+ curl -f --connect-timeout 5 --retry 3 --location https://files.pythonhosted.org/packages/source/s/starlette/starlette-1.0.0.tar.gz
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed

  0     0    0     0    0     0      0      0 --:--:-- --:--:-- --:--:--     0
  0     0    0     0    0     0      0      0 --:--:-- --:--:-- --:--:--     0
  0     0    0     0    0     0      0      0 --:--:-- --:--:-- --:--:--     0

100 2593k  100 2593k    0     0  2104k      0  0:00:01  0:00:01 --:--:-- 2104k
* Getting build dependencies for wheel...

Traceback (most recent call last):
  File "/mnt/disk/master/staging_dir/hostpkg/lib/python3.14/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.
make[2]: *** [Makefile:51: /mnt/disk/master/build_dir/target-mipsel_24kc+24kf_musl/pypi/starlette-1.0.0/.built] Error 1
time: package/feeds/packages/python-starlette/compile#0.84#0.17#2.23