Panic when trying to use macro

[jD91mZM2]

The compiler panicked

I tried this code:
compiler-crash tag on rust-nix.
cargo test

I expected to see this happen: A normal compilation error
Instead, this happened: The rust compiler panicked

Meta

rustc --version --verbose:

rustc 1.30.0-nightly (7e8ca9f8b 2018-08-03)
binary: rustc
commit-hash: 7e8ca9f8bd8325398e76bc30ac09aab138bbb127
commit-date: 2018-08-03
host: x86_64-unknown-linux-gnu
release: 1.30.0-nightly
LLVM version: 7.0

2018 edition of rust

Backtrace: https://gist.github.com/0bf4ae25ef77940633fda40257b16cab

[jD91mZM2]

Minimal reproduction example:

#![feature(rust_2018_preview)]

macro_rules! m {
    () => {}
}

mod m {
    use crate::nonexistent_module::m;

    fn f() {
        m!();
    }
}

[petrochenkov]

Fixed locally as a part of larger refactoring, will submit a PR soon.