macros: simplify compile-fail tests #3084

Job	Run time
Run shellcheck on scripts	7s
markdown lint	11s
Check compilation (stable)	15s
Check Rust Formatting	24s
configlet lint	6s
Run repository tests	59s
Check exercises on nightly (benchmark enabled)	13s
Clippy	17s
Check compilation (beta)	16s
	2m 48s

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