Diff of the two buildlogs:

--
--- b1/build.log	2024-12-24 08:33:16.799513801 +0000
+++ b2/build.log	2024-12-24 08:34:07.309216497 +0000
@@ -1,6 +1,6 @@
 I: pbuilder: network access will be disabled during build
-I: Current time: Mon Dec 23 20:32:13 -12 2024
-I: pbuilder-time-stamp: 1735029133
+I: Current time: Tue Jan 27 04:56:19 +14 2026
+I: pbuilder-time-stamp: 1769439379
 I: Building the build Environment
 I: extracting base tarball [/var/cache/pbuilder/trixie-reproducible-base.tgz]
 I: copying local configuration
@@ -28,54 +28,86 @@
 dpkg-source: info: applying 0002-Update-schema-URL-for-new-sarif-version.patch
 I: Not using root during the build.
 I: Installing the build-deps
-I: user script /srv/workspace/pbuilder/47192/tmp/hooks/D02_print_environment starting
+I: user script /srv/workspace/pbuilder/93915/tmp/hooks/D01_modify_environment starting
+debug: Running on ionos6-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
+'/bin/sh' -> '/bin/bash'
+lrwxrwxrwx 1 root root 9 Jan 26 14:56 /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/93915/tmp/hooks/D01_modify_environment finished
+I: user script /srv/workspace/pbuilder/93915/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='i386'
-  DEBIAN_FRONTEND='noninteractive'
-  DEB_BUILD_OPTIONS='buildinfo=+all reproducible=+all parallel=11 '
-  DISTRIBUTION='trixie'
-  HOME='/root'
-  HOST_ARCH='i386'
+  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]="i686-pc-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=i386
+  DEBIAN_FRONTEND=noninteractive
+  DEB_BUILD_OPTIONS='buildinfo=+all reproducible=+all parallel=21 '
+  DIRSTACK=()
+  DISTRIBUTION=trixie
+  EUID=0
+  FUNCNAME=([0]="Echo" [1]="main")
+  GROUPS=()
+  HOME=/root
+  HOSTNAME=i-capture-the-hostname
+  HOSTTYPE=i686
+  HOST_ARCH=i386
   IFS=' 	
   '
-  INVOCATION_ID='ed2df501ec0a46d2a8ec88a65512b37b'
-  LANG='C'
-  LANGUAGE='en_US:en'
-  LC_ALL='C'
-  LD_LIBRARY_PATH='/usr/lib/libeatmydata'
-  LD_PRELOAD='libeatmydata.so'
-  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='47192'
-  PS1='# '
-  PS2='> '
+  INVOCATION_ID=85587efa27f64b0db6d6f0b97fa00b26
+  LANG=C
+  LANGUAGE=de_CH:de
+  LC_ALL=C
+  LD_LIBRARY_PATH=/usr/lib/libeatmydata
+  LD_PRELOAD=libeatmydata.so
+  MACHTYPE=i686-pc-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=93915
   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.aJZHtSeV/pbuilderrc_Xr6t --distribution trixie --hookdir /etc/pbuilder/first-build-hooks --debbuildopts -b --basetgz /var/cache/pbuilder/trixie-reproducible-base.tgz --buildresult /srv/reproducible-results/rbuild-debian/r-b-build.aJZHtSeV/b1 --logfile b1/build.log golang-github-reviewdog-errorformat_0.0~git20240608.1d3280e-1.dsc'
-  SUDO_GID='112'
-  SUDO_UID='107'
-  SUDO_USER='jenkins'
-  TERM='unknown'
-  TZ='/usr/share/zoneinfo/Etc/GMT+12'
-  USER='root'
-  _='/usr/bin/systemd-run'
-  http_proxy='http://46.16.76.132:3128'
+  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.aJZHtSeV/pbuilderrc_fJgP --distribution trixie --hookdir /etc/pbuilder/rebuild-hooks --debbuildopts -b --basetgz /var/cache/pbuilder/trixie-reproducible-base.tgz --buildresult /srv/reproducible-results/rbuild-debian/r-b-build.aJZHtSeV/b2 --logfile b2/build.log golang-github-reviewdog-errorformat_0.0~git20240608.1d3280e-1.dsc'
+  SUDO_GID=112
+  SUDO_UID=107
+  SUDO_USER=jenkins
+  TERM=unknown
+  TZ=/usr/share/zoneinfo/Etc/GMT-14
+  UID=0
+  USER=root
+  _='I: set'
+  http_proxy=http://213.165.73.152:3128
 I: uname -a
-  Linux ionos2-i386 6.1.0-28-amd64 #1 SMP PREEMPT_DYNAMIC Debian 6.1.119-1 (2024-11-22) x86_64 GNU/Linux
+  Linux i-capture-the-hostname 6.1.0-28-amd64 #1 SMP PREEMPT_DYNAMIC Debian 6.1.119-1 (2024-11-22) x86_64 GNU/Linux
 I: ls -l /bin
-  lrwxrwxrwx 1 root root 7 Nov 22 14:40 /bin -> usr/bin
-I: user script /srv/workspace/pbuilder/47192/tmp/hooks/D02_print_environment finished
+  lrwxrwxrwx 1 root root 7 Nov 22  2024 /bin -> usr/bin
+I: user script /srv/workspace/pbuilder/93915/tmp/hooks/D02_print_environment finished
  -> Attempting to satisfy build-dependencies
  -> Creating pbuilder-satisfydepends-dummy package
 Package: pbuilder-satisfydepends-dummy
@@ -156,7 +188,7 @@
 Get: 35 http://deb.debian.org/debian trixie/main i386 golang-any i386 2:1.23~2 [5168 B]
 Get: 36 http://deb.debian.org/debian trixie/main i386 golang-github-haya14busa-go-checkstyle-dev all 0.0~git20170303.5e9d09f-2 [2736 B]
 Get: 37 http://deb.debian.org/debian trixie/main i386 golang-github-haya14busa-go-sarif-dev all 0.0~git20240630.a3ba8d7-1 [19.6 kB]
-Fetched 64.4 MB in 1s (73.5 MB/s)
+Fetched 64.4 MB in 1s (79.9 MB/s)
 debconf: delaying package configuration, since apt-utils is not installed
 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 ... 19953 files and directories currently installed.)
@@ -319,7 +351,11 @@
 Building tag database...
  -> Finished parsing the build-deps
 I: Building the package
-I: Running cd /build/reproducible-path/golang-github-reviewdog-errorformat-0.0~git20240608.1d3280e/ && 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-reviewdog-errorformat_0.0~git20240608.1d3280e-1_source.changes
+I: user script /srv/workspace/pbuilder/93915/tmp/hooks/A99_set_merged_usr starting
+Not re-configuring usrmerge for trixie
+I: user script /srv/workspace/pbuilder/93915/tmp/hooks/A99_set_merged_usr finished
+hostname: Name or service not known
+I: Running cd /build/reproducible-path/golang-github-reviewdog-errorformat-0.0~git20240608.1d3280e/ && 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-reviewdog-errorformat_0.0~git20240608.1d3280e-1_source.changes
 dpkg-buildpackage: info: source package golang-github-reviewdog-errorformat
 dpkg-buildpackage: info: source version 0.0~git20240608.1d3280e-1
 dpkg-buildpackage: info: source distribution unstable
@@ -337,37 +373,37 @@
    dh_autoreconf -O--builddirectory=_build -O--buildsystem=golang
    dh_auto_configure -O--builddirectory=_build -O--buildsystem=golang
    dh_auto_build -O--builddirectory=_build -O--buildsystem=golang
-	cd _build && go install -trimpath -v -p 11 github.com/reviewdog/errorformat github.com/reviewdog/errorformat/fmts github.com/reviewdog/errorformat/writer
-internal/unsafeheader
+	cd _build && go install -trimpath -v -p 21 github.com/reviewdog/errorformat github.com/reviewdog/errorformat/fmts github.com/reviewdog/errorformat/writer
 internal/byteorder
+math/bits
+cmp
+internal/asan
+internal/itoa
+internal/coverage/rtcov
+encoding
+internal/goos
 internal/godebugs
+internal/unsafeheader
+internal/race
+internal/goarch
+internal/msan
+unicode/utf8
 internal/profilerecord
-internal/goexperiment
-internal/goos
-internal/coverage/rtcov
 internal/runtime/syscall
-internal/goarch
+sync/atomic
+internal/goexperiment
+unicode
 internal/cpu
 internal/runtime/atomic
-internal/race
-runtime/internal/math
-internal/abi
+unicode/utf16
 runtime/internal/sys
-sync/atomic
-unicode
-unicode/utf8
 internal/chacha8rand
+internal/abi
+runtime/internal/math
+math
 internal/bytealg
 internal/runtime/exithook
-cmp
-internal/itoa
-math/bits
 internal/stringslite
-internal/asan
-internal/msan
-encoding
-unicode/utf16
-math
 runtime
 iter
 internal/reflectlite
@@ -377,42 +413,42 @@
 internal/bisect
 errors
 sort
-internal/godebug
 io
 internal/oserror
 path
 strconv
+internal/godebug
 syscall
 bytes
 strings
 reflect
 bufio
 regexp/syntax
-regexp
 internal/syscall/execenv
 internal/syscall/unix
 time
+regexp
 io/fs
 internal/poll
+internal/filepathlite
 internal/fmtsort
 encoding/binary
-internal/filepathlite
 os
 encoding/base64
 path/filepath
 fmt
-github.com/reviewdog/errorformat/fmts
-text/template/parse
-encoding/xml
-encoding/json
 github.com/reviewdog/errorformat
+text/template/parse
+github.com/reviewdog/errorformat/fmts
 net/url
+encoding/json
+encoding/xml
 text/template
 github.com/haya14busa/go-checkstyle/checkstyle
 github.com/haya14busa/go-sarif/sarif
 github.com/reviewdog/errorformat/writer
    dh_auto_test -O--builddirectory=_build -O--buildsystem=golang
-	cd _build && go test -vet=off -v -p 11 github.com/reviewdog/errorformat github.com/reviewdog/errorformat/fmts github.com/reviewdog/errorformat/writer
+	cd _build && go test -vet=off -v -p 21 github.com/reviewdog/errorformat github.com/reviewdog/errorformat/fmts github.com/reviewdog/errorformat/writer
 === RUN   TestScanner_Scan
 --- PASS: TestScanner_Scan (0.00s)
 === RUN   TestEntry_Types
@@ -422,60 +458,60 @@
 === RUN   ExampleErrorformat
 --- PASS: ExampleErrorformat (0.00s)
 PASS
-ok  	github.com/reviewdog/errorformat	0.007s
+ok  	github.com/reviewdog/errorformat	0.004s
 === RUN   TestFmts
-    fmt_test.go:20: go-consistent
-    fmt_test.go:20: puppet-lint
-    fmt_test.go:20: erb-lint
-    fmt_test.go:20: standardrb
+    fmt_test.go:20: remark-lint
+    fmt_test.go:20: psalm
+    fmt_test.go:20: pep8
+    fmt_test.go:20: reek
     fmt_test.go:20: scalastyle
-    fmt_test.go:20: slim-lint
-    fmt_test.go:20: tslint
-    fmt_test.go:20: stylelint
+    fmt_test.go:20: misspell
+    fmt_test.go:20: msbuild
     fmt_test.go:20: eslint
-    fmt_test.go:20: rubocop
-    fmt_test.go:20: golint
-    fmt_test.go:20: staticcheck
-    fmt_test.go:20: fasterer
-    fmt_test.go:20: sbt
+    fmt_test.go:20: slim-lint
+    fmt_test.go:20: yamllint
+    fmt_test.go:20: scalac
     fmt_test.go:20: tsc
-    fmt_test.go:20: haml-lint
-    fmt_test.go:20: protolint
-    fmt_test.go:20: flake8
-    fmt_test.go:20: bandit
-    fmt_test.go:20: clippy
-    fmt_test.go:20: dotnet
-    fmt_test.go:20: dotenv-linter
     fmt_test.go:20: govet
-    fmt_test.go:20: hlint
-    fmt_test.go:20: eslint-compact
-    fmt_test.go:20: pydocstyle
-    fmt_test.go:20: sorbet
+    fmt_test.go:20: brakeman
     fmt_test.go:20: cargo-check
-    fmt_test.go:20: scalac
-    fmt_test.go:20: misspell
+    fmt_test.go:20: sbt
+    fmt_test.go:20: sbt-scalastyle
     fmt_test.go:20: typos
+    fmt_test.go:20: phpstan
+    fmt_test.go:20: buf
+    fmt_test.go:20: go-consistent
+    fmt_test.go:20: hlint
     fmt_test.go:20: luacheck
-    fmt_test.go:20: isort
-    fmt_test.go:20: brakeman
-    fmt_test.go:20: ansible-lint
+    fmt_test.go:20: clippy
+    fmt_test.go:20: stylelint
+    fmt_test.go:20: golint
     fmt_test.go:20: golangci-lint
-    fmt_test.go:20: gosec
+    fmt_test.go:20: dotenv-linter
+    fmt_test.go:20: puppet-lint
+    fmt_test.go:20: isort
+    fmt_test.go:20: eslint-compact
     fmt_test.go:20: standardjs
+    fmt_test.go:20: protolint
+    fmt_test.go:20: erb-lint
+    fmt_test.go:20: fasterer
+    fmt_test.go:20: dotnet
+    fmt_test.go:20: gosec
+    fmt_test.go:20: haml-lint
     fmt_test.go:20: mypy
-    fmt_test.go:20: reek
-    fmt_test.go:20: yamllint
-    fmt_test.go:20: msbuild
-    fmt_test.go:20: remark-lint
-    fmt_test.go:20: phpstan
-    fmt_test.go:20: psalm
-    fmt_test.go:20: buf
-    fmt_test.go:20: pep8
+    fmt_test.go:20: bandit
+    fmt_test.go:20: tslint
+    fmt_test.go:20: ansible-lint
+    fmt_test.go:20: staticcheck
     fmt_test.go:20: black
-    fmt_test.go:20: sbt-scalastyle
---- PASS: TestFmts (0.24s)
+    fmt_test.go:20: sorbet
+    fmt_test.go:20: standardrb
+    fmt_test.go:20: flake8
+    fmt_test.go:20: pydocstyle
+    fmt_test.go:20: rubocop
+--- PASS: TestFmts (0.08s)
 PASS
-ok  	github.com/reviewdog/errorformat/fmts	0.245s
+ok  	github.com/reviewdog/errorformat/fmts	0.085s
 === RUN   ExampleCheckStyle
 --- PASS: ExampleCheckStyle (0.00s)
 === RUN   ExampleJSONL
@@ -487,7 +523,7 @@
 === RUN   ExampleTemplate_more
 --- PASS: ExampleTemplate_more (0.00s)
 PASS
-ok  	github.com/reviewdog/errorformat/writer	0.008s
+ok  	github.com/reviewdog/errorformat/writer	0.005s
    create-stamp debian/debhelper-build-stamp
    dh_testroot -O--builddirectory=_build -O--buildsystem=golang
    dh_prep -O--builddirectory=_build -O--buildsystem=golang
@@ -515,12 +551,14 @@
 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/93915/tmp/hooks/B01_cleanup starting
+I: user script /srv/workspace/pbuilder/93915/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/47192 and its subdirectories
-I: Current time: Mon Dec 23 20:33:16 -12 2024
-I: pbuilder-time-stamp: 1735029196
+I: removing directory /srv/workspace/pbuilder/93915 and its subdirectories
+I: Current time: Tue Jan 27 04:57:04 +14 2026
+I: pbuilder-time-stamp: 1769439424