this derivation will be built: /nix/store/2k3iai2hp1q4am8r0plxnwqqjdlaq6q7-bcachefs-module-7.0.0-31-generic.drv building '/nix/store/2k3iai2hp1q4am8r0plxnwqqjdlaq6q7-bcachefs-module-7.0.0-31-generic.drv'...