this derivation will be built:
  /nix/store/ymsh7a0y2w6c1z113alh9581h5vabj8x-bcachefs-module-7.0.0-30-generic.drv
building '/nix/store/ymsh7a0y2w6c1z113alh9581h5vabj8x-bcachefs-module-7.0.0-30-generic.drv'...