Diff of the two buildlogs:

--
--- b1/build.log	2020-05-08 05:06:24.856852688 +0000
+++ b2/build.log	2020-05-08 05:07:14.111906971 +0000
@@ -1,6 +1,6 @@
 I: pbuilder: network access will be disabled during build
-I: Current time: Thu May  7 17:02:26 -12 2020
-I: pbuilder-time-stamp: 1588914146
+I: Current time: Thu Jul 14 07:52:27 +14 2022
+I: pbuilder-time-stamp: 1657734747
 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 Dec 22 15:20:02 2018 -12
+gpgv: Signature made Sun Dec 23 17:20:02 2018 +14
 gpgv:                using RSA key 142421B19AD4A95996F95072EA2500B412C59ACF
 gpgv: Can't check signature: No public key
 dpkg-source: warning: failed to verify signature on ./golang-github-dghubble-sling_1.2.0-1.dsc
@@ -27,6 +27,18 @@
 dpkg-source: info: unpacking golang-github-dghubble-sling_1.2.0-1.debian.tar.xz
 I: using fakeroot in build.
 I: Installing the build-deps
+I: user script /srv/workspace/pbuilder/19394/tmp/hooks/D01_modify_environment starting
+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/19394/tmp/hooks/D01_modify_environment finished
  -> Attempting to satisfy build-dependencies
  -> Creating pbuilder-satisfydepends-dummy package
 Package: pbuilder-satisfydepends-dummy
@@ -115,7 +127,7 @@
 Get: 43 http://deb.debian.org/debian buster/main i386 golang-x-text-dev all 0.3.0-2 [3592 B]
 Get: 44 http://deb.debian.org/debian buster/main i386 golang-golang-x-net-dev all 1:0.0+git20181201.351d144+dfsg-3 [637 kB]
 Get: 45 http://deb.debian.org/debian buster/main i386 golang-golang-x-oauth2-dev all 0.0~git20180821.d2e6202-1 [30.1 kB]
-Fetched 79.5 MB in 13s (6024 kB/s)
+Fetched 79.5 MB in 1s (55.3 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 ... 19231 files and directories currently installed.)
@@ -318,7 +330,7 @@
 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-dghubble-sling-1.2.0/ && 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-dghubble-sling-1.2.0/ && 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-dghubble-sling
 dpkg-buildpackage: info: source version 1.2.0-1
 dpkg-buildpackage: info: source distribution unstable
@@ -336,48 +348,48 @@
    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-dghubble-sling-1.2.0/obj-i686-linux-gnu/src\" -asmflags=all=\"-trimpath=/build/golang-github-dghubble-sling-1.2.0/obj-i686-linux-gnu/src\" -v -p 10 github.com/dghubble/sling
+	cd obj-i686-linux-gnu && go install -gcflags=all=\"-trimpath=/build/golang-github-dghubble-sling-1.2.0/obj-i686-linux-gnu/src\" -asmflags=all=\"-trimpath=/build/golang-github-dghubble-sling-1.2.0/obj-i686-linux-gnu/src\" -v -p 18 github.com/dghubble/sling
 errors
-unicode/utf8
 internal/race
-unicode
+runtime/internal/sys
 encoding
-math/bits
-sync/atomic
-runtime/internal/atomic
+crypto/subtle
 unicode/utf16
-container/list
-runtime/internal/sys
+unicode/utf8
 crypto/internal/subtle
+internal/nettrace
+sync/atomic
+vendor/golang_org/x/net/dns/dnsmessage
+runtime/internal/atomic
 internal/cpu
-internal/testlog
-crypto/subtle
-math
+math/bits
 vendor/golang_org/x/crypto/cryptobyte/asn1
-vendor/golang_org/x/net/dns/dnsmessage
-internal/nettrace
-internal/bytealg
+unicode
+container/list
 runtime/cgo
+math
+internal/testlog
+internal/bytealg
 runtime
 strconv
 crypto/rc4
 sync
-internal/singleflight
-math/rand
 io
+math/rand
+internal/singleflight
 reflect
 syscall
 hash
-strings
 crypto/internal/randutil
-crypto/cipher
 bytes
-hash/crc32
+crypto/cipher
+strings
 crypto
+hash/crc32
 crypto/hmac
-crypto/sha512
 crypto/md5
 crypto/sha1
+crypto/sha512
 crypto/sha256
 crypto/aes
 vendor/golang_org/x/text/transform
@@ -386,45 +398,45 @@
 internal/syscall/unix
 time
 internal/poll
-sort
 encoding/binary
+sort
 os
-vendor/golang_org/x/crypto/poly1305
-vendor/golang_org/x/crypto/internal/chacha20
-crypto/des
 encoding/base64
+crypto/des
+vendor/golang_org/x/crypto/internal/chacha20
+vendor/golang_org/x/crypto/poly1305
 vendor/golang_org/x/crypto/curve25519
-path/filepath
-fmt
 vendor/golang_org/x/crypto/chacha20poly1305
 encoding/pem
+path/filepath
+fmt
 io/ioutil
-encoding/json
-vendor/golang_org/x/net/http2/hpack
+context
 net/url
+encoding/json
 encoding/hex
-context
 log
-mime
+net/http/internal
 compress/flate
-vendor/golang_org/x/text/unicode/norm
-math/big
 mime/quotedprintable
-vendor/golang_org/x/text/unicode/bidi
+mime
+vendor/golang_org/x/net/http2/hpack
+math/big
+vendor/golang_org/x/text/unicode/norm
 net
-net/http/internal
+vendor/golang_org/x/text/unicode/bidi
 github.com/google/go-querystring/query
 vendor/golang_org/x/text/secure/bidirule
 compress/gzip
 vendor/golang_org/x/net/idna
 crypto/rand
-crypto/dsa
-crypto/elliptic
 encoding/asn1
+crypto/elliptic
+crypto/dsa
 crypto/rsa
-vendor/golang_org/x/crypto/cryptobyte
-crypto/x509/pkix
 crypto/ecdsa
+crypto/x509/pkix
+vendor/golang_org/x/crypto/cryptobyte
 vendor/golang_org/x/net/http/httpproxy
 net/textproto
 crypto/x509
@@ -435,7 +447,7 @@
 net/http
 github.com/dghubble/sling
    dh_auto_test -O--buildsystem=golang
-	cd obj-i686-linux-gnu && go test -vet=off -v -p 10 github.com/dghubble/sling
+	cd obj-i686-linux-gnu && go test -vet=off -v -p 18 github.com/dghubble/sling
 === RUN   TestNew
 --- PASS: TestNew (0.00s)
 === RUN   TestSlingNew
@@ -493,7 +505,7 @@
 === RUN   TestReceive_errorCreatingRequest
 --- PASS: TestReceive_errorCreatingRequest (0.00s)
 PASS
-ok  	github.com/dghubble/sling	0.020s
+ok  	github.com/dghubble/sling	0.008s
    create-stamp debian/debhelper-build-stamp
  fakeroot debian/rules binary
 dh binary --buildsystem=golang --with=golang
@@ -522,12 +534,14 @@
  dpkg-source --after-build .
 dpkg-buildpackage: info: binary-only upload (no source included)
 I: copying local configuration
+I: user script /srv/workspace/pbuilder/19394/tmp/hooks/B01_cleanup starting
+I: user script /srv/workspace/pbuilder/19394/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/12382 and its subdirectories
-I: Current time: Thu May  7 17:06:24 -12 2020
-I: pbuilder-time-stamp: 1588914384
+I: removing directory /srv/workspace/pbuilder/19394 and its subdirectories
+I: Current time: Thu Jul 14 07:53:13 +14 2022
+I: pbuilder-time-stamp: 1657734793