:: Synchronizing package databases... core-staging downloading... core-testing downloading... core downloading... extra-staging downloading... extra-testing downloading... extra downloading... :: Starting full system upgrade... there is nothing to do ==> Building in chroot for [extra-staging] (i486)... ==> Synchronizing chroot copy [/var/lib/archbuild/extra-staging-i486/root] -> [build]...done ==> Making package: python-propcache 0.3.1-1.0 (Wed May 7 04:32:58 2025) ==> Retrieving sources... -> Found propcache-0.3.1.tar.gz ==> Validating source files with sha512sums... propcache-0.3.1.tar.gz ... Passed gpg: Warning: using insecure memory! ==> Appending keys from archlinux32.gpg... gpg: Warning: using insecure memory! gpg: Warning: using insecure memory! gpg: Warning: using insecure memory! gpg: Warning: using insecure memory! gpg: Warning: using insecure memory! gpg: Warning: using insecure memory! gpg: Warning: using insecure memory! gpg: Warning: using insecure memory! gpg: Warning: using insecure memory! gpg: Warning: using insecure memory! gpg: Warning: using insecure memory! gpg: Warning: using insecure memory! gpg: Warning: using insecure memory! gpg: Warning: using insecure memory! ==> Updating trust database... gpg: Warning: using insecure memory! gpg: next trustdb check due at 2025-06-16 ==> Making package: python-propcache 0.3.1-1.0 (Wed May 7 04:33:07 2025) ==> Checking runtime dependencies... ==> Installing missing dependencies... resolving dependencies... looking for conflicting packages... Package (2) New Version Net Change core/mpdecimal 4.0.0-2.153 0.31 MiB core-staging/python 3.13.3-1.0 64.02 MiB Total Installed Size: 64.34 MiB :: Proceed with installation? [Y/n] checking keyring... checking package integrity... loading package files... checking for file conflicts... :: Processing package changes... installing mpdecimal... installing python... Optional dependencies for python python-setuptools: for building Python packages using tooling that is usually bundled with Python python-pip: for installing Python packages using tooling that is usually bundled with Python python-pipx: for installing Python software not packaged on Arch Linux sqlite: for a default database integration [installed] xz: for lzma [installed] tk: for tkinter :: Running post-transaction hooks... (1/1) Arming ConditionNeedsUpdate... ==> Checking buildtime dependencies... ==> Installing missing dependencies... resolving dependencies... looking for conflicting packages... Package (22) New Version Net Change extra-staging/python-autocommand 2.2.2-6.0 0.08 MiB extra-testing/python-fastjsonschema 2.20.0-1.0 0.27 MiB extra-staging/python-iniconfig 2.0.0-5.1 0.04 MiB extra-testing/python-jaraco.context 5.3.0-1.0 0.04 MiB extra-testing/python-jaraco.functools 4.0.2-1.0 0.07 MiB extra-testing/python-jaraco.text 4.0.0-1.0 0.08 MiB extra-testing/python-more-itertools 10.3.0-1.0 0.63 MiB extra-staging/python-ordered-set 4.1.0-5.1 0.06 MiB extra-staging/python-packaging 25.0-1.0 0.67 MiB extra-testing/python-platformdirs 4.3.6-1.0 0.24 MiB extra-staging/python-pluggy 1.5.0-3.0 0.20 MiB extra-staging/python-pyproject-hooks 1.2.0-3.1 0.10 MiB extra-staging/python-tomli 2.0.1-4.1 0.10 MiB extra-testing/python-trove-classifiers 2024.10.21.16-1.0 0.12 MiB extra-testing/python-validate-pyproject 0.22-1.0 0.34 MiB extra-testing/cython 3.0.11-1.0 17.82 MiB extra-staging/python-build 1.2.2-3.1 0.20 MiB extra-staging/python-expandvars 0.12.0-2.1 0.05 MiB extra-staging/python-installer 0.7.0-10.0 0.17 MiB extra-testing/python-pytest 1:8.3.3-1.0 3.90 MiB extra-testing/python-setuptools 1:69.5.1-1.1 4.41 MiB extra-staging/python-wheel 0.45.1-1.0 0.28 MiB Total Installed Size: 29.88 MiB :: Proceed with installation? [Y/n] checking keyring... checking package integrity... loading package files... checking for file conflicts... :: Processing package changes... installing cython... installing python-packaging... installing python-pyproject-hooks... installing python-build... installing python-expandvars... installing python-installer... installing python-more-itertools... installing python-jaraco.functools... installing python-jaraco.context... installing python-autocommand... installing python-jaraco.text... Optional dependencies for python-jaraco.text python-inflect: for show-newlines script installing python-ordered-set... installing python-platformdirs... installing python-tomli... installing python-fastjsonschema... installing python-trove-classifiers... installing python-validate-pyproject... installing python-setuptools... installing python-wheel... Optional dependencies for python-wheel python-keyring: for wheel.signatures python-xdg: for wheel.signatures python-setuptools: for legacy bdist_wheel subcommand [installed] installing python-iniconfig... installing python-pluggy... installing python-pytest... :: Running post-transaction hooks... (1/1) Arming ConditionNeedsUpdate... ==> Retrieving sources... -> Found propcache-0.3.1.tar.gz ==> WARNING: Skipping all source file integrity checks. ==> Extracting sources... -> Extracting propcache-0.3.1.tar.gz with bsdtar ==> Starting build()... * Getting build dependencies for wheel... Traceback (most recent call last): File "/usr/lib/python3.13/site-packages/pyproject_hooks/_impl.py", line 402, in _call_hook raise BackendUnavailable( ...<4 lines>... ) pyproject_hooks._impl.BackendUnavailable: Cannot import 'pep517_backend.hooks' ERROR Backend 'pep517_backend.hooks' is not available. ==> ERROR: A failure occurred in build(). Aborting... ==> ERROR: Build failed, check /var/lib/archbuild/extra-staging-i486/build/build used straw: :mirrored_source_by_hash: build@euronuc-i486