DistutilsNonPEP517Build: version 0.0.5_p20210208: uses deprecated non-PEP517 build mode, please switch to DISTUTILS_USE_PEP517=... RequiredUseDefaults: version 0.0.5_p20210208: profile: 'default/linux/amd64/17.0/musl' (44 total) failed REQUIRED_USE: python_targets_python3_9