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I thought Cargo did a simple SemVer check and then imported both if there was a conflict My understanding was NP is when you test and rebuild the graph over an

• ryangibb 2mo ago
  > I thought Cargo did a simple SemVer check and then imported both if there was a conflict Not quite, Cargo only allows multiple versions of a package when they are semver incompatible (i.e. have different major versions). If you allow multiple versions of a package you get some quite gnarly errors if you try to share values between them. The rationale of allowing semver incompatible versions is that they should be incompatible anyway. Cargo has an interesting proposal on private and public dependencies that allows you to say multiple versions are only allowed when they aren't visible from the same part of the dependency graph https://rust-lang.github.io/rfcs/3516-public-private-dependencies.html https://rust-lang.github.io/rfcs/3516-public-private-depende...