Update books

[rustbot]

rust-lang/reference

15 commits in ec78de0ffe2f8344bd0e222b17ac7a7d32dc7a26..11f84ce150bed12af4331d2110c75590c7b46261
2025-12-19 04:11:52 UTC to 2025-12-16 18:21:13 UTC

• Document how closure capturing interacts with discriminant reads (Document how closure capturing interacts with discriminant reads reference#1837)
• operator-expr: remove stray word in footnote (operator-expr: remove stray word in footnote reference#2118)
• await-expr: add a missing space (await-expr: add a missing space reference#2120)
• attributes: add missing punctuation to instruction_set (attributes: add missing punctuation to instruction_set reference#2117)
• associated-items: add missing periods (associated-items: add missing periods reference#2116)
• Move tools into a consolidated cargo workspace (Move tools into a consolidated cargo workspace reference#2115)
• Unwrap all of the lexical chapters (Unwrap all of the lexical chapters reference#2113)
• Unwrap const_eval.md (Unwrap const_eval.md reference#2112)
• Add section on expansion-time (early) name resolution (Add section on expansion-time (early) name resolution reference#2055)
• const_eval.md: add missing word (const_eval.md: add missing word reference#2068)
• path-expr.md: use a more suitable punctuation (path-expr.md: use a more suitable punctuation reference#2082)
• items: clarify label for type-aliases documentation (items: clarify label for type-aliases documentation reference#2110)
• do not mix singular and plural (do not mix singular and plural reference#2101)
• external-blocks: add missing "and" in list (external-blocks: add missing "and" in list reference#2111)
• conditional-compilation: add a space in cfg.cfg_attr.attribute-list (conditional-compilation: add a space in cfg.cfg_attr.attribute-list reference#2109)

[rustbot]

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[rustbot]

⚠️ Warning ⚠️

• Some commits in this PR modify submodules.

  If this was not intentional, see I changed a submodule on accident in the rustc dev guide.

[ehuss]

@bors r+ rollup

[bors]

📌 Commit 7e167d1 has been approved by ehuss

It is now in the queue for this repository.

[JonathanBrouwer]

@bors try jobs=x86_64-gnu-distcheck

[rust-bors]

💔 Test for 86ef94e failed: CI. Failed jobs:

• try - x86_64-gnu-distcheck (web logs, enhanced plaintext logs)

[JonathanBrouwer]

@bors r-

[rust-log-analyzer]

The job x86_64-gnu-distcheck failed! Check out the build log: (web) (plain enhanced) (plain)

Click to see the possible cause of the failure (guessed by this bot)

Caused by:
  `workspace.package.edition` was not defined
Bootstrap failed while executing `test distcheck`
Command `/checkout/obj/build/x86_64-unknown-linux-gnu/stage0/bin/cargo vendor --versioned-dirs --sync /checkout/src/tools/cargo/Cargo.toml --sync /checkout/src/tools/clippy/clippy_test_deps/Cargo.toml --sync /checkout/src/tools/rust-analyzer/Cargo.toml --sync /checkout/compiler/rustc_codegen_cranelift/Cargo.toml --sync /checkout/compiler/rustc_codegen_gcc/Cargo.toml --sync /checkout/library/Cargo.toml --sync /checkout/src/bootstrap/Cargo.toml --sync /checkout/src/tools/rustbook/Cargo.toml --sync /checkout/src/tools/rustc-perf/Cargo.toml --sync /checkout/src/tools/opt-dist/Cargo.toml --sync /checkout/src/doc/book/packages/trpl/Cargo.toml --sync /checkout/./src/tools/rustc-perf/collector/compile-benchmarks/syn-2.0.101/Cargo.toml --sync /checkout/./src/tools/rustc-perf/collector/compile-benchmarks/cargo-0.87.1/Cargo.toml --sync /checkout/./src/tools/rustc-perf/collector/compile-benchmarks/serde-1.0.219/Cargo.toml --sync /checkout/./src/tools/rustc-perf/collector/compile-benchmarks/ripgrep-14.1.1/Cargo.toml --sync /checkout/./src/tools/rustc-perf/collector/compile-benchmarks/regex-automata-0.4.8/Cargo.toml --sync /checkout/./src/tools/rustc-perf/collector/compile-benchmarks/clap_derive-4.5.32/Cargo.toml --sync /checkout/./src/tools/rustc-perf/collector/compile-benchmarks/hyper-1.6.0/Cargo.toml --sync /checkout/./src/tools/rustc-perf/collector/compile-benchmarks/externs/Cargo.toml --sync /checkout/./src/tools/rustc-perf/collector/compile-benchmarks/ctfe-stress-5/Cargo.toml --sync /checkout/./src/tools/rustc-perf/collector/compile-benchmarks/cargo-0.87.1/Cargo.toml --sync /checkout/./src/tools/rustc-perf/collector/compile-benchmarks/token-stream-stress/Cargo.toml --sync /checkout/./src/tools/rustc-perf/collector/compile-benchmarks/match-stress/Cargo.toml --sync /checkout/./src/tools/rustc-perf/collector/compile-benchmarks/tuple-stress/Cargo.toml --sync /checkout/./src/tools/rustc-perf/collector/compile-benchmarks/diesel-2.2.10/Cargo.toml --sync /checkout/./src/tools/rustc-perf/collector/compile-benchmarks/bitmaps-3.2.1/Cargo.toml --sync /checkout/./src/tools/rustc-perf/collector/compile-benchmarks/serde-1.0.219-new-solver/Cargo.toml vendor [workdir=/checkout/obj/build/tmp/tarball/rustc/src/image]` failed with exit code 101
Created at: src/bootstrap/src/core/build_steps/vendor.rs:82:23
Executed at: src/bootstrap/src/core/build_steps/vendor.rs:114:26

--- STDOUT vvv


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Build completed unsuccessfully in 0:00:28
  local time: Sun Dec 21 17:53:26 UTC 2025
  network time: Sun, 21 Dec 2025 17:53:26 GMT
##[error]Process completed with exit code 1.
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