this derivation will be built:
  /nix/store/ck250y35qylgzdi68j1y5n0l6sq7xkxh-bcachefs-module-7.0.0-14-generic.drv
building '/nix/store/ck250y35qylgzdi68j1y5n0l6sq7xkxh-bcachefs-module-7.0.0-14-generic.drv'...