cargo-bisect-rustc
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Option to regress on any output change
Some more complicated situations do not allow one to find an example that cleanly succeeds/fails depending on rustc version. Especially when hacking on rustc is eg find an example that produces one error more/less than it should. Adding support for this situation by having an output that just reports any change as a regression would be useful.
Is this something that can be accomplished with "Testing with a script"? https://github.com/rust-lang/cargo-bisect-rustc/blob/95eaf5b24e00efa5ce5415ebdd6c8814dfc80720/TUTORIAL.md#testing-with-a-script