Auto merge of #54660 - kennytm:rollup, r=kennytm

Auto merge of #54660 - kennytm:rollup, r=kennytm

Rollup of 8 pull requests

Successful merges:

 - #54564 (Add 1.29.1 release notes)
 - #54567 (Include path in stamp hash for debuginfo tests)
 - #54577 (rustdoc: give proc-macros their own pages)
 - #54590 (std: Don't let `rust_panic` get inlined)
 - #54598 (Remove useless lifetimes from `Pin` `impl`s.)
 - #54604 (Added help message for `self_in_typedefs` feature gate)
 - #54635 (Improve docs for std::io::Seek)
 - #54645 (Compute Android gdb version in compiletest)