I just happened to notice that there’s two different versions of the same crate when compiling the engine…?!?

Compiling pin-project v1.0.8
   Compiling prost-types v0.9.0
   Compiling pin-project v0.4.27
   Compiling prost-build v0.9.0

Could that be due to dependencies from other crates, like the

prost-types

one in between there..?

yea, rust allows this. it attempts to reduce the total number, but different subgraphs can have different versions if they can’t be unified

cargo tree

will help you explore/debug 🙂