Update books

[rustbot]

rust-embedded/book

1 commits in e88aa4403b4bf2071c8df9509160477e40179099..2463edeb8003c5743918b3739a9f6870b86396f5
2026-03-11 17:49:58 UTC to 2026-03-11 17:49:58 UTC

• Update teaching material duration for bare-metal Rust (Update teaching material duration for bare-metal Rust rust-embedded/book#409)

rust-lang/reference

7 commits in c49e89cc8c7c2c43ca625a8d5b7ad9a53a9ce978..7446bf9697c95d155eef33c6a9d91fbd29a5e359
2026-03-18 01:46:01 UTC to 2026-03-10 18:10:22 UTC

• Update must_use to use the attribute template (Update must_use to use the attribute template reference#1892)
• Add a rule that enum discriminants may not use generic parameters (Add a rule that enum discriminants may not use generic parameters reference#2206)
• Actually move out of Box in moving-out-of-Box test (Actually move out of Box in moving-out-of-Box test reference#2204)
• Add special cases and links relating to dereferencing boxes (Add special cases and links relating to dereferencing boxes reference#2075)
• Move shebang into its own subchapter (Move shebang into its own subchapter reference#2199)
• Fields of enums and unions should be allowed to overlap (Fields of enums and unions should be allowed to overlap reference#2168)
• [type layout] Clarify size and alignment of pointers to unsized types ([type layout] Clarify size and alignment of pointers to unsized types reference#2201)

[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

[rust-bors]

📌 Commit ae3d87c has been approved by ehuss

It is now in the queue for this repository.