diff --git a/rust/arrow/src/array/builder.rs b/rust/arrow/src/array/builder.rs
index cd7f1073cbc..636cd767120 100644
--- a/rust/arrow/src/array/builder.rs
+++ b/rust/arrow/src/array/builder.rs
@@ -1458,5 +1458,4 @@ mod tests {
         let mut builder = StructBuilder::new(fields, field_builders);
         assert!(builder.field_builder::<BinaryBuilder>(0).is_none());
     }
-
 }
diff --git a/rust/arrow/src/bitmap.rs b/rust/arrow/src/bitmap.rs
index f82f773e6ba..76568ae33b5 100644
--- a/rust/arrow/src/bitmap.rs
+++ b/rust/arrow/src/bitmap.rs
@@ -126,5 +126,4 @@ mod tests {
         assert_eq!(true, bitmap.is_set(6));
         assert_eq!(false, bitmap.is_set(7));
     }
-
 }
diff --git a/rust/datafusion/src/execution/aggregate.rs b/rust/datafusion/src/execution/aggregate.rs
index e96b12f6d9e..1795f492c5a 100644
--- a/rust/datafusion/src/execution/aggregate.rs
+++ b/rust/datafusion/src/execution/aggregate.rs
@@ -1471,5 +1471,4 @@ mod tests {
             ds,
         )))))
     }
-
 }
diff --git a/rust/datafusion/src/execution/context.rs b/rust/datafusion/src/execution/context.rs
index 7e9616483c0..dc54b9978ec 100644
--- a/rust/datafusion/src/execution/context.rs
+++ b/rust/datafusion/src/execution/context.rs
@@ -682,5 +682,4 @@ mod tests {
 
         Ok(ctx)
     }
-
 }
diff --git a/rust/datafusion/src/execution/physical_plan/hash_aggregate.rs b/rust/datafusion/src/execution/physical_plan/hash_aggregate.rs
index 9c50b9f0825..491a81af855 100644
--- a/rust/datafusion/src/execution/physical_plan/hash_aggregate.rs
+++ b/rust/datafusion/src/execution/physical_plan/hash_aggregate.rs
@@ -720,5 +720,4 @@ mod tests {
 
         Ok(())
     }
-
 }
diff --git a/rust/datafusion/src/execution/physical_plan/merge.rs b/rust/datafusion/src/execution/physical_plan/merge.rs
index 9d1de2fd464..0ef8a39e8e6 100644
--- a/rust/datafusion/src/execution/physical_plan/merge.rs
+++ b/rust/datafusion/src/execution/physical_plan/merge.rs
@@ -134,5 +134,4 @@ mod tests {
 
         Ok(())
     }
-
 }
diff --git a/rust/datafusion/src/execution/physical_plan/projection.rs b/rust/datafusion/src/execution/physical_plan/projection.rs
index c1ca743002d..3cbf3d3887a 100644
--- a/rust/datafusion/src/execution/physical_plan/projection.rs
+++ b/rust/datafusion/src/execution/physical_plan/projection.rs
@@ -171,5 +171,4 @@ mod tests {
 
         Ok(())
     }
-
 }
diff --git a/rust/datafusion/src/execution/physical_plan/selection.rs b/rust/datafusion/src/execution/physical_plan/selection.rs
index ca5e58e3e21..7bea172c394 100644
--- a/rust/datafusion/src/execution/physical_plan/selection.rs
+++ b/rust/datafusion/src/execution/physical_plan/selection.rs
@@ -180,5 +180,4 @@ mod tests {
 
         Ok(())
     }
-
 }
diff --git a/rust/datafusion/src/execution/projection.rs b/rust/datafusion/src/execution/projection.rs
index 48752ea514c..cd4ea93a2cf 100644
--- a/rust/datafusion/src/execution/projection.rs
+++ b/rust/datafusion/src/execution/projection.rs
@@ -141,5 +141,4 @@ mod tests {
 
         assert_eq!("c1", batch.schema().field(0).name());
     }
-
 }
diff --git a/rust/datafusion/src/execution/table_impl.rs b/rust/datafusion/src/execution/table_impl.rs
index cb2cb1aa0a5..d0879bdb663 100644
--- a/rust/datafusion/src/execution/table_impl.rs
+++ b/rust/datafusion/src/execution/table_impl.rs
@@ -315,5 +315,4 @@ mod tests {
             true,
         );
     }
-
 }
diff --git a/rust/datafusion/src/logicalplan.rs b/rust/datafusion/src/logicalplan.rs
index 87c1694c4bc..c251abb4d6e 100644
--- a/rust/datafusion/src/logicalplan.rs
+++ b/rust/datafusion/src/logicalplan.rs
@@ -641,5 +641,4 @@ mod tests {
             println!("plan: {:?}", plan1);
         });
     }
-
 }
diff --git a/rust/datafusion/src/sql/planner.rs b/rust/datafusion/src/sql/planner.rs
index 7af24d7ba53..a73afdd62ea 100644
--- a/rust/datafusion/src/sql/planner.rs
+++ b/rust/datafusion/src/sql/planner.rs
@@ -569,5 +569,4 @@ mod tests {
             }
         }
     }
-
 }
diff --git a/rust/rust-toolchain b/rust/rust-toolchain
index 781a7d6cb5f..9e495a9f73e 100644
--- a/rust/rust-toolchain
+++ b/rust/rust-toolchain
@@ -1 +1 @@
-nightly-2019-07-30
\ No newline at end of file
+nightly-2019-09-25