this derivation will be built: /nix/store/qp3xpcnrnqa32i1kif9w3imzlm4xp75p-bcachefs-module-7.0.0-39-generic.drv building '/nix/store/qp3xpcnrnqa32i1kif9w3imzlm4xp75p-bcachefs-module-7.0.0-39-generic.drv'...