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A dependency on `path = "."` should have a good error message · Issue...
source link: https://github.com/rust-lang/cargo/issues/9518
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In a package foo a [dev-dependencies] foo = { path = "." } should be an error.
As there is no use case for it, and it does not do what most people expect.
There are not many people that will try this, and there are few configurations that don't error already. So I don't think we need to get too fancy with the comparison. A check for a path "." would be a big step foreword.
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