diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 1896bf97b6a..bb28d31d81d 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -31,7 +31,7 @@ jobs:
   tests:
     name: Unit tests
     runs-on: "ubuntu-latest"
-    timeout-minutes: 40
+    timeout-minutes: 60
     permissions:
       contents: read
       actions: write
@@ -105,7 +105,7 @@ jobs:
   lints:
     name: Lints
     runs-on: "ubuntu-latest"
-    timeout-minutes: 20
+    timeout-minutes: 60
     permissions:
       contents: read
       actions: write
diff --git a/quickwit/quickwit-cli/src/index.rs b/quickwit/quickwit-cli/src/index.rs
index 6bdbfa86688..7eb6daeaddd 100644
--- a/quickwit/quickwit-cli/src/index.rs
+++ b/quickwit/quickwit-cli/src/index.rs
@@ -1266,7 +1266,7 @@ mod test {
         let mut split_4 = template_split;
         split_4.split_metadata = split_metadata_4;
 
-        let splits = vec![split_1, split_2, split_3, split_4];
+        let splits = [split_1, split_2, split_3, split_4];
 
         let splits_num_docs = splits
             .iter()
diff --git a/quickwit/quickwit-cli/src/main.rs b/quickwit/quickwit-cli/src/main.rs
index 3c6d6bc5daf..01b37a34266 100644
--- a/quickwit/quickwit-cli/src/main.rs
+++ b/quickwit/quickwit-cli/src/main.rs
@@ -133,7 +133,6 @@ fn about_text() -> String {
 
 #[cfg(test)]
 mod tests {
-    use std::path::PathBuf;
     use std::str::FromStr;
     use std::time::Duration;
 
@@ -683,7 +682,7 @@ mod tests {
                 split_id,
                 target_dir,
                 ..
-            })) if &index_id == "wikipedia" && &split_id == "ABC" && target_dir == PathBuf::from("datadir")
+            })) if &index_id == "wikipedia" && &split_id == "ABC" && target_dir == *"datadir"
         ));
         Ok(())
     }
diff --git a/quickwit/quickwit-control-plane/src/indexing_scheduler/mod.rs b/quickwit/quickwit-control-plane/src/indexing_scheduler/mod.rs
index 98651f809c4..24992209b9c 100644
--- a/quickwit/quickwit-control-plane/src/indexing_scheduler/mod.rs
+++ b/quickwit/quickwit-control-plane/src/indexing_scheduler/mod.rs
@@ -981,7 +981,7 @@ mod tests {
             index_uid: IndexUid::for_test("index-2", 0),
             source_id: "source2".to_string(),
         };
-        let sources = vec![
+        let sources = [
             SourceToSchedule {
                 source_uid: source_1.clone(),
                 source_type: SourceToScheduleType::NonSharded {
diff --git a/quickwit/quickwit-proto/src/codegen/quickwit/quickwit.search.rs b/quickwit/quickwit-proto/src/codegen/quickwit/quickwit.search.rs
index cd051fb9c33..1161416a2c1 100644
--- a/quickwit/quickwit-proto/src/codegen/quickwit/quickwit.search.rs
+++ b/quickwit/quickwit-proto/src/codegen/quickwit/quickwit.search.rs
@@ -143,6 +143,9 @@ pub struct SearchRequest {
     /// Time filter, expressed in seconds since epoch.
     /// That filter is to be interpreted as the semi-open interval:
     /// [start_timestamp, end_timestamp).
+    /// If the query AST contains a range query over the timestamp field,
+    /// then the the bounds of the range query are used directly and
+    /// these two fields are ignored.
     #[prost(int64, optional, tag = "4")]
     pub start_timestamp: ::core::option::Option<i64>,
     #[prost(int64, optional, tag = "5")]
diff --git a/quickwit/rust-toolchain.toml b/quickwit/rust-toolchain.toml
index a7a5e1afcc8..e54a09951e9 100644
--- a/quickwit/rust-toolchain.toml
+++ b/quickwit/rust-toolchain.toml
@@ -1,4 +1,4 @@
 [toolchain]
-channel = "1.90"
+channel = "1.91"
 components = ["cargo", "clippy", "rustfmt", "rust-docs"]