640648b893
Limit the number of names and values in check-cfg diagnostics The Rust for Linux [feedback](https://github.com/rust-lang/rust/issues/82450#issuecomment-1947462977) to the check-cfg Call for Testing, revealed a weakness in the check-cfg. They are unbounded and in the case RfL they have ~20k cfgs and having them printed (even once) is unbearable. This PR limits it to 35 (28 rustc well known + `feature` + `docsrs` + 5 custom) which feels like a good middle ground for regular users (i.e. Cargo users). When it goes over that limit print the N first with " and X more". ``@rustbot`` label +F-check-cfg
The Rust Programming Language
This is the main source code repository for Rust. It contains the compiler, standard library, and documentation.
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Table of Contents
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