bridge desc tests: Apply tracing_test::traced_test

This lets us see the log messages.  They look fine, as it happens.

Cargo.lock

@@ -3719,6 +3719,7 @@ dependencies = [
  "tor-rtcompat",
  "tor-rtmock",
  "tracing",
+ "tracing-test",
 ]
 
 [[package]]

crates/tor-dirmgr/Cargo.toml

@@ -80,6 +80,7 @@ tokio = { version = "1.7", features = ["full"] }
 tor-linkspec = { path = "../tor-linkspec", version = "0.5.1" }
 tor-rtcompat = { path = "../tor-rtcompat", version = "0.7.0", features = ["tokio", "native-tls"] }
 tor-rtmock = { path = "../tor-rtmock", version = "0.6.0" }
+tracing-test = "0.2"
 [package.metadata.docs.rs]
 all-features = true
 rustdoc-args = ["--cfg", "docsrs"]

crates/tor-dirmgr/src/bridgedesc/bdtest.rs

@@ -21,6 +21,7 @@ use futures::select_biased;
 use futures::stream::FusedStream;
 use futures::Stream;
 use itertools::{chain, Itertools};
+use tracing_test::traced_test;
 
 use tor_linkspec::HasAddrs;
 use tor_rtcompat::SleepProvider;
@@ -176,6 +177,7 @@ fn bad_bridge(i: usize) -> BridgeKey {
 }
 
 #[tokio::test]
+#[traced_test]
 async fn success() -> Result<(), anyhow::Error> {
     let (bdm, runtime, mock, bridge) = setup();