Automatic toolchain upgrade to nightly-2025-09-06

[github-actions]

Update Rust toolchain from nightly-2025-09-05 to nightly-2025-09-06 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@af00ff2 up to
rust-lang/rust@6c699a3. The log
for this commit range is:

https://github.com/rust-lang/rust/commit/6c699a3723 Auto merge of #146255 - fmease:rollup-1v0kp8i, r=fmease

rust-lang/rust@55a62d57ed Rollup merge of #146250 - fmease:bump-stage0-rustfmt, r=Mark-Simulacrum
rust-lang/rust@8f3801f1af Rollup merge of #146243 - matthiaskrgr:declone, r=lqd
rust-lang/rust@56d99b1a7c Rollup merge of #146242 - GuillaumeGomez:rustdoc-gui-scrape, r=lolbinarycat
rust-lang/rust@910d6be9a4 Rollup merge of #146241 - hkBst:context-1, r=jieyouxu
rust-lang/rust@d82ee660d6 Rollup merge of #146234 - hkBst:file-generated-header, r=tgross35
rust-lang/rust@690753f7d4 Rollup merge of #146225 - Jules-Bertholet:simplify-float-midpoint, r=tgross35
rust-lang/rust@1c2d264eb0 Rollup merge of #146144 - heiher:entry-func-features, r=petrochenkov
rust-lang/rust@7e189a00eb Rollup merge of #146041 - lolbinarycat:tidy-escheck-bless, r=Kobzol
rust-lang/rust@9edce86bbd Rollup merge of #145735 - joshtriplett:style-guide-trailing-whitespace, r=joshtriplett
rust-lang/rust@90f51016a6 Rollup merge of #139113 - folkertdev:sanitizer-unstable-book-check-block, r=rcvalle
rust-lang/rust@349fbba24f Rollup merge of #138944 - madsmtm:apple_os_version_check, r=tgross35
rust-lang/rust@33baaafa34 Bump stage0 rustfmt
rust-lang/rust@99317ef14d Auto merge of #146121 - Muscraft:filter-suggestion-parts, r=petrochenkov
rust-lang/rust@81042523c6 remove couple of clones
rust-lang/rust@b6f8824315 Ensure that --html-after-content option is used to check scrape_examples_ice rustdoc GUI test
rust-lang/rust@0e2224b1bf rustc_infer: change top-level doc comment to inner
rust-lang/rust@9cd272dc85 Auto merge of #146044 - estebank:issue-88727, r=chenyukang
rust-lang/rust@98e10290c9 change file-is-generated doc comment to inner
rust-lang/rust@c559c4a741 Auto merge of #146224 - tgross35:rollup-1bgjms3, r=tgross35
rust-lang/rust@bc17bcdef0 Simplify {f16, f32, f54, f128}::midpoint()
rust-lang/rust@8ff60a6302 Rollup merge of #146217 - lukas-code:suggest-new-ice, r=compiler-errors
rust-lang/rust@7fc547c4f2 Rollup merge of #146207 - alexcrichton:wasip2-stdio, r=juntyr
rust-lang/rust@db5cc29d4f Rollup merge of #146152 - rperier:unify_and_dedup_algebraic_float_tests, r=tgross35
rust-lang/rust@3b8d41161e Rollup merge of #145709 - heiher:issue-145692-1, r=jackh726
rust-lang/rust@1a6cfacd8e Rollup merge of #144342 - Qelxiros:exact-bitshifts, r=tgross35
rust-lang/rust@ad85bc524b Auto merge of #144737 - petrochenkov:extprelcache, r=davidtwco
rust-lang/rust@91edc3ebcc Auto merge of #146218 - flip1995:clippy-subtree-update, r=Manishearth
rust-lang/rust@b307a1146b fix: Filter suggestion parts that match existing code
rust-lang/rust@f196f50d66 chore: Remove redundant disjoint spans assert
rust-lang/rust@81557349be refactor: Move assert for disjoint substitution spans
rust-lang/rust@b3cfb8faf8 Auto merge of #138736 - azhogin:azhogin/sanitizers-target-modificators, r=rcvalle