Variable resolution and dynamic lookup fixes #2181

Job	Run time
cargo-deny (advisories)	33s
cargo-deny (advisories)	29s
cargo-deny (bans licenses sources)	34s
cargo-deny (bans licenses sources)	36s
Create conformance report for `push` and `pull_request` events	9m 16s
Create conformance report for `push` and `pull_request` events	9m 50s
Build and Test (ubuntu-20.04)	7m 40s
Build and Test (ubuntu-20.04)	8m 1s
Build and Test (windows-latest)	11m 26s
Build and Test (windows-latest)	13m 34s
Build and Test (macos-latest)	9m 31s
Build and Test (macos-latest)	8m 12s
Create comparison report for `pull_request` event	50s
Create comparison report for `pull_request` event	45s
	1h 21m 17s

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