:: Synchronizing package databases...
 build-support-manual downloading...
 build-support downloading...
 core-staging downloading...
 extra-staging downloading...
 core-testing downloading...
 core downloading...
 extra-testing downloading...
 extra downloading...
:: Starting full system upgrade...
 there is nothing to do
==> Building in chroot for [extra-staging-with-build-support] (pentium4)...
==> Synchronizing chroot copy [/var/lib/archbuild/extra-staging-with-build-support-pentium4/root] -> [build]...done
==> Making package: python-flask-wtf 1.2.2-1.0 (Wed Apr  2 13:35:22 2025)
==> Retrieving sources...
  -> Found python-flask-wtf-1.2.2.tar.gz
==> Validating source files with sha512sums...
    python-flask-wtf-1.2.2.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-flask-wtf 1.2.2-1.0 (Wed Apr  2 13:35:27 2025)
==> Checking runtime dependencies...
==> Installing missing dependencies...
resolving dependencies...
looking for conflicting packages...

Packages (12) python-blinker-1.8.2-1.0  python-click-8.1.7-3.2  python-jinja-1:3.1.4-1.0  python-pytz-2024.2-1.0  python-speaklater-1.3-13.1  python-babel-2.15.0-1.0  python-flask-2.3.3-2.3  python-flask-babel-4.0.0-2.1  python-itsdangerous-2.1.2-4.1  python-markupsafe-2.1.5-2.2  python-werkzeug-3.0.4-1.0  python-wtforms-3.1.2-2.1

Total Installed Size:  36.02 MiB

:: Proceed with installation? [Y/n] 
checking keyring...
checking package integrity...
loading package files...
checking for file conflicts...
:: Processing package changes...
installing python-pytz...
installing python-babel...
installing python-markupsafe...
installing python-werkzeug...
installing python-jinja...
Optional dependencies for python-jinja
    python-babel: for i18n support [installed]
installing python-itsdangerous...
installing python-click...
installing python-blinker...
installing python-flask...
Optional dependencies for python-flask
    python-asgiref: async functions and views
    python-dotenv: loading env vars from files
installing python-speaklater...
installing python-flask-babel...
installing python-wtforms...
Optional dependencies for python-wtforms
    python-email-validator: Email validation
:: Running post-transaction hooks...
(1/1) Arming ConditionNeedsUpdate...
==> Checking buildtime dependencies...
==> Installing missing dependencies...
resolving dependencies...
looking for conflicting packages...

Packages (9) python-editables-0.5-3.1  python-pathspec-0.12.1-2.1  python-pluggy-1.5.0-1.0  python-pyproject-hooks-1.2.0-3.1  python-trove-classifiers-2024.10.21.16-1.0  python-build-1-1.3  python-hatchling-1.25.0-1.0  python-installer-1-1.3  python-wheel-1-1.3

Total Installed Size:  3.66 MiB

:: Proceed with installation? [Y/n] 
checking keyring...
checking package integrity...
loading package files...
checking for file conflicts...
:: Processing package changes...
installing python-pyproject-hooks...
installing python-build...
installing python-pathspec...
installing python-pluggy...
installing python-editables...
installing python-trove-classifiers...
installing python-hatchling...
installing python-installer...
installing python-wheel...
:: Running post-transaction hooks...
(1/1) Arming ConditionNeedsUpdate...
==> Retrieving sources...
  -> Found python-flask-wtf-1.2.2.tar.gz
==> WARNING: Skipping all source file integrity checks.
==> Extracting sources...
  -> Extracting python-flask-wtf-1.2.2.tar.gz with bsdtar
==> Starting prepare()...
==> 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 'hatchling.build'

ERROR Backend 'hatchling.build' is not available.
==> ERROR: A failure occurred in build().
    Aborting...
==> ERROR: Build failed, check /var/lib/archbuild/extra-staging-with-build-support-pentium4/build/build
used straw: :with_build_support:without_check:
build@euronuc.lan