Summary

Implementation: #10383
Documentation: https://doc.rust-lang.org/nightly/cargo/reference/unstable.html#keep-going

This flag makes Cargo build as many crates in the dependency graph as possible, rather than aborting the build at the first one that fails to build.

Unresolved Issues

• Add -k short flag? According to @joshtriplett: "similar to make -k; the nature of this option is such that it'd should be easy for people to invoke"
• Reimplement https://github.com/dtolnay/trybuild using this feature, since this was the original motivating use case. See "Motivation" section of Unstable --keep-going flag #10383 (comment).

Future Extensions

• Josh suggests: "we may want to extend this option in the future to have more kinds of "keep going" behavior, such as deferring some compile-time errors to runtime panics so that the test suite can run"

About tracking issues

Tracking issues are used to record the overall progress of implementation.
They are also used as hubs connecting to other relevant issues, e.g., bugs or open design questions.
A tracking issue is however not meant for large scale discussion, questions, or bug reports about a feature.
Instead, open a dedicated issue for the specific matter and add the relevant feature gate label.