Fix clippy::implicit_clone

[SchahinRohani]

How Has This Been Tested?

bazel test ...

Checklist

• Updated documentation if needed
• Tests added/amended
• bazel test //... passes locally
• PR is contained in a single commit, using git amend see some docs

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This change is 

[SchahinRohani]

+@aaronmondal +@allada

Reviewable status: 0 of 2 LGTMs obtained, and 0 of 5 files reviewed (waiting on @aaronmondal and @allada)

[aaronmondal]

Reviewed 5 of 5 files at r1, all commit messages.
Reviewable status: 1 of 2 LGTMs obtained, and all files reviewed (waiting on @allada)

[SchahinRohani]

Reviewed 2 of 3 files at r2, 1 of 1 files at r3, all commit messages.
Reviewable status: complete! 1 of 1 LGTMs obtained, and all files reviewed