Build issues - Githubissues

Hey :wave: I'm looking to use your crate to model an issue tracker and I'm pretty sure rose trees are exactly what I need :grin:

Unfortunately, when I try to build the project I'm getting an error:

[nix-shell:~/Developer/rose_tree-rs]$ cargo build
    Updating crates.io index
   Compiling fixedbitset v0.1.9
   Compiling petgraph v0.1.18
error[E0034]: multiple applicable items in scope
   --> /home/haptop/.cargo/registry/src/github.com-1ecc6299db9ec823/petgraph-0.1.18/src/graph.rs:404:17
    |
404 |         assert!(Ix::max().index() == !0 || NodeIndex::end() != node_idx);
    |                 ^^^^^^^ multiple `max` found
    |
note: candidate #1 is defined in the trait `graph::IndexType`
   --> /home/haptop/.cargo/registry/src/github.com-1ecc6299db9ec823/petgraph-0.1.18/src/graph.rs:28:5
    |
28  |     fn max() -> Self;
    |     ^^^^^^^^^^^^^^^^^
    = help: to disambiguate the method call, write `graph::IndexType::max(...)` instead
note: candidate #2 is defined in the trait `std::cmp::Ord`
    = help: to disambiguate the method call, write `std::cmp::Ord::max(...)` instead

error[E0034]: multiple applicable items in scope
   --> /home/haptop/.cargo/registry/src/github.com-1ecc6299db9ec823/petgraph-0.1.18/src/graph.rs:438:17
    |
438 |         assert!(Ix::max().index() == !0 || EdgeIndex::end() != edge_idx);
    |                 ^^^^^^^ multiple `max` found
    |
note: candidate #1 is defined in the trait `graph::IndexType`
   --> /home/haptop/.cargo/registry/src/github.com-1ecc6299db9ec823/petgraph-0.1.18/src/graph.rs:28:5
    |
28  |     fn max() -> Self;
    |     ^^^^^^^^^^^^^^^^^
    = help: to disambiguate the method call, write `graph::IndexType::max(...)` instead
note: candidate #2 is defined in the trait `std::cmp::Ord`
    = help: to disambiguate the method call, write `std::cmp::Ord::max(...)` instead

error: aborting due to 2 previous errors

For more information about this error, try `rustc --explain E0034`.
error: could not compile `petgraph`.

To learn more, run the command again with --verbose.

My rustc version:

[nix-shell:~/Developer/rose_tree-rs]$ rustc --version
rustc 1.40.0 (73528e339 2019-12-16)

I'm going to keep digging, but wanted to post this as a first heads up :ok_hand:

mitchmindtree / rose_tree-rs

Build issues #3