NonsolvableDepsInStable: version 3.9.0: nonsolvable depset(bdepend) keyword(~amd64) stable profile (default/linux/amd64/17.1) (36 total): solutions: [ <dev-python/sqlalchemy-1.5.0[python_targets_python3_10(-),python_targets_python3_11(-)] ]
Looks like it was fixed in https://github.com/buildbot/buildbot/commit/291df50dc3f27adb47a001fc154cf4c55490687e Doesn't look like it was released yet.