Diff of the two buildlogs:

--
--- b1/build.log	2025-03-06 01:45:11.118424698 +0000
+++ b2/build.log	2025-03-06 01:48:15.642120868 +0000
@@ -1,6 +1,6 @@
 I: pbuilder: network access will be disabled during build
-I: Current time: Tue Apr  7 20:07:30 -12 2026
-I: pbuilder-time-stamp: 1775635650
+I: Current time: Thu Mar  6 15:45:13 +14 2025
+I: pbuilder-time-stamp: 1741225513
 I: Building the build Environment
 I: extracting base tarball [/var/cache/pbuilder/unstable-reproducible-base.tgz]
 I: copying local configuration
@@ -24,52 +24,84 @@
 dpkg-source: info: applying 01_add_CPPFLAGS.patch
 I: using fakeroot in build.
 I: Installing the build-deps
-I: user script /srv/workspace/pbuilder/2473928/tmp/hooks/D02_print_environment starting
+I: user script /srv/workspace/pbuilder/54462/tmp/hooks/D01_modify_environment starting
+debug: Running on ionos1-amd64.
+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 Mar  6 01:45 /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/54462/tmp/hooks/D01_modify_environment finished
+I: user script /srv/workspace/pbuilder/54462/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='amd64'
-  DEBIAN_FRONTEND='noninteractive'
-  DEB_BUILD_OPTIONS='buildinfo=+all reproducible=+all parallel=42 '
-  DISTRIBUTION='unstable'
-  HOME='/root'
-  HOST_ARCH='amd64'
+  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]="x86_64-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=amd64
+  DEBIAN_FRONTEND=noninteractive
+  DEB_BUILD_OPTIONS='buildinfo=+all reproducible=+all parallel=20 '
+  DIRSTACK=()
+  DISTRIBUTION=unstable
+  EUID=0
+  FUNCNAME=([0]="Echo" [1]="main")
+  GROUPS=()
+  HOME=/root
+  HOSTNAME=i-capture-the-hostname
+  HOSTTYPE=x86_64
+  HOST_ARCH=amd64
   IFS=' 	
   '
-  INVOCATION_ID='944c912d6e0d47669dac773dc89b805f'
-  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='2473928'
-  PS1='# '
-  PS2='> '
+  INVOCATION_ID=15032eab9a8e4bc4a9e5383249fbaa28
+  LANG=C
+  LANGUAGE=et_EE:et
+  LC_ALL=C
+  MACHTYPE=x86_64-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=54462
   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.Kp1160MM/pbuilderrc_WRns --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.Kp1160MM/b1 --logfile b1/build.log libretro-beetle-vb_0.9.36.1+git20160623-2.dsc'
-  SUDO_GID='111'
-  SUDO_UID='106'
-  SUDO_USER='jenkins'
-  TERM='unknown'
-  TZ='/usr/share/zoneinfo/Etc/GMT+12'
-  USER='root'
-  _='/usr/bin/systemd-run'
-  http_proxy='http://213.165.73.152:3128'
+  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.Kp1160MM/pbuilderrc_YTCP --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.Kp1160MM/b2 --logfile b2/build.log libretro-beetle-vb_0.9.36.1+git20160623-2.dsc'
+  SUDO_GID=110
+  SUDO_UID=105
+  SUDO_USER=jenkins
+  TERM=unknown
+  TZ=/usr/share/zoneinfo/Etc/GMT-14
+  UID=0
+  USER=root
+  _='I: set'
+  http_proxy=http://46.16.76.132:3128
 I: uname -a
-  Linux ionos15-amd64 6.12.12+bpo-amd64 #1 SMP PREEMPT_DYNAMIC Debian 6.12.12-1~bpo12+1 (2025-02-23) x86_64 GNU/Linux
+  Linux i-capture-the-hostname 6.1.0-31-amd64 #1 SMP PREEMPT_DYNAMIC Debian 6.1.128-1 (2025-02-07) x86_64 GNU/Linux
 I: ls -l /bin
-  lrwxrwxrwx 1 root root 7 Nov 22  2024 /bin -> usr/bin
-I: user script /srv/workspace/pbuilder/2473928/tmp/hooks/D02_print_environment finished
+  lrwxrwxrwx 1 root root 7 Mar  4 11:20 /bin -> usr/bin
+I: user script /srv/workspace/pbuilder/54462/tmp/hooks/D02_print_environment finished
  -> Attempting to satisfy build-dependencies
  -> Creating pbuilder-satisfydepends-dummy package
 Package: pbuilder-satisfydepends-dummy
@@ -138,7 +170,7 @@
 Get: 29 http://deb.debian.org/debian unstable/main amd64 po-debconf all 1.0.21+nmu1 [248 kB]
 Get: 30 http://deb.debian.org/debian unstable/main amd64 debhelper all 13.24.1 [920 kB]
 Get: 31 http://deb.debian.org/debian unstable/main amd64 dh-exec amd64 0.30 [25.6 kB]
-Fetched 20.6 MB in 0s (95.7 MB/s)
+Fetched 20.6 MB in 4s (4983 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 ... 19783 files and directories currently installed.)
@@ -282,7 +314,11 @@
 fakeroot is already the newest version (1.37-1).
 0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
 I: Building the package
-I: Running cd /build/reproducible-path/libretro-beetle-vb-0.9.36.1+git20160623/ && 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  > ../libretro-beetle-vb_0.9.36.1+git20160623-2_source.changes
+I: user script /srv/workspace/pbuilder/54462/tmp/hooks/A99_set_merged_usr starting
+Not re-configuring usrmerge for unstable
+I: user script /srv/workspace/pbuilder/54462/tmp/hooks/A99_set_merged_usr finished
+hostname: Name or service not known
+I: Running cd /build/reproducible-path/libretro-beetle-vb-0.9.36.1+git20160623/ && 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  > ../libretro-beetle-vb_0.9.36.1+git20160623-2_source.changes
 dpkg-buildpackage: info: source package libretro-beetle-vb
 dpkg-buildpackage: info: source version 0.9.36.1+git20160623-2
 dpkg-buildpackage: info: source distribution unstable
@@ -294,7 +330,7 @@
 dh: warning: Compatibility levels before 10 are deprecated (level 9 in use)
    dh_auto_clean -O--parallel
 dh_auto_clean: warning: Compatibility levels before 10 are deprecated (level 9 in use)
-	make -j42 clean
+	make -j20 clean
 make[1]: Entering directory '/build/reproducible-path/libretro-beetle-vb-0.9.36.1+git20160623'
 rm -f mednafen_vb_libretro.so ./mednafen/vb/input.o ./mednafen/vb/timer.o ./mednafen/vb/vip.o ./mednafen/vb/vsu.o ./mednafen/hw_cpu/v810/v810_cpu.o ./mednafen/sound/Blip_Buffer.o ./mednafen/mednafen.o ./mednafen/settings.o ./mednafen/state.o ./mednafen/mempatcher.o ./mednafen/file.o ./mednafen/video/surface.o ./libretro.o ./mednafen/hw_cpu/v810/fpu-new/softfloat.o ./mednafen/general.o ./mednafen/mednafen-endian.o
 make[1]: Leaving directory '/build/reproducible-path/libretro-beetle-vb-0.9.36.1+git20160623'
@@ -308,7 +344,7 @@
 dh_auto_configure: warning: Compatibility levels before 10 are deprecated (level 9 in use)
    dh_auto_build -O--parallel
 dh_auto_build: warning: Compatibility levels before 10 are deprecated (level 9 in use)
-	make -j42
+	make -j20
 make[1]: Entering directory '/build/reproducible-path/libretro-beetle-vb-0.9.36.1+git20160623'
 g++ -c -o mednafen/vb/input.o mednafen/vb/input.cpp -Wdate-time -D_FORTIFY_SOURCE=2 -g -O2 -ffile-prefix-map=/build/reproducible-path/libretro-beetle-vb-0.9.36.1+git20160623=. -fstack-protector-strong -fstack-clash-protection -Wformat -Werror=format-security -fcf-protection  -DHAVE_MKDIR -DWANT_32BPP -DWANT_NEW_API -DWANT_STEREO_SOUND -DFRONTEND_SUPPORTS_RGB565 -O2 -g -fPIC  -I. -I./mednafen -I./mednafen/include -I./mednafen/intl -I./mednafen/hw_sound -I./mednafen/hw_cpu -I./mednafen/hw_misc  -DSIZEOF_DOUBLE=8 -Wall -Wno-sign-compare -Wno-unused-variable -Wno-unused-function -Wno-uninitialized  -Wno-strict-aliasing -DMEDNAFEN_VERSION=\"0.9.31\" -DPACKAGE=\"mednafen\" -DMEDNAFEN_VERSION_NUMERIC=931 -DPSS_STYLE=1 -DMPC_FIXED_POINT -DWANT_VB_EMU -DSTDC_HEADERS -D__STDC_LIMIT_MACROS -D__LIBRETRO__ -D_LOW_ACCURACY_  
 g++ -c -o mednafen/vb/timer.o mednafen/vb/timer.cpp -Wdate-time -D_FORTIFY_SOURCE=2 -g -O2 -ffile-prefix-map=/build/reproducible-path/libretro-beetle-vb-0.9.36.1+git20160623=. -fstack-protector-strong -fstack-clash-protection -Wformat -Werror=format-security -fcf-protection  -DHAVE_MKDIR -DWANT_32BPP -DWANT_NEW_API -DWANT_STEREO_SOUND -DFRONTEND_SUPPORTS_RGB565 -O2 -g -fPIC  -I. -I./mednafen -I./mednafen/include -I./mednafen/intl -I./mednafen/hw_sound -I./mednafen/hw_cpu -I./mednafen/hw_misc  -DSIZEOF_DOUBLE=8 -Wall -Wno-sign-compare -Wno-unused-variable -Wno-unused-function -Wno-uninitialized  -Wno-strict-aliasing -DMEDNAFEN_VERSION=\"0.9.31\" -DPACKAGE=\"mednafen\" -DMEDNAFEN_VERSION_NUMERIC=931 -DPSS_STYLE=1 -DMPC_FIXED_POINT -DWANT_VB_EMU -DSTDC_HEADERS -D__STDC_LIMIT_MACROS -D__LIBRETRO__ -D_LOW_ACCURACY_  
@@ -334,40 +370,16 @@
 mednafen/hw_cpu/v810/fpu-new/softfloat.c:1929:17: warning: variable 'bSign' set but not used [-Wunused-but-set-variable]
  1929 |     flag aSign, bSign, zSign;
       |                 ^~~~~
-mednafen/video/surface.cpp: In constructor 'MDFN_Surface::MDFN_Surface()':
-mednafen/video/surface.cpp:54:10: warning: 'void* memset(void*, int, size_t)' clearing an object of non-trivial type 'class MDFN_PixelFormat'; use assignment or value-initialization instead [-Wclass-memaccess]
-   54 |    memset(&format, 0, sizeof(format));
-      |    ~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~
-In file included from mednafen/video/../git.h:13,
-                 from mednafen/video/../mednafen.h:12,
-                 from mednafen/video/surface.cpp:18:
-mednafen/video/../video/surface.h:53:7: note: 'class MDFN_PixelFormat' declared here
-   53 | class MDFN_PixelFormat
-      |       ^~~~~~~~~~~~~~~~
 In file included from mednafen/hw_cpu/v810/v810_cpu.cpp:618:
 mednafen/hw_cpu/v810/v810_oploop.inc: In member function 'void V810::Run_Accurate(int32 (*)(v810_timestamp_t))':
 mednafen/hw_cpu/v810/v810_oploop.inc:27:35: warning: ISO C++17 does not allow 'register' storage class specifier [-Wregister]
    27 |         register v810_timestamp_t timestamp_rl = v810_timestamp;
       |                                   ^~~~~~~~~~~~
-libretro.cpp: In function 'bool retro_load_game(const retro_game_info*)':
-libretro.cpp:2639:10: warning: 'void* memset(void*, int, size_t)' clearing an object of non-trivial type 'class MDFN_PixelFormat'; use assignment or value-initialization instead [-Wclass-memaccess]
- 2639 |    memset(&last_pixel_format, 0, sizeof(MDFN_PixelFormat));
-      |    ~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-In file included from mednafen/git.h:13,
-                 from mednafen/mednafen.h:12,
-                 from libretro.cpp:1:
-mednafen/video/surface.h:53:7: note: 'class MDFN_PixelFormat' declared here
-   53 | class MDFN_PixelFormat
-      |       ^~~~~~~~~~~~~~~~
 In file included from mednafen/hw_cpu/v810/v810_cpu.cpp:676:
 mednafen/hw_cpu/v810/v810_oploop.inc: In member function 'void V810::Run_Fast(int32 (*)(v810_timestamp_t))':
 mednafen/hw_cpu/v810/v810_oploop.inc:27:35: warning: ISO C++17 does not allow 'register' storage class specifier [-Wregister]
    27 |         register v810_timestamp_t timestamp_rl = v810_timestamp;
       |                                   ^~~~~~~~~~~~
-mednafen/file.cpp: In member function 'bool MDFNFILE::MakeMemWrapAndClose(void*)':
-mednafen/file.cpp:42:11: warning: ignoring return value of 'size_t fread(void*, size_t, size_t, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
-   42 |    ::fread(f_data, 1, f_size, (FILE *)fp);
-      |    ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 mednafen/mednafen.cpp: In function 'void MDFN_printf(const char*, ...)':
 mednafen/mednafen.cpp:215:8: warning: 'void free(void*)' called on pointer returned from a mismatched allocation function [-Wmismatched-new-delete]
   215 |    free(temp);
@@ -389,6 +401,30 @@
 mednafen/mednafen.cpp:243:22: note: returned from 'void* operator new [](std::size_t)'
   243 |  temp = new char[4096];
       |                      ^
+mednafen/video/surface.cpp: In constructor 'MDFN_Surface::MDFN_Surface()':
+mednafen/video/surface.cpp:54:10: warning: 'void* memset(void*, int, size_t)' clearing an object of non-trivial type 'class MDFN_PixelFormat'; use assignment or value-initialization instead [-Wclass-memaccess]
+   54 |    memset(&format, 0, sizeof(format));
+      |    ~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~
+In file included from mednafen/video/../git.h:13,
+                 from mednafen/video/../mednafen.h:12,
+                 from mednafen/video/surface.cpp:18:
+mednafen/video/../video/surface.h:53:7: note: 'class MDFN_PixelFormat' declared here
+   53 | class MDFN_PixelFormat
+      |       ^~~~~~~~~~~~~~~~
+mednafen/file.cpp: In member function 'bool MDFNFILE::MakeMemWrapAndClose(void*)':
+mednafen/file.cpp:42:11: warning: ignoring return value of 'size_t fread(void*, size_t, size_t, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
+   42 |    ::fread(f_data, 1, f_size, (FILE *)fp);
+      |    ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+libretro.cpp: In function 'bool retro_load_game(const retro_game_info*)':
+libretro.cpp:2639:10: warning: 'void* memset(void*, int, size_t)' clearing an object of non-trivial type 'class MDFN_PixelFormat'; use assignment or value-initialization instead [-Wclass-memaccess]
+ 2639 |    memset(&last_pixel_format, 0, sizeof(MDFN_PixelFormat));
+      |    ~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+In file included from mednafen/git.h:13,
+                 from mednafen/mednafen.h:12,
+                 from libretro.cpp:1:
+mednafen/video/surface.h:53:7: note: 'class MDFN_PixelFormat' declared here
+   53 | class MDFN_PixelFormat
+      |       ^~~~~~~~~~~~~~~~
 mednafen/state.cpp: In function 'bool SubWrite(StateMem*, SFORMAT*, const char*)':
 mednafen/state.cpp:149:65: warning: '%s' directive argument is null [-Wformat-overflow=]
   149 |     printf("Warning:  state variable name possibly too long: %s %s %s %d\n", sf->name, name_prefix, nameo, slen);
@@ -443,12 +479,14 @@
 dpkg-buildpackage: info: binary-only upload (no source included)
 dpkg-genchanges: info: not including original source code in upload
 I: copying local configuration
+I: user script /srv/workspace/pbuilder/54462/tmp/hooks/B01_cleanup starting
+I: user script /srv/workspace/pbuilder/54462/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/2473928 and its subdirectories
-I: Current time: Tue Apr  7 20:08:10 -12 2026
-I: pbuilder-time-stamp: 1775635690
+I: removing directory /srv/workspace/pbuilder/54462 and its subdirectories
+I: Current time: Thu Mar  6 15:48:14 +14 2025
+I: pbuilder-time-stamp: 1741225694