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unused_extern_crates: does not handle renamed crates used in other modules #57421

@ehuss

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@ehuss

The following suggests removing the extern crate which results in broken code.

#![warn(unused_extern_crates)] extern crate time as time_crate; pub mod m { pub use time_crate::Duration; }

The following is also very similar:

#![warn(unused_extern_crates)] extern crate time as time_crate; pub mod m { use time_crate::Duration; pub fn f() { Duration::days(1); } }

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    A-suggestion-diagnosticsArea: Suggestions generated by the compiler applied by `cargo fix`

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