this derivation will be built:
  /nix/store/6ivn2791vfa0dbc2s5ksybn0dr6m6xzv-bcachefs-module-7.0.0-39-generic.drv
building '/nix/store/6ivn2791vfa0dbc2s5ksybn0dr6m6xzv-bcachefs-module-7.0.0-39-generic.drv'...