[github-actions]

Update Rust toolchain from nightly-2026-10-21 to nightly-2026-10-22 without any other source changes.

[github-actions]

This is an automatically generated pull request. If any of the CI checks fail,
manual intervention is required. In such a case, review the changes at
https://github.com/rust-lang/rust from
rust-lang/rust@19833af up to
rust-lang/rust@1a2c479. The log
for this commit range is:

https://github.com/rust-lang/rust/commit/1a2c4797ef Auto merge of #164708 - JonathanBrouwer:rollup-Td0LIV7, r=JonathanBrouwer

rust-lang/rust@0e758bed6c Rollup merge of #164696 - aerooneqq:default-for-newtype-index, r=petrochenkov
rust-lang/rust@935e9427ec Rollup merge of #164680 - zakrad:regr-test-154533, r=fee1-dead
rust-lang/rust@53d4374112 Rollup merge of #158076 - Sa4dUs:offload-region, r=ZuseZ4
rust-lang/rust@2f9346d979 Rollup merge of #164684 - maxdexh:partial-ord-chain-api-simplify, r=scottmcm
rust-lang/rust@364dc86a90 Rollup merge of #164620 - jakos-sec:fix-cfi-diag-recover, r=rcvalle
rust-lang/rust@db62934c85 Rollup merge of #164383 - sjwang05:issue-164376, r=estebank
rust-lang/rust@9ff9ee8a92 Remove redundant PartialOrd chaining methods
rust-lang/rust@fa0b453578 Auto merge of #164699 - JonathanBrouwer:rollup-AyVfkqV, r=JonathanBrouwer
rust-lang/rust@fe3fca0e6b Rollup merge of #164688 - RalfJung:qnx-test-remove-dir, r=Darksonn
rust-lang/rust@8b88e19f55 Rollup merge of #164681 - paradoxicalguy:tidy-clean-up, r=Kobzol
rust-lang/rust@c2bd350f4f Rollup merge of #164660 - mejrs:attr_doc, r=JonathanBrouwer
rust-lang/rust@675823f65f Rollup merge of #164656 - malezjaa:stabilize-windows-exit-code, r=JohnTitor
rust-lang/rust@f4c0f63399 Rollup merge of #164527 - GauravPawar101:fix/issue-164466, r=JohnTitor
rust-lang/rust@7658469ca8 Rollup merge of #164330 - charliermarsh:charlie/skip-redundant-abi-checks, r=adwinwhite
rust-lang/rust@47444f2d9f Rollup merge of #164329 - mejrs:lint_def_defaults, r=camelid
rust-lang/rust@77edf4631c Rollup merge of #162840 - RalfJung:tier-3-target-cpu, r=mati865
rust-lang/rust@d308c2e3a4 Rollup merge of #162369 - kiana1kaslana:doc-recursion-limit-attribute, r=JohnTitor
rust-lang/rust@59d9a8fffb Rollup merge of #161253 - kpreid:neverref, r=clarfonthey
rust-lang/rust@614e669ff9 Rollup merge of #164457 - Walnut356:new_vec_test, r=Kobzol
rust-lang/rust@2ede6da6b3 Rollup merge of #163485 - cyrgani:builtin-macros-8, r=nnethercote
rust-lang/rust@5b3501dfdc Rollup merge of #162460 - Jamesbarford:feat/inline-always+target-feature-#2, r=nikic,traviscross
rust-lang/rust@91ad3f9c4a Add #[default] for newtype_index!
rust-lang/rust@20d5ccb224 re-enable test_dir_remove_dir test on QNX
rust-lang/rust@6a58677913 Auto merge of #164673 - jhpratt:rollup-kXeoG4o, r=jhpratt
rust-lang/rust@20205d6a10 Add regression test for async fn declared with #[eii]
rust-lang/rust@7409eb9818 Rollup merge of #164638 - Jules-Bertholet:mir-opt-bless, r=dianqk
rust-lang/rust@0a8a601e53 Rollup merge of #163180 - joshtriplett:chroot-docs, r=tgross35
rust-lang/rust@1e956a645d Rollup merge of #163338 - Amanieu:move-elimination/move-elimination, r=tmiasko
rust-lang/rust@0f9655e58d Rollup merge of #163575 - tgross35:abort-immediate-update, r=JohnTitor
rust-lang/rust@04dad185ae Rollup merge of #164672 - jieyouxu:jieyouxu/citool/dep-bump, r=Kobzol
rust-lang/rust@16475dedfa Bump rustls-webpki to 0.103.16 and webpki-roots to 1.0.10
rust-lang/rust@d016eb115d Implement AsMut<T> and AsRef<T> for !.
rust-lang/rust@1731faea0d Auto merge of #164662 - jhpratt:rollup-bulxEsP, r=jhpratt
rust-lang/rust@3e678395ed Wrap expected_ty for cfi-{diag,recover} in with_no_trimmed_paths
rust-lang/rust@df3db8372a Rollup merge of #164646 - jieyouxu:jieyouxu/force-rustfmt-subtree-change, r=Kobzol
rust-lang/rust@0fb516ae69 Rollup merge of #164641 - maxdexh:explode-or-smth-idk-i-use-php, r=jhpratt
rust-lang/rust@f4afc0b110 Rollup merge of #164629 - RalfJung:breakpoint-docs, r=tgross35
rust-lang/rust@ad2bdc1f6e Rollup merge of #164616 - whiplashvin:vecdeque-allocator-test, r=thomcc
rust-lang/rust@414d990430 Rollup merge of #164595 - Tess4552:attr-fn-trait-params, r=JonathanBrouwer
rust-lang/rust@7c88399346 Rollup merge of #164594 - GuillaumeGomez:intra-doc-deprecated, r=Urgau
rust-lang/rust@2013a33e3a Rollup merge of #164540 - bal-e:mini-macro-opts, r=nnethercote
rust-lang/rust@f0bb080ce1 Rollup merge of #164509 - RalfJung:assert-discriminant-layout, r=oli-obk
rust-lang/rust@ddb54cc708 Rollup merge of #164264 - caelyreth:fix-invalid-nan-float, r=jieyouxu
rust-lang/rust@af2ff28135 Rollup merge of #162668 - evan-dickinson:bitwise-not, r=JohnTitor
rust-lang/rust@14ff725fcc Rollup merge of #148842 - estebank:issue-142887, r=nnethercote
rust-lang/rust@b3d7b89820 Rollup merge of #164612 - tgross35:ppc-feature-detect-combine, r=programmerjake
rust-lang/rust@4bd3610f5b Rollup merge of #164611 - ywxt:int_bits, r=Amanieu
rust-lang/rust@f3bcca88ea Rollup merge of #164507 - susitsm:deterministic-hashmap-encode, r=petrochenkov
rust-lang/rust@fe5dc9e541 Rollup merge of #164488 - cuviper:skip0, r=JohnTitor
rust-lang/rust@c35f65ba4f Rollup merge of #163701 - RalfJung:read-dir-dir, r=the8472
rust-lang/rust@b384351feb Rollup merge of #163317 - bjorn3:lto_refactors22, r=nnethercote
rust-lang/rust@0baf5fb028 Rollup merge of #163104 - Walnut356:i_usize_typedef, r=mati865
rust-lang/rust@8b48b66ec5 Rollup merge of #163668 - aerooneqq:syntax-contexts-and-expansions-ids-remapping, r=petrochenkov
rust-lang/rust@5232c49873 Rollup merge of #163664 - Kobzol:bootstrap-but-this-time-for-real-2, r=jieyouxu