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9 changes: 3 additions & 6 deletions src/compiler-debugging.md
Original file line number Diff line number Diff line change
Expand Up @@ -182,12 +182,9 @@ If you are developing rustdoc, use `RUSTDOC_LOG` instead. If you are developing
Miri, use `MIRI_LOG` instead. You get the idea :)

See the [`tracing`] crate's docs, and specifically the docs for [`debug!`] to
see the full syntax you can use. See the [`env_logger`] doc for more info on the
full syntax. (Note: unlike the compiler, the [`tracing`] crate and its examples
use the `RUST_LOG` environment variable. rustc, rustdoc, and other tools set
custom environment variables.)

[`env_logger`]: https://docs.rs/env_logger
see the full syntax you can use. (Note: unlike the compiler, the [`tracing`]
crate and its examples use the `RUST_LOG` environment variable. rustc, rustdoc,
and other tools set custom environment variables.)

**Note that unless you use a very strict filter, the logger will emit a lot of
output, so use the most specific module(s) you can (comma-separated if
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