Scheduled CI of rustc-dev-guide fails with 429 Too Many Requests

[sobolevn]

 error: Server returned 429 Too Many Requests for https://github.com/rust-lang/rustc-dev-guide/issues/1157
    ┌─ debugging-support-in-rustc.md:355:55
    │
355 │ **TODO**: Check the location of the demangler source. [\#1157](https://github.com/rust-lang/rustc-dev-guide/issues/1157)
    │                                                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Server returned 429 Too Many Requests for https://github.com/rust-lang/rustc-dev-guide/issues/1157


...

Error: -09 18:05:23 [ERROR] (mdbook::renderer): Renderer exited with non-zero return code.
Error: -09 18:05:23 [ERROR] (mdbook::utils): Error: Rendering failed
Error: -09 18:05:23 [ERROR] (mdbook::utils): 	Caused By: The "linkcheck" renderer failed
Error: Process completed with exit code 101.

Link: https://github.com/rust-lang/rustc-dev-guide/actions/runs/1819650305

Version: 0.7.2
Source:

• https://github.com/rust-lang/rustc-dev-guide/blob/master/.github/workflows/ci.yml
• https://github.com/rust-lang/rustc-dev-guide/blob/master/ci/linkcheck.sh

[Michael-F-Bryan]

Are you getting rate-limited by GitHub?

[sobolevn]

Yes, looks like this is the case.