Terse error message on tuple struct looking like regular struct

[ada4a]

Code

struct Foo(a: u8, b: u8);

Current output

error: expected one of `!`, `(`, `)`, `+`, `,`, `::`, or `<`, found `:`
 --> src/lib.rs:4:13
  |
4 | struct Foo(a: u8, b: u8)
  |             ^ expected one of 7 possible tokens

Desired output

error: expected one of `!`, `(`, `)`, `+`, `,`, `::`, or `<`, found `:`
 --> src/lib.rs:4:13
  |
4 | struct Foo(a: u8, b: u8);
  |             ^ expected one of 7 possible tokens

help: if you wanted to create a tuple struct, remove field names:
 --> src/lib.rs:4:13
  |
4 ~ struct Foo(a: u8, b: u8);
  |            ---    ---

help: if you wanted to create a regular struct, use curly braces:
 --> src/lib.rs:4:13
  |
4 - struct Foo(a: u8, b: u8);
4 + struct Foo{a: u8, b: u8}

Rationale and extra context

Context: I was writing a quick reproducer, and made this silly grammatical mistake. But the error message completely threw me off

Other cases

Rust Version

(playground, stable 1.88.0 / beta 1.89.0-beta.7 / nightly 2025-07-28)

Anything else?

@rustbot label +D-terse

[bb1yd]

I would like to try working on it. @rustbot claim