Diff of the two buildlogs:

--
--- b1/build.log	2020-05-10 11:59:29.689307392 +0000
+++ b2/build.log	2020-05-10 12:10:04.192808523 +0000
@@ -1,6 +1,6 @@
 I: pbuilder: network access will be disabled during build
-I: Current time: Sat Jun 12 06:21:54 -12 2021
-I: pbuilder-time-stamp: 1623522114
+I: Current time: Mon May 11 01:59:31 +14 2020
+I: pbuilder-time-stamp: 1589111971
 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 Sat Mar 17 13:26:03 2018 -12
+gpgv: Signature made Sun Mar 18 15:26:03 2018 +14
 gpgv:                using RSA key 91BFBF4D6956BD5DF7B72D23DFE691AE331BA3DB
 gpgv:                issuer "jamessan@debian.org"
 gpgv: Can't check signature: No public key
@@ -28,6 +28,18 @@
 dpkg-source: info: unpacking pangoterm_0~bzr607-2.debian.tar.xz
 I: Not using root during the build.
 I: Installing the build-deps
+I: user script /srv/workspace/pbuilder/19544/tmp/hooks/D01_modify_environment starting
+debug: Running on profitbricks-build2-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/19544/tmp/hooks/D01_modify_environment finished
  -> Attempting to satisfy build-dependencies
  -> Creating pbuilder-satisfydepends-dummy package
 Package: pbuilder-satisfydepends-dummy
@@ -265,7 +277,7 @@
 Get: 192 http://deb.debian.org/debian buster/main i386 libtool-bin i386 2.4.6-9 [431 kB]
 Get: 193 http://deb.debian.org/debian buster/main i386 libvterm0 i386 0~bzr718-1 [30.5 kB]
 Get: 194 http://deb.debian.org/debian buster/main i386 libvterm-dev i386 0~bzr718-1 [36.1 kB]
-Fetched 86.2 MB in 1s (65.6 MB/s)
+Fetched 86.2 MB in 23s (3775 kB/s)
 debconf: delaying package configuration, since apt-utils is not installed
 Selecting previously unselected package libbsd0:i386.
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(Reading database ... 19234 files and directories currently installed.)
@@ -1070,7 +1082,7 @@
 Building tag database...
  -> Finished parsing the build-deps
 I: Building the package
-I: Running cd /build/pangoterm-0~bzr607/ && env PATH="/usr/sbin:/usr/bin:/sbin:/bin:/usr/games" HOME="/nonexistent/first-build" dpkg-buildpackage -us -uc -b
+I: Running cd /build/pangoterm-0~bzr607/ && 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 pangoterm
 dpkg-buildpackage: info: source version 0~bzr607-2
 dpkg-buildpackage: info: source distribution unstable
@@ -1080,7 +1092,7 @@
  debian/rules clean
 dh clean
    dh_auto_clean
-	make -j18 clean
+	make -j10 clean
 make[1]: Entering directory '/build/pangoterm-0~bzr607'
 libtool --quiet --mode=clean rm -f conf.lo pangoterm.lo main.lo
 libtool --quiet --mode=clean rm -f pangoterm
@@ -1156,12 +1168,14 @@
  dpkg-source --after-build .
 dpkg-buildpackage: info: binary-only upload (no source included)
 I: copying local configuration
+I: user script /srv/workspace/pbuilder/19544/tmp/hooks/B01_cleanup starting
+I: user script /srv/workspace/pbuilder/19544/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/21118 and its subdirectories
-I: Current time: Sat Jun 12 06:22:29 -12 2021
-I: pbuilder-time-stamp: 1623522149
+I: removing directory /srv/workspace/pbuilder/19544 and its subdirectories
+I: Current time: Mon May 11 02:10:03 +14 2020
+I: pbuilder-time-stamp: 1589112603