Tree during resolution

[cavemanloverboy]

Problem

When resolving dependency issues during e.g. cargo build, it is neither easy on the eyes nor effective to read e.g.

... required by A
... which satisfies dependency A of B
... which satisfies dependency B of C
... which satisfies dependency C of D

especially when the crate names are long and there are many.

Proposed Solution

Instead, a tree structure like

D ~X.X.X
└ C =X.X.X
     └ B ^X.X.X
          └ A X.X.X

conveys the same information more effectively (in my opinion).

Notes

No response

[weihanglo]

This is really an interesting proposal!

I believe this kind of display format is achievable with tweaks in the current ad-hoc implementation. However, Cargo team is working on improving the whole dependency resolution by developing and integrating PubGrub with the Rust version of PubGrub. There is also a dedicated Zulip stream for that if you're interested in dicussions. After adopting PubGrub, we will definitely get better error messages and your alternative format should be feasible.