diff --git a/.travis.yml b/.travis.yml
index 5014e53fc..6df4a9d78 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -20,5 +20,7 @@ env:
     - TEST_DIR=p2p
     - TEST_DIR=chain
     - TEST_DIR=grin
+    - TEST_DIR=api
+    - TEST_DIR=pool
 
 script: cd $TEST_DIR && cargo test --verbose
diff --git a/api/src/rest.rs b/api/src/rest.rs
index c402f34d7..d03f4c790 100644
--- a/api/src/rest.rs
+++ b/api/src/rest.rs
@@ -346,9 +346,11 @@ mod test {
 	impl ApiEndpoint for TestApi {
 		type ID = String;
 		type T = Animal;
+    type OP_IN = ();
+    type OP_OUT = ();
 
-		fn methods(&self) -> Vec<Method> {
-			vec![Method::Get]
+		fn operations(&self) -> Vec<Operation> {
+			vec![Operation::Get]
 		}
 
 		fn get(&self, name: String) -> ApiResult<Animal> {
diff --git a/pool/src/pool.rs b/pool/src/pool.rs
index eb2b5faf0..b46891f7f 100644
--- a/pool/src/pool.rs
+++ b/pool/src/pool.rs
@@ -708,15 +708,15 @@ mod tests {
         // Now we prepare the block that will cause the above condition.
         // First, the transactions we want in the block:
         // - Copy of 1
-        let mut block_tx_1 = test_transaction(vec![10], vec![8]);
+        let block_tx_1 = test_transaction(vec![10], vec![8]);
         // - Conflict w/ 2, satisfies 7
-        let mut block_tx_2 = test_transaction(vec![20], vec![7]);
+        let block_tx_2 = test_transaction(vec![20], vec![7]);
         // - Copy of 4
-        let mut block_tx_3 = test_transaction(vec![8], vec![4,3]);
+        let block_tx_3 = test_transaction(vec![8], vec![4,3]);
         // - Output conflict w/ 8
-        let mut block_tx_4 = test_transaction(vec![40], vec![9]);
-        let block_transactions = vec![&mut block_tx_1, &mut block_tx_2,
-            &mut block_tx_3, &mut block_tx_4];
+        let block_tx_4 = test_transaction(vec![40], vec![9]);
+        let block_transactions = vec![&block_tx_1, &block_tx_2, &block_tx_3,
+          &block_tx_4];
 
         let block = block::Block::new(&block::BlockHeader::default(),
             block_transactions, key::ONE_KEY).unwrap();
@@ -821,8 +821,8 @@ mod tests {
             // TODO: This is ugly, either make block::new take owned
             // txs instead of mut refs, or change 
             // prepare_mineable_transactions to return mut refs
-            let mut block_txs: Vec<transaction::Transaction> = txs.drain(..).map(|x| *x).collect();
-            let tx_refs = block_txs.iter_mut().collect();
+            let block_txs: Vec<transaction::Transaction> = txs.drain(..).map(|x| *x).collect();
+            let tx_refs = block_txs.iter().collect();
             block = block::Block::new(&block::BlockHeader::default(),
                 tx_refs, key::ONE_KEY).unwrap();
         }