New upstream version 1.20.0+dfsg1

[rustc.git] / src / vendor / log / README.md

diff --git a/src/vendor/log/README.md b/src/vendor/log/README.md
index 0e9dc58ae7b3f0d36e53e42f6e97c2f9246cc4f4..1ff4a89ba7dc22e6ba47d13e215d73450c0ce36b 100644 (file)
--- a/src/vendor/log/README.md
+++ b/src/vendor/log/README.md
@@ -158,3 +158,20 @@ test tests::it_adds_one ... ok
 
 test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured
 ```
+
+## Configuring log target
+
+By default, `env_logger` logs to stderr. If you want to log to stdout instead,
+you can use the `LogBuilder` to change the log target:
+
+```rust
+use std::env;
+use env_logger::{LogBuilder, LogTarget};
+
+let mut builder = LogBuilder::new();
+builder.target(LogTarget::Stdout);
+if env::var("RUST_LOG").is_ok() {
+    builder.parse(&env::var("RUST_LOG").unwrap());
+}
+builder.init().unwrap();
+```