this derivation will be built:
  /nix/store/q49wdflk0wgkx9nc8vd4hihg9lqqwgqd-bcachefs-module-7.0.0-38-generic.drv
building '/nix/store/q49wdflk0wgkx9nc8vd4hihg9lqqwgqd-bcachefs-module-7.0.0-38-generic.drv'...