exclusive_range_pattern error is unhelpful

[ilyvion]

Code

match x {
    0..42 => {},
    _ => {},
}

Current output

error[E0658]: exclusive range pattern syntax is experimental
 --> src/lib.rs:3:9
  |
3 |         0..42 => {},
  |         ^^^^^
  |
  = note: see issue #37854 <https://github.com/rust-lang/rust/issues/37854> for more information

Desired output

error[E0658]: exclusive range pattern syntax is experimental
 --> src/lib.rs:3:9
  |
3 |         0..42 => {},
  |         ^^^^^
  |
  = note: see issue #37854 <https://github.com/rust-lang/rust/issues/37854> for more information
  = help: use an inclusive range pattern, like 0..=41

Rationale and extra context

Came across this when a beginner was very confused about what was wrong with their match; the words "is experimental" and the link to the issue was not sufficient for their discovering what the problem/solution was.

The suggested inclusive range pattern doesn't need to contain the actual matching value if producing it is hard or impossible, printing something like use an inclusive range pattern, like N..=M is still better than nothing.

This issue may of course be ignored/closed if this nightly feature is just about ready to be stabilized or something.

Other cases

No response

Rust Version

❯ rustc --version --verbose
rustc 1.75.0 (82e1608df 2023-12-21)
binary: rustc
commit-hash: 82e1608dfa6e0b5569232559e3d385fea5a93112
commit-date: 2023-12-21
host: x86_64-pc-windows-msvc
release: 1.75.0
LLVM version: 17.0.6

Anything else?

@rustbot label +D-terse +C-enhancement +F-exclusive_range_pattern

[rowan-sl]

@rustbot claim