this derivation will be built:
  /nix/store/k6j8hv8bx7h0qlzbwg9xmmvsr2pvzry9-bcachefs-module-7.0.0-29-generic.drv
building '/nix/store/k6j8hv8bx7h0qlzbwg9xmmvsr2pvzry9-bcachefs-module-7.0.0-29-generic.drv'...