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54bd3a7b8d
Tweak some structured suggestions to be more verbose and accurate Addressing some issues I found while working on #127282. ``` error: this URL is not a hyperlink --> $DIR/auxiliary/include-str-bare-urls.md:1:11 | LL | HEADS UP! https://example.com MUST SHOW UP IN THE STDERR FILE! | ^^^^^^^^^^^^^^^^^^^ | = note: bare URLs are not automatically turned into clickable links note: the lint level is defined here --> $DIR/include-str-bare-urls.rs:14:9 | LL | #![deny(rustdoc::bare_urls)] | ^^^^^^^^^^^^^^^^^^ help: use an automatic link instead | LL | HEADS UP! <https://example.com> MUST SHOW UP IN THE STDERR FILE! | + + ``` ``` error[E0384]: cannot assign twice to immutable variable `v` --> $DIR/assign-imm-local-twice.rs:7:5 | LL | v = 1; | ----- first assignment to `v` LL | println!("v={}", v); LL | v = 2; | ^^^^^ cannot assign twice to immutable variable | help: consider making this binding mutable | LL | let mut v: isize; | +++ ``` ``` error[E0393]: the type parameter `Rhs` must be explicitly specified --> $DIR/issue-22560.rs:9:23 | LL | trait Sub<Rhs=Self> { | ------------------- type parameter `Rhs` must be specified for this ... LL | type Test = dyn Add + Sub; | ^^^ | = note: because of the default `Self` reference, type parameters must be specified on object types help: set the type parameter to the desired type | LL | type Test = dyn Add + Sub<Rhs>; | +++++ ``` ``` error[E0596]: cannot borrow `v` as mutable, as it is not declared as mutable --> $DIR/issue-33819.rs:4:34 | LL | Some(ref v) => { let a = &mut v; }, | ^^^^^^ cannot borrow as mutable | help: try removing `&mut` here | LL - Some(ref v) => { let a = &mut v; }, LL + Some(ref v) => { let a = v; }, | ``` ``` help: remove the invocation before committing it to a version control system | LL - dbg!(); | ``` ``` error[E0308]: mismatched types --> $DIR/issue-39974.rs:1:21 | LL | const LENGTH: f64 = 2; | ^ expected `f64`, found integer | help: use a float literal | LL | const LENGTH: f64 = 2.0; | ++ ``` ``` error[E0529]: expected an array or slice, found `Vec<i32>` --> $DIR/match-ergonomics.rs:8:9 | LL | [&v] => {}, | ^^^^ pattern cannot match with input type `Vec<i32>` | help: consider slicing here | LL | match x[..] { | ++++ ``` ``` error[E0609]: no field `0` on type `[u32; 1]` --> $DIR/parenthesized-deref-suggestion.rs:10:21 | LL | (x as [u32; 1]).0; | ^ unknown field | help: instead of using tuple indexing, use array indexing | LL | (x as [u32; 1])[0]; | ~ + ``` |
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