mirror of https://github.com/rust-lang/book
Update to 1.56
This commit is contained in:
Carol (Nichols || Goulding)
Carol (Nichols || Goulding)
parent
aae859c187
commit
5f2729cdc5
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@ -12,8 +12,8 @@ jobs:
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- name: Install Rust
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run: |
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rustup set profile minimal
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rustup toolchain install 1.55 -c rust-docs
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rustup default 1.55
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rustup toolchain install 1.56 -c rust-docs
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rustup default 1.56
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- name: Install mdbook
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run: |
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mkdir bin
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@ -1,7 +1,7 @@
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# Administrative Tasks
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This documentation is for Carol and Steve and anyone else managing the repo to
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remember how to do occasional maintenance tasks.
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This documentation is for anyone managing the repo to remember how to do
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occasional maintenance tasks.
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## Update the `rustc` version
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@ -1,5 +1,13 @@
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$ cargo run
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Compiling functions v0.1.0 (file:///projects/functions)
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error: expected expression, found statement (`let`)
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--> src/main.rs:2:14
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2 | let x = (let y = 6);
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| ^^^^^^^^^
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= note: variable declaration using `let` is a statement
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error[E0658]: `let` expressions in this position are experimental
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--> src/main.rs:2:14
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@ -9,14 +17,6 @@ error[E0658]: `let` expressions in this position are experimental
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= note: see issue #53667 <https://github.com/rust-lang/rust/issues/53667> for more information
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= help: you can write `matches!(<expr>, <pattern>)` instead of `let <pattern> = <expr>`
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error: expected expression, found statement (`let`)
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--> src/main.rs:2:14
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2 | let x = (let y = 6);
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| ^^^^^^^^^
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= note: variable declaration using `let` is a statement
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warning: unnecessary parentheses around assigned value
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--> src/main.rs:2:13
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@ -10,7 +10,7 @@ error[E0106]: missing lifetime specifier
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help: consider using the `'static` lifetime
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5 | fn dangle() -> &'static String {
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| ^^^^^^^^
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| ~~~~~~~~
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For more information about this error, try `rustc --explain E0106`.
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error: could not compile `ownership` due to previous error
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@ -8,9 +8,9 @@ error[E0106]: missing lifetime specifier
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help: consider introducing a named lifetime parameter
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1 | struct User<'a> {
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1 ~ struct User<'a> {
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2 | active: bool,
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3 | username: &'a str,
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3 ~ username: &'a str,
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error[E0106]: missing lifetime specifier
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@ -21,10 +21,10 @@ error[E0106]: missing lifetime specifier
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help: consider introducing a named lifetime parameter
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1 | struct User<'a> {
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1 ~ struct User<'a> {
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2 | active: bool,
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3 | username: &str,
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4 | email: &'a str,
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4 ~ email: &'a str,
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For more information about this error, try `rustc --explain E0106`.
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@ -11,7 +11,7 @@ error[E0369]: binary operation `>` cannot be applied to type `T`
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help: consider restricting type parameter `T`
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1 | fn largest<T: std::cmp::PartialOrd>(list: &[T]) -> T {
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| ^^^^^^^^^^^^^^^^^^^^^^
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| ++++++++++++++++++++++
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For more information about this error, try `rustc --explain E0369`.
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error: could not compile `chapter10` due to previous error
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@ -1,6 +1,7 @@
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# This file is automatically @generated by Cargo.
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# It is not intended for manual editing.
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[[package]]
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name = "chapter10"
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version = "0.1.0"
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version = 3
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[[package]]
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name = "aggregator"
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version = "0.1.0"
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@ -1,6 +1,7 @@
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# This file is automatically @generated by Cargo.
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# It is not intended for manual editing.
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[[package]]
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name = "chapter10"
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version = "0.1.0"
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version = 3
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[[package]]
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name = "aggregator"
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version = "0.1.0"
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@ -1,6 +1,7 @@
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# This file is automatically @generated by Cargo.
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# It is not intended for manual editing.
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[[package]]
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name = "chapter10"
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version = "0.1.0"
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version = 3
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[[package]]
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name = "aggregator"
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version = "0.1.0"
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@ -10,7 +10,7 @@ error[E0106]: missing lifetime specifier
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help: consider introducing a named lifetime parameter
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9 | fn longest<'a>(x: &'a str, y: &'a str) -> &'a str {
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| ^^^^ ^^^^^^^ ^^^^^^^ ^^^
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| ++++ ++ ++ ++
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For more information about this error, try `rustc --explain E0106`.
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error: could not compile `chapter10` due to previous error
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@ -1,6 +1,7 @@
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# This file is automatically @generated by Cargo.
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# It is not intended for manual editing.
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[[package]]
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name = "chapter10"
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version = "0.1.0"
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version = 3
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[[package]]
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name = "aggregator"
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version = "0.1.0"
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@ -1,6 +1,7 @@
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# This file is automatically @generated by Cargo.
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# It is not intended for manual editing.
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[[package]]
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name = "chapter10"
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version = "0.1.0"
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version = 3
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[[package]]
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name = "aggregator"
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version = "0.1.0"
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@ -1,6 +1,7 @@
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# This file is automatically @generated by Cargo.
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# It is not intended for manual editing.
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[[package]]
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name = "chapter10"
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version = "0.1.0"
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version = 3
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[[package]]
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name = "aggregator"
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version = "0.1.0"
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@ -1,6 +1,7 @@
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# This file is automatically @generated by Cargo.
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# It is not intended for manual editing.
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[[package]]
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name = "chapter10"
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version = "0.1.0"
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version = 3
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[[package]]
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name = "aggregator"
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version = "0.1.0"
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@ -1,6 +1,7 @@
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# This file is automatically @generated by Cargo.
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# It is not intended for manual editing.
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[[package]]
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name = "chapter10"
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version = "0.1.0"
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version = 3
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[[package]]
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name = "aggregator"
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version = "0.1.0"
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@ -10,7 +10,7 @@ error[E0106]: missing lifetime specifier
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help: consider introducing a named lifetime parameter
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28 | pub fn search<'a>(query: &'a str, contents: &'a str) -> Vec<&'a str> {
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| ^^^^ ^^^^^^^ ^^^^^^^ ^^^
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| ++++ ++ ++ ++
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For more information about this error, try `rustc --explain E0106`.
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error: could not compile `minigrep` due to previous error
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@ -4,10 +4,9 @@ error[E0308]: mismatched types
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--> src/main.rs:5:29
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5 | let n = example_closure(5);
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| ^
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| ^- help: try using a conversion method: `.to_string()`
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| |
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| expected struct `String`, found integer
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| help: try using a conversion method: `5.to_string()`
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For more information about this error, try `rustc --explain E0308`.
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error: could not compile `closure-example` due to previous error
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@ -11,7 +11,7 @@ error[E0072]: recursive type `List` has infinite size
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help: insert some indirection (e.g., a `Box`, `Rc`, or `&`) to make `List` representable
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2 | Cons(i32, Box<List>),
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| ^^^^ ^
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| ++++ +
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error[E0391]: cycle detected when computing drop-check constraints for `List`
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--> src/main.rs:1:1
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1 | enum List {
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| ^^^^^^^^^
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= note: ...which again requires computing drop-check constraints for `List`, completing the cycle
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= note: ...which immediately requires computing drop-check constraints for `List` again
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= note: cycle used when computing dropck types for `Canonical { max_universe: U0, variables: [], value: ParamEnvAnd { param_env: ParamEnv { caller_bounds: [], reveal: UserFacing }, value: List } }`
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Some errors have detailed explanations: E0072, E0391.
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@ -19,7 +19,7 @@ note: function requires argument type to outlive `'static`
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help: to force the closure to take ownership of `v` (and any other referenced variables), use the `move` keyword
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6 | let handle = thread::spawn(move || {
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| ^^^^^^^
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| ++++
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For more information about this error, try `rustc --explain E0373`.
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error: could not compile `threads` due to previous error
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@ -15,6 +15,7 @@ error[E0277]: `Rc<Mutex<i32>>` cannot be sent between threads safely
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= help: within `[closure@src/main.rs:11:36: 15:10]`, the trait `Send` is not implemented for `Rc<Mutex<i32>>`
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= note: required because it appears within the type `[closure@src/main.rs:11:36: 15:10]`
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note: required by a bound in `spawn`
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For more information about this error, try `rustc --explain E0277`.
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error: could not compile `shared-state` due to previous error
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$ cargo run
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Compiling patterns v0.1.0 (file:///projects/patterns)
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warning: irrefutable `if let` pattern
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--> src/main.rs:2:5
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--> src/main.rs:2:8
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2 | / if let x = 5 {
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3 | | println!("{}", x);
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4 | | };
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| |_____^
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2 | if let x = 5 {
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| ^^^^^^^^^
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= note: `#[warn(irrefutable_let_patterns)]` on by default
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= note: this pattern will always match, so the `if let` is useless
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error[E0277]: `Point` doesn't implement `std::fmt::Display`
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--> src/main.rs:20:6
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3 | trait OutlinePrint: fmt::Display {
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| ------------ required by this bound in `OutlinePrint`
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...
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20 | impl OutlinePrint for Point {}
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| ^^^^^^^^^^^^ `Point` cannot be formatted with the default formatter
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= help: the trait `std::fmt::Display` is not implemented for `Point`
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= note: in format strings you may be able to use `{:?}` (or {:#?} for pretty-print) instead
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note: required by a bound in `OutlinePrint`
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--> src/main.rs:3:21
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3 | trait OutlinePrint: fmt::Display {
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| ^^^^^^^^^^^^ required by this bound in `OutlinePrint`
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For more information about this error, try `rustc --explain E0277`.
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error: could not compile `traits-example` due to previous error
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@ -10,7 +10,7 @@ error[E0746]: return type cannot have an unboxed trait object
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help: use `impl Fn(i32) -> i32` as the return type, as all return paths are of type `[closure@src/lib.rs:2:5: 2:14]`, which implements `Fn(i32) -> i32`
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1 | fn returns_closure() -> impl Fn(i32) -> i32 {
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| ^^^^^^^^^^^^^^^^^^^
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| ~~~~~~~~~~~~~~~~~~~
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For more information about this error, try `rustc --explain E0746`.
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error: could not compile `functions-example` due to previous error
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@ -1 +1 @@
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1.55
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1.56
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@ -2,7 +2,7 @@
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*by Steve Klabnik and Carol Nichols, with contributions from the Rust Community*
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This version of the text assumes you’re using Rust 1.55 or later with
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This version of the text assumes you’re using Rust 1.56 or later with
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`edition="2018"` in *Cargo.toml* of all projects to use Rust 2018 Edition
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idioms. See the [“Installation” section of Chapter 1][install]<!-- ignore -->
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to install or update Rust, and see the new [Appendix E][editions]<!-- ignore
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Reference in New Issue