest-data-perl/usr/share/man/man3/Test::Data::Scalar.3pm
 Installing /build/libtest-data-perl-1.242/debian/libtest-data-perl/usr/share/man/man3/Test::Data::Function.3pm
+Installing /build/libtest-data-perl-1.242/debian/libtest-data-perl/usr/share/man/man3/Test::Data::Array.3pm
 make[1]: Leaving directory '/build/libtest-data-perl-1.242'
    dh_installdocs
    dh_installchangelogs
@@ -501,12 +513,14 @@
  dpkg-source --after-build .
 dpkg-buildpackage: info: binary-only upload (no source included)
 I: copying local configuration
+I: user script /srv/workspace/pbuilder/14055/tmp/hooks/B01_cleanup starting
+I: user script /srv/workspace/pbuilder/14055/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/16601 and its subdirectories
-I: Current time: Tue Apr 13 08:45:06 -12 2021
-I: pbuilder-time-stamp: 1618346706
+I: removing directory /srv/workspace/pbuilder/14055 and its subdirectories
+I: Current time: Thu Mar 12 04:26:11 +14 2020
+I: pbuilder-time-stamp: 1583936771