[
  {
    "question": "Why must I implement Display before using trait methods?",
    "chunk_id": "book/ch20-02-advanced-traits.md#using-supertraits-16",
    "book": "book"
  },
  {
    "question": "How to return Result from a Rust constructor?",
    "chunk_id": "book/ch12-03-improving-error-handling-and-modularity.md#returning-a-result-instead-of-calling-panic-10",
    "book": "book"
  },
  {
    "question": "How do I force an asm! operand into eax?",
    "chunk_id": "rust-by-example/unsafe/asm.md#explicit-register-operands-6",
    "book": "rust-by-example"
  },
  {
    "question": "What syntax does #[link_name] use?",
    "chunk_id": "reference/items/external-blocks.md#the-link_name-attribute-13",
    "book": "reference"
  },
  {
    "question": "What does Pin<Box<T>> mean in Rust?",
    "chunk_id": "async-book/part-reference/pinning.md#pinning-1-5",
    "book": "async-book"
  },
  {
    "question": "is HashMap iteration order deterministic rust",
    "chunk_id": "book/ch08-03-hash-maps.md#accessing-values-in-a-hash-map-2",
    "book": "book"
  },
  {
    "question": "Do HashMap insertions move or copy values?",
    "chunk_id": "book/ch08-03-hash-maps.md#managing-ownership-in-hash-maps-3",
    "book": "book"
  },
  {
    "question": "What escape sequences does Rust support?",
    "chunk_id": "reference/tokens.md#suffixes-3",
    "book": "reference"
  },
  {
    "question": "where should I write tests when splitting into lib.rs",
    "chunk_id": "book/ch12-03-improving-error-handling-and-modularity.md#splitting-code-into-a-library-crate-20",
    "book": "book"
  },
  {
    "question": "How do I fix compile error using ? in main",
    "chunk_id": "book/ch09-02-recoverable-errors-with-result.md#where-to-use-the--operator-13",
    "book": "book"
  },
  {
    "question": "Where do Rust collections store their data?",
    "chunk_id": "book/ch08-00-common-collections.md#common-collections-0",
    "book": "book"
  },
  {
    "question": "Construct a struct using variables that share field names",
    "chunk_id": "book/ch05-01-defining-structs.md#using-the-field-init-shorthand-3",
    "book": "book"
  },
  {
    "question": "What does .lines() return in Rust?",
    "chunk_id": "rust-by-example/std_misc/file/read_lines.md#a-naive-approach-0",
    "book": "rust-by-example"
  },
  {
    "question": "How can I emit a NOP instruction from Rust?",
    "chunk_id": "rust-by-example/unsafe/asm.md#basic-usage-1",
    "book": "rust-by-example"
  },
  {
    "question": "How do I override one lint in a group?",
    "chunk_id": "reference/attributes/diagnostics.md#lint-groups-7",
    "book": "reference"
  },
  {
    "question": "Why does calling Trait::method() produce an ambiguous implementation error?",
    "chunk_id": "book/ch20-02-advanced-traits.md#disambiguating-between-identically-named-methods-10",
    "book": "book"
  },
  {
    "question": "How do I write a char literal in Rust?",
    "chunk_id": "book/ch03-02-data-types.md#the-character-type-7",
    "book": "book"
  },
  {
    "question": "How to use cargo --offline after downloading crates?",
    "chunk_id": "book/ch01-01-installation.md#working-offline-with-this-book-8",
    "book": "book"
  },
  {
    "question": "How do tuple structs differ from tuples?",
    "chunk_id": "book/ch05-01-defining-structs.md#creating-different-types-with-tuple-structs-6",
    "book": "book"
  },
  {
    "question": "Can I add attributes to elements of arrays or tuples?",
    "chunk_id": "reference/expressions.md#expression-attributes-13",
    "book": "reference"
  },
  {
    "question": "Can I pass a function pointer to inline asm?",
    "chunk_id": "reference/inline-assembly.md#register-operands-15",
    "book": "reference"
  },
  {
    "question": "How do I write raw C string literals with # delimiters?",
    "chunk_id": "reference/expressions/literal-expr.md#c-string-literal-expressions-13",
    "book": "reference"
  },
  {
    "question": "How do I change a PathBuf's filename in Rust?",
    "chunk_id": "rust-by-example/std_misc/path.md#path-1",
    "book": "rust-by-example"
  },
  {
    "question": "How do I handle grapheme clusters in Rust strings?",
    "chunk_id": "book/ch08-02-strings.md#iterating-over-strings-14",
    "book": "book"
  },
  {
    "question": "What panic strategies does Rust support?",
    "chunk_id": "reference/panic.md#standard-behavior-2",
    "book": "reference"
  },
  {
    "question": "How do I build a runnable Rust binary?",
    "chunk_id": "reference/linkage.md#linkage-0",
    "book": "reference"
  },
  {
    "question": "Why must Deref::deref return a reference instead of moving value?",
    "chunk_id": "book/ch15-02-deref.md#implementing-the-deref-trait-7",
    "book": "book"
  },
  {
    "question": "What does cargo publish do?",
    "chunk_id": "book/ch14-02-publishing-to-crates-io.md#publishing-to-cratesio-13",
    "book": "book"
  },
  {
    "question": "Why are mutable references problematic with the Iterator trait?",
    "chunk_id": "nomicon/borrow-splitting.md#splitting-borrows-1",
    "book": "nomicon"
  },
  {
    "question": "Do function parameters live for the whole function body?",
    "chunk_id": "reference/destructors.md#scopes-of-function-parameters-3",
    "book": "reference"
  },
  {
    "question": "What does #[repr(transparent)] guarantee about layout and ABI?",
    "chunk_id": "nomicon/other-reprs.md#reprtransparent-3",
    "book": "nomicon"
  },
  {
    "question": "How to call a trait method on a generic type parameter?",
    "chunk_id": "book/ch15-05-interior-mutability.md#testing-with-mock-objects-5",
    "book": "book"
  },
  {
    "question": "What does LLVM mean by \"allocation\"?",
    "chunk_id": "nomicon/vec/vec-alloc.md#allocating-memory-4",
    "book": "nomicon"
  },
  {
    "question": "Why should I clone an Rc to share ownership?",
    "chunk_id": "book/ch15-05-interior-mutability.md#allowing-multiple-owners-of-mutable-data-15",
    "book": "book"
  },
  {
    "question": "Does aborting a JoinHandle notify the future?",
    "chunk_id": "async-book/part-guide/more-async-await.md#cancellation-4",
    "book": "async-book"
  },
  {
    "question": "How can I ignore an iterator result to silence the warning?",
    "chunk_id": "book/ch13-02-iterators.md#methods-that-produce-other-iterators-5",
    "book": "book"
  },
  {
    "question": "How do I create a String from a literal?",
    "chunk_id": "book/ch04-01-what-is-ownership.md#the-string-type-7",
    "book": "book"
  },
  {
    "question": "Why shouldn't I use Rc for parent pointers?",
    "chunk_id": "book/ch15-06-reference-cycles.md#adding-a-reference-from-a-child-to-its-parent-8",
    "book": "book"
  },
  {
    "question": "How does Rust find space for heap allocations?",
    "chunk_id": "book/ch04-01-what-is-ownership.md#the-stack-and-the-heap-2",
    "book": "book"
  },
  {
    "question": "Does ? inside async block propagate to outer function?",
    "chunk_id": "async-book/part-guide/more-async-await.md#async-blocks-7",
    "book": "async-book"
  },
  {
    "question": "How are modules organized inside a crate?",
    "chunk_id": "reference/glossary.md#crate-9",
    "book": "reference"
  },
  {
    "question": "How do I pattern-match struct fields in a match expression?",
    "chunk_id": "reference/patterns.md#struct-patterns-20",
    "book": "reference"
  },
  {
    "question": "How do I require a generic type to implement a trait?",
    "chunk_id": "book/ch10-02-traits.md#defining-shared-behavior-with-traits-0",
    "book": "book"
  },
  {
    "question": "How does implementing Drop affect lifetimes and borrowing?",
    "chunk_id": "nomicon/dropck.md#drop-check-1",
    "book": "nomicon"
  },
  {
    "question": "Are NonNull and NonZero allowed to hold out-of-range values?",
    "chunk_id": "reference/behavior-considered-undefined.md#invalid-values-8",
    "book": "reference"
  },
  {
    "question": "How can I make two async tasks interleave on the executor?",
    "chunk_id": "book/ch17-03-more-futures.md#yielding-control-to-the-runtime-3",
    "book": "book"
  },
  {
    "question": "What does -> impl Trait mean in Rust?",
    "chunk_id": "book/ch10-02-traits.md#returning-types-that-implement-traits-12",
    "book": "book"
  },
  {
    "question": "How to store ints, floats, and strings in one Vec?",
    "chunk_id": "book/ch08-01-vectors.md#using-an-enum-to-store-multiple-types-8",
    "book": "book"
  },
  {
    "question": "How do references work in Rust?",
    "chunk_id": "nomicon/references.md#references-0",
    "book": "nomicon"
  },
  {
    "question": "How do I assign a block's result to a variable?",
    "chunk_id": "book/ch03-03-how-functions-work.md#statements-and-expressions-6",
    "book": "book"
  },
  {
    "question": "Can traits requiring Self: Sized be made into trait objects?",
    "chunk_id": "reference/items/traits.md#dyn-compatibility-3",
    "book": "reference"
  },
  {
    "question": "How are writes to union fields captured by closures?",
    "chunk_id": "reference/types/closure.md#union-fields-17",
    "book": "reference"
  },
  {
    "question": "How do I add attributes to a Rust module?",
    "chunk_id": "reference/items/modules.md#attributes-on-modules-4",
    "book": "reference"
  },
  {
    "question": "Can Rc and RefCell cause memory leaks?",
    "chunk_id": "book/ch15-06-reference-cycles.md#creating-a-reference-cycle-1",
    "book": "book"
  },
  {
    "question": "Why does an empty vector require a type annotation?",
    "chunk_id": "book/ch08-01-vectors.md#creating-a-new-vector-1",
    "book": "book"
  },
  {
    "question": "Why can I leave out lifetimes in function signatures?",
    "chunk_id": "rust-by-example/scope/lifetime/elision.md#elision-0",
    "book": "rust-by-example"
  },
  {
    "question": "Which crates are required for writing a custom derive macro?",
    "chunk_id": "book/ch20-05-macros.md#custom-derive-macros-9",
    "book": "book"
  },
  {
    "question": "How can I pad and align values with println! format specifiers?",
    "chunk_id": "rust-by-example/hello/print.md#formatted-print-1",
    "book": "rust-by-example"
  },
  {
    "question": "How to handle file I/O errors in Rust?",
    "chunk_id": "rust-by-example/std_misc/file/create.md#create-0",
    "book": "rust-by-example"
  },
  {
    "question": "When does conditional assignment still leave a variable uninitialized?",
    "chunk_id": "nomicon/checked-uninit.md#checked-uninitialized-memory-0",
    "book": "nomicon"
  },
  {
    "question": "Why can't I compare a String with an integer in Rust?",
    "chunk_id": "book/ch02-00-guessing-game-tutorial.md#comparing-the-guess-to-the-secret-number-25",
    "book": "book"
  },
  {
    "question": "What belongs in main versus lib.rs in Rust binaries",
    "chunk_id": "book/ch12-03-improving-error-handling-and-modularity.md#extracting-the-argument-parser-2",
    "book": "book"
  },
  {
    "question": "What tokens can appear after a $(...)* repetition in macro_rules?",
    "chunk_id": "reference/macro-ambiguity.md#examples-of-first-and-last-11",
    "book": "reference"
  },
  {
    "question": "Why use Box<T> for recursive types?",
    "chunk_id": "book/ch15-01-box.md#understanding-the-cons-list-2",
    "book": "book"
  },
  {
    "question": "How do I iterate over a slice of zero-sized types?",
    "chunk_id": "nomicon/vec/vec-zsts.md#iterating-zero-sized-types-5",
    "book": "nomicon"
  },
  {
    "question": "Does creating a future start concurrent execution?",
    "chunk_id": "book/ch17-02-concurrency-with-async.md#sending-data-between-two-tasks-using-message-passing-7",
    "book": "book"
  },
  {
    "question": "Why does Rust have unsafe traits?",
    "chunk_id": "nomicon/safe-unsafe-meaning.md#how-safe-and-unsafe-interact-3",
    "book": "nomicon"
  },
  {
    "question": "Does Rust drop the previous value before assignment?",
    "chunk_id": "reference/expressions/operator-expr.md#basic-assignments-30",
    "book": "reference"
  },
  {
    "question": "How to write a value into a raw pointer safely?",
    "chunk_id": "nomicon/vec/vec-insert-remove.md#insert-and-remove-0",
    "book": "nomicon"
  },
  {
    "question": "Can C++ exceptions unwind through Rust code and drop Rust values?",
    "chunk_id": "nomicon/ffi.md#c-throw-with-c-unwind-26",
    "book": "nomicon"
  },
  {
    "question": "How to bind an Option value inside a match arm?",
    "chunk_id": "reference/expressions/match-expr.md#match-guards-4",
    "book": "reference"
  },
  {
    "question": "How to avoid borrow checker issues when conditionally inserting into HashMap?",
    "chunk_id": "book/ch08-03-hash-maps.md#updating-a-value-based-on-the-old-value-5",
    "book": "book"
  },
  {
    "question": "Why am I getting unfulfilled_lint_expectations for #[expect]?",
    "chunk_id": "reference/attributes/diagnostics.md#the-expect-attribute-4",
    "book": "reference"
  },
  {
    "question": "How do I share setup code between Rust integration tests?",
    "chunk_id": "book/ch11-03-test-organization.md#integration-tests-for-binary-crates-9",
    "book": "book"
  },
  {
    "question": "How to check panic strategy at compile time in Rust?",
    "chunk_id": "rust-by-example/error/abort_unwind.md#abort-and-unwind-0",
    "book": "rust-by-example"
  },
  {
    "question": "How do I enable backtraces for failing Rust tests?",
    "chunk_id": "book/ch11-01-writing-tests.md#testing-equality-with-assert_eq-and-assert_ne-15",
    "book": "book"
  },
  {
    "question": "Does asm! readonly treat readable memory as an input?",
    "chunk_id": "reference/inline-assembly.md#rules-for-inline-assembly-40",
    "book": "reference"
  },
  {
    "question": "How do I rename variables when matching a struct?",
    "chunk_id": "rust-by-example/flow_control/match/destructuring/destructure_structures.md#structs-0",
    "book": "rust-by-example"
  },
  {
    "question": "How many bits is usize on my platform?",
    "chunk_id": "reference/types/numeric.md#machine-dependent-integer-types-2",
    "book": "reference"
  },
  {
    "question": "Do Rust closures borrow whole variables or only used fields?",
    "chunk_id": "reference/types/closure.md#capture-precision-4",
    "book": "reference"
  },
  {
    "question": "Why is use crate; illegal in Rust?",
    "chunk_id": "reference/items/use-declarations.md#restrictions-12",
    "book": "reference"
  },
  {
    "question": "How to have multiple producers on a Rust channel?",
    "chunk_id": "book/ch16-02-message-passing.md#creating-multiple-producers-8",
    "book": "book"
  },
  {
    "question": "How do I send a PR to the Rust Reference repo?",
    "chunk_id": "reference/introduction.md#contributing-6",
    "book": "reference"
  },
  {
    "question": "Do temporaries live until end of statement or end of expression?",
    "chunk_id": "reference/destructors.md#drop-scopes-2",
    "book": "reference"
  },
  {
    "question": "How to send closures through a channel to worker threads",
    "chunk_id": "book/ch21-02-multithreaded.md#implementing-the-execute-method-21",
    "book": "book"
  },
  {
    "question": "Does &'a dyn Trait imply dyn Trait + 'a?",
    "chunk_id": "reference/lifetime-elision.md#default-trait-object-lifetimes-5",
    "book": "reference"
  },
  {
    "question": "How to use an associated type to name a concrete type?",
    "chunk_id": "reference/items/associated-items.md#associated-types-5",
    "book": "reference"
  },
  {
    "question": "Which registers are caller-saved for x86-64 System V?",
    "chunk_id": "reference/inline-assembly.md#abi-clobbers-31",
    "book": "reference"
  },
  {
    "question": "Do iterator adapter methods like sum consume the iterator?",
    "chunk_id": "book/ch13-02-iterators.md#methods-that-consume-the-iterator-4",
    "book": "book"
  },
  {
    "question": "Does creating a slice from an arbitrary address cause UB?",
    "chunk_id": "book/ch20-01-unsafe-rust.md#using-extern-functions-to-call-external-code-11",
    "book": "book"
  },
  {
    "question": "why does &String coerce to &str",
    "chunk_id": "book/ch15-02-deref.md#using-deref-coercion-in-functions-and-methods-8",
    "book": "book"
  },
  {
    "question": "How do I instantiate enum variants in Rust?",
    "chunk_id": "reference/items/enumerations.md#enumerations-1",
    "book": "reference"
  },
  {
    "question": "Can local variables be aliased by existing references in Rust?",
    "chunk_id": "nomicon/aliasing.md#why-aliasing-matters-3",
    "book": "nomicon"
  },
  {
    "question": "How do I use an async channel in Rust?",
    "chunk_id": "book/ch17-02-concurrency-with-async.md#sending-data-between-two-tasks-using-message-passing-6",
    "book": "book"
  },
  {
    "question": "How do I write a byte string literal in Rust?",
    "chunk_id": "rust-by-example/std/str.md#literals-and-escapes-4",
    "book": "rust-by-example"
  },
  {
    "question": "Does MaybeUninit avoid drops on partially initialized data during panic?",
    "chunk_id": "nomicon/unchecked-uninit.md#unchecked-uninitialized-memory-3",
    "book": "nomicon"
  },
  {
    "question": "Do async functions run without being awaited?",
    "chunk_id": "async-book/intro.md#hello-world-3",
    "book": "async-book"
  },
  {
    "question": "Do structs with only Send fields implement Send automatically?",
    "chunk_id": "book/ch16-04-extensible-concurrency-sync-and-send.md#transferring-ownership-between-threads-1",
    "book": "book"
  },
  {
    "question": "Why must I add explicit lifetimes to functions returning references?",
    "chunk_id": "book/ch12-04-testing-the-librarys-functionality.md#writing-a-failing-test-2",
    "book": "book"
  },
  {
    "question": "What replaced try! in modern Rust?",
    "chunk_id": "rust-by-example/error/result/enter_question_mark.md#the-try-macro-1",
    "book": "rust-by-example"
  },
  {
    "question": "Can I have multiple panic handlers in dependencies?",
    "chunk_id": "reference/panic.md#the-panic_handler-attribute-1",
    "book": "reference"
  },
  {
    "question": "How do I share a value safely across threads in Rust?",
    "chunk_id": "book/ch16-03-shared-state.md#atomic-reference-counting-with-arct-8",
    "book": "book"
  },
  {
    "question": "Can I declare items inside a block expression?",
    "chunk_id": "reference/items.md#items-0",
    "book": "reference"
  },
  {
    "question": "How do I annotate lifetimes on function signatures?",
    "chunk_id": "book/ch10-03-lifetime-syntax.md#in-function-signatures-10",
    "book": "book"
  },
  {
    "question": "How do I call a function defined in the parent module?",
    "chunk_id": "book/ch07-03-paths-for-referring-to-an-item-in-the-module-tree.md#starting-relative-paths-with-super-10",
    "book": "book"
  },
  {
    "question": "How are repetitions (* and +) expressed in Rust grammar?",
    "chunk_id": "reference/notation.md#grammar-1",
    "book": "reference"
  },
  {
    "question": "How do I group related data in Rust?",
    "chunk_id": "book/ch04-03-slices.md#summary-11",
    "book": "book"
  },
  {
    "question": "What happens when Arc reference count overflows?",
    "chunk_id": "nomicon/arc-mutex/arc-clone.md#cloning-2",
    "book": "nomicon"
  },
  {
    "question": "What does cargo test output look like?",
    "chunk_id": "book/ch11-01-writing-tests.md#checking-results-with-assert-10",
    "book": "book"
  },
  {
    "question": "When should I mark a trait unsafe?",
    "chunk_id": "nomicon/safe-unsafe-meaning.md#how-safe-and-unsafe-interact-4",
    "book": "nomicon"
  },
  {
    "question": "How do I install Rust?",
    "chunk_id": "book/ch01-01-installation.md#installation-0",
    "book": "book"
  },
  {
    "question": "How do I declare a variable in Rust?",
    "chunk_id": "rust-by-example/expression.md#expressions-0",
    "book": "rust-by-example"
  },
  {
    "question": "How to find the largest number in a Vec<i32>?",
    "chunk_id": "book/ch10-00-generics.md#removing-duplication-by-extracting-a-function-1",
    "book": "book"
  },
  {
    "question": "How should I name labels in Rust inline assembly?",
    "chunk_id": "rust-by-example/unsafe/asm.md#labels-15",
    "book": "rust-by-example"
  },
  {
    "question": "How do I await a JoinHandle returned by tokio::spawn?",
    "chunk_id": "async-book/part-guide/async-await.md#joining-tasks-18",
    "book": "async-book"
  },
  {
    "question": "How do I specify parameters for a Rust function?",
    "chunk_id": "reference/items/functions.md#functions-1",
    "book": "reference"
  },
  {
    "question": "What's the difference between a package and a crate?",
    "chunk_id": "book/ch07-00-managing-growing-projects-with-packages-crates-and-modules.md#packages-crates-and-modules-1",
    "book": "book"
  },
  {
    "question": "How to interpret cargo test summary \"1 passed; 0 failed\"?",
    "chunk_id": "book/ch12-04-testing-the-librarys-functionality.md#storing-matching-lines-6",
    "book": "book"
  },
  {
    "question": "Does UnsafeCell cause invariance for lifetimes?",
    "chunk_id": "reference/subtyping.md#variance-3",
    "book": "reference"
  },
  {
    "question": "How do I return a newly constructed struct from a function?",
    "chunk_id": "book/ch05-01-defining-structs.md#defining-and-instantiating-structs-1",
    "book": "book"
  },
  {
    "question": "Why can't I derive Display for my type?",
    "chunk_id": "book/appendix-03-derivable-traits.md#appendix-c-derivable-traits-0",
    "book": "book"
  },
  {
    "question": "Why does Rust auto-deref or auto-ref when calling methods?",
    "chunk_id": "nomicon/dot-operator.md#the-dot-operator-0",
    "book": "nomicon"
  },
  {
    "question": "Does moving a non-Copy value make the original uninitialized?",
    "chunk_id": "nomicon/checked-uninit.md#checked-uninitialized-memory-1",
    "book": "nomicon"
  },
  {
    "question": "Can I use let bindings inside match arm guards?",
    "chunk_id": "reference/expressions/match-expr.md#match-expressions-0",
    "book": "reference"
  },
  {
    "question": "Are enum variants public by default?",
    "chunk_id": "reference/visibility-and-privacy.md#visibility-and-privacy-0",
    "book": "reference"
  },
  {
    "question": "How do I enable Clippy's pedantic lints as warnings crate-wide?",
    "chunk_id": "reference/attributes/diagnostics.md#tool-lint-attributes-8",
    "book": "reference"
  },
  {
    "question": "How do I return impl Future from a function?",
    "chunk_id": "book/ch17-01-futures-and-syntax.md#defining-the-page_title-function-7",
    "book": "book"
  },
  {
    "question": "Does cargo test show separate sections per integration test file?",
    "chunk_id": "book/ch11-03-test-organization.md#submodules-in-integration-tests-6",
    "book": "book"
  },
  {
    "question": "Can Drop leave my struct in an invalid state?",
    "chunk_id": "nomicon/destructors.md#destructors-3",
    "book": "nomicon"
  },
  {
    "question": "How do I set initial capacity for a HashMap in Rust?",
    "chunk_id": "rust-by-example/std/hash.md#hashmap-0",
    "book": "rust-by-example"
  },
  {
    "question": "Why can't push to Vec while holding reference to element?",
    "chunk_id": "nomicon/lifetimes.md#example-aliasing-a-mutable-reference-4",
    "book": "nomicon"
  },
  {
    "question": "Do items declared inside a function have module paths?",
    "chunk_id": "reference/statements.md#item-declarations-2",
    "book": "reference"
  },
  {
    "question": "What file extension does a Rust dylib use on macOS?",
    "chunk_id": "reference/linkage.md#linkage-1",
    "book": "reference"
  },
  {
    "question": "What does $x:expr mean in Rust macro_rules! macros?",
    "chunk_id": "book/ch20-05-macros.md#declarative-macros-for-general-metaprogramming-4",
    "book": "book"
  },
  {
    "question": "Rustonomicon or Reference for Rust type layout?",
    "chunk_id": "nomicon/data.md#data-representation-in-rust-0",
    "book": "nomicon"
  },
  {
    "question": "How do I export a macro from my crate?",
    "chunk_id": "reference/macros-by-example.md#the-macro_export-attribute-16",
    "book": "reference"
  },
  {
    "question": "How do I use Option to represent absence in Rust?",
    "chunk_id": "book/ch06-00-enums.md#enums-and-pattern-matching-0",
    "book": "book"
  },
  {
    "question": "What types can xmm registers hold in Rust inline asm?",
    "chunk_id": "reference/inline-assembly.md#register-operands-18",
    "book": "reference"
  },
  {
    "question": "Are common types like Vec and primitives Unpin?",
    "chunk_id": "book/ch17-05-traits-for-async.md#the-pin-type-and-the-unpin-trait-12",
    "book": "book"
  },
  {
    "question": "When can a reference with longer lifetime act as shorter?",
    "chunk_id": "nomicon/subtyping.md#subtyping-1",
    "book": "nomicon"
  },
  {
    "question": "Which rounding mode does Rust use for float casts?",
    "chunk_id": "reference/expressions/operator-expr.md#enum-cast-23",
    "book": "reference"
  },
  {
    "question": "Can I use unsized types like [T] in struct fields?",
    "chunk_id": "reference/trait-bounds.md#trait-and-lifetime-bounds-2",
    "book": "reference"
  },
  {
    "question": "What does cfg!(...) return?",
    "chunk_id": "reference/conditional-compilation.md#the-cfg-macro-22",
    "book": "reference"
  },
  {
    "question": "When does Rust perform implicit type coercion?",
    "chunk_id": "reference/type-coercions.md#coercion-sites-1",
    "book": "reference"
  },
  {
    "question": "What is the path dependency syntax in Cargo.toml?",
    "chunk_id": "book/ch14-03-cargo-workspaces.md#creating-the-second-package-in-the-workspace-3",
    "book": "book"
  },
  {
    "question": "What signature should a Rust procedural macro have?",
    "chunk_id": "book/ch20-05-macros.md#procedural-macros-for-generating-code-from-attributes-6",
    "book": "book"
  },
  {
    "question": "How do I ignore a function parameter in Rust?",
    "chunk_id": "book/ch19-03-pattern-syntax.md#parts-of-a-value-with-a-nested-_-12",
    "book": "book"
  },
  {
    "question": "Are Rust closures and iterators fast?",
    "chunk_id": "book/ch13-00-functional-features.md#functional-language-features-iterators-and-closures-0",
    "book": "book"
  },
  {
    "question": "How to show computed fields in Natvis for Rust?",
    "chunk_id": "reference/attributes/debugger.md#using-debugger_visualizer-with-natvis-3",
    "book": "reference"
  },
  {
    "question": "What's the difference between async fn and async { }?",
    "chunk_id": "async-book/part-guide/more-async-await.md#async-blocks-8",
    "book": "async-book"
  },
  {
    "question": "How can I move or clone a captured value?",
    "chunk_id": "book/ch13-01-closures.md#moving-captured-values-out-of-closures-18",
    "book": "book"
  },
  {
    "question": "Why use Box<Self> in trait method signatures?",
    "chunk_id": "book/ch18-03-oo-design-patterns.md#requesting-a-review-which-changes-the-posts-state-5",
    "book": "book"
  },
  {
    "question": "Do lint attributes inherit from parent modules?",
    "chunk_id": "reference/attributes/diagnostics.md#lint-check-attributes-2",
    "book": "reference"
  },
  {
    "question": "Where can I read an RFC about Rust pinning design?",
    "chunk_id": "async-book/part-reference/pinning.md#references-32",
    "book": "async-book"
  },
  {
    "question": "Can I use ? on chained method calls like open().read_to_string()?",
    "chunk_id": "book/ch09-02-recoverable-errors-with-result.md#where-to-use-the--operator-12",
    "book": "book"
  },
  {
    "question": "Are Rust tests run in separate threads?",
    "chunk_id": "book/ch11-01-writing-tests.md#structuring-test-functions-5",
    "book": "book"
  },
  {
    "question": "When is a type Unpin versus !Unpin?",
    "chunk_id": "async-book/part-reference/pinning.md#unpin-7",
    "book": "async-book"
  },
  {
    "question": "Do callers need to ensure pointer lives until the future completes?",
    "chunk_id": "reference/items/functions.md#combining-async-and-unsafe-10",
    "book": "reference"
  },
  {
    "question": "How do I accept incoming TcpStream connections?",
    "chunk_id": "book/ch21-01-single-threaded.md#listening-to-the-tcp-connection-2",
    "book": "book"
  },
  {
    "question": "Why does my Rust closure only accept one type?",
    "chunk_id": "book/ch13-01-closures.md#inferring-and-annotating-closure-types-8",
    "book": "book"
  },
  {
    "question": "How do I yield control in Tokio?",
    "chunk_id": "async-book/part-guide/io.md#yielding-13",
    "book": "async-book"
  },
  {
    "question": "Can I define custom cfg flags for conditional compilation?",
    "chunk_id": "rust-by-example/attribute/cfg/custom.md#custom-0",
    "book": "rust-by-example"
  },
  {
    "question": "What kinds of procedural macros exist?",
    "chunk_id": "reference/procedural-macros.md#procedural-macros-0",
    "book": "reference"
  },
  {
    "question": "Does a[b] auto-deref to call the Index trait?",
    "chunk_id": "reference/expressions/array-expr.md#array-and-slice-indexing-expressions-2",
    "book": "reference"
  },
  {
    "question": "How are doctests reported by cargo test?",
    "chunk_id": "book/ch11-01-writing-tests.md#checking-results-with-assert-11",
    "book": "book"
  },
  {
    "question": "What sign does % return for negative dividends in Rust?",
    "chunk_id": "reference/expressions/operator-expr.md#arithmetic-and-logical-binary-operators-13",
    "book": "reference"
  },
  {
    "question": "Does repr(C, packed) remove struct padding?",
    "chunk_id": "nomicon/ffi.md#interoperability-with-foreign-code-20",
    "book": "nomicon"
  },
  {
    "question": "How to update cached average when modifying a list in Rust?",
    "chunk_id": "book/ch18-01-what-is-oo.md#encapsulation-that-hides-implementation-details-3",
    "book": "book"
  },
  {
    "question": "How do I navigate the Rust Reference table of contents?",
    "chunk_id": "reference/introduction.md#how-to-use-this-book-3",
    "book": "reference"
  },
  {
    "question": "Why do tests race when writing to the same file?",
    "chunk_id": "rust-by-example/cargo/test.md#testing-1",
    "book": "rust-by-example"
  },
  {
    "question": "When should I use unsafe blocks?",
    "chunk_id": "nomicon/safe-unsafe-meaning.md#how-safe-and-unsafe-interact-0",
    "book": "nomicon"
  },
  {
    "question": "Why does Rust use self as the first method parameter?",
    "chunk_id": "book/ch05-03-method-syntax.md#methods-0",
    "book": "book"
  },
  {
    "question": "Why does Rust warn 'unused `Result` that must be used'?",
    "chunk_id": "book/ch12-03-improving-error-handling-and-modularity.md#handling-errors-returned-from-run-in-main-17",
    "book": "book"
  },
  {
    "question": "Can different Rust stdlib versions cause panics to abort across crates?",
    "chunk_id": "reference/panic.md#unwinding-across-ffi-boundaries-5",
    "book": "reference"
  },
  {
    "question": "How do I call a C function with ... from Rust?",
    "chunk_id": "nomicon/ffi.md#variadic-functions-21",
    "book": "nomicon"
  },
  {
    "question": "How much memory does a Rust enum value take?",
    "chunk_id": "reference/types/enum.md#enumerated-types-0",
    "book": "reference"
  },
  {
    "question": "How to collect Iterator<Result<_, _>> into a single Result?",
    "chunk_id": "rust-by-example/error/iter_result.md#fail-the-entire-operation-with-collect-3",
    "book": "rust-by-example"
  },
  {
    "question": "How do I write a line doc comment for crate-level docs?",
    "chunk_id": "reference/comments.md#comments-0",
    "book": "reference"
  },
  {
    "question": "How do I define methods on a Rust struct?",
    "chunk_id": "rust-by-example/fn/methods.md#associated-functions--methods-1",
    "book": "rust-by-example"
  },
  {
    "question": "What does Weak::upgrade return when target Rc was dropped?",
    "chunk_id": "book/ch15-06-reference-cycles.md#visualizing-changes-to-strong_count-and-weak_count-12",
    "book": "book"
  },
  {
    "question": "How do I write a generic function in Rust?",
    "chunk_id": "rust-by-example/generics.md#generics-0",
    "book": "rust-by-example"
  },
  {
    "question": "Why can't I move t.0 while closure borrows t.1?",
    "chunk_id": "reference/types/closure.md#reference-into-unaligned-structs-18",
    "book": "reference"
  },
  {
    "question": "How do I make a variable mutable in Rust?",
    "chunk_id": "rust-by-example/variable_bindings/mut.md#mutability-0",
    "book": "rust-by-example"
  },
  {
    "question": "How to accept any type implementing a trait as a parameter",
    "chunk_id": "reference/types/impl-trait.md#impl-trait-0",
    "book": "reference"
  },
  {
    "question": "How to handle Result errors without using match in Rust?",
    "chunk_id": "book/ch09-02-recoverable-errors-with-result.md#alternatives-to-using-match-with-resultt-e-4",
    "book": "book"
  },
  {
    "question": "Why does borrowing one union field block borrowing other fields?",
    "chunk_id": "reference/items/unions.md#references-to-union-fields-4",
    "book": "reference"
  },
  {
    "question": "How do I pass a struct to a function by reference?",
    "chunk_id": "book/ch05-02-example-structs.md#refactoring-with-structs-3",
    "book": "book"
  },
  {
    "question": "How do I run expensive or slow tests separately?",
    "chunk_id": "book/ch11-02-running-tests.md#ignoring-tests-unless-specifically-requested-9",
    "book": "book"
  },
  {
    "question": "How can I keep errors visible when redirecting stdout?",
    "chunk_id": "book/ch12-06-writing-to-stderr-instead-of-stdout.md#checking-where-errors-are-written-1",
    "book": "book"
  },
  {
    "question": "How to write a simple if/else example in Rust?",
    "chunk_id": "book/ch03-05-control-flow.md#if-expressions-2",
    "book": "book"
  },
  {
    "question": "How do I clone Strings from a slice of Strings?",
    "chunk_id": "book/ch12-03-improving-error-handling-and-modularity.md#creating-a-constructor-for-config-7",
    "book": "book"
  },
  {
    "question": "How to use the ? operator with Result in Rust",
    "chunk_id": "rust-by-example/std/result/question_mark.md#section-1",
    "book": "rust-by-example"
  },
  {
    "question": "Can derive macros read attributes on generic parameters?",
    "chunk_id": "reference/items/generics.md#attributes-8",
    "book": "reference"
  },
  {
    "question": "How do I pass a function or static with sym?",
    "chunk_id": "reference/inline-assembly.md#operand-type-10",
    "book": "reference"
  }
]