this derivation will be built: /nix/store/c793y0yplj2maqir6mmrc5fzxr10fcgg-bcachefs-module-7.0.0-39-generic.drv building '/nix/store/c793y0yplj2maqir6mmrc5fzxr10fcgg-bcachefs-module-7.0.0-39-generic.drv'...