this derivation will be built: /nix/store/4c0x99i0k5b926avp2w2w3c8spjlp3w2-bcachefs-module-7.0.0-31-generic.drv building '/nix/store/4c0x99i0k5b926avp2w2w3c8spjlp3w2-bcachefs-module-7.0.0-31-generic.drv'...