Crater run for --check-cfg (and Cargo -Zcheck-cfg).
Command to be used: @craterbot run name=check-cfg mode=check start=nightly-2024-02-05 end=nightly-2024-02-05+cargoflags=-Zcheck-cfg+rustflags=-Dunexpected_cfgs
@rustbot label +F-check-cfg -needs-triage