Diff of the two buildlogs:

--
--- b1/build.log	2025-03-11 05:58:24.838250960 +0000
+++ b2/build.log	2025-03-11 06:05:16.839563724 +0000
@@ -1,6 +1,6 @@
 I: pbuilder: network access will be disabled during build
-I: Current time: Mon Mar 10 17:31:02 -12 2025
-I: pbuilder-time-stamp: 1741671062
+I: Current time: Tue Apr 14 02:21:23 +14 2026
+I: pbuilder-time-stamp: 1776082883
 I: Building the build Environment
 I: extracting base tarball [/var/cache/pbuilder/unstable-reproducible-base.tgz]
 I: copying local configuration
@@ -27,52 +27,84 @@
 dpkg-source: info: applying python_local_LICENSE.patch
 I: Not using root during the build.
 I: Installing the build-deps
-I: user script /srv/workspace/pbuilder/3714419/tmp/hooks/D02_print_environment starting
+I: user script /srv/workspace/pbuilder/3509210/tmp/hooks/D01_modify_environment starting
+debug: Running on ionos15-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 Apr 13 12:21 /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/3509210/tmp/hooks/D01_modify_environment finished
+I: user script /srv/workspace/pbuilder/3509210/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=20 '
-  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=42 '
+  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='093e6f3c728a49e89a597a7cfc414a22'
-  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='3714419'
-  PS1='# '
-  PS2='> '
+  INVOCATION_ID=5efbf44e36fd47e3bcae7520bca12f5d
+  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=3509210
   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.AqkyFVKS/pbuilderrc_9rd4 --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.AqkyFVKS/b1 --logfile b1/build.log dolfinx-mpc_0.9.1-1.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://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.AqkyFVKS/pbuilderrc_KpVj --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.AqkyFVKS/b2 --logfile b2/build.log dolfinx-mpc_0.9.1-1.dsc'
+  SUDO_GID=111
+  SUDO_UID=106
+  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 ionos11-amd64 6.1.0-31-amd64 #1 SMP PREEMPT_DYNAMIC Debian 6.1.128-1 (2025-02-07) x86_64 GNU/Linux
+  Linux i-capture-the-hostname 6.12.12+bpo-amd64 #1 SMP PREEMPT_DYNAMIC Debian 6.12.12-1~bpo12+1 (2025-02-23) x86_64 GNU/Linux
 I: ls -l /bin
-  lrwxrwxrwx 1 root root 7 Mar  4 11:20 /bin -> usr/bin
-I: user script /srv/workspace/pbuilder/3714419/tmp/hooks/D02_print_environment finished
+  lrwxrwxrwx 1 root root 7 Mar  4  2025 /bin -> usr/bin
+I: user script /srv/workspace/pbuilder/3509210/tmp/hooks/D02_print_environment finished
  -> Attempting to satisfy build-dependencies
  -> Creating pbuilder-satisfydepends-dummy package
 Package: pbuilder-satisfydepends-dummy
@@ -606,7 +638,7 @@
 Get: 460 http://deb.debian.org/debian unstable/main amd64 python3-pyproject-metadata all 0.9.0-1 [20.8 kB]
 Get: 461 http://deb.debian.org/debian unstable/main amd64 python3-pytest all 8.3.5-1 [250 kB]
 Get: 462 http://deb.debian.org/debian unstable/main amd64 python3-scikit-build-core all 0.10.7-2 [123 kB]
-Fetched 404 MB in 24s (16.6 MB/s)
+Fetched 404 MB in 13s (31.1 MB/s)
 Preconfiguring packages ...
 Selecting previously unselected package libpython3.13-minimal:amd64.
 (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.)
@@ -2080,8 +2112,8 @@
 Setting up tzdata (2025a-2) ...
 
 Current default time zone: 'Etc/UTC'
-Local time is now:      Tue Mar 11 05:39:47 UTC 2025.
-Universal Time is now:  Tue Mar 11 05:39:47 UTC 2025.
+Local time is now:      Mon Apr 13 12:23:42 UTC 2026.
+Universal Time is now:  Mon Apr 13 12:23:42 UTC 2026.
 Run 'dpkg-reconfigure tzdata' if you wish to change it.
 
 Setting up libboost-atomic1.83.0:amd64 (1.83.0-4.1+b1) ...
@@ -2526,7 +2558,11 @@
 Building tag database...
  -> Finished parsing the build-deps
 I: Building the package
-I: Running cd /build/reproducible-path/dolfinx-mpc-0.9.1/ && 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  > ../dolfinx-mpc_0.9.1-1_source.changes
+I: user script /srv/workspace/pbuilder/3509210/tmp/hooks/A99_set_merged_usr starting
+Not re-configuring usrmerge for unstable
+I: user script /srv/workspace/pbuilder/3509210/tmp/hooks/A99_set_merged_usr finished
+hostname: Name or service not known
+I: Running cd /build/reproducible-path/dolfinx-mpc-0.9.1/ && 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  > ../dolfinx-mpc_0.9.1-1_source.changes
 dpkg-buildpackage: info: source package dolfinx-mpc
 dpkg-buildpackage: info: source version 0.9.1-1
 dpkg-buildpackage: info: source distribution unstable
@@ -2621,8 +2657,8 @@
 
  * CMAKE_INSTALL_RPATH_USE_LINK_PATH, Add paths to linker search and installed rpath.
 
--- Configuring done (20.3s)
--- Generating done (0.1s)
+-- Configuring done (8.3s)
+-- Generating done (0.0s)
 CMake Warning:
   Manually-specified variables were not used by the project:
 
@@ -2634,7 +2670,7 @@
 -- Build files have been written to: /build/reproducible-path/dolfinx-mpc-0.9.1/obj-x86_64-linux-gnu
 make[1]: Leaving directory '/build/reproducible-path/dolfinx-mpc-0.9.1'
    dh_auto_build -O--buildsystem=cmake
-	cd obj-x86_64-linux-gnu && make -j20 "INSTALL=install --strip-program=true" VERBOSE=1
+	cd obj-x86_64-linux-gnu && make -j42 "INSTALL=install --strip-program=true" VERBOSE=1
 make[1]: Entering directory '/build/reproducible-path/dolfinx-mpc-0.9.1/obj-x86_64-linux-gnu'
 /usr/bin/cmake -S/build/reproducible-path/dolfinx-mpc-0.9.1/cpp -B/build/reproducible-path/dolfinx-mpc-0.9.1/obj-x86_64-linux-gnu --check-build-system CMakeFiles/Makefile.cmake 0
 /usr/bin/cmake -E cmake_progress_start /build/reproducible-path/dolfinx-mpc-0.9.1/obj-x86_64-linux-gnu/CMakeFiles /build/reproducible-path/dolfinx-mpc-0.9.1/obj-x86_64-linux-gnu//CMakeFiles/progress.marks
@@ -2646,16 +2682,16 @@
 make[3]: Leaving directory '/build/reproducible-path/dolfinx-mpc-0.9.1/obj-x86_64-linux-gnu'
 make  -f CMakeFiles/dolfinx_mpc.dir/build.make CMakeFiles/dolfinx_mpc.dir/build
 make[3]: Entering directory '/build/reproducible-path/dolfinx-mpc-0.9.1/obj-x86_64-linux-gnu'
-[ 16%] Building CXX object CMakeFiles/dolfinx_mpc.dir/assemble_matrix.cpp.o
-/usr/bin/c++ -DADIOS2_USE_MPI -DBOOST_TIMER_DYN_LINK -DBOOST_TIMER_NO_LIB -DDOLFINX_MPC_VERSION=\"0.9.0.0\" -DDOLFINX_VERSION=\"0.9.0\" -DFMT_SHARED -DHAS_ADIOS2 -DHAS_PETSC -DHAS_PTSCOTCH -DHAS_SLEPC -DSPDLOG_COMPILED_LIB -DSPDLOG_FMT_EXTERNAL -DSPDLOG_SHARED_LIB -Ddolfinx_mpc_EXPORTS -I/build/reproducible-path/dolfinx-mpc-0.9.1/cpp -I/build/reproducible-path/dolfinx-mpc-0.9.1/cpp/dolfinx_mpc -isystem /usr/lib/python3/dist-packages/ffcx/codegeneration -isystem /usr/lib/x86_64-linux-gnu/openmpi/include -isystem /usr/lib/x86_64-linux-gnu/openmpi/include/openmpi -isystem /usr/include/hdf5/openmpi -isystem /usr/include/adios2/build/mpi -isystem /usr/lib/petscdir/petsc3.22/x86_64-linux-gnu-real/include -isystem /usr/lib/slepcdir/slepc3.22/x86_64-linux-gnu-real/include -g -O2 -ffile-prefix-map=/build/reproducible-path/dolfinx-mpc-0.9.1=. -fstack-protector-strong -fstack-clash-protection -Wformat -Werror=format-security -fcf-protection -Wdate-time -D_FORTIFY_SOURCE=2 -std=gnu++20 -fPIC -Wdate-time -D_FORTIFY_SOURCE=2 -MD -MT CMakeFiles/dolfinx_mpc.dir/assemble_matrix.cpp.o -MF CMakeFiles/dolfinx_mpc.dir/assemble_matrix.cpp.o.d -o CMakeFiles/dolfinx_mpc.dir/assemble_matrix.cpp.o -c /build/reproducible-path/dolfinx-mpc-0.9.1/cpp/assemble_matrix.cpp
-[ 33%] Building CXX object CMakeFiles/dolfinx_mpc.dir/utils.cpp.o
-[ 50%] Building CXX object CMakeFiles/dolfinx_mpc.dir/assemble_utils.cpp.o
+[ 66%] Building CXX object CMakeFiles/dolfinx_mpc.dir/utils.cpp.o
+[ 66%] Building CXX object CMakeFiles/dolfinx_mpc.dir/assemble_matrix.cpp.o
+[ 66%] Building CXX object CMakeFiles/dolfinx_mpc.dir/assemble_utils.cpp.o
+[ 66%] Building CXX object CMakeFiles/dolfinx_mpc.dir/mpi_utils.cpp.o
+/usr/bin/c++ -DADIOS2_USE_MPI -DBOOST_TIMER_DYN_LINK -DBOOST_TIMER_NO_LIB -DDOLFINX_MPC_VERSION=\"0.9.0.0\" -DDOLFINX_VERSION=\"0.9.0\" -DFMT_SHARED -DHAS_ADIOS2 -DHAS_PETSC -DHAS_PTSCOTCH -DHAS_SLEPC -DSPDLOG_COMPILED_LIB -DSPDLOG_FMT_EXTERNAL -DSPDLOG_SHARED_LIB -Ddolfinx_mpc_EXPORTS -I/build/reproducible-path/dolfinx-mpc-0.9.1/cpp -I/build/reproducible-path/dolfinx-mpc-0.9.1/cpp/dolfinx_mpc -isystem /usr/lib/python3/dist-packages/ffcx/codegeneration -isystem /usr/lib/x86_64-linux-gnu/openmpi/include -isystem /usr/lib/x86_64-linux-gnu/openmpi/include/openmpi -isystem /usr/include/hdf5/openmpi -isystem /usr/include/adios2/build/mpi -isystem /usr/lib/petscdir/petsc3.22/x86_64-linux-gnu-real/include -isystem /usr/lib/slepcdir/slepc3.22/x86_64-linux-gnu-real/include -g -O2 -ffile-prefix-map=/build/reproducible-path/dolfinx-mpc-0.9.1=. -fstack-protector-strong -fstack-clash-protection -Wformat -Werror=format-security -fcf-protection -Wdate-time -D_FORTIFY_SOURCE=2 -std=gnu++20 -fPIC -Wdate-time -D_FORTIFY_SOURCE=2 -MD -MT CMakeFiles/dolfinx_mpc.dir/mpi_utils.cpp.o -MF CMakeFiles/dolfinx_mpc.dir/mpi_utils.cpp.o.d -o CMakeFiles/dolfinx_mpc.dir/mpi_utils.cpp.o -c /build/reproducible-path/dolfinx-mpc-0.9.1/cpp/mpi_utils.cpp
 /usr/bin/c++ -DADIOS2_USE_MPI -DBOOST_TIMER_DYN_LINK -DBOOST_TIMER_NO_LIB -DDOLFINX_MPC_VERSION=\"0.9.0.0\" -DDOLFINX_VERSION=\"0.9.0\" -DFMT_SHARED -DHAS_ADIOS2 -DHAS_PETSC -DHAS_PTSCOTCH -DHAS_SLEPC -DSPDLOG_COMPILED_LIB -DSPDLOG_FMT_EXTERNAL -DSPDLOG_SHARED_LIB -Ddolfinx_mpc_EXPORTS -I/build/reproducible-path/dolfinx-mpc-0.9.1/cpp -I/build/reproducible-path/dolfinx-mpc-0.9.1/cpp/dolfinx_mpc -isystem /usr/lib/python3/dist-packages/ffcx/codegeneration -isystem /usr/lib/x86_64-linux-gnu/openmpi/include -isystem /usr/lib/x86_64-linux-gnu/openmpi/include/openmpi -isystem /usr/include/hdf5/openmpi -isystem /usr/include/adios2/build/mpi -isystem /usr/lib/petscdir/petsc3.22/x86_64-linux-gnu-real/include -isystem /usr/lib/slepcdir/slepc3.22/x86_64-linux-gnu-real/include -g -O2 -ffile-prefix-map=/build/reproducible-path/dolfinx-mpc-0.9.1=. -fstack-protector-strong -fstack-clash-protection -Wformat -Werror=format-security -fcf-protection -Wdate-time -D_FORTIFY_SOURCE=2 -std=gnu++20 -fPIC -Wdate-time -D_FORTIFY_SOURCE=2 -MD -MT CMakeFiles/dolfinx_mpc.dir/utils.cpp.o -MF CMakeFiles/dolfinx_mpc.dir/utils.cpp.o.d -o CMakeFiles/dolfinx_mpc.dir/utils.cpp.o -c /build/reproducible-path/dolfinx-mpc-0.9.1/cpp/utils.cpp
+/usr/bin/c++ -DADIOS2_USE_MPI -DBOOST_TIMER_DYN_LINK -DBOOST_TIMER_NO_LIB -DDOLFINX_MPC_VERSION=\"0.9.0.0\" -DDOLFINX_VERSION=\"0.9.0\" -DFMT_SHARED -DHAS_ADIOS2 -DHAS_PETSC -DHAS_PTSCOTCH -DHAS_SLEPC -DSPDLOG_COMPILED_LIB -DSPDLOG_FMT_EXTERNAL -DSPDLOG_SHARED_LIB -Ddolfinx_mpc_EXPORTS -I/build/reproducible-path/dolfinx-mpc-0.9.1/cpp -I/build/reproducible-path/dolfinx-mpc-0.9.1/cpp/dolfinx_mpc -isystem /usr/lib/python3/dist-packages/ffcx/codegeneration -isystem /usr/lib/x86_64-linux-gnu/openmpi/include -isystem /usr/lib/x86_64-linux-gnu/openmpi/include/openmpi -isystem /usr/include/hdf5/openmpi -isystem /usr/include/adios2/build/mpi -isystem /usr/lib/petscdir/petsc3.22/x86_64-linux-gnu-real/include -isystem /usr/lib/slepcdir/slepc3.22/x86_64-linux-gnu-real/include -g -O2 -ffile-prefix-map=/build/reproducible-path/dolfinx-mpc-0.9.1=. -fstack-protector-strong -fstack-clash-protection -Wformat -Werror=format-security -fcf-protection -Wdate-time -D_FORTIFY_SOURCE=2 -std=gnu++20 -fPIC -Wdate-time -D_FORTIFY_SOURCE=2 -MD -MT CMakeFiles/dolfinx_mpc.dir/assemble_matrix.cpp.o -MF CMakeFiles/dolfinx_mpc.dir/assemble_matrix.cpp.o.d -o CMakeFiles/dolfinx_mpc.dir/assemble_matrix.cpp.o -c /build/reproducible-path/dolfinx-mpc-0.9.1/cpp/assemble_matrix.cpp
+[ 83%] Building CXX object CMakeFiles/dolfinx_mpc.dir/assemble_vector.cpp.o
 /usr/bin/c++ -DADIOS2_USE_MPI -DBOOST_TIMER_DYN_LINK -DBOOST_TIMER_NO_LIB -DDOLFINX_MPC_VERSION=\"0.9.0.0\" -DDOLFINX_VERSION=\"0.9.0\" -DFMT_SHARED -DHAS_ADIOS2 -DHAS_PETSC -DHAS_PTSCOTCH -DHAS_SLEPC -DSPDLOG_COMPILED_LIB -DSPDLOG_FMT_EXTERNAL -DSPDLOG_SHARED_LIB -Ddolfinx_mpc_EXPORTS -I/build/reproducible-path/dolfinx-mpc-0.9.1/cpp -I/build/reproducible-path/dolfinx-mpc-0.9.1/cpp/dolfinx_mpc -isystem /usr/lib/python3/dist-packages/ffcx/codegeneration -isystem /usr/lib/x86_64-linux-gnu/openmpi/include -isystem /usr/lib/x86_64-linux-gnu/openmpi/include/openmpi -isystem /usr/include/hdf5/openmpi -isystem /usr/include/adios2/build/mpi -isystem /usr/lib/petscdir/petsc3.22/x86_64-linux-gnu-real/include -isystem /usr/lib/slepcdir/slepc3.22/x86_64-linux-gnu-real/include -g -O2 -ffile-prefix-map=/build/reproducible-path/dolfinx-mpc-0.9.1=. -fstack-protector-strong -fstack-clash-protection -Wformat -Werror=format-security -fcf-protection -Wdate-time -D_FORTIFY_SOURCE=2 -std=gnu++20 -fPIC -Wdate-time -D_FORTIFY_SOURCE=2 -MD -MT CMakeFiles/dolfinx_mpc.dir/assemble_utils.cpp.o -MF CMakeFiles/dolfinx_mpc.dir/assemble_utils.cpp.o.d -o CMakeFiles/dolfinx_mpc.dir/assemble_utils.cpp.o -c /build/reproducible-path/dolfinx-mpc-0.9.1/cpp/assemble_utils.cpp
-[ 66%] Building CXX object CMakeFiles/dolfinx_mpc.dir/assemble_vector.cpp.o
 /usr/bin/c++ -DADIOS2_USE_MPI -DBOOST_TIMER_DYN_LINK -DBOOST_TIMER_NO_LIB -DDOLFINX_MPC_VERSION=\"0.9.0.0\" -DDOLFINX_VERSION=\"0.9.0\" -DFMT_SHARED -DHAS_ADIOS2 -DHAS_PETSC -DHAS_PTSCOTCH -DHAS_SLEPC -DSPDLOG_COMPILED_LIB -DSPDLOG_FMT_EXTERNAL -DSPDLOG_SHARED_LIB -Ddolfinx_mpc_EXPORTS -I/build/reproducible-path/dolfinx-mpc-0.9.1/cpp -I/build/reproducible-path/dolfinx-mpc-0.9.1/cpp/dolfinx_mpc -isystem /usr/lib/python3/dist-packages/ffcx/codegeneration -isystem /usr/lib/x86_64-linux-gnu/openmpi/include -isystem /usr/lib/x86_64-linux-gnu/openmpi/include/openmpi -isystem /usr/include/hdf5/openmpi -isystem /usr/include/adios2/build/mpi -isystem /usr/lib/petscdir/petsc3.22/x86_64-linux-gnu-real/include -isystem /usr/lib/slepcdir/slepc3.22/x86_64-linux-gnu-real/include -g -O2 -ffile-prefix-map=/build/reproducible-path/dolfinx-mpc-0.9.1=. -fstack-protector-strong -fstack-clash-protection -Wformat -Werror=format-security -fcf-protection -Wdate-time -D_FORTIFY_SOURCE=2 -std=gnu++20 -fPIC -Wdate-time -D_FORTIFY_SOURCE=2 -MD -MT CMakeFiles/dolfinx_mpc.dir/assemble_vector.cpp.o -MF CMakeFiles/dolfinx_mpc.dir/assemble_vector.cpp.o.d -o CMakeFiles/dolfinx_mpc.dir/assemble_vector.cpp.o -c /build/reproducible-path/dolfinx-mpc-0.9.1/cpp/assemble_vector.cpp
-[ 83%] Building CXX object CMakeFiles/dolfinx_mpc.dir/mpi_utils.cpp.o
-/usr/bin/c++ -DADIOS2_USE_MPI -DBOOST_TIMER_DYN_LINK -DBOOST_TIMER_NO_LIB -DDOLFINX_MPC_VERSION=\"0.9.0.0\" -DDOLFINX_VERSION=\"0.9.0\" -DFMT_SHARED -DHAS_ADIOS2 -DHAS_PETSC -DHAS_PTSCOTCH -DHAS_SLEPC -DSPDLOG_COMPILED_LIB -DSPDLOG_FMT_EXTERNAL -DSPDLOG_SHARED_LIB -Ddolfinx_mpc_EXPORTS -I/build/reproducible-path/dolfinx-mpc-0.9.1/cpp -I/build/reproducible-path/dolfinx-mpc-0.9.1/cpp/dolfinx_mpc -isystem /usr/lib/python3/dist-packages/ffcx/codegeneration -isystem /usr/lib/x86_64-linux-gnu/openmpi/include -isystem /usr/lib/x86_64-linux-gnu/openmpi/include/openmpi -isystem /usr/include/hdf5/openmpi -isystem /usr/include/adios2/build/mpi -isystem /usr/lib/petscdir/petsc3.22/x86_64-linux-gnu-real/include -isystem /usr/lib/slepcdir/slepc3.22/x86_64-linux-gnu-real/include -g -O2 -ffile-prefix-map=/build/reproducible-path/dolfinx-mpc-0.9.1=. -fstack-protector-strong -fstack-clash-protection -Wformat -Werror=format-security -fcf-protection -Wdate-time -D_FORTIFY_SOURCE=2 -std=gnu++20 -fPIC -Wdate-time -D_FORTIFY_SOURCE=2 -MD -MT CMakeFiles/dolfinx_mpc.dir/mpi_utils.cpp.o -MF CMakeFiles/dolfinx_mpc.dir/mpi_utils.cpp.o.d -o CMakeFiles/dolfinx_mpc.dir/mpi_utils.cpp.o -c /build/reproducible-path/dolfinx-mpc-0.9.1/cpp/mpi_utils.cpp
 [100%] Linking CXX shared library libdolfinx_mpc.so
 /usr/bin/cmake -E cmake_link_script CMakeFiles/dolfinx_mpc.dir/link.txt --verbose=1
 /usr/bin/c++ -fPIC -g -O2 -ffile-prefix-map=/build/reproducible-path/dolfinx-mpc-0.9.1=. -fstack-protector-strong -fstack-clash-protection -Wformat -Werror=format-security -fcf-protection -Wdate-time -D_FORTIFY_SOURCE=2 -Wl,--dependency-file=CMakeFiles/dolfinx_mpc.dir/link.d -Wl,-z,relro -shared -Wl,-soname,libdolfinx_mpc.so.0.9 -o libdolfinx_mpc.so.0.9.0.0 CMakeFiles/dolfinx_mpc.dir/utils.cpp.o CMakeFiles/dolfinx_mpc.dir/assemble_matrix.cpp.o CMakeFiles/dolfinx_mpc.dir/assemble_vector.cpp.o CMakeFiles/dolfinx_mpc.dir/assemble_utils.cpp.o CMakeFiles/dolfinx_mpc.dir/mpi_utils.cpp.o  -Wl,-rpath,/usr/lib/x86_64-linux-gnu/hdf5/openmpi:/usr/lib/x86_64-linux-gnu/openmpi/lib:/usr/lib/slepcdir/slepc3.22/x86_64-linux-gnu-real/lib:/usr/lib/petscdir/petsc3.22/x86_64-linux-gnu-real/lib: /usr/lib/x86_64-linux-gnu/libdolfinx_real.so.0.9.0 /usr/lib/x86_64-linux-gnu/libpugixml.so.1.14 /usr/lib/x86_64-linux-gnu/libbasix.so.0.9.0 /usr/lib/x86_64-linux-gnu/libboost_timer.so.1.83.0 /usr/lib/x86_64-linux-gnu/libspdlog.so.1.15.1 /usr/lib/x86_64-linux-gnu/libfmt.so.10.1.0 /usr/lib/x86_64-linux-gnu/hdf5/openmpi/libhdf5.so /usr/lib/x86_64-linux-gnu/libadios2_mpi_cxx11_mpi.so.2.10.2 /usr/lib/x86_64-linux-gnu/libadios2_mpi_cxx11.so.2.10.2 /usr/lib/x86_64-linux-gnu/openmpi/lib/libmpi.so /usr/lib/slepcdir/slepc3.22/x86_64-linux-gnu-real/lib/libslepc_real.so /usr/lib/petscdir/petsc3.22/x86_64-linux-gnu-real/lib/libpetsc_real.so
@@ -2670,7 +2706,7 @@
    dh_testroot -O--buildsystem=cmake
    dh_prep -O--buildsystem=cmake
    dh_auto_install -O--buildsystem=cmake
-	cd obj-x86_64-linux-gnu && make -j20 install DESTDIR=/build/reproducible-path/dolfinx-mpc-0.9.1/debian/tmp AM_UPDATE_INFO_DIR=no "INSTALL=install --strip-program=true"
+	cd obj-x86_64-linux-gnu && make -j42 install DESTDIR=/build/reproducible-path/dolfinx-mpc-0.9.1/debian/tmp AM_UPDATE_INFO_DIR=no "INSTALL=install --strip-program=true"
 make[1]: Entering directory '/build/reproducible-path/dolfinx-mpc-0.9.1/obj-x86_64-linux-gnu'
 /usr/bin/cmake -S/build/reproducible-path/dolfinx-mpc-0.9.1/cpp -B/build/reproducible-path/dolfinx-mpc-0.9.1/obj-x86_64-linux-gnu --check-build-system CMakeFiles/Makefile.cmake 0
 make  -f CMakeFiles/Makefile2 preinstall
@@ -2711,7 +2747,7 @@
 * Building wheel...
 *** scikit-build-core 0.10.7 using CMake 3.31.6 (wheel)
 *** Configuring CMake...
-loading initial cache file /tmp/tmpb2s0mcmh/build/CMakeInit.txt
+loading initial cache file /tmp/tmp_wlkfkqs/build/CMakeInit.txt
 -- The C compiler identification is GNU 14.2.0
 -- The CXX compiler identification is GNU 14.2.0
 -- Detecting C compiler ABI info
@@ -2771,11 +2807,11 @@
 -- Found DOLFINx_MPC at /build/reproducible-path/dolfinx-mpc-0.9.1/debian/tmp/usr/lib/x86_64-linux-gnu/cmake/dolfinx_mpc
 -- Found petsc4py include directory at /usr/lib/petsc/lib/python3/dist-packages/petsc4py/include
 -- Adding /usr/lib/petsc/lib/python3/dist-packages/dolfinx/wrappers to include directories
--- Configuring done (30.5s)
--- Generating done (0.1s)
--- Build files have been written to: /tmp/tmpb2s0mcmh/build
+-- Configuring done (3.8s)
+-- Generating done (0.0s)
+-- Build files have been written to: /tmp/tmp_wlkfkqs/build
 *** Building project with Unix Makefiles...
-gmake[2]: Entering directory '/tmp/tmpb2s0mcmh/build'
+gmake[2]: Entering directory '/tmp/tmp_wlkfkqs/build'
 [  6%] Building CXX object CMakeFiles/nanobind-static.dir/usr/share/nanobind/src/nb_internals.cpp.o
 [ 13%] Building CXX object CMakeFiles/nanobind-static.dir/usr/share/nanobind/src/nb_func.cpp.o
 [ 20%] Building CXX object CMakeFiles/nanobind-static.dir/usr/share/nanobind/src/nb_type.cpp.o
@@ -2793,10 +2829,10 @@
 [ 93%] Building CXX object CMakeFiles/cpp.dir/dolfinx_mpc/mpc.cpp.o
 [100%] Linking CXX shared module cpp.cpython-313-x86_64-linux-gnu.so
 [100%] Built target cpp
-gmake[2]: Leaving directory '/tmp/tmpb2s0mcmh/build'
+gmake[2]: Leaving directory '/tmp/tmp_wlkfkqs/build'
 *** Installing project into wheel...
 -- Install configuration: "Release"
--- Installing: /tmp/tmpb2s0mcmh/wheel/platlib/dolfinx_mpc/cpp.cpython-313-x86_64-linux-gnu.so
+-- Installing: /tmp/tmp_wlkfkqs/wheel/platlib/dolfinx_mpc/cpp.cpython-313-x86_64-linux-gnu.so
 *** Making wheel...
 *** Created dolfinx_mpc-0.9.0-cp313-cp313-linux_x86_64.whl
 Successfully built dolfinx_mpc-0.9.0-cp313-cp313-linux_x86_64.whl
@@ -2836,7 +2872,7 @@
 
 =============================== warnings summary ===============================
 tests/test_linear_problem.py::test_pipeline[False]
-  /usr/lib/python3/dist-packages/_pytest/unraisableexception.py:85: PytestUnraisableExceptionWarning: Exception ignored in: <function LinearProblem.__del__ at 0x7f6eac73f9c0>
+  /usr/lib/python3/dist-packages/_pytest/unraisableexception.py:85: PytestUnraisableExceptionWarning: Exception ignored in: <function LinearProblem.__del__ at 0x7f82a9e679c0>
   
   Traceback (most recent call last):
     File "/usr/lib/petsc/lib/python3/dist-packages/dolfinx/fem/petsc.py", line 831, in __del__
@@ -2847,7 +2883,7 @@
     warnings.warn(pytest.PytestUnraisableExceptionWarning(msg))
 
 -- Docs: https://docs.pytest.org/en/stable/how-to/capture-warnings.html
-======================== 72 passed, 1 warning in 50.93s ========================
+======================== 72 passed, 1 warning in 15.89s ========================
 rm -rf python/tests/__pycache__
 make[1]: Leaving directory '/build/reproducible-path/dolfinx-mpc-0.9.1'
    dh_python3 -O--buildsystem=cmake
@@ -2867,10 +2903,10 @@
    dh_gencontrol -O--buildsystem=cmake
    dh_md5sums -O--buildsystem=cmake
    dh_builddeb -O--buildsystem=cmake
-dpkg-deb: building package 'libdolfinx-mpc0.9-dbgsym' in '../libdolfinx-mpc0.9-dbgsym_0.9.1-1_amd64.deb'.
 dpkg-deb: building package 'libdolfinx-mpc-dev' in '../libdolfinx-mpc-dev_0.9.1-1_amd64.deb'.
-dpkg-deb: building package 'python3-dolfinx-mpc' in '../python3-dolfinx-mpc_0.9.1-1_amd64.deb'.
 dpkg-deb: building package 'libdolfinx-mpc0.9' in '../libdolfinx-mpc0.9_0.9.1-1_amd64.deb'.
+dpkg-deb: building package 'libdolfinx-mpc0.9-dbgsym' in '../libdolfinx-mpc0.9-dbgsym_0.9.1-1_amd64.deb'.
+dpkg-deb: building package 'python3-dolfinx-mpc' in '../python3-dolfinx-mpc_0.9.1-1_amd64.deb'.
  dpkg-genbuildinfo --build=binary -O../dolfinx-mpc_0.9.1-1_amd64.buildinfo
  dpkg-genchanges --build=binary -O../dolfinx-mpc_0.9.1-1_amd64.changes
 dpkg-genchanges: info: binary-only upload (no source code included)
@@ -2878,12 +2914,14 @@
 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/3509210/tmp/hooks/B01_cleanup starting
+I: user script /srv/workspace/pbuilder/3509210/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/3714419 and its subdirectories
-I: Current time: Mon Mar 10 17:58:23 -12 2025
-I: pbuilder-time-stamp: 1741672703
+I: removing directory /srv/workspace/pbuilder/3509210 and its subdirectories
+I: Current time: Tue Apr 14 02:28:13 +14 2026
+I: pbuilder-time-stamp: 1776083293