Diff of the two buildlogs:

--
--- b1/build.log	2024-12-27 05:57:53.547236473 +0000
+++ b2/build.log	2024-12-27 06:13:20.557015922 +0000
@@ -1,6 +1,6 @@
 I: pbuilder: network access will be disabled during build
-I: Current time: Thu Dec 26 17:52:59 -12 2024
-I: pbuilder-time-stamp: 1735278779
+I: Current time: Fri Dec 27 19:58:06 +14 2024
+I: pbuilder-time-stamp: 1735279086
 I: Building the build Environment
 I: extracting base tarball [/var/cache/pbuilder/unstable-reproducible-base.tgz]
 I: copying local configuration
@@ -22,52 +22,84 @@
 dpkg-source: info: unpacking golang-github-gorilla-sessions_1.2.1-1.debian.tar.xz
 I: Not using root during the build.
 I: Installing the build-deps
-I: user script /srv/workspace/pbuilder/31440/tmp/hooks/D02_print_environment starting
+I: user script /srv/workspace/pbuilder/27112/tmp/hooks/D01_modify_environment starting
+debug: Running on cbxi4a.
+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 27 05:59 /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/27112/tmp/hooks/D01_modify_environment finished
+I: user script /srv/workspace/pbuilder/27112/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='armhf'
-  DEBIAN_FRONTEND='noninteractive'
-  DEB_BUILD_OPTIONS='buildinfo=+all reproducible=+all parallel=3 '
-  DISTRIBUTION='unstable'
-  HOME='/root'
-  HOST_ARCH='armhf'
+  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]="arm-unknown-linux-gnueabihf")
+  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=armhf
+  DEBIAN_FRONTEND=noninteractive
+  DEB_BUILD_OPTIONS='buildinfo=+all reproducible=+all parallel=4 '
+  DIRSTACK=()
+  DISTRIBUTION=unstable
+  EUID=0
+  FUNCNAME=([0]="Echo" [1]="main")
+  GROUPS=()
+  HOME=/root
+  HOSTNAME=i-capture-the-hostname
+  HOSTTYPE=arm
+  HOST_ARCH=armhf
   IFS=' 	
   '
-  INVOCATION_ID='eeff6029bb044f8fa13bef45bcf636be'
-  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='31440'
-  PS1='# '
-  PS2='> '
+  INVOCATION_ID=4914591816804bf39da18587cfab0f0f
+  LANG=C
+  LANGUAGE=it_CH:it
+  LC_ALL=C
+  MACHTYPE=arm-unknown-linux-gnueabihf
+  MAIL=/var/mail/root
+  OPTERR=1
+  OPTIND=1
+  OSTYPE=linux-gnueabihf
+  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=27112
   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.lSXBEiMG/pbuilderrc_7GIq --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.lSXBEiMG/b1 --logfile b1/build.log golang-github-gorilla-sessions_1.2.1-1.dsc'
-  SUDO_GID='113'
-  SUDO_UID='107'
-  SUDO_USER='jenkins'
-  TERM='unknown'
-  TZ='/usr/share/zoneinfo/Etc/GMT+12'
-  USER='root'
-  _='/usr/bin/systemd-run'
-  http_proxy='http://10.0.0.15:3142/'
+  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.lSXBEiMG/pbuilderrc_PVJR --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.lSXBEiMG/b2 --logfile b2/build.log golang-github-gorilla-sessions_1.2.1-1.dsc'
+  SUDO_GID=113
+  SUDO_UID=107
+  SUDO_USER=jenkins
+  TERM=unknown
+  TZ=/usr/share/zoneinfo/Etc/GMT-14
+  UID=0
+  USER=root
+  _='I: set'
+  http_proxy=http://10.0.0.15:3142/
 I: uname -a
-  Linux virt64b 6.1.0-28-arm64 #1 SMP Debian 6.1.119-1 (2024-11-22) aarch64 GNU/Linux
+  Linux i-capture-the-hostname 6.1.0-23-armmp #1 SMP Debian 6.1.99-1 (2024-07-15) armv7l GNU/Linux
 I: ls -l /bin
   lrwxrwxrwx 1 root root 7 Nov 22 14:40 /bin -> usr/bin
-I: user script /srv/workspace/pbuilder/31440/tmp/hooks/D02_print_environment finished
+I: user script /srv/workspace/pbuilder/27112/tmp/hooks/D02_print_environment finished
  -> Attempting to satisfy build-dependencies
  -> Creating pbuilder-satisfydepends-dummy package
 Package: pbuilder-satisfydepends-dummy
@@ -146,7 +178,7 @@
 Get: 35 http://deb.debian.org/debian unstable/main armhf golang-go armhf 2:1.23~2 [44.3 kB]
 Get: 36 http://deb.debian.org/debian unstable/main armhf golang-any armhf 2:1.23~2 [5172 B]
 Get: 37 http://deb.debian.org/debian unstable/main armhf golang-github-gorilla-securecookie-dev all 1.1.2-1 [14.0 kB]
-Fetched 62.4 MB in 6s (10.2 MB/s)
+Fetched 62.4 MB in 12s (5099 kB/s)
 Preconfiguring packages ...
 Selecting previously unselected package sensible-utils.
 (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 ... 19572 files and directories currently installed.)
@@ -309,7 +341,11 @@
 Building tag database...
  -> Finished parsing the build-deps
 I: Building the package
-I: Running cd /build/reproducible-path/golang-github-gorilla-sessions-1.2.1/ && 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-gorilla-sessions_1.2.1-1_source.changes
+I: user script /srv/workspace/pbuilder/27112/tmp/hooks/A99_set_merged_usr starting
+Not re-configuring usrmerge for unstable
+I: user script /srv/workspace/pbuilder/27112/tmp/hooks/A99_set_merged_usr finished
+hostname: Name or service not known
+I: Running cd /build/reproducible-path/golang-github-gorilla-sessions-1.2.1/ && 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-gorilla-sessions_1.2.1-1_source.changes
 dpkg-buildpackage: info: source package golang-github-gorilla-sessions
 dpkg-buildpackage: info: source version 1.2.1-1
 dpkg-buildpackage: info: source distribution unstable
@@ -327,16 +363,16 @@
    dh_autoreconf -O--buildsystem=golang
    dh_auto_configure -O--buildsystem=golang
    dh_auto_build -O--buildsystem=golang
-	cd obj-arm-linux-gnueabihf && go install -trimpath -v -p 3 github.com/gorilla/sessions
-internal/goarch
+	cd obj-arm-linux-gnueabihf && go install -trimpath -v -p 4 github.com/gorilla/sessions
 internal/unsafeheader
+internal/goarch
 internal/byteorder
 internal/cpu
+internal/coverage/rtcov
 internal/abi
 internal/chacha8rand
-internal/bytealg
-internal/coverage/rtcov
 internal/godebugs
+internal/bytealg
 internal/goexperiment
 internal/goos
 internal/profilerecord
@@ -344,21 +380,20 @@
 internal/runtime/syscall
 internal/stringslite
 runtime/internal/math
-internal/runtime/exithook
 runtime/internal/sys
 internal/race
 sync/atomic
 internal/asan
 internal/itoa
 internal/msan
+internal/runtime/exithook
 cmp
 math/bits
 unicode/utf8
-runtime
 unicode
-math
 encoding
 crypto/internal/alias
+math
 crypto/internal/boring/sig
 unicode/utf16
 container/list
@@ -366,103 +401,104 @@
 vendor/golang.org/x/crypto/internal/alias
 internal/nettrace
 log/internal
+runtime
+iter
+crypto/subtle
 internal/reflectlite
 sync
-iter
 slices
-crypto/subtle
 internal/weak
 maps
-internal/bisect
 internal/testlog
 internal/singleflight
+internal/bisect
 runtime/cgo
-internal/godebug
 errors
+internal/godebug
 internal/oserror
+sort
 io
 syscall
 strconv
-encoding/base32
 bytes
-time
+encoding/base32
 strings
-bufio
 reflect
+bufio
+time
 path
-context
-io/fs
 internal/syscall/unix
-internal/poll
-internal/filepathlite
 internal/syscall/execenv
 internal/saferio
-os
 crypto/cipher
 hash
+crypto/internal/randutil
 crypto
+math/rand
 crypto/internal/boring
 crypto/aes
 crypto/hmac
-crypto/internal/randutil
-math/rand
 crypto/sha256
-io/ioutil
-sort
-encoding/binary
-internal/fmtsort
-fmt
 hash/crc32
 crypto/des
-encoding/base64
 crypto/internal/edwards25519/field
-crypto/sha512
 crypto/internal/nistec/fiat
-encoding/gob
-math/big
-encoding/json
-crypto/rand
-compress/flate
-crypto/internal/nistec
-compress/gzip
-crypto/internal/bigmod
-github.com/gorilla/securecookie
-crypto/internal/boring/bbig
-encoding/asn1
-crypto/ecdh
-crypto/elliptic
+context
+io/fs
+internal/poll
+internal/filepathlite
+crypto/sha512
+os
 crypto/internal/edwards25519
+encoding/binary
+internal/fmtsort
+vendor/golang.org/x/crypto/hkdf
+encoding/base64
 vendor/golang.org/x/crypto/chacha20
 vendor/golang.org/x/crypto/internal/poly1305
-vendor/golang.org/x/crypto/cryptobyte
-vendor/golang.org/x/crypto/chacha20poly1305
-vendor/golang.org/x/crypto/hkdf
-crypto/ed25519
-crypto/internal/hpke
-vendor/golang.org/x/sys/cpu
 crypto/md5
-vendor/golang.org/x/crypto/sha3
-crypto/ecdsa
+vendor/golang.org/x/crypto/chacha20poly1305
 crypto/rc4
-crypto/rsa
-crypto/internal/mlkem768
 crypto/sha1
-crypto/dsa
-encoding/hex
-crypto/x509/pkix
 encoding/pem
 vendor/golang.org/x/net/dns/dnsmessage
+fmt
+io/ioutil
+vendor/golang.org/x/sys/cpu
+vendor/golang.org/x/crypto/sha3
+crypto/internal/nistec
 math/rand/v2
-net/url
+path/filepath
 internal/concurrent
 unique
+encoding/gob
+math/big
+encoding/json
+compress/flate
+compress/gzip
+crypto/ecdh
+encoding/hex
 net/netip
-path/filepath
+net/url
 vendor/golang.org/x/text/transform
+crypto/rand
+crypto/elliptic
+crypto/internal/bigmod
+github.com/gorilla/securecookie
+crypto/internal/boring/bbig
+encoding/asn1
+crypto/ed25519
+crypto/internal/hpke
+crypto/internal/mlkem768
+crypto/rsa
+crypto/dsa
+net
 log
 vendor/golang.org/x/text/unicode/norm
 vendor/golang.org/x/text/unicode/bidi
-net
+vendor/golang.org/x/crypto/cryptobyte
+crypto/x509/pkix
+crypto/ecdsa
 vendor/golang.org/x/text/secure/bidirule
 vendor/golang.org/x/net/http2/hpack
 vendor/golang.org/x/net/idna
@@ -480,13 +516,13 @@
 net/http
 github.com/gorilla/sessions
    dh_auto_test -O--buildsystem=golang
-	cd obj-arm-linux-gnueabihf && go test -vet=off -v -p 3 github.com/gorilla/sessions
+	cd obj-arm-linux-gnueabihf && go test -vet=off -v -p 4 github.com/gorilla/sessions
 === RUN   TestNewCookieFromOptionsSameSite
 --- PASS: TestNewCookieFromOptionsSameSite (0.00s)
 === RUN   TestNewCookieFromOptions
 --- PASS: TestNewCookieFromOptions (0.00s)
 === RUN   TestFlashes
---- PASS: TestFlashes (0.00s)
+--- PASS: TestFlashes (0.01s)
 === RUN   TestCookieStoreMapPanic
 --- PASS: TestCookieStoreMapPanic (0.00s)
 === RUN   TestGH8CookieStore
@@ -494,13 +530,13 @@
 === RUN   TestGH8FilesystemStore
 --- PASS: TestGH8FilesystemStore (0.00s)
 === RUN   TestGH2MaxLength
---- PASS: TestGH2MaxLength (0.00s)
+--- PASS: TestGH2MaxLength (0.01s)
 === RUN   TestGH8FilesystemStoreDelete
 --- PASS: TestGH8FilesystemStoreDelete (0.00s)
 === RUN   TestGH8FilesystemStoreDelete2
 --- PASS: TestGH8FilesystemStoreDelete2 (0.00s)
 PASS
-ok  	github.com/gorilla/sessions	0.018s
+ok  	github.com/gorilla/sessions	0.082s
    create-stamp debian/debhelper-build-stamp
    dh_testroot -O--buildsystem=golang
    dh_prep -O--buildsystem=golang
@@ -528,12 +564,14 @@
 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/27112/tmp/hooks/B01_cleanup starting
+I: user script /srv/workspace/pbuilder/27112/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/31440 and its subdirectories
-I: Current time: Thu Dec 26 17:57:49 -12 2024
-I: pbuilder-time-stamp: 1735279069
+I: removing directory /srv/workspace/pbuilder/27112 and its subdirectories
+I: Current time: Fri Dec 27 20:13:16 +14 2024
+I: pbuilder-time-stamp: 1735279996