False positive `unfulfilled_lint_expectations` with either of `--tests` or `--all-targets`

[lnicola]

Code

//! crate docs

#![warn(missing_docs)]
#![warn(clippy::pedantic)]

#[expect(missing_docs)]
pub fn foo() {}

#[expect(clippy::enum_glob_use)]
use std::cmp::Ordering::*;

fn main() {
    #[expect(clippy::unreadable_literal)]
    let _ = 1000000000;
    print!("{Equal:?}");
}

Current output

$ cargo check --all-targets
warning: this lint expectation is unfulfilled
 --> src/main.rs:6:10
  |
6 | #[expect(missing_docs)]
  |          ^^^^^^^^^^^^
  |
  = note: `#[warn(unfulfilled_lint_expectations)]` on by default

warning: `hello` (bin "hello" test) generated 1 warning
    Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.08s

Desired output

$ cargo check --all-targets
Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.00s

Rationale and extra context

No response

Other cases

cargo clippy --all-targets has the same issue with clippy::enum_glob_use, however, there's no false positive on clippy::unreadable_literal.

Rust Version

rustc 1.81.0-beta.6 (b5fd9f6f1 2024-08-21)
binary: rustc
commit-hash: b5fd9f6f1061b79c045cc08fe03e00caad536800
commit-date: 2024-08-21
host: x86_64-unknown-linux-gnu
release: 1.81.0-beta.6
LLVM version: 18.1.7

Anything else?

Reported in rust-lang/rust-analyzer#17685.

[Urgau]

Minimized:

// flags: rustc --test a.rs

#![warn(missing_docs)]

#[expect(missing_docs)]
pub fn foo() {}

cc @xFrednet

[Urgau]

This seems very relevant.

rust/compiler/rustc_lint/src/builtin.rs

Lines 429 to 433 in d678b81

	// If we're building a test harness, then warning about
	// documentation is probably not really relevant right now.
	if cx.sess().opts.test {
	return;
	}