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Cargo Dependency Resolution Issue Proof of Concept

This repo contains an empty Cargo project with two dependencies, sqlx 0.7.2 and vodozemac 0.4.0. If you try to build this project Cargo will claim a dependency conflict:

error: failed to select a version for `zeroize`.
    ... required by package `rsa v0.9.0`
    ... which satisfies dependency `rsa = "^0.9"` of package `sqlx-mysql v0.7.2`
    ... which satisfies dependency `sqlx-mysql = "=0.7.2"` of package `sqlx v0.7.2`
    ... which satisfies dependency `sqlx = "^0.7.2"` of package `orig v0.1.0 (<redacted for privacy>)`
versions that meet the requirements `^1.5` are: 1.6.0, 1.5.7, 1.5.6, 1.5.5, 1.5.4, 1.5.3

all possible versions conflict with previously selected packages.

  previously selected package `zeroize v1.3.0`
    ... which satisfies dependency `zeroize = "=1.3"` of package `x25519-dalek v1.2.0`
    ... which satisfies dependency `x25519-dalek = "^1.2.0"` of package `vodozemac v0.4.0`
    ... which satisfies dependency `vodozemac = "^0.4.0"` of package `orig v0.1.0 (<redacted for privacy>)`

failed to select a version for `zeroize` which could resolve this conflict

I believe this conflict is incorrect. sqlx with the feature set selected does not depend on sqlx-mysql, but cargo claims it does here. You can confirm this by removing the dependency on vodozemac and running cargo tree. Neither sqlx-mysql or zeroize will appear in the dependency tree.