Auto merge of #1259 - rust-lang:dependabot/cargo/cargo_metadata-0.7.1, r=Xanewok

Bump cargo_metadata from 0.7.0 to 0.7.1

Bumps [cargo_metadata](https://github.com/oli-obk/cargo_metadata) from 0.7.0 to 0.7.1.
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<summary>Commits</summary>

- See full diff in [compare view](https://github.com/oli-obk/cargo_metadata/commits)
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[![Dependabot compatibility score](https://api.dependabot.com/badges/compatibility_score?dependency-name=cargo_metadata&package-manager=cargo&previous-version=0.7.0&new-version=0.7.1)](https://dependabot.com/compatibility-score.html?dependency-name=cargo_metadata&package-manager=cargo&previous-version=0.7.0&new-version=0.7.1)

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Author: bors