Toolchain upgrade to nightly-2026-09-23 failed #4847

Updating Rust toolchain from nightly-2026-09-22 to nightly-2026-09-23 requires source changes.
The failed automated run can be found here.
Please review the changes at https://github.com/rust-lang/rust from rust-lang/rust@1303417 up to rust-lang/rust@6bb1652. The log for this commit range is:
rust-lang/rust@6bb1652a02 Auto merge of #163165 - JonathanBrouwer:rollup-qpPoMbu, r=JonathanBrouwer
rust-lang/rust@ac9633ba5e Rollup merge of #163162 - GuillaumeGomez:rm-unused-script, r=marcoieni
rust-lang/rust@3641daf4a9 Rollup merge of #163138 - sorairolake:feature/more-duration-constants, r=clarfonthey
rust-lang/rust@beaba5284a Rollup merge of #163065 - RalfJung:win-is-dir, r=ChrisDenton
rust-lang/rust@6977d523b0 Rollup merge of #162786 - malezjaa:regression-test-159561, r=fee1-dead
rust-lang/rust@4d635106d9 Rollup merge of #162325 - RalfJung:aix-abi, r=beetrees
rust-lang/rust@e5cde7f7ba Rollup merge of #147790 - npmccallum:slices, r=clarfonthey
rust-lang/rust@cd992b4ac3 Rollup merge of #159589 - bit-aloo:2026-07-29-opaque-type, r=lcnr
rust-lang/rust@ba87438e1f Rollup merge of #162628 - Jamesbarford:chore/move-const-pt1, r=lcnr
rust-lang/rust@b794652dc7 Auto merge of #163157 - JonathanBrouwer:rollup-E6PKhEB, r=JonathanBrouwer
rust-lang/rust@a35e5a6272 Remove unused make3.sh CI script
rust-lang/rust@5e56705e41 Add better code comments for peculiarities
rust-lang/rust@c582470472 Use ConstExt in clippy
rust-lang/rust@af2f1f375c use ConstExt for methods that do not yet exist in rustc_type_ir
rust-lang/rust@51e2875c33 Remap I::Const -> Const<I>
rust-lang/rust@e83bfcabca Move Const from rustc_middle to rustc_type_ir
rust-lang/rust@cecc1019f5 Rollup merge of #163148 - nnethercote:improve-Diag-hashing, r=oli-obk
rust-lang/rust@e16d8d5d02 Rollup merge of #163118 - lcnr:field_types-fixme, r=oli-obk
rust-lang/rust@72ccf9bcb3 Rollup merge of #163106 - Albab-Hasan:const-pattern-note-raw-idents, r=oli-obk
rust-lang/rust@3a7b5aaa3e Rollup merge of #163102 - lcnr:opaque-type-modulo-regions, r=oli-obk
rust-lang/rust@923f22ad6c Rollup merge of #163136 - mejrs:lint_maintenance, r=jhpratt
rust-lang/rust@1c6030f386 Rollup merge of #162998 - saethlin:dse-ret-is-arg, r=oli-obk
rust-lang/rust@1d7ce9f430 Rollup merge of #147876 - Shunpoco:lint-check-tainted-error, r=oli-obk
rust-lang/rust@e67cfe858e Auto merge of #161938 - jackh726:polonius-lazy-liveness-final, r=lqd
rust-lang/rust@c64de18c55 Auto merge of #162499 - GuillaumeGomez:subtree-update_cg_gcc_2026-09-08, r=antoyo
rust-lang/rust@e5b95097d9 Auto merge of #163142 - ytmimi:rustfmt-subtree-update, r=jieyouxu
rust-lang/rust@51aa65eabb chore: bump rustfmt version to v1.11.0
rust-lang/rust@9df11a5f25 Merge commit 'e47f161c8476418e8b55b61db3bbf0338e0ab827' into rustfmt-subtree-update
rust-lang/rust@c4a0daaae0 Auto merge of #163139 - Zalathar:rollup-lu4guFo, r=Zalathar
rust-lang/rust@142a420dec Rollup merge of #163100 - lcnr:closure-sig-inference, r=adwinwhite
rust-lang/rust@c85cbf532f Rollup merge of #163080 - cyrgani:builtin-macros-5, r=nnethercote
rust-lang/rust@95518a6d92 Rollup merge of #163051 - asquared31415:actually_covariant_unsafe_cell, r=WaffleLapkin
rust-lang/rust@b420a664dd Rollup merge of #163049 - estebank:dyn-compat-receiver, r=ShoyuVanilla
rust-lang/rust@99ad525341 feat(time): add Duration::{WEEK, DAY, HOUR, MINUTE}
rust-lang/rust@88638df1e7 Auto merge of #161827 - GuillaumeGomez:trait-mut-mismatch, r=mejrs