>>> Emerging : portage://dev-vcs/mercurial-9999:run?{[]}

These are the packages that would be merged, in order:

Calculating dependencies... done!

 └─step  1─┤ keyword portage://dev-vcs/mercurial-9999 (**)

 └─step  2─┤ verify  portage://dev-vcs/mercurial-9999 (model unavailable)
             │ download  portage://dev-python/cffi-2.1.1
             │           └─ file ─┤ 518.37 Kb  	 cffi-2.1.1.tar.gz
             │ download  portage://dev-python/flit-core-4.1.0
             │           └─ file ─┤ 53.40 Kb  	 flit_core-4.1.0.tar.gz
             │ download  portage://dev-python/gpep517-23
             │           └─ file ─┤ 30.63 Kb  	 gpep517-23.gh.tar.gz
             │ download  portage://dev-python/installer-1.1.0
             │           └─ file ─┤ 453.58 Kb  	 installer-1.1.0-py3-none-any.whl
             │                    │ 469.98 Kb  	 installer-1.1.0.tar.gz
             │ download  portage://dev-python/jaraco-context-6.1.2
             │           └─ file ─┤ 16.41 Kb  	 jaraco_context-6.1.2.tar.gz
             │ download  portage://dev-python/jaraco-functools-4.6.0
             │           └─ file ─┤ 20.35 Kb  	 jaraco_functools-4.6.0.tar.gz
             │ download  portage://dev-python/jaraco-text-4.3.0
             │           └─ file ─┤ 20.19 Kb  	 jaraco_text-4.3.0.tar.gz
             │ download  portage://dev-python/more-itertools-11.2.1
             │           └─ file ─┤ 150.52 Kb  	 more_itertools-11.2.1.tar.gz
             │ download  portage://dev-python/packaging-26.3
             │           └─ file ─┤ 306.07 Kb  	 packaging-26.3.tar.gz
             │ download  portage://dev-python/platformdirs-4.13.5
             │           └─ file ─┤ 60.90 Kb  	 platformdirs-4.13.5.tar.gz
             │ download  portage://dev-python/ply-3.11-r2
             │           └─ file ─┤ 3.74 Kb  	 ply-3.11-py3.12-assert.patch.xz
             │                    │ 155.40 Kb  	 ply-3.11.tar.gz
             │ download  portage://dev-python/pycparser-3.11
             │           └─ file ─┤ 111.13 Kb  	 pycparser-3.11.tar.gz
             │ download  portage://dev-python/setuptools-84.0.0
             │           └─ file ─┤ 1.11 Mb  	 setuptools-84.0.0.tar.gz
             │ download  portage://dev-python/wheel-0.48.0
             │           └─ file ─┤ 64.91 Kb  	 wheel-0.48.0.tar.gz
             │ download  portage://dev-python/zstandard-0.25.0
             │           └─ file ─┤ 776.81 Kb  	 python-zstandard-0.25.0.gh.tar.gz

Total: 16 actions (1 keyword, 15 downloads), grouped into 2 steps.
       4.25 Mb to be downloaded.



>>> Assumptions taken during proving & planning:

  Keyword acceptance (1 package):
  Add to /etc/portage/package.accept_keywords:
    dev-vcs/mercurial **


Error The proof for your build plan contains domain assumptions. Please verify:


>>> Domain assumptions

- Model unavailable: 
  dev-vcs/mercurial — dependency model could not be built
  (some dependencies may be missing from the tree or keyword-filtered)