Regression in interaction between 'use' statements, crates, and 'pub use'.

[brson]

This compiles on stable but not on nightly:

extern crate std;

pub use a::*;
pub use b::*;

pub mod a {
    use std;
}

pub mod b {
    use std;
}

fn main() { }

Here's the error:

<anon>:9:9: 9:12 error: unresolved import [E0432]
<anon>:9     use std;
                 ^~~
<anon>:9:9: 9:12 help: see the detailed explanation for E0432
<anon>:5:9: 5:12 error: unresolved import [E0432]
<anon>:5     use std;
                 ^~~
<anon>:5:9: 5:12 help: see the detailed explanation for E0432
error: aborting due to 2 previous errors
playpen: application terminated with error code 101

[alexcrichton]

Might be a dupe of #32089 which is fixed in #32097, but not sure?

cc @jseyfried

[jseyfried]

Yeah, this is a dupe of #32089.

This actually doesn't compile on stable since the explicit extern crate std; conflicts with the implicit, injected version. It does compile on stable without the explicit extern crate std; or with #![no_std].

[alexcrichton]

Ah ok, closing as a dupe, thanks @jseyfried!