diff --git a/core/src/services/hdfs/backend.rs b/core/src/services/hdfs/backend.rs
index c8842a2854c..81d76699459 100644
--- a/core/src/services/hdfs/backend.rs
+++ b/core/src/services/hdfs/backend.rs
@@ -52,6 +52,7 @@ use crate::*;
 /// - [ ] ~~scan~~
 /// - [ ] ~~presign~~
 /// - [x] blocking
+///
 /// # Differences with webhdfs
 ///
 /// [Webhdfs][crate::services::Webhdfs] is powered by hdfs's RESTful HTTP API.
diff --git a/core/src/services/redis/backend.rs b/core/src/services/redis/backend.rs
index 1afc0083ab8..137a32db305 100644
--- a/core/src/services/redis/backend.rs
+++ b/core/src/services/redis/backend.rs
@@ -45,13 +45,6 @@ const DEFAULT_REDIS_PORT: u16 = 6379;
 ///
 /// This service can be used to:
 ///
-/// - [x] read
-/// - [x] write
-/// - [ ] ~~list~~
-/// - [ ] scan
-/// - [ ] ~~presign~~
-/// - [ ] blocking
-///
 /// - [x] stat
 /// - [x] read
 /// - [x] write
diff --git a/core/src/services/sftp/backend.rs b/core/src/services/sftp/backend.rs
index 97c6081aeef..6769e62b77d 100644
--- a/core/src/services/sftp/backend.rs
+++ b/core/src/services/sftp/backend.rs
@@ -48,13 +48,6 @@ use crate::*;
 ///
 /// This service can be used to:
 ///
-/// - [x] read
-/// - [x] write
-/// - [x] list
-/// - [ ] ~~scan~~
-/// - [ ] ~~presign~~
-/// - [ ] blocking
-///
 /// - [x] stat
 /// - [x] read
 /// - [x] write
diff --git a/core/src/services/sled/backend.rs b/core/src/services/sled/backend.rs
index db7b3e25f32..19076114350 100644
--- a/core/src/services/sled/backend.rs
+++ b/core/src/services/sled/backend.rs
@@ -34,13 +34,6 @@ use crate::*;
 ///
 /// This service can be used to:
 ///
-/// - [x] read
-/// - [x] write
-/// - [ ] ~~list~~
-/// - [ ] scan
-/// - [ ] ~~presign~~
-/// - [x] blocking
-///
 /// - [x] stat
 /// - [x] read
 /// - [x] write