Update books

[rustbot]

rust-lang/edition-guide

1 commits in 9cf5443d632673c4d41edad5e8ed8be86eeb3b8f..c3c0f0b3da26610138b7ba7663f60cd2c68cf184
2025-11-28 18:54:18 UTC to 2025-11-28 18:54:18 UTC

• Update to mdbook 0.5 (Update to mdbook 0.5 edition-guide#381)

rust-lang/nomicon

1 commits in 0fe83ab28985b99aba36a1f0dbde3e08286fefda..c4a05bb7aeb2bb1a70d65981faed559494f01d16
2025-11-28 23:32:00 UTC to 2025-11-28 23:32:00 UTC

• Update to mdbook 0.5 (Update to mdbook 0.5 nomicon#511)

rust-lang/reference

1 commits in f2ac173df9906de5c03b0ee50653321ef1c4ebe8..ef095872bd087be7b62b2cf82443110ea31651af
2025-11-29 14:20:45 UTC to 2025-11-29 14:20:45 UTC

• use oxford comma (use oxford comma reference#2099)

rust-lang/rust-by-example

1 commits in 111cfae2f9c3a43f7b0ff8fa68c51cc8f930637c..7d21279e40e8f0e91c2a22c5148dd2d745aef8b6
2025-12-01 18:02:09 UTC to 2025-12-01 18:02:09 UTC

• Merge pull request str::from_buf/c_str, etc. should be unsafe #1977 from ehuss/mdbook-0.5

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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.

[rust-log-analyzer]

The job aarch64-gnu-llvm-20-2 failed! Check out the build log: (web) (plain enhanced) (plain)

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

Rustbook (aarch64-unknown-linux-gnu) - rust-by-example
[2025-12-01T18:40:04Z WARN  mdbook::preprocess::cmd] The command wasn't found, is the "gettext" preprocessor installed?
[2025-12-01T18:40:04Z WARN  mdbook::preprocess::cmd]  Command: mdbook-gettext
Error: Rendering failed
 Caused By: Error rendering "head" line 11, col 17: Helper not found fa
 Caused By: Helper not found fa
Command `/checkout/obj/build/aarch64-unknown-linux-gnu/stage1-tools-bin/rustbook build /checkout/src/doc/rust-by-example -d /checkout/obj/build/aarch64-unknown-linux-gnu/doc/rust-by-example --rust-root /checkout` failed with exit code 101
Created at: src/bootstrap/src/core/build_steps/tool.rs:1612:23
Executed at: src/bootstrap/src/core/build_steps/doc.rs:176:18

Command has failed. Rerun with -v to see more details.
Bootstrap failed while executing `--stage 2 test --skip tests --skip coverage-map --skip coverage-run --skip library --skip tidyselftest`
Build completed unsuccessfully in 0:31:45
  local time: Mon Dec  1 18:40:04 UTC 2025
  network time: Mon, 01 Dec 2025 18:40:05 GMT
##[error]Process completed with exit code 1.