this derivation will be built:
  /nix/store/0bbcpv52qyq6aj812w6wry2xqkdnlhww-bcachefs-module-7.0.0-39-generic.drv
building '/nix/store/0bbcpv52qyq6aj812w6wry2xqkdnlhww-bcachefs-module-7.0.0-39-generic.drv'...