=> Bootstrap dependency digest>=20211023: found digest-20220214
===> Skipping vulnerability checks.
WARNING: No /usr/pkg/pkgdb/pkg-vulnerabilities file found.
WARNING: To fix run: `/usr/sbin/pkg_admin -K /usr/pkg/pkgdb fetch-pkg-vulnerabilities'.
===> Building for py311-PyRTL-0.11.1
* Building wheel...

Traceback (most recent call last):
  File "/usr/pkg/lib/python3.11/site-packages/pyproject_hooks/_impl.py", line 402, in _call_hook
    raise BackendUnavailable(
pyproject_hooks._impl.BackendUnavailable: Cannot import 'hatchling.build'

ERROR Backend 'hatchling.build' is not available.
*** Error code 1

Stop.
make[1]: stopped in /usr/pkgsrc/cad/py-PyRTL
*** Error code 1

Stop.
make: stopped in /usr/pkgsrc/cad/py-PyRTL