Regression importing log’s warn! macro inside of include!()ed file #53205
Description
Cargo.toml
[package] name = "foo" version = "0.0.0" [dependencies] log = "0.4"src/main.rs
include!("real_main.rs");src/real_main.rs
#[macro_use] extern crate log; fn main() { warn!("!!!"); }Code like this used to build correctly:
$ rustup run --install nightly-2018-08-02 rustc -V rustc 1.29.0-nightly (97085f9fb 2018-08-01) $ rustup run --install nightly-2018-08-02 cargo run Finished dev [unoptimized + debuginfo] target(s) in 0.01s Running `target/debug/foo`And now produces an error whose message seems wrong: it points at the call site of a macro as a "name also defined here":
$ rustup run --install nightly-2018-08-03 rustc -V rustc 1.30.0-nightly (7e8ca9f8b 2018-08-03) $ rustup run --install nightly-2018-08-03 cargo run Compiling foo v0.0.0 (file:///tmp/foo) error[E0659]: `warn` is ambiguous --> src/real_main.rs:4:5 | 4 | warn!("!!!"); | ^^^^ | note: `warn` could refer to the name imported here --> src/real_main.rs:1:1 | 1 | #[macro_use] extern crate log; | ^^^^^^^^^^^^ note: `warn` could also refer to the name defined here --> src/real_main.rs:4:5 | 4 | warn!("!!!"); | ^^^^ = note: macro-expanded macro imports do not shadow error: aborting due to previous error For more information about this error, try `rustc --explain E0659`. error: Could not compile `foo`. To learn more, run the command again with --verbose.Commit range between these two nightlies: 97085f9...7e8ca9f
#52841 is the only PR in the range that seems relevant. CC @petrochenkov, @alexcrichton