Diff of the two buildlogs:

--
--- b1/build.log	2024-12-05 20:42:13.581619409 +0000
+++ b2/build.log	2024-12-05 20:43:09.423092764 +0000
@@ -1,6 +1,6 @@
 I: pbuilder: network access will be disabled during build
-I: Current time: Wed Jan  7 15:03:26 -12 2026
-I: pbuilder-time-stamp: 1767841406
+I: Current time: Fri Dec  6 10:42:16 +14 2024
+I: pbuilder-time-stamp: 1733431336
 I: Building the build Environment
 I: extracting base tarball [/var/cache/pbuilder/unstable-reproducible-base.tgz]
 I: copying local configuration
@@ -25,52 +25,84 @@
 dpkg-source: info: unpacking golang-github-go-openapi-swag_0.23.0-1.debian.tar.xz
 I: Not using root during the build.
 I: Installing the build-deps
-I: user script /srv/workspace/pbuilder/1228666/tmp/hooks/D02_print_environment starting
+I: user script /srv/workspace/pbuilder/3420757/tmp/hooks/D01_modify_environment starting
+debug: Running on codethink02-arm64.
+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
+'/bin/sh' -> '/bin/bash'
+lrwxrwxrwx 1 root root 9 Dec  5 20:42 /bin/sh -> /bin/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/3420757/tmp/hooks/D01_modify_environment finished
+I: user script /srv/workspace/pbuilder/3420757/tmp/hooks/D02_print_environment starting
 I: set
-  BUILDDIR='/build/reproducible-path'
-  BUILDUSERGECOS='first user,first room,first work-phone,first home-phone,first other'
-  BUILDUSERNAME='pbuilder1'
-  BUILD_ARCH='arm64'
-  DEBIAN_FRONTEND='noninteractive'
+  BASH=/bin/sh
+  BASHOPTS=checkwinsize:cmdhist:complete_fullquote:extquote:force_fignore:globasciiranges:globskipdots:hostcomplete:interactive_comments:patsub_replacement:progcomp:promptvars:sourcepath
+  BASH_ALIASES=()
+  BASH_ARGC=()
+  BASH_ARGV=()
+  BASH_CMDS=()
+  BASH_LINENO=([0]="12" [1]="0")
+  BASH_LOADABLES_PATH=/usr/local/lib/bash:/usr/lib/bash:/opt/local/lib/bash:/usr/pkg/lib/bash:/opt/pkg/lib/bash:.
+  BASH_SOURCE=([0]="/tmp/hooks/D02_print_environment" [1]="/tmp/hooks/D02_print_environment")
+  BASH_VERSINFO=([0]="5" [1]="2" [2]="37" [3]="1" [4]="release" [5]="aarch64-unknown-linux-gnu")
+  BASH_VERSION='5.2.37(1)-release'
+  BUILDDIR=/build/reproducible-path
+  BUILDUSERGECOS='second user,second room,second work-phone,second home-phone,second other'
+  BUILDUSERNAME=pbuilder2
+  BUILD_ARCH=arm64
+  DEBIAN_FRONTEND=noninteractive
   DEB_BUILD_OPTIONS='buildinfo=+all reproducible=+all parallel=12 '
-  DISTRIBUTION='unstable'
-  HOME='/root'
-  HOST_ARCH='arm64'
+  DIRSTACK=()
+  DISTRIBUTION=unstable
+  EUID=0
+  FUNCNAME=([0]="Echo" [1]="main")
+  GROUPS=()
+  HOME=/root
+  HOSTNAME=i-capture-the-hostname
+  HOSTTYPE=aarch64
+  HOST_ARCH=arm64
   IFS=' 	
   '
-  INVOCATION_ID='e6e23200a3104d3189f568f505923b50'
-  LANG='C'
-  LANGUAGE='en_US:en'
-  LC_ALL='C'
-  MAIL='/var/mail/root'
-  OPTIND='1'
-  PATH='/usr/sbin:/usr/bin:/sbin:/bin:/usr/games'
-  PBCURRENTCOMMANDLINEOPERATION='build'
-  PBUILDER_OPERATION='build'
-  PBUILDER_PKGDATADIR='/usr/share/pbuilder'
-  PBUILDER_PKGLIBDIR='/usr/lib/pbuilder'
-  PBUILDER_SYSCONFDIR='/etc'
-  PPID='1228666'
-  PS1='# '
-  PS2='> '
+  INVOCATION_ID=81bc45aa12eb448c8224c8cfcc9d493e
+  LANG=C
+  LANGUAGE=nl_BE:nl
+  LC_ALL=C
+  MACHTYPE=aarch64-unknown-linux-gnu
+  MAIL=/var/mail/root
+  OPTERR=1
+  OPTIND=1
+  OSTYPE=linux-gnu
+  PATH=/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/i/capture/the/path
+  PBCURRENTCOMMANDLINEOPERATION=build
+  PBUILDER_OPERATION=build
+  PBUILDER_PKGDATADIR=/usr/share/pbuilder
+  PBUILDER_PKGLIBDIR=/usr/lib/pbuilder
+  PBUILDER_SYSCONFDIR=/etc
+  PIPESTATUS=([0]="0")
+  POSIXLY_CORRECT=y
+  PPID=3420757
   PS4='+ '
-  PWD='/'
-  SHELL='/bin/bash'
-  SHLVL='2'
-  SUDO_COMMAND='/usr/bin/timeout -k 18.1h 18h /usr/bin/ionice -c 3 /usr/bin/nice /usr/sbin/pbuilder --build --configfile /srv/reproducible-results/rbuild-debian/r-b-build.YNHXxEFN/pbuilderrc_Q3tG --distribution unstable --hookdir /etc/pbuilder/first-build-hooks --debbuildopts -b --basetgz /var/cache/pbuilder/unstable-reproducible-base.tgz --buildresult /srv/reproducible-results/rbuild-debian/r-b-build.YNHXxEFN/b1 --logfile b1/build.log golang-github-go-openapi-swag_0.23.0-1.dsc'
-  SUDO_GID='109'
-  SUDO_UID='104'
-  SUDO_USER='jenkins'
-  TERM='unknown'
-  TZ='/usr/share/zoneinfo/Etc/GMT+12'
-  USER='root'
-  _='/usr/bin/systemd-run'
-  http_proxy='http://192.168.101.4:3128'
+  PWD=/
+  SHELL=/bin/bash
+  SHELLOPTS=braceexpand:errexit:hashall:interactive-comments:posix
+  SHLVL=3
+  SUDO_COMMAND='/usr/bin/timeout -k 24.1h 24h /usr/bin/ionice -c 3 /usr/bin/nice -n 11 /usr/bin/unshare --uts -- /usr/sbin/pbuilder --build --configfile /srv/reproducible-results/rbuild-debian/r-b-build.YNHXxEFN/pbuilderrc_tRVp --distribution unstable --hookdir /etc/pbuilder/rebuild-hooks --debbuildopts -b --basetgz /var/cache/pbuilder/unstable-reproducible-base.tgz --buildresult /srv/reproducible-results/rbuild-debian/r-b-build.YNHXxEFN/b2 --logfile b2/build.log golang-github-go-openapi-swag_0.23.0-1.dsc'
+  SUDO_GID=109
+  SUDO_UID=104
+  SUDO_USER=jenkins
+  TERM=unknown
+  TZ=/usr/share/zoneinfo/Etc/GMT-14
+  UID=0
+  USER=root
+  _='I: set'
+  http_proxy=http://192.168.101.4:3128
 I: uname -a
-  Linux codethink01-arm64 6.1.0-28-cloud-arm64 #1 SMP Debian 6.1.119-1 (2024-11-22) aarch64 GNU/Linux
+  Linux i-capture-the-hostname 6.1.0-28-cloud-arm64 #1 SMP Debian 6.1.119-1 (2024-11-22) aarch64 GNU/Linux
 I: ls -l /bin
-  lrwxrwxrwx 1 root root 7 Nov 22  2024 /bin -> usr/bin
-I: user script /srv/workspace/pbuilder/1228666/tmp/hooks/D02_print_environment finished
+  lrwxrwxrwx 1 root root 7 Nov 22 14:40 /bin -> usr/bin
+I: user script /srv/workspace/pbuilder/3420757/tmp/hooks/D02_print_environment finished
  -> Attempting to satisfy build-dependencies
  -> Creating pbuilder-satisfydepends-dummy package
 Package: pbuilder-satisfydepends-dummy
@@ -158,7 +190,7 @@
 Get: 40 http://deb.debian.org/debian unstable/main arm64 golang-github-stretchr-objx-dev all 0.5.2-1 [25.5 kB]
 Get: 41 http://deb.debian.org/debian unstable/main arm64 golang-gopkg-yaml.v3-dev all 3.0.1-3 [74.3 kB]
 Get: 42 http://deb.debian.org/debian unstable/main arm64 golang-github-stretchr-testify-dev all 1.9.0-1 [74.7 kB]
-Fetched 62.4 MB in 1s (71.5 MB/s)
+Fetched 62.4 MB in 0s (202 MB/s)
 debconf: delaying package configuration, since apt-utils is not installed
 Selecting previously unselected package sensible-utils.
 (Reading database ... 
(Reading database ... 5%
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(Reading database ... 85%
(Reading database ... 90%
(Reading database ... 95%
(Reading database ... 100%
(Reading database ... 20086 files and directories currently installed.)
@@ -341,7 +373,11 @@
 Building tag database...
  -> Finished parsing the build-deps
 I: Building the package
-I: Running cd /build/reproducible-path/golang-github-go-openapi-swag-0.23.0/ && env PATH="/usr/sbin:/usr/bin:/sbin:/bin:/usr/games" HOME="/nonexistent/first-build" dpkg-buildpackage -us -uc -b && env PATH="/usr/sbin:/usr/bin:/sbin:/bin:/usr/games" HOME="/nonexistent/first-build" dpkg-genchanges -S  > ../golang-github-go-openapi-swag_0.23.0-1_source.changes
+I: user script /srv/workspace/pbuilder/3420757/tmp/hooks/A99_set_merged_usr starting
+Not re-configuring usrmerge for unstable
+I: user script /srv/workspace/pbuilder/3420757/tmp/hooks/A99_set_merged_usr finished
+hostname: Name or service not known
+I: Running cd /build/reproducible-path/golang-github-go-openapi-swag-0.23.0/ && env PATH="/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/i/capture/the/path" HOME="/nonexistent/second-build" dpkg-buildpackage -us -uc -b && env PATH="/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/i/capture/the/path" HOME="/nonexistent/second-build" dpkg-genchanges -S  > ../golang-github-go-openapi-swag_0.23.0-1_source.changes
 dpkg-buildpackage: info: source package golang-github-go-openapi-swag
 dpkg-buildpackage: info: source version 1:0.23.0-1
 dpkg-buildpackage: info: source distribution unstable
@@ -360,38 +396,38 @@
    dh_auto_configure -O--buildsystem=golang -O--builddirectory=_build
    dh_auto_build -O--buildsystem=golang -O--builddirectory=_build
 	cd _build && go install -trimpath -v -p 12 github.com/go-openapi/swag
-internal/profilerecord
-internal/race
-internal/goarch
 internal/coverage/rtcov
+internal/byteorder
 internal/godebugs
-internal/goexperiment
-sync/atomic
+internal/race
 internal/unsafeheader
-unicode/utf8
+internal/goexperiment
+internal/goarch
+internal/profilerecord
 internal/goos
 unicode
+sync/atomic
+internal/runtime/syscall
 internal/cpu
+unicode/utf8
 cmp
+runtime/internal/math
+internal/abi
 math/bits
 encoding
+internal/chacha8rand
+runtime/internal/sys
 internal/itoa
 internal/asan
 internal/msan
-internal/runtime/syscall
 unicode/utf16
-internal/abi
-internal/byteorder
-runtime/internal/math
-runtime/internal/sys
-math
-log/internal
-internal/chacha8rand
 internal/nettrace
+log/internal
 crypto/internal/alias
 crypto/subtle
 crypto/internal/boring/sig
 container/list
+math
 vendor/golang.org/x/crypto/cryptobyte/asn1
 vendor/golang.org/x/crypto/internal/alias
 internal/bytealg
@@ -400,11 +436,11 @@
 internal/stringslite
 runtime
 internal/reflectlite
-sync
 iter
+sync
 internal/weak
-slices
 maps
+slices
 internal/bisect
 internal/testlog
 github.com/josharian/intern
@@ -412,90 +448,90 @@
 runtime/cgo
 errors
 sort
-internal/godebug
 io
-strconv
 internal/oserror
+strconv
 path
-vendor/golang.org/x/net/dns/dnsmessage
 math/rand/v2
+vendor/golang.org/x/net/dns/dnsmessage
 crypto/internal/edwards25519/field
 crypto/internal/nistec/fiat
-math/rand
+internal/godebug
 syscall
 bytes
 strings
-reflect
-crypto/internal/randutil
 internal/concurrent
 hash
+crypto/internal/randutil
+unique
+math/rand
+hash/crc32
+reflect
+crypto
 crypto/internal/edwards25519
+crypto/md5
+net/netip
 crypto/rc4
-vendor/golang.org/x/text/transform
 crypto/cipher
-unique
-crypto
-hash/crc32
+vendor/golang.org/x/text/transform
 regexp/syntax
 bufio
-crypto/md5
 net/http/internal/ascii
 crypto/internal/boring
 crypto/des
-net/netip
 crypto/aes
 crypto/sha512
 crypto/hmac
 crypto/sha1
 crypto/sha256
 vendor/golang.org/x/crypto/hkdf
-time
-internal/syscall/execenv
 regexp
+time
 internal/syscall/unix
-internal/poll
-context
+internal/syscall/execenv
 io/fs
-internal/filepathlite
-embed
-crypto/internal/nistec
-os
+context
+internal/poll
 encoding/binary
 internal/fmtsort
-crypto/ecdh
+internal/filepathlite
+embed
 encoding/base64
 vendor/golang.org/x/crypto/chacha20
 vendor/golang.org/x/crypto/internal/poly1305
+crypto/internal/nistec
 encoding/pem
+os
 vendor/golang.org/x/crypto/chacha20poly1305
+crypto/ecdh
 fmt
 path/filepath
+net
 vendor/golang.org/x/sys/cpu
 vendor/golang.org/x/crypto/sha3
-net
-encoding/json
-gopkg.in/yaml.v3
 log
 encoding/hex
-math/big
+mime
+encoding/json
 net/url
-mime/quotedprintable
+vendor/golang.org/x/net/http2/hpack
 compress/flate
+math/big
 vendor/golang.org/x/text/unicode/norm
-vendor/golang.org/x/net/http2/hpack
-mime
+gopkg.in/yaml.v3
+mime/quotedprintable
 net/http/internal
 vendor/golang.org/x/text/unicode/bidi
 compress/gzip
 vendor/golang.org/x/text/secure/bidirule
 vendor/golang.org/x/net/idna
 github.com/mailru/easyjson/jlexer
+crypto/internal/boring/bbig
 crypto/rand
-crypto/elliptic
 crypto/internal/bigmod
-crypto/internal/boring/bbig
-encoding/asn1
+crypto/elliptic
 crypto/dsa
+encoding/asn1
 crypto/ed25519
 crypto/internal/hpke
 crypto/internal/mlkem768
@@ -504,9 +540,9 @@
 crypto/x509/pkix
 crypto/ecdsa
 github.com/mailru/easyjson/buffer
+vendor/golang.org/x/net/http/httpproxy
 net/textproto
 crypto/x509
-vendor/golang.org/x/net/http/httpproxy
 github.com/mailru/easyjson/jwriter
 mime/multipart
 vendor/golang.org/x/net/http/httpguts
@@ -647,7 +683,7 @@
 === RUN   TestIssue2350
 --- PASS: TestIssue2350 (0.00s)
 === RUN   TestLoadFromHTTP
---- PASS: TestLoadFromHTTP (0.02s)
+--- PASS: TestLoadFromHTTP (0.01s)
 === RUN   TestLoadHTTPBytes
 --- PASS: TestLoadHTTPBytes (0.00s)
 === RUN   TestLoadStrategy
@@ -713,7 +749,7 @@
 === RUN   TestHighUnicode
 --- PASS: TestHighUnicode (0.00s)
 === RUN   TestToGoName
---- PASS: TestToGoName (0.00s)
+--- PASS: TestToGoName (0.01s)
 === RUN   TestContainsStringsCI
 --- PASS: TestContainsStringsCI (0.00s)
 === RUN   TestContainsStrings
@@ -731,7 +767,7 @@
 === RUN   TestToJSONName
 --- PASS: TestToJSONName (0.00s)
 === RUN   TestIsZero
---- PASS: TestIsZero (0.01s)
+--- PASS: TestIsZero (0.00s)
 === RUN   TestCamelize
 --- PASS: TestCamelize (0.00s)
 === RUN   TestToHumanNameTitle
@@ -755,7 +791,7 @@
 === RUN   TestMapKeyTypes
 --- PASS: TestMapKeyTypes (0.00s)
 PASS
-ok  	github.com/go-openapi/swag	0.092s
+ok  	github.com/go-openapi/swag	0.053s
    create-stamp debian/debhelper-build-stamp
    dh_testroot -O--buildsystem=golang -O--builddirectory=_build
    dh_prep -O--buildsystem=golang -O--builddirectory=_build
@@ -782,12 +818,14 @@
 dpkg-buildpackage: info: binary-only upload (no source included)
 dpkg-genchanges: info: including full source code in upload
 I: copying local configuration
+I: user script /srv/workspace/pbuilder/3420757/tmp/hooks/B01_cleanup starting
+I: user script /srv/workspace/pbuilder/3420757/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/1228666 and its subdirectories
-I: Current time: Wed Jan  7 15:05:12 -12 2026
-I: pbuilder-time-stamp: 1767841512
+I: removing directory /srv/workspace/pbuilder/3420757 and its subdirectories
+I: Current time: Fri Dec  6 10:43:08 +14 2024
+I: pbuilder-time-stamp: 1733431388