Tomasz Miąsko 2661a4edb9 Avoid BorrowMutError with RUSTC_LOG=debug ...

$ touch empty.rs
$ env RUSTC_LOG=debug rustc +stage1 --crate-type=lib empty.rs

Fails with a `BorrowMutError` because source map files are already
borrowed while `features_query` attempts to format a log message
containing a span.

Release the borrow before the query to avoid the issue.

2020-10-29 18:09:53 +01:00

..

src

Avoid BorrowMutError with RUSTC_LOG=debug

2020-10-29 18:09:53 +01:00

Cargo.toml

Don't query unstable data when staged_api is off

2020-09-13 02:10:39 +02:00