Diff of the two buildlogs:

--
--- b1/build.log	2020-03-14 18:45:27.063940095 +0000
+++ b2/build.log	2020-03-14 18:46:37.002529484 +0000
@@ -1,6 +1,6 @@
 I: pbuilder: network access will be disabled during build
-I: Current time: Sat Mar 14 06:31:27 -12 2020
-I: pbuilder-time-stamp: 1584210687
+I: Current time: Sat Apr 17 15:08:27 +14 2021
+I: pbuilder-time-stamp: 1618621707
 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 Fri Oct 19 23:21:11 2018 -12
+gpgv: Signature made Sun Oct 21 01:21:11 2018 +14
 gpgv:                using RSA key 27D73CA5F5B5D7E01A5136F5D7A86780CC64403C
 gpgv:                issuer "iliastsi@debian.org"
 gpgv: Can't check signature: No public key
@@ -30,6 +30,18 @@
 dpkg-source: info: applying newer-deps
 I: Not using root during the build.
 I: Installing the build-deps
+I: user script /srv/workspace/pbuilder/24224/tmp/hooks/D01_modify_environment starting
+disorder-fs debug: Running on profitbricks-build16-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/24224/tmp/hooks/D01_modify_environment finished
  -> Attempting to satisfy build-dependencies
  -> Creating pbuilder-satisfydepends-dummy package
 Package: pbuilder-satisfydepends-dummy
@@ -202,7 +214,7 @@
 Get: 89 http://deb.debian.org/debian buster/main i386 libghc-random-dev i386 1.1-7+b2 [133 kB]
 Get: 90 http://deb.debian.org/debian buster/main i386 libghc-tf-random-dev i386 0.5-9+b2 [95.2 kB]
 Get: 91 http://deb.debian.org/debian buster/main i386 libghc-quickcheck2-dev i386 2.11.3-1+b2 [597 kB]
-Fetched 162 MB in 51s (3176 kB/s)
+Fetched 162 MB in 2s (83.8 MB/s)
 debconf: delaying package configuration, since apt-utils is not installed
 Selecting previously unselected package libbsd0:i386.
 (Reading database ... 
(Reading database ... 5%
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(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 ... 19231 files and directories currently installed.)
@@ -586,7 +598,7 @@
 Building tag database...
  -> Finished parsing the build-deps
 I: Building the package
-I: Running cd /build/haskell-cgi-3001.3.0.2/ && env PATH="/usr/sbin:/usr/bin:/sbin:/bin:/usr/games" HOME="/nonexistent/first-build" dpkg-buildpackage -us -uc -b
+I: Running cd /build/haskell-cgi-3001.3.0.2/ && 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 haskell-cgi
 dpkg-buildpackage: info: source version 3001.3.0.2-7
 dpkg-buildpackage: info: source distribution unstable
@@ -757,7 +769,7 @@
 creating dist-ghc/doc
 creating dist-ghc/doc/html
 creating dist-ghc/doc/html/cgi
-/usr/bin/haddock '@dist-ghc/doc/html/cgi/haddock-response27036-5.txt' '--mathjax=file:///usr/share/javascript/mathjax/MathJax.js'
+/usr/bin/haddock '@dist-ghc/doc/html/cgi/haddock-response26333-5.txt' '--mathjax=file:///usr/share/javascript/mathjax/MathJax.js'
 Warning: --source-* options are ignored when --hyperlinked-source is enabled.
 
 Network/CGI.hs:1:14: warning:
@@ -1085,24 +1097,24 @@
 dh_shlibdeps -plibghc-cgi-dev -- --ignore-missing-info
 dpkg-shlibdeps: warning: debian/libghc-cgi-dev/usr/lib/haskell-packages/ghc/lib/i386-linux-ghc-8.4.4/libHScgi-3001.3.0.2-CFZtGP1frJvAgiFfMNvlOG-ghc8.4.4.so contains an unresolvable reference to symbol stg_ap_pp_info: it's probably a plugin
 dpkg-shlibdeps: warning: 33 other similar warnings have been skipped (use -v to see them all)
-dpkg-shlibdeps: warning: package could avoid a useless dependency if debian/libghc-cgi-dev/usr/lib/haskell-packages/ghc/lib/i386-linux-ghc-8.4.4/libHScgi-3001.3.0.2-CFZtGP1frJvAgiFfMNvlOG-ghc8.4.4.so was not linked against libutil.so.1 (it uses none of the library's symbols)
+dpkg-shlibdeps: warning: package could avoid a useless dependency if debian/libghc-cgi-dev/usr/lib/haskell-packages/ghc/lib/i386-linux-ghc-8.4.4/libHScgi-3001.3.0.2-CFZtGP1frJvAgiFfMNvlOG-ghc8.4.4.so was not linked against libHSstringsearch-0.3.6.6-6DZU68MAKlcJFBtzhQCsgS-ghc8.4.4.so (it uses none of the library's symbols)
+dpkg-shlibdeps: warning: package could avoid a useless dependency if debian/libghc-cgi-dev/usr/lib/haskell-packages/ghc/lib/i386-linux-ghc-8.4.4/libHScgi-3001.3.0.2-CFZtGP1frJvAgiFfMNvlOG-ghc8.4.4.so was not linked against libHSbinary-0.8.5.1-ghc8.4.4.so (it uses none of the library's symbols)
+dpkg-shlibdeps: warning: package could avoid a useless dependency if debian/libghc-cgi-dev/usr/lib/haskell-packages/ghc/lib/i386-linux-ghc-8.4.4/libHScgi-3001.3.0.2-CFZtGP1frJvAgiFfMNvlOG-ghc8.4.4.so was not linked against libHStext-1.2.3.1-ghc8.4.4.so (it uses none of the library's symbols)
+dpkg-shlibdeps: warning: package could avoid a useless dependency if debian/libghc-cgi-dev/usr/lib/haskell-packages/ghc/lib/i386-linux-ghc-8.4.4/libHScgi-3001.3.0.2-CFZtGP1frJvAgiFfMNvlOG-ghc8.4.4.so was not linked against libpthread.so.0 (it uses none of the library's symbols)
+dpkg-shlibdeps: warning: package could avoid a useless dependency if debian/libghc-cgi-dev/usr/lib/haskell-packages/ghc/lib/i386-linux-ghc-8.4.4/libHScgi-3001.3.0.2-CFZtGP1frJvAgiFfMNvlOG-ghc8.4.4.so was not linked against libatomic.so.1 (it uses none of the library's symbols)
 dpkg-shlibdeps: warning: package could avoid a useless dependency if debian/libghc-cgi-dev/usr/lib/haskell-packages/ghc/lib/i386-linux-ghc-8.4.4/libHScgi-3001.3.0.2-CFZtGP1frJvAgiFfMNvlOG-ghc8.4.4.so was not linked against libgmp.so.10 (it uses none of the library's symbols)
-dpkg-shlibdeps: warning: package could avoid a useless dependency if debian/libghc-cgi-dev/usr/lib/haskell-packages/ghc/lib/i386-linux-ghc-8.4.4/libHScgi-3001.3.0.2-CFZtGP1frJvAgiFfMNvlOG-ghc8.4.4.so was not linked against libHSunix-2.7.2.2-ghc8.4.4.so (it uses none of the library's symbols)
 dpkg-shlibdeps: warning: package could avoid a useless dependency if debian/libghc-cgi-dev/usr/lib/haskell-packages/ghc/lib/i386-linux-ghc-8.4.4/libHScgi-3001.3.0.2-CFZtGP1frJvAgiFfMNvlOG-ghc8.4.4.so was not linked against libHStransformers-compat-0.6.2-5CDXrHTzJlL1O0USvaKGOQ-ghc8.4.4.so (it uses none of the library's symbols)
-dpkg-shlibdeps: warning: package could avoid a useless dependency if debian/libghc-cgi-dev/usr/lib/haskell-packages/ghc/lib/i386-linux-ghc-8.4.4/libHScgi-3001.3.0.2-CFZtGP1frJvAgiFfMNvlOG-ghc8.4.4.so was not linked against libpthread.so.0 (it uses none of the library's symbols)
-dpkg-shlibdeps: warning: package could avoid a useless dependency if debian/libghc-cgi-dev/usr/lib/haskell-packages/ghc/lib/i386-linux-ghc-8.4.4/libHScgi-3001.3.0.2-CFZtGP1frJvAgiFfMNvlOG-ghc8.4.4.so was not linked against libHSghc-boot-th-8.4.4-ghc8.4.4.so (it uses none of the library's symbols)
-dpkg-shlibdeps: warning: package could avoid a useless dependency if debian/libghc-cgi-dev/usr/lib/haskell-packages/ghc/lib/i386-linux-ghc-8.4.4/libHScgi-3001.3.0.2-CFZtGP1frJvAgiFfMNvlOG-ghc8.4.4.so was not linked against librt.so.1 (it uses none of the library's symbols)
 dpkg-shlibdeps: warning: package could avoid a useless dependency if debian/libghc-cgi-dev/usr/lib/haskell-packages/ghc/lib/i386-linux-ghc-8.4.4/libHScgi-3001.3.0.2-CFZtGP1frJvAgiFfMNvlOG-ghc8.4.4.so was not linked against libm.so.6 (it uses none of the library's symbols)
-dpkg-shlibdeps: warning: package could avoid a useless dependency if debian/libghc-cgi-dev/usr/lib/haskell-packages/ghc/lib/i386-linux-ghc-8.4.4/libHScgi-3001.3.0.2-CFZtGP1frJvAgiFfMNvlOG-ghc8.4.4.so was not linked against libHSarray-0.5.2.0-ghc8.4.4.so (it uses none of the library's symbols)
-dpkg-shlibdeps: warning: package could avoid a useless dependency if debian/libghc-cgi-dev/usr/lib/haskell-packages/ghc/lib/i386-linux-ghc-8.4.4/libHScgi-3001.3.0.2-CFZtGP1frJvAgiFfMNvlOG-ghc8.4.4.so was not linked against libHSpretty-1.1.3.6-ghc8.4.4.so (it uses none of the library's symbols)
-dpkg-shlibdeps: warning: package could avoid a useless dependency if debian/libghc-cgi-dev/usr/lib/haskell-packages/ghc/lib/i386-linux-ghc-8.4.4/libHScgi-3001.3.0.2-CFZtGP1frJvAgiFfMNvlOG-ghc8.4.4.so was not linked against libHStemplate-haskell-2.13.0.0-ghc8.4.4.so (it uses none of the library's symbols)
-dpkg-shlibdeps: warning: package could avoid a useless dependency if debian/libghc-cgi-dev/usr/lib/haskell-packages/ghc/lib/i386-linux-ghc-8.4.4/libHScgi-3001.3.0.2-CFZtGP1frJvAgiFfMNvlOG-ghc8.4.4.so was not linked against libHSbinary-0.8.5.1-ghc8.4.4.so (it uses none of the library's symbols)
 dpkg-shlibdeps: warning: package could avoid a useless dependency if debian/libghc-cgi-dev/usr/lib/haskell-packages/ghc/lib/i386-linux-ghc-8.4.4/libHScgi-3001.3.0.2-CFZtGP1frJvAgiFfMNvlOG-ghc8.4.4.so was not linked against libHSdeepseq-1.4.3.0-ghc8.4.4.so (it uses none of the library's symbols)
-dpkg-shlibdeps: warning: package could avoid a useless dependency if debian/libghc-cgi-dev/usr/lib/haskell-packages/ghc/lib/i386-linux-ghc-8.4.4/libHScgi-3001.3.0.2-CFZtGP1frJvAgiFfMNvlOG-ghc8.4.4.so was not linked against libHSstringsearch-0.3.6.6-6DZU68MAKlcJFBtzhQCsgS-ghc8.4.4.so (it uses none of the library's symbols)
-dpkg-shlibdeps: warning: package could avoid a useless dependency if debian/libghc-cgi-dev/usr/lib/haskell-packages/ghc/lib/i386-linux-ghc-8.4.4/libHScgi-3001.3.0.2-CFZtGP1frJvAgiFfMNvlOG-ghc8.4.4.so was not linked against libHSstm-2.4.5.1-ghc8.4.4.so (it uses none of the library's symbols)
-dpkg-shlibdeps: warning: package could avoid a useless dependency if debian/libghc-cgi-dev/usr/lib/haskell-packages/ghc/lib/i386-linux-ghc-8.4.4/libHScgi-3001.3.0.2-CFZtGP1frJvAgiFfMNvlOG-ghc8.4.4.so was not linked against libHStext-1.2.3.1-ghc8.4.4.so (it uses none of the library's symbols)
 dpkg-shlibdeps: warning: package could avoid a useless dependency if debian/libghc-cgi-dev/usr/lib/haskell-packages/ghc/lib/i386-linux-ghc-8.4.4/libHScgi-3001.3.0.2-CFZtGP1frJvAgiFfMNvlOG-ghc8.4.4.so was not linked against libdl.so.2 (it uses none of the library's symbols)
-dpkg-shlibdeps: warning: package could avoid a useless dependency if debian/libghc-cgi-dev/usr/lib/haskell-packages/ghc/lib/i386-linux-ghc-8.4.4/libHScgi-3001.3.0.2-CFZtGP1frJvAgiFfMNvlOG-ghc8.4.4.so was not linked against libatomic.so.1 (it uses none of the library's symbols)
+dpkg-shlibdeps: warning: package could avoid a useless dependency if debian/libghc-cgi-dev/usr/lib/haskell-packages/ghc/lib/i386-linux-ghc-8.4.4/libHScgi-3001.3.0.2-CFZtGP1frJvAgiFfMNvlOG-ghc8.4.4.so was not linked against libutil.so.1 (it uses none of the library's symbols)
+dpkg-shlibdeps: warning: package could avoid a useless dependency if debian/libghc-cgi-dev/usr/lib/haskell-packages/ghc/lib/i386-linux-ghc-8.4.4/libHScgi-3001.3.0.2-CFZtGP1frJvAgiFfMNvlOG-ghc8.4.4.so was not linked against libHSunix-2.7.2.2-ghc8.4.4.so (it uses none of the library's symbols)
+dpkg-shlibdeps: warning: package could avoid a useless dependency if debian/libghc-cgi-dev/usr/lib/haskell-packages/ghc/lib/i386-linux-ghc-8.4.4/libHScgi-3001.3.0.2-CFZtGP1frJvAgiFfMNvlOG-ghc8.4.4.so was not linked against libHSstm-2.4.5.1-ghc8.4.4.so (it uses none of the library's symbols)
+dpkg-shlibdeps: warning: package could avoid a useless dependency if debian/libghc-cgi-dev/usr/lib/haskell-packages/ghc/lib/i386-linux-ghc-8.4.4/libHScgi-3001.3.0.2-CFZtGP1frJvAgiFfMNvlOG-ghc8.4.4.so was not linked against librt.so.1 (it uses none of the library's symbols)
+dpkg-shlibdeps: warning: package could avoid a useless dependency if debian/libghc-cgi-dev/usr/lib/haskell-packages/ghc/lib/i386-linux-ghc-8.4.4/libHScgi-3001.3.0.2-CFZtGP1frJvAgiFfMNvlOG-ghc8.4.4.so was not linked against libHSarray-0.5.2.0-ghc8.4.4.so (it uses none of the library's symbols)
+dpkg-shlibdeps: warning: package could avoid a useless dependency if debian/libghc-cgi-dev/usr/lib/haskell-packages/ghc/lib/i386-linux-ghc-8.4.4/libHScgi-3001.3.0.2-CFZtGP1frJvAgiFfMNvlOG-ghc8.4.4.so was not linked against libHStemplate-haskell-2.13.0.0-ghc8.4.4.so (it uses none of the library's symbols)
+dpkg-shlibdeps: warning: package could avoid a useless dependency if debian/libghc-cgi-dev/usr/lib/haskell-packages/ghc/lib/i386-linux-ghc-8.4.4/libHScgi-3001.3.0.2-CFZtGP1frJvAgiFfMNvlOG-ghc8.4.4.so was not linked against libHSghc-boot-th-8.4.4-ghc8.4.4.so (it uses none of the library's symbols)
+dpkg-shlibdeps: warning: package could avoid a useless dependency if debian/libghc-cgi-dev/usr/lib/haskell-packages/ghc/lib/i386-linux-ghc-8.4.4/libHScgi-3001.3.0.2-CFZtGP1frJvAgiFfMNvlOG-ghc8.4.4.so was not linked against libHSpretty-1.1.3.6-ghc8.4.4.so (it uses none of the library's symbols)
 dh_installdeb -plibghc-cgi-prof 
 dh_perl -plibghc-cgi-prof 
 dh_shlibdeps -plibghc-cgi-prof -- --ignore-missing-info
@@ -1125,12 +1137,14 @@
  dpkg-source --after-build .
 dpkg-buildpackage: info: binary-only upload (no source included)
 I: copying local configuration
+I: user script /srv/workspace/pbuilder/24224/tmp/hooks/B01_cleanup starting
+I: user script /srv/workspace/pbuilder/24224/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/15065 and its subdirectories
-I: Current time: Sat Mar 14 06:45:26 -12 2020
-I: pbuilder-time-stamp: 1584211526
+I: removing directory /srv/workspace/pbuilder/24224 and its subdirectories
+I: Current time: Sat Apr 17 15:09:35 +14 2021
+I: pbuilder-time-stamp: 1618621775