Tracking issue for `-Zterminal-urls`

This is a tracking issue for the MCP "-Zterminal-urls" (https://github.com/rust-lang/compiler-team/issues/587).

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.
Discussion comments will get marked as off-topic or deleted.
Repeated discussions on the tracking issue may lead to the tracking issue getting locked.

Steps

• Implementation:
  • https://github.com/rust-lang/rust/pull/107838
• Adjust documentation (see instructions on rustc-dev-guide)
• Stabilization PR (see instructions on rustc-dev-guide)

Unresolved Questions

• Has T-compiler coordinated with T-cargo on their concerns? https://github.com/rust-lang/compiler-team/issues/587#issuecomment-1850436355
• What should we include links for?
  • Currently, error codes: https://github.com/rust-lang/rust/pull/107838
  • Lints? https://github.com/rust-lang/rust/issues/125528
• Should we allow configuration of link amounts? Is that a non-boolean argument?
• Can we autodetect terminal support? Should we?

Start with the linked MCP issue and implementation PR #107838, then read the rustc-dev-guide stabilization and documentation instructions. The remaining work includes documentation and a stabilization PR, but the tracking issue also lists unresolved questions about links, configuration, terminal support, and coordination that need answers before completion.