diff --git a/Cargo.lock b/Cargo.lock
index c6e7ecebc1300628462750ed714b9103e6a001c6..49af5ec2d47a9b795bb5ae0a4cf2b95c8b78a298 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1515,7 +1515,7 @@ dependencies = [
  "tonic",
  "tower",
  "tracing",
- "tracing-log",
+ "tracing-log 0.1.3",
  "tracing-subscriber",
  "unindent",
  "util",
@@ -6930,9 +6930,9 @@ dependencies = [
 
 [[package]]
 name = "sharded-slab"
-version = "0.1.4"
+version = "0.1.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "900fba806f70c630b0a382d0d825e17a0f19fcd059a2ade1ff237bcddf446b31"
+checksum = "f40ca3c46823713e0d4209592e8d6e826aa57e928f09752619fc696c499637f6"
 dependencies = [
  "lazy_static",
 ]
@@ -8316,6 +8316,17 @@ dependencies = [
  "tracing-core",
 ]
 
+[[package]]
+name = "tracing-log"
+version = "0.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ee855f1f400bd0e5c02d150ae5de3840039a3f54b025156404e34c23c03f47c3"
+dependencies = [
+ "log",
+ "once_cell",
+ "tracing-core",
+]
+
 [[package]]
 name = "tracing-serde"
 version = "0.1.3"
@@ -8328,9 +8339,9 @@ dependencies = [
 
 [[package]]
 name = "tracing-subscriber"
-version = "0.3.17"
+version = "0.3.18"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "30a651bc37f915e81f087d86e62a18eec5f79550c7faff886f7090b4ea757c77"
+checksum = "ad0f048c97dbd9faa9b7df56362b8ebcaa52adb06b498c050d2f4e32f90a7a8b"
 dependencies = [
  "matchers",
  "nu-ansi-term",
@@ -8343,7 +8354,7 @@ dependencies = [
  "thread_local",
  "tracing",
  "tracing-core",
- "tracing-log",
+ "tracing-log 0.2.0",
  "tracing-serde",
 ]
 
diff --git a/crates/rpc/src/notification.rs b/crates/rpc/src/notification.rs
index c5476469be90112e6ae294665c2bc53319cf38be..57131d3421787a71b4df0edefd59a3d7cfef865e 100644
--- a/crates/rpc/src/notification.rs
+++ b/crates/rpc/src/notification.rs
@@ -76,30 +76,35 @@ impl Notification {
     }
 }
 
-#[test]
-fn test_notification() {
-    // Notifications can be serialized and deserialized.
-    for notification in [
-        Notification::ContactRequest { sender_id: 1 },
-        Notification::ContactRequestAccepted { responder_id: 2 },
-        Notification::ChannelInvitation {
-            channel_id: 100,
-            channel_name: "the-channel".into(),
-            inviter_id: 50,
-        },
-        Notification::ChannelMessageMention {
-            sender_id: 200,
-            channel_id: 30,
-            message_id: 1,
-        },
-    ] {
-        let message = notification.to_proto();
-        let deserialized = Notification::from_proto(&message).unwrap();
-        assert_eq!(deserialized, notification);
-    }
+#[cfg(test)]
+mod tests {
+    use crate::Notification;
+
+    #[test]
+    fn test_notification() {
+        // Notifications can be serialized and deserialized.
+        for notification in [
+            Notification::ContactRequest { sender_id: 1 },
+            Notification::ContactRequestAccepted { responder_id: 2 },
+            Notification::ChannelInvitation {
+                channel_id: 100,
+                channel_name: "the-channel".into(),
+                inviter_id: 50,
+            },
+            Notification::ChannelMessageMention {
+                sender_id: 200,
+                channel_id: 30,
+                message_id: 1,
+            },
+        ] {
+            let message = notification.to_proto();
+            let deserialized = Notification::from_proto(&message).unwrap();
+            assert_eq!(deserialized, notification);
+        }
 
-    // When notifications are serialized, the `kind` and `actor_id` fields are
-    // stored separately, and do not appear redundantly in the JSON.
-    let notification = Notification::ContactRequest { sender_id: 1 };
-    assert_eq!(notification.to_proto().content, "{}");
+        // When notifications are serialized, the `kind` and `actor_id` fields are
+        // stored separately, and do not appear redundantly in the JSON.
+        let notification = Notification::ContactRequest { sender_id: 1 };
+        assert_eq!(notification.to_proto().content, "{}");
+    }
 }