Diff of the two buildlogs:

--
--- b1/build.log	2020-04-12 11:09:00.650952996 +0000
+++ b2/build.log	2020-04-12 11:09:32.586323997 +0000
@@ -1,6 +1,6 @@
 I: pbuilder: network access will be disabled during build
-I: Current time: Sat Apr 11 23:03:30 -12 2020
-I: pbuilder-time-stamp: 1586689410
+I: Current time: Sun May 16 07:32:00 +14 2021
+I: pbuilder-time-stamp: 1621099920
 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 Jul 28 04:05:20 2017 -12
+gpgv: Signature made Sat Jul 29 06:05:20 2017 +14
 gpgv:                using RSA key 424E14D703E7C6D43D9D6F364E7160ED4AC8EE1D
 gpgv: Can't check signature: No public key
 dpkg-source: warning: failed to verify signature on ./golang-github-aliyun-aliyun-oss-go-sdk_1.5.0+dfsg1-1.dsc
@@ -29,6 +29,18 @@
 dpkg-source: info: applying 0001-Fix-import-path-in-sample.go.patch
 I: using fakeroot in build.
 I: Installing the build-deps
+I: user script /srv/workspace/pbuilder/16118/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/16118/tmp/hooks/D01_modify_environment finished
  -> Attempting to satisfy build-dependencies
  -> Creating pbuilder-satisfydepends-dummy package
 Package: pbuilder-satisfydepends-dummy
@@ -113,7 +125,7 @@
 Get: 41 http://deb.debian.org/debian buster/main i386 golang-github-kr-text-dev all 0.1.0-1 [10.8 kB]
 Get: 42 http://deb.debian.org/debian buster/main i386 golang-github-kr-pretty-dev all 0.1.0-1 [10.2 kB]
 Get: 43 http://deb.debian.org/debian buster/main i386 golang-gopkg-check.v1-dev all 0.0+git20180628.788fd78-1 [31.6 kB]
-Fetched 74.3 MB in 19s (3942 kB/s)
+Fetched 74.3 MB in 1s (86.4 MB/s)
 debconf: delaying package configuration, since apt-utils is not installed
 Selecting previously unselected package libbsd0:i386.
 (Reading database ... 
(Reading database ... 5%
(Reading database ... 10%
(Reading database ... 15%
(Reading database ... 20%
(Reading database ... 25%
(Reading database ... 30%
(Reading database ... 35%
(Reading database ... 40%
(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.)
@@ -308,7 +320,7 @@
 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-aliyun-aliyun-oss-go-sdk-1.5.0+dfsg1/ && 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-aliyun-aliyun-oss-go-sdk-1.5.0+dfsg1/ && 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-aliyun-aliyun-oss-go-sdk
 dpkg-buildpackage: info: source version 1.5.0+dfsg1-1
 dpkg-buildpackage: info: source distribution unstable
@@ -326,26 +338,26 @@
    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-aliyun-aliyun-oss-go-sdk-1.5.0\+dfsg1/obj-i686-linux-gnu/src\" -asmflags=all=\"-trimpath=/build/golang-github-aliyun-aliyun-oss-go-sdk-1.5.0\+dfsg1/obj-i686-linux-gnu/src\" -v -p 10 github.com/aliyun/aliyun-oss-go-sdk github.com/aliyun/aliyun-oss-go-sdk/oss github.com/aliyun/aliyun-oss-go-sdk/sample
+	cd obj-i686-linux-gnu && go install -gcflags=all=\"-trimpath=/build/golang-github-aliyun-aliyun-oss-go-sdk-1.5.0\+dfsg1/obj-i686-linux-gnu/src\" -asmflags=all=\"-trimpath=/build/golang-github-aliyun-aliyun-oss-go-sdk-1.5.0\+dfsg1/obj-i686-linux-gnu/src\" -v -p 18 github.com/aliyun/aliyun-oss-go-sdk github.com/aliyun/aliyun-oss-go-sdk/oss github.com/aliyun/aliyun-oss-go-sdk/sample
 errors
-internal/race
-runtime/internal/atomic
-unicode/utf8
-runtime/internal/sys
-math/bits
-sync/atomic
-internal/cpu
 crypto/subtle
+internal/race
 unicode
+vendor/golang_org/x/crypto/cryptobyte/asn1
 encoding
-unicode/utf16
-vendor/golang_org/x/net/dns/dnsmessage
+math/bits
 internal/nettrace
-internal/testlog
+internal/cpu
+runtime/internal/atomic
+sync/atomic
 container/list
-math
+vendor/golang_org/x/net/dns/dnsmessage
+unicode/utf8
 crypto/internal/subtle
-vendor/golang_org/x/crypto/cryptobyte/asn1
+unicode/utf16
+math
+runtime/internal/sys
+internal/testlog
 runtime/cgo
 internal/bytealg
 runtime
@@ -358,18 +370,18 @@
 reflect
 syscall
 hash
-crypto/cipher
 crypto/internal/randutil
 bytes
+crypto/cipher
 strings
+crypto/hmac
 crypto
 hash/crc64
-crypto/hmac
 hash/crc32
-crypto/md5
 crypto/sha1
-crypto/sha512
 crypto/sha256
+crypto/sha512
+crypto/md5
 crypto/aes
 vendor/golang_org/x/text/transform
 bufio
@@ -377,46 +389,46 @@
 internal/syscall/unix
 time
 internal/poll
-os
-sort
 encoding/binary
-fmt
-path/filepath
+sort
+os
 encoding/base64
+vendor/golang_org/x/crypto/internal/chacha20
 crypto/des
 vendor/golang_org/x/crypto/poly1305
-vendor/golang_org/x/crypto/internal/chacha20
 vendor/golang_org/x/crypto/curve25519
-io/ioutil
 vendor/golang_org/x/crypto/chacha20poly1305
 encoding/pem
+path/filepath
+fmt
+io/ioutil
 context
 mime
-log
 net/url
 encoding/hex
+log
+net/http/internal
+mime/quotedprintable
+vendor/golang_org/x/net/http2/hpack
 encoding/json
-encoding/xml
-vendor/golang_org/x/text/unicode/norm
 compress/flate
+encoding/xml
 math/big
-vendor/golang_org/x/net/http2/hpack
-net
+vendor/golang_org/x/text/unicode/norm
 vendor/golang_org/x/text/unicode/bidi
-net/http/internal
-mime/quotedprintable
 os/exec
+net
 vendor/golang_org/x/text/secure/bidirule
 compress/gzip
 vendor/golang_org/x/net/idna
-crypto/dsa
 crypto/rand
-encoding/asn1
 crypto/elliptic
+crypto/dsa
+encoding/asn1
 crypto/rsa
-crypto/ecdsa
 crypto/x509/pkix
 vendor/golang_org/x/crypto/cryptobyte
+crypto/ecdsa
 vendor/golang_org/x/net/http/httpproxy
 net/textproto
 crypto/x509
@@ -466,12 +478,14 @@
  dpkg-source --after-build .
 dpkg-buildpackage: info: binary-only upload (no source included)
 I: copying local configuration
+I: user script /srv/workspace/pbuilder/16118/tmp/hooks/B01_cleanup starting
+I: user script /srv/workspace/pbuilder/16118/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/30542 and its subdirectories
-I: Current time: Sat Apr 11 23:09:00 -12 2020
-I: pbuilder-time-stamp: 1586689740
+I: removing directory /srv/workspace/pbuilder/16118 and its subdirectories
+I: Current time: Sun May 16 07:32:30 +14 2021
+I: pbuilder-time-stamp: 1621099950