[beta-1.77] Backport ignore `cargo::rustc-check-cfg`#13500

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bors merged 2 commits intorust-lang:rust-1.77.0from ehuss:beta-check-cfg

Feb 29, 2024

+6-15

Commits on Feb 28, 2024

Auto merge of rust-lang#13438 - Urgau:check-cfg-msrv-annoyance, r=ehuss

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Auto merge of rust-lang#13455 - surechen:for_rustc_117772, r=weihanglo

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