this derivation will be built:
  /nix/store/vj9b5s0smahbpfr9qjhwc72fafcdh6l3-bcachefs-module-7.0.0-39-generic.drv
building '/nix/store/vj9b5s0smahbpfr9qjhwc72fafcdh6l3-bcachefs-module-7.0.0-39-generic.drv'...