sometimes running cargo metadata can take a long time and it is not clear anything is happening

[gilescope]

would be great if when running metadata takes a long time, to give a hint that it has not just hung.

E.g. running it against master of https://github.com/AcalaNetwork/Acala.git for patching substrate. (I think this is aggravated by substrate repo getting fat)

[bkchr]

We can add this.

If you run with diener patch --path PATH_TO_THE_WORKSPACE_CARGO_TOML diener is not required to use cargo metadata for this.