Diff of the two buildlogs:

--
--- b1/build.log	2020-04-02 00:35:57.906205903 +0000
+++ b2/build.log	2020-04-02 00:36:42.493331527 +0000
@@ -1,6 +1,6 @@
 I: pbuilder: network access will be disabled during build
-I: Current time: Wed Apr  1 12:29:39 -12 2020
-I: pbuilder-time-stamp: 1585787379
+I: Current time: Wed May  5 20:58:58 +14 2021
+I: pbuilder-time-stamp: 1620197938
 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 Mar  6 12:41:04 2017 -12
+gpgv: Signature made Tue Mar  7 14:41:04 2017 +14
 gpgv:                using RSA key B24CA63F6EBBE84D
 gpgv: Can't check signature: No public key
 dpkg-source: warning: failed to verify signature on ./golang-github-xanzy-go-cloudstack_2.1.1+git20160728.1.1e2cbf6-1.dsc
@@ -27,6 +27,18 @@
 dpkg-source: info: unpacking golang-github-xanzy-go-cloudstack_2.1.1+git20160728.1.1e2cbf6-1.debian.tar.xz
 I: using fakeroot in build.
 I: Installing the build-deps
+I: user script /srv/workspace/pbuilder/55753/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/55753/tmp/hooks/D01_modify_environment finished
  -> Attempting to satisfy build-dependencies
  -> Creating pbuilder-satisfydepends-dummy package
 Package: pbuilder-satisfydepends-dummy
@@ -105,7 +117,7 @@
 Get: 37 http://deb.debian.org/debian buster/main i386 golang-src i386 2:1.11~1 [4348 B]
 Get: 38 http://deb.debian.org/debian buster/main i386 golang-go i386 2:1.11~1 [23.4 kB]
 Get: 39 http://deb.debian.org/debian buster/main i386 golang-any i386 2:1.11~1 [4472 B]
-Fetched 74.2 MB in 55s (1351 kB/s)
+Fetched 74.2 MB in 1s (79.3 MB/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.)
@@ -284,7 +296,7 @@
 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/golang-github-xanzy-go-cloudstack-2.1.1+git20160728.1.1e2cbf6/ && env PATH="/usr/sbin:/usr/bin:/sbin:/bin:/usr/games" HOME="/nonexistent/first-build" dpkg-buildpackage -us -uc -b
+I: Running cd /build/golang-github-xanzy-go-cloudstack-2.1.1+git20160728.1.1e2cbf6/ && 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 golang-github-xanzy-go-cloudstack
 dpkg-buildpackage: info: source version 2.1.1+git20160728.1.1e2cbf6-1
 dpkg-buildpackage: info: source distribution unstable
@@ -302,50 +314,50 @@
    dh_autoreconf -O--buildsystem=golang
    dh_auto_configure -O--buildsystem=golang
    dh_auto_build -O--buildsystem=golang
-	cd obj-i686-linux-gnu && go install -gcflags=all=\"-trimpath=/build/golang-github-xanzy-go-cloudstack-2.1.1\+git20160728.1.1e2cbf6/obj-i686-linux-gnu/src\" -asmflags=all=\"-trimpath=/build/golang-github-xanzy-go-cloudstack-2.1.1\+git20160728.1.1e2cbf6/obj-i686-linux-gnu/src\" -v -p 10 github.com/xanzy/go-cloudstack/cloudstack github.com/xanzy/go-cloudstack/generate
+	cd obj-i686-linux-gnu && go install -gcflags=all=\"-trimpath=/build/golang-github-xanzy-go-cloudstack-2.1.1\+git20160728.1.1e2cbf6/obj-i686-linux-gnu/src\" -asmflags=all=\"-trimpath=/build/golang-github-xanzy-go-cloudstack-2.1.1\+git20160728.1.1e2cbf6/obj-i686-linux-gnu/src\" -v -p 18 github.com/xanzy/go-cloudstack/cloudstack github.com/xanzy/go-cloudstack/generate
+internal/race
 errors
+container/list
+vendor/golang_org/x/crypto/cryptobyte/asn1
+encoding
+crypto/internal/subtle
+crypto/subtle
 unicode/utf8
 unicode
-crypto/subtle
-runtime/internal/sys
-internal/race
+unicode/utf16
+math/bits
 sync/atomic
-internal/cpu
 runtime/internal/atomic
-math/bits
-math
-container/list
-crypto/internal/subtle
-vendor/golang_org/x/crypto/cryptobyte/asn1
-internal/testlog
 vendor/golang_org/x/net/dns/dnsmessage
+runtime/cgo
 internal/nettrace
+runtime/internal/sys
+internal/cpu
+math
+internal/testlog
 internal/bytealg
-encoding
-unicode/utf16
-runtime/cgo
 runtime
 strconv
 crypto/rc4
 sync
 io
-math/rand
 reflect
+math/rand
 internal/singleflight
 syscall
-bytes
 hash
+bytes
 crypto/cipher
 crypto/internal/randutil
 strings
 text/tabwriter
 crypto/hmac
-hash/crc32
 crypto
-crypto/md5
+hash/crc32
 crypto/sha1
 crypto/sha512
 crypto/sha256
+crypto/md5
 crypto/aes
 vendor/golang_org/x/text/transform
 bufio
@@ -353,57 +365,57 @@
 internal/syscall/unix
 time
 internal/poll
-os
-sort
 encoding/binary
+sort
+os
 regexp/syntax
-vendor/golang_org/x/crypto/poly1305
-vendor/golang_org/x/crypto/internal/chacha20
 crypto/des
+vendor/golang_org/x/crypto/internal/chacha20
+vendor/golang_org/x/crypto/poly1305
 encoding/base64
 vendor/golang_org/x/crypto/curve25519
 vendor/golang_org/x/crypto/chacha20poly1305
 encoding/pem
 path/filepath
 fmt
-regexp
 io/ioutil
-encoding/hex
+regexp
 context
+encoding/hex
+net/http/internal
 log
-net/url
+go/token
 vendor/golang_org/x/net/http2/hpack
-mime
-compress/flate
+net/url
 encoding/json
 math/big
-vendor/golang_org/x/text/unicode/norm
+compress/flate
+mime
 mime/quotedprintable
-vendor/golang_org/x/text/unicode/bidi
-net
-net/http/internal
-go/token
+vendor/golang_org/x/text/unicode/norm
 os/exec
+net
+vendor/golang_org/x/text/unicode/bidi
 go/scanner
-compress/gzip
-vendor/golang_org/x/text/secure/bidirule
 go/ast
+vendor/golang_org/x/text/secure/bidirule
+compress/gzip
 vendor/golang_org/x/net/idna
 go/parser
 go/printer
+crypto/dsa
 crypto/rand
 crypto/elliptic
-crypto/dsa
 encoding/asn1
 crypto/rsa
 go/format
 github.com/xanzy/go-cloudstack/generate
+crypto/ecdsa
 crypto/x509/pkix
 vendor/golang_org/x/crypto/cryptobyte
-crypto/ecdsa
 vendor/golang_org/x/net/http/httpproxy
-crypto/x509
 net/textproto
+crypto/x509
 vendor/golang_org/x/net/http/httpguts
 mime/multipart
 crypto/tls
@@ -411,7 +423,7 @@
 net/http
 github.com/xanzy/go-cloudstack/cloudstack
    dh_auto_test -O--buildsystem=golang
-	cd obj-i686-linux-gnu && go test -vet=off -v -p 10 github.com/xanzy/go-cloudstack/cloudstack github.com/xanzy/go-cloudstack/generate
+	cd obj-i686-linux-gnu && go test -vet=off -v -p 18 github.com/xanzy/go-cloudstack/cloudstack github.com/xanzy/go-cloudstack/generate
 ?   	github.com/xanzy/go-cloudstack/cloudstack	[no test files]
 ?   	github.com/xanzy/go-cloudstack/generate	[no test files]
    create-stamp debian/debhelper-build-stamp
@@ -450,12 +462,14 @@
  dpkg-source --after-build .
 dpkg-buildpackage: info: binary-only upload (no source included)
 I: copying local configuration
+I: user script /srv/workspace/pbuilder/55753/tmp/hooks/B01_cleanup starting
+I: user script /srv/workspace/pbuilder/55753/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/6613 and its subdirectories
-I: Current time: Wed Apr  1 12:35:57 -12 2020
-I: pbuilder-time-stamp: 1585787757
+I: removing directory /srv/workspace/pbuilder/55753 and its subdirectories
+I: Current time: Wed May  5 20:59:41 +14 2021
+I: pbuilder-time-stamp: 1620197981