Rollup of 16 pull requests

Successful merges:

 - #136429 (GCI: At their def site, actually wfcheck the where-clause & always eval free lifetime-generic constants)
 - #138139 (Emit warning while outputs is not exe and prints linkage info)
 - #141104 (Test(fs): Fix `test_eq_windows_file_type` for Windows 7)
 - #141477 (Path::with_extension: show that it adds an extension where one did no…)
 - #141533 (clean up old rintf leftovers)
 - #141612 (Call out possibility of invariant result in variance markers)
 - #141638 (Use `builtin_index` instead of hand-rolling it)
 - #141643 (ci: verify that codebuild jobs use ghcr.io)
 - #141675 (Reorder `ast::ItemKind::{Struct,Enum,Union}` fields.)
 - #141680 (replace TraitRef link memory.md)
 - #141682 (interpret/allocation: Fixup type for `alloc_bytes`)
 - #141683 (Handle ed2021 precise capturing of unsafe binder)
 - #141684 (rustbook: Bump versions of `onig` and `onig_sys`)
 - #141687 (core: unstably expose atomic_compare_exchange so stdarch can use it)
 - #141690 (Add `rustc_diagnostic_item` to `sys::Mutex` methods)
 - #141702 (Add eholk to compiler reviewer rotation)

r? `@ghost`
`@rustbot` modify labels: rollup

Rollup merge of #141638 - oli-obk:builtin-index, r=lcnr

Use `builtin_index` instead of hand-rolling it

Just using the dedicated method more

Use `builtin_index` instead of hand-rolling it

Just using the dedicated method more

Rollup of 16 pull requests

Successful merges:

 - rust-lang/rust#136429 (GCI: At their def site, actually wfcheck the where-clause & always eval free lifetime-generic constants)
 - rust-lang/rust#138139 (Emit warning while outputs is not exe and prints linkage info)
 - rust-lang/rust#141104 (Test(fs): Fix `test_eq_windows_file_type` for Windows 7)
 - rust-lang/rust#141477 (Path::with_extension: show that it adds an extension where one did no…)
 - rust-lang/rust#141533 (clean up old rintf leftovers)
 - rust-lang/rust#141612 (Call out possibility of invariant result in variance markers)
 - rust-lang/rust#141638 (Use `builtin_index` instead of hand-rolling it)
 - rust-lang/rust#141643 (ci: verify that codebuild jobs use ghcr.io)
 - rust-lang/rust#141675 (Reorder `ast::ItemKind::{Struct,Enum,Union}` fields.)
 - rust-lang/rust#141680 (replace TraitRef link memory.md)
 - rust-lang/rust#141682 (interpret/allocation: Fixup type for `alloc_bytes`)
 - rust-lang/rust#141683 (Handle ed2021 precise capturing of unsafe binder)
 - rust-lang/rust#141684 (rustbook: Bump versions of `onig` and `onig_sys`)
 - rust-lang/rust#141687 (core: unstably expose atomic_compare_exchange so stdarch can use it)
 - rust-lang/rust#141690 (Add `rustc_diagnostic_item` to `sys::Mutex` methods)
 - rust-lang/rust#141702 (Add eholk to compiler reviewer rotation)

r? `@ghost`
`@rustbot` modify labels: rollup