Same name files was overwrite

[hemaolong]

The files with same name in different path may be overwrite .

This is the mini project to reproduce the bug.
In thiscase, src/system/pay.rs will be messed.
/////////////// main.rs
// Be careful the sequence of mod definition in the main.rs
mod system {
pub mod pay;
}
mod hf;

pub fn main() {}
//////////////end if main.rs

//////////////////// project layout
E:.
│ hf.rs
│ main.rs
│
├───hf
│ └───system
│ pay.rs
│
└───system
pay.rs

[hemaolong]

btw, rustfmt version: rustfmt 1.0.3-nightly (d6829d6 2019-02-14)

[topecongiro]

@hemaolong Thanks you for reporting this issue. Unfortunately I could not reproduce this locally with the following layout. I think that the actual content of the files could matter. Is it possible for you to publish the exact minimal project so that I could investigate this issue further?

.
├── hf
│   └── system.rs
├── hf.rs
├── main.rs
├── pay.rs
└── system
    └── pay.rs

[hemaolong]

@topecongiro
fmt_bug.zip
My mistake, the first pay.rs should be under /src/hf/system/pay.rs.

Sorry to response too late.
I attached the minimal project but it seems has no effect.
I do it again after update my Chrome ^-^

[topecongiro]

@hemaolong Thanks! I could reproduce it with your example.

cc #3427.

[rchaser53]

This issue is resolved by #3448

[topecongiro]

@rchaser53 Thanks!