Diff of the two buildlogs:

--
--- b1/build.log	2020-03-14 23:21:24.662076663 +0000
+++ b2/build.log	2020-03-14 23:22:30.728733412 +0000
@@ -1,6 +1,6 @@
 I: pbuilder: network access will be disabled during build
-I: Current time: Sat Mar 14 11:09:12 -12 2020
-I: pbuilder-time-stamp: 1584227352
+I: Current time: Sat Apr 17 19:44:24 +14 2021
+I: pbuilder-time-stamp: 1618638264
 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 Oct  1 07:20:30 2018 -12
+gpgv: Signature made Tue Oct  2 09:20:30 2018 +14
 gpgv:                using RSA key 27D73CA5F5B5D7E01A5136F5D7A86780CC64403C
 gpgv:                issuer "iliastsi@debian.org"
 gpgv: Can't check signature: No public key
@@ -28,6 +28,18 @@
 dpkg-source: info: unpacking haskell-mime-mail_0.4.14-4.debian.tar.xz
 I: Not using root during the build.
 I: Installing the build-deps
+I: user script /srv/workspace/pbuilder/5949/tmp/hooks/D01_modify_environment starting
+disorder-fs debug: Running on profitbricks-build6-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/5949/tmp/hooks/D01_modify_environment finished
  -> Attempting to satisfy build-dependencies
  -> Creating pbuilder-satisfydepends-dummy package
 Package: pbuilder-satisfydepends-dummy
@@ -168,7 +180,7 @@
 Get: 73 http://deb.debian.org/debian buster/main i386 libghc-random-dev i386 1.1-7+b2 [133 kB]
 Get: 74 http://deb.debian.org/debian buster/main i386 libghc-random-doc all 1.1-7 [58.3 kB]
 Get: 75 http://deb.debian.org/debian buster/main i386 libghc-random-prof i386 1.1-7+b2 [112 kB]
-Fetched 159 MB in 39s (4032 kB/s)
+Fetched 159 MB in 2s (84.1 MB/s)
 debconf: delaying package configuration, since apt-utils is not installed
 Selecting previously unselected package libbsd0:i386.
 (Reading database ... 
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(Reading database ... 60%
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(Reading database ... 70%
(Reading database ... 75%
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(Reading database ... 85%
(Reading database ... 90%
(Reading database ... 95%
(Reading database ... 100%
(Reading database ... 19231 files and directories currently installed.)
@@ -488,7 +500,7 @@
 Building tag database...
  -> Finished parsing the build-deps
 I: Building the package
-I: Running cd /build/haskell-mime-mail-0.4.14/ && env PATH="/usr/sbin:/usr/bin:/sbin:/bin:/usr/games" HOME="/nonexistent/first-build" dpkg-buildpackage -us -uc -b
+I: Running cd /build/haskell-mime-mail-0.4.14/ && 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-mime-mail
 dpkg-buildpackage: info: source version 0.4.14-4
 dpkg-buildpackage: info: source distribution unstable
@@ -625,7 +637,7 @@
 creating dist-ghc/doc
 creating dist-ghc/doc/html
 creating dist-ghc/doc/html/mime-mail
-/usr/bin/haddock '@dist-ghc/doc/html/mime-mail/haddock-response5328-3.txt' '--mathjax=file:///usr/share/javascript/mathjax/MathJax.js'
+/usr/bin/haddock '@dist-ghc/doc/html/mime-mail/haddock-response7767-3.txt' '--mathjax=file:///usr/share/javascript/mathjax/MathJax.js'
 Warning: --source-* options are ignored when --hyperlinked-source is enabled.
 Haddock coverage:
   89% ( 32 / 36) in 'Network.Mail.Mime'
@@ -790,22 +802,22 @@
 dh_installdeb -plibghc-mime-mail-dev 
 dh_perl -plibghc-mime-mail-dev 
 dh_shlibdeps -plibghc-mime-mail-dev -- --ignore-missing-info
-dpkg-shlibdeps: warning: debian/libghc-mime-mail-dev/usr/lib/haskell-packages/ghc/lib/i386-linux-ghc-8.4.4/libHSmime-mail-0.4.14-LM9l1n3B8ZIBifilZIJfvW-ghc8.4.4.so contains an unresolvable reference to symbol stg_upd_frame_info: it's probably a plugin
+dpkg-shlibdeps: warning: debian/libghc-mime-mail-dev/usr/lib/haskell-packages/ghc/lib/i386-linux-ghc-8.4.4/libHSmime-mail-0.4.14-LM9l1n3B8ZIBifilZIJfvW-ghc8.4.4.so contains an unresolvable reference to symbol stg_ap_p_fast: it's probably a plugin
 dpkg-shlibdeps: warning: 31 other similar warnings have been skipped (use -v to see them all)
-dpkg-shlibdeps: warning: package could avoid a useless dependency if debian/libghc-mime-mail-dev/usr/lib/haskell-packages/ghc/lib/i386-linux-ghc-8.4.4/libHSmime-mail-0.4.14-LM9l1n3B8ZIBifilZIJfvW-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-mime-mail-dev/usr/lib/haskell-packages/ghc/lib/i386-linux-ghc-8.4.4/libHSmime-mail-0.4.14-LM9l1n3B8ZIBifilZIJfvW-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-mime-mail-dev/usr/lib/haskell-packages/ghc/lib/i386-linux-ghc-8.4.4/libHSmime-mail-0.4.14-LM9l1n3B8ZIBifilZIJfvW-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-mime-mail-dev/usr/lib/haskell-packages/ghc/lib/i386-linux-ghc-8.4.4/libHSmime-mail-0.4.14-LM9l1n3B8ZIBifilZIJfvW-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-mime-mail-dev/usr/lib/haskell-packages/ghc/lib/i386-linux-ghc-8.4.4/libHSmime-mail-0.4.14-LM9l1n3B8ZIBifilZIJfvW-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-mime-mail-dev/usr/lib/haskell-packages/ghc/lib/i386-linux-ghc-8.4.4/libHSmime-mail-0.4.14-LM9l1n3B8ZIBifilZIJfvW-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-mime-mail-dev/usr/lib/haskell-packages/ghc/lib/i386-linux-ghc-8.4.4/libHSmime-mail-0.4.14-LM9l1n3B8ZIBifilZIJfvW-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-mime-mail-dev/usr/lib/haskell-packages/ghc/lib/i386-linux-ghc-8.4.4/libHSmime-mail-0.4.14-LM9l1n3B8ZIBifilZIJfvW-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-mime-mail-dev/usr/lib/haskell-packages/ghc/lib/i386-linux-ghc-8.4.4/libHSmime-mail-0.4.14-LM9l1n3B8ZIBifilZIJfvW-ghc8.4.4.so was not linked against libHStime-1.8.0.2-ghc8.4.4.so (it uses none of the library's symbols)
-dpkg-shlibdeps: warning: package could avoid a useless dependency if debian/libghc-mime-mail-dev/usr/lib/haskell-packages/ghc/lib/i386-linux-ghc-8.4.4/libHSmime-mail-0.4.14-LM9l1n3B8ZIBifilZIJfvW-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-mime-mail-dev/usr/lib/haskell-packages/ghc/lib/i386-linux-ghc-8.4.4/libHSmime-mail-0.4.14-LM9l1n3B8ZIBifilZIJfvW-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-mime-mail-dev/usr/lib/haskell-packages/ghc/lib/i386-linux-ghc-8.4.4/libHSmime-mail-0.4.14-LM9l1n3B8ZIBifilZIJfvW-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-mime-mail-dev/usr/lib/haskell-packages/ghc/lib/i386-linux-ghc-8.4.4/libHSmime-mail-0.4.14-LM9l1n3B8ZIBifilZIJfvW-ghc8.4.4.so was not linked against libHSdirectory-1.3.1.5-ghc8.4.4.so (it uses none of the library's symbols)
+dpkg-shlibdeps: warning: package could avoid a useless dependency if debian/libghc-mime-mail-dev/usr/lib/haskell-packages/ghc/lib/i386-linux-ghc-8.4.4/libHSmime-mail-0.4.14-LM9l1n3B8ZIBifilZIJfvW-ghc8.4.4.so was not linked against libHStime-1.8.0.2-ghc8.4.4.so (it uses none of the library's symbols)
 dpkg-shlibdeps: warning: package could avoid a useless dependency if debian/libghc-mime-mail-dev/usr/lib/haskell-packages/ghc/lib/i386-linux-ghc-8.4.4/libHSmime-mail-0.4.14-LM9l1n3B8ZIBifilZIJfvW-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-mime-mail-dev/usr/lib/haskell-packages/ghc/lib/i386-linux-ghc-8.4.4/libHSmime-mail-0.4.14-LM9l1n3B8ZIBifilZIJfvW-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-mime-mail-dev/usr/lib/haskell-packages/ghc/lib/i386-linux-ghc-8.4.4/libHSmime-mail-0.4.14-LM9l1n3B8ZIBifilZIJfvW-ghc8.4.4.so was not linked against libHScontainers-0.5.11.0-ghc8.4.4.so (it uses none of the library's symbols)
+dpkg-shlibdeps: warning: package could avoid a useless dependency if debian/libghc-mime-mail-dev/usr/lib/haskell-packages/ghc/lib/i386-linux-ghc-8.4.4/libHSmime-mail-0.4.14-LM9l1n3B8ZIBifilZIJfvW-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-mime-mail-dev/usr/lib/haskell-packages/ghc/lib/i386-linux-ghc-8.4.4/libHSmime-mail-0.4.14-LM9l1n3B8ZIBifilZIJfvW-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-mime-mail-dev/usr/lib/haskell-packages/ghc/lib/i386-linux-ghc-8.4.4/libHSmime-mail-0.4.14-LM9l1n3B8ZIBifilZIJfvW-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-mime-mail-dev/usr/lib/haskell-packages/ghc/lib/i386-linux-ghc-8.4.4/libHSmime-mail-0.4.14-LM9l1n3B8ZIBifilZIJfvW-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-mime-mail-dev/usr/lib/haskell-packages/ghc/lib/i386-linux-ghc-8.4.4/libHSmime-mail-0.4.14-LM9l1n3B8ZIBifilZIJfvW-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-mime-mail-dev/usr/lib/haskell-packages/ghc/lib/i386-linux-ghc-8.4.4/libHSmime-mail-0.4.14-LM9l1n3B8ZIBifilZIJfvW-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-mime-mail-dev/usr/lib/haskell-packages/ghc/lib/i386-linux-ghc-8.4.4/libHSmime-mail-0.4.14-LM9l1n3B8ZIBifilZIJfvW-ghc8.4.4.so was not linked against librt.so.1 (it uses none of the library's symbols)
 dh_installdeb -plibghc-mime-mail-prof 
 dh_perl -plibghc-mime-mail-prof 
 dh_shlibdeps -plibghc-mime-mail-prof -- --ignore-missing-info
@@ -828,12 +840,14 @@
  dpkg-source --after-build .
 dpkg-buildpackage: info: binary-only upload (no source included)
 I: copying local configuration
+I: user script /srv/workspace/pbuilder/5949/tmp/hooks/B01_cleanup starting
+I: user script /srv/workspace/pbuilder/5949/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/28009 and its subdirectories
-I: Current time: Sat Mar 14 11:21:24 -12 2020
-I: pbuilder-time-stamp: 1584228084
+I: removing directory /srv/workspace/pbuilder/5949 and its subdirectories
+I: Current time: Sat Apr 17 19:45:28 +14 2021
+I: pbuilder-time-stamp: 1618638328