==> Synchronizing chroot copy [/home/leming/armv7/root] -> [leming]...done
==> Making package: python-libvcs 0.35.0-1 (Mon Apr  7 03:32:04 2025)
==> Retrieving sources...
  -> Found python-libvcs-0.35.0.tar.gz
==> WARNING: Skipping verification of source file PGP signatures.
==> Validating source files with sha512sums...
    python-libvcs-0.35.0.tar.gz ... Passed
==> Validating source files with b2sums...
    python-libvcs-0.35.0.tar.gz ... Passed
==> Making package: python-libvcs 0.35.0-1 (Mon Apr  7 03:32:27 2025)
==> Checking runtime dependencies...
==> Checking buildtime dependencies...
==> Installing missing dependencies...
[?25lresolving dependencies...
looking for conflicting packages...

Packages (4) python-packaging-24.2-3  python-pyproject-hooks-1.2.0-3
             python-build-1.2.2-3  python-installer-0.7.0-10

Total Download Size:   0.22 MiB
Total Installed Size:  1.13 MiB

:: Proceed with installation? [Y/n] 
:: Retrieving packages...
 python-packaging-24.2-3-any downloading...
 python-build-1.2.2-3-any downloading...
 python-installer-0.7.0-10-any downloading...
 python-pyproject-hooks-1.2.0-3-any downloading...
checking keyring...
checking package integrity...
loading package files...
checking for file conflicts...
checking available disk space...
:: Processing package changes...
installing python-packaging...
installing python-pyproject-hooks...
installing python-build...
Optional dependencies for python-build
    python-pip: to use as the Python package installer (default)
    python-uv: to use as the Python package installer
    python-virtualenv: to use virtualenv for build isolation
installing python-installer...
:: Running post-transaction hooks...
(1/1) Arming ConditionNeedsUpdate...
[?25h==> Retrieving sources...
  -> Found python-libvcs-0.35.0.tar.gz
==> WARNING: Skipping all source file integrity checks.
==> Extracting sources...
  -> Extracting python-libvcs-0.35.0.tar.gz with bsdtar
==> Starting build()...
* Building 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 /home/leming/armv7/leming/build