this derivation will be built:
  /nix/store/n2r4zyn71rw56rfvy28rdxi1jssssqjh-bcachefs-module-7.0.0-31-generic.drv
building '/nix/store/n2r4zyn71rw56rfvy28rdxi1jssssqjh-bcachefs-module-7.0.0-31-generic.drv'...