Missing a trait import in doctests suggests importing from `crate::<cratename>`

Code

pub trait Runnable {
    fn run();
}

/// ```
/// use tmp::NoopTask;
///
/// NoopTask::run();
/// ```
pub struct NoopTask;

impl Runnable for NoopTask {
    fn run() {}
}

Current output

---- src/lib.rs - NoopTask (line 5) stdout ----
error[E0599]: no function or associated item named `run` found for struct `NoopTask` in the current scope
 --> src/lib.rs:9:11
  |
7 | NoopTask::run();
  |           ^^^ function or associated item not found in `NoopTask`
  |
  = help: items from traits can only be used if the trait is in scope
help: trait `Runnable` which provides `run` is implemented but not in scope; perhaps you want to import it
  |
2 + use crate::tmp::Runnable;
  |

Desired output

---- src/lib.rs - NoopTask (line 5) stdout ----
error[E0599]: no function or associated item named `run` found for struct `NoopTask` in the current scope
 --> src/lib.rs:9:11
  |
7 | NoopTask::run();
  |           ^^^ function or associated item not found in `NoopTask`
  |
  = help: items from traits can only be used if the trait is in scope
help: trait `Runnable` which provides `run` is implemented but not in scope; perhaps you want to import it
  |
2 + use tmp::Runnable;
  |

Rationale and extra context

This happens when running a doctest without all traits imported.

I'm not quite sure whether this is a diagnostics issue, as the way to import that trait does surprisingly work. However, it's makes the docs quite confusing.

On top of that a unimported struct does suggest importing tmp::NoopRunnable instead of crate::tmp::NoopRunnable .

Other cases

Rust Version

rustc 1.85.1 (4eb161250 2025-03-15)
binary: rustc
commit-hash: 4eb161250e340c8f48f66e2b929ef4a5bed7c181
commit-date: 2025-03-15
host: x86_64-unknown-linux-gnu
release: 1.85.1
LLVM version: 19.1.7

Anything else?

No response