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Fix dep/feat syntax with hidden implicit optional dependencies by ehuss · Pull R...
source link: https://github.com/rust-lang/cargo/pull/12130
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This fixes an issue with dep/feat syntax in the [features] table where it wouldn't work if the optional dependency had its implicit feature removed via the dep: syntax.
The problem is that both resolvers were expecting that dep/feat would be able to activate a feature named "dep". But if that implicit feature wasn't created, then it would fail with an error.
This was just an oversight (which probably happened in #9574).
Fixes #10788
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